Anti-penetration performance testing device for waterproof membrane

A test device and waterproof membrane technology, which is applied in the direction of measurement device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problem of not being able to detect the real performance of waterproof membrane, and achieve the effect of ensuring long-lasting simulation

Inactive Publication Date: 2009-10-28
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing waterproof membrane detection device cannot detect the true performance of the waterproof membrane during service

Method used

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  • Anti-penetration performance testing device for waterproof membrane
  • Anti-penetration performance testing device for waterproof membrane
  • Anti-penetration performance testing device for waterproof membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] figure 1 , 2 , 3 shows, a kind of specific implementation of this example is, a kind of waterproof membrane impermeability test device, its composition is:

[0052] The square groove 8 with a convex edge 8A on the top is filled with a concrete block 12 flush with the top of the square groove 8, and the top of the square groove 8 is covered with a waterproof membrane 9 to be tested;

[0053] The top of the square groove 8 is provided with a top cover 3 adapted to the square groove 8, and the concave groove on the lower surface of the top cover 3 is filled with high-elastic foam 14; there is a pressing plate 2 on the top cover 3, and the fastening buckle 1 connects the pressing plate 2 to the top. The cover 3 is fastened on the front and rear convex edges 8A of the top of the square groove 8; the pressure bolt 4 penetrating through the pressure plate 2 is installed in the middle of the pressure plate 2;

[0054] The top cover 3 has a water inlet hole 3A connected to the...

Embodiment 2

[0078] Figure 4 , 5 , 6 shows, a kind of specific implementation of this example is, a kind of waterproof membrane impermeability test device, its composition is:

[0079] The square groove 8 with a convex edge 8A on the top is filled with a concrete block 12 flush with the top of the square groove 8, and the top of the square groove 8 is covered with a waterproof membrane 9 to be tested;

[0080] The top of the square groove 8 is provided with a concave top cover 3 adapted to the square groove 8, and the concave groove on the lower surface of the top cover 3 is filled with high elastic foam 14; Fasten with the top cover 3 on the front and rear convex edges 8A of the top of the square groove 18; the middle of the pressure plate 2 is installed with a pressure bolt 4 vertically penetrating the pressure plate 2;

[0081] The top cover 3 has a water inlet hole 3A connected to the pressure stabilizing liquid storage device 30; the water pressure gauge 32 is installed on the wate...

Embodiment 3

[0090] Figure 7 , 8 , 9 shows, a kind of specific implementation of this example is: a kind of waterproof film anti-penetration performance test device, its composition is:

[0091] The square groove 8 with convex edge 8A on the top is filled with upper and lower layers of concrete blocks. The upper layer of concrete block 12 is composed of left block and right block 12A, 12B. The lower layer of concrete block 12C and the upper layer of concrete block 12 are cushioned with high elastic Foam 12E, high-density non-woven fabric 12D is also padded between the right block 12B of the upper concrete block and the high-elastic foam 12E, and the waterproof membrane 9 to be tested is covered on the top of the upper concrete block 12 and the convex edge 8A of the square groove 8;

[0092] The top of the square groove 8 is provided with a top cover 3 adapted to the square groove 8, and the concave groove on the lower surface of the top cover 3 is filled with the left block 13A and the r...

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Abstract

The invention relates to an anti-penetration performance testing device for a waterproof membrane, with a structure as follows: the waterproof membrane is arranged between a square groove with a raised edge at the top and a top cover; the square groove is filled with concrete blocks; the top cover is provided with a water inlet hole connected with a pressure stabilizing and liquid storing device; a water pressure gauge is arranged on a water pressure gauge mounting hole on the top cover; the bottom of the square groove is provided with a water outlet hole; and a water absorbing material is arranged between the water outlet hole and the concrete blocks. A pressurizing bolt of a hold-down plate on the top cover pressurizes the waterproof membrane; or the right side of the top of the square groove is fixedly provided with a bracket with a convex plate and a mobile hold-down strip with a screw rod, and a stretching nut on the screw rod realizes the stretching of the waterproof membrane; or the concrete blocks in the square groove are divided into a left concrete block and a right concrete block; and the height difference of the left concrete block and the right concrete block is utilized to apply shearing effect to the waterproof membrane. The device can more accurately test the anti-penetration performance of the waterproof membrane in an actual working environment, thereby providing correct scientific evidence for the wear performance of waterproof membranes of tunnel and underground projects and ensuring the long-term safe operation of the tunnel and underground projects.

Description

technical field [0001] The invention relates to a device for testing the anti-permeation performance of a simulated waterproof membrane under stress. Background technique [0002] In basic engineering facilities such as tunnels and other underground projects, the requirements for anti-leakage water are very high. And because the project life is generally 50 to 100 years, higher requirements are put forward for the durability of the waterproof membrane. However, once there is a problem with the waterproofing of tunnels or underground projects, it is difficult to repair, which puts forward high requirements on the impermeability of the waterproof membrane. [0003] In the practice of foundation engineering, the waterproof membrane is not only affected by water pressure during service, but also by external forces such as covering structure, uneven deformation of surrounding rock structure, foundation settlement, and construction extrusion. These external forces can be attribu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
Inventor 刘东民杨其新盛草樱蒋雅君常炳阳
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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