CN115419078A - Foundation pit support structure anchor cable end leakage water plugging device and construction method - Google Patents
Foundation pit support structure anchor cable end leakage water plugging device and construction method Download PDFInfo
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- CN115419078A CN115419078A CN202210996458.1A CN202210996458A CN115419078A CN 115419078 A CN115419078 A CN 115419078A CN 202210996458 A CN202210996458 A CN 202210996458A CN 115419078 A CN115419078 A CN 115419078A
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- anchor cable
- plugging
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 238000005553 drilling Methods 0.000 claims abstract description 28
- 230000008093 supporting effect Effects 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 11
- 230000000295 complement effect Effects 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims description 31
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 3
- 208000005156 Dehydration Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a device for plugging water leakage at an anchor cable end of a foundation pit support structure and a construction method, belonging to the technical field of anchor cable engineering and comprising a plugging structure, wherein the plugging structure plugs along the opening direction of the support structure; the plugging structure is a circular truncated cone structure formed by beveling a large end by an inclined plane, the inclined plane and the axis of the plugging structure form an included angle, and the included angle is complementary with the drilling inclination angle of the anchor cable; the plugging structure comprises an inner side elastic structure, an outer side elastic structure and a supporting framework, wherein the supporting framework is arranged between the inner side elastic structure and the outer side elastic structure; the inner elastic structure and the supporting framework are of circular tubular structures; the inner side elastic structure, the outer side elastic structure and the supporting framework are coaxial with the plugging structure; the inner side rubber structure is provided with an anchor cable hole and a grouting hole, the anchor cable hole is in interference fit with the anchor cable, and the grouting hole is in interference fit with the grouting pipe; the outer surface of the outer elastic structure is provided with an anti-slip contact surface; the invention can be manufactured in factories, is convenient to install, has high efficiency of plugging water leakage and good water stopping effect.
Description
Technical Field
The invention belongs to the technical field of anchor cable engineering, and particularly relates to a device for plugging water leakage at an anchor cable end of a foundation pit support structure and a construction method.
Background
At present, an anchor cable supporting system is adopted for a building enclosure structure generally, but an anchor cable supporting system is adopted for a water-rich sand layer and a limestone area where a solution and a soil cave develop, so that the anchor cable leakage phenomenon is easy to occur, and the anchor cable construction and the foundation pit safety are influenced. At present, the anchor cable leakage water is mostly blocked by grouting, a certain blocking and water stopping effect is achieved, but for deep foundation pits and under the condition of large water head pressure, slurry is easily diluted and washed away by high water head pressure, blocking and water stopping can not be carried out at the first time, and blocking efficiency is low. If the anchor cable leaks water seriously, can not in time shutoff stagnant water, cause the peripheral dehydration of foundation ditch very easily, lead to the peripheral structure of foundation ditch to subside. Therefore, a new technique is needed to solve the problem of water leakage at the end of the anchor cable in the prior art.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a foundation pit support structure anchor cable end leakage water plugging device and a construction method.
The invention adopts the following technical scheme:
a foundation pit support structure anchor cable end leakage water plugging device comprises a plugging structure, wherein the plugging structure plugs along the opening direction of a support structure; the plugging structure is a circular truncated cone structure with a large end head obliquely cut by an inclined plane, the inclined plane and the axis of the plugging structure form an included angle, and the included angle is complementary with the anchor cable drilling inclination angle, so that the plugging structure is tightly attached to the enclosure structure, and the waist beam construction, the anchor installation and the anchor cable tensioning are not influenced;
the plugging structure comprises an inner side elastic structure, an outer side elastic structure and a supporting framework, wherein the supporting framework is arranged between the inner side elastic structure and the outer side elastic structure; the inner elastic structure and the support framework are of circular tubular structures; the inner side elastic structure, the outer side elastic structure and the supporting framework are coaxial with the plugging structure;
the inner side rubber structure is provided with a plurality of holes, the holes comprise anchor cable holes and grouting holes, the anchor cable holes are in interference fit with the anchor cables, and the grouting holes are in interference fit with the grouting pipes;
the outer surface of the outer side elastic structure is provided with an anti-sliding contact surface, and the friction force between the anti-sliding contact surface and the enclosure structure can balance the water pressure outside the enclosure pile;
the minimum outer diameter of the outer side elastic structure is larger than the diameter of the opening of the enclosure structure.
Further, the inner elastic structure is an inner rubber structure, and the outer elastic structure is an outer rubber structure.
Further, the inner surfaces of the anchor cable hole and the grouting hole are smooth.
Furthermore, the anchor cable holes and the grouting holes are respectively provided with a plurality of holes, the anchor cable holes are arranged in an equi-circumferential array around the axis of the blocking structure, the grouting holes are located in the middle part near the axis of the blocking structure and are symmetrically arranged along the axis of the blocking structure, and the anchor cable holes are located on the periphery of the grouting holes.
Further, the number of the anchor cable holes and the number of the grouting holes are determined according to the number of designed anchor cables and the number of grouting pipes. The plugging structure is provided with six anchor cable holes and two grouting holes.
Further, the support framework is a PVC support framework.
A construction method for plugging water leakage at an anchor cable end of a foundation pit support structure comprises the following steps:
s1, determining relevant parameters of the plugging structure and manufacturing;
s2, drilling construction work of the on-site enclosure structure;
s3, plugging the open hole of the enclosure structure by using the plugging structure;
and S4, finishing the subsequent construction work.
Further, the step S1 includes the steps of:
s11, determining the anchor cable drilling inclination angle; then determining the included angle according to the anchor cable drilling inclination angle;
s12, determining the diameter of an opening of the enclosure structure; then determining the minimum outer diameter of the outer side elastic structure and the size of the blocking structure according to the diameter of the opening of the envelope structure;
s13, determining the water head pressure outside the fender post; then determining the friction coefficient of the anti-sliding contact surface according to the water head pressure outside the fender pile;
and S14, carrying out factory customization.
Further, the step S2 includes the steps of:
s21, performing anchor cable drilling construction, and drilling to a designed depth;
s22, conveying the anchor cable and the grouting pipe to the designed depth.
Further, the step S3 includes the steps of:
s31, pulling out the following positioning steel sleeve;
s32, sleeving the plugging structure on the anchor cable and the grouting pipe extending out of the enclosure structure;
s33, compressing the outer side rubber structure to enable the outer side rubber structure to deform and smaller than the opening diameter of the enclosure structure, pushing and pressing the blocking structure to enable the end portion of the blocking structure to be flush with the inner side face of the enclosure pile, and after the outer side rubber structure recovers to deform, the blocking structure is closely attached to the opening of the enclosure structure, the anchor cable and the grouting pipe, so that the effect of blocking and stopping water is achieved.
Further, the step S4 includes the following steps:
and S41, after plugging and water stopping are finished, grouting, constructing anchor rope waist beams, installing anchor backing plates, anchoring devices, tensioning anchor ropes and the like can be continuously finished according to design requirements.
Compared with the prior art, the invention has the following beneficial effects: the plugging structure is a plugging device and is plugged along the direction of the opening of the enclosure structure, the plugging structure is a circular truncated cone structure formed by obliquely cutting a large end head by an inclined plane, the inclined plane and the axis of the plugging structure form an included angle, the included angle is complementary to the drilling inclination angle of the anchor cable, the included angle is the key for manufacturing the plugging structure, and the oblique cutting inclination angle of the inclined plane during manufacturing the plugging structure can be determined through the drilling inclination angle, so that the oblique section of the large end head can be parallel to the vertical plane of the enclosure structure when the plugging structure is used for plugging the opening of the enclosure structure, the optimal plugging effect is achieved, and the anchor cable waist beam application and subsequent anchor cable tensioning cannot be influenced;
the supporting framework plays a supporting role in the blocking structure, the overall strength and the stability of the blocking structure are better protected, the anchor cable hole and the grouting hole in the inner elastic structure are respectively in interference fit with the anchor cable and the grouting pipe, the interference fit mainly has the effect that the blocking structure is tightly attached to the anchor cable and the grouting pipe, the possibility that the blocking structure slides along the anchor cable and the grouting pipe after blocking is reduced, the possibility of water leakage along the gap between the anchor cable hole and the anchor cable and the gap between the grouting hole and the grouting pipe is reduced, meanwhile, the outer surface of the outer elastic structure is provided with a slip-resistant contact surface, friction between the slip-resistant contact surface and the enclosing structure can balance the water pressure outside the enclosing pile, the blocking structure after blocking is prevented from sliding along the anchor cable and the grouting pipe under the action of the water pressure, and meanwhile, the minimum diameter of the small end of the outer elastic structure is larger than the diameter of an opening of the enclosing structure, so that the blocking structure can be tightly blocked in the opening, and the effects of tight blocking and the blocking structure can be prevented from sliding.
The invention adopts the elastic structure, can be manufactured in factories, has small dead weight, is convenient to carry and install, has the characteristics of strong universality and high field feasibility, can finish plugging and water stopping in the first time if the anchor cable has the condition of water leakage in the construction process of the anchor cable of the enclosure structure, improves the construction efficiency and simultaneously ensures the safety of the enclosure structure and surrounding buildings.
Drawings
The technology of the present invention is described in further detail below with reference to the accompanying drawings and the detailed description:
FIG. 1 is a schematic cross-sectional view of a plugging structure;
FIG. 2 is a schematic cross-section at the large end of the occluding structure;
FIG. 3 is a schematic cross-section at the small end of the occluding structure;
fig. 4 is a schematic sectional view of an anchor cable support system of a foundation pit support structure.
Reference numerals:
1-a blocking structure; 11-an inner elastic structure; 111-well; 1111-anchor cable holes; 1112-grouting holes; 12-a lateral elastic structure; 121-anti-sliding contact surface; 13-a support skeleton; 14-inclined plane; 15-small end; a-included angle; b, drilling an anchor cable to form an inclination angle; 2-fender posts; 3-the opening diameter of the building envelope; 41-anchor cable and grouting pipe; 42-anchor cable waist beam; 43-anchor backing plate; 44-anchorage device.
Detailed Description
The conception, the specific structure and the technical effects produced by the present invention will be clearly and completely described in conjunction with the embodiments and the attached drawings, so as to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the respective components of the present invention with respect to each other in the drawings.
Referring to fig. 1 to 4, the foundation pit support structure anchor cable end leakage water plugging device comprises a plugging structure 1, wherein the plugging structure 1 plugs along the opening direction of the support structure; the plugging structure 1 is a circular truncated cone structure with a large end chamfered by an inclined plane 14, the inclined plane 14 and the axis of the plugging structure 1 form an included angle A, and the included angle A is complementary to an anchor cable drilling inclination angle B; through anchor rope drilling inclination B, can confirm contained angle A of block structure 1, and then confirm the shape and the size of block structure 1, guarantee that block structure 1 and envelope anchor rope trompil closely laminate to do not influence anchor rope waist rail 42 and carry out and follow-up anchor rope stretch-draw.
The plugging structure 1 comprises an inner side elastic structure 11, an outer side elastic structure 12 and a supporting framework 13, wherein the supporting framework 13 is arranged between the inner side elastic structure 11 and the outer side elastic structure 12; the inner elastic structure 11 and the supporting framework 13 are of a circular tubular structure; the inner elastic structure 11, the outer elastic structure 12 and the support framework 13 are all coaxial with the plugging structure 1;
the inner side rubber structure 11 is provided with a plurality of holes 111, the plurality of holes 111 comprise an anchor cable hole 1111 and a grouting hole 1112, the anchor cable hole 1111 is in interference fit with an anchor cable, and the grouting hole 1112 is in interference fit with a grouting pipe; wherein, the plugging structure 1 combines the plastic deformation characteristic of elastic material, can closely laminate with anchor rope drilling, anchor rope, slip casting pipe.
The outer surface of the outer elastic structure 12 is provided with an anti-slip contact surface 121, and the friction force between the anti-slip contact surface 121 and the enclosure structure can balance the water pressure outside the enclosure pile 2; underground water outside the foundation pit can be prevented from flowing out from the contact surfaces of the anchor cable end plugging structure 1 and the anchor cable drilling hole, the anchor cable and the grouting pipe.
The minimum outer diameter of the small end 15 of the outer elastic structure 12 is larger than the opening diameter 3 of the enclosure structure. The main function is to satisfy the tight plugging effect of the plugging structure 1.
In one embodiment, the inner elastic structure 11 is an inner rubber structure and the outer elastic structure 12 is an outer rubber structure. The inner rubber structure has the characteristic of plastic deformation, and the anchor cable and the grouting pipe 41 are tightly attached to the inner rubber structure after penetrating through the anchor cable hole and the grouting hole respectively.
In one embodiment, the inner surfaces of the anchor line bore 1111 and the grout bore 1112 are smooth. The main function is to facilitate the anchor cable and the grouting pipe 41 to pass through and not affect the later tension of the anchor cable.
In one embodiment, there are several anchor line holes 1111 and several grouting holes 1112, the anchor line holes 1111 are arranged in an equi-circumferential array around the axis of the blocking structure 1, the grouting holes 1112 are located near the middle of the axis of the blocking structure 1 and symmetrically arranged along the axis of the blocking structure 1, and the anchor line holes 1111 are located at the periphery of the grouting holes 1112.
In one embodiment, the number of the anchor cable holes and the number of the grouting holes are determined according to the number of designed anchor cables and the number of grouting pipes. Referring to fig. 2 and 3, in the present embodiment, there are six anchor line holes 1111 and two grouting holes 1112.
In one embodiment, the support frame 13 is a PVC support frame. The diameter of the PVC supporting framework is smaller than the diameter of the opening of the building envelope 3, the PVC supporting framework has a supporting effect in the plugging structure 1, and the overall strength and stability of the plugging structure 1 can be better guaranteed.
A construction method for plugging water leakage at an anchor cable end of a foundation pit support structure comprises the following steps:
s1, determining relevant parameters of the plugging structure 1 and manufacturing;
s2, drilling construction work of the on-site enclosure structure;
s3, plugging the open hole of the enclosure structure by using the plugging structure 1;
and S4, finishing subsequent construction work.
In one embodiment, the step S1 includes the steps of:
s11, determining the anchor cable drilling inclination angle B; then determining the included angle A according to the anchor cable drilling inclination angle B;
s12, determining the diameter 3 of an opening of the enclosure structure; then determining the minimum outer diameter of the outer elastic structure 12 and the size of the blocking structure 1 according to the opening diameter 3 of the enclosure structure;
s13, determining the water head pressure outside the fender pile 2; then determining the friction coefficient of the anti-sliding contact surface 121 according to the outside water head pressure of the fender post 2;
and S14, processing and customizing the plugging structure 1 in a factory.
In one embodiment, the step S2 includes the steps of:
s21, performing anchor cable drilling construction, wherein if water leakage or water burst occurs at the drilling hole opening part of the anchor cable in the drilling process of the drilling machine, the anchor cable needs to be drilled to the designed depth continuously;
s22, completing drilling and conveying the anchor cable and the grouting pipe to the designed depth.
In one embodiment, the S3 step includes the steps of:
s31, after the anchor cable and the grouting pipe are conveyed to a design position, pulling out a follow-up positioning steel sleeve;
s32, sleeving the plugging structure 1 on the anchor cable and the grouting pipe extending out of the enclosure structure;
s33, compressing the outer side rubber structure 12 to enable the outer side rubber structure to deform, slightly smaller than the opening diameter 3 of the enclosure structure, pushing and pressing the blocking structure 1 to enable the end portion of the blocking structure to be flush with the inner side face of the enclosure pile 2, and after the outer side rubber structure recovers to deform, the blocking structure 1 is closely attached to the opening of the enclosure structure, the anchor cable and the grouting pipe, so that the water stopping effect is blocked.
In one embodiment, the step S4 includes the steps of:
s41, after plugging and water stopping are finished, grouting, anchor rope waist beam 42 construction, anchor backing plate 43 installation, anchor 44 stretching and anchor rope stretching and the like can be continuously finished according to design requirements.
The invention mainly aims to provide a foundation pit support structure anchor cable end leakage water plugging device and a construction method, and is characterized in that the shape and the size of a plugging structure 1 are determined according to an anchor cable drilling inclination angle B and an opening diameter 3 of a support structure, factory manufacturing can be carried out, installation is convenient, and subsequent construction procedures of the anchor cable are not influenced. If the anchor cable leakage water occurs on site, the anchor cable leakage water plugging time can be shortened to the maximum extent, the serious dehydration of the stratum is favorably controlled, the practicability in the foundation pit anchor cable leakage water emergency rescue aspect is high, and the time effect advantage is obvious.
The device for plugging the foundation pit support structure anchor cable end leakage water and the construction method thereof have the advantages that the other contents are referred to the prior art and are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A foundation pit support structure anchor cable end leakage water plugging device is characterized by comprising a plugging structure, wherein the plugging structure plugs along the opening direction of a support structure; the plugging structure is a circular truncated cone structure formed by obliquely cutting a large end by an inclined plane, the inclined plane and the axis of the plugging structure form an included angle, and the included angle is complementary with the anchor cable drilling dip angle;
the blocking structure comprises an inner side elastic structure, an outer side elastic structure and a supporting framework, and the supporting framework is arranged between the inner side elastic structure and the outer side elastic structure; the inner side elastic structure and the support framework are of circular tubular structures; the inner side elastic structure, the outer side elastic structure and the supporting framework are coaxial with the plugging structure;
the inner side rubber structure is provided with a plurality of holes, the holes comprise anchor cable holes and grouting holes, the anchor cable holes are in interference fit with the anchor cables, and the grouting holes are in interference fit with the grouting pipes;
the outer surface of the outer side elastic structure is provided with an anti-slip contact surface, and the friction force between the anti-slip contact surface and the enclosure structure can balance the water pressure outside the enclosure pile;
the minimum outer diameter of the outer side elastic structure is larger than the diameter of the opening of the enclosure structure.
2. The foundation pit support structure anchor rope end leakage water plugging device of claim 1, wherein the inside elastic structure is an inside rubber structure, and the outside elastic structure is an outside rubber structure.
3. The foundation pit support structure anchor cable end leakage water plugging device of claim 1, wherein the inner surfaces of the anchor cable hole and the grouting hole are smooth.
4. The foundation pit support structure anchor cable end leakage water plugging device of claim 3, wherein the anchor cable holes and the grouting holes are respectively provided with a plurality of holes, the anchor cable holes are in an equi-circumferential array around the axis of the plugging structure, the grouting holes are located in the middle part near the axis of the plugging structure and symmetrically arranged along the axis of the plugging structure, and the anchor cable holes are located at the periphery of the grouting holes.
5. The foundation pit support structure anchor cable end leakage water plugging device of claim 1, wherein the support framework is a PVC support framework.
6. A foundation pit support structure anchor cable end leakage water plugging construction method is characterized in that the foundation pit support structure anchor cable end leakage water plugging device according to any one of claims 1 to 5 is adopted, and the method comprises the following steps:
s1, determining relevant parameters of the plugging structure and manufacturing;
s2, drilling construction work of the on-site enclosure structure;
s3, plugging the open hole of the enclosure structure by using the plugging structure;
and S4, finishing subsequent construction work.
7. The foundation pit support structure anchor cable end leakage water plugging construction method according to claim 6, wherein the step S1 comprises the following steps:
s11, determining the anchor cable drill hole inclination angle; then determining the included angle according to the anchor cable drilling inclination angle;
s12, determining the diameter of an opening of the enclosure structure; then determining the minimum outer diameter of the outer side elastic structure and the size of the blocking structure according to the diameter of the opening of the envelope structure;
s13, determining the water head pressure outside the fender pile; then determining the friction coefficient of the anti-sliding contact surface according to the water head pressure outside the fender pile;
and S14, carrying out factory customization.
8. The foundation pit support structure anchor cable end leakage water plugging construction method according to claim 6, wherein the step S2 comprises the following steps:
s21, performing anchor cable drilling construction, and drilling to a designed depth;
s22, conveying the anchor cable and the grouting pipe to the designed depth.
9. The foundation pit support structure anchor cable end leakage water plugging construction method as claimed in claim 6, wherein the step S3 comprises the steps of:
s31, pulling out the following positioning steel sleeve;
s32, sleeving the plugging structure on the anchor cable and the grouting pipe extending out of the enclosure structure;
s33, compression outside rubber construction makes it warp, and is less than envelope' S trompil diameter bulldozes envelope makes its tip and fender pile medial surface parallel and level, treats outside rubber construction resumes the back of warping, envelope will with envelope trompil, anchor rope, slip casting pipe closely laminate, reach the effect of shutoff stagnant water.
10. The foundation pit support structure anchor cable end leakage water plugging construction method as claimed in claim 6, wherein the step S4 comprises the following steps:
and S41, after plugging and water stopping are finished, grouting, constructing anchor rope waist beams, installing anchor backing plates, anchoring devices, tensioning anchor ropes and the like can be continuously finished according to design requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210996458.1A CN115419078B (en) | 2022-08-19 | 2022-08-19 | Device for plugging leakage water at end head of anchor cable of foundation pit support structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210996458.1A CN115419078B (en) | 2022-08-19 | 2022-08-19 | Device for plugging leakage water at end head of anchor cable of foundation pit support structure and construction method |
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| CN115419078A true CN115419078A (en) | 2022-12-02 |
| CN115419078B CN115419078B (en) | 2023-11-24 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2594551Y (en) * | 2002-12-16 | 2003-12-24 | 柳州欧维姆机械有限责任公司 | Bowl style slurry stopper |
| CN201292853Y (en) * | 2008-11-28 | 2009-08-19 | 天地科技股份有限公司 | Pulp stopping plug for cable |
| CN101705788A (en) * | 2009-08-31 | 2010-05-12 | 上海强劲基础工程有限公司 | Construction method using blowout plug to shield oblique drilling hole |
| CN102182481A (en) * | 2011-04-11 | 2011-09-14 | 中国科学院武汉岩土力学研究所 | Anchor rope grouting-stop plug |
| CN202745897U (en) * | 2012-05-08 | 2013-02-20 | 刘文江 | Slurry stop plug of grouting anchor cable |
| CN204532393U (en) * | 2015-03-31 | 2015-08-05 | 招金矿业股份有限公司大尹格庄金矿 | To the wooden stop grouting plug of long cable supporting grouting on a kind of |
| CN110374653A (en) * | 2019-08-21 | 2019-10-25 | 中国矿业大学 | A kind of hollow grouting cable anchor hole sealing device of rock crusher band and its method for sealing |
| WO2020007055A1 (en) * | 2018-12-27 | 2020-01-09 | 山东科技大学 | Combined tension and compression yielding and energy-absorbing grouting anchor bolt for large deformation in surrounding rock, and working method |
-
2022
- 2022-08-19 CN CN202210996458.1A patent/CN115419078B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2594551Y (en) * | 2002-12-16 | 2003-12-24 | 柳州欧维姆机械有限责任公司 | Bowl style slurry stopper |
| CN201292853Y (en) * | 2008-11-28 | 2009-08-19 | 天地科技股份有限公司 | Pulp stopping plug for cable |
| CN101705788A (en) * | 2009-08-31 | 2010-05-12 | 上海强劲基础工程有限公司 | Construction method using blowout plug to shield oblique drilling hole |
| CN102182481A (en) * | 2011-04-11 | 2011-09-14 | 中国科学院武汉岩土力学研究所 | Anchor rope grouting-stop plug |
| CN202745897U (en) * | 2012-05-08 | 2013-02-20 | 刘文江 | Slurry stop plug of grouting anchor cable |
| CN204532393U (en) * | 2015-03-31 | 2015-08-05 | 招金矿业股份有限公司大尹格庄金矿 | To the wooden stop grouting plug of long cable supporting grouting on a kind of |
| WO2020007055A1 (en) * | 2018-12-27 | 2020-01-09 | 山东科技大学 | Combined tension and compression yielding and energy-absorbing grouting anchor bolt for large deformation in surrounding rock, and working method |
| CN110374653A (en) * | 2019-08-21 | 2019-10-25 | 中国矿业大学 | A kind of hollow grouting cable anchor hole sealing device of rock crusher band and its method for sealing |
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