CN116479981B - A method for permanent sealing of sewage connection pipes inside a drainage box - Google Patents
A method for permanent sealing of sewage connection pipes inside a drainage boxInfo
- Publication number
- CN116479981B CN116479981B CN202310453698.1A CN202310453698A CN116479981B CN 116479981 B CN116479981 B CN 116479981B CN 202310453698 A CN202310453698 A CN 202310453698A CN 116479981 B CN116479981 B CN 116479981B
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- sewage
- connection pipe
- channel box
- pipe
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Revetment (AREA)
- Sewage (AREA)
Abstract
本发明涉及地下水管封堵处理技术领域，具体公开了一种渠箱内污水连接管永久封堵施工方法包括以下步骤：开挖路面及覆土至渠箱顶部，并在渠箱顶部切割出施工窗口；渠箱顶部切割出施工窗口后，从窗口进入渠箱内部进行水下作业，采用可充气气囊对连接管进行初步封堵，使连接管内流水处于静止状态；在渠箱内修筑围堰，围堰位于连接管的上游，以阻断渠箱上游的来水；在围堰与连接管之间设置抽水装置，并通过抽水装置排出围堰与连接管之间的积水；在渠箱内对应连接管修建挡墙，以对连接管进行永久封堵；对渠箱顶部的窗口进行修复，恢复路面；本发明施工占地面积小，不会破坏地面及其地下管线结构。
This invention relates to the field of underground water pipe sealing technology, specifically disclosing a method for permanently sealing a sewage connection pipe inside a drainage trough, comprising the following steps: excavating the road surface and covering it with soil to the top of the drainage trough, and cutting a construction window at the top of the drainage trough; after cutting the construction window at the top of the drainage trough, entering the drainage trough through the window to conduct underwater operations, using an inflatable airbag to initially seal the connection pipe, so that the water flowing inside the connection pipe is in a stagnant state; constructing a cofferdam inside the drainage trough, the cofferdam being located upstream of the connection pipe to block the incoming water from the upstream of the drainage trough; installing a pumping device between the cofferdam and the connection pipe, and draining the accumulated water between the cofferdam and the connection pipe through the pumping device; constructing a retaining wall inside the drainage trough corresponding to the connection pipe to permanently seal the connection pipe; repairing the window at the top of the drainage trough and restoring the road surface; this invention occupies a small construction area and will not damage the ground surface and its underground pipeline structure.
Description
Technical Field
The application relates to the technical field of underground water pipe plugging treatment, and particularly discloses a permanent plugging construction method for a sewage connecting pipe in a canal.
Background
The urban underground drainage is generally divided into sewage drainage and rainwater drainage, the sewage is discharged through a sewage pipe and finally is introduced into a sewage treatment plant for treatment, and the rainwater is generally discharged into a river through a canal box. In municipal traditional planning engineering, the intercommunication has the connecting pipe between sewer pipe and the canal box, and the sewage of sewer pipe can lets in the canal box, and the rainwater of canal box also can let in the sewer pipe to cope with the heavy rain that extreme weather brought, the effect is in order to accelerate the emission of water, avoids appearing the road by the condition of flooding. However, with the expansion of cities and the upgrading and reconstruction of roads, the flow rate of the original sewage pipeline is increased sharply, so that sewage of the sewage pipeline flows into the canal box through the connecting pipe, rainwater in the canal box overflows, and the life of surrounding residents is seriously influenced by smell and rainwater generated by overflow, so that the connecting pipe is required to be plugged.
A construction method for a deep foundation pit deep buried water-rich sewage pipe of a subway station disclosed in China patent publication No. CN115094997A comprises the following steps of 1, upstream sewage pipe plugging, 2, sewage pipe ponding pumping and draining, 3, downstream sewage pipe plugging, and 4, sewage pipe orifice plugging. When this patent carries out drilling grout shutoff to the water pipe of upstream, adopts and bores the form that gets gasbag and transfer hole and concrete placement hole combine together, pours into the concrete into in the sewer pipe low reaches through the slip casting pipe to shutoff to sewer pipe low reaches position, can prevent effectively that sewage from permeating in the subway foundation ditch. However, when the patent is used for construction, two air bag holes and one concrete pouring hole are required to be drilled at the position of the sewage pipe, the drilling construction occupies a large area of field, and meanwhile, the ground structure is damaged by drilling and other pipelines under the ground are damaged when the drilling is carried out. The underground drainage pipe of the city is usually positioned under the traffic main, and the number of underground pipelines under the traffic main is particularly large, so that the construction site is limited, and the road cannot be damaged on a large scale.
Accordingly, the inventors have found that a method of permanently plugging a sewage connection pipe in a canal is provided to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the problems that the traditional pipeline plugging construction needs to occupy a large area of field, the pipeline is easily damaged by plugging through drilling, and other pipelines under the ground can be possibly damaged.
In order to achieve the above purpose, the basic scheme of the invention provides a permanent plugging construction method for a sewage connecting pipe in a canal box, which comprises the canal box and a sewage pipe, wherein the canal box and the sewage pipe are positioned below the ground, the sewage pipe is positioned below the canal box, and the connecting pipe is communicated between the canal box and the sewage pipe, and the permanent plugging construction method for the sewage pipe in the canal box is characterized by comprising the following steps:
S001, excavating a pavement and covering soil to the top of the canal box, and cutting a construction window at the top of the canal box;
step S002, after a construction window is cut out of the top of the canal box, the canal box enters the canal box from the window to carry out underwater operation, and an inflatable air bag is adopted to initially plug a connecting pipe, so that water in the connecting pipe is in a static state;
S003, constructing a cofferdam in the canal box, wherein the cofferdam is positioned at the upstream of the connecting pipe so as to block incoming water at the upstream of the canal box;
step S004, a water pumping device is arranged between the cofferdam and the connecting pipe, and accumulated water between the cofferdam and the connecting pipe is discharged through the water pumping device;
s005, constructing a retaining wall in the canal corresponding to the connecting pipe so as to permanently block the connecting pipe;
and S006, repairing a window at the top of the canal box and recovering the road surface.
In step S002, when flowing water in the connecting pipe is in a static state, the inner surface of the connecting pipe is cleaned, and the prefabricated sealing wall is blocked in the connecting pipe after the cleaning is finished, so that the connecting pipe is further blocked.
Further, the sealing wall is built by cement mortar and solid bricks.
Further, in step S004, after the accumulated water between the cofferdam and the connecting pipe is drained, a waterproof mortar is coated on the surface of the sealing wall, which is close to the canal, so as to prevent water seepage.
Further, in step S005, the retaining wall is of an "L" structure, a vertical portion of the "L" structure is located in the trench and is blocked at an end of the connecting pipe close to the trench, and a bottom horizontal portion of the "L" structure is disposed toward the trench.
Further, the retaining wall is fixedly connected with the canal through a planted rib.
Further, the thickness of the retaining wall is not greater than 200mm.
Further, in any of the steps S002 to S005, a cover plate may be provided on the upper cover of the construction window.
Further, in step S001, when the construction window is cut, a reinforcing bar head of 180-220mm length is reserved at the periphery of the window.
Further, in step S006, when repairing the window at the top of the trench, binding the reinforcing steel bars in the window, welding the reinforcing steel bars with the reinforcing steel bar heads reserved at the periphery of the window, and pouring concrete after the welding is completed to recover the pavement.
The principle and effect of the invention are as follows:
1. Compared with the prior art, the invention only needs to open a construction window at the top of the canal box, has small construction area, can provide conditions for open traffic in daytime, and achieves the effect of permanent plugging by adopting the form of underwater installation of the air bags, the sealing wall and the retaining wall by combining the diver frogman. Compared with the prior art, the invention does not need to drill a plurality of holes at the position above the sewage pipe and occupy a large area of field, avoids the damage of drilling to the ground structure or pipeline, is suitable for plugging construction of the sewage pipe under municipal main roads, and solves the problems that the traditional pipeline plugging construction needs to occupy a large area of field, the ground structure is easily damaged by plugging the pipeline in a drilling mode, and other pipelines under the ground can be possibly damaged.
2. Compared with the prior art, the retaining wall is provided with the retaining wall, the retaining wall is of an L-shaped structure, the gravity of water exerts acting force on the bottom of the retaining wall, so that the retaining wall can be stabilized and prevented from being washed down by water flow, meanwhile, when the water flow in the canal is washed towards the retaining wall, vortex and vortex are formed in the L-shaped structure due to different heights and speeds of wave crests and wave troughs of the water flow, and the flow can slowly reduce the kinetic energy and the height of water flow impact, so that the impact on the retaining wall is weakened, and the stability of blocking of a connecting pipe is improved.
Drawings
FIG. 1 is a top view of a construction method for permanently plugging a sewage connection pipe in a canal according to an embodiment of the present application;
FIG. 2 is a cross-sectional view taken along line a-a of FIG. 1 in accordance with an embodiment of the present application;
fig. 3 is a cross-sectional view taken along line b-b of fig. 1 in an embodiment of the present application.
FIG. 4 is a partial cross-sectional view of an excavated pavement of a permanent plugging construction method for a sewage connection pipe in a trench box according to an embodiment of the present application;
fig. 5 is a partial cross-sectional view of the construction method of permanently plugging a sewage connection pipe in a trench box according to an embodiment of the present application after excavating a road surface and cutting the top of the trench box.
The drawings are for illustrative purposes only and should not be construed as limiting the present patent, and certain components of the drawings may be omitted, enlarged or reduced in order to better illustrate the present embodiment, and do not represent the actual product size, and it may be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted, that the same or similar reference numerals correspond to the same or similar components, and that the terms describing the positional relationship in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.
Reference numerals:
the construction method comprises the steps of a canal box 1, a construction window 101, a cover plate 2, a connecting pipe 3, a sewage pipe 4, a sealing wall 5, a retaining wall 6, an air bag 7, a pumping device 8, a cofferdam 9, a soil pit 10, a concrete crown beam 11, a supporting bar 12, a steel structure 13, a gate 14 and a reinforcing steel bar head 15.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments of the present application and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as unduly limiting the present application.
In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are illustrative of the application and are not intended to limit the scope of the application.
In embodiments of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Furthermore, in the embodiments of the present application, the terms "upper," "lower," "left," and "right," etc., are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative terms, which are used for descriptive and clarity with respect to each other, and which may vary accordingly with respect to the orientation in which the components in the drawings are disposed.
In the embodiments of the present application, unless explicitly specified and limited otherwise, the term "connected" shall be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral unit, and may be directly connected or indirectly connected through an intermediary.
In embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present application is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The technical scheme of the invention is described in detail below with reference to the specific drawings.
Firstly, it is to be noted that as shown in fig. 1-3, at present municipal clean water and/or rainwater on the surface is introduced into a canal box 1 below the ground, and finally flows into a river from the canal box 1, municipal sewage is introduced into a sewage pipe 4, the sewage in the sewage pipe 4 finally flows into a sewage treatment plant, the sewage is treated by the sewage treatment plant, according to the planning of traditional municipal engineering, the sewage pipe 4 is arranged below the canal box 1, a connecting pipe 3 is communicated between the canal box 1 and the sewage pipe 4, when the sewage flow in the sewage pipe 4 is small, namely, part of clean water/rainwater in the canal box 1 flows into the river, and the other part of clean water/rainwater flows into the sewage pipe 4, the effect of heavy rain caused by extreme weather can be overcome, the effect is to accelerate the discharge of the clean water/rainwater in the canal box, the condition that the water is flooded by the road is avoided, but the sewage treatment plant has limited water treatment capacity due to the increase of the domestic sewage, the influence of the network water level top support of the downstream sewage pipe 4, and the like, a part of the sewage in the sewage pipe 4 enters the canal box 1 through the 3, after the sewage enters the canal box 1, the water level 1 is increased, and the sewage is seriously, and the problem that the sewage 1 is seriously overflowed, and the sewage 1 is not seriously overflowed, and the water 1 is not influenced, and the water is seriously overflowed, and the canal 1 is not needed, and the problem is solved, and the sewage is not seriously is caused, and the sewage pipe 1, and the water is not overflows and the water 1.
The invention generally arranges the construction time for plugging the connecting pipe 3 at night and opens traffic in daytime, thereby bringing convenience to the residents and offices nearby and avoiding traffic influence, and referring to fig. 1-5, the construction method for permanently plugging the sewage pipe 4 in the canal box 1 provided by the embodiment comprises the following steps:
Step S001, excavating a pavement and covering soil to the top of the canal box 1, and cutting a construction window 101 at the top of the canal box 1;
As shown in fig. 4 and 5, firstly, determining the position of a road surface to be excavated, enclosing the position to be excavated by using guardrails, excavating a soil pit 10 by using the guardrails, excavating the soil pit 10 until the soil pit 10 reaches the top of a canal box 1, binding reinforcing steel bars and supporting templates in the soil pit 10, embedding steel pipes and steel structures 13 in the soil pit 10, and supporting the periphery of the soil pit 10.
The I30A I-shaped steel girder is preferable for the support bar 12, expansion bolts are arranged at intervals of 0.3-1.0 m to fix the I-shaped steel girder at the top of the crown beam, two or more layers of high-strength steel plates are placed on the upper surface of the support bar 12 for paving, the thickness of the high-strength steel plates is required to be more than 20mm, and notably, the uppermost high-strength steel plates after paving are required to be level with the road ground, so that vehicles or pedestrians can pass through conveniently.
The concrete crown beam 11 is formed by pouring concrete above the soil pit 10, and the concrete crown beam 11 plays a supporting role, so that the load born by the upper part of the soil pit 10 structure can be effectively resisted, and damage to the soil pit 10 is avoided when a vehicle runs through a high-strength steel plate.
Further, as shown in fig. 5, the top of the trench box 1 is cut by using a cutting tool, the construction window 101 is cut by adopting a static cutting mode, the cut part of the trench box 1 is the top plate of the trench box 1, the preferred cutting window is 3m x 2m (of course, it is understood that the size of the construction window 101 is set according to the actual construction condition, the invention does not limit), the concrete components except the position of the construction window 101 cannot be lost during cutting, 180-200 mm reinforcing steel bar heads 15 are reserved at the side of the construction window 101 for subsequent repair use of the construction window 101, and the preferred construction window 101 reserves 200mm reinforcing steel bar heads 15.
Step S002, after a construction window 101 is cut out from the top of the canal box 1, the water enters the canal box 1 from the construction window 101 to carry out underwater operation, and the inflatable air bag 7 is adopted to carry out primary plugging on the connecting pipe 3, so that the water flowing in the connecting pipe 3 is in a static state;
As shown in fig. 2 and 5, after the diver binds the safety rope, the diver enters the canal 1 from the construction window 101 to perform underwater operation, the diver moves into the connecting pipe 3 from the inside of the canal 1 with the inflatable air bag 7, the air bag 7 is inflated under water, the air bag 7 is inflated to temporarily block the connecting pipe 3, so that water in the connecting pipe 3 is in a static state (i.e., clear water/rainwater in the canal 1 does not flow into the sewage pipe 4 temporarily or sewage in the sewage pipe 4 does not flow into the canal 1 temporarily).
The invention also comprises a sealing wall 5 prefabrication step, specifically, after the air bag 7 is blocked, the diver firstly cleans the inner surface of the connecting pipe 3 and then builds the sealing wall 5.
The sealing wall 5 is built by cement mortar and solid bricks, the cement of the invention is preferably M15 quick-drying cement mortar, and the solid bricks are preferably MU15 strength solid bricks. The sealing wall 5 is manufactured in a prefabricated mode, specifically, water glass, a quick-drying agent and one or two or more of a coagulant are mixed in the mixing process according to the proportion of 1:4.53, the mixing process should be carried out along with the mixing, the sealing wall 5 is hoisted into the canal box 1 after the sealing wall 5 is prefabricated, and the sealing wall 5 is brought into the connecting pipe 3 by a diver for further plugging.
Step S003, constructing a cofferdam 9 in the canal box 1, wherein the cofferdam 9 is positioned at the upstream of the connecting pipe 3 so as to block the incoming water at the upstream of the canal box 1;
As shown in fig. 4, the height of the cofferdam 9 is determined according to the actual construction environment (if the water flow in the canal box 1 is large, the height of the cofferdam 9 needs to be correspondingly increased, otherwise, the height of the cofferdam 9 can be properly reduced), the purpose of constructing the cofferdam 9 is to block the incoming water at the upstream of the canal box 1, and meanwhile, the downstream gate 14 of the canal box 1 is opened, the canal box 1 is drained, so that the canal box 1 is positioned at the downstream of the cofferdam 9 and is in a 'dry pond' state, and the upstream incoming water is blocked by arranging the cofferdam 9, thereby facilitating the permanent plugging construction of the subsequent connecting pipe 3.
Step S004, a water pumping device 8 is arranged between the cofferdam 9 and the connecting pipe 3, and accumulated water between the cofferdam 9 and the connecting pipe 3 is discharged through the water pumping device 8;
Specifically, after the cofferdam 9 of the canal box 1 is built, the water pumping device 8 is preferably an emergency water pump, although the cofferdam 9 is arranged to block most of the water coming from the upstream of the canal box 1, the cofferdam 9 is of a concrete structure, the situation that the concrete is combined with the canal box 1 and is not compact and leaked due to dry shrinkage of the concrete or unclean walls of the canal box 1 is likely to exist due to the blocking of the cofferdam 9, and part of clear water/rainwater in the canal box 1 flows through the cofferdam 9 to form accumulated water between the cofferdam 9 and the connecting pipe 3, and the water pumping device 8 is arranged to facilitate the water pumping of the accumulated water and the permanent blocking construction of the subsequent connecting pipe 3. Further, when water is formed between the cofferdam 9 and the connecting pipe 3 and is pumped out by the pumping device 8, waterproof mortar is coated on one surface of the sealing wall 5, which is close to the canal box 1, so as to prevent water seepage.
Step S005, constructing a retaining wall 6 corresponding to the connecting pipe 3 in the canal box 1 so as to permanently block the connecting pipe 3;
As shown in fig. 3 and 4, after the cofferdam 9 is built, the water pumping device 8 pumps and discharges the accumulated water, the retaining wall 6 is built at the joint of the connecting pipe 3 and the canal box 1, the retaining wall 6 is of a reinforced concrete structure, the cross section of the retaining wall 6 is of an L-shaped structure, and the retaining wall 6 is positioned in the canal box 1. The vertical portion of the retaining wall 6"L" type structure is close to the side wall of the canal box 1 and is attached to the side wall of the canal box 1, the bottom horizontal portion of the "L" type structure is arranged towards the canal box 1, and the bottom of the retaining wall 6 is attached to the inner bottom surface of the canal box 1. The retaining wall 6 is of an L-shaped structure, and the principle of the invention is that when water in the canal 1 enters the L-shaped retaining wall 6, acting force is applied to the bottom of the retaining wall 6 due to the gravity of the water, so as to stabilize the retaining wall 6. Meanwhile, when the water flow in the canal 1 rushes towards the retaining wall 6, vortex and vortex are formed in the L-shaped structure due to different heights and speeds of the wave crest and the wave trough, and the flow slowly reduces the kinetic energy and the height of the water flow impact, so that the impact on the retaining wall 6 is weakened.
As shown in fig. 3, the thickness of the retaining wall 6 (i.e. the width of the vertical portion and the width of the horizontal portion of the retaining wall 6 with an L-shaped structure) is not greater than 200mm, the retaining wall 6 of the present invention is poured by adopting a bidirectional reinforcement manner, and a plurality of reinforcements with diameters of 12mm are arranged inside the retaining wall 6, and the arrangement is performed at intervals of 150mm, so that the structural strength of the retaining wall 6 is improved.
Meanwhile, the retaining wall 6 is connected with the canal box 1 in a reinforcement planting mode, reinforcement planting can be performed in an existing mode, specifically, holes are drilled on the retaining wall 6, holes are drilled on the bottom and the side wall of the canal box 1, and reinforcement planting glue is injected (the reinforcement planting glue can be injection type reinforcement planting glue and/or barrel type reinforcement planting glue, and the invention is not limited). And then inserting the reinforcing steel bars, and bonding the reinforcing steel bars, the retaining wall 6 and the canal box 1 into a whole after the high-strength building reinforcing steel bar planting glue is solidified, so as to realize permanent plugging of the connecting pipe 3.
It should be noted that, when the steel bars are planted with HRB335 grade steel bars, the concrete strength grade of the retaining wall 6 must not be lower than C15, when the steel bars are planted with HRB400 grade steel bars, the concrete strength grade of the retaining wall 6 must not be lower than C20, and when the steel bars are planted with HPB235 grade steel bars, the diameter of the steel bars must not be greater than 12mm, and the concrete strength grade of the retaining wall 6 must not be lower than C20.
When the retaining wall 6 permanently seals the connecting pipe 3, the cofferdam 9 is removed, the pumping device 8 is taken out, the connecting pipe 3 between the canal box 1 and the sewage pipe 4 is not communicated any more, the work of the sewage pipe 4 and the work of the canal box 1 are not mutually influenced, namely, clear water/rainwater in the canal box 1 flows into a river, the problem that sewage in the sewage pipe 4 overflows into the canal box 1 through the connecting pipe 3 due to the influence of water level jacking and the like of the downstream sewage pipe 4 is avoided, the odor generated by overflow is avoided, the life of surrounding residents is not influenced, meanwhile, the sewage in the sewage pipe 4 flows to a sewage treatment plant, the sewage is treated by the sewage treatment plant, the clear water/rainwater in the canal box 1 is prevented from entering the sewage pipe 4 through the connecting pipe 3, the water flow of the sewage pipe 4 is reduced, and the sewage treatment plant is convenient to treat the sewage.
In any step from step S002 to step S005, the construction window 101 may be covered with a cover plate 2, so as to facilitate vehicles or pedestrians passing therethrough, so as to avoid the road surface traffic being affected by the construction process. The cover plate 2 is preferably a high-strength steel plate, has the characteristics of high strength, difficult deformation, pressure resistance and the like, and can bear the ballast load when an automobile passes through.
And step S006, repairing the construction window 101 at the top of the canal box 1 and recovering the pavement.
After the construction in the canal box 1 is completed, the canal box 1 can be restored, the canal box 1 top plate cut in the step S001 is placed at the construction window 101, the steel bars are bound in the construction window 101, the steel bars are welded with the steel bar heads 15 reserved around the construction window 101, after the welding is firmly completed, concrete is poured into the soil pit 10, C30 fine stone concrete is adopted for restoration, the high-strength steel plate can be taken down after the concrete strength in the soil pit 10 reaches the initial setting for 7 days, and the pavement is restored as is.
Compared with the prior art, the construction window 101 is formed in the top plate of the canal box 1, the supporting bars 12 and the high-strength steel plates are placed at the construction window 101, conditions are provided for opening traffic in daytime, meanwhile, the construction skylight is formed for entering the canal box 1, the underwater frog is matched with the underwater installation of the air bag 7 and the sealing wall 5, the air bag 7 and the brick wall enable water in the canal to be in a static state, the cofferdam 9 is arranged at the upstream position of the canal box 1 to block upstream water, the pumping device 8 is arranged to pump and exhaust, conditions are provided for subsequent plugging construction of the retaining wall 6, and finally, the permanent plugging effect is achieved by installing the retaining wall 6. Compared with the prior art, the invention does not need to drill a plurality of holes above the sewage pipe 4 or occupy a large area of field, thereby avoiding the damage of the drilling hole to the ground structure or pipeline. Be suitable for urban sewage pipe 4 shutoff construction under municipal main road, solved traditional pipeline shutoff construction and need occupy large tracts of land place, the mode of drilling is plugged the pipeline and is caused the destruction to ground structure easily, and the problem that can destroy other pipelines under ground probably.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments. The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310453698.1A CN116479981B (en) | 2023-04-24 | 2023-04-24 | A method for permanent sealing of sewage connection pipes inside a drainage box |
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| CN202310453698.1A CN116479981B (en) | 2023-04-24 | 2023-04-24 | A method for permanent sealing of sewage connection pipes inside a drainage box |
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| CN116479981B true CN116479981B (en) | 2026-01-09 |
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| CN119268774B (en) * | 2024-10-14 | 2025-10-03 | 长江生态环保集团有限公司 | Drainage pipe flow monitoring device and method |
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| CN207761040U (en) * | 2017-12-25 | 2018-08-24 | 上海建工二建集团有限公司 | One kind tearing formula rain sewage box culvert branch pipe temporary blocking device open |
| CN110629856A (en) * | 2019-09-25 | 2019-12-31 | 南方工程检测修复技术研究院 | Inspection well leakage repairing support tool, back pressure grouting device and repairing method |
| CN115094997B (en) * | 2022-06-11 | 2025-03-04 | 中建五局土木工程有限公司 | Construction method for plugging deep buried water-rich sewage pipe in deep foundation pit of subway station |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110747965A (en) * | 2019-10-31 | 2020-02-04 | 中铁十八局集团建筑安装工程有限公司 | Expansion-draw pipe construction process for reconstruction and expansion of drainage pipe network |
| CN112458932A (en) * | 2020-10-29 | 2021-03-09 | 上海市政工程设计研究总院（集团）有限公司 | Non-cutoff connection method for single-hole water diversion box culvert |
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