CN105937248A - Body structure section construction and temporary plugging wall connecting portion treatment method - Google Patents
Body structure section construction and temporary plugging wall connecting portion treatment method Download PDFInfo
- Publication number
- CN105937248A CN105937248A CN201610520388.7A CN201610520388A CN105937248A CN 105937248 A CN105937248 A CN 105937248A CN 201610520388 A CN201610520388 A CN 201610520388A CN 105937248 A CN105937248 A CN 105937248A
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- steel
- agent structure
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- reinforced concrete
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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
- E02D29/16—Arrangement or construction of joints in foundation structures
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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
- E02D29/02—Retaining or protecting walls
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention provides a body structure section construction and temporary plugging wall connecting portion treatment method. The method is suitable for foundation pit open cutting section construction body structure construction. According to the method, the security coefficient is high, the construction progress can be accelerated, and convenience is brought to foundation pit follow-up structure construction. H-shaped steel is utilized for transmitting soil pressure borne by the plugging wall to a bottom plate, a side wall and a top plate. The L-shaped temporary plugging wall is constructed above the top plate of a body structure, and therefore on the basis of backfilling the top plate of the body structure, the body structure on the connecting portion of the plugging wall can be constructed continuously.
Description
Technical field
The present invention relates to an agent structure section construction and temporary plugging wall joint processing method.
Background technology
At present in city, open-cut foundation ditch place working space is little, and interval, single turn road length can not once have been constructed, and solid needs arranges temporary plugging wall in ring road, carries out repeatedly traffic and leads and change, thus realizes ring road excavation section by section, section construction, segmentation backfill.When being close to the structure construction of block wall, owing to the block wall opposite side soil body not yet excavates, the soil body has the biggest lateral pressure to block wall, and there is a certain distance in structure distance block wall, need backfilling of earthwork could realize traffic in structure roof to lead improvement and carry out block wall opposite side earth excavation and structure construction, if processing the relation of bad structure and block wall, then one, the stability of block wall stress cannot be ensured, it is ensured that not construction safety；Two, at temporary plugging wall, steel encloses purlin and bracing members cannot be removed in time, leasing period lengthens, increases construction costs；Three, backfill soil can be from block wall and the landing of interstructural space, it is impossible to carries out backfilling of earthwork, and then finally cannot be carried out the structure construction of block wall opposite side.Gu the treatment measures the most rationally processed between segmentation ring road structure and temporary plugging wall, ensure the normal backfilling of earthwork of top board, block wall structure on two sides connects smoothly, is the technical barrier needing in the structure built by opencut method construction of current city to overcome, the most not yet has good treatment measures.
Summary of the invention
It is an object of the invention to for existing deficiency, there is provided a kind of agent structure section construction and temporary plugging wall joint processing method to solve ring road cannot once construct, must segmentation construct, the problem of segmentation backfill, ensure both to have can ensure that the safety of temporary plugging wall, can complete again the backfill construction of side structure top board and block wall opposite side earth excavation, the construction of structure drop-over.
The method of the invention is:
(1) the agent structure base plate of a phase agent structure of first constructing: above agent structure baseplate reinforcing bar, the pre-buried longitudinal I22 I-steel of location interval 2m of base plate hoop galvanized steel plain sheet waterstop centered beneath, longitudinal I22 I-steel keeps flat, its rear and front end "eight" shape reinforcing bar is fixed firmly, longitudinal I22 I-steel anchors into 0.5m in agent structure base plate, stretch out the outer 0.5m of structure base slab, it is attached with transversal I 22 I-steel 6 between end and the temporary plugging wall 3 of longitudinal I22 I-steel, four sides weld all around is carried out between transversal I 22 I-steel and longitudinal I-steel, transversal I 22 I-steel is closely connected with temporary plugging wall, ensure middle seamless, soil body lateral pressure suffered by temporary plugging wall is delivered to agent structure base plate up by the gun iron link of I22 I-steel；
During the agent structure top board of a phase agent structure of constructing again, being laterally placed on by longitudinal direction I22 I-steel between hoop galvanized steel plain sheet waterstop and agent structure top board, remaining step is equal to agent structure construction of bottom plates;Owing to I22 I-steel exposes for a long time to closing, moist underground environment, get rusty easily corrosion, in order to avoid the oxidation reaction in air is delivered in structure by I22 I-steel, cause the deep charring of structure and the corrosion of structure reinforcing bars, needed I22 work steel external coating anticorrosion, antirust paint before I22 I-steel is pre-buried, during concrete placings, the necessary vibration compacting of the concrete at I22 I-steel position, bubble must not be accompanied.
(2) construction L-type reinforced concrete wall: during the construction of the agent structure top board of the phase agent structure first carried out, the horizontal main muscle of L-type reinforced concrete wall is reserved during agent structure top board construction, reserved horizontal main muscle anchors into 35d in agent structure top board, reserved steel bar staggers lap of splice 35d, after agent structure top board has poured, bar planting operation is carried out with scaffold building L-type reinforced concrete wall bar planting job platform, the vertical equity muscle of L-type reinforced concrete wall implants 15d in the building enclosure of both sides, and vertical equity muscle uses welding point mode to stagger 35d.After bar planting has worked, on scaffold, directly lay bed die and the inner side template of L-type reinforced concrete wall, carry out the reinforcing bar binding operation of L-type reinforced concrete wall, steel corrosion quantity its outboard template of qualified rear supporting also carries out reinforcement measure, acceptance(check) pours with agent structure with the concrete of label, and the age of the concrete of L-type reinforced concrete wall and intensity carry out form removal after reaching.
The agent structure top board of the inner side template of L-type reinforced concrete wall and scaffold and correspondence, the I-steel of base plate are removed and recycle when second phase structure construction.L-type reinforced concrete wall and I-steel constitute the structure of entirety and the treatment measures system of temporary plugging wall, and this measure just can carry out soil body backfill above agent structure top board after having constructed;Pit earthwork excavation and the second phase structure construction of block wall opposite side can not be affected.
The medicine have the advantages that this kind of construction method simple and effective can solve the structural segmented construction of ring road, reasonable arrangement tissue produces, the difficult problem owing to taking up an area not enough ring road structure of cannot once having constructed can be solved, can construct in time soil body backfill above segmental structure, reduction of erection time, solve cost.Material market used by this kind for the treatment of measures is generally to exist, and draws materials simple, and cost relative moderate does not produce too much waste, free from environmental pollution, environmental protection.
Accompanying drawing explanation
Fig. 1 is that at block wall, floor map reinforced by I-steel；
Fig. 2 is that at block wall, generalized section reinforced by I-steel；
In figure: the length of transversal I 22 I-steel is equal with foundation ditch width;
Fig. 3 is structure L-type xoncrete structure floor map at block wall；
Fig. 4 is structure L-type xoncrete structure generalized section at block wall；
In figure, a 1. phase structure；2, second phase structure；3, temporary plugging wall；4, hoop galvanized steel plain sheet waterstop；5, longitudinal I22 I-steel；6, transversal I 22 I-steel；7, agent structure base plate；8, agent structure side wall；9, agent structure top board；10, building enclosure；11, horizontal main muscle；12, vertical equity muscle；13, L-type reinforced concrete wall.
Detailed description of the invention
The method of the invention is:
(1) the agent structure base plate of a phase agent structure of first constructing: above agent structure baseplate reinforcing bar, the pre-buried longitudinal I22 I-steel of location interval 2m of base plate hoop galvanized steel plain sheet waterstop centered beneath, longitudinal I22 I-steel keeps flat, its rear and front end "eight" shape reinforcing bar is fixed firmly, longitudinal I22 I-steel anchors into 0.5m in agent structure base plate, stretch out the outer 0.5m of structure base slab, it is attached with transversal I 22 I-steel 6 between end and the temporary plugging wall 3 of longitudinal I22 I-steel, four sides weld all around is carried out between transversal I 22 I-steel and longitudinal I-steel, transversal I 22 I-steel is closely connected with temporary plugging wall, ensure middle seamless, soil body lateral pressure suffered by temporary plugging wall is delivered to agent structure base plate up by the gun iron link of I22 I-steel；
During the agent structure top board of a phase agent structure of constructing again, being laterally placed on by longitudinal direction I22 I-steel between hoop galvanized steel plain sheet waterstop and agent structure top board, remaining step is equal to agent structure construction of bottom plates;Owing to I22 I-steel exposes for a long time to closing, moist underground environment, get rusty easily corrosion, in order to avoid the oxidation reaction in air is delivered in structure by I22 I-steel, cause the deep charring of structure and the corrosion of structure reinforcing bars, needed I22 work steel external coating anticorrosion, antirust paint before I22 I-steel is pre-buried, during concrete placings, the necessary vibration compacting of the concrete at I22 I-steel position, bubble must not be accompanied.
(2) construction L-type reinforced concrete wall: during the construction of the agent structure top board of the phase agent structure first carried out, the horizontal main muscle of L-type reinforced concrete wall is reserved during agent structure top board construction, reserved horizontal main muscle anchors into 35d in agent structure top board, reserved steel bar staggers lap of splice 35d, after agent structure top board has poured, bar planting operation is carried out with scaffold building L-type reinforced concrete wall bar planting job platform, the vertical equity muscle of L-type reinforced concrete wall implants 15d in the building enclosure of both sides, and vertical equity muscle uses welding point mode to stagger 35d.After bar planting has worked, on scaffold, directly lay bed die and the inner side template of L-type reinforced concrete wall, carry out the reinforcing bar binding operation of L-type reinforced concrete wall, steel corrosion quantity its outboard template of qualified rear supporting also carries out reinforcement measure, acceptance(check) pours with agent structure with the concrete of label, and the age of the concrete of L-type reinforced concrete wall and intensity carry out form removal after reaching.
The agent structure top board of the inner side template of L-type reinforced concrete wall and scaffold and correspondence, the I-steel of base plate are removed and recycle when second phase structure construction.L-type reinforced concrete wall and I-steel constitute the structure of entirety and the treatment measures system of temporary plugging wall, and this measure just can carry out soil body backfill above agent structure top board after having constructed;Pit earthwork excavation and the second phase structure construction of block wall opposite side can not be affected.
Claims (1)
1. agent structure section construction and a temporary plugging wall joint processing method, is characterized in that:
(1) the agent structure base plate of a phase agent structure of first constructing: above agent structure baseplate reinforcing bar, the pre-buried longitudinal I22 I-steel of location interval 2m of base plate hoop galvanized steel plain sheet waterstop centered beneath, longitudinal I22 I-steel keeps flat, its rear and front end "eight" shape reinforcing bar is fixed firmly, longitudinal I22 I-steel anchors into 0.5m in agent structure base plate, stretch out the outer 0.5m of structure base slab, it is attached with transversal I 22 I-steel between end and the temporary plugging wall of longitudinal I22 I-steel, four sides weld all around is carried out between transversal I 22 I-steel and longitudinal I-steel, transversal I 22 I-steel is closely connected with temporary plugging wall, ensure middle seamless, soil body lateral pressure suffered by temporary plugging wall is delivered to agent structure base plate up by the gun iron link of I22 I-steel；
The agent structure top board of a phase agent structure of constructing again, is laterally placed on longitudinal direction I22 I-steel between hoop galvanized steel plain sheet waterstop and agent structure top board, and remaining step is equal to step (1) agent structure construction of bottom plates;Owing to I22 I-steel exposes for a long time to closing, moist underground environment, get rusty easily corrosion, in order to avoid the oxidation reaction in air is delivered in structure by I22 I-steel, cause the deep charring of structure and the corrosion of structure reinforcing bars, will be by I22 work steel external coating anticorrosion, antirust paint before I22 I-steel is pre-buried, during concrete placings, the necessary vibration compacting of the concrete at I22 I-steel position, bubble must not be accompanied;
(2) construction L-type reinforced concrete wall: during the construction of the agent structure top board of the phase agent structure first carried out, the horizontal main muscle of L-type reinforced concrete wall is reserved during agent structure top board construction, reserved horizontal main muscle anchors into 35d in agent structure top board, reserved steel bar staggers lap of splice 35d, after agent structure top board has poured, bar planting operation is carried out with scaffold building L-type reinforced concrete wall bar planting job platform, the vertical equity muscle of L-type reinforced concrete wall implants 15d in the building enclosure of both sides, and vertical equity muscle uses welding point mode to stagger 35d;After bar planting has worked, on scaffold, directly lay bed die and the inner side template of L-type reinforced concrete wall, carry out the reinforcing bar binding operation of L-type reinforced concrete wall, steel corrosion quantity its outboard template of qualified rear supporting also carries out reinforcement measure, acceptance(check) pours with agent structure with the concrete of label, and the age of the concrete of L-type reinforced concrete wall and intensity carry out form removal after reaching;L-type reinforced concrete wall and I-steel constitute the structure of entirety and the treatment measures system of temporary plugging wall, and this construction method carries out soil body backfill above agent structure top board after completing;Do not affect pit earthwork excavation and the second phase structure construction of block wall opposite side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610520388.7A CN105937248B (en) | 2016-07-05 | 2016-07-05 | Agent structure section construction and temporary plugging wall joint processing method |
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| CN201610520388.7A CN105937248B (en) | 2016-07-05 | 2016-07-05 | Agent structure section construction and temporary plugging wall joint processing method |
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| CN105937248A true CN105937248A (en) | 2016-09-14 |
| CN105937248B CN105937248B (en) | 2017-11-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447792A (en) * | 2017-08-07 | 2017-12-08 | 深圳市建筑设计研究总院有限公司 | The waterproof connecting structure and its construction method of underground reserved passageway mouth |
| CN112560321A (en) * | 2020-12-29 | 2021-03-26 | 重庆交通大学 | Calculation method for ring-divided segmented pouring length of concrete wrapped outside arch ring of stiffened framework concrete arch bridge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202689040U (en) * | 2012-05-25 | 2013-01-23 | 中铁十八局集团有限公司 | Steel end seal wall structure for large immersed tunnel |
| KR101330024B1 (en) * | 2013-01-24 | 2013-11-15 | (주)경동엔지니어링 | Flexible connection apparatus for preventing water for facilities |
-
2016
- 2016-07-05 CN CN201610520388.7A patent/CN105937248B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202689040U (en) * | 2012-05-25 | 2013-01-23 | 中铁十八局集团有限公司 | Steel end seal wall structure for large immersed tunnel |
| KR101330024B1 (en) * | 2013-01-24 | 2013-11-15 | (주)경동엔지니어링 | Flexible connection apparatus for preventing water for facilities |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447792A (en) * | 2017-08-07 | 2017-12-08 | 深圳市建筑设计研究总院有限公司 | The waterproof connecting structure and its construction method of underground reserved passageway mouth |
| CN112560321A (en) * | 2020-12-29 | 2021-03-26 | 重庆交通大学 | Calculation method for ring-divided segmented pouring length of concrete wrapped outside arch ring of stiffened framework concrete arch bridge |
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| CN105937248B (en) | 2017-11-28 |
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Inventor after: Dong Xiaolong Inventor after: Ma Chengming Inventor after: Luo Cangning Inventor after: Li Junyue Inventor after: Kong Xiangyuan Inventor after: Yao Yuan Inventor after: Duan Jiewen Inventor after: Huang Yu Inventor after: Zhang Ronghua Inventor after: Li Xianlong Inventor after: Gong Yunhui Inventor after: Li Zhijun Inventor after: Hu Chaogui Inventor after: Peng Zaiyong Inventor after: Guo Xiaolong Inventor after: Sun Chao Inventor after: Gao Kun Inventor after: Dong Jun Inventor after: Liu Min Inventor after: Wang Yu Inventor before: Dong Xiaolong Inventor before: Zhu Xiong Inventor before: Gao Kun Inventor before: Cui Hailong Inventor before: Pi Zhongqiang Inventor before: Cai Xiao Inventor before: Peng Yanfeng Inventor before: Ye Liang Inventor before: Li Chengjiao Inventor before: Wu Kongyong Inventor before: Chen Qiang Inventor before: Li Zhijun Inventor before: Luo Cangning Inventor before: Peng Zaiyong Inventor before: Yao Yiwen Inventor before: Yang Guosheng Inventor before: Liu Wei Inventor before: Xu Duo Inventor before: Liu Gang Inventor before: Zhao Wenlong |
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Granted publication date: 20171128 Termination date: 20210705 |