Method for excavating and supporting deep and narrow pipe ditch under complex conditions

Abstract

The invention belongs to the technical field of civil engineering and municipal engineering, and particularly relates to a method for excavating and supporting a deep and narrow pipe ditch under complex conditions. The construction technological process comprises the steps of current situation investigation, exploration pit excavation, pipe ditch excavation, reserved earth ridge parameter determination, reserved earth ridge excavation construction and pipe ditch supporting completion. According to the method for excavating and supporting the deep and narrow pipe ditch under the complex conditions, rapid construction of the deep and narrow pipe ditch can be achieved on the premise that the excavation and supporting quality of the deep and narrow pipe ditch is guaranteed, the construction period is shortened, and the construction cost input is reduced. The method for excavating and supporting the deep and narrow pipe ditch under the complex conditions is particularly suitable for excavation and supporting construction of the deep and narrow pipe ditch, and the excavation and supporting construction method of the deep and narrow pipe ditch is optimized and adjusted according to the design under the condition that the quality requirement is guaranteed to be met.

Description

technical field [0001] The invention belongs to the technical field of civil engineering and municipal engineering, and in particular relates to a method for excavating and supporting deep and narrow pipe trenches under complex conditions. Background technique [0002] Conventional excavation and support methods for deep and narrow pipe trenches: when the site is not limited, machinery can be used for excavation, and excavation can be carried out by step method or direct sloping method, such as figure 1 , 2 As shown; the disadvantages of this method of excavation and support: [0003] (1) Large amount of work to be completed: [0004] (2) The volume of earthwork transportation is large; [0005] (3) Leading to an increase in project cost; [0006] Under the condition of limited space, deep and narrow pipes are usually excavated manually, and support plates or other forms are used for support during the excavation process, such as image 3 shown; [0007] Disadvantages ...

AI Technical Summary

Problems solved by technology

[0003] (1) Large amount of work to be completed:

[0004] (2) The volume of earthwork transportation is large;

[0005] (3) Leading to an increase in project cost;

[0008] (1) Excavation has a large volume of earth and rock;

[0009] (2) The construction progress is slow;

[0010] (3) The amount of support works is large;

[0011] (4) High construction cost

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