CN113774968A - Progressive detection device and detection method for leakage of wall joint of deep foundation pit - Google Patents
Progressive detection device and detection method for leakage of wall joint of deep foundation pit Download PDFInfo
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- CN113774968A CN113774968A CN202111077847.6A CN202111077847A CN113774968A CN 113774968 A CN113774968 A CN 113774968A CN 202111077847 A CN202111077847 A CN 202111077847A CN 113774968 A CN113774968 A CN 113774968A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- 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
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Abstract
The invention relates to a progressive detection device and a detection method for leakage of a wall joint of a deep foundation pit, belongs to the technical field of rock and soil monitoring, and is used for solving the difficulty that the leakage of the wall joint of the deep foundation pit is difficult to monitor and forecast in advance. The device comprises outer pipes of horizontal leakage detection equipment, an inner pipe replacement model and inner pipes of the horizontal leakage detection equipment, wherein a plurality of outer pipes are arranged at the joints of the ground wall according to a certain depth interval, the outer walls of the outer pipes are provided with leakage round holes, and the inner walls of the outer pipes are provided with protective outer sleeves; the outer wall of the inner pipe replacement model is totally closed and is impervious, and the inner pipe replacement model can be rotatably extruded into the outer pipe; the inner pipe is formed by combining a plurality of pipes with equal differential diameters, the end part of the inner pipe forms an annular monitoring observation disc, the outer wall of the inner pipe of the horizontal leakage detection equipment is provided with a leakage area which is not completely closed, and water can be ensured to leak into the inner wall of the inner pipe after replacement; in the construction process of the ground wall, when the outer pipe is embedded, the inner pipe of the outer pipe is filled with an inner pipe replacement model; after the ground wall is formed, the inner pipe replacement model is pulled out, and the inner pipe is filled in the outer pipe.
Description
Technical Field
The invention relates to the technical field of rock and soil monitoring, in particular to a progressive detection device and a detection method for leakage of a wall joint of a deep foundation pit.
Background
The foundation pit enclosure is mainly formed by adopting underground diaphragm walls, and is more and more commonly applied to an enclosure structure of underground engineering, particularly under complex geological conditions or ultra-deep and ultra-large foundation pits. In the construction process, because the process cannot be carried out, the quality cannot meet the design requirement, the local joint has weak points, the joint is found to have leakage after excavation, the joint is required to be immediately blocked, and corresponding blocking methods are adopted according to different water leakage degrees: the early leakage can be repaired by adopting waterproof mortar when trace water leaks; in the middle stage of leakage, when water leakage is serious, the hose can be used for drainage, meanwhile, the hose is sealed by water glass or chemical grouting, and chemical grouting is also needed on the back of the underground wall; in the later stage of leakage, a large amount of soil and sand may leak into the formed water leakage hole, and the hole needs to be plugged by piling soil in time and then is subjected to drainage and chemical grouting treatment. The plugging measures are carried out early and late in the partition and sealing effect of the diaphragm wall and the discovery time of the leakage phenomenon, and have great influence on subsequent construction, so that the leakage detection of the diaphragm wall becomes an important content of engineering construction.
The main detection methods at present mainly comprise a water head method for observing precipitation in and out of a pit, an electroosmosis method and the like, and all of the methods have respective advantages and disadvantages. The method for observing the water head by testing precipitation inside and outside the pit cannot complete detection of a single joint, only can be used for partitioning, cannot confirm information such as elevation and quantity of leakage points, and cannot guide next-step leakage stopping work. Electroosmosis (ECR) is a new technology that is currently actively being popularized, but the market is currently reacting poorly due to its expensive price. The method can accurately perform leakage detection and early warning on the building enclosure, can quickly and accurately stop leakage under the condition that the leakage of the foundation pit and the ground wall is not serious, and is an important measure for ensuring the safety and the quality of foundation pit excavation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a progressive detection device and a detection method for the leakage of the wall joint of the deep foundation pit.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a progressive detection device of deep basal pit diaphragm joint seepage includes:
the horizontal leakage detection device comprises a plurality of horizontal leakage detection device outer tubes, a plurality of horizontal leakage detection device outer tubes are arranged at the joint of a ground wall according to a certain depth interval, leakage round holes are formed in the outer walls of the horizontal leakage detection device outer tubes, and protective outer sleeves are arranged on the inner walls of the horizontal leakage detection device outer tubes;
the outer wall of the inner pipe replacement model is totally closed and is impermeable, and the inner pipe replacement model can be rotatably extruded into the outer pipe of the horizontal leakage detection equipment;
the horizontal leakage detection device inner pipe is formed by combining a plurality of pipes with equal differential diameters, an annular monitoring observation disc is formed at the end part, a leakage area is arranged on the outer wall of the horizontal leakage detection device inner pipe, the leakage area is not completely closed, and water can be ensured to seep into the inner wall of the horizontal leakage detection device inner pipe after replacement;
in the construction process of the ground wall, when the outer pipe of the horizontal leakage detection equipment is pre-buried, an inner pipe replacement model is filled in the outer pipe; after the ground wall is formed, the inner pipe replacement model is pulled out, and the horizontal leakage detection equipment inner pipe is filled in the horizontal leakage detection equipment outer pipe.
Further, in the combination of the plurality of equal-difference diameter pipes, the outer diameter of the outermost pipe is 1cm, the outer diameter of the second pipe is 2cm, the outer diameter of the third pipe is 3cm, and the outer diameter of each pipe is increased by 1cm from outside to inside; all the pipes are independent and independently communicated with the annular monitoring observation discs and correspond to each other one by one; all the tubes are filled with water-conducting material.
Furthermore, the central ring of the annular monitoring observation disc corresponds to the outermost pipe, the 2 rings correspond to the 2 nd pipe from outside to inside in sequence, and the rings of the observation disc are mutually independent; the annular monitoring observation disc is filled with a color-changeable silica gel drying agent. Judging whether leakage occurs at the joint according to the color change of the materials in the annular monitoring observation disc, and judging which position the leakage occurs at present; the development trend of leakage can be obtained through multiple observations, so that whether a leakage stopping measure needs to be carried out immediately is judged.
Further, the certain depth interval is 3 meters or 5 meters.
Furthermore, the protective outer sleeve is an isolation steel plate with a certain height.
The invention also provides a detection method of the gradual detection device for the leakage of the wall joint of the deep foundation pit, which comprises the following steps:
step S1, providing the gradual detection device for the leakage of the wall joint of the deep foundation pit for later use;
step S2, in the process of constructing the ground wall, integrally embedding a plurality of outer pipes of horizontal leakage detection equipment at the joints of the ground wall according to a certain depth interval, and filling the inner pipes in the outer pipes to replace models;
step S3, after the ground wall is formed, digging and exposing the outer pipe of the horizontal leakage detection equipment, opening the protective outer sleeve, taking out the inner pipe replacement model, screwing the inner pipe of the horizontal leakage detection equipment with the same model into the outer pipe of the horizontal leakage detection equipment, and screwing the inner pipe of the horizontal leakage detection equipment;
step S4, observing the annular monitoring observation disc at the innermost end of the inner tube of the horizontal leakage detection equipment every day, when the color of the center is changed, indicating that the far end of the ground wall is leaked, and when other rings gradually change the color, knowing the development degree and speed of the leakage; if the development is rapid or the inner side is gradually approached, a sealing measure is required to be carried out on the periphery of the seam at the position in time; in addition, according to the monitoring conditions of the horizontal leakage monitoring devices at different depths, the vertical distribution condition of leakage can be judged, and better judgment and plugging measures are facilitated;
step S5, after plugging, the annular monitoring observation disc is lack of water supply, and under the condition that the self-generated water is evaporated, the color becomes lighter or returns to the original color, so that the plugging effect can be judged;
and S6, after the deep foundation pit is excavated, reversibly screwing out the inner pipe of the horizontal leakage detection equipment for cyclic use.
Further, in the combination of the plurality of equal-difference diameter pipes, the outer diameter of the outermost pipe is 1cm, the outer diameter of the second pipe is 2cm, the outer diameter of the third pipe is 3cm, and the outer diameter of each pipe is increased by 1cm from outside to inside; all the pipes are independent and independently communicated with the annular monitoring observation discs and correspond to each other one by one; all the tubes are filled with water-conducting material.
Furthermore, the central ring of the annular monitoring observation disc corresponds to the outermost pipe, the 2 rings correspond to the 2 nd pipe from outside to inside in sequence, and the rings of the observation disc are mutually independent; the annular monitoring observation disc is filled with a color-changeable silica gel drying agent.
Further, the certain depth interval is 3 meters or 5 meters.
Furthermore, the protective outer sleeve is an isolation steel plate with a certain height.
Compared with the prior art, the invention has the beneficial technical effects as follows:
(1) according to the progressive detection device for the leakage of the ground wall joint of the deep foundation pit, during the construction process of the ground wall, a plurality of horizontal leakage detection equipment outer pipes are integrally embedded at the ground wall joint according to a certain depth interval, a plurality of horizontal leakage detection equipment inner pipe replacement models are filled, then concrete is poured, after the ground wall strength reaches the rear soil body excavation, when the ground wall is excavated to the position, the end parts of the horizontal leakage detection equipment are stripped, an outer pipe protection steel plate is opened, an inner pipe replacement model is taken out, inner pipes of the same type are screwed into the outer pipes, an annular monitoring observation disc at the innermost end of the inner pipes is observed every day, and the leakage of the joints is observed. The water seepage at different positions is monitored, the seepage degree and the seepage trend of water are known in time, so that proper construction measures are selected, the seepage hidden danger can be eliminated as early as possible, and the difficulty that the seepage of the joint of the foundation pit and the ground wall at present is difficult to monitor and forecast in advance is solved.
(2) The detection method of the gradual detection device for the leakage of the wall joint of the deep foundation pit, provided by the invention, is simple and convenient to operate, low in manufacturing and operating cost and good in popularization value.
Drawings
Fig. 1 is a schematic structural diagram of an outer pipe of a horizontal leakage detection device in a gradual leakage detection device for a foundation pit and earth wall joint according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of an inner pipe of a horizontal leakage detection device in the gradual leakage detection device for the wall joint of the deep foundation pit according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a color-changeable silica gel desiccant in the gradual detection device for detecting leakage of a wall joint of a deep foundation pit according to an embodiment of the present invention.
In the figure:
10-horizontal leakage detection equipment outer pipe, 11-isolation steel plate; 20-horizontal leakage detection equipment inner pipe, 21-pipe I, 22-pipe II, 23-pipe III and 24-pipe IV; 25-ring-shaped monitoring observation disc, 26-rotatable interface; 27-color changeable silica gel desiccant.
Detailed Description
The following describes the gradual detection device and detection method for the wall joint leakage of the deep foundation pit in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.
Example one
The following describes the structural components of the gradual detection device for detecting the wall joint leakage of the deep foundation pit in detail with reference to fig. 1 to 3.
Referring to fig. 1 to 3, a progressive detecting device for detecting leakage of a wall joint of a deep foundation pit,
a progressive detection device for leakage of a ground wall joint of a deep foundation pit comprises an outer pipe 10 of horizontal leakage detection equipment, an inner pipe replacement model (not shown) and an inner pipe 20 of the horizontal leakage detection equipment, wherein a plurality of outer pipes 10 of the horizontal leakage detection equipment are arranged at the joint of the ground wall according to a certain depth interval (3 meters or 5 meters), the outer wall of each outer pipe 10 of the horizontal leakage detection equipment is provided with a leakage round hole, and the inner wall of each outer pipe 10 of the horizontal leakage detection equipment is provided with a protective outer sleeve such as an isolation steel plate 11; the outer wall of the inner pipe replacement model is totally closed and is impervious, and the inner pipe replacement model can be rotatably extruded into the outer pipe 10 of the horizontal leakage detection equipment through a rotatable connector 26; the inner pipe 20 of the horizontal leakage detection device is formed by combining a plurality of pipes with equal differential diameters, the end part of the inner pipe is provided with an annular monitoring observation disc 25, the outer wall of the inner pipe 20 of the horizontal leakage detection device is provided with a leakage area which is not completely closed, and water can be ensured to seep into the inner wall of the inner pipe 20 of the horizontal leakage detection device after replacement; in the construction process of the ground wall, when the outer pipe 10 of the horizontal leakage detection equipment is pre-buried, an inner pipe replacement model is filled in the pipe; after the ground wall is formed, the inner pipe replacement model is removed, and the horizontal leakage detection device inner pipe 20 is filled in the horizontal leakage detection device outer pipe 10.
In this embodiment, more preferably, in the combination of the plurality of pipes with the same differential diameter, the outer diameter of the outermost pipe four 24 is 1cm, the outer diameter of the second pipe three 23 is 2cm, the outer diameter of the third pipe two 22 is 3cm, the outer diameter of the fourth pipe one 21 is 4cm, and each of the pipe lengths increases by 1cm from outside to inside; all the pipes are independent from each other, independently led to the annular monitoring observation disc 25 and correspond to each other one by one; all the tubes are filled with water-conducting material.
In particular, a plurality of 10cm, 15cm and 20cm pipes with the same diameter can be combined to be matched with the ground walls with the widths of 600, 800, 1000, 1200, 1500 and the like.
In this embodiment, it is more preferable that the observation disc 25 is in a ring shape, the central ring corresponds to the outermost pipe, the 2 rings correspond to the 2 nd pipe from the outside to the inside, and the rings of the observation disc are independent from each other; the annular monitoring observation disc 25 is filled with a color-changeable silica gel drying agent 27. Judging whether leakage occurs at the joint according to the change of the color of the material in the annular monitoring observation disc 25, and judging which position the leakage occurs at present; the development trend of leakage can be obtained through multiple observations, so that whether a leakage stopping measure needs to be carried out immediately is judged.
In the present embodiment, it is more preferable that the certain depth interval is 3 meters or 5 meters.
In this embodiment, the protective casing is more preferably an insulating steel plate 11 with a certain height.
Example two
With continuing reference to fig. 1 to fig. 3, the present invention further provides a detection method of a gradual detection device for detecting leakage of a wall joint of a deep foundation pit, the detection method includes the following steps:
step S1, providing the gradual detection device for the leakage of the wall joint of the deep foundation pit for later use;
step S2, during the construction process of the ground wall, integrally embedding a plurality of outer pipes 10 of the horizontal leakage detection equipment at the joints of the ground wall according to a certain depth interval of 3 meters or 5 meters, and filling inner pipes in the outer pipes to replace models;
step S3, after the ground wall is formed, digging and exposing the outer pipe 10 of the horizontal leakage detection device, opening the protective outer sleeve, taking out the inner pipe replacement model, screwing the inner pipe 20 of the horizontal leakage detection device with the same model into the outer pipe 10 of the horizontal leakage detection device, and screwing the inner pipe tightly;
step S4, observing the annular monitoring observation disc 25 at the innermost end of the inner tube 20 of the horizontal leakage detection device every day, when the color of the center changes, indicating that the far end of the ground wall has leaked, and when other rings gradually change the color, knowing the development degree and speed of the leakage; if the development is rapid or the inner side is gradually approached, a sealing measure is required to be carried out on the periphery of the seam at the position in time; in addition, according to the monitoring conditions of the horizontal leakage monitoring devices at different depths, the vertical distribution condition of leakage can be judged, and better judgment and plugging measures are facilitated;
step S5, after plugging, the annular monitoring observation disc 25 lacks water supply, and the color becomes lighter or returns to the original color under the condition that the self-generated water evaporates, so that the plugging effect can be judged;
and S6, after the deep foundation pit is excavated, reversibly screwing out the inner pipe 20 of the horizontal leakage detection equipment for cyclic use.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. The utility model provides a progressive detection device of deep basal pit diaphragm leak, its characterized in that includes:
the horizontal leakage detection device comprises a plurality of horizontal leakage detection device outer tubes, a plurality of horizontal leakage detection device outer tubes are arranged at the joint of a ground wall according to a certain depth interval, leakage round holes are formed in the outer walls of the horizontal leakage detection device outer tubes, and protective outer sleeves are arranged on the inner walls of the horizontal leakage detection device outer tubes;
the outer wall of the inner pipe replacement model is totally closed and is impermeable, and the inner pipe replacement model can be rotatably extruded into the outer pipe of the horizontal leakage detection equipment;
the horizontal leakage detection device inner pipe is formed by combining a plurality of pipes with equal differential diameters, an annular monitoring observation disc is formed at the end part, a leakage area is arranged on the outer wall of the horizontal leakage detection device inner pipe, the leakage area is not completely closed, and water can be ensured to seep into the inner wall of the horizontal leakage detection device inner pipe after replacement;
in the construction process of the ground wall, when the outer pipe of the horizontal leakage detection equipment is pre-buried, an inner pipe replacement model is filled in the outer pipe; after the ground wall is formed, the inner pipe replacement model is pulled out, and the horizontal leakage detection equipment inner pipe is filled in the horizontal leakage detection equipment outer pipe.
2. The progressive detection device for detecting the leakage of the ground wall joint of the deep foundation pit according to claim 1, wherein in the combination of the plurality of pipes with the equal differential diameter, the outer diameter of the outermost pipe is 1cm, the outer diameter of the second pipe is 2cm, the outer diameter of the third pipe is 3cm, and the outer diameter of each pipe is increased by 1cm from outside to inside; all the pipes are independent and independently communicated with the annular monitoring observation discs and correspond to each other one by one; all the tubes are filled with water-conducting material.
3. The progressive detection device for the leakage of the joint of the ground wall of the deep foundation pit as claimed in claim 1, wherein the ring-shaped monitoring observation disc has a central ring corresponding to the outermost pipe, 2 rings corresponding to the 2 nd pipe from the outside to the inside in sequence, and the rings of the observation disc are independent from each other; the annular monitoring observation disc is filled with a color-changeable silica gel drying agent.
4. The progressive detection device of deep foundation pit and earth wall joint leakage according to claim 1, wherein the certain depth interval is 3 meters or 5 meters.
5. The progressive detection device for detecting the leakage of the wall joint of the deep foundation pit according to claim 1, wherein the protective outer sleeve is an isolation steel plate with a certain height.
6. A detection method of a gradual detection device for leakage of a wall joint of a deep foundation pit is characterized by comprising the following steps:
step S1, providing the gradual detection device for the leakage of the wall joint of the deep foundation pit according to any one of claims 1 to 5 for standby;
step S2, in the process of constructing the ground wall, integrally embedding a plurality of outer pipes of horizontal leakage detection equipment at the joints of the ground wall according to a certain depth interval, and filling the inner pipes in the outer pipes to replace models;
step S3, after the ground wall is formed, digging and exposing the outer pipe of the horizontal leakage detection equipment, opening the protective outer sleeve, taking out the inner pipe replacement model, screwing the inner pipe of the horizontal leakage detection equipment with the same model into the outer pipe of the horizontal leakage detection equipment, and screwing the inner pipe of the horizontal leakage detection equipment;
step S4, observing the annular monitoring observation disc at the innermost end of the inner tube of the horizontal leakage detection equipment every day, when the color of the center is changed, indicating that the far end of the ground wall is leaked, and when other rings gradually change the color, knowing the development degree and speed of the leakage; if the development is rapid or the inner side is gradually approached, a sealing measure is required to be carried out on the periphery of the seam at the position in time; in addition, according to the monitoring conditions of the horizontal leakage monitoring devices at different depths, the vertical distribution condition of leakage can be judged, and better judgment and plugging measures are facilitated;
step S5, after plugging, the annular monitoring observation disc is lack of water supply, and under the condition that the self-generated water is evaporated, the color becomes lighter or returns to the original color, so that the plugging effect can be judged;
and S6, after the deep foundation pit is excavated, reversibly screwing out the inner pipe of the horizontal leakage detection equipment for cyclic use.
7. The method according to claim 6, wherein in the combination of the plurality of pipes with the same differential diameter, the outer diameter of the outermost pipe is 1cm, the outer diameter of the second pipe is 2cm, the outer diameter of the third pipe is 3cm, and the outer diameter of each pipe increases by 1cm from outside to inside; all the pipes are independent and independently communicated with the annular monitoring observation discs and correspond to each other one by one; all the tubes are filled with water-conducting material.
8. The detection method according to claim 6, wherein the ring-shaped monitoring observation disc is characterized in that a central ring corresponds to the outermost pipe, 2 rings correspond to the 2 nd pipe from outside to inside in sequence, and the rings of the observation disc are independent from each other; the annular monitoring observation disc is filled with a color-changeable silica gel drying agent.
9. The method of claim 6, wherein the depth-to-depth spacing is 3 meters or 5 meters.
10. The method of claim 6, wherein the protective jacket is a steel spacer plate of a certain height.
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| CN202111077847.6A CN113774968B (en) | 2021-09-15 | 2021-09-15 | Progressive detection device and detection method for leakage of wall joint of deep foundation pit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0500439D0 (en) * | 2004-01-27 | 2005-02-16 | Roughley David J | Water leak detector |
| CN101210854A (en) * | 2006-12-27 | 2008-07-02 | 徐文国 | Water leakage detection indicator and water leakage detection method |
| KR101577963B1 (en) * | 2014-08-25 | 2015-12-17 | 백상렬 | Plumbing leak detection device |
| CN209084190U (en) * | 2018-07-31 | 2019-07-09 | 浙江伟星新型建材股份有限公司 | A kind of chemical industry fluid conveying leakproof double-jacket tube |
| CN213874828U (en) * | 2020-12-08 | 2021-08-03 | 张九成 | Building detects with detection device that leaks |
-
2021
- 2021-09-15 CN CN202111077847.6A patent/CN113774968B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0500439D0 (en) * | 2004-01-27 | 2005-02-16 | Roughley David J | Water leak detector |
| CN101210854A (en) * | 2006-12-27 | 2008-07-02 | 徐文国 | Water leakage detection indicator and water leakage detection method |
| KR101577963B1 (en) * | 2014-08-25 | 2015-12-17 | 백상렬 | Plumbing leak detection device |
| CN209084190U (en) * | 2018-07-31 | 2019-07-09 | 浙江伟星新型建材股份有限公司 | A kind of chemical industry fluid conveying leakproof double-jacket tube |
| CN213874828U (en) * | 2020-12-08 | 2021-08-03 | 张九成 | Building detects with detection device that leaks |
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