Diaphragm wall construction method

Abstract

The invention discloses a diaphragm wall construction method. The diaphragm wall construction method includes the steps that firstly, trench forming is conducted; and secondly, reinforcement cage hoisting is conducted. The diaphragm wall construction method is characterized by further including the step that thirdly, concrete pouring is conducted, wherein concrete is stirred in the pouring processthrough vibration devices on the reinforcement cage, and wall forming is conducted. According to the diaphragm wall construction method, the concrete is helped by the vibration devices to penetrate through the reinforcement cage from the inner portion of the reinforcement cage and to flow to the portion outside the reinforcement cage, the whole reinforcement cage is wrapped in the concrete, and the risk that the reinforcement cage is exposed and corroded is prevented. Motors and vibrating bars are adopted for the vibration devices, the vibration range can be increased, more concrete can be vibrated so that liquidity can be enhanced, and distribution is more uniform.

Description

technical field [0001] The invention relates to the construction of an underground continuous wall. Background technique [0002] The underground diaphragm wall is a foundation project. During construction, a trenching machine is used on the ground to excavate a narrow and long deep trench along the peripheral axis of the deep excavation project under the condition of mud retaining wall. After clearing the tank, hang the reinforcement cage in the tank, and then use the conduit method to pour underwater concrete to form a unit tank section. This is done section by section, and a continuous reinforced concrete wall is built underground as a water interception, anti-seepage, load-bearing, and water-retaining structure. The underground diaphragm wall is suitable for pumping stations, pools; building foundation pits; underground oil depots and warehouses; municipal pipe trenches and culverts; shafts of shield tunneling and other projects; various deep foundations and pile found...

AI Technical Summary

Problems solved by technology

This results in poor fluidity of the concrete in the reinforcement cage, especially from the inside to the outside of the reinforcement cage.

Therefore, the poured concrete in the prior art is often difficult to flow to the outside of the reinforcement cage, which causes the reinforcement cage to be exposed and is easily corroded, resulting in quality defects of the reinforcement cage exposed reinforcement after excavation of the foundation pit, causing major economic losses to the construction unit

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