CN109443940B - Method and system for detecting waterproof failure path under condition of opening elastic sealing gasket - Google Patents
Method and system for detecting waterproof failure path under condition of opening elastic sealing gasket Download PDFInfo
- Publication number
- CN109443940B CN109443940B CN201811200771.XA CN201811200771A CN109443940B CN 109443940 B CN109443940 B CN 109443940B CN 201811200771 A CN201811200771 A CN 201811200771A CN 109443940 B CN109443940 B CN 109443940B
- Authority
- CN
- China
- Prior art keywords
- water pressure
- sealing gasket
- elastic sealing
- water
- pressure channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a method and a system for detecting a waterproof failure path under the condition that an elastic sealing gasket is opened. Therefore, subsequent waterproof design can be pertinently and effectively guided, the waterproof weak area is strengthened, and finally, water leakage is expected to be achieved in the engineering, so that theoretical basis is provided for the subsequent improvement of the waterproof design of the shield tunnel.
Description
Technical Field
The invention relates to a method and a system for detecting a waterproof failure path under the condition that an elastic sealing gasket is opened.
Background
At the present stage, test methods for simulating the waterproof performance of the elastic sealing gasket are very mature, the test methods comprise a conventional straight seam test method and a T-shaped seam test method, a full-automatic three-way loading waterproof performance test system can be further developed on the conventional test method, and a plurality of groups of sealing gasket assembly force and straight seam and T-shaped seam waterproof performance tests are performed by applying the elastic sealing gasket and the concrete test piece which are 1:1 in the actual engineering. The waterproof performance of the elastic sealing gasket can be well verified through the test device and the test method, the maximum waterproof pressure of the elastic sealing gasket under different stretching amounts can be intuitively obtained, however, the elastic sealing gasket is in a closed environment in the test, so that a waterproof failure path of the elastic sealing gasket under the water pressure is difficult to obtain, and the test method at the present stage cannot be disclosed and explained as to whether the waterproof failure position of the elastic sealing gasket is between the elastic sealing gasket and the concrete.
Disclosure of Invention
The invention aims to provide a method and a system for detecting a waterproof failure path under the condition that an elastic sealing gasket is opened, which can solve the problems that the waterproof failure path of the elastic sealing gasket under the water pressure is difficult to obtain because the elastic sealing gasket is in a closed environment in a test, and the existing test method cannot be disclosed and explained for whether the waterproof failure position of the elastic sealing gasket occurs between the elastic sealing gasket or between the elastic sealing gasket and concrete.
In order to solve the above problems, the present invention provides a method for detecting a waterproof failure path when an elastic sealing gasket is opened, comprising:
put into the comparison test device A with two elastic sealing gasket a that wait to detect, wherein, every elastic sealing gasket a includes two bullet nature sealing gaskets that relative up-down set up, it includes to compare test device A: the testing device comprises two concrete blocks which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks, a water pressure channel and two elastic sealing gaskets a are arranged in the gap, each elastic sealing gasket a is used for respectively blocking one opening end of the water pressure channel, the water pressure channel is communicated with a water pressure device arranged outside the testing device A, the water pressure device is used for conveying water into the water pressure channel by applying water pressure, two ends of each concrete block which are oppositely arranged up and down are respectively provided with an adjustable split bolt which is used for adjusting the opening amount of each elastic sealing gasket a, wherein the upper bullet sealing gasket and the lower bullet sealing gasket of each elastic sealing gasket a are in contact, and the upper bullet sealing gasket and the lower bullet sealing gasket are in contact with one concrete block;
adjusting the opening amount of each elastic sealing gasket a to be detected to a first preset opening amount h through the adjustable split bolt, applying water pressure to the water pressure channel through the water pressure device until the water leakage condition exists at the opening end side of each elastic sealing gasket a to be detected, which is far away from the water pressure channel, is found, namely the waterproof failure of each elastic sealing gasket a to be detected occurs, and recording the water pressure Pa applied to the water pressure channel by the water pressure device at the moment;
put into the comparison test device B with elastic sealing gasket B, wherein, every elastic sealing gasket B is the elastic sealing gasket that a body was made, and every elastic sealing gasket B's structure, shape are the same with the structure, the shape of an elastic sealing gasket a, compare test device B's structure, shape with compare test device A's structure, shape are the same, it includes to compare test device B: the testing device comprises two concrete blocks which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks, a water pressure channel and two elastic sealing gaskets B are arranged in the gap, each elastic sealing gasket B is used for respectively blocking one opening end of the water pressure channel, the water pressure channel is communicated with a water pressure device arranged outside a testing device B, the water pressure device is used for conveying water into the water pressure channel by applying water pressure, two ends of each concrete block which are oppositely arranged up and down are respectively provided with an adjustable split bolt which is used for adjusting the opening amount of each elastic sealing gasket B, and the upper part and the lower part of each elastic sealing gasket B are respectively contacted with one concrete block;
adjusting the opening amount of each elastic sealing gasket b to the first preset opening amount h through the adjustable split bolt, applying water pressure into the water pressure channel through the water pressure device until the water leakage condition exists at the opening end side of each elastic sealing gasket b to be detected, which is far away from the water pressure channel, is found, namely the waterproof failure of each elastic sealing gasket b occurs, and recording the water pressure Pb applied into the water pressure channel by the water pressure device at the moment;
the recorded water pressure Pa and water pressure Pb are compared, and a waterproof failure path of the elastic seal gasket a in the opened condition is determined according to the comparison result.
Further, in the above method, the recorded water pressure Pa and the water pressure Pb are compared, and a waterproof failure path of the elastic packing a in the opened condition is determined based on the comparison result, including:
when Pa < Pb, the waterproof failure path of the elastic sealing gasket a under the condition of opening is determined as follows: water seeps out between the two bullet-shaped gaskets.
Further, in the above method, the recorded water pressure Pa and the water pressure Pb are compared, and a waterproof failure path of the elastic packing a in the opened condition is determined based on the comparison result, including:
when Pa ═ Pb, the waterproof failure path of the elastic gasket a with opening is determined as: water seeps out between the elastic packing a and the adjacent concrete block.
According to another aspect of the present invention, there is provided a system for detecting a waterproof failure path in the event of an opening of an elastic sealing gasket, comprising:
the first device for put into the comparison test device A with two elastic sealing gasket a that wait to detect, wherein, every elastic sealing gasket a includes two bullet nature sealing gaskets that relative up-down set up, comparison test device A includes: the testing device comprises two concrete blocks which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks, a water pressure channel and two elastic sealing gaskets a are arranged in the gap, each elastic sealing gasket a is used for respectively blocking one opening end of the water pressure channel, the water pressure channel is communicated with a water pressure device arranged outside the testing device A, the water pressure device is used for conveying water into the water pressure channel by applying water pressure, two ends of each concrete block which are oppositely arranged up and down are respectively provided with an adjustable split bolt which is used for adjusting the opening amount of each elastic sealing gasket a, wherein the upper bullet sealing gasket and the lower bullet sealing gasket of each elastic sealing gasket a are in contact, and the upper bullet sealing gasket and the lower bullet sealing gasket are in contact with one concrete block;
the second device is used for adjusting the opening amount of each elastic sealing gasket a to be detected to a first preset opening amount h through the adjustable split bolt, then applying water pressure to the water pressure channel through the water pressure device until the water leakage condition is found at the opening end side of each elastic sealing gasket a to be detected, which is far away from the water pressure channel, namely the waterproof failure of each elastic sealing gasket a to be detected occurs, and recording the water pressure Pa applied to the water pressure channel by the water pressure device at the moment;
the third device for put into comparison test device B with elastic sealing pad B, wherein, every elastic sealing pad B is the elastic sealing pad that a body was made, and every elastic sealing pad B's structure, shape and an elastic sealing pad a's structure, shape are the same, compare test device B's structure, shape with compare test device A's structure, shape are the same, it includes to compare test device B: the testing device comprises two concrete blocks which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks, a water pressure channel and two elastic sealing gaskets B are arranged in the gap, each elastic sealing gasket B is used for respectively blocking one opening end of the water pressure channel, the water pressure channel is communicated with a water pressure device arranged outside a testing device B, the water pressure device is used for conveying water into the water pressure channel by applying water pressure, two ends of each concrete block which are oppositely arranged up and down are respectively provided with an adjustable split bolt which is used for adjusting the opening amount of each elastic sealing gasket B, and the upper part and the lower part of each elastic sealing gasket B are respectively contacted with one concrete block;
the fourth device is used for adjusting the opening amount of each elastic sealing gasket b to the first preset opening amount h through the adjustable split bolt, then applying water pressure to the water pressure channel through the water pressure device until the water leakage situation is found at the opening end side, far away from the water pressure channel, of each elastic sealing gasket b to be detected, namely the waterproof failure of each elastic sealing gasket b occurs, and recording the water pressure Pb applied to the water pressure channel by the water pressure device at the moment;
and fifth means for comparing the recorded water pressure Pa and water pressure Pb and determining a waterproof failure path of the elastic packing a in the open condition based on the comparison result.
Further, in the above system, the fifth means is configured to determine, when Pa < Pb, that the waterproof failure path of the elastic sealing gasket a in the expanded condition is: water seeps out between the two bullet-shaped gaskets.
Further, in the above system, the fifth means is configured to determine that the waterproof failure path of the elastic sealing gasket a in the opened condition is: water seeps out between the elastic packing a and the adjacent concrete block.
Compared with the prior art, the waterproof failure path of the elastic sealing gasket is judged by designing a comparison test method and comparing the waterproof effects of the elastic sealing gasket under the same test condition and different boundary conditions, the waterproof failure path of the elastic sealing gasket under the stretching condition can be effectively judged, and the waterproof failure path of the elastic sealing gasket under the specific water pressure and the specific stretching condition can be obtained in advance before the engineering waterproof design. Therefore, subsequent waterproof design can be pertinently and effectively guided, the waterproof weak area is strengthened, and finally, water leakage is expected to be achieved in the engineering, so that theoretical basis is provided for the subsequent improvement of the waterproof design of the shield tunnel.
Drawings
FIG. 1 is a schematic view of an elastic gasket a to be tested in a comparative test device A according to an embodiment of the present invention;
fig. 2 is a schematic view of the elastic gasket B to be tested according to the embodiment of the present invention being placed in the comparative test device B.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 2, the present invention provides a method for detecting a waterproof failure path under an opening condition of an elastic sealing gasket, including:
step S1, putting two elastic sealing gaskets a to be detected into a comparison test device A, wherein each elastic sealing gasket a comprises two bullet sealing gaskets which are oppositely arranged up and down, and the comparison test device A comprises: the testing device comprises two concrete blocks 1 which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks, a water pressure channel 2 and two elastic sealing gaskets a are arranged in the gap, each elastic sealing gasket a is used for respectively blocking one opening end of the water pressure channel 2, the water pressure channel 2 is communicated with a water pressure device 3 arranged outside a testing device A, the water pressure device 3 is used for conveying water into the water pressure channel 2 by applying water pressure, two ends of the two concrete blocks 1 which are oppositely arranged up and down are respectively provided with an adjustable split bolt 4, and the adjustable split bolt is used for adjusting the opening amount of each elastic sealing gasket a, wherein the upper bullet sealing gasket and the lower bullet sealing gasket of each elastic sealing gasket a are in contact, and the upper bullet sealing gasket and the lower bullet sealing gasket are respectively in contact with one concrete block 1;
each elastic sealing gasket a is arranged in a form of comprising two bullet sealing gaskets which are oppositely arranged up and down, the form is an actual assembling mode in engineering, namely an upper bullet sealing gasket and a lower bullet sealing gasket, the two concrete blocks and the adjustable split bolt are used for assembling and compressing the upper bullet sealing gasket and the lower bullet sealing gasket to generate contact pressure so as to resist the water pressure applied to the water pressure channel by a pressure device, the upper bullet sealing gasket and the lower bullet sealing gasket are in contact in the mode, and the upper bullet sealing gasket and the lower bullet sealing gasket are in contact with one concrete block;
step S2, adjusting the opening amount of each elastic sealing gasket a to be detected to a first preset opening amount h through the adjustable split bolt, then applying water pressure to the water pressure channel through the water pressure device until the water leakage condition exists at the opening end side of each elastic sealing gasket a to be detected, which is far away from the water pressure channel, namely the water-proof failure of each elastic sealing gasket a to be detected occurs, and recording the water pressure Pa applied to the water pressure channel by the water pressure device at the moment;
step S3, put elastic sealing gasket B into comparison test device B, wherein, every elastic sealing gasket B is an elastic sealing gasket that makes an organic whole, and every elastic sealing gasket B 'S structure, shape and an elastic sealing gasket a' S structure, shape are the same, compare test device B 'S structure, shape with compare test device A' S structure, shape are the same, it includes to compare test device B: the testing device comprises two concrete blocks 1 which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks 1, a water pressure channel 2 and two elastic sealing gaskets B are arranged in the gap, each elastic sealing gasket B is used for respectively blocking one opening end of the water pressure channel 2, the water pressure channel 2 is communicated with a water pressure device 3 arranged outside a testing device B, the water pressure device is used for conveying water into the water pressure channel 2 by applying water pressure, two ends of the two concrete blocks which are oppositely arranged up and down are respectively provided with an adjustable split bolt, the adjustable split bolt 4 is used for adjusting the opening amount of each elastic sealing gasket B, and the upper part and the lower part of each elastic sealing gasket B are respectively in contact with one concrete block 1;
here, each elastic sealing gasket b of the form is specially processed, namely two sub-elastic sealing gaskets of the form A are processed into one elastic sealing gasket in a factory, in the mode, the elastic sealing gaskets are not contacted with each other any more, but are integrated, and the elastic sealing gaskets b are only contacted with concrete;
step S4, adjusting the opening amount of each elastic sealing gasket b to the first preset opening amount h through the adjustable split bolt, then applying water pressure to the water pressure channel through the water pressure device until the water leakage situation is found at the opening end side, far away from the water pressure channel, of each elastic sealing gasket b to be detected, namely the waterproof failure of each elastic sealing gasket b occurs, and recording the water pressure Pb applied to the water pressure channel by the water pressure device at the moment;
and step S5, comparing the recorded water pressure Pa and the water pressure Pb, and determining a waterproof failure path of the elastic sealing gasket a under the condition of opening according to the comparison result.
Here, the value of the first preset opening amount h may be selected according to the actual waterproofing requirement of the project.
According to the invention, by designing a comparison test method and comparing the waterproof effects of the elastic sealing gasket under the same test condition and different boundary conditions, the waterproof failure path of the elastic sealing gasket is judged, the waterproof failure path of the elastic sealing gasket under the stretching condition can be effectively judged, and the waterproof failure path of the elastic sealing gasket under the specific water pressure and the specific stretching condition can be obtained in advance before the engineering waterproof design. Therefore, subsequent waterproof design can be pertinently and effectively guided, the waterproof weak area is strengthened, and finally, water leakage is expected to be achieved in the engineering, so that theoretical basis is provided for the subsequent improvement of the waterproof design of the shield tunnel.
In one embodiment of the method for detecting a waterproof failure path of an elastic sealing gasket in an opened state, step S5, comparing the recorded water pressure Pa and water pressure Pb, and determining a waterproof failure path of an elastic sealing gasket a in an opened state according to the comparison result includes:
when Pa < Pb, the waterproof failure path of the elastic sealing gasket a under the condition of opening is determined as follows: water seeps out between the two bullet-shaped gaskets.
When Pa ═ Pb, the waterproof failure path of the elastic gasket a with opening is determined as: water seeps out between the elastic packing a and the adjacent concrete block.
Here, there are two waterproof failure paths for the elastic gasket a, one is water seeping from between the two bullet-shaped gaskets, and the other is water seeping from between the elastic gasket a and the adjacent concrete block; however, the elastic sealing gasket b has only one waterproof failure path, that is, water seeps out from between the elastic sealing gasket b and the adjacent concrete block, and therefore, compared to Pa and Pb,
when Pa is less than Pb, the waterproof failure path is that water seeps out from the two bullet sealing gaskets, and the waterproof weak point is formed between the two bullet sealing gaskets;
when Pa is Pb, the waterproof failure path is water seeping out from between the elastic gasket a and the adjacent concrete block, and the waterproof weak point is between the elastic gasket a and the adjacent concrete block.
According to another aspect of the present invention, there is provided a system for detecting a waterproof failure path in the event of an opening of an elastic sealing gasket, comprising:
the first device for put into the comparison test device A with two elastic sealing gasket a that wait to detect, wherein, every elastic sealing gasket a includes two bullet nature sealing gaskets that relative up-down set up, comparison test device A includes: the testing device comprises two concrete blocks which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks, a water pressure channel and two elastic sealing gaskets a are arranged in the gap, each elastic sealing gasket a is used for respectively blocking one opening end of the water pressure channel, the water pressure channel is communicated with a water pressure device arranged outside the testing device A, the water pressure device is used for conveying water into the water pressure channel by applying water pressure, two ends of each concrete block which are oppositely arranged up and down are respectively provided with an adjustable split bolt which is used for adjusting the opening amount of each elastic sealing gasket a, wherein the upper bullet sealing gasket and the lower bullet sealing gasket of each elastic sealing gasket a are in contact, and the upper bullet sealing gasket and the lower bullet sealing gasket are in contact with one concrete block;
the second device is used for adjusting the opening amount of each elastic sealing gasket a to be detected to a first preset opening amount h through the adjustable split bolt, then applying water pressure to the water pressure channel through the water pressure device until the water leakage condition is found at the opening end side of each elastic sealing gasket a to be detected, which is far away from the water pressure channel, namely the waterproof failure of each elastic sealing gasket a to be detected occurs, and recording the water pressure Pa applied to the water pressure channel by the water pressure device at the moment;
the third device for put into comparison test device B with elastic sealing pad B, wherein, every elastic sealing pad B is the elastic sealing pad that a body was made, and every elastic sealing pad B's structure, shape and an elastic sealing pad a's structure, shape are the same, compare test device B's structure, shape with compare test device A's structure, shape are the same, it includes to compare test device B: the testing device comprises two concrete blocks which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks, a water pressure channel and two elastic sealing gaskets B are arranged in the gap, each elastic sealing gasket B is used for respectively blocking one opening end of the water pressure channel, the water pressure channel is communicated with a water pressure device arranged outside a testing device B, the water pressure device is used for conveying water into the water pressure channel by applying water pressure, two ends of each concrete block which are oppositely arranged up and down are respectively provided with an adjustable split bolt which is used for adjusting the opening amount of each elastic sealing gasket B, and the upper part and the lower part of each elastic sealing gasket B are respectively contacted with one concrete block;
the fourth device is used for adjusting the opening amount of each elastic sealing gasket b to the first preset opening amount h through the adjustable split bolt, then applying water pressure to the water pressure channel through the water pressure device until the water leakage situation is found at the opening end side, far away from the water pressure channel, of each elastic sealing gasket b to be detected, namely the waterproof failure of each elastic sealing gasket b occurs, and recording the water pressure Pb applied to the water pressure channel by the water pressure device at the moment;
and fifth means for comparing the recorded water pressure Pa and water pressure Pb and determining a waterproof failure path of the elastic packing a in the open condition based on the comparison result.
Further, in the above system, the fifth means is configured to determine, when Pa < Pb, that the waterproof failure path of the elastic sealing gasket a in the expanded condition is: water seeps out between the two bullet-shaped gaskets.
Further, in the above system, the fifth means is configured to determine that the waterproof failure path of the elastic sealing gasket a in the opened condition is: water seeps out between the elastic packing a and the adjacent concrete block.
For details of each system embodiment of the present invention, reference may be made to corresponding parts of each method embodiment, and details are not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (3)
1. A method of detecting a water-tight failure path with an elastomeric gasket deployed, comprising:
put into the comparison test device A with two elastic sealing gasket a that wait to detect, wherein, every elastic sealing gasket a includes two bullet nature sealing gaskets that relative up-down set up, it includes to compare test device A: the testing device comprises two concrete blocks which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks, a water pressure channel and two elastic sealing gaskets a are arranged in the gap, each elastic sealing gasket a is used for respectively blocking one opening end of the water pressure channel, the water pressure channel is communicated with a water pressure device arranged outside the testing device A, the water pressure device is used for conveying water into the water pressure channel by applying water pressure, two ends of each concrete block which are oppositely arranged up and down are respectively provided with an adjustable split bolt which is used for adjusting the opening amount of each elastic sealing gasket a, wherein the upper bullet sealing gasket and the lower bullet sealing gasket of each elastic sealing gasket a are in contact, and the upper bullet sealing gasket and the lower bullet sealing gasket are in contact with one concrete block;
adjusting the opening amount of each elastic sealing gasket a to be detected to a first preset opening amount h through the adjustable split bolt, applying water pressure to the water pressure channel through the water pressure device until the water leakage condition exists at the opening end side of each elastic sealing gasket a to be detected, which is far away from the water pressure channel, is found, namely the waterproof failure of each elastic sealing gasket a to be detected occurs, and recording the water pressure Pa applied to the water pressure channel by the water pressure device at the moment;
put into the comparison test device B with elastic sealing gasket B, wherein, every elastic sealing gasket B is the elastic sealing gasket that a body was made, and every elastic sealing gasket B's structure, shape are the same with the structure, the shape of an elastic sealing gasket a, compare test device B's structure, shape with compare test device A's structure, shape are the same, it includes to compare test device B: the testing device comprises two concrete blocks which are oppositely arranged up and down, wherein a gap is reserved between the two concrete blocks, a water pressure channel and two elastic sealing gaskets B are arranged in the gap, each elastic sealing gasket B is used for respectively blocking one opening end of the water pressure channel, the water pressure channel is communicated with a water pressure device arranged outside a testing device B, the water pressure device is used for conveying water into the water pressure channel by applying water pressure, two ends of each concrete block which are oppositely arranged up and down are respectively provided with an adjustable split bolt which is used for adjusting the opening amount of each elastic sealing gasket B, and the upper part and the lower part of each elastic sealing gasket B are respectively contacted with one concrete block;
adjusting the opening amount of each elastic sealing gasket b to the first preset opening amount h through the adjustable split bolt, applying water pressure into the water pressure channel through the water pressure device until the water leakage condition exists at the opening end side of each elastic sealing gasket b to be detected, which is far away from the water pressure channel, is found, namely the waterproof failure of each elastic sealing gasket b occurs, and recording the water pressure Pb applied into the water pressure channel by the water pressure device at the moment;
the recorded water pressure Pa and water pressure Pb are compared, and a waterproof failure path of the elastic seal gasket a in the opened condition is determined according to the comparison result.
2. The method of detecting a path for a water-proof failure in the event of an opening of an elastic sealing gasket according to claim 1, wherein the recorded water pressure Pa and water pressure Pb are compared, and a path for a water-proof failure in the event of an opening of the elastic sealing gasket a is determined on the basis of the comparison result, comprising:
when Pa < Pb, the waterproof failure path of the elastic sealing gasket a under the condition of opening is determined as follows: water seeps out between the two bullet-shaped gaskets.
3. The method of detecting a path for a water-proof failure in the event of an opening of an elastic sealing gasket according to claim 1, wherein the recorded water pressure Pa and water pressure Pb are compared, and a path for a water-proof failure in the event of an opening of the elastic sealing gasket a is determined on the basis of the comparison result, comprising:
when Pa ═ Pb, the waterproof failure path of the elastic gasket a with opening is determined as: water seeps out between the elastic packing a and the adjacent concrete block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811200771.XA CN109443940B (en) | 2018-10-16 | 2018-10-16 | Method and system for detecting waterproof failure path under condition of opening elastic sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811200771.XA CN109443940B (en) | 2018-10-16 | 2018-10-16 | Method and system for detecting waterproof failure path under condition of opening elastic sealing gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109443940A CN109443940A (en) | 2019-03-08 |
| CN109443940B true CN109443940B (en) | 2021-04-06 |
Family
ID=65545138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811200771.XA Active CN109443940B (en) | 2018-10-16 | 2018-10-16 | Method and system for detecting waterproof failure path under condition of opening elastic sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109443940B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751055B (en) * | 2020-07-07 | 2021-09-14 | 南通市通佳工程质量检测有限公司 | Method and device for monitoring water seepage of underground concrete joint |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200940488Y (en) * | 2006-08-07 | 2007-08-29 | 上海市隧道工程轨道交通设计研究院 | Water-proof structure of shield tunnel suitable for large size stratum uneven sedimentation or dislocation |
| JP2010150798A (en) * | 2008-12-25 | 2010-07-08 | Miyama Ind Corp | Manhole with rise prevention member |
| CN204924568U (en) * | 2015-05-08 | 2015-12-30 | 同济大学 | Tunnel seam waterproof performance test device |
| CN105738220A (en) * | 2016-04-12 | 2016-07-06 | 天津大学 | Pipe piece elastic sealing gasket water tightness testing method considering soil body influences |
| CN106593492A (en) * | 2016-12-19 | 2017-04-26 | 同济大学 | Waterproof elastic sealing gasket for deep water draining shield tunnel segment seam |
| CN106969884A (en) * | 2017-04-21 | 2017-07-21 | 中铁第四勘察设计院集团有限公司 | A kind of waterproof test method and device of tunnel duct piece elastic sealing gasket |
| CN107036763A (en) * | 2017-03-09 | 2017-08-11 | 同济大学 | The test method of shield duct piece joint percolating water |
| CN107121245A (en) * | 2017-04-26 | 2017-09-01 | 同济大学 | Shield tunnel lining segment two seals pad waterproof ability test device and method |
| CN107299689A (en) * | 2017-06-27 | 2017-10-27 | 上海市政工程设计研究总院（集团）有限公司 | A kind of monolithic concrete malformation seam waterproof sealing system and its construction method |
| CN108279097A (en) * | 2018-03-09 | 2018-07-13 | 西南交通大学 | A kind of cross duct pieces of shield tunnel seam waterproof experimental rig |
-
2018
- 2018-10-16 CN CN201811200771.XA patent/CN109443940B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200940488Y (en) * | 2006-08-07 | 2007-08-29 | 上海市隧道工程轨道交通设计研究院 | Water-proof structure of shield tunnel suitable for large size stratum uneven sedimentation or dislocation |
| JP2010150798A (en) * | 2008-12-25 | 2010-07-08 | Miyama Ind Corp | Manhole with rise prevention member |
| CN204924568U (en) * | 2015-05-08 | 2015-12-30 | 同济大学 | Tunnel seam waterproof performance test device |
| CN105738220A (en) * | 2016-04-12 | 2016-07-06 | 天津大学 | Pipe piece elastic sealing gasket water tightness testing method considering soil body influences |
| CN106593492A (en) * | 2016-12-19 | 2017-04-26 | 同济大学 | Waterproof elastic sealing gasket for deep water draining shield tunnel segment seam |
| CN107036763A (en) * | 2017-03-09 | 2017-08-11 | 同济大学 | The test method of shield duct piece joint percolating water |
| CN106969884A (en) * | 2017-04-21 | 2017-07-21 | 中铁第四勘察设计院集团有限公司 | A kind of waterproof test method and device of tunnel duct piece elastic sealing gasket |
| CN107121245A (en) * | 2017-04-26 | 2017-09-01 | 同济大学 | Shield tunnel lining segment two seals pad waterproof ability test device and method |
| CN107299689A (en) * | 2017-06-27 | 2017-10-27 | 上海市政工程设计研究总院（集团）有限公司 | A kind of monolithic concrete malformation seam waterproof sealing system and its construction method |
| CN108279097A (en) * | 2018-03-09 | 2018-07-13 | 西南交通大学 | A kind of cross duct pieces of shield tunnel seam waterproof experimental rig |
Non-Patent Citations (2)
| Title |
|---|
| 水下盾构隧道弹性密封垫防水失效数值模拟研究;王湛;《隧道建设》;20151130;第35卷(第11期);第1164-1168页 * |
| 深层排水盾构隧道接缝防水密封垫形式试验研究;吴炜枫等;《现代隧道技术》;20161231;第53卷(第6期);第190-195页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109443940A (en) | 2019-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106969884B (en) | Waterproof test method and device for tunnel segment elastic sealing gasket | |
| Li et al. | Evaluation and experimental study on the sealant behaviour of double gaskets for shield tunnel lining | |
| US7828067B2 (en) | Inflow control device | |
| CN109443940B (en) | Method and system for detecting waterproof failure path under condition of opening elastic sealing gasket | |
| Shalabi et al. | Sealant behavior of gasketed segmental tunnel lining–Conceptual model | |
| US9909667B2 (en) | Seal for pressurized fluid and open interface gap | |
| DE10143733B4 (en) | sealing system | |
| CN107700537B (en) | The mobile water-stopping system and application method of FS final spice | |
| Low et al. | Effect of through-life changes in soil strength and axial pipe-seabed resistance for HPHT pipeline design | |
| CN107700538B (en) | A kind of movable type composite water-stop system and its application method | |
| CN110929433B (en) | Fatigue damage analysis and service life calculation method for well control device | |
| CN107700541A (en) | M shape waterstop protection devices and installation method | |
| CN110108476B (en) | Method and device for testing action durability of electromagnetic valve of automatic transmission and computer equipment | |
| JP2019108665A (en) | Cut-off member for shield segment | |
| CN111651945A (en) | Method for acquiring waterproof capacity of double-channel sealing gasket | |
| CN107700539A (en) | M shapes waterstop and installation method | |
| CN212003221U (en) | Shield tunnel segment elastic sealing gasket suitable for high water pressure condition | |
| CN210128926U (en) | Shield constructs section of jurisdiction and seals piece infiltration detection device | |
| CN210918969U (en) | Packer sealing performance detection pressure testing device | |
| CN207331752U (en) | M shape waterstop protective devices | |
| EP3189265A1 (en) | Pipe-junction gate system and method | |
| CN110593324A (en) | Waterstop for immersed tube tunnel and method for limiting drawing and shaking of immersed tube | |
| KR102260479B1 (en) | pipe ram unit for continuous circulation process | |
| CN210981775U (en) | A test device that is used for section of jurisdiction slip casting pipe check valve sealing plug to resist water pressure | |
| CN210664939U (en) | Utility tunnel piece leakproofness detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |