CN113513014A - Anchor cable treatment and stratum reinforcement integrated method adopting triaxial mixing pile machine - Google Patents
Anchor cable treatment and stratum reinforcement integrated method adopting triaxial mixing pile machine Download PDFInfo
- Publication number
- CN113513014A CN113513014A CN202110453614.5A CN202110453614A CN113513014A CN 113513014 A CN113513014 A CN 113513014A CN 202110453614 A CN202110453614 A CN 202110453614A CN 113513014 A CN113513014 A CN 113513014A
- Authority
- CN
- China
- Prior art keywords
- anchor cable
- mixing pile
- pile machine
- triaxial mixing
- anchor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000002787 reinforcement Effects 0.000 title claims abstract description 29
- 238000010276 construction Methods 0.000 claims abstract description 37
- 230000008569 process Effects 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 239000002689 soil Substances 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 21
- 239000004568 cement Substances 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 238000007596 consolidation process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/08—Removing obstacles
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the field of building construction, and provides an anchor cable treatment and stratum reinforcement integrated method adopting a triaxial mixing pile machine, wherein the anchor cable is directly treated by the triaxial mixing pile machine in the process of wall reinforcement of a diaphragm wall, the anchor cable is twisted off by rotating a drill bit and a drill rod, and the anchor cable is lifted out of the ground and cut off after being twisted off; after the anchor cables on the drill bit and the drill rod are removed, drilling, stirring and reinforcing are continued until all the anchor cables are removed; and then, continuing to reinforce to the designed depth to finish the reinforcement of the stratum. The invention has the advantages that: the construction method has the advantages that the construction is creatively carried out synchronously with the reinforcement of the triaxial mixing pile and the treatment of the anchor cable, the effect of reinforcing the soil layer is achieved while the anchor cable is removed, and the construction safety and quality can be guaranteed under the conditions of reducing the cost and shortening the construction period; compared with the traditional anchor cable treatment method such as manual excavation, steel sleeve hole forming, rotary drilling, twisting and breaking and the like, the anchor cable treatment method has the advantages of high construction safety, high construction progress, low construction cost and the like.
Description
Technical Field
The invention relates to the field of building construction, in particular to an anchor cable treatment and stratum reinforcement integrated method adopting a triaxial mixing pile machine.
Background
When the urban subway is planned relatively late, the construction environment for planning the subway becomes more complex, and the existing buildings around the subway are dense. Because most of foundation pits of the original buildings adopt a pile anchor or soil nailing wall supporting mode, the situation that anchor cables invade subway stations and interval tunnels is inevitable in the subway construction process, and inconvenience is brought to subway construction. Therefore, how to safely and economically solve the problem that the anchor cable of the foundation pit of the building along the line invades the subway line becomes a difficult problem which needs to be solved urgently for subway safety construction and construction period guarantee, and the research on the existing building anchor cable treatment technology in the subway construction becomes urgent need.
So far, the anchor cable processing methods mainly include two methods, namely 'rotary drilling and reaming' and 'steel sleeve hole forming and backfilling'. The device is hinged by using rotary drilling, so that the disturbance to a soil body is large, the hole is easy to collapse, and the safety risk is high; the time for forming the hole and backfilling of the steel sleeve is long, and the pressure in the construction period is tight.
Therefore, under the conditions of limited construction sites and complex stratum geological conditions, an anchor cable treatment method with high construction safety and fast construction progress is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problem of providing an anchor cable treatment and stratum reinforcement integrated method adopting a triaxial mixing pile machine, initiatively synchronizing the triaxial mixing pile reinforcement and the anchor cable treatment, achieving the effect of reinforcing a soil layer while removing the anchor cable, and having safe, rapid and efficient construction process.
The invention adopts the following technical scheme to solve the technical problems:
a method for integrating anchor cable treatment and stratum reinforcement by using a triaxial mixing pile machine is characterized in that the anchor cable is directly treated by using the triaxial mixing pile machine in the process of wall reinforcement of a diaphragm wall, the anchor cable is twisted off by rotating a drill bit and a drill rod, and the anchor cable is lifted out of the ground and cut off after being twisted off; after the anchor cables on the drill bit and the drill rod are removed, drilling, stirring and reinforcing are continued until all the anchor cables are removed; and then, continuing to reinforce to the designed depth to finish the reinforcement of the stratum.
As one of the preferable modes of the invention, the pile shape of the triaxial mixing pile machine adopts phi 850 and the distance is 600 mm; during construction, an internal and external side meshing extrusion type construction method is adopted, piles are lapped by 250mm, dead angles are not left, and the anchor cables in a target range are completely removed.
As one of the preferable modes of the invention, a drill bit of the triaxial mixing pile machine adopts a cone-tooth type drill bit, and a drill rod adopts a blade drill rod; the structure shape is more beneficial to winding the anchor cable and twisting off the anchor cable.
As one of the preferable modes of the invention, in the process of removing the twisted-off anchor cable, whether the anchor cable is twisted-off or not is judged by specifically displaying the reading change through an ammeter of the triaxial mixing pile machine; and after the anchor cable is confirmed to be twisted off, lifting the drill bit and the drill rod wound with the anchor cable out of the ground and cutting off the drill bit and the drill rod.
As one of the preferable modes of the invention, during normal operation, the ammeter of the triaxial mixing pile machine shows a reading value of 200A; after the anchor cable is hinged, the ammeter of the triaxial mixing pile machine displays a reading value of 300-400A; therefore, in the anchor cable reaming process, if the current rapidly returns to 200A from one value of 300-400A, the anchor cable is reamed.
As one of the preferable modes of the invention, in the construction process of the triaxial mixing pile machine, the stratum is reinforced by injecting cement grout; wherein, the requirements for stratum reinforcement are as follows: the water cement ratio of the cement paste is 1:1.5, the cement mixing amount is not less than 20%, and the verticality deviation of a drill rod of the triaxial mixing pile machine is not more than 1.5%; the requirements for the guniting process are as follows: the sinking and lifting speeds are strictly controlled to be within 1m/min, the lifting speed is controlled to be within 0.5m/min, and constant sinking and constant lifting are kept. By controlling the stratum consolidation parameters, the disturbance of the anchor cable treatment on the stratum can be reduced.
As one of the preferable modes of the invention, before the anchor cable processing step, the method also comprises a monitoring point laying step; the monitoring points are arranged at peripheral buildings and pipelines, and the settlement conditions of the corresponding buildings and pipelines are known by monitoring the vertical displacement change of the monitoring points so as to ensure that the anchor cable treatment has no influence on the peripheral buildings and the pipelines.
As one of the preferable modes of the invention, the anchor cable treatment and stratum reinforcement integrated method adopting the triaxial mixing pile machine specifically comprises the following steps:
(1) determining the distribution condition and the number of the anchor cables according to a drawing; laying settlement monitoring points at peripheral buildings and pipelines;
(2) selecting a drill bit, a drill rod and a triaxial mixing pile machine through analyzing the properties of the anchor cable material;
(3) while the groove wall of the underground continuous wall is reinforced, the ammeter of the triaxial mixing pile machine displays the reading change, the position where the drill bit drills to the anchor cable is determined, and the change condition of the current is recorded; further analyzing the current allowable value of the drill for cutting off the anchor cable and locking the anchor cable as the basis for cutting off the anchor cable; then, formally processing the anchor cable; the anchor cable is twisted off by the rotation of the drill bit and the drill rod, and simultaneously, cement slurry is sprayed while the triaxial mixing pile machine drills down to fill disturbed gaps in the stratum, so that the risk of collapse caused by soil disturbance over the large wall of the tank is avoided; after the anchor cable is twisted off, the drill bit and the drill rod wound with the anchor cable are lifted out of the ground through a three-axis mixing pile machine, and the anchor cable is manually removed from the ground;
(4) and (4) continuing drilling, stirring and reinforcing the triaxial mixing pile machine until all the anchor cables are removed, and then reinforcing the triaxial mixing pile machine to the designed depth.
Compared with the prior art, the invention has the advantages that:
(1) the anchor cable is twisted off and pulled out by using a triaxial stirring technology, and stratum reinforcement is carried out at the same time; the method can thoroughly remove the underground anchor cable, effectively control the stratum disturbance and the settlement of the building and the pipeline, and has high safety; meanwhile, as the reinforcement and the anchor cable treatment are synchronous, the soil layer is reinforced while the anchor cable is removed, the operation efficiency is greatly improved, and the requirement of construction progress is further met;
(2) the method is simple and easy to implement, and the anchor cable treatment cost is reduced by 40%.
Drawings
Fig. 1 is a process flow diagram of an anchor cable treatment and formation consolidation integrated method using a triaxial mixing pile machine in embodiment 1;
FIG. 2 is a schematic view showing the construction sequence of a mixing pile in example 1;
fig. 3 is a schematic diagram of a variation curve of a vertical displacement monitoring point of the building in the embodiment 1.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
As shown in fig. 1, the anchor cable treatment and stratum reinforcement integrated method using the triaxial mixing pile machine of the embodiment includes the following steps:
(1) determining the distribution condition and the number of the anchor cables by a drawing, and arranging pile positions on two sides of the underground diaphragm wall according to a design drawing; specifically, the pile position of each pile is determined by a theodolite or a total station on site and marked, and the error of each pile position is +/-5 CM.
(2) And selecting a proper triaxial mixing pile machine, wherein a drill bit is a tapered-tooth type drill bit, and a drill rod is a blade drill rod.
(3) The pile driver reaches the operation position, an experienced operator is arranged to operate the front platform drilling machine, the vertical angle between the drill rod and the ground is checked and adjusted by a hanging hammer and a horizontal ruler, the verticality is not more than 1.5 percent, and length marks in meters are drawn on the pile driver frame so as to conveniently mark the position of the drill rod, which is buried into the soil, of the anchor cable and record the drilling speed.
(4) Determining the mixing proportion according to the pile forming process test, and stirring cement slurry; and before grouting, pouring the cement slurry into a slurry storage barrel, wherein the retention time of the prepared cement slurry is not more than 2 hours.
(5) Starting a motor of the shotcrete machine, loosening a steel wire rope of a crane or a winch, enabling the pile machine to carry out guniting, soil cutting and sinking along the guide frame from top to bottom, and observing the display reading of an ammeter of the triaxial mixing pile machine. If the current is suddenly changed, namely the anchor cable is sunk to the anchor cable position, the position continues to rotate and stir until the current returns to normal, and the anchor cable is twisted off and wound on a drill bit and a drill rod. After the anchor cable is confirmed to be twisted off, the drill bit and the drill rod wound with the anchor cable are lifted out of the ground, and the anchor cable is manually removed.
(6) And (4) continuing drilling, stirring and reinforcing the pile machine until the anchor cable is completely removed, and then reinforcing the pile machine to the designed depth.
(7) And (4) moving the pile driver, continuously constructing a lower pile until the anchor cables on the two sides of the diaphragm wall are completely removed and the reinforcement is finished.
Specifically, in this embodiment, during normal operation, the current value of the three-axis mixing pile machine is 200A; after the anchor cable is hinged, the current value of the triaxial mixing pile machine floats between 300 and 400A; therefore, in the anchor cable reaming process, if the current rapidly returns to 200A from one value of 300-400A, the anchor cable is reamed.
Specifically, in this embodiment, in order to ensure that all anchor cables on both sides of the underground diaphragm wall are completely removed, a triaxial mixing pile machine with a pile diameter and a pile spacing of Φ 850@600mm is selected, and the construction sequence of piles on both sides of the underground diaphragm wall is performed by an inside-outside occlusion extrusion type construction method, and the piles are overlapped by 250mm, as shown in fig. 2. In fig. 2, a construction sequence 1, a construction sequence 2, a construction sequence 3, a construction sequence 4, and a construction sequence 5 respectively represent a set of constructions of the triaxial mixing pile machine, and each set of constructions is finally formed into three sets of cement piles.
In addition, in the aspect of quality control of the embodiment, stratum consolidation parameters need to be strictly controlled so as to ensure that the settlement value of the surrounding building structure after the anchor cable is cut off is controlled within a safe allowable range, and monitoring measurement is enhanced to analyze monitoring data. Wherein, the requirements for the cement slurry are as follows: the cement mixing amount is not less than 20 percent (538.2kg/m), the water-cement ratio is 1:1.5 (water 1000 kg: cement 667kg), and the verticality deviation is not more than 1.5 percent; the requirements for the guniting process are as follows: strictly controlling the sinking and lifting speeds to control the sinking speed within the range of 1m/min and the lifting speed within the range of 0.5m/min, and keeping constant-speed sinking and constant-speed lifting; meanwhile, the drilling speed of the drill rod is kept at 56r/min, and the grouting pressure is kept at 0.6 MPa. By verification, the embodiment can reduce the disturbance of the anchor cable treatment on the stratum by controlling the stratum consolidation parameters.
To the quality inspection aspect, the cell wall reinforcement effect of this embodiment anchor rope processing section, the condition of loosing core is better on the spot, and the quality of loosing core is comparatively complete, and compressive strength accords with the design requirement. Meanwhile, monitoring points (numbers JGC1-1, JGC1-2, JGC1-3 … …, JGC1-19, D1, D2 and D3 … … D12) are arranged at positions of peripheral buildings, gas pipelines, water supply pipelines, information pipelines, rainwater pipelines, sewage pipelines and the like, and the settlement deformation conditions of the corresponding buildings and pipelines can be known by monitoring the vertical displacement changes of the monitoring points. The actual monitoring result is shown in figure 3, and according to the monitoring, the building settlement monitoring and the pipeline settlement monitoring are both abnormal, the accumulated maximum settlement is D6(-4.46mm), and the anchor cable pulling treatment has no influence on the monitoring.
The embodiment has the advantages that: the triaxial stirring method is used for removing the existing underground anchor cable, the underground anchor cable is treated, and meanwhile, the construction of reinforcing the groove wall of the enclosure structure is carried out, so that the construction efficiency is improved; the method is simple and easy to implement, and the anchor cable treatment cost is reduced by 40%.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A method for integrating anchor cable treatment and stratum reinforcement by using a triaxial mixing pile machine is characterized in that the anchor cable is directly treated by using the triaxial mixing pile machine in the process of wall reinforcement of a diaphragm wall, the anchor cable is twisted off by rotating a drill bit and a drill rod, and the anchor cable is lifted out of the ground and cut off after being twisted off; after the anchor cables on the drill bit and the drill rod are removed, drilling, stirring and reinforcing are continued until all the anchor cables are removed; and then, continuing to reinforce to the designed depth to finish the reinforcement of the stratum.
2. The method of claim 1, wherein the triaxial mixing pile machine is of a pile type of phi 850 with a spacing of 600 mm; during construction, an internal and external side meshing extrusion type construction method is adopted, piles are lapped by 250mm, and the anchor cables in a target range are completely removed.
3. The method of claim 1, wherein the drill bit of the triaxial mixing pile machine is a tapered-tooth drill bit, and the drill rod is a blade drill rod.
4. The anchor cable treatment and stratum reinforcement integrated method adopting the triaxial mixing pile machine according to claim 1, wherein in the anchor cable twist-off clearing process, whether the anchor cable is twisted off is judged specifically through reading change displayed by an ammeter of the triaxial mixing pile machine; and after the anchor cable is confirmed to be twisted off, lifting the drill bit and the drill rod wound with the anchor cable out of the ground and cutting off the drill bit and the drill rod.
5. The anchor cable treatment and stratum reinforcement integrated method adopting the triaxial mixing pile machine according to claim 4, wherein in normal operation, an ammeter of the triaxial mixing pile machine shows a reading value of 200A; after the anchor cable is hinged, the ammeter of the triaxial mixing pile machine displays a reading value of 300-400A; therefore, in the anchor cable reaming process, if the current rapidly returns to 200A from one value of 300-400A, the anchor cable is reamed.
6. The anchor cable treatment and stratum reinforcement integrated method adopting the triaxial mixing pile machine according to claim 1, wherein in the construction process of the triaxial mixing pile machine, stratum reinforcement is performed by injecting cement grout; wherein, the requirements for stratum reinforcement are as follows: the water cement ratio of the cement paste is 1:1.5, the cement mixing amount is not less than 20%, and the verticality deviation of a drill rod of the triaxial mixing pile machine is not more than 1.5%; the requirements for the guniting process are as follows: the sinking and lifting speeds are strictly controlled to be within 1m/min, the lifting speed is controlled to be within 0.5m/min, and constant sinking and constant lifting are kept.
7. The anchor cable treatment and stratum reinforcement integrated method adopting the triaxial mixing pile machine according to claim 1, further comprising a monitoring point laying step before the anchor cable treatment step; the monitoring points are arranged at peripheral buildings and pipelines, and the settlement conditions of the corresponding buildings and pipelines are known by monitoring the vertical displacement change of the monitoring points.
8. The anchor cable treatment and stratum reinforcement integrated method adopting the triaxial mixing pile machine as recited in any one of claims 1 to 7, specifically comprising the steps of:
(1) determining the distribution condition and the number of the anchor cables according to a drawing; laying settlement monitoring points at peripheral buildings and pipelines;
(2) selecting a drill bit, a drill rod and a triaxial mixing pile machine through analyzing the properties of the anchor cable material;
(3) while the groove wall of the underground continuous wall is reinforced, the ammeter of the triaxial mixing pile machine displays the reading change, the position where the drill bit drills to the anchor cable is determined, and the change condition of the current is recorded; further analyzing the current allowable value of the drill for cutting off the anchor cable and locking the anchor cable as the basis for cutting off the anchor cable; then, formally processing the anchor cable; the anchor cable is twisted off by the rotation of the drill bit and the drill rod, and simultaneously, cement slurry is sprayed while the triaxial mixing pile machine drills down to fill disturbed gaps in the stratum, so that the risk of collapse caused by soil disturbance over the large wall of the tank is avoided; after the anchor cable is twisted off, the drill bit and the drill rod wound with the anchor cable are lifted out of the ground through a three-axis mixing pile machine, and the anchor cable is manually removed from the ground;
(4) and (4) continuing drilling, stirring and reinforcing the triaxial mixing pile machine until all the anchor cables are removed, and then reinforcing the triaxial mixing pile machine to the designed depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110453614.5A CN113513014A (en) | 2021-04-26 | 2021-04-26 | Anchor cable treatment and stratum reinforcement integrated method adopting triaxial mixing pile machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110453614.5A CN113513014A (en) | 2021-04-26 | 2021-04-26 | Anchor cable treatment and stratum reinforcement integrated method adopting triaxial mixing pile machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113513014A true CN113513014A (en) | 2021-10-19 |
Family
ID=78063452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110453614.5A Pending CN113513014A (en) | 2021-04-26 | 2021-04-26 | Anchor cable treatment and stratum reinforcement integrated method adopting triaxial mixing pile machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113513014A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461200A (en) * | 2017-09-18 | 2017-12-12 | 中铁四局集团第五工程有限公司 | A kind of construction technology for handling shield machine and passing through anchor cable barrier zone anchor cable |
| CN108612100A (en) * | 2018-04-12 | 2018-10-02 | 佛山轨道交通设计研究院有限公司 | A method of anchor cable is handled using churning driven |
| CN110629756A (en) * | 2018-06-21 | 2019-12-31 | 北京东地岩土工程有限公司 | Anchor cable removing method |
| CN112145210A (en) * | 2020-08-25 | 2020-12-29 | 广州市市政工程设计研究总院有限公司 | Anchor cable group removing method for invading shield or pipe-jacking tunnel section |
-
2021
- 2021-04-26 CN CN202110453614.5A patent/CN113513014A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461200A (en) * | 2017-09-18 | 2017-12-12 | 中铁四局集团第五工程有限公司 | A kind of construction technology for handling shield machine and passing through anchor cable barrier zone anchor cable |
| CN108612100A (en) * | 2018-04-12 | 2018-10-02 | 佛山轨道交通设计研究院有限公司 | A method of anchor cable is handled using churning driven |
| CN110629756A (en) * | 2018-06-21 | 2019-12-31 | 北京东地岩土工程有限公司 | Anchor cable removing method |
| CN112145210A (en) * | 2020-08-25 | 2020-12-29 | 广州市市政工程设计研究总院有限公司 | Anchor cable group removing method for invading shield or pipe-jacking tunnel section |
Non-Patent Citations (1)
| Title |
|---|
| 王起飞: "复杂地质环境下地铁盾构既有锚索处理技术", 《四川建筑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107938656A (en) | Complexity rebuilds base pit engineering pile base construction method | |
| CN104153352A (en) | Karst geology rotary-drilling bored concrete pile hole forming process | |
| CN108643948B (en) | Construction method for shield to penetrate anchor cable area | |
| CN101864765A (en) | Two-way stirring based SMW construction method and tri-axial stirring equipment | |
| CN103266599B (en) | The dry construction method of digging drilling pile of soil skerry ground churning driven | |
| CN108842819A (en) | A kind of urban track traffic cable run method for tunnel construction | |
| CN109736811A (en) | A kind of vertical shaft machinery tunneling construction method | |
| CN103924585A (en) | Novel method for constructing wind power rock-embedded pile | |
| CN106522213A (en) | Rotary jet grouting bar inserting type mini pile construction method | |
| CN112796307A (en) | Square pile construction method of rotary drilling rig | |
| CN110593254A (en) | Construction method of cast-in-situ bored pile in stratum with karst cave in joint zone | |
| CN116289969A (en) | Deep foundation pit support structure secant pile anti-seepage construction method based on sonar detection technology | |
| CN110777775A (en) | Foundation pit structure and construction method thereof | |
| CN210263062U (en) | Anti construction structures that floats of shallow earthing subway tunnel foundation ditch earthwork excavation in pit bottom | |
| CN111156005A (en) | Construction method for tunnel to pass through subway station at close distance | |
| AU2021101943A4 (en) | A construction control method for a subway shield to penetrate through existing buildings | |
| CN113006109B (en) | Construction method of waterproof curtain of foundation pit of highly permeable stratum area | |
| CN110984126B (en) | Construction method for pre-reinforcing and then forming hole of easy-collapse stratum into cast-in-place pile | |
| CN111270665A (en) | Construction method of triaxial mixing pile | |
| CN113513014A (en) | Anchor cable treatment and stratum reinforcement integrated method adopting triaxial mixing pile machine | |
| CN110714459A (en) | Construction method of cast-in-situ bored pile | |
| CN102191770B (en) | Geology improving method for trenchless construction | |
| CN114320360A (en) | TRD and surface deep hole half-section grouting combined advanced waterproof curtain construction method | |
| CN114635450A (en) | Construction method for permanent steel pipe structural column of covered and excavated station | |
| CN107489140A (en) | A kind of method of accurate control CFG stake height of pile top |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211019 |