CN104131579A - Method for quickening earthwork digging and transporting in top-down construction - Google Patents
Method for quickening earthwork digging and transporting in top-down construction Download PDFInfo
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- CN104131579A CN104131579A CN201410227019.XA CN201410227019A CN104131579A CN 104131579 A CN104131579 A CN 104131579A CN 201410227019 A CN201410227019 A CN 201410227019A CN 104131579 A CN104131579 A CN 104131579A
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- basement
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- permanent track
- unearthed
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Abstract
The invention discloses a method for quickening earthwork digging and transporting in top-down construction. The method includes: optimally designing permanent lane structures of a basement during basement design so that permanent lanes in the basement can meet requirements on free height, load, width and turning radius of unearthing trucks; when a top-down method is adopted in the basement construction, firstly completing construction of the permanent lanes on each layer of the basement, and then connecting the permanent lanes on each layer of the basement with the construction site ground via temporary excavated slopes, so that excavators and the earth moving trucks can enter the permanent lanes of each layer of the basement for underground construction through the temporary excavated slopes, and earthwork digging and transporting speed in the top-down construction in the basement can be increased. With the method, concrete steel trestles can be omitted, reserved holes for unearthing can be decreased, construction duration can be saved by the aid of the permanent lanes in the basement, construction cost can be saved, and meanwhile, requirements on unearthing in the basement by the top-down method can be met.
Description
Technical field
the present invention relates to a kind of method of accelerating excavation of earthwork and transportation in adverse construction method, belong to highrise building Construction Technique of Underground Works field.
Background technology
along with the development of Building Trade in China, all kinds of types of construction continue to bring out, and the super dark engineering of super large is more and more, in conventional project reverse construction, need to again build concrete steel trestle, and reserved opening is more, and construction hidden danger is large and expense is higher.This practice causes larger waste, does not meet the thinking that current national energy-saving reduces discharging.
Summary of the invention
the object of the invention is to, a kind of method of accelerating excavation of earthwork and transportation in adverse construction method is provided.Need not build concrete steel trestle, utilize the permanent car ramp of basement to carry out basement against being unearthed, save duration and cost.
technical scheme of the present invention:
a kind of method of accelerating excavation of earthwork and transportation in adverse construction method, the method be when design of basement to the permanent lane structure optimal design of basement, the permanent track of basement can be met be unearthed the requirement of headway, load, width and the turning radius of vehicle; When adopting contrary sequence method to carry out basement construction, first complete the permanent track construction of each layer of basement, then through the interim ramp of being unearthed, the permanent track of each layer of basement is connected with ground, building site; So that underground construction is carried out in the permanent track that excavator and muck haulage vehicle can enter each layer of basement by the interim ramp of being unearthed, to accelerate excavation of earthwork and transportation progress in basement adverse construction method.
in preceding method, carry out after the construction that completes basement diaphragm wall and basement steel column in the permanent track of described basement.
in preceding method, the permanent track construction of described basement is to be excavated to design elevation according to plan, then will after levelling of the land, with C20 concrete, lay the thick cure process of carrying out of 200mm; Place formwork after sclerosis again, and the concreting in the permanent track of basement is carried out in assembling reinforcement in template.
in preceding method, described permanent track is built rear maintenance and is removed formwork after 28 days, and then excavator and muck haulage vehicle are allowed for access, and cut the earth in permanent track and muck haulage operation.
in preceding method, in negative two layers of permanent track, be provided with the interim platform that is unearthed with the interim place, ramp of being unearthed.
compared with prior art, the present invention determines the initial stage in scheme, cancels concrete steel trestle, and the permanent lane structure of basement is optimized to design, guarantees be unearthed vehicle headway, cubic metre of earth vehicular load and vehicle width operating radius.Advantage of the present invention is, can cancel concrete steel trestle, reduces the reserved opening that is unearthed, and utilizes the permanent track of basement, saves the construction period, saves construction costs, meets the unearthed requirement of basement top-down method simultaneously.
Accompanying drawing explanation
fig. 1 is schematic diagram of the present invention;
fig. 2 is the floor map in permanent track.
being labeled as in figure: 1-first floor floor, the permanent track of 2-, 3-muck haulage vehicle, 4-bears one deck floor, and 5-is unearthed ramp temporarily, 6-excavator, ground, 7-building site, 8-basement diaphragm wall, 9-steel column, 10-is unearthed platform temporarily.
The specific embodiment
below in conjunction with drawings and Examples, the present invention is described in further detail, but not as any limitation of the invention.
accelerate a method for excavation of earthwork and transportation in adverse construction method, as depicted in figs. 1 and 2.The method be when design of basement to the permanent lane structure optimal design of basement, the permanent track 2 of basement can be met be unearthed the requirement of headway, load, width and the turning radius of vehicle 3; When adopting contrary sequence method to carry out basement construction, first complete the permanent track construction of each layer of basement, then through the interim ramp 5 of being unearthed, the permanent track of each layer of basement is connected with ground, building site 7; So that underground construction is carried out in the permanent track 2 that excavator 6 and muck haulage vehicle 3 can enter each layer of basement by the interim ramp 5 of being unearthed, to accelerate excavation of earthwork and transportation progress in basement adverse construction method.Carry out after the construction that completes basement diaphragm wall 8 and basement steel column 9 in the permanent track of basement.Basement permanent track construction is to be excavated to design elevation according to plan, then will after levelling of the land, with C20 concrete, lay the thick cure process of carrying out of 200mm; Place formwork after sclerosis again, and the concreting in the permanent track of basement is carried out in assembling reinforcement in template.Permanent track is built rear maintenance and is removed formwork after 28 days, and then excavator and muck haulage vehicle are allowed for access, and cut the earth in permanent track and muck haulage operation.In negative two layers of permanent track, be provided with the interim platform 10 that is unearthed with the interim place, ramp of being unearthed.
Embodiment
the present invention digs pile foundation, diaphragm wall 8 and comes of age after beam construction revolving, and adopts contrary sequence method to carry out the construction in the permanent track of basement.Sequence of construction is followed successively by: basement diaphragm wall 8 is constructed → revolved and digs 2 layers of pile foundation and basement steel column 9 construction → basement permanent tracks 2 constructions → negative 2 layers of interim platforms 10 constructions of being unearthed → negative to negative 3 layers and negative 4 layers of interim ramps 5 construction of being unearthed.When carrying out the permanent car ramp construction of basement, be first excavated to design elevation, cubic metre of earth levelling of the land and the thick C20 hardening of concrete of 200mm.Steel tube frame, apart from being 600 * 600mm, step pitch is 1500mm in length and breadth.Template installation, reinforcing bar binding and concreting.The permanent lane structure concrete of basement carries out soil excavation transportation after 28 days.Original template supporting steel pipe scaffold is removed simultaneously.In order to prevent the unearthed differential settlement that occurs after basement permanent ramp construction.Must carry out the limit for tonnage measure to earthwork vehicle.
Claims (5)
1. a method of accelerating excavation of earthwork and transportation in adverse construction method, it is characterized in that: the method be when design of basement to the permanent lane structure optimal design of basement, the permanent track of basement can be met be unearthed the requirement of headway, load, width and the turning radius of vehicle; When adopting contrary sequence method to carry out basement construction, first complete the permanent track construction of each layer of basement, then through the interim ramp of being unearthed, the permanent track of each layer of basement is connected with ground, building site; So that underground construction is carried out in the permanent track that excavator and muck haulage vehicle can enter each layer of basement by the interim ramp of being unearthed, to accelerate excavation of earthwork and transportation progress in basement adverse construction method.
2. method according to claim 1, is characterized in that: carry out after the construction that completes basement diaphragm wall and basement steel column in the permanent track of described basement.
3. method according to claim 2, is characterized in that: the permanent track construction of described basement is to be excavated to design elevation according to plan, then will be by the thick cure process of carrying out of C20 concrete laying 200mm after levelling of the land; Place formwork after sclerosis again, and the concreting in the permanent track of basement is carried out in assembling reinforcement in template.
4. method according to claim 3, is characterized in that: described permanent track is built rear maintenance and removed formwork after 28 days, and then excavator and muck haulage vehicle are allowed for access, and cut the earth in permanent track and muck haulage operation.
5. method according to claim 4, is characterized in that: in negative two layers of permanent track, be provided with the interim platform that is unearthed with the interim place, ramp of being unearthed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410227019.XA CN104131579A (en) | 2014-05-27 | 2014-05-27 | Method for quickening earthwork digging and transporting in top-down construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410227019.XA CN104131579A (en) | 2014-05-27 | 2014-05-27 | Method for quickening earthwork digging and transporting in top-down construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104131579A true CN104131579A (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410227019.XA Pending CN104131579A (en) | 2014-05-27 | 2014-05-27 | Method for quickening earthwork digging and transporting in top-down construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480944A (en) * | 2014-11-27 | 2015-04-01 | 中建一局集团第五建筑有限公司 | Unearthed ramp structure and construction method thereof |
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| CN101498133A (en) * | 2009-02-25 | 2009-08-05 | 广州市住宅建设发展有限公司 | Method and supporting construction for enlarging basement top-down method earth excavation space |
| KR101014796B1 (en) * | 2008-03-03 | 2011-02-15 | 주식회사 한빛구조엔지니어링 | Top-down underground construction method using prefabricated concrete column member as temporary bridge column |
| CN102704507A (en) * | 2012-05-28 | 2012-10-03 | 中国建筑第八工程局有限公司 | Construction method of cover-and-cut reverse construction concrete walls and columns with vertical structures |
| CN102900099A (en) * | 2011-07-26 | 2013-01-30 | 上海市第二建筑有限公司 | Drop-slab construction process for underground concrete structures |
| KR101383817B1 (en) * | 2012-07-04 | 2014-04-08 | 삼표건설 주식회사 | Top down method |
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2014
- 2014-05-27 CN CN201410227019.XA patent/CN104131579A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101014796B1 (en) * | 2008-03-03 | 2011-02-15 | 주식회사 한빛구조엔지니어링 | Top-down underground construction method using prefabricated concrete column member as temporary bridge column |
| CN101498133A (en) * | 2009-02-25 | 2009-08-05 | 广州市住宅建设发展有限公司 | Method and supporting construction for enlarging basement top-down method earth excavation space |
| CN102900099A (en) * | 2011-07-26 | 2013-01-30 | 上海市第二建筑有限公司 | Drop-slab construction process for underground concrete structures |
| CN102704507A (en) * | 2012-05-28 | 2012-10-03 | 中国建筑第八工程局有限公司 | Construction method of cover-and-cut reverse construction concrete walls and columns with vertical structures |
| KR101383817B1 (en) * | 2012-07-04 | 2014-04-08 | 삼표건설 주식회사 | Top down method |
Non-Patent Citations (1)
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| 陈耿等: "逆作法土方开挖的应用和研究", 《山西建筑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480944A (en) * | 2014-11-27 | 2015-04-01 | 中建一局集团第五建筑有限公司 | Unearthed ramp structure and construction method thereof |
| CN104480944B (en) * | 2014-11-27 | 2016-04-06 | 中建一局集团第五建筑有限公司 | Unearthed pits rampway structure and construction method thereof |
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Application publication date: 20141105 |