Layer-by-layer pouring construction technology of large-volume concrete caps

A large-volume concrete and construction technology technology, which is applied in construction, infrastructure engineering, etc., can solve problems such as easy cracks, and achieve the effect of improving pouring quality, high-quality caps, and the overall structure of caps is firm and reliable

Active Publication Date: 2020-04-21
CHINA FIRST HIGHWAY ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a layered pouring construction technology for large-volume concrete caps to improve the problem that cracks are easily generated during the construction of traditional large-volume concrete caps

Method used

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  • Layer-by-layer pouring construction technology of large-volume concrete caps
  • Layer-by-layer pouring construction technology of large-volume concrete caps
  • Layer-by-layer pouring construction technology of large-volume concrete caps

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Effect test

Embodiment

[0044] see figure 1 - Figure 4 , the present embodiment provides a layered pouring construction process for large-volume concrete caps, the construction process includes:

[0045] Step 100. Excavate the foundation pit 100 at the set position, and mark the set position according to the design drawings to improve the accuracy of the excavation of the foundation pit 100. You can use lime to mark, or use ink line marks, etc. . During the excavation process of the foundation pit 100, the protective function of the surrounding walls of the foundation pit 100 should be well protected to prevent the foundation pit 100 from collapsing, improve safety, and improve construction quality. Specifically, protective walls may be provided at the surrounding walls of the foundation pit 100 .

[0046] Step 200, excavate at least one reinforcement hole 200 at the bottom of the foundation pit 100, the reinforcement hole 200 can be a cylindrical hole, the number of reinforcement holes 200 is set ...

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Abstract

The invention provides a layered pouring construction technology for a mass concrete pile cap. The construction technology comprises the steps that a foundation pit is excavated at a set position; atleast one reinforcing hole is excavated in the bottom of the foundation pit; a reinforcing cage is placed in the at least one reinforcing hole, and concrete is poured; and the pile cap is poured in alayered mode from bottom to top and is subjected to cooling treatment by utilizing a cooling water pipe after pouring is finished. According to the construction technology, at least one reinforcing hole is formed in the bottom of the foundation pit, in the pile cap pouring process, the reinforcing holes are poured, at least one reinforcing rib formed by reinforced concrete is arranged at the bottom of the pile cap after the pile cap is poured, the overall structure of the pile cap is firmer and more reliable, and the use is safer; in the pile cap pouring process, layered pouring is adopted, the pouring quality of each layer of a pile cap body is convenient to control, and then the pouring quality of the integral pile cap can be improved; and the temperature of the pile cap is controlled bythe cooling water pipe, and therefore the cracking condition of the pile cap can be effectively improved, the quality of the pile cap is high.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a construction technique for layered pouring of large-volume concrete caps. Background technique [0002] The application of mass concrete came into being with the construction of modern society, and with the rapid economic development in the world, it is more and more widely used. In the early 1980s, mass concrete technology began to be promoted in my country, and it was quickly widely used in high-rise buildings, subways, bridges and other projects. Due to the large volume and complex structure of mass concrete, and the fact that concrete is a poor conductor of heat, the heat of cement hydration accumulates inside the structure and is difficult to spread. If this heat control problem is not solved properly, it is easy to cause cracks in the mass concrete, affect the integrity and durability of the structure, and endanger the safety of the structure. [0003] Mass concrete ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/14E02D15/02
CPCE02D15/02E02D27/14
Inventor 刘方华陈胜亮王孟林
Owner CHINA FIRST HIGHWAY ENG CO LTD
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