CN105274994B - Anti-suck sludge proof grouting process and grouting device in deep saturated sand - Google Patents
Anti-suck sludge proof grouting process and grouting device in deep saturated sand Download PDFInfo
- Publication number
- CN105274994B CN105274994B CN201510756244.7A CN201510756244A CN105274994B CN 105274994 B CN105274994 B CN 105274994B CN 201510756244 A CN201510756244 A CN 201510756244A CN 105274994 B CN105274994 B CN 105274994B
- Authority
- CN
- China
- Prior art keywords
- slip casting
- outer tube
- grouting
- core pipe
- slurry outlet
- 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.)
- Active
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
One kind anti-suck sludge proof grouting process and grouting device in deep saturated sand, grouting device includes slip casting outer tube and slip casting core pipe, the slip casting core pipe is inserted in the slip casting outer tube by a threaded sleeve, the periphery of the slip casting outer tube is dug multigroup slurry outlet, the rubber sleeve of multiple covering slurry outlets is provided with slip casting outer tube, its operation of the invention is simple, operation facility, slip casting will be carried out to deep full water thawing layer of sand exactly using surface drilling, can realize optional grouting pressure, and stop slip casting rear slurry will not suck-back enter Grouting Pipe.In addition, also can effectively prevent the heavy slurry of Grouting Pipe ttom of pipe, the slurry outlet in effective slip casting interval or Grouting Pipe is blocked, and clear water cleaning is carried out to Grouting Pipe after slip casting terminates, repeated and utilize injected hole and Grouting Pipe, realize the multiple slip casting of interval to stratum.
Description
Technical field
The present invention relates to the technical field that mine shaft sandy-silt seepage is administered, more particularly to one kind is in deep saturated sand
Anti-suck sludge proof grouting process and grouting device.
Background technology
Mine shaft (vertical or inclined shaft) when deep saturated sand is passed through, in order to improve shaft excavation efficiency and prevent water
Blowout enters the shaft excavation scope of operation, and freezing process is one of more conventional reservoir treating method.Pit shaft is passed through using freezing process
The a range of saturated sand in stratum freezed, flowable water and loose sand are cured as a class Seed harvest,
Then shaft excavation operation is carried out in such Seed harvest, thus the shaft excavation scope of operation can keep a metastable few water
Environment.After completion pit shaft sand section is constructed and enters basement rock, Freezing stratum as rapid can be stopped, saturated sand will gradually thaw.Freeze
Fading away for wall, will link up the hydraulic connection between the saturated sand of pit shaft and frost wall periphery, and pit shaft is by few water frozen environment
It is transferred to full water environment.
Preferable shaft structure is a water proof compression construction highly closed to surrounding formation, typically by multistory reinforced mixed
Solidifying soil is poured and formed, but due to the actual construction technology reason of pit shaft, can be produced more construction gap and be connect in pit shaft total length
Stubble.Further, since construction quality or working-procedure problem, it is also possible to occur weak part on pit shaft.In layer of sand still in freezing shape
During state, thicker frost wall can bear larger water pressure, and pit shaft is enclosed in into a pressure in a balanced way in space.But when jelly
After knot stratum thaws, pit shaft directly bears larger stratum water pressure, and pit shaft connects batch position because sealing is poor, it may occur however that
, there is infiltration, gushing water, the disasters such as sand of bursting in infiltration disaster, and the possible compression damage in the weaker position of pit shaft, there is now multiple ore deposits
Well occurred repeatedly to influence working face operation or flooded well disaster.For above-mentioned disaster, if only in the case of infiltration or gushing water, can
By high intensity draining, while carrying out respective handling to well bore wall in the wellbore, the purpose for administering infiltration or gushing water is can reach.But
If with routed sand in exiting water process, high intensity draining will be formed to large-scale layer of sand and disturbed, and cause layer of sand to liquefy, largely
Blowout enters in pit shaft.Saturated sand around pit shaft pours in pit shaft, has emptied pit shaft surrounding formation, can change the part of pit shaft
Stress, stability and integrality to shaft structure threaten.
Preventing treatment currently for the routed sand disaster of construction freezing method pit shaft water burst is still a technical barrier, works as pit shaft
It has been be submerged that, and sand is gushed at well bore wall multiple position, how successfully by the layer of sand consolidation around pit shaft, prevents layer of sand to well
Cylinder in burst gush be Treatment process key.In using the technology of the solid sand of slip casting, noted in deep saturated sand from surface drilling
During slurry, using conventional grouting device and technique, often under larger hydraulic pressure, slurries can pass back into Grouting Pipe, and band
Enter silt blocking Grouting Pipe, cause secondary grouting to implement.Further, since slurries segregation detection, at bottom hole or Grouting Pipe bottom
Easily pile up compared with thick slurry liquid, shorten effective interval of injected hole and Grouting Pipe, slip casting effect is not good.
Therefore, designer of the invention is in view of drawbacks described above, it is comprehensive to be engaged in for many years for a long time by concentrating on studies and designing
The experience and achievement of related industry, research and design go out one kind anti-suck sludge proof grouting process and note in deep saturated sand
Sizing device, to overcome drawbacks described above.
The content of the invention
The purpose of the present invention is being to provide one kind anti-suck sludge proof grouting process and note in deep saturated sand
Sizing device, its operation is simple, operation facility, will carry out slip casting to deep full water thawing layer of sand exactly using surface drilling,
Can realize optional grouting pressure, and stop slip casting rear slurry will not suck-back enter Grouting Pipe.In addition, also can effectively prevent slip casting
Grouting Pipe is carried out clearly after pipe ttom of pipe is heavy to starch, the slurry outlet on the effective slip casting interval of blocking or Grouting Pipe, and slip casting terminates
Water is cleaned, and is repeated and is utilized injected hole and Grouting Pipe, realizes the multiple slip casting of interval to stratum.
To solve the above problems, the invention discloses one kind, the slip casting of anti-suck sludge proof is filled in deep saturated sand
Put, including slip casting outer tube and slip casting core pipe, it is characterised in that：
One end closing of the slip casting outer tube, another end opening is simultaneously socketed on the slip casting core pipe, the slip casting core pipe
The slip casting outer tube is inserted in middle part by a threaded sleeve,
The periphery of the slip casting outer tube is dug multigroup slurry outlet, one group of slurry outlet of same radial direction be disposed with two or
Four, and slurry outlet equi-spaced apart multigroup in the axial direction or Unequal distance interval, multiple rubber sleeves, each rubber are provided with slip casting outer tube
Gum cover is covered each by one group of slurry outlet, and each rubber sleeve lower end and the tight colligation of slip casting outer tube or bonding, upper end relies on bullet
Property is posted by slip casting outer tube.
Wherein：The other end of the slip casting core pipe is socketed with another threaded sleeve.
Wherein：Each group slurry outlet on slip casting outer tube spacing in the axial direction is 500mm, between each group slurry outlet is equidistant
Every being set to 4.
Wherein：Slurry outlet aperture on the slip casting outer tube is 8mm.
One kind anti-suck sludge proof grouting process in deep saturated sand is also disclosed, including at least following steps：
A grouting device) is made, thicker slip casting outer tube certain length, slip casting is inserted using thinner slip casting core pipe on ground
Outer tube is fixed with slip casting core pipe using threaded sleeve, the bottom end closure of slip casting outer tube, in the axial direction of slip casting outer tube equidistantly or not
Multigroup slurry outlet is equidistantly dug, slurry outlet is covered with rubber sleeve on slip casting outer tube, rubber sleeve lower end is tight with slip casting outer tube
Colligation or bonding；
B injected hole) is formed, injected hole is drilled through in ground is to layer of sand, injected hole need not set orifice tube, the end of injected hole
Hole site should exceed slip casting destination layer bottom circle certain length, to accommodate hole wall knockout；
C) to grouting device is divided into injected hole, to grouting device is divided into hole, slip casting target is entered under grouting device bottom
Ceng Di circle depth；
D grouting device) is fixed in injected hole, after the completion of grouting device is divided into, is noted in injected hole by slip casting core pipe
Enter sleeve shell material, treat that sleeve shell material is returned out by the gap between slip casting core pipe and injected hole, the sand amount of carrying is less as ending standard,
After terminating note sleeve shell material, slip casting core pipe is rinsed to injected clear water in slip casting core pipe；
E) slip casing by pressure, after after sleeve shell material final set, by slip casting core pipe to slip casing by pressure in slip casting formation at target locations；
F) clear water washes pipe, when single injected hole plasma volume is larger, stops slip casting, and rush to injected clear water in slip casting core pipe
Wash grouting pipeline；
G) secondary grouting, secondary grouting is carried out after grouting serous fluid reaches initial set after first time, i.e., this carries out step E and step again
Rapid F.
By said structure, anti-suck sludge proof grouting process and slip casting in deep saturated sand of the invention
Device has the effect that：
1st, using in entering inlet well under the grouting device of floor manufacture, and grouting device is consolidated using sleeve shell material
It is fixed, slip casting then is carried out to formation at target locations, the problem of the grouting serous fluid suck-back in deep saturated sand can be effectively prevented, it is capable of achieving
To the multiple slip casting of single borehole.
2nd, the mode of slip casting outer tube is socketed using slip casting core pipe, slurries are formed in grouting device and flowed without dead angle, effectively
Isolation of the slurries in Grouting Pipe is avoided to precipitate.
3rd, it is easy to operate, slip casting efficiency high, and slip casting process control, it is good to layer of sand solidification effect.
Detailed content of the invention can be obtained by explanation described later and institute's accompanying drawing.
Brief description of the drawings
Fig. 1 shows the structural representation of the anti-suck sludge proof grouting device in deep saturated sand of the invention.
Fig. 2,3 show that the implementation steps of present invention anti-suck sludge proof grouting process in deep saturated sand are illustrated
Figure.
Reference：
11st, slip casting outer tube；12nd, slip casting core pipe；13rd, threaded sleeve；14th, slurry outlet.
Specific embodiment
Referring to Fig. 1, it is shown that the anti-suck sludge proof grouting device in deep saturated sand of the invention.
The grouting device includes slip casting outer tube 11 and slip casting core pipe 12, and one end of the slip casting outer tube 11 is closed, another
End opening is simultaneously socketed on the slip casting core pipe 12, wherein, institute is inserted in the middle part of the slip casting core pipe 12 by a threaded sleeve 13
Slip casting outer tube 11 is stated, optionally, the other end of the slip casting core pipe 12 is socketed with another threaded sleeve 13, to provide many notes
Slurry core pipe 12 is socketed successively, to adapt to different length and scope.
Wherein, the periphery of the slip casting outer tube 11 is dug multigroup slurry outlet 14, in one group of slurry outlet 14 of same radial direction
Can be disposed with two or four, and slurry outlet 14 multigroup in the axial direction can equi-spaced apart or Unequal distance interval, in slip casting outer tube 11
Be provided with multiple rubber sleeves 15, each rubber sleeve 15 is covered each by one group of slurry outlet 14, and each rubber sleeve 15 lower end and slip casting
Outer tube 11 carries out close colligation or bonding, and upper end relies on elastic abutment in slip casting outer tube, and can be according to the specific pressure of slip casting
Determine the intensity of rubber sleeve 15.Thus device, is capable of achieving slurries and enters slip casting outer tube 11 by slip casting core pipe 12, then by slip casting outside
Slurry outlet 14 on the periphery of pipe 11 exits into slip casting stratum through the upper end of rubber sleeve 15, it can be seen that, in order to prevent slurries in note
The bottom precipitation of outer tube is starched, so slip casting core pipe to be inserted the bottom of slip casting outer tube, and slurry outlet is not provided with slip casting core pipe, allowed
All slurries are returned out from the bottom of slip casting core pipe, and the slurries in slip casting outer tube can be forced to be completely in flow regime.
Wherein, the slip casting core pipe is steel pipe, and outer diameter is 20mm, and wall thickness is 2.5mm, and the slip casting outer tube is steel
Pipe, outer diameter is 50mm, and wall thickness is 3mm.
Wherein, the slip casting core pipe bottom and the distance of slip casting outer tube bottom are 20mm, and the bottom of slip casting outer tube is set to
Tip.
Wherein, the spacing in the longitudinal direction of the slurry outlet on the slip casting outer tube is generally 500mm, pulp radially
Hole is traditionally arranged to be 4, and slurry outlet radially is evenly arranged.
Wherein, the slip casting outer tube determines effective slip casting segment length, and effective slip casting segment length is according to slip casting formation at target locations
Thickness is determined.
Wherein, the slurry outlet aperture on the slip casting outer tube is 8mm.
Wherein, the rubber sleeve allows certain deformation during slip casting, it is ensured that slurries are flowed out by upper end, and just
Do not ruptured under normal grouting pressure and hydraulic pressure.
Wherein, the rubber sleeve can be selected according to design grouting pressure.
Wherein, the surface grout injection boring aperture is 133mm.
Wherein, the inlet well hole depth exceeds slip casting destination layer Wei Di circle 2m.
Wherein, the sleeve shell material is mixed by cement, flyash, bentonite, water.
Wherein, the grouting pressure of the slip casing by pressure specifically determines according to the physico-mechanical properties of slip casting formation at target locations.
Referring to Fig. 2,3, it is shown that grouting process of the invention, including at least following steps：
A grouting device) is made.The thicker certain length of slip casting outer tube 11 is inserted using thinner slip casting core pipe 12 on ground,
Slip casting outer tube 11 is fixed with slip casting core pipe 12 using threaded sleeve 13, the bottom end closure of slip casting outer tube 11.In slip casting outer tube 11
Equidistant or Unequal distance digs multigroup slurry outlet 14 on axial direction, and each group slurry outlet 14 is radially disposed two or four.In slip casting
Slurry outlet 14 is covered with rubber sleeve 15 on outer tube 11, the lower end of rubber sleeve 15 and the colligation of slip casting outer tube 11 or relative close is bonded,
The intensity of rubber sleeve 15 is determined according to grouting pressure.
B injected hole) is formed.Ground according to design in fixed position to layer of sand in drill through injected hole, injected hole need not set
Orifice tube is put, drilling unsuitable hole flushing after finishing, the borehole bottom location of injected hole should exceed slip casting destination layer bottom circle certain length, so as to
Accommodate hole wall knockout.
C) to dividing into grouting device in injected hole.After drilling is completed, to grouting device is divided into drilling, grouting device can
Connected by threaded sleeve by root using many slip casting core pipes 12 and enter injected hole, slip casting destination layer bottom is entered under grouting device bottom
Boundary's depth.
D) grouting device is fixed in injected hole.After the completion of grouting device is divided into, noted in injected hole by slip casting core pipe
Enter sleeve shell material, treat that sleeve shell material is returned out by the gap between slip casting core pipe and injected hole, the sand amount of carrying is less as ending standard.
After terminating note sleeve shell material, slip casting core pipe is rinsed to injected clear water in slip casting core pipe.
E) slip casing by pressure.After after sleeve shell material final set, by slip casting core pipe to slip casing by pressure in slip casting formation at target locations, slurries can
Pressure break solidification sleeve shell material enter formation at target locations in, it is grout curing after can reach solidification layer of sand purpose.
F) clear water washes pipe.When single injected hole plasma volume is larger, it is necessary to interval slip casting.Stop slip casting, and to slip casting core
Injected clear water rinses grouting pipeline in pipe.
G) secondary grouting.Secondary grouting is carried out after grouting serous fluid reaches initial set after first time, i.e., this carries out step E and step again
Rapid F.Optionally, as needed with slip casting situation, multiple slip casting can be carried out, step E and step F has both repeatedly been repeated.
Grouting method of the invention is applied in the solid sand plug Hydraulic Projects of the huge thick saturated sand slip casting in northern Shensi colliery,
Achieve following practical function：
1) down tube success rate realizes 100%.Because this method uses all steel material, divide into Grouting Pipe and grouting device is not received
The influence of mud balance, sand content in injected hole, after entering injected hole under Grouting Pipe and grouting device, will not be because of hydraulic pressure and sandy soils
Pressure causes grouting device to deform and rupture, and influences slip casting process and quality.
2) this grouting method is utilized, the grouting horizon depth in huge thick full water loose sand has reached 110m, and
And this depth is not the limit depth that this grouting method is reached.According to stratum water and formation condition, slip casting depth is still expansible.
Slip casting depth in the present embodiment, 80m is improve than conventional 30m depth.
3) grouting method in the present invention effectively increases the utilization ratio of injected hole.In the present embodiment, using this note
Paste-making method, realizes the multiple slip casting of interval of single hole, according to actual effect from the point of view of, if slip casting and hole flushing suitable operation, interval note
Slurry number of times is unrestricted.
4) grouting pressure is improve, the range of scatter of slurries in layer of sand is expanded.This method grout injection control pressure can reach
10MPa, and can ensure grouting device not by pressure break and destruction.Grouting pressure improves several times than conventional method.
Grouting method of the invention is applied in the present embodiment, hence it is evident that improve the quality of the solid sand plug Hydraulic Projects of slip casting, and
Cost reduction is notable, and comprehensive benefit is more excellent.
By said structure, one kind multiple Cementer of anti-suck sludge proof in deep saturated sand of the invention
Skill has the following advantages that：
First, anti-suck.Slurry outlet on slip casting outer tube wall is sealed using rubber sleeve, realizes the one-way flow of slurries
Feature, i.e. slurries are only capable of from grouting device entering slip casting formation at target locations by slurry outlet and its with the gap of rubber sleeve, without
Energy reverse flow, effectively prevent suck-back backflow.
Second, anti-precipitation.Slip casting core pipe is inserted into slip casting outer tube, slurries is returned upwards by the end of slip casting outer tube, passed through
Slurry outlet flows out grouting device.The method makes slurries in grouting device all the time in flow disturbance state, will not be filled in slip casting
Put and cause the phenomenons such as flow velocity reduction, slurries isolation, solid particle precipitation.
3rd, efficiency high.The length and pulp hole count of length and characteristics design grouting device according to slip casting formation at target locations
Amount, it is more long that single slip casting can note section, and can the laggard slip casting of in the ranks having a rest of hole flushing.
4th, effect is good.When slip casting is carried out to deep and thick sand or the larger stratum of hydraulic pressure, using the sealing of rubber sleeve
Effect, it is possible to achieve the pressurize after elevated pressures slip casting and slip casting, deposits and solidifies beneficial to slurries in space.
5th, benefit is excellent.Slip casting is carried out using the method, single hole slip casting success rate is higher, and grouting horizon is controllable, can save
Cost.
It is readily apparent that the description of the above and record are only to illustrate rather than in order to limit in disclosure of the invention
Hold, using or use.Although embodiment was described and be described in the drawings in embodiment, the present invention is not limited
By accompanying drawing example and described in embodiment as it is now recognized that optimal mode implementing the particular case of the teachings of the present invention
Son, the scope of the present invention will include falling into any embodiment of description and appended claims above.
Claims (5)
1. one kind anti-suck sludge proof grouting device in deep saturated sand, including slip casting outer tube and slip casting core pipe, it is special
Levy and be：
One end closing of the slip casting outer tube, another end opening is simultaneously socketed on the slip casting core pipe, the middle part of the slip casting core pipe
The slip casting outer tube is inserted in by a threaded sleeve,
The periphery of the slip casting outer tube is dug multigroup slurry outlet, and two or four are disposed with one group of slurry outlet of same radial direction
It is individual, and slurry outlet equi-spaced apart multigroup in the axial direction or Unequal distance interval, multiple rubber sleeves, each rubber are provided with slip casting outer tube
Set is covered each by one group of slurry outlet, and each rubber sleeve lower end and the tight colligation of slip casting outer tube or bonding, upper end is by elasticity
Slip casting outer tube is posted by, thus, slurries enter slip casting outer tube by slip casting core pipe, are then passed through by the slurry outlet on slip casting outer tube periphery
Rubber set upper side exits into slip casting stratum, and slurry outlet is not provided with slip casting core pipe, allows all slurries from the bottom of slip casting core pipe
Return out, force the slurries in slip casting outer tube to be completely in flow regime.
2. grouting device as claimed in claim 1, it is characterised in that：One end of the slip casting core pipe is socketed with another thread bush
Pipe.
3. grouting device as claimed in claim 1, it is characterised in that：Each group slurry outlet on the slip casting outer tube is in the axial direction
Spacing be 500mm, each group slurry outlet equi-spaced apart is set to 4.
4. grouting device as claimed in claim 1, it is characterised in that：Slurry outlet aperture on the slip casting outer tube is 8mm.
5. one kind anti-suck sludge proof grouting process in deep saturated sand, including at least following steps：
A grouting device) is made, thicker slip casting outer tube certain length, slip casting outer tube is inserted using thinner slip casting core pipe on ground
Fixed using threaded sleeve with slip casting core pipe, the bottom end closure of slip casting outer tube, the equidistant or Unequal distance in the axial direction of slip casting outer tube
Multigroup slurry outlet is dug, slurry outlet is covered with rubber sleeve on slip casting outer tube, rubber sleeve lower end and the tight colligation of slip casting outer tube
Or bond；
B injected hole) is formed, injected hole is drilled through in ground is to layer of sand, injected hole need not set orifice tube, the whole hole position of injected hole
Putting should be beyond slip casting destination layer bottom circle certain length, to accommodate hole wall knockout；
C) to grouting device is divided into injected hole, slip casting destination layer bottom circle depth is entered under grouting device bottom；
D grouting device) is fixed in injected hole, after the completion of grouting device is divided into, by slip casting core pipe to injection set in injected hole
Shell material, treats that sleeve shell material is returned out by the gap between slip casting core pipe and injected hole, and the sand amount of carrying is less as ending standard, terminates
After note sleeve shell material, slip casting core pipe is rinsed to injected clear water in slip casting core pipe, thus, the slurries of flushing enter slip casting by slip casting core pipe
Outer tube, then exits into slip casting stratum by the slurry outlet on slip casting outer tube periphery through rubber set upper side, is not set in slip casting core pipe
Slurry outlet is put, allows all slurries to be returned out from the bottom of slip casting core pipe, force the slurries in slip casting outer tube to be completely in flow regime；
E) slip casing by pressure, after after sleeve shell material final set, by slip casting core pipe to slip casing by pressure in slip casting formation at target locations；
F) clear water washes pipe, when single injected hole plasma volume is larger, stops slip casting, and rinse note to injected clear water in slip casting core pipe
Slurry pipeline；
G) secondary grouting, secondary grouting is carried out after grouting serous fluid reaches initial set after first time, i.e., carry out step E and step F again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510756244.7A CN105274994B (en) | 2015-11-06 | 2015-11-06 | Anti-suck sludge proof grouting process and grouting device in deep saturated sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510756244.7A CN105274994B (en) | 2015-11-06 | 2015-11-06 | Anti-suck sludge proof grouting process and grouting device in deep saturated sand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105274994A CN105274994A (en) | 2016-01-27 |
| CN105274994B true CN105274994B (en) | 2017-06-09 |
Family
ID=55144754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510756244.7A Active CN105274994B (en) | 2015-11-06 | 2015-11-06 | Anti-suck sludge proof grouting process and grouting device in deep saturated sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105274994B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703038B (en) * | 2016-11-30 | 2019-01-29 | 上海建工集团股份有限公司 | A kind of horizontal reciprocating Grouting Pipe of mechanical non-return and its construction method |
| CN112523221A (en) * | 2020-11-12 | 2021-03-19 | 温州竺陌机械科技有限公司 | Pile foundation engineering slip casting pipe with self-cleaning function |
| CN112917660B (en) * | 2021-01-27 | 2022-04-26 | 山东科技大学 | Efficient anti-blocking backflow grouting pipe and method |
| CN113389201B (en) * | 2021-06-30 | 2022-06-21 | 大连理工大学 | Grouting method of efficient anchor rod pressure grouting system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3886754A (en) * | 1973-07-27 | 1975-06-03 | Lee A Turzillo | Method of extending augered pile cavity through rock or like obstruction |
| CN2555288Y (en) * | 2002-02-08 | 2003-06-11 | 江苏南水土建工程公司 | High efficiency slurry pouring pipe for foundation engineering |
| CN1587544A (en) * | 2004-07-30 | 2005-03-02 | 于来喜 | Multipurpose controllable slip casting device after cleaving and utilizing process |
| CN102363958A (en) * | 2011-11-21 | 2012-02-29 | 许瑞琴 | Grouting pipe |
| CN104805842A (en) * | 2015-04-20 | 2015-07-29 | 中铁建设集团有限公司 | Steel flower pipe segmented grouting system and construction method thereof |
| CN205077490U (en) * | 2015-11-06 | 2016-03-09 | 中煤科工集团西安研究院有限公司 | Prevent suck -back and prevent slip casting device that deposits in deep full water sand bed |
-
2015
- 2015-11-06 CN CN201510756244.7A patent/CN105274994B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3886754A (en) * | 1973-07-27 | 1975-06-03 | Lee A Turzillo | Method of extending augered pile cavity through rock or like obstruction |
| CN2555288Y (en) * | 2002-02-08 | 2003-06-11 | 江苏南水土建工程公司 | High efficiency slurry pouring pipe for foundation engineering |
| CN1587544A (en) * | 2004-07-30 | 2005-03-02 | 于来喜 | Multipurpose controllable slip casting device after cleaving and utilizing process |
| CN102363958A (en) * | 2011-11-21 | 2012-02-29 | 许瑞琴 | Grouting pipe |
| CN104805842A (en) * | 2015-04-20 | 2015-07-29 | 中铁建设集团有限公司 | Steel flower pipe segmented grouting system and construction method thereof |
| CN205077490U (en) * | 2015-11-06 | 2016-03-09 | 中煤科工集团西安研究院有限公司 | Prevent suck -back and prevent slip casting device that deposits in deep full water sand bed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105274994A (en) | 2016-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104453913B (en) | A kind of Shaft Stopes front pre-grouting method | |
| CN106014201B (en) | A kind of outer release hole safe construction technique of tunnel grouting curtain | |
| CN107761753B (en) | A kind of foundation pit water burst rapid rescue slip casting method for blocking | |
| CN105274994B (en) | Anti-suck sludge proof grouting process and grouting device in deep saturated sand | |
| CN101761345A (en) | Reinforcement device for tunnel top soil and construction method thereof | |
| CN105040775B (en) | Deep layer pressure-bearing artesian well plugging system and method | |
| CN106761835B (en) | A kind of Karst Tunnel leak segmenting slip casting construction method | |
| CN105821830A (en) | Permeation increase siphon drainage system for low-permeability soil slope | |
| CN103334770A (en) | Construction method of superhigh water pressure water-affluent crushed zones of long-large counter-slope tunnels | |
| CN105239984A (en) | Method for controlling coal mine underground fracturing crack propagation | |
| CN110318410A (en) | A kind of deep basal pit chance artesian water is prominent to gush decompression drought stress construction method | |
| CN107747312A (en) | A kind of method of sand and gravel stratum well cementing construction | |
| CN107152294A (en) | High hydraulic pressure big flow Karst Tunnel underground water seal blocking method | |
| CN111005760A (en) | Drainage type drainage system for karst tunnel | |
| CN103031847B (en) | Reducing overlap joint combined type orifice pipe grouting method | |
| CN112746849A (en) | Shaft water-carrying digging and building method | |
| CN108590716A (en) | A kind of tunnel crosses rich water tomography tree root type and dredges water blockoff integral construction method | |
| CN203702071U (en) | Water inrush preventing drill ejecting device for water exploration and grouting construction of vertical shaft | |
| CN111441819A (en) | Tunnel advanced exploratory hole karst high-pressure water burst plugging device and method | |
| CN110130982A (en) | A kind of traffic tunnel building safety construction method | |
| CN105178966A (en) | Grouting process for water blocking by wall breaking for mine vertical shafts | |
| CN208502786U (en) | Multilevel hierarchy suspension device for rich water sandy gravel stratum tunnel | |
| CN116816389A (en) | Tunnel water-rich karst collapse cavity treatment method | |
| CN205077490U (en) | Prevent suck -back and prevent slip casting device that deposits in deep full water sand bed | |
| CN107218010B (en) | Water plugging bridge plug for damaged drilling sleeve and double-bridge plug type water plugging method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210721 Address after: 300000 building 709, Minghai center, CCCC C Valley, pilot Free Trade Zone, Binhai New Area, Tianjin (Dongjiang Bonded Port Area) Patentee after: China Coal Science and Technology Co.,Ltd. Address before: No.82, Jinye 1st Road, hi tech Zone, Xi'an City, Shaanxi Province Patentee before: XI'AN RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY & ENGINEERING Group Corp. |
|
| TR01 | Transfer of patent right |