Construction method of guide walls for underground diaphragm wall grooving

Abstract

The invention discloses a method for constructing a guide wall in a groove of an underground continuous wall. The digging position of the guide wall is determined according to the axis of the underground continuous wall; , the excavation elevation is controlled by manual trimming; the position of the guide wall is determined on the concrete pad level, and then steel bars are tied, the outer side of the guide wall is replaced by soil formwork, and the inner side is erected with steel formwork; the formwork is removed after the concrete reaches strength, and the inner wall is simultaneously The upper layer supports 80×80mm square timber; add reinforcement bars to make the guide wall a whole and achieve the purpose of impermeability. The construction joints should be staggered from the joints of the underground diaphragm wall; Seams cannot be set on the same section. The construction method has simple and compact steps, the quality of the produced guide wall is stable, meets the design requirements, less material is consumed, the construction period is short, and the production cost is reduced.

Description

technical field [0001] The invention relates to a construction method, in particular to a construction method of a guide wall in the trench of an underground continuous wall. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Concrete is one of the most important civil engineering materials today. It is composed of cementitious materials, granular aggregates (also known as aggregates), water, and if necessary, admixtures and admixtures prepared in a certain proportion, uniformly stirred, densely formed, cured and hardened. artificial stone. Concrete has the characteristics of rich raw materials, low price and simple production process, so its consumption is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. These characteristics make it widely used, not only ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems that the above-mentioned existing construction method steps are not tight, so that the quality of the guide wall cannot be guaranteed, the use requirements are not met, the cost is increased, raw materials are wasted, and the construction period is prolonged, and an underground continuous wall is designed. The construction method of the guide wall in the groove, the construction method has simple steps, the steps are tight, the quality of the produced guide wall is stable, meets the design requirements, and the consumption of materials is less, the construction period is short, the production cost is reduced, and the existing construction problem is solved. The steps of the method are not tight, so that the quality of the guide wall cannot be guaranteed, the use requirements cannot be met, the cost is increased, raw materials are wasted, and the construction period is prolonged.