CN220352906U - Waterproof performance testing device for prefabricated underground continuous wall - Google Patents

Waterproof performance testing device for prefabricated underground continuous wall Download PDF

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Publication number
CN220352906U
CN220352906U CN202321607587.3U CN202321607587U CN220352906U CN 220352906 U CN220352906 U CN 220352906U CN 202321607587 U CN202321607587 U CN 202321607587U CN 220352906 U CN220352906 U CN 220352906U
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China
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prefabricated
wall
waterproof performance
base body
performance testing
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CN202321607587.3U
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卢小龙
曾广锡
莫松林
陈豪
李铮
李檀
罗威力
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Guangzhou University
China Railway First Engineering Group Co Ltd
China Railway First Engineering Group Guangzhou Construction Engineering Co Ltd
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Guangzhou University
China Railway First Engineering Group Co Ltd
China Railway First Engineering Group Guangzhou Construction Engineering Co Ltd
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Abstract

The utility model relates to a prefabricated ground even wall waterproof performance testing arrangement, it includes the installation base member and is used for fixing the connecting piece on prefabricated ground even wall, set up the inlet opening that water supply pump device connects and the detection hole that water supply pressure detection device connects on the installation base member, still set up on the installation base member with connecting piece complex connecting hole. The waterproof performance of joint gap department to prefabricated diaphragm wall carries out the whole test in order to reduce the effect that the test is consuming time and test flow.

Description

Waterproof performance testing device for prefabricated underground continuous wall
Technical Field
The application relates to the field of building material waterproof performance testing devices, in particular to a prefabricated underground continuous wall waterproof performance testing device.
Background
At present, the foundation construction develops rapidly, and the diaphragm wall is a preferable structural form of foundation pit supporting facilities, wherein a deep groove is dug on the ground by utilizing groove digging equipment, the deep groove is divided into a plurality of groove sections, a diaphragm wall unit is formed in the groove sections in a placing or pouring mode, and the diaphragm wall units are connected together to form the diaphragm wall. The existing underground continuous wall can be roughly divided into a cast-in-situ underground continuous wall and a prefabricated underground continuous wall, the construction period of the prefabricated underground continuous wall is short, the occupied area during construction is small, and the economic benefit is high, so that the prefabricated underground continuous wall is widely applied in the field of building construction. However, the underground wall belongs to an underground structure, the problem of water seepage and water leakage caused by the fact that the waterproof performance of the structure does not reach the standard when the underground wall is contacted with underground water is solved, the problem of leakage of the underground wall is mainly caused by leakage at the joint of the underground wall, and therefore the waterproof performance of the joint of the prefabricated underground wall needs to reach the standard, and the waterproof performance test of the prefabricated underground wall, particularly the waterproof performance test of the joint, is particularly important. The waterproof performance test of the joint gap of the prefabricated underground continuous wall by the test device in the related art is a sectional test, the integrity test of the joint gap between the two prefabricated underground continuous walls cannot be carried out, the test process is long in time consumption, and the test cost is high.
With respect to the related art described above, the inventors consider that it is difficult to perform an overall test for the waterproof performance test at the joint slits of the prefabricated wall.
Disclosure of Invention
In order to solve the problem that the waterproof performance test of the joint gap of the prefabricated underground continuous wall is difficult to carry out overall test, the application provides a waterproof performance test device for the prefabricated underground continuous wall, which is used for carrying out overall test on the waterproof performance of the joint gap of the prefabricated underground continuous wall.
The technical scheme adopted by the application is as follows:
the utility model provides a prefabricated wall waterproof performance testing arrangement even, includes the installation base member and is used for fixing the connecting piece on prefabricated wall even, set up the inlet opening that water supply pump device connects and the detection hole that water supply pressure detection device connects on the installation base member, still set up on the installation base member with connecting piece complex connecting hole.
By adopting the technical scheme, the installation matrix is installed on the prefabricated ground connecting wall through the matching of the connecting piece and the connecting hole, the water inlet hole and the detecting hole on the installation matrix are connected with the water pump device and the water pressure detecting device, the water pump continuously injects water into the gap, and the water at the gap of the prefabricated ground connecting wall joint with the water-proof performance reaching the standard cannot overflow the space at the gap of the prefabricated ground connecting wall joint, so that the water can be converged to raise the pressure value detected by the water pressure meter; on the contrary, the water at the joint gap of the prefabricated wall, which is not up to the standard in waterproof performance, overflows from the inexact position of the joint, and the pressure value detected by the water pressure meter is not larger than the value detected by the joint gap of the prefabricated wall, which is up to the standard in waterproof performance, so that the waterproof performance of the prefabricated wall can be deduced.
Optionally, a sealing device is arranged on one surface of the installation base body, and the sealing device is arranged on the periphery of the detection hole and the water inlet hole.
By adopting the technical scheme, the sealing device surrounds the water inlet hole and the detection hole, and when water flows to the side of the prefabricated underground diaphragm wall, on which the testing device is arranged, the water cannot overflow the sealing device.
Optionally, the sealing device includes installing frame and rubber strip, the installing frame includes four horizontal frames, and is adjacent horizontal frame end to end and mutually perpendicular form rectangular, and every horizontal frame's head butt in adjacent horizontal frame's afterbody lateral wall, every horizontal frame's afterbody all is equipped with the opening along length direction, the rubber strip follow opening sliding connection in the horizontal frame.
Through adopting above-mentioned technical scheme, when installing the installation base member to prefabricating the wall that links, the rubber strip can link the wall contact with prefabricating the wall, when moving the direction of linking the wall in the past prefabricating the installation base member, the rubber strip can be extruded and take place deformation, causes rubber strip and prefabricating the wall in close contact with that links, and the limit water overflows from prefabricating the wall that links the wall and installs testing arrangement this side.
Optionally, the horizontal frame bottom surface is equipped with the constant head tank along length direction, one side of rubber strip along length direction be provided with constant head tank complex connecting strip.
Through adopting above-mentioned technical scheme, the connecting strip of rubber strip one side can be with the constant head tank cooperation in the horizontal frame so that the rubber strip can with horizontal frame sliding connection in order to change the rubber strip.
Optionally, the number of the water inlet holes on the installation base body is not less than one, the detection holes are located between the water inlet holes, and when the installation base body is installed on the prefabricated ground connecting wall, the detection holes and the water inlet holes are opposite to gaps between the prefabricated ground connecting walls.
Through adopting above-mentioned technical scheme, the detection hole is located between the inlet port, when the water pump is toward prefabricated wall joint gap department pump water, when the water source is toward the gap internal flow, the position that water pressure detection device detected is in the middle of the rivers, prefabricated wall joint gap bears water pressure evenly in the middle department, it is even to be close to prefabricated wall joint when the underground whole bear the hydraulic condition, the degree of accuracy of test has been improved, and detection hole and inlet port just have reduced the water pump toward prefabricated wall joint gap department pump water's probability outside.
Optionally, the connecting piece on the prefabricated ground is connected on the wall includes bolt, bolt base and nut, the bolt is fixed to be set up on the bolt base, the bolt base is used for fixing on the prefabricated ground is connected on the wall, the bolt length is greater than the coupling hole the degree of depth with the thickness sum of nut, the installation base member passes through the coupling hole with the nut is installed on the prefabricated ground is connected on the wall.
Through adopting above-mentioned technical scheme, when the installation base member is installed on prefabricated ground and is linked the wall, the connecting hole that the bolt runs through the installation base member uses nut cooperation bolt to fix the installation base member on prefabricated ground and is linked the wall, makes the installation base member installation more firm through twisting the nut.
Optionally, a hanging ring is arranged on one side, far away from the sealing device, of the mounting base body, and the hanging ring is rotationally connected with the mounting base body.
Through adopting above-mentioned technical scheme, when the weight ratio of installation base member is great, use crane or other hoisting equipment to hang the installation base member through rings, be convenient for install the installation base member on prefabricated ground and link the wall.
Optionally, one side of the installation base body far away from the sealing device is further provided with a rotating connecting piece, the rotating connecting piece is fixedly connected with the installation base body, and the hanging ring is rotationally connected with the rotating connecting piece.
Through adopting above-mentioned technical scheme, when the waterproof performance test of prefabricating the diaphragm wall is needed, can collude rings so that to the installation of installation base member, when the installation base member is not in test state, rings can put down, reduce the hindrance at the installation base member in-process of transport.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the waterproof performance of the joint gap of the prefabricated diaphragm wall can be integrally tested.
2. The waterproof performance test flow for the joint gap of the prefabricated underground diaphragm wall is simple and time-consuming.
Drawings
Fig. 1 is a schematic structural view of a prefabricated wall-connecting waterproof performance testing device according to an embodiment of the present application when the prefabricated wall-connecting waterproof performance testing device is mounted on a prefabricated wall.
Fig. 2 is a schematic diagram of the overall structure of the prefabricated wall-connected waterproof performance testing device according to the embodiment of the application.
Fig. 3 is a schematic structural view of a sealing device in an embodiment of the present application.
Fig. 4 is an enlarged view of the structure at a in fig. 3.
Fig. 5 is a schematic structural view of a suspension ring according to an embodiment of the present application.
Fig. 6 is an enlarged view of the structure at B in fig. 5.
Fig. 7 is a schematic structural view of a connector according to an embodiment of the present application.
Fig. 8 is an enlarged view of the structure at C in fig. 7.
Reference numerals illustrate: 1. a mounting substrate; 10. a connection hole; 11. a water inlet hole; 12. a detection hole; 2. a connecting piece; 21. a bolt; 22. a bolt base; 23. a nut; 3. a sealing device; 31. a mounting frame; 311. a transverse frame; 3111. a positioning groove; 32. a rubber strip; 321. a connecting strip; 4. rotating the connecting piece; 41. a hanging ring; 411. a circular ring; 42. a connecting rod; 421. a mounting base; 5. prefabricating the ground connecting wall.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses a prefabricated wall waterproof performance testing arrangement even. Referring to fig. 1, a prefabricated diaphragm wall waterproof performance testing device includes a mounting base 1 and a connecting member 2 for fixing on a prefabricated diaphragm wall 5, a water inlet 11 connected with a water supply pump device, a detection hole 12 connected with a water supply pressure detection device and a connecting hole 10 matched with the connecting member 2 are provided on the mounting base 1, the water inlet 11, the detection hole 12 and the connecting hole 10 are all penetrated in the thickness direction of the mounting base 1, in this embodiment, the mounting base 1 is a cuboid, two water inlets 11 are provided, one detection hole 12 is provided and the detection hole 12 is located between the water inlets 11, the distance between adjacent detection holes 12 and the water inlet 11 is equal, the detection hole 12 and the water inlet 11 are located on the middle line of the mounting base 1 along the length direction, and the connecting hole 10 is provided on two sides of one side of the mounting base 1 with the middle line of the mounting base 1 along the length direction as a symmetrical axis.
Referring to fig. 2 and 3, when the water pressure of pumping water to the joint gap of the prefabricated ground connecting wall 5 using a water pump is relatively large, there is a possibility that water overflows from the joint gap on the side where the test device is mounted to the prefabricated ground connecting wall 5, in order to improve this, the sealing device 3 is mounted on one side of the mounting base 1, and the sealing device 3 is mounted on the periphery of the detection hole 12 and the water inlet hole 11 so as to surround the detection hole 12 and the water inlet hole 11, since the sealing device 3 surrounds the detection hole 12 and the water inlet hole 11, the sealing device 3 includes the mounting frame 31 and the rubber strip 32, the mounting frame 31 includes four cross frames 311, in this embodiment, the outer contour of each cross frame 311 is rectangular, the tail of each cross frame 311 is provided with an opening in the length direction, then each cross frame 311 forms an open end and a closed end, the four cross frames 311 are connected to form a rectangular shape, the adjacent cross frames 311 are perpendicular to each other, each other is one side of the rectangular shape, the open end of each cross frame 311 and the closed end of each cross frame 311 is connected to the adjacent cross frame 311, and the open ends of the adjacent cross frames 311 are not perpendicular to each other, and the open ends of the adjacent cross frames are perpendicular to each other.
Referring to fig. 3 and 4, a positioning groove 3111 is formed on the bottom surface of each horizontal frame 311 along the length direction, a rubber strip 32 is mounted on the positioning groove 3111 of each horizontal frame 311, the thickness of the rubber strip 32 is greater than the height of the horizontal frame 311, a connecting strip 321 is formed on one side of the rubber strip 32 along the length direction, the connecting strip 321 is matched with the positioning groove 3111 so that the rubber strip 32 can be slidingly connected with the positioning groove 3111, when the rubber strip 32 is aged and cannot be in close contact with the prefabricated diaphragm wall 5, the aged rubber strip 32 can be taken out from the opening of the horizontal frame 311, and a new rubber strip 32 is mounted in the horizontal frame 311 from the opening.
Therefore, when the installation base 1 is installed on the prefabricated diaphragm wall 5, since the thickness of the rubber strip 32 is greater than the height of the transverse frame 311 and the rubber strip 32 is made of elastic materials, the rubber strip 32 can be in contact with the prefabricated diaphragm wall 5, when the installation base 1 is locked by the connecting piece 2, the rubber strip 32 can be extruded to deform, so that the rubber strip 32 is in close contact with the prefabricated diaphragm wall 5, when the water pump pumps water to the joint gap of the prefabricated diaphragm wall 5, and when the water flows to the side of the prefabricated diaphragm wall 5 where the testing device is installed, the rubber strip 32 is in close contact with the prefabricated diaphragm wall 5, so that the water cannot overflow from the side of the prefabricated diaphragm wall 5 where the testing device is installed.
Referring to fig. 5 and 6, a rotating connecting piece 4 is further disposed on one side of the mounting base 1 far away from the sealing device 3, in this embodiment, two rotating connecting pieces 4 are installed on the mounting base 1, the rotating connecting pieces 4 are connecting rods 42, two ends of each connecting rod 42 are fixedly connected with mounting bases 421, the mounting bases 421 are fixed on the mounting base 1, each connecting rod 42 is rotatably connected with a hanging ring 41, a ring 411 is connected to a port of each hanging ring 41, and the rings 411 are sleeved on the connecting rods 42.
Referring to fig. 7 and 8, the connector 2 on the prefabricated diaphragm wall 5 includes a bolt 21, a bolt 21 base and a nut 23, the bolt 21 base is fixedly installed on the prefabricated diaphragm wall 5, the bolt 21 is fixedly installed on the bolt 21 base, the bolt 21 base and the bolt 21 are fixedly connected into a whole, the length of the bolt 21 is greater than the sum of the depth of the connecting hole 10 on the installation base 1 and the thickness of the nut 23, when the installation base 1 is installed on the prefabricated diaphragm wall 5, the bolt 21 penetrates through the connecting hole 10 of the installation base 1, and the installation base 1 is fixed on the prefabricated diaphragm wall 5 by using the nut 23 in cooperation with the bolt 21; when the waterproof performance test of the prefabricated wall 5 is not performed, the nuts 23 are screwed on the bolts 21 to prevent the nuts 23 from being lost.
The implementation principle of the prefabricated underground continuous wall waterproof performance testing device provided by the embodiment of the application is as follows:
before the prefabricated wall 5 is tested by using the device for testing the waterproof performance of the prefabricated wall disclosed by the embodiment of the application, the built two prefabricated walls 5 are spliced by a connecting method which is placed underground when the field construction is simulated, the connecting pieces 2 matched with the connecting holes 10 are arranged on the two prefabricated walls 5, and the connecting pieces 2 positioned on the two prefabricated walls 5 are symmetrically arranged by taking joint gaps of the two prefabricated walls 5 as symmetry axes. In the embodiment, the water pressure detection device adopts a water pressure gauge with model Y100 of Fuyang Hua Yi, and the water pressure range of the water pump water is 0.12-0.3Mpa.
Before the waterproof performance test of the prefabricated underground diaphragm wall 5 is started, the nuts 23 screwed on the bolts 21 are taken down, the hanging rings 41 on the installation base body 1 are buckled by using a crane or other lifting equipment to be conveyed to the vicinity of the prefabricated underground diaphragm wall 5, after the connecting holes 10 on the installation base body 1 are aligned with the bolts 21, the installation base body 1 is moved towards the direction of the prefabricated underground diaphragm wall 5, then the installation base body 1 is fixedly locked by using the nuts 23, at the moment, as the detection holes 12 and the water inlet holes 11 are positioned on the central line of the installation base body 1 along the length direction, the detection holes 12 and the water inlet holes 11 are just right opposite to joint gaps of the two prefabricated underground diaphragm walls 5, and the rubber strips 32 on the installation base body 1 are extruded and closely contacted with the prefabricated underground diaphragm wall 5, so that the water pressure gauge and the water pipe are respectively connected with the detection holes 12 and the water inlet holes 11;
starting a water pump, wherein the water pump pumps water to the joint gap of the prefabricated diaphragm wall 5, and the water at the joint gap of the prefabricated diaphragm wall 5 with the water-proof performance reaching the standard cannot overflow the joint gap of the prefabricated diaphragm wall 5, so that the water can be converged to raise the pressure value detected by the water pressure meter; on the contrary, the water at the joint gap of the prefabricated underground continuous wall 5 with the waterproof performance not reaching the standard overflows from the inexact position of the joint, the pressure value detected by the water pressure meter is not larger than the value detected by the joint gap of the prefabricated underground continuous wall 5 with the waterproof performance reaching the standard, and the water pressure of the water pump can be adjusted to simulate the condition of the underground continuous wall under different pressures, so that the waterproof performance of the prefabricated underground continuous wall 5 can be deduced.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A prefabricated wall waterproof performance testing arrangement even, its characterized in that: the water supply device comprises a mounting base body (1) and a connecting piece (2) used for being fixed on a prefabricated ground continuous wall (5), wherein a water inlet hole (11) connected with a water supply pump device and a detection hole (12) connected with a water supply pressure detection device are formed in the mounting base body (1), and a connecting hole (10) matched with the connecting piece (2) is formed in the mounting base body (1).
2. The prefabricated wall-connected waterproof performance testing device according to claim 1, wherein: one surface of the installation base body (1) is provided with a sealing device (3), and the sealing device (3) is arranged at the periphery of the detection hole (12) and the water inlet hole (11).
3. The prefabricated wall-connected waterproof performance testing device according to claim 2, wherein: sealing device (3) are including installing frame (31) and rubber strip (32), installing frame (31) are including four horizontal frame (311), and is adjacent horizontal frame (311) head and the tail link to each other and mutually perpendicular form rectangular, and every the head butt of horizontal frame (311) is adjacent the afterbody lateral wall of horizontal frame (311), every the afterbody of horizontal frame (311) all is equipped with the opening along length direction, rubber strip (32) follow opening sliding connection in horizontal frame (311).
4. A prefabricated wall waterproofing performance testing device according to claim 3, wherein: the bottom surface of the transverse frame (311) is provided with a positioning groove (3111) along the length direction, and one side of the rubber strip (32) is provided with a connecting strip (321) matched with the positioning groove (3111) along the length direction.
5. The prefabricated wall-connected waterproof performance testing device according to claim 1, wherein: the water inlet holes (11) on the installation base body (1) are not less than one, the detection holes (12) are positioned between the water inlet holes (11), and when the installation base body (1) is installed on the prefabricated underground continuous wall (5), the detection holes (12) and the water inlet holes (11) are opposite to gaps between the prefabricated underground continuous wall (5).
6. The prefabricated wall-connected waterproof performance testing device according to claim 1, wherein: connecting piece (2) on prefabricated diaphragm wall (5) include bolt (21), bolt (21) base and nut (23), bolt (21) are fixed to be set up on the bolt (21) base, bolt (21) base is used for fixing on prefabricated diaphragm wall (5), the length of bolt (21) is greater than the depth of connecting hole (10) with the thickness sum of nut (23), install base member (1) pass through connecting hole (10) with nut (23) are installed on prefabricated diaphragm wall (5).
7. The prefabricated wall-connected waterproof performance testing device according to claim 2, wherein: one side of the mounting base body (1) far away from the sealing device (3) is provided with a hanging ring (41), and the hanging ring (41) is rotationally connected with the mounting base body (1).
8. The prefabricated wall-connected waterproof performance testing device according to claim 7, wherein: one side of the installation base body (1) far away from the sealing device (3) is provided with a rotary connecting piece (4), the rotary connecting piece (4) is fixedly connected with the installation base body (1), and the hanging ring (41) is rotationally connected with the rotary connecting piece (4).
CN202321607587.3U 2023-06-21 2023-06-21 Waterproof performance testing device for prefabricated underground continuous wall Active CN220352906U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321607587.3U CN220352906U (en) 2023-06-21 2023-06-21 Waterproof performance testing device for prefabricated underground continuous wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321607587.3U CN220352906U (en) 2023-06-21 2023-06-21 Waterproof performance testing device for prefabricated underground continuous wall

Publications (1)

Publication Number Publication Date
CN220352906U true CN220352906U (en) 2024-01-16

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ID=89503760

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321607587.3U Active CN220352906U (en) 2023-06-21 2023-06-21 Waterproof performance testing device for prefabricated underground continuous wall

Country Status (1)

Country Link
CN (1) CN220352906U (en)

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