A pouring and forming construction technology of rib-beam wall with support arm in large sewage pool

Abstract

The invention relates to the technical field of building construction, in particular to a pouring and forming construction process for a large-scale sewage pool with a rib-beam type wall. The inner slope of the wall formed by pouring is 3.6%, and the outer side of the wall is provided with ribs. There are multiple triangular volt arm walls on the outside of the wall body, and the interval between every two triangular volt arm walls is even. The inner formwork, outer formwork and foundation formwork are required for wall construction. The inner formwork includes inner wall formwork, inner triangular truss, inner tie rods and inner formwork back flute. The outer formwork includes outer wall formwork, outer triangular truss , outer formwork back flute, volt arm formwork, volt arm back corrugation, rib beam formwork, outer tie rods, outer connecting rods, outer wall plug formwork and volt arm cover plate, the purpose of the invention is to overcome the existing engineering reinforced concrete wastewater pool The existing problems of pouring can reduce the construction time of the engineering wastewater pool, shorten the entire construction period, and avoid the leakage problem caused by the construction joints.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a pouring and forming construction process for a large-scale sewage pool with a rib-beam wall body. Background technique [0002] The present reinforced concrete wastewater pool is divided into two-step construction, the cushion layer is poured earlier, and the pool wall is made, installed, formworked and poured after leaving the construction joints. As a result, the wastewater pool takes too long in the entire pre-drilling construction period. At the same time, after the wastewater pool is delivered for use, it often fails to meet the design strength requirements due to insufficient maintenance periods. [0003] "Petroleum Engineering Construction" No. 05, 1990 disclosed a continuous pouring of a reinforced concrete pool, which adopts the method of continuous pouring of grout in layers, and completes all pouring of concrete from the bottom of the pool to the wall o...

AI Technical Summary

Problems solved by technology

The technology still has the following problems in practical application: the operation section is short, the vertical layering is more, the construction section of the step shape is many, the construction time of the stubble is not easy to control, the construction joints are easy to appear, and the impermeability of the pool is affected; the method In the middle "the first layer starts from the bottom of the pool, pour the inner and outer bottoms of the construction section to the design elevation and vibrate until the slurry no longer flows, and pour the second layer (that is, the wall of the pool)", the vibration time of the first layer is too long , it is easy to cause concrete segregation, cement and stone separation, sand to sink to the bottom and cement to be fully vibrated to the top, resulting in uneven and compact concrete structure, affecting structural strength and durability; steel formwork is used and no iron parts are allowed to penetrate the pool wall , the supporting steel bars in the formwork have no place to take root, it is difficult to fix, and the formwork is easy to skew

[0007] (2) This scheme is not suitable for the pouring of large sewage pools, which will make the entire construction period too long, and cannot guarantee the strength of large sewage pools;

[0008] (3) During the pouring process, the embedded parts of the steel plate will be displaced and difficult to adjust, resulting in the need for rework in the later stage, which is time-consuming and laborious, and the quality cannot be guaranteed;

[0009] (4) The wall body obtained by this pouring is complex and tall. The traditional formwork support and reinforcement are slow, labor-intensive, time-consuming, costly, and easy to expand the formwork, which will cause safety accidents and quality accidents.

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