KR20160012437A - mortar grout compaction grouting system - Google Patents
mortar grout compaction grouting system Download PDFInfo
- Publication number
- KR20160012437A KR20160012437A KR1020140093863A KR20140093863A KR20160012437A KR 20160012437 A KR20160012437 A KR 20160012437A KR 1020140093863 A KR1020140093863 A KR 1020140093863A KR 20140093863 A KR20140093863 A KR 20140093863A KR 20160012437 A KR20160012437 A KR 20160012437A
- Authority
- KR
- South Korea
- Prior art keywords
- grout
- mortar
- mortar grout
- injection
- distribution
- Prior art date
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/123—Consolidating by placing solidifying or pore-filling substances in the soil and compacting the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Abstract
In order to improve the construction efficiency and to improve the construction quality of the complex grouting system, the mortar grout reformer is formed by injecting mortar grout into the ground to be improved, The mortar grout is simultaneously injected in parallel to the injection hole of the mortar grout so that the columnar reformer can be formed into a uniform and regularized standard by the underground pressurization of the mortar grout,
Mortal grout In the process of forming grout, which is pressurized in situ in the process of establishing the grouting system, the quality and quality control measures of the mortar grout are more homogeneous and easier than the current method. The present invention also provides a system and method for simultaneous distribution and supply of mallet grout for increasing the efficiency of construction and reducing the construction cost in the process of supplying mallet grout to each position of the improvement target ground, Thereby forming a molar grout columnar reformer, and includes a device and a method for making the forming standard of the molar grout columnar reformer as homogeneous as possible.
Description
The present invention relates to a compaction grouting system for improving or reinforcing a target ground by static pressure compaction injection of a mortar grout in a predetermined range of the ground. More particularly, the present invention relates to a compaction grouting system for forming a mortar grout to be press- The system includes a system and a method for making the mallet grout quality and quality control means more homogeneous and easier than the current method in the process of continuously producing and supplying the mallet grout at the site, The system includes a simultaneous distribution system and method for simultaneous distribution of grout grout for increasing construction efficiency and construction cost. In the process of forming molar grout reformer by pressurizing molar grout into the ground, formation of molar grout reformer To ensure that the specification is as uniform and uniform as possible Apparatus and method thereof.
BACKGROUND ART [0002] A prior art relating to a field of a compaction grouting system for improving or reinforcing a target ground by static pressure compaction injection of a mortar grout to a predetermined range of the ground is as follows.
The foundation foundation construction method using the compaction grouting based on the patent No. 10-0209247 uses a cement mortar grout with a slump of 0 to 2 cm to raise the inflow pipe at regular intervals This is a technology of underground foundation method using compaction grouting in which the ultrahigh strength foundation is constructed in a lump shape while controlling the discharge amount in stages.
A compaction grouting method based on Japanese Patent No. 10-1081343 includes the steps of inserting a hollow file having a predetermined length equipped with a bit; Filling the soft ground by injecting grout through the hollow file while slowly raising the hollow file; Removing the hollow file and inserting the white pipe to a certain depth before the grouting is cured, when the filling of the grout is completed from the soft ground to the planned depth; Once the inserting of the white pipe is completed, a step is performed to the depth of the plan, the white pipe exposed above the planned depth is cut, and then the 'a' type reinforcing bar made of the horizontal part and the vertical part is inserted into the inside of the white pipe before the grouting is cured. And a step of constructing the upper surface of the inserted white pipe and the reinforcing bar of 'a' type to be embedded in the concrete layer according to the finishing work,
In the ground restoration grouting method based on the multi-point injection based on Patent No. 10-0941916, a multi-point grout supply line, which is divided into a plurality of pieces from one pump, is installed by applying multi-point injection distribution means, and sequentially switching It is a technology to supply grout, and pump and injection hole are connected in series, but sequential conversion injection can be made so that it is possible to measure the displacement in restoration works of unevenly settled structures and make it easy to achieve the purpose of construction, Which is a technique of a compaction grouting method,
The prior art by the applicant of the present application is a quantitative equal multi-distribution feeder of a low-flow viscous mortar grout based on patent No. 10-1213448, which is divided into a plurality of lines from a mortar grout extrusion line connected to a large-capacity mortar grout extrusion pump, Although the grout is fed in parallel, the mortar grout supply amounts for each supply line are different from each other even if there is a difference in the pressurization force of the mortar grout acting in the supply pipe according to the difference between the ground properties and the ground stress for each supply line. In order to accomplish the purpose of uniform distribution in parallel, grout branch inlets connected to mortar grout extrusion pump are constructed independently of each other but they are assembled together and generate rotational force by the pressure force of mortar grout, The rotational forces are shared and controlled, A plurality of distributors for distributing the molten grout in the number of mullet grout lines to be branched into three or more mul- tiple distributors, and a mortar grout for distributing the mul- tall grout distributed through the distributor, And an outlet of the piping structure for returning the piping structure to the piping structure.
The uniform pressure multi-distribution feeder of the low-flow viscous mortar grout based on the patent 10-1277106 is a prior art by the present applicant, comprising a mortar grout conveyor pipe connected to one mortar grout extruder pump and three or three multiples A first distributor and a second distributor in the form of a pipe network configured to distribute and share the differences in the ground receiving reaction forces due to the pressurization of the mortar grout acting in each supply pipe between the simultaneous parallel distribution supply lines connected to the injection holes of the parts, And a third distributor, which is a multi-parallel distribution unit of uniform pressure, which is intended to be equally distributed to a plurality of parallel distribution units of a low-flow viscous mortar grout based on Patent No. 10-1213448 It is applied to the case where the purpose of branching supply is more uniform than the purpose of branching supply in equal amounts for each supply line. Wherein the grouting method comprises the steps of:
The uniform distribution of the grooved mortar grout supplied from the large-capacity mortar grout pressure pump based on the patent 10-1337371 and the uniform distribution of the grooved mortar grout using the multi-distribution supply apparatus are the prior art by the present applicant, In order to make it possible to easily adjust the injection amount and the injection time per one pumping time suitable for the condition of the target ground in which the mortar grout is extruded at a large capacity per pumping number in one large-capacity mortar grout pump, A fired mortar grout inlet pipe; A homogenous molten grout homogenous multi-component pipe having a first distribution pipe, a second distribution pipe, and a third distribution pipe; A first step of adjusting the stroke time per pumping of the mortar grout high-capacity feed pump by using an equal-amount multi-feed feeder of a viscous mortar grout constituted by the combination of the hydraulic feed motor and the reduction hydraulic motor; A second step of determining and adjusting the rotation speed of the deceleration hydraulic motor through the viscous mortar grout uniformity multi-distributor and distributing the same to the respective injection holes in an equal amount; Wherein the hemispherical distributor rotates in a clockwise direction in response to the driving of the decelerating hydraulic motor and supplies the viscous mortar grout fed to the homogeneous molten grout homogenizer multi-distribution pipe to the three homogeneous molten grout homogenizer distribution pipes Step 3; And a fourth step in which an appropriate unit injection amount is continuously supplied to the improvement target ground at an appropriate unit time interval through the injection pipe through the above-described process so that the ground improvement material is formed by the grooved mortar grout. .
As described above, the technical development of the method for the production of the compaction grouting is mainly concerned with a problem of poor construction efficiency, which is a problem inherent in the compaction grouting system, and a problem that the composition standard is irregularly formed in the process of forming the mortar grout column reformer This is a process in which technology development is being carried out as an improvement measure against the problem.
The mortar grout compaction grouting system according to the present invention is an improvement of the present invention in order to propose a compaction grouting system in an improved and efficient manner in the above-mentioned conventional method of compaction grouting,
Mortal grout is injected under pressure into soft ground to produce high strength and high quality mortar grout column reformer. In this process, compressive compaction and density enhancement of paper sheet are combined with the improvement of engineering properties. In the process of faction grouting, it is suggested that the method of construction management can be made simpler and more efficient than the existing method, and the construction speed and construction economy are improved by increasing the construction efficiency, and the mortar grout reformer In order to satisfy the purpose and expectation of the construction, the mortar grout reformer is to be constructed in the ground with the homogeneous quality and the standardized standard. The purpose is to present,
To achieve this goal,
first; The method of producing and supplying mallet grout to be pressurized in the ground. In the existing continuous continuous mixing production supply method, the blending materials which are metered and fed each of the blending materials into separate systems are mixed in a mortar grouting plant to produce continuously The Mortar Grout Production and Supply System is an effective and efficient production management method in terms of applicability and economical efficiency in various field conditions. However, the production system of Mortar Grout for the production of mortar grout Since each material is dispersed and weighed into separate systems, it is added to the mortar grout mixing plant. Therefore, the input quantity management and production control for each material are dispersed according to the mixing design, and the error or error of the input quantity of each material for each material, And therefore, the mortar grout life But the production easier to manage than simplify the supply system, and have to present the plan to ensure the quality of the produced mortar grout can be more homogeneous than in the case according to conventional methods,
second; In order to inject the mallet grout into the ground by limiting the amount of injection per unit time suitable for the ground condition to be injected in the process of supplying the mallet grout produced and supplied, a relatively small capacity mortar grout extrusion pump is directly connected to one injection hole The mortar grout is pressed into the ground by restricting the amount of injection per unit time suitable for the ground condition to be injected, and the mortar grout is pressed into the ground, A method of pressurizing the mortar grout at the same time in parallel by supplying the mortar grout in parallel at the same time by using a large capacity extrusion pump than the mortar grout extrusion pump used in the conventional method, In order to prevent the occurrence of differential indentation according to the conditions And market needs,
third; In the conventional method of pushing the mortar grout downward from the tip of the hollow injection pipe during the pressurization of the mortar grout, the pressurization of the mortar grout is frequently deflected and the mortar grout is pressed into the mortar grout, In the process of forming the modifier by the grout, the pressurization of the mortar grout is concentrated at the portion where the reaction force of the ground plastic deformation resistance is the smallest on the boundary surface between the ground plate body and the mortar grout reformer, Since the pressurization of the mortar grout is continued downward in the course of the injection, the force to press the mortar grout is transferred to the portion where the reformer is formed, so that the improvement body composition standard is irregular and the effect as the ground structure material is exerted Many problems that can not be solved As a countermeasure, the mortar grout with viscous plasticity is injected under pressure into the ground, and the soil is pressed and compressed to secure the space. In the process of constructing the mortar grout reformer, The occurrence of the indentation expansion can maintain the intended position and depth of the mortar grout in the underground, even if it is inevitably caused by the ground improvement concept of the compaction grouting. Also, It is necessary to propose a plan to make it possible to be formed as'
fourth; Also, in the method of pressurizing the mortar grout into the ground, the injection pipe is artificially drawn out at a predetermined interval in accordance with the mortar grout reformer standard to be filled in the ground, In the present method, as an improvement measure against the problem that the mortar grout reformer formed in the ground is interrupted in the middle, or the quality of the construction result is not secured due to the expansion of the injection material in a different direction according to the injection position, It is necessary to suggest ways to increase the reliability of homogenization of mortar grout columnar reformer, homogenization of compositional shape and homogeneity of construction quality.
According to an aspect of the present invention, there is provided a mortar grouting complex grouting system,
A step of mixing and producing molant grout; Simultaneously delivering the mallet grout produced by the simultaneous dispensing to a plurality of injection systems in an equal amount in parallel through a massive mortar grout extruding pump and a multi-point simultaneous dispensing feeder; Uniformly inducing a mortar grout pumped through each injection system in a transverse direction to a target ground through an end injection device; During the time that the mortar grout is pressurized into the ground during the upward inflow from the bottom to the top of the target ground, the injection rate of the injection pipe set considering the amount of mortar grout injection and the time required for securing the size of the columnar reformer And a step of maintaining a process of upwardly drawing the injection tube at a constant speed by mechanical control and causing homogeneous and uniform injection according to the depth of injection. In addition, The following is an explanation.
First, in the process of mixing and producing molal grout to be pressurized in the ground and supplying it, existing coarse aggregate production and supply methods include a method in which coarse aggregate (C.agg), fine aggregate (F.agg) (Wat), cement (cem), and other admixing material (adm) are weighed separately into a
As a countermeasure and an improvement measure, as shown in [Fig. 12], the coarse aggregate (C.agg) and fine aggregate (F.agg) were pre-screened A system to be charged into the
More specifically, in the mortar grout combination material, the aggregate is mixed with the aggregate (c.agg) and the fine aggregate (f.agg) in the form of a mixed aggregate (m.agg) The cement cement and other admixtures adm and the mixing amount wat are separately supplied to the
The reason why the degree of management is satisfied as a measure for quality control of mortar grout to be press-fitted into the ground by the above-
The quality and strength of mallet grout are mainly controlled by the mixing ratio of coagulant (c.agg) and fine aggregate (f.agg) and the water-cement ratio of liquid grout, which is a fire. Therefore, Under the condition of maintaining the water-cement ratio, the molar grout produced by mixing is solidified in the state of being pressed into the ground unless the amount of the liquid grout is not excessively small. Therefore, one liquid grout contained in the mortar grout, Since the liquid grout sufficient to bond and solidify between the aggregate and the aggregate particles forming the mortar grout reformer and penetrate into the ground is cemented in a state sufficiently enclosed, the strength and quality of the mortar grout reformer are homogeneous within a predetermined range This is why it can be maintained,
On the contrary, in the case of mortar grout containing liquid grout which is not sufficient for solidification and strength development of mortar grout, the liquid grout contained in mortar grout is diluted by drawing water from surrounding ground, , It can cause the deterioration of the water-cement ratio of the liquid grout, which has the greatest influence on the quality and strength development of the mortar grout remodeling material, which may be a harmful influence on the quality of the mortar grout remodeling material.
Also, in the continuous continuous type mixing production and supply system in which all the compounding materials separated and supplied from the respective supply systems are simultaneously mixed into the
Second, at the stage of simultaneous multi-point parallel distribution of molar grout through a large-capacity mortar grout extruding pump at a plurality of injection systems, in a compaction grouting system using a conventional mortar grout pressure compaction injection, During the press-in process of the grout, the ground is plastic-deformed and the ground press-in amount of the mortar grout per unit time should be adjusted according to the difference of conditions that can accommodate the mortar grout. However, As shown in FIG. 16, a system in which a relatively small-capacity mortar grout extrusion pump is directly injected into individual injection holes is applied by a method in which the amount of injection per unit time is limited. As a result, the construction efficiency is poor, As a result, the construction cost increases There is a disadvantage in that,
As a countermeasure and improvement measure therefor, a soil restoration grouting method by multi-point injection using a multi-point injection distribution means based on Patent No. 10-0941916 and a low-flow viscous mortar grout based on Japanese Patent No. 10-1213448 A uniformly distributed multi-distribution supply device of a low-flow-rate martial grout based on Patent No. 10-1277106, a multi-distribution supply device of a molten mortar grout supplied from a large-capacity mortar grout pressure pump based on patent No. 10-1337371 There have been developed technologies such as an equal-amount multi-distribution supply apparatus and an equal-amount multi-distribution supply method of the grooved mortar grout using the same,
Here, as shown in FIG. 17, the soil restoration grouting method using multi-point injection using the multi-point injection distributing means based on Patent No. 10-0941916 precedes the connection of the mortar grout supply and the underground indenting system to the injection holes Injection system is a system in which injection system and pump are directly connected to each system, and injection systems installed in multiple places are sequential conversion injection system. Therefore, when there is a reason to temporarily suspend injection system, It is possible to prevent the waste of the construction time and to improve the construction efficiency. However, the range of the effectiveness is limited,
A quantitative equal distribution feeder of low-flow viscous mortar grout based on patent 10-1213448 by the present applicant, a uniform-pressure multi-distribution feeder of low-flow viscous mortar grout based on patent No. 10-1277106, patent 10 -1337371, the uniform distribution of the grooved molten grout supplied from the grout pressure pump, and the uniform distribution of the grooved molten grout using the same, and the like, In addition, it is possible to increase the construction time and the construction efficiency even more, compared with the conventional method, because it can perform simultaneous multi-point injection by connecting the parallel system to the injection hole. However, There is a problem of an increase in the cost burden to be added.
Therefore, in the compaction grouting system according to the present invention, a quantitative equal multi-distribution supply device of a low-fluidity viscous mortar grout based on the prior art Patent No. 10-1213448 by the present applicant, a low-flow viscous mortar based on Patent No. 10-1277106 The concept of the use of a large-volume mortar extrusion pump using a uniform-pressure multi-distribution feeder of grout and a multi-point parallel simultaneous distribution injection is further improved to show a construction system of a compaction grouting system according to the present invention of FIG. 1 2] in the compaction grouting system according to the present invention, a method of establishing and constructing a construction system as shown in a schematic diagram showing a construction system of multi-
Mortar grout supply system switching levers 37-1, 37-2, and 37-3 are provided for each of the injection system branch lines of the multi-point parallel dispensing apparatus 20 as shown in FIG. 3, and the mortar grout multi- Parallel simultaneous distributing device The injection operation is carried out in a state in which the grid connection capable of switching supply to the first supply pipe and the second supply pipe is provided for each of the branching outlets 35-1, 35-2 and 35-3, In the case of simultaneous multi-point parallel distribution injection into the first supply line by line, it is necessary to switch to injection into the second supply line for each branch line so that the worker can take time and work, It is possible to repeatedly perform the switching injection to the supply line and the second supply line as necessary so that the simultaneous multi-point dispensing injection can be maintained at all times so that the construction time is not wasted or the construction efficiency is not lowered.
Thirdly, the mortar grout supplied through each injection system is improved through the end injection device or is injected in the lateral direction to the ground to be reinforced. In the course of upward injecting from the lower end to the upper end of the ground to be improved or reinforced, The amount of injection of mortar grout and the rising time of the injection tube considering the time required for securing the size of the columnar reformer are set so that the injection tube is pulled upward at a constant speed by mechanical control In the step of making homogeneous and even injection according to depth of injection,
In a conventional compaction grouting system by mortar grout pressure compaction injection, the pressurization of mortar grout in the ground is extruded downward from the tip of the hollow injection pipe, and the injection amount of the soil to be injected is controlled, The injection amount is injected in a state in which the tip end of the injection tube is stopped and the injection tube is pulled up by the artificial operation upward at regular intervals after the specified amount is injected, A step - up injection method is repeated in which a predetermined amount corresponding to the length of the withdrawn state is injected in the stopped state. However, according to this method, the existing compaction The problem with the grouting system is
First, since the mortar grout is discharged downward from the tip of the hollow injection tube, downward pressure is applied to the mortar grout columnar reformer formed from the lower end of the injection depth, and in some cases, And the output of the mortar grout discharged from the upper part is increased to cause conduction or depression of the columnar reformer and disconnected from the subsequent mortar grout injection material, thereby making it impossible to form the reformer insoluble as the ground structure material. In addition, the method of raising and injecting the injection tube by an artificial operation at regular intervals is a method in which the injecting tube is drawn at a predetermined distance from the previous injected position and the next step, and then the injected position is injected into the mortar grout Since there is a difference between the direction and the condition of receiving the injection material, In the process of forming the juipjae compresses the ground and improving the columnar body for injecting in step with each other, such as those that may be inappropriate injection management method does not have a continuity and homogeneity,
As measures and remedies for this, in a mortar grouting compaction grouting system according to the present invention, a method of performing mortar grout lateral induction injection by a tip injection apparatus as shown in FIG. 11, and FIG. 19 The
This process consists of three mortar
As described above, the process of forming the compaction grouting system according to the present invention has the following features and effects.
first; In the process of mixing and producing mallet grout, in the process according to the existing technology, in mixing and production of mortar grout, at least four kinds of materials are mixed with each other by metering control by a separate supply system, In order to minimize the quality error incurred by various factors and to improve the quality control inconveniences that need to be adjusted and managed separately, the Mortar Grout Compaction In the grouting system, the mixing and production process of mortar grout is controlled by supplying and mixing the two materials of mixed aggregate (M.agg) and liquid grout (Liq.g) so that homogeneous quality mortar grout is produced and supplied, Mortar grout mixing and production management and quality control are simpler and easier than existing methods So that the quality of the resultant mallet grout can be maintained homogeneously up to the point of compression and consolidation in the ground.
second; By applying the simultaneous distribution and supply of the mortar grout extruded from the large-capacity mortar grout extruding pump simultaneously to the multiple injection holes with appropriate injection amount per unit time according to the ground condition by applying the multi-point parallel simultaneous distribution supply device 20, And a switching device for switching the first and second supply lines for each branch line branched from the parallel simultaneous distribution and supply device 20 is provided It is possible to easily switch between the supply of mortar grout to the first supply pipe line and the second supply pipe line and the pressurization to the underground when necessary, so that the effect of improving the construction efficiency and the economical efficiency of construction by simultaneous multi- In addition,
third; In a conventional compaction grouting system using mortar grout pressure compaction injection, the method in which the mortar grout is pressed in the direction of the ground is applied by pushing the mortar grout downward from the tip of the hollow single-tube injection pipe, In the process of forming the mortar grout reformer by the injection, the harmful effect on the self-reliance of the columnar reformer and the unexpected rise of the injection tube caused by the operation of the ground reaction force exceeding a certain level, There are many factors that cause irregular expansion of the mortar grout indentation direction depending on the depth of ground of the target ground, loss of efficiency as the ground structure material and loss of expected effect, In the compaction grouting system according to the present invention, A separate end injection device is installed at the lower end of the inlet, and the mortar grout, which is fed through the injection pipe, is divided into six equal parts in the circumferential direction of the mortar grout columnar reformer to be formed at the side of the end injection device, The reaction force of the plastic deformation resistance in the ground due to the pressurization of the mortar grout acts in the axial direction of the injection pipe so as to block the factors causing the injection pipe to rise or break away from the injection position, It is possible to minimize the harmful effect on the mallet grout columnar reformer injected by the injection port and to form a uniform and regular columnar metering body over the entire depth of the injection target,
fourth; In a compaction grouting system using conventional mortar grout pressure compaction injection, the injection port height and the injection amount are set in a certain range of the injection depth in the mortar grout injection method. In each step, The injection tube is drawn out at a predetermined height by an artificial operation of the drawer after the injection amount of the injection tube is pressurized to the ground, and the tip of the injection tube is stopped and re-injected. In contrast to this, In the grouting system, the pressurization control of the mortar grout in the ground in the process of upwardly injecting from the lower end to the upper end of the injection target ground is performed by the stroke time interval of the pump, the injection amount per unit time of the injection mortar grout, The rising speed of the injection tube considering the time required for securing the specification of the desired columnar reforming body By adopting the system that homogeneous and uniform injection is performed according to depth of injection in the course of upward injection of the injection tube by mechanical control at the constant speed by setting, it is possible to minimize the occurrence of construction error due to construction error and artificial operation, The construction quality control of the object is easier and the reliability of the resultant object can be further secured.
1 is a view showing a construction system of a mortar grouting complex grouting system according to the present invention;
2 is a schematic view showing a construction system of a multi-point parallel simultaneous injection in a mortar grouting complex grouting system according to the present invention.
FIG. 3 is an external view of the structure of the multipoint parallel distribution unit 20
4 is a schematic view of the mallet grout inlet structure of the multi-point parallel dispensing feeder 20
5 is a schematic view of a multi-point parallel simultaneous distribution port rotary shaft and a driving apparatus perspective view of the multi-
6 is a schematic diagram of a multi-point parallel simultaneous distribution area structure of the multipoint parallel distribution unit 20
FIG. 7 is a schematic view showing the structure of the mortar grout supply
8 is a schematic view showing a mallet grout branch line switching supply by a lever operation in the mortar grout supply
Figure 9 is a cross-sectional view of the front end injection apparatus,
10 is a schematic view showing a process in which the inner pipe of the mortar grout tip injection device is pierced while being coupled to the outer surface of the outer pipe during piercing;
11 is a schematic view showing a process in which the inner pipe is pushed downward by the end closure during the injection of the mortar grout after the completion of the perforation and the mortar grout extrusion port is opened
12 is a view showing a system of a continuous mallet grout production process in a mortar grouting compaction grouting system according to the present invention
13 is a diagram showing a process sequence of continuous mixing grout production in a conventional compaction grouting system
14 is a view showing a system for continuous production of a liquid-phase grout continuous compound feeder (11)
15 is a structural outline diagram of the liquid grout
16 is a view showing a mortar grout supply system of an extrusion pump-injection hole direct connection structure in a conventional compaction grouting system
17 is a view showing a mortar grout feeding system of a multi-point switching injection system of an extrusion pump-injection hole direct connection structure in a soil restoration grouting method by multipoint injection with multipoint injection distribution means in existing compacting grouting systems
18 is a view showing a mortar grout supply system in a method of simultaneously injecting multiple points by connecting a parallel injection system with a plurality of injection holes by the applicant of the existing compaction grouting system
19 is a circuit diagram of the injection system hydraulic
20 is an external view of the structure of a quantitative equal multi-distribution supply system of a low-flow viscous mortar grout based on the applicant's prior art Patent No. 10-1213448
Fig. 21 is an internal view of a distributor of a quantitative equal multi-distribution feeder of a low-flow viscous mortar grout based on the prior art Patent No. 10-1213448 of the present applicant
22 is an external view of the structure of a quantitative equal multi-distribution supply system of a low-flow viscous mortar grout based on the applicant's prior art Patent No. 10-1337371
Hereinafter, concrete details of the mortar grouting compaction grouting system according to the present invention will be described.
FIG. 1 is a view showing a construction system of a compaction grouting system according to the present invention, and FIG. 2 is a schematic diagram showing a construction system of a multi-point parallel simultaneous injection in a compaction grouting system according to the present invention
As shown in FIG. 1 and FIG. 2, a mortar grouting complex grouting system according to the present invention comprises:
Mortar grout blend material to be fed into a
The mallet grout fed by the multi-point parallel distribution unit 20 is fed to the multi-point parallel distribution unit 20 as shown in [Figure 3], [Figure 4], [Figure 5], [Figure 6], [Figure 7] Three mortar grout multipurpose simultaneous distribution device branching extruders 35-1, 35-2 and 35-3 are connected by the operation of the multipoint parallel simultaneous distribution
The mallet grout pressurized to the respective injection holes through the mortar grout homogeneous multi-point parallel simultaneous distribution supply system has a tip end mounted on the tip of the
In the process of injecting the mortar grout into the ground by dividing the injection amount by depth, the amount of mortar grout supplied per unit time that the mortar grout is fed to each injection hole, the amount of mortar grout required to form mortar grout of a predetermined standard, The upward drawing rate of the
In the process of mixing and supplying the mortar grout blend material with two systems of liquid grout (Liq.g) supply system through the mixing aggregate (m.agg) supply system and the liquid grout continuous
First, the process of producing the mixed aggregate (m.agg) is carried out by bringing the coarse aggregate (c.agg) and the fine aggregate (f.agg) into each other to separate the impurities and the non-standard aggregate, (M.agg) mixed by mixing is continuously fed into the
The continuous mixing and production and supply of the liquid grout (Liq.g) is carried out by the liquid grout continuous compound feeder (10) having the system and the apparatus as shown in FIG. 14 and FIG. 15, The mixing material is continuously metered in at an input amount per unit time set in the
The liquid grout blending material put into the
In addition, the
The mallet grout producing material charged into the
The concrete means and method in the simultaneous parallel distribution and supply of the molar grout produced by the combination with a plurality of injection systems through the large-capacity mortar grout extruding pump are as follows: [0040] FIG. 1 shows a construction system of the compaction grouting system according to the present invention And a construction system as shown in a schematic diagram showing a construction system of a multi-point parallel simultaneous injection in a compaction grouting system according to the present invention of FIG. 2,
The mortar grout G20 which is fed to the inside of the multipoint parallel distributing and supplying device 20 in one large volume mortar
Mortar grout, which is supplied in parallel to the three branching extruding ports 35-1, 35-2, and 35-3 in an even amount in parallel, is fed to the tip of each of the branching extruding ports 35-1, 35-2, 7 and Fig. 7 by the operation of the mortar grout supply system switching lever 37-1, 37-2, 37-3 in the mortar grout supply system switching ports 36-1, 36-2, As shown in FIG. 8, the first and second supply lines 38-1-1, 38-1-2, 38-2-1, 38-2-2, 38-3-1, and 38-3 -2), it is possible to facilitate the switching of the mortar grout feeding system whenever necessary at any time, so that parallel simultaneous distribution injections to all three injection holes are maintained in a state where the injection system is installed with a total of six injection holes, and When the parallel simultaneous distribution injection of a plurality of points is not necessary, a part or a plurality of injection pipelines of the six branch pipelines to be branched are connected to the mortar grove return line 39 and are returned to the pump hopper so as to be recirculated. .
The above measures are based on the prior art patent application No. 10-1213448, which has been filed and registered by the applicant of the present invention, and a high-capacity mortar grout based on patent No. 10-1337371 This is similar to the technique by the uniform distribution multi-distribution supply method of the homogeneous molten grout supplied from the pressure pump, and the homogeneous multi-distribution supply method of the grooved mortar grout using it.
The quantitative equal multi-distribution feeder of the low-flow viscous mortar grout based on Japanese Patent No. 10-1213448 comprises three distributors, which are separated and combined so as not to communicate with each other by the partition walls as shown in Figs. 20 and 21 In the inside of each distributor, there are three variable rotary plates which are connected to the concentric axis of the eccentric axis which is different from the central axis of the distributor and control the rotational speed of each other, And the molten grout is uniformly distributed and supplied to the three branch lines. However, in the multi-point parallel simultaneous distribution and supply apparatus 20 in the mortar grouting compaction grouting system according to the present invention, And the molten grout is connected to the molten grout through the three mortar grout branch-pressure openings (22-1, 22-2, 22-3) Point parallel simultaneous distribution
A multi-distributor of homogeneous molten grout supplied from a large-volume mortar grout pressure pump based on Patent No. 10-1337371, and a multi-distributor of the technology by an equal-amount multi-distributing feed method using the same, 22], and by controlling the sequential opening and closing time intervals of the three branching outlets in accordance with the one stroke time of the
The concrete procedure and means in the process of pressurizing and injecting the mortar grout at a predetermined position according to the depth of injection of the mortar grout pumped to each of the injection holes through the mortar grout homogeneous multi-point simultaneous distribution supply system,
A tip injection apparatus constituted by a combination of the tip injection apparatus
Before the
The tip
The leading
A total of six mortar
The concrete means and method in the process of injecting the mortar grout by dividing the injection amount by the depth of injection into the ground,
The amount of mortar grout required per unit length of the column reformer, the amount of mortar grout per one stroke of the
In the injection system hydraulic
6 lines of mortar grout parallel distribution (1 column, 2 column, 3 column) Parallel distribution of the mortar grout in the first supply line and the second supply line of the supply system was carried out in parallel, The operation of the ejector apparatus adjusting levers 41-1, 41-2, 41-3, 41-4, 41-5, and 41-6 and the operation of the
When the molten grout is to be switched to the first supply pipe line or the second supply pipe line by three systematic lines in which the simultaneous distribution and feeding is performed in parallel, the mortar grout supply system switching lever (37-1, 37-2, 37-3) The injection system line of the mortar grout and the injection pipe (not shown) of the mortar grout by the upward / downward / downward operation of the pipe constant velocity pullout device adjustment levers 41-1, 41-2, 41-3, 41-4, 41-5, 50) at the constant velocity,
In addition, the construction record for this entire process is measured from the
10; Continuous mixer for liquid grout
11; Mixing plant hopper
12; Mixing Plant Continuous Mixing Discharge Auger
13; Extrusion pump hopper
14; Mortar grout extrusion pump
15; Mortar grout pressure transmission line
20; Multipoint Parallel Simultaneous Distribution Supply
21: Mortar Grout Conveying pipe connection pipe
22-1, 22-2, 22-3: Mortar grout
30: Multipoint Parallel Simultaneous Split Volleyball
31: Multi-point parallel simultaneous dispensing ball rotary shaft
32: Multipoint Parallel Simultaneous Partitioning Ball Rotor
33: Multipoint Parallel Simultaneous Ball Valve Drive Unit (Hydraulic Motor)
34: Power transmission device (chain)
35-1, 35-2, 35-3: Mortar Grout Multipoint Parallel Simultaneous Dispensing Device
36-1, 36-2, 36-3: Mortar Grout Supply System Switching Section
37-1, 37-2, 37-3: Mortar grout supply system switching lever
38-1-1, 38-1-2, 38-2-1, 38-2-2, 38-3-1, 38-3-2: Mortar grout Multipoint simultaneous distribution (1 row, 2 columns, 3 Heat) supply line to the first supply line and the second supply line
39-1-1, 39-1-2, 39-2-1, 39-2-2, 39-3-1, 39-3-2: Mortar grout Multipoint simultaneous distribution (1 row, 2 columns, 3 Heat) Mortar grout per feed system Feed branch pipe
40; Injection system hydraulic regulator
41-1, 41-2, 41-3, 41-4, 41-5, 41-6: Injection pipe constant drawing device control lever (up / down /
42-1, 42-2, 42-3, 42-4, 42-5, 42-6: Injection pipe uniform drawing device Drawing speed adjustment level (range of 6 to 36 cm / min)
43-1, 43-2, 43-3, 43-4, 43-5, and 43-6: erection hydraulic pressure supply line
44: Eruption of the injection tube constant velocity
45; Multipoint Parallel Simultaneous Volleyball Ball Drive Hydraulic Line
46; Measuring signal transmission cable
47; Mortar grout recirculation duct
48; Multi-point Parallel Simultaneous Volleyball Club Drive Control lever (Rotation / Stop)
49; Multi-point Parallel Simultaneous Volleyball Driving Device Rotation Speed Adjustment Level
50: Injection tube
51: tip injection device appearance
52: mortar grout extrusion port
53: Perforated bit
54: Inner end of infeed device
55: tip injection device tip closure
60; Continuous mixer for liquid grout
61; Liquid grout primary mixing tank
62; Liquid grout 1st mixing tank stirring blade
63; Liquid grout Secondary high-speed stirring tank
64; Liquid grout Secondary high speed stirring tank stirring blade
65; Liquid grout reservoir
66; Rotating shaft
67; Electric motor
68; Power transmission (reduction gear)
69; Float switch (level detection)
70; Cement hopper
71; Continuous cement auger device
D1: Direction of rod rotation during drilling
G20; Mortar grout indentation into a multi-point parallel dispensing feeder
G38-1-1: Mortar grout multi-parallel distribution (one row) Extrusion to first supply line by branch line by supply system switching
G38-1-2: Mortar grout multi-parallel distribution (one row) Extrusion to the second supply line by branch line by switching the supply system
G50: Extrusion in mortar grout soil
Lg1; Supply of liquid grout
W1: Drilled water supply
c.agg; Coarse aggregate
f.agg; Fine aggregate
m.agg; Mixed aggregate
cem ; cement
adm. ; Other Admixtures
wat. ; Number of ingredients (water)
Liq.g; Liquid grout (cement milk grout)
Claims (8)
The mixed aggregate (m.agg) is continuously weighed into the mixing plant hopper 11 in a state where the coarse aggregate (c.agg) and the fine aggregate (f.agg) which have been subjected to the screening process are mixed in volume by a predetermined mixing ratio,
The liquid grout (Liq.g) which is a liquid compounding material is a liquid grout continuous compound feeder (60) in which cement, compounding water (wat) and other admixture (adm) are continuously fed in a predetermined amount by a water- ) In the liquid-phase grout primary mixing tank (61); Followed by high-speed rotation secondary agitation in a communicating liquid-phase grout secondary high-speed agitator 63; Then into a communicating liquid grout reservoir 65; By continuous metering into the mixing plant hopper 11 by pumping,
Mixing Plant Continuous Mixing The determination of the kneading conditions of the soil cement mortar grout discharged from the discharge auger (12) to the extruding pump hopper (13) and confirmation of the kneading condition of the grouting material are performed by controlling the amount of liquid grout (Liq.g) Wherein a uniformity and continuity of the quality of the sole cement mortar grout are maintained. The mortar grouting compaction grouting system using the continuous mixing production and supply method of the soil cement mortar grout.
The slump value of the soil cement mortar grout is in the range of 3 cm to 10 cm and the strength quality of the soil cement mortar grout is such that the mixing ratio of the coarse aggregate (c.agg): fine aggregate (f.agg) (50 kgf / cm 2 to 200 kgf / cm 2) based on the uniaxial 28-day compressive strength by adjusting the water-cement ratio of the molten grout compacting grouting system (Liq.g).
A liquid grout primary mixing chamber 61 in which a cement mixture, a water mixture, and other admixtures adm are continuously supplied in an amount determined by a predetermined water-cement ratio; A liquid grout primary mixing tank agitating blade 62 for initially mixing and stirring the charged material at a low speed; Two liquid-phase grout secondary high-speed stirring vessels 63 communicating with the liquid-phase grout primary mixing vessel 61 by a plurality of conduits adjacent to each other; A liquid-grout secondary high-speed agitating tank stirring vane (64) for refluxing by a high-speed rotation so as to dense the introduced liquid grout and improve the viscosity; Two sets of liquid grout high-speed agitating tank 63 and a set of liquid grout storage tank 65 adjacent to each other and introducing liquid grout (Liq.g) produced by communicating with a plurality of channels; The system detects the state of the water level flowing into the liquid grout storage tank 65 and signals the operation and stoppage of the continuous supply system of the cement mixture, the water mixture and the admixture adm A float switch 69 provided inside the liquid grout storage tank 65 so as to be able to deliver the liquid; An electric motor 67 and a power transmission device 68 for supplying and delivering power for rotating each of the stirring blades at a low speed or a high speed; A mortar grout compaction grouting system adapted to maintain homogeneity and continuity of liquid grout (Liq.g) formulation quality for the production of soil cement mortar grout using a combined liquid grout continuous compound feeder (60).
Mixing mortar grout extruded from a mixing plant continuous mixing discharge auger 12 to an extrusion pump hopper 13 and discharged therefrom is supplied to a mortar grout extrusion and feeding apparatus 20 through a mortar grove feeding pipe 15 A pump 40;
Point parallel concurrent distribution unit 20 and pressurized into the multi-point parallel simultaneous distribution port 30 through the mortar grout branch pressure inlet ports 22-1, 22-2 and 22-3, The multi-grout multi-point parallel simultaneous distributing device branching push-out ports 35-1, 35-2, and 35-3 are sequentially and periodically opened and closed at predetermined intervals by receiving power from the distribution port driving device 33, A parallel simultaneous distribution valve rotating body (32);
The mallet grout multi-point parallel simultaneous distributing device which sequentially opens and closes the multi-point parallel simultaneous distribution port rotating body 32 at predetermined time intervals is provided with the mallet grout fed through the branching outlets 35-1, 35-2 and 35-3, A mallet grout supply system switching unit 36-37 for supplying molten grout supply system changeover levers 37-1, 37-2, and 37-3 for controlling the press-in directions of the first supply pipe, the second supply pipe, 1, 36-2, 36-3);
Mortar Grout Feeding system Mortar grout for receiving and guiding mortar grout according to the direction controlled by the changeover levers (37-1, 37-2, 37-3) Multi point parallel distribution (1 row, 2 row, 3 row) Supply system A first supply pipe line and a second supply pipe line 38-1-1, 38-1-2, 38-2-1, 38-2-2, 38-3-1, and 38-3-2;
Mortal grout Multistage simultaneous distribution (1 column, 2 column, 3 column) The first supply pipe and the second supply pipe by the supply system (38-1-1, 38-1-2, 38-2-1, 38-2 2, 38-3-1, 38-3-2) and the mortar grout supply system of the injection pipe (50) penetrated into the ground at each injection site, (39-1, 39-1-2, 39-2-1, 39-2-2, 39-3-1, 39-3-2) of the mortar grout per feed system, By means of a mortar grout multipoint parallel simultaneous distribution system,
The mortar grout pumped from one mortar grout extrusion pump 14 is fed to three mortar grout multipurpose simultaneous distribution device branching extruders 35-1, 35-2, and 35-3 in the multipoint parallel distribution device 20, The equilibrium three point parallel distribution occurs,
Three mortar grout multipoint parallel simultaneous distribution devices Mortar grout supply system switching levers (37-1, 37-2, 37-3) provided for respective branch outlets (35-1, 35-2, 35-3) Mortar Grout Parallel Distribution of a total of 6 lines by the grout supply system switching ports (36-1, 36-2, 36-3) Simultaneous distribution (1 row, 2 columns, 3 columns) Mortar grout branch feed pressure line -1-1, 39-1-2, 39-2-1, 39-2-2, 39-3-1, and 39-3-2), a total of six injection holes and a system for feeding the mortar grout In the connected state,
Three mortar grout multipoint parallel simultaneous distributing devices The mortar grout supply system switching ports 36-1, 36-2 and 36-3 provided for each of the branching extruding ports 35-1, 35-2 and 35-3 are connected to the mortar grout 6 lines of mortar grout Multipoint parallel distribution (1 row, 2 columns, 3 columns) in the press-in direction controlled by the supply system switching lever (37-1, 37-2, 37-3) Mortar grout per branch Simultaneous distribution of multi-grout multi-point parallel lines of three lines among the pressure feeding lines (39-1-1, 39-1-2, 39-2-1, 39-2-2, 39-3-1, 39-3-2) 1 row, 2 columns, 3 columns) Mortar grout per feed system Multi-point parallel simultaneous distribution injection of mortar grout is carried out to the branch feed-
The mortar grout feeding system (37-1, 37-2, 37-3) is controlled by the mortar grout feeding system switching lever (37-1, 37-2, 37-3) for each row of the simultaneous distribution of martal grout multi- You can switch,
Mortar Grout Multipoint Simultaneous Dispatch (1 column, 2 column, 3 column) in case of simultaneous dispense injection in parallel with 3 injection holes. Mortar grout branch pressure transfer line (39-1-1, 39-1- 2, 39-2-1, 39-2-2, 39-3-1, and 39-3-2) is connected to the mortar grout return line 47 to form an extruding pump hopper 13 ) And recirculated,
The mortar grout compacting grouting system according to claim 1, characterized in that the injection grout can be injected at three points in a state in which the injection system of six injection holes is provided.
The rotating speed of the multi-point parallel simultaneous distribution port rotating body 32, which sequentially and periodically opens and closes the branching push-out ports 35-1, 35-2, and 35-3, By the rotation speed of the multi-point parallel simultaneous distribution ball driving device 33 controlled by the volleyball driving device control lever 48 and the multi-point parallel simultaneous distribution channel driving device rotation speed adjustment level 49, three mortar grout multipoint parallel distribution devices The time at which the device branching outlets 35-1, 35-2, and 35-3 are opened is rotated at a speed that can equally hold the one stroke time of the extrusion pump 14 for three or six equal periods. To the grouting system.
Mortar Grout Multipoint Parallel Simultaneous Distribution Apparatus In the process of sequentially opening and closing the branching extruding ports 35-1, 35-2, and 35-3 at a predetermined time interval, the range is divided into a mortar grout multipoint parallel distribution unit branching extruder 35-1 , 35-2, and 35-3 are opened at the same time, the range of the widths of the three multi-point parallel distribution port rotating bodies 32 mounted with the angular deviation of 120 degrees to the multi-point parallel simultaneous distribution port rotary shaft 31 Of the grout grouting system.
The front end injection device includes a front end injection device outer tube 51 coupled to a lower end of an injection pipe penetrating into the ground by screwing and having six mortar grout extrusion ports 52 on the outer circumferential surface thereof; (50), which is inserted into the inside of the outer end injecting apparatus (51) and prevents the outflow of the perforated water through the mortar grout extrusion port (52) during the perforating operation and induces perforated water to be concentrated out through the perforated bit (53) An apparatus inner pipe 54; And a drilled bit (53) threadedly connected to the lower end of the tip injection device outer tube (51)
The mortar grout extruding port 52 provided on the outer circumferential surface of the outer tube 51 of the distal end injecting apparatus in consideration of the depth at which the inner tube of the distal end injecting apparatus is pushed downward during the injection, Penetrating the injection pipe (50) and the end injection device into the ground by a piercing operation so that the injection pipe (50) reaches a predetermined depth;
The mortar grout extruding port 52 provided in the outer end injecting apparatus outer tube 51 connected to the injection pipe 50 is positioned at a predetermined depth and then the front end injecting device is closed Inserting the sphere 54 into the injection tube and connecting the top of the injection tube 50 to the mortar grout supply system;
The tip end closing device 54 inserted before the injection of the mortar grout is pushed downward by the mortar grout pressurized along the empty space of the injection pipe 50 in the empty state, (54);
The leading end closing device 54 and the leading end injecting device inner pipe 54 are pushed down by a perforated hole in the middle of the week where the mortar grout is further inserted at an excessive depth by the pressurization of the mortar grout into the inner space of the injection pipe 50, A total of six mortar grout extruding openings 52 provided on the outer circumferential surface of the injection apparatus outer tube 51 are sequentially communicated with the inner space of the leading end injecting apparatus which has been pressurized by the mortar grout and the molten grout can be press- To initiate underground pressurization of the mortar grout;
A total of six mortar grout extruding openings 52 are formed in the direction in which the circumferential surfaces of the mortar grout columnar reforming bodies to be formed are divided equally by 60 degrees so that the underground pressurization of the mortar grout is performed by the injection tube 50 And performing dispersion induction injection uniformly in the horizontal direction at a central axis in a direction perpendicular to the center axis of the grout grouting system.
The amount of mortar grout required per unit length of the column reformer, the amount of mortar grout per one stroke of the extrusion pump 14, and the multi-point parallel distribution supply unit Calculating a constant velocity draw velocity of the injection tube (50) according to the correlation between the extrusion amount per branch line and the one stroke time of the extrusion pump (14), which are supplied in parallel through the nozzle (20);
42-2, 42-3, 42-4, 42-5, and 42-6 for each of the parallel simultaneous distribution branch lines in the injection system hydraulic pressure regulator 40, );
6 lines of mortar grout parallel distribution (1 column, 2 column, 3 column) Parallel distribution of the mortar grout in the first supply line and the second supply line of the supply system was carried out in parallel, The operation of the ejector apparatus adjusting levers 41-1, 41-2, 41-3, 41-4, 41-5, and 41-6 and the operation of the eraser 44, Initiating a constant velocity draw injection;
When the molten grout is to be switched to the first supply pipe line or the second supply pipe line by three systematic lines in which the simultaneous distribution and feeding is performed in parallel, the mortar grout supply system switching lever (37-1, 37-2, 37-3) The injection system line of the mortar grout and the injection pipe (not shown) of the mortar grout by the upward / downward / downward operation of the pipe constant velocity pullout device adjustment levers 41-1, 41-2, 41-3, 41-4, 41-5, 50) at a uniform velocity, and maintaining the uniformly divided injection work by uniform velocity drawing of the grout grouting system (50).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140093863A KR20160012437A (en) | 2014-07-24 | 2014-07-24 | mortar grout compaction grouting system |
| KR1020140100415A KR20160013783A (en) | 2014-07-24 | 2014-08-05 | mortar grout compaction grouting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140093863A KR20160012437A (en) | 2014-07-24 | 2014-07-24 | mortar grout compaction grouting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20160012437A true KR20160012437A (en) | 2016-02-03 |
Family
ID=55353582
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140093863A KR20160012437A (en) | 2014-07-24 | 2014-07-24 | mortar grout compaction grouting system |
| KR1020140100415A KR20160013783A (en) | 2014-07-24 | 2014-08-05 | mortar grout compaction grouting system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140100415A KR20160013783A (en) | 2014-07-24 | 2014-08-05 | mortar grout compaction grouting system |
Country Status (1)
| Country | Link |
|---|---|
| KR (2) | KR20160012437A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612079A (en) * | 2018-04-12 | 2018-10-02 | 河海大学 | One kind is for microorganism cured fine quantitatively micro-spray system and its application method |
| CN109910170A (en) * | 2019-04-19 | 2019-06-21 | 中国三峡建设管理有限公司 | Intelligent small size dynamic method and system with slurry |
| CN113622952A (en) * | 2021-08-06 | 2021-11-09 | 中国煤炭地质总局水文地质局 | Comprehensive treatment method for water damage of mountain green coal in structurally complex area |
| US20220307216A1 (en) * | 2020-10-23 | 2022-09-29 | Economy and Technology Research Institute, Gansu Electric Power Corporation | Special-grouting-based grouting system with adjustable moving cavity pressure and grouting method thereof |
| CN109910170B (en) * | 2019-04-19 | 2024-05-14 | 中国三峡建设管理有限公司 | Intelligent small-volume dynamic slurry preparation method and system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180086924A (en) | 2017-01-24 | 2018-08-01 | (주)진양비지엠텍 | Method for injecting grout in a apg system |
| KR102262552B1 (en) | 2020-07-27 | 2021-06-08 | (주)힐엔지니어링 | Construction method of c.g.s using the improved anchor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100209247B1 (en) | 1995-03-31 | 1999-07-15 | 정재무 | Construction method of foundation pile in the underground poor subsoil |
| KR100941916B1 (en) | 2009-04-06 | 2010-02-11 | 문동춘 | Multi-point restoration grouting system |
| KR101081343B1 (en) | 2008-09-10 | 2011-11-09 | 덴버코리아이엔씨주식회사 | Compaction grouting system |
| KR101213448B1 (en) | 2012-05-14 | 2012-12-18 | 강종호 | the quantitative evenly multi-distributed supply in the process of pumping low fluidity viscoplastic mortar grout |
| KR101277106B1 (en) | 2013-01-21 | 2013-06-20 | 강종호 | The quantitative evenly multi-distributed supply in the process of pumping low fluidity viscoplastic mortar grout |
| KR101337371B1 (en) | 2013-07-03 | 2013-12-05 | (주)재우그라운드테크 | Viscoplastic mortar grout evenly split supply method and device from the large capacity extrusion pump |
-
2014
- 2014-07-24 KR KR1020140093863A patent/KR20160012437A/en unknown
- 2014-08-05 KR KR1020140100415A patent/KR20160013783A/en not_active Application Discontinuation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100209247B1 (en) | 1995-03-31 | 1999-07-15 | 정재무 | Construction method of foundation pile in the underground poor subsoil |
| KR101081343B1 (en) | 2008-09-10 | 2011-11-09 | 덴버코리아이엔씨주식회사 | Compaction grouting system |
| KR100941916B1 (en) | 2009-04-06 | 2010-02-11 | 문동춘 | Multi-point restoration grouting system |
| KR101213448B1 (en) | 2012-05-14 | 2012-12-18 | 강종호 | the quantitative evenly multi-distributed supply in the process of pumping low fluidity viscoplastic mortar grout |
| KR101277106B1 (en) | 2013-01-21 | 2013-06-20 | 강종호 | The quantitative evenly multi-distributed supply in the process of pumping low fluidity viscoplastic mortar grout |
| KR101337371B1 (en) | 2013-07-03 | 2013-12-05 | (주)재우그라운드테크 | Viscoplastic mortar grout evenly split supply method and device from the large capacity extrusion pump |
Non-Patent Citations (1)
| Title |
|---|
| 없음 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612079A (en) * | 2018-04-12 | 2018-10-02 | 河海大学 | One kind is for microorganism cured fine quantitatively micro-spray system and its application method |
| CN109910170A (en) * | 2019-04-19 | 2019-06-21 | 中国三峡建设管理有限公司 | Intelligent small size dynamic method and system with slurry |
| CN109910170B (en) * | 2019-04-19 | 2024-05-14 | 中国三峡建设管理有限公司 | Intelligent small-volume dynamic slurry preparation method and system |
| US20220307216A1 (en) * | 2020-10-23 | 2022-09-29 | Economy and Technology Research Institute, Gansu Electric Power Corporation | Special-grouting-based grouting system with adjustable moving cavity pressure and grouting method thereof |
| CN113622952A (en) * | 2021-08-06 | 2021-11-09 | 中国煤炭地质总局水文地质局 | Comprehensive treatment method for water damage of mountain green coal in structurally complex area |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160013783A (en) | 2016-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20160012437A (en) | mortar grout compaction grouting system | |
| US5419632A (en) | Method and apparatus for continuous mixing and injection of foamed cement grout | |
| CN107755421A (en) | A kind of contaminated site original position is rapidly injected repair system | |
| EP3250353A1 (en) | Grout preparation and administration | |
| US3915438A (en) | Stream impingement mix head | |
| KR102234214B1 (en) | Fast permeating method and system for grouting of weak ground | |
| CN108189234B (en) | Grouting filling rapid pulping device and method | |
| CN102837364B (en) | Group pouring device for foaming concrete slurry and working method thereof | |
| KR101550267B1 (en) | mortar grout compaction grouting system and it's construction method | |
| CN116607971A (en) | Anchor grouting integrated device for classified gradient grouting and use method thereof | |
| EP1771627B1 (en) | Process to prepare in-situ pilings in clay soil | |
| CN207576399U (en) | A kind of biphasic reaction kettle for producing pitch | |
| US7192220B2 (en) | Apparatus and method to prepare in-situ pilings with per-selected physical properties | |
| CN202517594U (en) | Stirring grouting equipment | |
| KR102049822B1 (en) | Rapid hardening and low fluidity mortar grouting system | |
| KR101872454B1 (en) | Automatic powder suppling plant unificated a body with weighing, mixing and conveying processes to supply powder type materials for soft ground improvement to a stirring axis of mixing treatment equipment in 1.5 shot mode | |
| KR20180013041A (en) | Paste injection, grouting, jetting method | |
| CN217811045U (en) | Double-barrelled slip casting device | |
| CN215661086U (en) | Cement stabilized soil mixing station auxiliary water supply system | |
| RU104234U1 (en) | INSTALLATION FOR CEMENTING WELLS | |
| CN203594034U (en) | Pile-making vibrofluctuation device for vibrofluctuation powder-sprayed gravel pile | |
| CN216194663U (en) | Grouting device suitable for double-liquid grouting | |
| CN113833506B (en) | Underground engineering surrounding rock refined intelligent grouting device | |
| CA2142812C (en) | Method and apparatus for continuous mixing and injection of foamed cement grout | |
| KR20180013052A (en) | Chemical injection, grouting, jetting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| N231 | Notification of change of applicant |