Grooving method for underground diaphragm wall

Abstract

The invention relates to a grooving method for an underground diaphragm wall. The grooving method comprises the steps that a groove body is grabbed and dug in a groove section of a constructed guide wall, and slurry is introduced into the groove body; when the groove body grabs and digs a rock stratum, a grabbing and digging guide hole with a preset length is drilled; and the rock stratum with thegrabbing and digging guide hole is grabbed and dug to a preset depth, and the grabbed and dug rock is removed to form the groove section of the underground diaphragm wall. When the underground diaphragm wall is grooved to the rock stratum, a rotary drilling machine is adopted to drill the grabbing and digging guide hole, and finally the rock stratum with the grabbing and digging guide hole is grabbed by a grab machine, so that the construction capacity of various common machines is fully utilized, the use of machines with high cost is avoided, the construction cost is reduced, and meanwhile,the operation capacity of the grab machine is improved, and the construction progress and quality of grooving are guaranteed; and the rotary drilling machine is adopted to drill the grabbing and digging guide hole, so that the vibration generated when a drilling machine or a punching machine is adopted for drilling is avoided, and the influence of punching or drilling vibration on the surroundingenvironment is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a groove-forming method for an underground continuous wall. Background technique [0002] The underground diaphragm wall is a basic project. 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 trench, hang it in the trench Put the reinforcement cage, and then use the conduit method to pour underwater concrete to form a unit trough section. In this way, a continuous reinforced concrete wall is built underground as a water interception, seepage prevention, load-bearing, and water retaining structure. At present, the construction method of underground diaphragm wall forming groove mainly contains a kind of method that adopts groove milling machine construction, and the quantity of this equipment is very small, and the pric...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above technical problems, especially when the grab grooving machine is combined with a drilling machine or a punching machine, the grooving efficiency is low, the cost is high, the vibration is large, and many machines are used for grooving, which has a great impact on surrounding buildings. For the problem of high wear of drilling machine or punching machine, the following technical solutions are proposed:

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