CN111424697A - Construction method for prefabricating deep and large open caisson by slicing - Google Patents
Construction method for prefabricating deep and large open caisson by slicing Download PDFInfo
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- CN111424697A CN111424697A CN202010309113.5A CN202010309113A CN111424697A CN 111424697 A CN111424697 A CN 111424697A CN 202010309113 A CN202010309113 A CN 202010309113A CN 111424697 A CN111424697 A CN 111424697A
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- arc
- open caisson
- shaped
- anchor rod
- pipe pieces
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
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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
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
- E02D19/185—Joints between sheets constituting the sealing aprons
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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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1607—Shapes round, e.g. circle
- E02D2200/1621—Shapes round, e.g. circle made from multiple elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Foundations (AREA)
Abstract
The invention belongs to municipal water supply and drainage engineering construction, and relates to a construction method for prefabricating a deep and large open caisson by segments, which comprises the following steps: (1) uniformly decomposing the open caisson into a plurality of arc sections in the horizontal direction, decomposing the open caisson into a rectangular block design in the vertical direction, and pouring concrete to form an arc-shaped duct piece; (2) arc bolt holes are reserved at the upper end, the lower end, the left side wall and the right side wall of the arc tube sheet respectively; (3) an anchor rod hole is formed in the middle of the arc-shaped duct piece; (4) arc splicing is carried out in the foundation pit in the horizontal direction through a plurality of arc-shaped pipe pieces, then the arc-shaped pipe pieces are spliced layer by layer from bottom to top, water stop strips are arranged at seams, and the arc-shaped pipe pieces are connected with each other through arc-shaped bolts to form an open caisson; (5) the arc-shaped duct piece is fixed on the wall of the foundation pit by the anchor rod penetrating through the anchor rod hole. The invention is suitable for manufacturing the open caisson in a gravel area with limited construction clearance, large underground water consumption, soft geology and reduced construction cost and improved construction quality.
Description
Technical Field
The invention belongs to municipal water supply and drainage engineering construction, and relates to a construction method for prefabricating a deep and large open caisson in a segmented manner.
Background
Along with the need of urban development and the maturity of pipe jacking technology, pipe jacking construction is increasing day by day, and open caisson construction is adopted for a working well and a receiving well more commonly. The existing water supply and drainage open caisson structure adopts a template to cast a concrete structure in situ, and is poured step by step in a ring mode, the locking phenomenon is easy to occur when the conventional open caisson is adopted for construction, the drainage and collapse quantity is large, the construction period is difficult to control, and the construction cost is high.
Disclosure of Invention
In order to solve the technical problem, the invention provides a construction method for prefabricating a deep and large open caisson in a slicing manner, which can realize the rapid forming of the open caisson.
The specific technical scheme is as follows: a construction method for prefabricating a deep and large open caisson by segments comprises the following steps: (1) uniformly decomposing the wall of the open caisson into a plurality of arc sections around the round shape of the open caisson in the horizontal direction, decomposing the wall of the open caisson into a rectangular block design in the vertical direction, and pouring concrete to form an arc-shaped duct piece; (2) arc bolt holes are reserved at the upper end, the lower end, the left side wall and the right side wall of each arc pipe piece respectively, and the bolt holes on two adjacent arc pipe pieces can be communicated; (3) an anchor rod hole is formed in the middle of the arc-shaped duct piece; (4) arc splicing is carried out in the foundation pit in the horizontal direction through a plurality of arc-shaped pipe pieces, then the arc-shaped pipe pieces are spliced layer by layer from bottom to top, water stop strips are arranged at seams, and the arc-shaped pipe pieces are connected with each other through arc-shaped bolts to form an open caisson; (5) the arc-shaped duct piece is fixed on the wall of the foundation pit by the anchor rod penetrating through the anchor rod hole.
Has the advantages that: by adopting the device, the construction process of the prior open caisson operation is changed from cast-in-place to prefabricated structure construction by casting and then sinking, the device is particularly suitable for manufacturing the open caisson in a gravel area with limited construction clearance, large underground water consumption and soft geology, and reduces the construction cost and improves the construction quality.
Drawings
FIG. 1 is a top view of an open caisson formed by arcuate segments in accordance with the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a plan view of a segment of a curved duct of the present invention;
FIG. 4 is an elevational view of a segment of the present invention;
wherein, 1, an arc-shaped duct piece; 2, arranging bolt holes; 3, arranging a bolt hole; 4 side bolt holes; 5, anchoring the bolt; 6, lining the open caisson two; 7 water stop strip.
Detailed Description
The segmented prefabrication structure of the deep and large open caisson shown in the figures 1-4 comprises a plurality of arc-shaped pipe pieces 1 which are rectangular and uniform, wherein after the arc-shaped pipe pieces 1 are mutually connected, a circular ring can be formed on a horizontal surface in a surrounding manner, and the open caisson is formed in the vertical direction; arc bolt holes are reserved at the upper end, the lower end, the left side wall and the right side wall of each arc-shaped duct piece 1 respectively, and two adjacent bolt holes can be connected in a through mode; two adjacent arc-shaped pipe pieces 1 are connected through an arc-shaped bolt; an anchor rod hole is formed in the front surface of the arc-shaped duct piece 1, an anchor rod 5 is arranged on the anchor rod hole, and the arc-shaped duct piece 1 is fixed on the pit wall of the foundation pit through the anchor rod 5; the arc-shaped duct piece is of a concrete structure.
And furthermore, 7 water stopping strips are arranged between every two adjacent arc-shaped pipe pieces and used for stopping water.
The construction method comprises the following steps: (1) uniformly decomposing the wall of the open caisson into a plurality of arc sections around the round shape of the open caisson in the horizontal direction, decomposing the wall of the open caisson into a rectangular block design in the vertical direction, and pouring concrete to form an arc-shaped duct piece 1; (2) arc bolt holes are reserved at the upper end, the lower end, the left side wall and the right side wall of each arc-shaped duct piece 1 respectively, and the bolt holes on two adjacent arc-shaped duct pieces 1 can be communicated; (3) an anchor rod hole is arranged in the middle of the arc-shaped duct piece 1; (4) arc splicing is carried out in the foundation pit in the horizontal direction through a plurality of arc-shaped pipe pieces, then the arc-shaped pipe pieces are spliced layer by layer from bottom to top, a water stop strip 7 is arranged at a joint, and the arc-shaped pipe pieces 1 are connected with each other through arc-shaped bolts to form an open caisson; (5) the arc-shaped duct piece is fixed on the wall of the foundation pit by the anchor rod penetrating through the anchor rod hole.
The working principle is as follows:
horizontal direction evenly decomposes into a plurality of segmental arcs around the open caisson is circular to the open caisson wall of a well, vertical direction decomposes into the rectangular block to the open caisson wall of a well, form the prefabricated construction method of dark big open caisson burst, the device appearance rectangle is the arc section of jurisdiction, from top to bottom during the prefabricated arc section of jurisdiction, the arc bolt hole is reserved respectively to both sides, be used for fixed adjacent arc section of jurisdiction 1, adopt arc bolted connection in the middle of the arc section of jurisdiction 1, the centre sets up stagnant water 7 stagnant water, the anchor rod hole is reserved in the setting of arc section of jurisdiction simultaneously, adopt stock 5 to fix the arc section of jurisdiction on the foundation ditch, each arc section of jurisdiction assembles into an open.
Prefabricated arc section of jurisdiction is concrete structure, and prefabricated section of jurisdiction size can be confirmed according to open caisson construction drawing, and the arc bolt hole is reserved from top to bottom to the side for place the arc bolt, it is fixed with bolted connection between the section of jurisdiction, set up sealing rod 7 between the section of jurisdiction and be used for the stagnant water, the section of jurisdiction openly sets up the stock hole, adopts the stock to fix the section of jurisdiction at foundation ditch hole wall.
Claims (1)
1. The construction method for prefabricating the deep and large open caisson by segments is characterized by comprising the following steps of: (1) uniformly decomposing the wall of the open caisson into a plurality of arc sections around the round shape of the open caisson in the horizontal direction, decomposing the wall of the open caisson into a rectangular block design in the vertical direction, and pouring concrete to form an arc-shaped duct piece; (2) arc bolt holes are reserved at the upper end, the lower end, the left side wall and the right side wall of each arc pipe piece respectively, and the bolt holes on two adjacent arc pipe pieces can be communicated; (3) an anchor rod hole is formed in the middle of the arc-shaped duct piece; (4) arc splicing is carried out in the foundation pit in the horizontal direction through a plurality of arc-shaped pipe pieces, then the arc-shaped pipe pieces are spliced layer by layer from bottom to top, water stop strips are arranged at seams, and the arc-shaped pipe pieces are connected with each other through arc-shaped bolts to form an open caisson; (5) the arc-shaped duct piece is fixed on the wall of the foundation pit by the anchor rod penetrating through the anchor rod hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010309113.5A CN111424697A (en) | 2020-04-19 | 2020-04-19 | Construction method for prefabricating deep and large open caisson by slicing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010309113.5A CN111424697A (en) | 2020-04-19 | 2020-04-19 | Construction method for prefabricating deep and large open caisson by slicing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111424697A true CN111424697A (en) | 2020-07-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010309113.5A Withdrawn CN111424697A (en) | 2020-04-19 | 2020-04-19 | Construction method for prefabricating deep and large open caisson by slicing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111424697A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213094A1 (en) * | 2020-04-19 | 2021-10-28 | 中铁上海工程局集团有限公司 | Fragmented prefabricated structure of deep and large open caisson |
| CN114232665A (en) * | 2021-11-29 | 2022-03-25 | 中国一冶集团有限公司 | Prefabricated assembled open caisson structure and construction method thereof |
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| CN204552747U (en) * | 2015-04-21 | 2015-08-12 | 西安科技大学 | A kind of coal mine shaft lining shaft wall structure |
| CN204551486U (en) * | 2015-03-25 | 2015-08-12 | 中国建筑西南勘察设计研究院有限公司 | Anchor rod type advanced tubule and injection steel bar concrete cylindrical thin wall foundation pit supporting construction |
| CN106014420A (en) * | 2016-05-17 | 2016-10-12 | 上海市城市建设设计研究总院 | Assembled shaft duct piece structure |
| CN107893665A (en) * | 2017-11-06 | 2018-04-10 | 山东建筑大学 | A kind of prefabricated assembled composite supporting construction mounting process based on shaped steel |
| KR20180084411A (en) * | 2017-01-17 | 2018-07-25 | 이신원 | Construction method of lower pier casion footing using PCC structure |
| CN108360543A (en) * | 2018-05-03 | 2018-08-03 | 中铁上海工程局集团有限公司 | A kind of big pre-cast sink well structure of depth and its installation method |
| CN109519174A (en) * | 2019-01-09 | 2019-03-26 | 东北大学 | A kind of shaft wall supporting construction |
| CN109898535A (en) * | 2019-01-10 | 2019-06-18 | 刘建华 | Prefabricated assembled upper pipe working well prestressing force open caisson and assembling method |
| CN110185053A (en) * | 2019-04-22 | 2019-08-30 | 温州大学 | A kind of construction method of assembled circular open caisson |
| CN212452715U (en) * | 2020-04-19 | 2021-02-02 | 中铁上海工程局集团有限公司 | Burst prefabricated construction of dark heavy open caisson |
-
2020
- 2020-04-19 CN CN202010309113.5A patent/CN111424697A/en not_active Withdrawn
Patent Citations (10)
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|---|---|---|---|---|
| CN204551486U (en) * | 2015-03-25 | 2015-08-12 | 中国建筑西南勘察设计研究院有限公司 | Anchor rod type advanced tubule and injection steel bar concrete cylindrical thin wall foundation pit supporting construction |
| CN204552747U (en) * | 2015-04-21 | 2015-08-12 | 西安科技大学 | A kind of coal mine shaft lining shaft wall structure |
| CN106014420A (en) * | 2016-05-17 | 2016-10-12 | 上海市城市建设设计研究总院 | Assembled shaft duct piece structure |
| KR20180084411A (en) * | 2017-01-17 | 2018-07-25 | 이신원 | Construction method of lower pier casion footing using PCC structure |
| CN107893665A (en) * | 2017-11-06 | 2018-04-10 | 山东建筑大学 | A kind of prefabricated assembled composite supporting construction mounting process based on shaped steel |
| CN108360543A (en) * | 2018-05-03 | 2018-08-03 | 中铁上海工程局集团有限公司 | A kind of big pre-cast sink well structure of depth and its installation method |
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| CN110185053A (en) * | 2019-04-22 | 2019-08-30 | 温州大学 | A kind of construction method of assembled circular open caisson |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213094A1 (en) * | 2020-04-19 | 2021-10-28 | 中铁上海工程局集团有限公司 | Fragmented prefabricated structure of deep and large open caisson |
| CN114232665A (en) * | 2021-11-29 | 2022-03-25 | 中国一冶集团有限公司 | Prefabricated assembled open caisson structure and construction method thereof |
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Application publication date: 20200717 |