CN114908856A - Auxiliary well structure for connecting newly-built pipeline with existing well chamber and construction method thereof - Google Patents
Auxiliary well structure for connecting newly-built pipeline with existing well chamber and construction method thereof Download PDFInfo
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- CN114908856A CN114908856A CN202210670310.9A CN202210670310A CN114908856A CN 114908856 A CN114908856 A CN 114908856A CN 202210670310 A CN202210670310 A CN 202210670310A CN 114908856 A CN114908856 A CN 114908856A
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- 238000010276 construction Methods 0.000 title claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims abstract description 6
- 238000009412 basement excavation Methods 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 235000020681 well water Nutrition 0.000 claims abstract description 4
- 239000002349 well water Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 12
- 230000009194 climbing Effects 0.000 claims description 2
- 230000009189 diving Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Public Health (AREA)
- Hydrology & Water Resources (AREA)
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses an auxiliary well structure for connecting a newly-built pipeline with a current well chamber and a construction method thereof, wherein the auxiliary well structure comprises the following steps: constructing a pit supporting structure of the auxiliary well, and picking a slope or steel sheet pile supporting structure according to the excavation depth; constructing an auxiliary well on the side to be connected of the current reinforced concrete well chamber; the position of the connection point is determined according to the water supply and drainage design; drilling holes in a layered mode by adopting a water mill drill, and finally breaking the residual wall with the thickness of 40-60mm underwater once before water is supplied after all construction is finished; the construction and test detection work of all pipelines and well rooms are finished, and the water supply condition is achieved; filling water into the auxiliary well until the water level is consistent with the current reinforced concrete well water level; and the diver breaks the part with the residual wall thickness underwater to realize the communication between the newly-built pipeline and the current reinforced concrete well chamber. Most of the connection work is carried out under the dry operation condition in the auxiliary well, so that the construction operation condition is greatly improved, the construction operation is simple and convenient, the construction is safe, the construction period is short, and the construction cost is low.
Description
Technical Field
The invention relates to the technical field of municipal drainage construction, in particular to an auxiliary well structure for connecting a newly-built pipeline with a current well chamber and a construction method thereof.
Background
The condition that a newly-built pipeline is connected with a current reinforced concrete well chamber (including an underground channel) generally exists in the urban drainage pipeline construction process, the current reinforced concrete well chamber (including the underground channel) is complex and various and is located underground, and the condition is difficult to detect, so that great challenge is brought to the connection of the newly-built pipeline and the current reinforced concrete well chamber (including the underground channel).
The existing construction process for connecting a newly-built pipeline with a current reinforced concrete well chamber (including an underground channel) mainly comprises the following steps: (1) the existing reinforced concrete well room (including an underground canal) is plugged by air bags or walling before and after being manually put into a well and removed by chiseling; (2) under the condition of water supply, a diver goes into a well and then chisels off underwater, for example, a construction method for connecting a newly-built sewage pipe and an existing sewage pipe is disclosed in Chinese patent CN 202010053573.6; (3) under the condition of water supply, an underwater rope saw is adopted to cut and hang out of a well chamber, for example, a large-diameter underground reinforced concrete water supply and drainage pipe non-stop water connection device disclosed in Chinese patent CN 201821950675.2; the method has the characteristics of large plugging and diversion engineering quantity, large influence on the current drainage system, long underwater operation time, high safety risk and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an auxiliary well structure for connecting a newly-built pipeline with a current well chamber and a construction method thereof, so as to achieve the purposes of simple and convenient construction operation and safe construction.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a newly-built pipeline attaches well structure with what current situation well room plugged into, attach the well structure setting between newly-built pipeline and current situation well room, attach the well structure including attaching the well basis and attaching the well wall and attaching the well apron, attach the well wall of a well and establish on attaching the well basis, attach the well lid board and establish at the top that attaches the well wall of a well, attach one side of the well wall of a well and link to each other with the current situation well wall of current situation well room, be equipped with the trompil that is used for communicateing the current situation well room and attaches the well on the current situation well wall of a well, attach the opposite side of the well wall of a well and link to each other with the tip of newly-built pipeline.
And an auxiliary well cushion layer is arranged on the auxiliary well foundation, and the wall of the auxiliary well is arranged on the auxiliary well cushion layer.
And an auxiliary well shaft is arranged on the auxiliary well cover plate, and an auxiliary well cover which is parallel and level with the ground is arranged at the top of the auxiliary well shaft.
And the current well wall is provided with embedded bars connected with the well wall of the auxiliary well.
The wall of the auxiliary well is a square well wall structure with an opening at one side.
And the inner walls of the well wall of the auxiliary well and the well shaft of the auxiliary well are provided with corresponding climbing ladders up and down.
A construction method of an auxiliary well structure for connecting a newly-built pipeline with an existing well chamber comprises the following steps:
the method comprises the following steps: constructing a pit supporting structure of the auxiliary well, and picking a slope or steel sheet pile supporting structure according to the excavation depth;
step two: constructing an auxiliary well on the side to be connected of the current reinforced concrete well chamber;
step three: the position of the connection point is determined according to the water supply and drainage design;
step four: drilling holes in a layered mode by adopting a water mill drill, and finally breaking the residual wall with the thickness of 40-60mm underwater once before water is supplied after all construction is finished;
step five: the construction and test detection work of all pipelines and well rooms are finished, and the water supply condition is achieved;
step six: filling water into the auxiliary well until the water level is consistent with the current reinforced concrete well water level;
step seven: and the diver breaks the part with the residual wall thickness underwater to realize the communication between the newly-built pipeline and the current reinforced concrete well chamber.
The supporting structure comprises a steel sheet pile, a bracket and an enclosing purlin, wherein the enclosing purlin is arranged on the inner side of the steel sheet pile through the bracket, and a safety railing is arranged at the top of the steel sheet pile.
Compared with the prior art, the invention has the following advantages:
the well attaching structure for connecting the newly-built pipeline with the current well chamber and the construction method thereof have reasonable design, most of the connection work is carried out under the dry operation condition in the well attaching, the construction operation condition is greatly improved, the life safety of construction operation personnel is ensured, the construction quality is visible and controllable, the construction operation is simple and convenient, the construction is safe, the construction period is short, and the construction cost is low.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic plan view of the well attachment structure of the present invention.
Fig. 2 is a schematic sectional view taken along a-a in fig. 1.
Fig. 3 is a schematic sectional view taken along B-B in fig. 1.
FIG. 4 is an enlarged view of the opening of the present invention.
In the figure:
1-well attaching cushion layer, 2-well attaching foundation, 3-well attaching wall, 4-well attaching cover plate, 5-well attaching shaft, 6-well attaching cover plate, 7-newly built pipeline, 8-current well wall, 9-hole opening, 10-steel bar planting, 11-steel sheet pile, 12-bracket, 13-enclosing purlin, 14-corner brace, 15-safety railing, 16-ladder stand and 17-launder.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the additional well structure for connecting the newly-built pipeline with the existing well chamber is arranged between the newly-built pipeline and the existing well chamber; the well attaching structure comprises a well attaching foundation 2, a well attaching wall 3 and a well attaching plate 4, wherein the well attaching wall is arranged on the well attaching foundation, the well attaching plate is arranged at the top of the well attaching wall, one side of the well attaching wall is connected with a current well wall 8 of a current well chamber, an opening 9 for communicating the current well chamber with the well attaching wall is arranged on the current well wall, and the other side of the well attaching wall is connected with the end part of a newly-built pipeline 7.
The auxiliary well wall 3 is a square well wall structure with an opening at one side, an auxiliary well cushion layer 1 is arranged on the auxiliary well foundation, and the auxiliary well wall is arranged on the auxiliary well cushion layer.
The well-attaching well cover plate is provided with a well-attaching shaft 5, and the top of the well-attaching shaft is provided with a well-attaching well cover 6 which is level with the ground, so that the cost is reduced, and the construction is simple and convenient; and the inner walls of the well wall and the well shaft of the auxiliary well are provided with corresponding ladders up and down, so that construction is facilitated.
The invention relates to a construction method of an auxiliary well structure for connecting a newly-built pipeline with a current well chamber, which comprises the following steps:
the method comprises the following steps: constructing a pit supporting structure of the auxiliary well, and picking a slope or steel sheet pile supporting structure according to the excavation depth;
step two: constructing an auxiliary well on the side to be connected of the current reinforced concrete well chamber;
step three: the position of the connection point is determined according to the water supply and drainage design;
step four: drilling holes in a layered mode by adopting a water mill drill, and finally breaking the residual wall with the thickness of 40-60mm underwater once before water is supplied after all construction is finished;
step five: the construction and test detection work of all pipelines and well rooms are finished, and the water supply condition is achieved;
step six: filling water into the auxiliary well until the water level is consistent with the current reinforced concrete well water level;
step seven: and the diver breaks the part with the residual wall thickness underwater to realize the communication between the newly-built pipeline and the current reinforced concrete well chamber.
The supporting structure comprises a steel sheet pile 11, a bracket 12 and an enclosing purlin 13, the enclosing purlin is arranged on the inner side of the steel sheet pile through the bracket, and a safety rail 15 is arranged at the top of the steel sheet pile; and the corner is provided with a corner support 14, so that the structure is stable and reliable.
Most of the connection work of the invention is carried out under the dry operation condition in the auxiliary well, thereby greatly improving the construction operation condition, ensuring the life safety of construction operators, having visible and controllable construction quality, simple and convenient construction operation, safe construction, short construction period and low construction cost.
Preferred specific examples are:
the existing U-shaped auxiliary well for connection is implemented beside the reinforced concrete well chamber, the size of the U-shaped auxiliary well is reasonably determined according to the connection water passing section and the construction space requirement, and the contact surface of the U-shaped auxiliary well and the existing reinforced concrete well chamber is subjected to bar planting and roughening to ensure that the joint is tight and prevent water leakage. And (2) performing connection operation of the current reinforced concrete well chamber (including an underground canal) in the U-shaped auxiliary well, performing hole taking and breaking on the current well wall by adopting a water mill drill in a layering manner until the remaining 50mm is removed once when all construction is finished and has a water passing condition, wherein the construction is performed under a dry construction condition, and the current reinforced concrete well chamber keeps normal operation. And then, performing top plate and ground recovery construction of the auxiliary well and corresponding test detection, after the construction of upstream and downstream pipelines is finished and water passing conditions are met, injecting water into the auxiliary well and the communicated downstream pipelines until the water level is consistent with the water level in the current reinforced concrete well chamber, and sinking the auxiliary well into the auxiliary well by diving a diver to form a current well wall with the thickness of 50mm, so that water passing between the newly-built pipeline and the current reinforced concrete well chamber is completed.
The newly-built auxiliary well of this scheme is as the permanent structure of the water service condition also as the supporting construction of trompil operation face, has reduced temporary support live time and foundation ditch exposure time than conventional construction, has reduced the safety risk. The existing well wall is perforated under the dry operation condition in the auxiliary well, and a water mill drilling hole-taking breaking process is adopted, so that the breaking section is visible and controllable, and the construction quality and safety can be effectively ensured. Finally, the 50mm thick well wall is broken by a diver underwater for breaking water through at one time, so that compared with conventional construction, the amount of drainage engineering is greatly reduced, or underwater operation time of the diver is shortened, and construction safety is effectively guaranteed. Each process before the final 50mm breaking can be synchronously constructed with other pipe wells, and the time of the auxiliary well and the connection construction occupying the key construction period is only the time of the final 50mm breaking, so that the construction period can be effectively shortened, and the cost is reduced.
As shown in fig. 2, the well attaching structure comprises a well attaching cushion layer, a well attaching foundation, a well attaching wall, a well attaching cover plate, a well attaching shaft and a well attaching cover; firstly, a foundation pit supporting structure, an auxiliary well cushion layer 1, an auxiliary well foundation 2 and an auxiliary well wall 3 are constructed in sequence according to design and standard requirements. In the embodiment, the excavation depth of the foundation pit is 3 meters, Larsen type IV steel plate piles with the length of 9 meters are adopted as the steel plate piles, the surrounding purlins 13 and the angle braces 14 are made of profile steel, and the brackets are welded on the steel plate piles by steel plates at intervals of 80 cm; the well-attached cushion layer 1 is made of concrete with the thickness of 100mmC15, and the plane size is 2300mm multiplied by 2300 mm; the well foundation 2 is made of reinforced concrete with the thickness of 300mmC30, and the plane size is 2200mm multiplied by 2200 mm; the wall 3 of the auxiliary well adopts reinforced concrete with the thickness of 250mmC30, and the clearance dimension is 1500mm multiplied by 1500 mm; when the construction attaches the well wall 3, attach the well wall 3 and need carry out the chisel hair processing with the contact surface between the current situation well wall 8 to bar planting on the current situation well wall, as shown in fig. 1, bar planting adopts the reinforcing bar, and the interval is 200mm, and the bar planting degree of depth 250mm exposes 250 mm.
As shown in fig. 3, the connection construction process of the newly-built pipeline and the existing reinforced concrete well chamber (including the closed conduit) includes: constructing a foundation pit supporting structure and an attached well wall 3 (containing embedded bars and joint sealing treatment), backfilling after the attached well construction is finished, and removing the foundation pit supporting structure; the water grinding drill breaks away the first layer of current well wall; the second layer of current well wall is broken through by the water grinding drill; step four: the construction crawling ladder 16, the launder 17, the well cover attaching plate 4, the well attaching shaft 5 and the well cover attaching plate 6 are arranged; injecting water into the well wall 3 of the auxiliary well and the newly-built pipeline 7 for flat pressing; the diver breaks the left 50mm thick current well wall underwater.
The water mill drill is used for removing the core, and is fixed on the current well wall through the expansion screw, so that a fixed base and counter force are provided for the water mill drill to drill. The drilling depth of the water mill drill is strictly controlled, the drilling depth is ensured to be consistent, the broken section is smooth, and the water penetration accident caused by drilling through the deep drill drift wall is prevented. When the operating personnel works underground, a specially-assigned person is required to monitor, emergency rescue materials and equipment are prepared aboveground, and rescue is carried out immediately once an accident happens.
When the diver breaks the existing well wall with the thickness of 50mm underwater, the diver adopts an underwater pneumatic pick to select experienced professional divers, and before the diver goes into the well, the diver needs to carry out safety technology background crossing to check that diving equipment is intact and has normal functions. The diver goes into the well and should wear safety rope, long tube breathing machine, communication cable and microphone, and the dive operation strictly follows safe operating rules.
The invention has the following advantages: 1. the construction is dry, the underwater operation time is reduced to the maximum extent: most of the connection work is carried out under the dry operation condition in the auxiliary well, so that the construction operation condition is greatly improved, the underwater operation time is reduced to the maximum extent, and the life safety of construction operators is ensured; 2. the construction quality is visible and controllable: due to dry operation construction, the whole construction process can be carried out under the monitoring of field technical quality managers, and the control of the connection and tapping construction quality is facilitated, so that the construction quality is improved; 3. the construction safety is more guaranteed: due to dry operation construction, the whole construction process can be carried out under the monitoring of on-site safety management personnel, so that the safety management of the connection and tapping construction is facilitated, and the construction safety is effectively ensured; 4. the construction period is short, and the construction cost is low: the existing well wall water mill before the well is attached and finally broken by 50mm is drilled with holes to be broken and constructed with the pipeline simultaneously, so that the construction period can be shortened, and the construction cost can be reduced.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (8)
1. The utility model provides a newly-built pipeline attaches well structure with what current well room plugged into, attach the well structure setting between newly-built pipeline and current well room, its characterized in that: the well attaching structure comprises a well attaching foundation, a well attaching wall and a well attaching cover plate, wherein the well attaching wall is arranged on the well attaching foundation, the well attaching plate is arranged at the top of the well attaching wall, one side of the well attaching wall is connected with the current well wall of the current well chamber, an opening used for communicating the current well chamber with the well attaching wall is formed in the current well wall, and the other side of the well attaching wall is connected with the end part of a newly-built pipeline.
2. The additional well structure for connecting the newly-built pipeline with the existing well chamber according to claim 1, is characterized in that: and an auxiliary well cushion layer is arranged on the auxiliary well foundation, and the wall of the auxiliary well is arranged on the auxiliary well cushion layer.
3. The additional well structure for connecting the newly-built pipeline with the existing well chamber according to claim 1, is characterized in that: and an auxiliary well shaft is arranged on the auxiliary well cover plate, and an auxiliary well cover which is parallel and level with the ground is arranged at the top of the auxiliary well shaft.
4. The additional well structure for connecting the newly-built pipeline with the existing well chamber according to claim 1, is characterized in that: and the current well wall is provided with embedded bars connected with the well wall of the auxiliary well.
5. The additional well structure for connecting the newly-built pipeline with the existing well chamber according to claim 1, is characterized in that: the wall of the auxiliary well is a square well wall structure with an opening at one side.
6. The additional well structure for connecting the newly-built pipeline with the existing well chamber according to claim 3, wherein: and the inner walls of the well wall of the auxiliary well and the well shaft of the auxiliary well are provided with corresponding climbing ladders up and down.
7. A method of constructing a supplementary well structure in which a newly constructed pipe is connected to an existing well chamber according to any one of claims 1 to 6, comprising: the construction method comprises the following steps:
the method comprises the following steps: constructing a pit supporting structure of the auxiliary well, and picking a slope or steel sheet pile supporting structure according to the excavation depth;
step two: constructing an auxiliary well on the side to be connected of the current reinforced concrete well chamber;
step three: the position of a connection point is determined according to the design of water supply and drainage;
step four: drilling holes in a layered mode by adopting a water mill drill, and finally breaking the residual wall with the thickness of 40-60mm underwater once before water is supplied after all construction is finished;
step five: the construction and test detection work of all pipelines and well rooms are finished, and the water supply condition is achieved;
step six: pouring water into the auxiliary well until the water level is consistent with the current reinforced concrete well water level;
step seven: and the diver breaks the part with the residual wall thickness underwater to realize the communication between the newly-built pipeline and the current reinforced concrete well chamber.
8. The construction method as set forth in claim 7, wherein: the supporting structure comprises a steel sheet pile, a bracket and an enclosing purlin, wherein the enclosing purlin is arranged on the inner side of the steel sheet pile through the bracket, and a safety railing is arranged at the top of the steel sheet pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210670310.9A CN114908856A (en) | 2022-06-14 | 2022-06-14 | Auxiliary well structure for connecting newly-built pipeline with existing well chamber and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210670310.9A CN114908856A (en) | 2022-06-14 | 2022-06-14 | Auxiliary well structure for connecting newly-built pipeline with existing well chamber and construction method thereof |
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| CN114908856A true CN114908856A (en) | 2022-08-16 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150345523A1 (en) * | 2014-06-02 | 2015-12-03 | Momentum Environmental, LLC | Energy dissipator and associated system for use in sumped flow-through manholes |
| CN107859145A (en) * | 2017-11-17 | 2018-03-30 | 广州市自来水工程公司 | A kind of drainpipe is plugged into construction method under water |
| CN109208737A (en) * | 2018-10-09 | 2019-01-15 | 中铁十局集团城市轨道工程有限公司 | A kind of down-stream pipeline changes move in new pipe is plugged into and former pipe blocks construction method |
| CN209339279U (en) * | 2018-08-17 | 2019-09-03 | 中国中元国际工程有限公司 | A kind of hydraulic drop inspection shaft |
| CN111236387A (en) * | 2020-01-17 | 2020-06-05 | 中铁十二局集团有限公司 | Construction method for connecting newly-built sewage pipe with existing sewage pipe |
| WO2021196657A1 (en) * | 2020-04-03 | 2021-10-07 | 山东大学 | Novel fabricated anchorage structure serving as both dewatering well and support, and construction method |
| CN215926053U (en) * | 2021-04-26 | 2022-03-01 | 广西建工第一建筑工程集团有限公司 | In-situ water-supply-and-drainage pipe added connection well device without stopping water |
-
2022
- 2022-06-14 CN CN202210670310.9A patent/CN114908856A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150345523A1 (en) * | 2014-06-02 | 2015-12-03 | Momentum Environmental, LLC | Energy dissipator and associated system for use in sumped flow-through manholes |
| CN107859145A (en) * | 2017-11-17 | 2018-03-30 | 广州市自来水工程公司 | A kind of drainpipe is plugged into construction method under water |
| CN209339279U (en) * | 2018-08-17 | 2019-09-03 | 中国中元国际工程有限公司 | A kind of hydraulic drop inspection shaft |
| CN109208737A (en) * | 2018-10-09 | 2019-01-15 | 中铁十局集团城市轨道工程有限公司 | A kind of down-stream pipeline changes move in new pipe is plugged into and former pipe blocks construction method |
| CN111236387A (en) * | 2020-01-17 | 2020-06-05 | 中铁十二局集团有限公司 | Construction method for connecting newly-built sewage pipe with existing sewage pipe |
| WO2021196657A1 (en) * | 2020-04-03 | 2021-10-07 | 山东大学 | Novel fabricated anchorage structure serving as both dewatering well and support, and construction method |
| CN215926053U (en) * | 2021-04-26 | 2022-03-01 | 广西建工第一建筑工程集团有限公司 | In-situ water-supply-and-drainage pipe added connection well device without stopping water |
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