CN212153762U - Water stop - Google Patents

Water stop Download PDF

Info

Publication number
CN212153762U
CN212153762U CN201922321444.6U CN201922321444U CN212153762U CN 212153762 U CN212153762 U CN 212153762U CN 201922321444 U CN201922321444 U CN 201922321444U CN 212153762 U CN212153762 U CN 212153762U
Authority
CN
China
Prior art keywords
pipe
water stop
water
connecting pipe
independent
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
Application number
CN201922321444.6U
Other languages
Chinese (zh)
Inventor
韩蕊
杨进新
付云升
石维新
张奇
付帮磊
吴明哲
于心悦
许光卓
丁艳辉
宁宇
杨晓蕾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING INSTITUTE OF WATER
Original Assignee
BEIJING INSTITUTE OF WATER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BEIJING INSTITUTE OF WATER filed Critical BEIJING INSTITUTE OF WATER
Priority to CN201922321444.6U priority Critical patent/CN212153762U/en
Application granted granted Critical
Publication of CN212153762U publication Critical patent/CN212153762U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Examining Or Testing Airtightness (AREA)

Abstract

The utility model relates to a building materials specifically relates to a waterstop. Comprises a water stop belt body, a main connecting channel, an auxiliary connecting pipe and a water inlet pipe; the main connecting pipe is arranged inside the structural area along the axis of the water stop belt body and is divided into a plurality of independent pipe sections which are isolated from each other; the auxiliary connecting pipe is arranged in the water stop belt body, one end of the auxiliary connecting pipe is communicated with the main connecting pipe, and the other end of the auxiliary connecting pipe is provided with a water outlet which is positioned in the waterproof area and is communicated with the outside; the water inlet pipe is arranged outside the water stop belt body, and one end of the water inlet pipe is connected with the main connecting channel. According to the technical scheme, water pressure is applied to the main connecting pipe by the water inlet pipe, and the waterproof effect of the water stop can be judged according to the water pressure reduction condition in the main connecting pipe; meanwhile, the main connecting pipe is divided into a plurality of independent pipe sections, each independent pipe section is connected with the independent water inlet pipe and the auxiliary connecting pipe, and the specific position of leakage can be determined through the pressure change of the specific independent pipe section.

Description

Water stop
Technical Field
The utility model relates to a building materials specifically relates to a waterstop.
Background
The water stop is an anti-leakage device used in the field of construction, and can be subdivided into a water stop (B) for deformation joints according to the purpose; a water stop (S) for a construction joint; a joint water stop (J) with special aging resistance requirement.
The rubber waterstop is mainly used for foundation engineering which is arranged in a construction joint and a deformation joint and integrated with a concrete structure when concrete is cast in place, such as underground facilities, tunnel culverts, water delivery aqueducts, retaining dams, liquid storage structures and the like. The rubber waterstop is partially or completely poured and buried in the concrete pouring process. Before concrete is poured and buried, the interface part of the concrete is kept flat, the joint part is bonded and fastened, then the concrete is poured and tamped fully, and the water stop belt is positioned by shaking the concrete, so that the water stop belt is well combined with the concrete, and the water stop effect is not influenced.
In actual engineering, due to different actual conditions of construction sites, the installation of the waterstop and the concrete pouring quality of two sides of the waterstop are greatly different, so that the waterstop of partial engineering cannot play a good water stopping role, and the phenomena of water seepage and water leakage of an expansion joint sometimes occur.
Among the present engineering, lack and detect expansion joint seepage measure in advance, detect the seepage when later stage engineering carries out water, hydrostatic test, not only influence time limit for a project, extravagant water source, can't accurate judgement seepage waterstop position moreover, can carry out many times even and close water detection, extravagant material resources, financial resources, manpower and time limit for a project.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the waterstop construction installation that prior art exists and accomplishing the back, the problem that the actual stagnant water effect is difficult to inspect immediately provides a waterstop, and this waterstop can be in concrete placement completion back quick test waterstop's stagnant water effect, confirms the seepage position.
In order to achieve the purpose, the utility model provides a water stop, which comprises a water stop body, a main connecting channel, an auxiliary connecting pipe and a water inlet pipe;
the water stop belt body comprises a structural area and waterproof areas positioned on two sides of the structural area;
the main connecting pipe is arranged inside the structural area along the axis of the water stop belt body and is divided into a plurality of independent pipe sections which are isolated from each other;
the auxiliary connecting pipe is arranged in the water stop belt body, one end of the auxiliary connecting pipe is communicated with the main connecting pipe, and the other end of the auxiliary connecting pipe is provided with a water outlet which is positioned in the waterproof area and is communicated with the outside; the auxiliary connecting pipes comprise a plurality of auxiliary connecting pipes, and at least one auxiliary connecting pipe is communicated in each independent pipe section;
the water inlet pipe is arranged outside the water stop belt body, and one end of the water inlet pipe is connected with the main connecting channel; the inlet tube includes a plurality ofly, every independent pipeline section all is connected with the inlet tube.
Preferably, the water stop further comprises a blocking head, and the blocking head is arranged in the main connecting pipe and used for dividing the main connecting pipe into a plurality of pipe areas; the blocking heads are distributed in the main connecting pipe at equal intervals.
Preferably, a partition board is arranged in the main connecting pipe, and the partition board divides the cross section of any position of the main connecting pipe into two independent channels; each independent channel is connected with an independent auxiliary connecting pipe.
Preferably, a plurality of the auxiliary connecting pipes are arranged in the waterproof area on one side of the column connecting pipe at equal intervals along the axial direction of the column connecting pipe, and each auxiliary connecting pipe is connected with one of the independent channels;
the other side of the waterproof area is symmetrically provided with the same auxiliary connecting pipes which are communicated with the other independent channel.
Preferably, each independent channel is communicated with one auxiliary connecting pipe.
Preferably, the water stop further comprises a plurality of exhaust pipes, and one end of each exhaust pipe penetrating through the structural area is communicated with the main connecting pipe; at least one exhaust pipe is connected in each independent pipe section.
Preferably, the exhaust pipe is arranged in the middle of the water stop body and is perpendicular to the water stop body; and one end of the water stop belt body is provided with a screw thread for plugging the water inlet pipe according to the principle of the exhaust pipe.
Preferably, the water inlet pipe is arranged in the middle of the water stop belt body and is perpendicular to the water stop belt body; the one end that the waterstop body was kept away from to the inlet tube is provided with the screw thread and is used for the shutoff the inlet tube.
Preferably, the water outlet is a one-way water outlet allowing the water to flow from the inside to the outside of the auxiliary connection pipe.
Preferably, the one-way water outlet is conical, one side of the bottom surface of the conical one-way water outlet is close to the auxiliary connecting pipe, and one side of the top point of the conical one-way water outlet is communicated with the outside of the water stop belt body.
In the prior art, to test the waterproof effect of the water stop, a pressurizing device needs to be additionally arranged in the area where the water stop is buried in the engineering acceptance stage after construction is completed, a water pressing test is carried out on the water stop area, and the construction period is influenced if the water stop area is unqualified.
According to the technical scheme, the main connecting pipe and the auxiliary connecting pipe are arranged in the water stop body, the water outlet connected to the waterproof area is formed in the auxiliary connecting pipe, water pressure is applied to the main connecting pipe through the water inlet pipe and conducted to the water outlet through the auxiliary connecting pipe, and the waterproof effect of the water stop can be judged according to the water pressure reduction condition in the main connecting pipe; if the water pressure in the main connecting pipe is kept stable, the water stop belt has good waterproof effect and can not seep, and if the water pressure in the main connecting pipe drops rapidly, the liquid in the connecting pipe continuously leaks from the water outlet hole through a gap between the water stop belt and concrete, so that the waterproof effect of the water belt cannot reach the standard. Meanwhile, the main connecting pipe is divided into a plurality of independent pipe sections, each independent pipe section is connected with the independent water inlet pipe and the auxiliary connecting pipe, and the specific position of leakage can be determined through the pressure change of the specific independent pipe section.
Drawings
FIG. 1 is a perspective view of a cut-away portion of the water stop of the present invention;
FIG. 2 is a perspective view of the water stop of the present invention with another portion cut away;
FIG. 3 is a transverse cross-sectional view of the process at the cross-section shown in FIG. 2;
fig. 4 is a longitudinal sectional view of the present invention;
fig. 5 is a cross-sectional view perpendicular to the culvert axis of the water stop of the present invention when used in a circular culvert.
Description of the reference numerals
1-Water stop body 1 a-Water-proof zone
1 b-structural zone 2-water inlet pipe
3-main connecting pipe 4-auxiliary connecting pipe
5-Water Outlet 6-baffle
7-plugging head 8-exhaust pipe
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the terms of orientation such as "upper, lower, left and right" used herein generally refer to the relationship shown in fig. 3, and "inner and outer" refer to the inner and outer relationship of the device itself.
The problem of the seepage position is difficult to confirm simultaneously to be difficult to detect fast after solving the waterstop construction waterstop stagnant water effect. The utility model provides a water stop, which comprises a water stop body 1, a main connecting channel, an auxiliary connecting pipe 4 and a water inlet pipe 2;
the water stop belt body 1 comprises a structural area 1b and waterproof areas 1a positioned on two sides of the structural area 1 b;
the main connecting pipe 3 is arranged inside the structural area 1b along the axis of the water stop body 1, and the main connecting pipe 3 is divided into a plurality of independent pipe sections which are isolated from each other;
the auxiliary connecting pipe 4 is arranged in the water stop body 1, one end of the auxiliary connecting pipe 4 is communicated with the main connecting pipe 3, and the other end of the auxiliary connecting pipe 4 is provided with a water outlet 5 which is positioned in the waterproof area 1a and is communicated with the outside; the auxiliary connecting pipes 4 comprise a plurality of pipes, and at least one auxiliary connecting pipe 4 is communicated in each independent pipe section;
the water inlet pipe 2 is arranged outside the water stop belt body 1, and one end of the water inlet pipe 2 is connected with the main connecting channel; the inlet pipe 2 includes a plurality of, every independent pipeline section all is connected with inlet pipe 2.
The water stop body 1 can be a rubber water stop (R) or a plastic water stop (P) or a metal water stop (M). As shown in fig. 1 to 4, the water stop body 1 includes a structural region 1b and waterproof regions 1a located on both sides of the structural region 1b, which are common structures of existing water stops, the waterproof region 1a is a portion that will be buried in concrete after construction, and the structural region 1b is a portion located between two concretes.
The utility model discloses be provided with main connecting pipe 3 and assist connecting pipe 4 in 1 inside of waterstop body, main connecting pipe 3 can be buried underground at 1 inside single pipeline of waterstop body with assisting connecting pipe 4, and is preferred, when the waterstop material is rubber or plastics, can adopt direct forming's method to form main connecting pipe 3 and assist connecting pipe 4 at 1 inside vacuole formation of waterstop body. Preferably, the water inlet pipe 2 is prevented from being buried in concrete during construction, and the water inlet pipe 2 is arranged in the structural area 1b of the water stop belt body 1; one end of the water inlet pipe 2 is communicated with the main connecting pipe 3, and the other end is communicated with the outside to inject water pressure into the main connecting pipe 3 when in use. In order to facilitate the connection of the main connection pipe 3 to the water inlet pipe 2, the main connection pipe 3 is also disposed in the structural region 1b, preferably the main connection pipe 3 is disposed along the axis of the waterstop body 1, and the main connection pipe 3 is divided into a plurality of independent pipe sections isolated from each other.
In order to test the waterproof effect of waterstop, also be the inseparable degree of combination of test waterstop and concrete, delivery port 5 need set up in waterproof district 1a, so the utility model discloses still communicate main connecting pipe 3 and delivery port 5 including assisting connecting pipe 4. Since the connecting rod is divided into a plurality of independent pipe sections, at least one sub-connecting pipe needs to be connected to each independent pipe section. While each individual section of pipe needs to be connected to a separate water inlet pipe 2 for applying water pressure to the individual section of pipe.
Through above setting, through at the inside main connecting pipe 3 and the supplementary connecting pipe 4 that sets up of waterstop body 1, utilize inlet tube 2 to exert water pressure for main connecting pipe 3, set up delivery port 5 in waterstop body 1's waterproof district 1a, recycle and assist connecting pipe 4 and connect delivery port 5 and main connecting pipe 3. The waterproof effect of the water stop can be judged by judging the change of the water pressure in the main connecting pipe 3. If the water pressure in the main connecting pipe 3 is kept stable, the water-stop belt has good waterproof effect and can not seep, and if the water pressure in the main connecting pipe 3 drops rapidly, the liquid in the connecting pipe continuously leaks from the water outlet hole through a gap between the water-stop belt and concrete, and the waterproof effect of the water belt cannot reach the standard. Set main connecting pipe 3 into a plurality of independent pipeline sections, connect independent inlet tube 2 and supplementary connecting pipe 4 on every pipeline section simultaneously, can realize carrying out the segmentation part test to the waterstop section by section, have the pressure drop of each pipeline section mutually independent accessible again and judge the position that the seepage took place.
Preferably, as shown in fig. 4, the water stop further comprises a blocking head 7, and the blocking head 7 is arranged in the main connecting pipe 3 and is used for dividing the main connecting pipe 3 into a plurality of pipe areas; the plugging heads 7 are distributed in the main connecting pipe 3 at equal intervals. The way of closing the head 7 is only a preferred solution, and the same way can be used for forming different individual pipes directly. The pipe area is also the individual pipe sections described above.
According to the water stop of the utility model, a partition plate 6 is arranged in the main connecting pipe 3, and the partition plate 6 divides the cross section of any one position of the main connecting pipe 3 into two independent channels; each independent channel is connected with an independent auxiliary connecting pipe 4. The partition 6 is preferably provided in a planar configuration such that the partition 6 is parallel to or coincides with the central axis of the main connection pipe 3; it is further preferable to provide the main connection pipe 3 in a circular shape, to have the partition 6 coincide with the axis of the main connection pipe 3 and to make the partition 6 perpendicular to the waterstop body 1, as shown in fig. 3.
Meanwhile, a plurality of the auxiliary connecting pipes 4 are arranged in the waterproof region 1a on one side at equal intervals along the axial direction of the column connecting pipe, and each of the auxiliary connecting pipes 4 is connected with one of the independent channels; the same auxiliary connecting pipes 4 which are communicated with the other independent channel are symmetrically arranged in the waterproof area 1a on the other side, for example, as shown in fig. 2 and fig. 3, the water stop is divided into two symmetrical structures, and the auxiliary connecting pipes 4 in the waterproof areas 1a on the two sides are respectively connected with the respective independent channels, so that the connecting pipes in the waterproof areas 1a on the two sides can work independently without interference. Each independent channel is communicated with one auxiliary connecting pipe 4.
Can test the water-proof effects of this one side after the concrete construction of one side is accomplished through above setting, also can test the water-proof effects of both sides respectively simultaneously in the test, it is not good to have confirmed that the water-stop of which side's water-proof effects is.
According to the water stop of the utility model, the water stop further comprises a plurality of exhaust pipes 8, and the rows pass through the structural area 1b and are communicated with one end and the main connecting pipe 3; at least one exhaust pipe 8 is connected in each independent pipe section. In actual use, the intersection point of the exhaust pipe 8 and the connecting pipe needs to be located at the highest point of the whole connecting pipe during construction, as shown in fig. 5, when a water stop belt is used in a circular culvert in the drawing, the whole water stop belt is processed into a ring shape, the exhaust pipe 8 needs to be placed at the top during construction, liquid is injected into the main connecting pipe 3 from the water inlet pipe 2, gas in the main connecting pipe 3 is discharged through the exhaust pipe 8, when air is emptied to block the exhaust pipe 8, then the pressure is continuously applied into the connecting pipe, whether the water outlet 5 located in the waterproof area 1a is tightly blocked by concrete can be judged through the pressure reduction condition, and therefore the water seepage condition of the waterproof area 1a and the concrete is judged.
Through setting up exhaust pipe 8 can be before 3 injection water pressures main connecting pipes empty inside gas, can prevent that the experiment from taking place danger, the precision of the exhaust gas interference improvement experiment.
Preferably, the exhaust pipe 8 is arranged in the middle of the water stop body 1 and is perpendicular to the water stop body 1; and the exhaust pipe 8 principle one end of the water stop belt body 1 is provided with a screw thread for plugging the water inlet pipe 2. The water inlet pipe 2 is arranged in the middle of the water stop belt body 1 and is perpendicular to the water stop belt body 1; the water stop belt is characterized in that one end, far away from the water stop belt body 1, of the water inlet pipe 2 is provided with a screw thread for plugging the water inlet pipe 2.
The exhaust pipe 8 is arranged in the middle of the water stop belt, so that the exhaust pipe 8 can be prevented from being buried in concrete in construction and failing.
For preventing in the construction, the concrete flows into the connecting pipe from delivery port 5 and influences the measuring accuracy, delivery port 5 is for allowing water to follow the inside outside one-way delivery port of flow direction of connecting pipe, one-way delivery port equidistant distribution is in 1 both sides of waterstop body waterproof district 1a is last. Liquid can flow from the inside of the water stop body 1 to the outside of the water stop body 1 through the water outlet 5. Preferably, the one-way water outlet is conical, one side of the bottom surface of the conical one-way water outlet is close to the connecting pipe, and one side of the top point of the conical one-way water outlet is communicated with the outside of the water stop body 1.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. Including each of the specific features, are combined in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (10)

1. A water stop is characterized by comprising a water stop body (1), a main connecting channel, an auxiliary connecting pipe (4) and a water inlet pipe (2);
the water stop belt body (1) comprises a structural area (1b) and waterproof areas (1a) positioned on two sides of the structural area (1 b);
the main connecting pipe (3) is arranged inside the structural area (1b) along the axis of the water stop belt body (1), and the main connecting pipe (3) is divided into a plurality of independent pipe sections which are isolated from each other;
the auxiliary connecting pipe (4) is arranged in the water stop belt body (1), one end of the auxiliary connecting pipe (4) is communicated with the main connecting pipe (3), and the other end of the auxiliary connecting pipe is provided with a water outlet (5) which is positioned in the waterproof area (1a) and is communicated with the outside; the auxiliary connecting pipes (4) comprise a plurality of pipes, and at least one auxiliary connecting pipe (4) is communicated in each independent pipe section;
the water inlet pipe (2) is arranged outside the water stop belt body (1), and one end of the water inlet pipe (2) is connected with the main connecting channel; the inlet tube (2) includes a plurality ofly, every independent pipeline section all is connected with inlet tube (2).
2. Water stop strip according to claim 1, further comprising a blocking head (7), said blocking head (7) being arranged inside said main connection pipe (3) for dividing said main connection pipe (3) into a plurality of pipe sections;
the blocking heads (7) are distributed in the main connecting pipe (3) at equal intervals.
3. The water stop strip according to claim 2, characterized in that a partition (6) is arranged in the main connecting pipe (3), and the partition (6) divides the cross section of any one position of the main connecting pipe (3) into two independent channels; each independent channel is connected with an independent auxiliary connecting pipe (4).
4. A waterstop according to claim 3, characterized in that a plurality of the auxiliary connection pipes (4) are arranged in the waterproof region (1a) on one side thereof at equal intervals in the axial direction of the main connection pipe (3), and each of the auxiliary connection pipes (4) is connected to one of the independent passages;
the same auxiliary connecting pipes (4) which are communicated with the other independent channel are symmetrically arranged in the waterproof area (1a) on the other side.
5. Water stop strip according to claim 4, characterized in that each of said independent channels communicates with one of said secondary connection pipes (4).
6. Water stop according to claim 1, characterized in that it further comprises a plurality of air discharge pipes (8) communicating at one end with the main connection pipe (3) through the structural zone (1 b);
at least one exhaust pipe (8) is connected in each independent pipe section.
7. The water stop according to claim 6, characterized in that the exhaust pipe (8) is arranged in the middle of the water stop body (1) and perpendicular to the water stop body (1);
and the exhaust pipe (8) principle is adopted, and one end of the water stop belt body (1) is provided with a screw thread for plugging the water inlet pipe (2).
8. The water stop according to claim 1, wherein the water inlet pipe (2) is arranged in the middle of the water stop body (1) and perpendicular to the water stop body (1);
the water stop is characterized in that one end, far away from the water stop body (1), of the water inlet pipe (2) is provided with a screw thread for plugging the water inlet pipe (2).
9. Water stop strip according to claim 1, characterised in that said outlet (5) is a one-way outlet allowing the passage of water from the inside to the outside of said secondary connection tube (4).
10. The water stop according to claim 9, wherein the one-way water outlet is conical, one side of the bottom surface of the conical one-way water outlet is close to the auxiliary connecting pipe (4), and one side of the vertex is communicated with the outside of the water stop body (1).
CN201922321444.6U 2019-12-20 2019-12-20 Water stop Active CN212153762U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922321444.6U CN212153762U (en) 2019-12-20 2019-12-20 Water stop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922321444.6U CN212153762U (en) 2019-12-20 2019-12-20 Water stop

Publications (1)

Publication Number Publication Date
CN212153762U true CN212153762U (en) 2020-12-15

Family

ID=73704234

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922321444.6U Active CN212153762U (en) 2019-12-20 2019-12-20 Water stop

Country Status (1)

Country Link
CN (1) CN212153762U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113513343A (en) * 2021-05-07 2021-10-19 石家庄铁道大学 Detection method of rubber water stop
CN114960749A (en) * 2022-06-21 2022-08-30 华设设计集团股份有限公司 Underwater tunnel deformation joint built-in detachable water stop and real-time monitoring method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113513343A (en) * 2021-05-07 2021-10-19 石家庄铁道大学 Detection method of rubber water stop
CN113513343B (en) * 2021-05-07 2022-10-14 石家庄铁道大学 Detection method of rubber water stop
CN114960749A (en) * 2022-06-21 2022-08-30 华设设计集团股份有限公司 Underwater tunnel deformation joint built-in detachable water stop and real-time monitoring method

Similar Documents

Publication Publication Date Title
CN212153762U (en) Water stop
CN211690834U (en) Water stop
SK280036B6 (en) Process and device for erecting concrete walls by means of braced shutterings
CN111424613B (en) Method for treating through cracks of roller compacted concrete dam
CN112282214A (en) Prefabricated FRP (fiber reinforced plastic) pipe-concrete-steel pipe combined column and construction method thereof
CN213418235U (en) Prefabricated assembled FRP pipe-concrete-steel pipe combination column
CN110017166A (en) The storehouse internal drainage device and construction method of rich water hole section concrete lining cutting
CN107830291B (en) Converging connection box and mounting and application process thereof
CN112504943A (en) In-situ test device and method for measuring waterproof performance of construction joint water stop
CN214573969U (en) Tube-pulling type pre-embedding device for grouting of dam concrete joint
CN214277818U (en) Survey construction joint waterstop waterproof performance's normal position test device
KR101396514B1 (en) Coupling structure of leading pipe for underwater prefabricating intake tower
CN210141963U (en) Drainage pipe water filling test device
CN114370275A (en) Bedrock bolting-grouting impervious supporting structure and construction method thereof
CN112879041A (en) Construction method for treating diseases of main structure of subway
CN113737803B (en) Grouting construction method for post grouting of cast-in-place pile
CN109162729B (en) Multi-opening multi-pipe-section type large-section tunnel, construction method, pipe section connecting structure and connecting method
CN111005326A (en) Concrete pipe culvert
CN105927214B (en) Method for accurately measuring gas pressure of original coal seam
CN214836406U (en) Synchronous slip casting reinforcing means of assembled tunnel structure
CN220644259U (en) Bidirectional grouting device for repairing defects of concrete diaphragm wall
CN218522693U (en) Drainage and water stop process pipe for civil construction
CN220134874U (en) Grouting pipe
CN219316961U (en) Water-stop grouting pipeline structure of intersecting structure
CN220647051U (en) Filling roadbed water delivery pipeline structure

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant