CN102900099A - Drop-slab construction process for underground concrete structures - Google Patents
Drop-slab construction process for underground concrete structures Download PDFInfo
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- CN102900099A CN102900099A CN2011102097563A CN201110209756A CN102900099A CN 102900099 A CN102900099 A CN 102900099A CN 2011102097563 A CN2011102097563 A CN 2011102097563A CN 201110209756 A CN201110209756 A CN 201110209756A CN 102900099 A CN102900099 A CN 102900099A
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Abstract
The invention discloses a drop-slab construction process for underground concrete structures. The drop-slab construction process for underground concrete structures includes steps of firstly, mounting a drop-slab system; secondly, starting to dig next-tier soil mass to next-tier construction elevation; thirdly, placing down a formwork platform when next-tier soil is dug in place; fourthly, performing horizontal and elevation positioning of the formwork platform after the formwork platform is placed down in place; fifthly, performing binding to next-tier floors and reinforcing steel bars of beams; sixthly, pouring next-tier concrete; and seventhly, starting to dig the tier after the next-tier soil mass, and repeating the steps of one to six until construction reaches the final position. The drop-slab construction process is suitable for underground concrete structures, in particular to the structure of a basement under construction by a top-down method, digging and construction can be performed to a next floor during curing of concrete, and accordingly time for curing of concrete in conventional construction is omitted.
Description
Technical field
The present invention relates to a kind of technical field of building construction, relate in particular to a kind of underground concrete structure and fall the mould construction technology.
Background technology
In the underground concrete structure construction of existing China, formwork construction technology is also relatively backward, as in the contrary sequence method Underground Construction, template construction adopts the loose mould of scaffold tubes to support more, and the template system of its horizontal beam slab-type apartment building face structure generally all adopts scaffold support system, owing to being supported on the soil layer of lower excavation face, therefore need the interim bed course of cast, increase cost, behind the cast floor, decentering again, after transportation was gone out, earth excavation repeated the dismounting operation many downwards, work situation is abominable, working strength is large, takies long in time limitly, and operating efficiency is very low.Also have indivedual engineerings to adopt and fall the construction of die worker's method, but its jacking system is generally backward Chain block, jack etc., efficiency of construction is low, can not satisfy the job requirements of industrialization mechanization.
Summary of the invention
The object of the present invention is to provide a kind of underground concrete structure to fall the mould construction technology, in order to solve in the construction of existing underground concrete structure, engineering is complicated, engineering cost is high, the problem of inefficiency and engineering time.
The mould construction technology falls in a kind of underground concrete structure of the present invention, wherein, comprising:
Step 1: install and fall die body system;
Step 2: begin to dig down a layer soil body to the construction elevation of described lower one deck;
Step 2: treat that described lower one deck shoveling puts in place, transfers template platform;
Step 3: described transferring after template platform puts in place, and carry out level and the absolute altitude location of described template platform;
Step 4: carry out the floor of described lower one deck and the reinforcing bar binding of beam;
Step 5: the concrete of building described lower one deck;
Step 6: excavation descends the soil body of one deck again, and repeats above-mentioned steps one to step 6, until construction reaches the final position.
The mould construction technology falls in aforesaid underground concrete structure, and wherein, the described die body system of falling is suspended on the floor.
The mould construction technology falls in aforesaid underground concrete structure, wherein, utilizes the elevation and subsidence mechanical device that falls die body system to transfer described template platform in the described step 3.
The mould construction technology falls in aforesaid underground concrete structure, wherein, also comprises, at the floor of described lower one deck, it is lifting suspension rod hole that die body falls in reservation.
The mould construction technology falls in aforesaid underground concrete structure, wherein, also comprises, build the concrete of described lower one deck after, curing concrete.
The mould construction technology falls in underground concrete structure, being suitable for underground concrete structure uses, especially adopt the basement structure of reverse construction, the die body system of falling that this technology utilization is suspended in the basement first floor constructs, during concrete curing, just can carry out the excavation and construction of next floor, omitted the concrete curing time in traditional construction, do not need to pour into a mould interim bed course and come soil mass consolidation, save the engineering direct cost.
Underground concrete structure falls the mould construction technology and has the following advantages at least:
(1) automaticity is high.Fall mould operation platform system and realize falling mould by machinery or hydraulic control system, greatly promoted the automaticity of construction, avoided traditional loaded down with trivial details formwork link, save cost of labor.
(2) accelerate the duration.Fall the mould construction technology and need not to build bed course in the normal construction stage, and just can carry out the excavation of next stage soil layer in the concrete curing stage, each work progress overlap joint is good, has saved the duration.
(3) safe and reliable.Fall the mould construction technology and usually adopt the lifting suspension rod and strengthen the suspension rod co-operation, guarantee the safe and reliable of mould bases operation platform lifting operating mode and concreting duty construction.
(4) construction quality is good.This formwork system adopts suspension rod and strengthens suspension rod and fix, and has reduced the stressed span of template, avoids conventional construction method because of the structure planeness problem of the sedimentation generation of bed course, and construction quality is guaranteed.
Description of drawings
Figure 1 shows that underground concrete structure of the present invention falls the mould construction technology construction system structure chart that falls after die body is is installed;
Figure 2 shows that the construction system structure chart after mould construction technology below template platform falls in underground concrete structure of the present invention;
Figure 3 shows that the construction system structure chart after the reinforcing bar binding of mould construction technology floor and beam falls in underground concrete structure of the present invention;
Figure 4 shows that the construction system structure chart of mould construction technology behind the step 6 concreting falls in underground concrete structure of the present invention.
The specific embodiment
The Specific construction step of mould construction technology falls in the below with construction sequence narration underground concrete structure of the present invention generally, wherein, following construction sequence begins construction as example take the underground first floor from building.
The step that the mould construction technology falls in a kind of underground concrete structure of the present invention comprises:
Step 1: will fall die body system and be installed on the underground first floor;
Figure 1 shows that underground concrete structure of the present invention falls the mould construction technology construction system structure chart that falls after die body is is installed, as shown in Figure 1, this falls die body is 1 to be suspended on the floor of the first floor, this falls die body is to be fixed with template platform 5 on 1, and is that lifting hanger rod unit 3 and parts 4 control that to fall die body be 1 lifting by falling die body.
Step 2: begin to dig down a layer soil body to underground two layers construction elevation;
Step 3: treat that underground two layers of shoveling put in place, transfer template platform 5;
Figure 2 shows that the construction system structure chart after mould construction technology below template platform falls in underground concrete structure of the present invention, as shown in Figure 2, template platform 5 has been transferred to assigned address, wherein, can utilize the various elevation and subsidence mechanical devices that fall die body system to transfer described template platform in the step 3, the elevation and subsidence mechanical of transferring be not limited among Fig. 2 for example, the various elevation and subsidence mechanical devices that reach corresponding effect all can adopt.
Step 4: transfer after template platform puts in place, and carry out level and the absolute altitude location of template platform;
Step 5: carry out underground two layers floor and the reinforcing bar binding of beam;
Figure 3 shows that the construction system structure chart after the reinforcing bar binding of mould construction technology floor and beam falls in underground concrete structure of the present invention, to fall die body be lifting suspension rod hole reserving in this step week, to carry out the 3rd layer construction, certainly, if this step has reached last one deck, also can not stay above-mentioned reservation to fall die body is lifting suspension rod hole.
Step 6: build underground two layers concrete;
Figure 4 shows that the construction system structure chart of mould construction technology behind the step 6 concreting falls in underground concrete structure of the present invention, as shown in Figure 4, built concrete 4 on the whole construction system structure, wherein, can also carry out simultaneously concrete maintenance.
Step 7: the soil body of excavation F3/B3, the similar above-mentioned steps of the construction sequence of F3/B3 one is to step 6.
Above-mentioned only take the underground first floor and underground two layers construction sequence as example, the form of construction work of other underground floors and above-mentioned form of construction work are similar, give unnecessary details therefore seldom do.
To sum up, the mould construction technology falls in underground concrete structure of the present invention, being suitable for underground concrete structure uses, especially adopt the basement structure of reverse construction, the die body system of falling that this technology utilization is suspended in the basement first floor constructs, during concrete curing, just can carry out the excavation and construction of next floor, omit the concrete curing time in traditional construction, do not needed to pour into a mould interim bed course and come soil mass consolidation, saved the engineering direct cost.
Above-described embodiment provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be in the situation that do not break away from invention thought of the present invention; above-described embodiment is made various modifications or variation; thereby protection scope of the present invention do not limit by above-described embodiment, and should be the maximum magnitude that meets the innovation new feature that claims mention.
Claims (5)
1. the mould construction technology falls in a kind of underground concrete structure of the present invention, it is characterized in that, comprising:
Step 1: install and fall die body system;
Step 2: begin to dig down a layer soil body to the construction elevation of described lower one deck;
Step 3: treat that described lower one deck shoveling puts in place, transfers template platform;
Step 4: described transferring after template platform puts in place, and carry out level and the absolute altitude location of described template platform;
Step 5: carry out the floor of described lower one deck and the reinforcing bar binding of beam;
Step 6: the concrete of building described lower one deck;
Step 7: excavation descends the soil body of one deck again, and repeats above-mentioned steps one to step 6, until construction reaches the final position.
2. technique according to claim 1 is characterized in that, the described die body system of falling is suspended on the floor.
3. technique according to claim 1 is characterized in that, utilizes the elevation and subsidence mechanical device that falls die body system to transfer described template platform in the described step 3.
4. technique according to claim 1 is characterized in that, also comprises, at the floor of described lower one deck, it is lifting suspension rod hole that die body falls in reservation.
5. technique according to claim 1 is characterized in that, also comprises, build the concrete of described lower one deck after, curing concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011102097563A CN102900099A (en) | 2011-07-26 | 2011-07-26 | Drop-slab construction process for underground concrete structures |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102097563A CN102900099A (en) | 2011-07-26 | 2011-07-26 | Drop-slab construction process for underground concrete structures |
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| CN102900099A true CN102900099A (en) | 2013-01-30 |
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| CN2011102097563A Pending CN102900099A (en) | 2011-07-26 | 2011-07-26 | Drop-slab construction process for underground concrete structures |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131579A (en) * | 2014-05-27 | 2014-11-05 | 中国建筑第四工程局有限公司 | Method for quickening earthwork digging and transporting in top-down construction |
| CN105386461A (en) * | 2015-11-10 | 2016-03-09 | 上海建工集团股份有限公司 | Reverse mechanical formwork descending system and formwork descending method thereof |
| CN105401598A (en) * | 2015-11-10 | 2016-03-16 | 上海建工集团股份有限公司 | Automatic formwork lowering system hoisting device and method for top-down construction |
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| JPH0892983A (en) * | 1994-09-28 | 1996-04-09 | Kajima Corp | Construction method of permanent structure underground exterior wall and earth retaining wall head in inverted construction method |
| KR100775767B1 (en) * | 2006-08-14 | 2007-11-12 | 깨뱉시스템주식회사 | Top-down method using the vertical steel bar for the src column |
| CN101575911A (en) * | 2009-05-27 | 2009-11-11 | 上海市第一建筑有限公司 | Top-down decreasing-formwork formwork system and construction method |
| CN101672041A (en) * | 2009-09-18 | 2010-03-17 | 天津二十冶建设有限公司 | Top-down construction method of large underground structure outer wall |
| CN101736756A (en) * | 2009-12-04 | 2010-06-16 | 上海市第二建筑有限公司 | Method for constructing soft soil foundation reverse interlayer |
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2011
- 2011-07-26 CN CN2011102097563A patent/CN102900099A/en active Pending
Patent Citations (5)
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| JPH0892983A (en) * | 1994-09-28 | 1996-04-09 | Kajima Corp | Construction method of permanent structure underground exterior wall and earth retaining wall head in inverted construction method |
| KR100775767B1 (en) * | 2006-08-14 | 2007-11-12 | 깨뱉시스템주식회사 | Top-down method using the vertical steel bar for the src column |
| CN101575911A (en) * | 2009-05-27 | 2009-11-11 | 上海市第一建筑有限公司 | Top-down decreasing-formwork formwork system and construction method |
| CN101672041A (en) * | 2009-09-18 | 2010-03-17 | 天津二十冶建设有限公司 | Top-down construction method of large underground structure outer wall |
| CN101736756A (en) * | 2009-12-04 | 2010-06-16 | 上海市第二建筑有限公司 | Method for constructing soft soil foundation reverse interlayer |
Non-Patent Citations (1)
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| 李增辉、张瑞、姜向红、章晓鹏、陆云、顾国明: ""逆作法新型自动化降模体系的设计及应用"", 《建筑施工》, vol. 33, no. 6, 25 June 2011 (2011-06-25), pages 448 - 450 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131579A (en) * | 2014-05-27 | 2014-11-05 | 中国建筑第四工程局有限公司 | Method for quickening earthwork digging and transporting in top-down construction |
| CN105386461A (en) * | 2015-11-10 | 2016-03-09 | 上海建工集团股份有限公司 | Reverse mechanical formwork descending system and formwork descending method thereof |
| CN105401598A (en) * | 2015-11-10 | 2016-03-16 | 上海建工集团股份有限公司 | Automatic formwork lowering system hoisting device and method for top-down construction |
| CN105401598B (en) * | 2015-11-10 | 2017-04-19 | 上海建工集团股份有限公司 | Automatic formwork lowering system hoisting device and method for top-down construction |
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Application publication date: 20130130 |