CN111021505A - Sewer drainage structures for municipal works - Google Patents
Sewer drainage structures for municipal works Download PDFInfo
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- CN111021505A CN111021505A CN201911416963.9A CN201911416963A CN111021505A CN 111021505 A CN111021505 A CN 111021505A CN 201911416963 A CN201911416963 A CN 201911416963A CN 111021505 A CN111021505 A CN 111021505A
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- Prior art keywords
- pipe
- main flow
- water
- flow pipeline
- pipeline
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
Abstract
The invention discloses a sewer drainage structure for municipal engineering, which comprises a main flow pipeline and a plurality of small water pools excavated along the length direction of the main flow pipeline, wherein the small water pools are positioned below the main flow pipeline; a section steel frame or a steel pipe frame is fixedly arranged in the small water tank, a steel plate is laid on the top surface of the small water tank, the steel plate is vertically supported through the section steel frame or the steel pipe frame, and the upper plate surface of the steel plate is attached to the bottom of the main flow pipeline; a drain pipe is arranged along the length direction of the main flow pipeline, the drain pipe is positioned above the ground, and the length direction of the drain pipe is inclined to the ground level; and a water pump and a bypass pipe are arranged between the drain pipe and the small water pool. This sewer drainage structure can realize shunting the rainwater in the mainstream pipeline when torrential rain, and then prevents because the mainstream pipeline can't in time effectively discharge the rainwater, and lead to in the mainstream pipeline rainwater backward flow to the tributary pipeline, and then causes surface gathered water, causes the traffic problem.
Description
Technical Field
The invention belongs to the technical field of municipal construction facilities, and particularly relates to a sewer drainage structure for municipal engineering.
Background
The sewer in the city generally comprises branch pipelines and main flow pipelines, a plurality of branch pipelines are communicated with each functional area of the city, such as houses, office buildings, pavements, industrial plants and the like, rainwater and sewage are collected through the branch pipelines and then drained to the main flow pipelines, and finally the rainwater and sewage are drained to a sewage treatment plant or river, lake and sea through the main flow pipelines. The existing dry flow pipeline generally adopts a direct drainage mode, namely the elevation of the inlet of the dry flow pipeline is higher than that of the outlet, and rain sewage mixed with impurities flows from the higher end of the dry flow pipeline to the lower end of the dry flow pipeline. However, once the heavy rainfall exceeds the designed drainage limit of the main flow pipeline, the main flow pipeline cannot drain and discharge rain sewage in time, and the rain sewage of the branch pipeline gradually begins to flow back. Especially, the branch pipeline at the position with lower elevation loses the drainage function firstly, for example, the branch pipeline for urban road drainage loses efficacy, which causes a large amount of water accumulation on the road surface and leads to traffic obstruction.
The above-mentioned problem of rain sewage backflow is caused by the design of the main flow pipeline. With the rapid expansion of cities, the main flow pipelines under the cities can not meet the existing requirements, but because the main flow pipelines are built earlier and basically buried under the ground, buildings or structures are built on the ground at the upper parts of the pipelines along with the expansion of the cities, and the mode of replacing the main flow pipelines by adopting the expanded design is not practical at all in some central urban areas. Therefore, most of the existing main flow pipelines can only continue to maintain the current situation, and once rainstorm occurs, water still continues to be accumulated on part of urban road surfaces, so that traffic paralysis is caused.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a sewer drainage structure for municipal engineering, which can quickly drain rainwater and sewage in a main flow pipeline under the condition of not replacing the main flow pipeline, further solve the backflow problem of a branch pipeline and synchronously solve the problem of water accumulation on a road surface during rainstorm.
The technical scheme of the invention is as follows: a sewer drainage structure for municipal engineering comprises a main flow pipeline; the system also comprises a plurality of small water pools excavated along the length direction of the main flow pipeline, wherein the small water pools are positioned below the main flow pipeline; cast-in-place concrete plates are laid on the bottom surface and the peripheral side walls of the small water pool, and joints of all the cast-in-place concrete plates are sealed through cement mortar; a section steel frame or a steel pipe frame is fixedly arranged in the small water tank, a steel plate is laid on the top surface of the small water tank, the steel plate is vertically supported through the section steel frame or the steel pipe frame, and the upper plate surface of the steel plate is attached to the bottom of the main flow pipeline;
the bottom of the dry flow pipeline, which is opposite to the small water pool from top to bottom, is provided with a water drainage hole, the steel plate is provided with a water leakage hole, and the water drainage hole is correspondingly communicated with the water leakage hole from top to bottom; a drainage pipe is arranged along the length direction of the main flow pipeline, the drainage pipe is positioned above the ground, the length direction of the drainage pipe is inclined to the ground level, and the water outlet end of the drainage pipe is communicated with an urban river channel or a structure capable of temporarily storing water; a water pump and a bypass pipe are arranged between the drain pipe and the small water pool, the lower end of the bypass pipe extends into the small water pool, and the upper end of the bypass pipe is communicated with a water inlet of the water pump; and the water outlet of the water pump is communicated with a drain pipe.
Further: the shape of the plate surface of the steel plate is concave or circular, and the plate surface of the steel plate is matched with the outer peripheral surface of the bottom of the main flow pipeline.
Further: and a one-way check valve is arranged on the bypass pipe and used for preventing the water flow oil drain pipe from flowing backwards and flowing back to the small water pool.
Further: the outside cover of bypass pipe is equipped with a sleeve pipe, and the lower extreme of this sleeve pipe extends to small-size pond bottom, and the upper end of sleeve pipe extends to above ground.
Further: the inner pipe diameter of the sleeve is larger than the outer pipe diameter of the bypass pipe.
Further: the inner diameter of the sleeve is twice the outer diameter of the bypass pipe.
The beneficial effect of this scheme: the invention discloses a sewer drainage structure for municipal engineering. And simultaneously, a water drainage hole is formed in the main flow pipeline, and water in the main flow pipeline is drained to the small water pool through the water drainage hole. And arranging a drain pipe on the ground, pumping the water in the small pool into the drain pipe through a water pump and a bypass pipe, and finally shunting the water in the main flow pipeline through the drain pipe. Through the combination of some above-mentioned lists, can realize shunting the rainwater in the main flow pipeline. To some inconvenient excavation change trunk line's region, through above-mentioned structure, can realize when the torrential rain, reposition of redundant personnel to the rainwater in the trunk line, and then prevent because the unable effective discharge rainwater of trunk line, and lead to the rainwater backward flow in the trunk line to the tributary pipeline in, and then cause surface gathered water, cause the traffic problem.
According to the invention, the steel plate is laid on the top of the small-sized water pool, the steel plate is supported by using the steel frame or the steel pipe frame, and the main flow pipeline is supported by using the steel plate, so that the main flow pipeline is likely to be partially settled and damaged if the main flow pipeline is not supported by using the steel plate. Simultaneously the steel sheet still plays filterable effect, and the discharge opening of great impurity accessible drier line and the hole that leaks of steel sheet carry out the separation, prevent that great impurity from getting into small-size pond, and then cause the water pump to block up.
For the shape of the steel plate, in order to effectively support the main flow pipeline, the steel plate is designed into an arc shape or a concave shape aiming at the shape of the existing general main flow pipeline, so that the plate surface of the steel plate can be better attached to the bottom of the main flow pipeline, and the main flow pipeline is further better fixed by utilizing a steel builder or a steel pipe frame through the steel plate, so that the main flow pipeline is prevented from generating local settlement at a small water pool, and the main flow pipeline is effectively protected. The invention also optimizes the sleeve, can observe the water level in the small pool by using the sleeve, is convenient to replace and maintain the bypass pipe by using the sleeve, and reduces the later maintenance and use cost.
Drawings
FIG. 1 is a schematic view of a layout structure of a small pool in the present invention;
fig. 2 is an enlarged schematic view of a steel plate mounting structure in the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in figures 1 and 2, the invention discloses a sewer drainage structure for municipal engineering. Firstly, by inquiring the completion drawing of the existing urban comprehensive pipe network, the line of the main flow pipeline 4 needing to be reconstructed at present is selected and determined. Particularly for the road surface which can not be constructed and replaced the main flow pipeline 4 in a short time and is always accumulated water when rainstorm occurs. After the path of the main flow pipeline 4 needing to be modified is determined, a plurality of square foundation pits with the size of 3m multiplied by 3m or round foundation pits with the diameter of 3m are dug in the length direction of the main flow pipeline 4. Whether the foundation pit is a rectangular foundation pit or a circular foundation pit, the bottom of the foundation pit is equal to the upper surface of the main flow pipeline 4, and the foundation pit is excavated until the main flow pipeline 4 is exposed. Then, the personnel and the machinery are put into the foundation pit to continue to operate in a quarterly mode, the underground excavation method is adopted, after the main flow pipeline 4 is vertically and downwards bypassed along the foundation pit, downward excavation is continuously carried out until a small water pool 6 is formed, and the small water pool 6 is located at the lower portion of the main flow pipeline 4. After the small water pool 6 is excavated, precast concrete plates are respectively paved on the bottom and the peripheral side wall of the small water pool 6, and then cement mortar is used for fixedly sealing the precast concrete plates 8. After the cement mortar is condensed, the top surface of the small water pool 6 is sealed by a steel plate 9.
In this case, the steel sheet 9 is 10mm thick, a plurality of holes 91 that leak have been seted up on steel sheet 9's the face, steel sheet 9 adopts type steelframe 7 or steel pipe frame to erect fixedly, steel sheet 9's last face closely laminates with going to the fields of dry flow pipeline 4, utilize type steelframe 7 or steel pipe frame to carry out vertical braces to steel sheet 9, and steel sheet 9 carries out vertical braces to dry flow pipeline 4, prevent that dry flow pipeline 4 from taking place the local settlement in small-size pond 6 department, utilize steel sheet 9 to prevent that impurity from getting into in the small-size pond 6 simultaneously. After the steel plate 9 is installed, a plurality of drainage holes 41 are drilled at the bottom of the main flow pipeline 4 corresponding to the small water pool 6 from top to bottom, so that water in the main flow pipeline 4 can flow to the steel plate 9 through the drainage holes 41 and flow into the small water pool 6 through the drainage holes 91 on the steel plate 9.
And finally, a bypass pipe 5 is vertically arranged along the foundation pit, the bottom of the bypass pipe 5 is downwards inserted into the bottom of the small water pool 6, and the upper port of the bypass pipe 5 extends to the position above the ground. The upper port of the bypass pipe 5 is sequentially communicated with a water pump 2 and a one-way check valve 3 from top to bottom, meanwhile, a drain pipe 1 is arranged on the ground along the length direction of a main flow pipeline, the drain pipe 1 can be a 500mm HDEP double-wall corrugated pipe, meanwhile, the drain pipe 1 is obliquely arranged on the ground through a support, and the water outlet end of the drain pipe 1 is communicated to an urban river channel or a structure capable of temporarily storing water. The upper port of the bypass pipe 5 extends to the upper part of the ground and then is communicated with the one-way check valve 3, the water inlet of the water pump 2 is communicated with the one-way check valve 3, and the water outlet of the water pump 2 is communicated with the water discharge pipe 1.
After the installation of the bypass pipe 5 is completed, the foundation pit is backfilled and the road surface is restored. The following explains the sewer drainage structure in the present case in a specific embodiment: when rainstorm occurs, rainwater firstly flows into the main flow pipeline 4 after being collected through the branch pipeline, and if the amount of rainwater collected into the main flow pipeline 4 exceeds the designed bearing limit of the main flow pipeline 4, the rainwater can gradually flow back from the lower part of the main flow pipeline 4 to the higher part. At this time, the water pump 2 on the ground is started, and the small water pool 6 has a water storage function, so that the water in the small water pool 6 submerges the bypass pipe 5 as long as the main flow pipeline 4 works, and the water pump 2 is prevented from being damaged due to dry burning. If there is no small water pool 6, the bypass pipe 5 is directly inserted into the main flow pipe 4, and since the rainwater in the main flow pipe 4 is always in a flowing state, the water pump 2 will not be carried under full load or even evacuated, which is why the rainwater in the main flow pipe 4 cannot be quickly and effectively extracted by the water pump 2 at present. Also, a pump-down, i.e. a dry running, of the water pump 2 may lead to a rapid deterioration of the water pump 2.
After the water pump 2 pumps the water in the small water pool 6 to the water discharge pipe 1 on the ground, the water discharge pipe 1 drains the rainwater to the city river or other places. Like this, just can realize fast effectual reposition of redundant personnel to the rainwater in the dry current pipeline 4, and then prevent that the rainwater backward flow that the dry current felt flows backward to tributary pipeline. In this optimized scheme, the one-way check valve 3 arranged on the bypass pipe 5 can effectively prevent rainwater from flowing back into the small-sized water pool 6 through the bypass pipe 5. Although the arrangement of the drain pipe 1 on the road surface may form an obstacle to the passage of the road surface, the obstacle is within the acceptable range of people as compared with the case where the road surface is blocked due to heavy rain.
In the present embodiment, the bypass pipe 5 is provided with a sleeve 10, wherein the sleeve 10 is substantially sleeved outside the bypass pipe 5, the lower end of the sleeve 10 extends to the bottom of the small water pool 6, and the upper end of the sleeve extends to above the ground. This is facilitated by the sleeve 10 when the bypass tube 5 needs to be replaced and maintained, since the sleeve 10 provides a fixed access space for the bypass tube 5. Meanwhile, in the present case, the inner diameter of the casing 10 is set to be more than twice the outer diameter of the bypass pipe 5. The gap between the sleeve 10 and the bypass duct 5 can be used to monitor the water level in the mini pool 6. In practice, the cross section of the main flow pipe 4 is generally rectangular or circular, and the main flow pipe is more circular. Therefore, in this case, the shape of the surface of the steel plate 9 is set to match the outer peripheral surface of the bottom of the main flow duct 4. The face shape of steel sheet 9 can set up to character cut in bas-relief or arc, and steel sheet 9 just can be better like this carries out effectual support to dry flow pipeline 4, prevents that dry flow pipeline 4 part from sinking. And meanwhile, laying an iron block 11 on the ground of the small-sized water pool 6, then vertically supporting the section steel frame 7 or the steel pipe frame through the iron block 11, and vertically supporting the steel plate 9 by using the section steel frame 7 or the steel pipe frame.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A sewer drainage structure for municipal works, comprising a main flow pipe (4); the method is characterized in that: the device is characterized by also comprising a plurality of small water pools (6) excavated along the length direction of the main flow pipeline (4), wherein the small water pools (6) are positioned below the main flow pipeline (4); cast-in-place concrete plates are laid on the bottom surface and the peripheral side walls of the small pool (6), and joints of all the cast-in-place concrete plates are sealed through cement mortar; a section steel frame (7) or a steel pipe frame is fixedly arranged in the small water pool (6), a steel plate (9) is laid on the top surface of the small water pool (6), the steel plate (9) is vertically supported through the section steel frame (7) or the steel pipe frame, and the upper plate surface of the steel plate (9) is attached to the bottom of the main flow pipeline (4);
the bottom of the dry flow pipeline (4) which is opposite to the small water pool (6) is provided with a water drainage hole (41), the steel plate (9) is provided with a water drainage hole (91), and the water drainage hole (41) is communicated with the water drainage hole (91) in a vertically corresponding manner; a drain pipe (1) is arranged along the length direction of the main flow pipeline (4), the drain pipe (1) is positioned above the ground, the length direction of the drain pipe (1) is inclined to the ground level, and the water outlet end of the drain pipe (1) is communicated with an urban river channel or a structure capable of temporarily storing water; a water pump (2) and a bypass pipe (5) are arranged between the drain pipe (1) and the small water pool (6), the lower end of the bypass pipe (5) extends into the small water pool (6), and the upper end of the bypass pipe (5) is communicated with a water inlet of the water pump (2); and the water outlet of the water pump (2) is communicated with the drain pipe (1).
2. The sewer drainage structure for municipal works according to claim 1, wherein: the shape of the plate surface of the steel plate (9) is concave or circular, and the plate surface of the steel plate (9) is matched with the outer peripheral surface of the bottom of the main flow pipeline (4).
3. The sewer drainage structure for municipal works according to claim 1, wherein: the bypass pipe (5) is provided with a one-way check valve (3), and the one-way check valve (3) prevents the water flow and oil drain pipe (1) from flowing backwards and flowing back to the small water pool (6).
4. The sewer drainage structure for municipal works according to any one of claims 1 to 3, wherein: the outside cover of bypass pipe (5) is equipped with a sleeve pipe (10), and the lower extreme of this sleeve pipe (10) extends to small-size pond (6) bottom, and the upper end of sleeve pipe (10) extends to above ground.
5. The sewer drainage structure for municipal works according to claim 4, wherein: the inner pipe diameter of the sleeve (10) is larger than the outer pipe diameter of the bypass pipe (5).
6. The sewer drainage structure for municipal works according to claim 5, wherein: the inner diameter of the sleeve (10) is twice of the outer diameter of the bypass pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416963.9A CN111021505A (en) | 2019-12-31 | 2019-12-31 | Sewer drainage structures for municipal works |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416963.9A CN111021505A (en) | 2019-12-31 | 2019-12-31 | Sewer drainage structures for municipal works |
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| Publication Number | Publication Date |
|---|---|
| CN111021505A true CN111021505A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911416963.9A Pending CN111021505A (en) | 2019-12-31 | 2019-12-31 | Sewer drainage structures for municipal works |
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| CN (1) | CN111021505A (en) |
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| CN204491814U (en) * | 2015-02-11 | 2015-07-22 | 武汉圣禹排水系统有限公司 | Rainwater Quality controls system of regulating and storing |
| CN104847010B (en) * | 2015-03-23 | 2017-03-15 | 重庆大学 | A kind of miniature groundwater reservoir in city and construction method |
| CN206034604U (en) * | 2016-08-27 | 2017-03-22 | 浙江实强建设有限公司 | Municipal drainage pipe way |
| CN206128253U (en) * | 2016-08-30 | 2017-04-26 | 卓达房地产集团有限公司 | Urban drainage pipe network collection yu jiao pond |
| CN207959417U (en) * | 2017-09-30 | 2018-10-12 | 武汉圣禹排水系统有限公司 | A kind of road rain water processing system |
| CN109555207A (en) * | 2018-07-27 | 2019-04-02 | 武汉圣禹排水系统有限公司 | The governing system and method for the pipeline being connected to natural water |
| CN109763552A (en) * | 2018-12-27 | 2019-05-17 | 中建三局集团有限公司 | A kind of basis is dark to apply gravity type draining regeneration application system and its construction method |
| CN209099505U (en) * | 2018-10-26 | 2019-07-12 | 苏州北建节能技术有限公司 | A kind of rainwater utilization system based on municipal storm sewer |
| KR102058210B1 (en) * | 2019-04-09 | 2019-12-20 | 주식회사 태원콘크리트 | Irrigation pipe with storage tank |
-
2019
- 2019-12-31 CN CN201911416963.9A patent/CN111021505A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204491814U (en) * | 2015-02-11 | 2015-07-22 | 武汉圣禹排水系统有限公司 | Rainwater Quality controls system of regulating and storing |
| CN104847010B (en) * | 2015-03-23 | 2017-03-15 | 重庆大学 | A kind of miniature groundwater reservoir in city and construction method |
| CN206034604U (en) * | 2016-08-27 | 2017-03-22 | 浙江实强建设有限公司 | Municipal drainage pipe way |
| CN206128253U (en) * | 2016-08-30 | 2017-04-26 | 卓达房地产集团有限公司 | Urban drainage pipe network collection yu jiao pond |
| CN207959417U (en) * | 2017-09-30 | 2018-10-12 | 武汉圣禹排水系统有限公司 | A kind of road rain water processing system |
| CN109555207A (en) * | 2018-07-27 | 2019-04-02 | 武汉圣禹排水系统有限公司 | The governing system and method for the pipeline being connected to natural water |
| CN209099505U (en) * | 2018-10-26 | 2019-07-12 | 苏州北建节能技术有限公司 | A kind of rainwater utilization system based on municipal storm sewer |
| CN109763552A (en) * | 2018-12-27 | 2019-05-17 | 中建三局集团有限公司 | A kind of basis is dark to apply gravity type draining regeneration application system and its construction method |
| KR102058210B1 (en) * | 2019-04-09 | 2019-12-20 | 주식회사 태원콘크리트 | Irrigation pipe with storage tank |
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Application publication date: 20200417 |