CN212452715U - Burst prefabricated construction of dark heavy open caisson - Google Patents
Burst prefabricated construction of dark heavy open caisson Download PDFInfo
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- CN212452715U CN212452715U CN202020582764.7U CN202020582764U CN212452715U CN 212452715 U CN212452715 U CN 212452715U CN 202020582764 U CN202020582764 U CN 202020582764U CN 212452715 U CN212452715 U CN 212452715U
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- arc
- shaped
- anchor rod
- construction
- open caisson
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
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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
- 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
- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/18—Foundations formed by making use of caissons
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Revetment (AREA)
Abstract
本发明属于市政给排水工程施工，涉及一种深大沉井分片预制结构，包括若干个外形呈矩形状均匀的弧形管片，若干个弧形管片相互衔接后，在水平表面上能够围成圆环状，在竖直方向上形成沉井；每个弧形管片上下端和左右侧壁分别预留弧形螺栓孔，相邻两个螺栓孔能够贯通连接；相邻两个弧形管片通过一根弧形螺栓连接；弧形管片正表面上设置有锚杆孔，锚杆孔上设置有锚杆，通过锚杆将弧形管片固定在基坑坑壁；所述弧形管片为混凝土结构。采用本装置分节现浇然后下沉，将原有沉井作业施工工艺由现浇转为装配式预制结构施工，特别适用于施工净空受限，地下水用水量大且地质松软，圆砾区的沉井制作，同时降低了施工成本，提高了施工质量。
The invention belongs to the construction of municipal water supply and drainage engineering, and relates to a deep and large caisson segmented prefabricated structure, comprising a plurality of arc segments with a uniform rectangular shape. The caisson is formed in a circular ring shape in the vertical direction; the upper and lower ends and the left and right side walls of each arc-shaped segment are respectively reserved with arc-shaped bolt holes, and two adjacent bolt holes can be connected through; The segments are connected by an arc-shaped bolt; the front surface of the arc-shaped segment is provided with an anchor rod hole, and the anchor rod hole is provided with an anchor rod, and the arc-shaped segment is fixed on the wall of the foundation pit through the anchor rod; The segment is of concrete structure. The device is cast in place and then sinks in sections, and the original caisson construction technology is converted from cast-in-place to prefabricated structure construction. It is especially suitable for limited construction clearance, large groundwater water consumption and soft geology. caisson production, while reducing the construction cost and improving the construction quality.
Description
Technical Field
The invention belongs to municipal water supply and drainage engineering construction, and relates to a segmented prefabricated structure of a deep and large open caisson.
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 segmented prefabricated structure of a deep and large open caisson, which can realize the rapid forming of the open caisson.
The specific technical scheme is as follows: a fragmentation prefabrication structure of a deep and large open caisson comprises a plurality of arc-shaped pipe pieces with rectangular and uniform shapes, wherein after the arc-shaped pipe pieces 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 pipe sheet respectively, and two adjacent bolt holes can be in through connection; two adjacent arc-shaped pipe pieces are connected through an arc-shaped bolt; an anchor rod hole is formed in the front surface of the arc-shaped duct piece, an anchor rod is arranged on the anchor rod hole, and the arc-shaped duct piece is fixed on the pit wall of the foundation pit through the anchor rod; the arc-shaped duct piece is of a concrete structure.
Further, a water stop strip is arranged between every two adjacent arc-shaped pipe pieces and used for stopping water.
Has the advantages that: the device is adopted for cast-in-place and then sinking in sections, the original open caisson operation construction process is converted from cast-in-place to fabricated prefabricated structure construction, and the device is particularly suitable for open caisson manufacturing 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 the open caisson formed by the arc-shaped segments of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a plan view of the arc-shaped duct piece of the present invention;
fig. 4 is an elevation view of the arc-shaped duct piece 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 a dark big open caisson burst prefabricated construction, 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, adopt arc bolted connection in the middle of the arc section of jurisdiction, the centre sets up the sealing up of waterstop, the anchor rod hole is reserved in the setting of arc section of jurisdiction simultaneously, adopt the stock to fix the arc section of jurisdiction on the foundation ditch, each arc section of jurisdiction assembles into.
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 the sealing rod between the section of jurisdiction and be used for the stagnant water, the section of jurisdiction openly sets up the anchor rod hole, adopts the stock to fix the section of jurisdiction at foundation ditch hole wall.
Claims (2)
1. A segment prefabricated structure of a deep and large open caisson is characterized by comprising a plurality of arc-shaped pipe pieces with rectangular and uniform shapes, wherein after the arc-shaped pipe pieces 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 pipe sheet respectively, and two adjacent bolt holes can be in through connection;
two adjacent arc-shaped pipe pieces are connected through an arc-shaped bolt;
an anchor rod hole is formed in the front surface of the arc-shaped duct piece, an anchor rod is arranged on the anchor rod hole, and the arc-shaped duct piece is fixed on the pit wall of the foundation pit through the anchor rod;
the arc-shaped duct piece is of a concrete structure.
2. The prefabricated structure of deep and large open caisson segment as claimed in claim 1, wherein a water stopping strip is arranged between two adjacent arc-shaped segments for stopping water.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020582764.7U CN212452715U (en) | 2020-04-19 | 2020-04-19 | Burst prefabricated construction of dark heavy open caisson |
| PCT/CN2021/081774 WO2021213094A1 (en) | 2020-04-19 | 2021-03-19 | Fragmented prefabricated structure of deep and large open caisson |
| DE202021101919.0U DE202021101919U1 (en) | 2020-04-19 | 2021-04-09 | Fragmented prefabricated structure of a deep large caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020582764.7U CN212452715U (en) | 2020-04-19 | 2020-04-19 | Burst prefabricated construction of dark heavy open caisson |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212452715U true CN212452715U (en) | 2021-02-02 |
Family
ID=74471615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020582764.7U Active CN212452715U (en) | 2020-04-19 | 2020-04-19 | Burst prefabricated construction of dark heavy open caisson |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN212452715U (en) |
| DE (1) | DE202021101919U1 (en) |
| WO (1) | WO2021213094A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424697A (en) * | 2020-04-19 | 2020-07-17 | 中铁上海工程局集团有限公司 | Construction method for prefabricating deep and large open caisson by slicing |
| 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 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN116163310A (en) * | 2022-12-21 | 2023-05-26 | 中国建筑第八工程局有限公司 | Construction method of precipitation-free finished foundation cushion layer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3801678B2 (en) * | 1996-02-22 | 2006-07-26 | 石川島建材工業株式会社 | Structure basics |
| CN105756685B (en) * | 2016-05-03 | 2018-05-04 | 西南交通大学 | A kind of reinforced combined retaining structure of pipe-plate lining |
| CN108203928A (en) * | 2018-01-16 | 2018-06-26 | 宁波工程学院 | Sinking type bridge substructure precast concrete section of jurisdiction prestressed assembly structure and construction method |
| CN209040137U (en) * | 2018-07-09 | 2019-06-28 | 中国水利水电第七工程局有限公司 | Well piece and prefabricated assembled open caisson |
| CN208718676U (en) * | 2018-08-30 | 2019-04-09 | 沈阳建筑大学 | Joint Support Structure for Concrete Segment Anchor Offset |
| 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 |
| CN111424697A (en) * | 2020-04-19 | 2020-07-17 | 中铁上海工程局集团有限公司 | Construction method for prefabricating deep and large open caisson by slicing |
-
2020
- 2020-04-19 CN CN202020582764.7U patent/CN212452715U/en active Active
-
2021
- 2021-03-19 WO PCT/CN2021/081774 patent/WO2021213094A1/en not_active Ceased
- 2021-04-09 DE DE202021101919.0U patent/DE202021101919U1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424697A (en) * | 2020-04-19 | 2020-07-17 | 中铁上海工程局集团有限公司 | Construction method for prefabricating deep and large open caisson by slicing |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021213094A1 (en) | 2021-10-28 |
| DE202021101919U1 (en) | 2021-04-15 |
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