CN103603508A - Blocking, pouring and reinforcing construction method for building with pile foundations in underground bomb shelter - Google Patents

Blocking, pouring and reinforcing construction method for building with pile foundations in underground bomb shelter Download PDF

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Publication number
CN103603508A
CN103603508A CN201310579875.7A CN201310579875A CN103603508A CN 103603508 A CN103603508 A CN 103603508A CN 201310579875 A CN201310579875 A CN 201310579875A CN 103603508 A CN103603508 A CN 103603508A
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China
Prior art keywords
shelter
bomb shelter
construction
bomb
carry
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Application number
CN201310579875.7A
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Chinese (zh)
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CN103603508B (en
Inventor
马文浩
石立国
刘强
罗艺
郑雄
陈博
朱俊成
张继川
李太云
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China Construction Second Engineering Bureau Co Ltd
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China Construction Second Engineering Bureau Co Ltd
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Priority to CN201310579875.7A priority Critical patent/CN103603508B/en
Publication of CN103603508A publication Critical patent/CN103603508A/en
Application granted granted Critical
Publication of CN103603508B publication Critical patent/CN103603508B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention relates to a blocking, pouring and reinforcing construction method for a building with pile foundations in an underground bomb shelter. The method includes firstly, detecting the underground bomb shelter, drawing a bomb-shelter course map, performing hole detection on overlapped or adjacent pile foundations on the bomb-shelter course map, and determining pile positions affected by the bomb shelter; secondly, erecting supporting frames in the bomb shelter to prevent collapse, building retaining walls around the pile foundations and the bomb shelter in the bomb shelter to perform segmented blocking, and pouring concrete onto the pile foundations, wherein the strength of the concrete is increased by one grade as compared with the design strength; finally, pouring concrete to and tamping the bomb shelter after pouring of the pile foundations is finished and the design strength is achieved. By the method, the problem of construction difficulty in processing the underground bomb shelter is solved, construction efficiency is improved, and construction progress is accelerated.

Description

The shutoff reperfusion reinforcement construction method of a kind of pile foundation in underground shelter
Technical field
The present invention relates to a kind of engineering construction method, relate in particular to the reinforced construction method of a kind of pile foundation in underground shelter.
Background technology
Bomb shelter is during the war of resistance, in order to hide the bombing of enemy's artillery fire, is used for the safety of the protection person, property and the cave of excavating.At the beginning of the bomb shelter of Chongqing City starts from war of resistance outburst, major part is brick wall, the rectangular slab of stone, also has concrete structure.But along with urban renewal and along with the loss of some data, many bomb shelters go out of use and are buried in the end, ground.Because this type bomb shelter physical features of living in is complicated, shape is long and narrow, when exploring early stage, is difficult to find, in foundation construction process, is just found, and processes construction experience few for underground chambers such as underground shelters, and difficulty of construction is large.
Summary of the invention
The object of the invention is to be to solve a difficult problem for the underground shelter that affects foundation construction.
For addressing the above problem, scheme of the present invention is: the shutoff reperfusion reinforcement construction method of a kind of pile foundation in underground shelter is provided, mainly comprises following construction sequence:
A) underground shelter is surveyed, drawn bomb shelter and move towards figure;
B) moved towards on figure to overlap in bomb shelter or near pile foundation is carried out inspecting hole, confirm the stake position of bomb shelter impact;
C) in inside, bomb shelter, carrying out support body sets up to support and prevents from caving in;
D) in inside, bomb shelter, around pile foundation, bomb shelter, build barricade by laying bricks or stones and carry out segmentation shutoff;
E) pile foundation is carried out to filling concrete construction, wherein concrete strength improves a grade than design strength;
F) until pile foundation concreting, complete and again underground shelter is carried out to filling concrete after reaching design strength and tamp.
Further, construction sequence comprises, enter the exploration that carry out inside, bomb shelter, and to carrying out inspecting hole construction in the channel range of bomb shelter, inspecting hole is from the stake position being affected by bomb shelter passage, visit point and arrange that the drawing of drawing according to preliminary survey carries out inspecting hole construction along bomb shelter channel direction at interval of 1m, after inspecting hole completes by the accurate orienting response in bomb shelter to after on ground, at channel position, carry out after new perforate construction, again to top, hole in bomb shelter, at the bottom of hole, absolute altitude and hole apex distance carry out actual measurement from the soil thickness of present situation terrace, determine again the embedding rock degree of depth and the rigidity angle of all skirt piles, and continue to reconnoitre trend and the expanded range in bomb shelter, earthen fill zone, two ends, cavern,
First to existing the stake in bomb shelter to carry out excavation construction, dregs after top, bomb shelter soil excavation completes in timely cleaning bomb shelter, this position position line is introduced to bottom, bomb shelter simultaneously, in the position line of stake position, bottom, bomb shelter, preparing the basic embedding petrosa of construction divides, according to code requirement, when basis enters embedding rock stratum, carry out a core sampling, after realistic requirement to be tested, then carry out basic embedding petrosa and divide and expand bottom application work;
After pile hole forming, first stake is constructed, in Nei Duizhuan hole site, bomb shelter, build brick loose tool by laying bricks or stones and carry out formwork construction, after laying, carry out concrete construction; During concreting, answer placement layer by layer, build 1m thick at every turn, after concrete initial set, build again, during concreting, answer vibration compacting;
In people's air defense room, between stake and stake, build shale brick by laying bricks or stones, shale brick is built by laying bricks or stones to top, and the space concreting between shale brick and soil layer is filled and vibration compacting, and the while is also as the strong point of this unsettled soil layer; To the cavern of inside, bomb shelter and passage, adopting concrete to pour into after pile foundation construction completes tamps.
Of the present invention is to be applicable to the underground underground shelter processing construction method that has bomb shelter and have the highrise building of good ground build-in condition, has solved underground shelter and has processed difficulty of construction, has improved efficiency of construction, has accelerated construction speed.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is that pile foundation and bomb shelter are related to schematic diagram;
Fig. 2 is that in room, bomb shelter, brick fetal membrane is built schematic diagram by laying bricks or stones;
Fig. 3 is room, bomb shelter perfusion schematic diagram;
In figure: 1, stake, 2, bomb shelter, 3, perforate, 4, concreting, 5, brick masonry, 6, stake hole.
The specific embodiment
Below in conjunction with concrete case study on implementation, the present invention is described as follows: as shown in Figure 1, enter the exploration that carry out inside, bomb shelter, bomb shelter inner room site survey is comparatively accurate, but its bomb shelter channel position exploration accuracy is not high.For guaranteeing bomb shelter channel position, newly open cavity and be positioned at top, bomb shelter, by take the drawing that preliminary survey draws, it is foundation, to carrying out inspecting hole construction in the channel range of bomb shelter, inspecting hole, from the stake position being affected by bomb shelter passage, is visited point and is arranged that the drawing of drawing according to preliminary survey carries out inspecting hole construction along bomb shelter channel direction at interval of 1m.After inspecting hole completes by the accurate orienting response in bomb shelter to after on ground, at channel position, carry out after new perforate construction, again absolute altitude at the bottom of bomb shelter Nei Dongding, hole and hole apex distance are carried out to actual measurement from the soil thickness of present situation terrace, determine again the embedding rock degree of depth of all skirt piles and rigidity angle etc., and continue to find out trend and the expanded range in bomb shelter, earthen fill zone, two ends, cavern.
According to having bomb shelter under first clear and definite which stake of exploration, first this part stake is carried out to excavation construction.When constructor digs pile driving construction, should fasten seat belts, construction equipment is also applied rope and is lifted, so as not to when construction bottom rock-soil cave in and cause security incident.Dregs after top, bomb shelter soil excavation completes in timely cleaning bomb shelter, measurement group is simultaneously introduced bottom, bomb shelter by this position position line, prepares the basic embedding petrosa of construction and divide in the position line of stake position, bottom, bomb shelter.According to code requirement, when entering embedding rock stratum, basis carries out a core sampling, and after realistic requirement to be tested, then carry out basic embedding petrosa and divide and expand bottom application work.
After pile hole forming, first stake is constructed as shown in Figure 2.Because stake causes hand excavated pile not to be shaped through position, bomb shelter without soil layer, so build brick loose tool by laying bricks or stones in Nei Duizhuan hole site, bomb shelter, carry out formwork construction, after laying, carry out concrete construction.For convenience of constructor, pass in and out bomb shelter and construction operation, on this top, room, bomb shelter, offer a hole again, construction method, by manual digging pile construction, guarantees that this hole location does not affect other stakes and grade beam construction.
Underground garage position is positioned at passage top, bomb shelter, if bomb shelter passage is not directly communicated with garage pile foundation in the ideal situation, and adjacent segment is apart from being greater than 500mm, inside, bomb shelter is not processed; If underground garage pile foundation and bomb shelter passage connect, adopt above-mentioned form of construction work to construct to hole digging pile; If pile foundation and bomb shelter passage adjacent segment run through, distance is not less than 500mm, during for assurance pile foundation excavation, do not dig through and avoid mud stone in bomb shelter to cause the impact of sedimentation on stake after underground water soaks with bomb shelter, swollen hole while preventing from building pile concrete, first carries out filling concrete to people's air defense channel interior subregion.People's air defense passage is poured into, because this passage garage pile foundation is not communicated with people's air defense passage, must be on the ground during perfusion again perforate lead to people's air defense passage.In inside, bomb shelter, be positioned at new perforate both sides 1.5m scope and carry out concreting, strength grade of concrete is identical with the strength grade of concrete of stake.Before concreting, should build in inside, bomb shelter shale brick barricade by laying bricks or stones.Within the scope of concreting, bomb shelter bottom dregs is cleaned out, and answers placement layer by layer during concreting, builds 1m thick at every turn, after concrete initial set, builds again.During concreting, answer vibration compacting.
The standard width of a room in an old-style house and clear height for underground shelter chamber are large, first setting up supporting frame supports and to avoid bomb shelter and collapse, again the assorted soil in room is removed clean, in people's air defense room, between stake and stake, build shale brick by laying bricks or stones, shale brick is built by laying bricks or stones to top, space concreting between shale brick and soil layer is filled and vibration compacting, simultaneously also as the strong point of this unsettled soil layer.
As shown in Figure 3, to the cavern of inside, bomb shelter and passage, adopting concrete to pour into after pile foundation construction completes tamps.
For bomb shelter stake processing, Xu Yu designing unit confers the embedding rock degree of depth that is clearly positioned at bomb shelter stake and how to calculate (generally according to the bottom of room, bomb shelter or passage, starting at), carry out again the excavation of the embedding rock degree of depth of designing requirement, with and stake pore-forming after to the account form at rigidity angle of stake around.

Claims (2)

1. the shutoff reperfusion reinforcement construction method of pile foundation in underground shelter, is characterized in that comprising following construction sequence:
A) underground shelter is surveyed, drawn bomb shelter and move towards figure;
B) moved towards on figure to overlap in bomb shelter or near pile foundation is carried out inspecting hole, confirm the stake position of bomb shelter impact;
C) in inside, bomb shelter, carrying out support body sets up to support and prevents from caving in;
D) in inside, bomb shelter, around pile foundation, bomb shelter, build barricade by laying bricks or stones and carry out segmentation shutoff;
E) pile foundation is carried out to filling concrete construction, wherein concrete strength improves a grade than design strength;
F) until pile foundation concreting, complete and again underground shelter is carried out to filling concrete after reaching design strength and tamp.
2. the shutoff reperfusion reinforcement construction method of a kind of pile foundation according to claim 1 in underground shelter, it is characterized in that: enter the exploration that carry out inside, bomb shelter, and to carrying out inspecting hole construction in the channel range of bomb shelter, inspecting hole is from the stake position being affected by bomb shelter passage, visit point and arrange that the drawing of drawing according to preliminary survey carries out inspecting hole construction along bomb shelter channel direction at interval of 1m, after inspecting hole completes by the accurate orienting response in bomb shelter to after on ground, at channel position, carry out after new perforate construction, again to top, hole in bomb shelter, at the bottom of hole, absolute altitude and hole apex distance carry out actual measurement from the soil thickness of present situation terrace, determine again the embedding rock degree of depth and the rigidity angle of all skirt piles, and continue to reconnoitre trend and the expanded range in people's air defense hole, earthen fill zone, two ends, bomb shelter,
First to existing the stake in bomb shelter to carry out excavation construction, dregs after top, bomb shelter soil excavation completes in timely cleaning bomb shelter, this position position line is introduced to bottom, bomb shelter simultaneously, in the position line of stake position, bottom, bomb shelter, preparing the basic embedding petrosa of construction divides, according to code requirement, when basis enters embedding rock stratum, carry out a core sampling, after realistic requirement to be tested, then carry out basic embedding petrosa and divide and expand bottom application work;
After pile hole forming, first stake is constructed, in Nei Duizhuan hole site, bomb shelter, build brick loose tool by laying bricks or stones and carry out formwork construction, after laying, carry out concrete construction; During concreting, answer placement layer by layer, build 1m thick at every turn, after concrete initial set, build again, during concreting, answer vibration compacting;
In people's air defense room, between stake and stake, build shale brick by laying bricks or stones, shale brick is built by laying bricks or stones to top, and the space concreting between shale brick and soil layer is filled and vibration compacting, and the while is also as the strong point of this unsettled soil layer; To the cavern of inside, bomb shelter and passage, adopting concrete to pour into after pile foundation construction completes tamps.
CN201310579875.7A 2013-11-19 2013-11-19 A kind of pile foundation closure reperfusion reinforcement construction method in buried shelter Expired - Fee Related CN103603508B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104674796A (en) * 2015-03-06 2015-06-03 中国建筑第二工程局有限公司 Formwork system of underground shelter cast-in-place pile and construction method thereof
CN105862946A (en) * 2016-04-06 2016-08-17 中国十七冶集团有限公司 Construction method for large deep foundation pit support during encountering of waste civil air defense
CN110144903A (en) * 2019-06-05 2019-08-20 中国建筑第七工程局有限公司 A kind of pattern foundation pit supporting structure meets the construction in bomb shelter

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CN102409666A (en) * 2011-11-30 2012-04-11 李海广 Construction process of pile foundation in air-raid shelter trend
CN103046765A (en) * 2013-01-24 2013-04-17 李海广 Construction process for continued application of air-raid shelter
CN103195090A (en) * 2013-04-15 2013-07-10 合肥建工集团有限公司 Soft-form-shaped strut structure formed by filling concrete through small hole on underground cavity

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Publication number Priority date Publication date Assignee Title
JPH1018608A (en) * 1996-07-05 1998-01-20 Fujita Corp Earthquake resisting reinforcing method of existing reinforced concrete construction building
CN102127974A (en) * 2011-04-18 2011-07-20 上海现代建筑设计(集团)有限公司 Design and construction method of additional cellar under existing building
CN102409666A (en) * 2011-11-30 2012-04-11 李海广 Construction process of pile foundation in air-raid shelter trend
CN103046765A (en) * 2013-01-24 2013-04-17 李海广 Construction process for continued application of air-raid shelter
CN103195090A (en) * 2013-04-15 2013-07-10 合肥建工集团有限公司 Soft-form-shaped strut structure formed by filling concrete through small hole on underground cavity

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104674796A (en) * 2015-03-06 2015-06-03 中国建筑第二工程局有限公司 Formwork system of underground shelter cast-in-place pile and construction method thereof
CN105862946A (en) * 2016-04-06 2016-08-17 中国十七冶集团有限公司 Construction method for large deep foundation pit support during encountering of waste civil air defense
CN110144903A (en) * 2019-06-05 2019-08-20 中国建筑第七工程局有限公司 A kind of pattern foundation pit supporting structure meets the construction in bomb shelter
CN110144903B (en) * 2019-06-05 2021-04-09 中国建筑第七工程局有限公司 Construction method for foundation pit support in air defense cavity

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