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One-time continuous pouring and multi-cycle real-time temperature control construction technology of super-large-volume concrete

A construction technology and multi-cycle technology, which is applied in the direction of construction, building structure, and building material processing, can solve the problems of little effect, labor, and material waste, and achieve obvious effects, reduce construction costs, and ensure safety. Effect

Active Publication Date: 2017-09-08
中如建工集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But for "super-large volume concrete", the above construction methods are either time-consuming, material-intensive, labor-intensive, or take care of one and lose the other, or have little effect

Method used

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  • One-time continuous pouring and multi-cycle real-time temperature control construction technology of super-large-volume concrete
  • One-time continuous pouring and multi-cycle real-time temperature control construction technology of super-large-volume concrete
  • One-time continuous pouring and multi-cycle real-time temperature control construction technology of super-large-volume concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0272] Wuhu Bozhuang Spring Blossom Phase V new construction project

[0273] The project is located at Weiqi Road, Wushi Road, Wuhu City, Anhui Province. The frame-shear structure consists of 1 floor underground and 28 floors above the ground, with a total construction area of ​​98,630m2 2 . The foundation floor is composed of main building rafts (H=3800mm) and podium rafts (H=1700mm), and the underground building area is 30099m 2 , is a super-large volume concrete floor. The base plate pouring construction is in the high temperature period in summer from July to August (the average daytime temperature is above 35 degrees).

[0274] The project adopts this technology, and the interior of the raft foundation is preset in groups according to the circulating pipe network, the surface of the raft foundation is stored and maintained, and the precipitation recharge and rainwater collection system on the construction site are adopted. The combined dual-control monitoring method a...

Embodiment 2

[0276] Wuhu Shimao Riverside Garden 4-1# plot characteristic commercial street project

[0277] The project is located on Beijing West Road, Wuhu City, Anhui Province, with a total construction area of ​​78463m 2 , one basement floor, with an underground building area of ​​about 21,230m 2 , the thickness of the basement floor is 800mm, the thickness of the cap is mainly 2200mm and 2600mm, and the maximum thickness of the core tube foundation concrete is 5300mm. The concrete pouring of the basement floor was at the end of July, which was midsummer and the average daily temperature was above 30°C. This project applies this technology, and the circulating pipe network is preset in groups in the raft foundation. The internal circulation water and the surface water storage and maintenance water of the raft foundation come from the groundwater of precipitation, as well as the precipitation recharge and rainwater collection system on the construction site. The dual-control monitori...

Embodiment 3

[0279] Wuhu Shimao Riverside Garden 5# plot hotel and office building project

[0280] The project is located in Xinwu Road, Wuhu City, Anhui Province, with a frame-shear structure and a total construction area of ​​96,505m 2 , underground construction area of ​​22000m 2 , 26 floors above ground, 2 floors underground, the thickness of the basement floor is 1000mm, the thickness of the cap is mainly 2300mm and 2800mm, and the maximum thickness of the core tube foundation concrete is 5200mm.

[0281] The project has successfully applied this process. The circulation pipe network is preset in groups according to the inside of the foundation floor. The internal circulation water comes from the groundwater of precipitation. The system realizes the real-time temperature control system of large-scale water system (water network) that realizes "circulating water heat dissipation, surface water storage, heat preservation and maintenance, external precipitation recharge and rainwater c...

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Abstract

The invention discloses extra-huge-volume concrete once continuous pouring multi-cycle real-time temperature control construction technology. Flow and flow rate of circulating water is automatically regulated by a concrete internal and external temperature real-time monitoring system. Hydration heat inside concrete is gradually reduced to balance the inside and outside temperature difference of the concrete, effectively prevent temperature difference stress inside and outside the concrete from generating a crack, and ensure that construction quality of "extra-huge-volume concrete" meets design and specification requirements. The extra-huge-volume concrete one-time continuous pouring multi-cycle real-time temperature control construction technology has the advantages of saving a lot of water resources, achieving green construction, and conforming to national energy saving and environmental protection policy orientation due to the fact that three communicated circulating water systems including water in a circulating pipe network, water in an entire storage thermal insulation maintenance pool of a base plate and recharge water come from a foundation pit rainfall and site rainwater collection system.

Description

technical field [0001] The invention relates to a concrete construction method, in particular to a super-large-volume concrete one-time continuous pouring multi-cycle real-time temperature control construction technology. Background technique [0002] At present, my country's engineering construction is developing rapidly, high-rise and super high-rise buildings are increasing day by day, and the application of mass concrete is becoming more and more extensive. Article 2.1.1 of "Code for Construction of Mass Concrete" (GB50496-2009) (hereinafter referred to as "the Code") and Article 2.1.10 of "Specification for Design of Ordinary Concrete Mix Proportion" JGJ5 5 - 2 0 0 0 apply to mass concrete Described as: a large volume of concrete whose minimum geometric dimension of the concrete structure is not less than 1m, or concrete that is expected to cause harmful cracks due to temperature changes and shrinkage caused by the hydration of the cementitious material in the concrete....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/02
Inventor 江林宋小忠郭小兵崔贵山卢佩言江婷婷许小军
Owner 中如建工集团有限公司
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