Construction method for slope supporting and reinforcing

A construction method and technology for slopes, applied in excavation, foundation structure engineering, sheet pile walls, etc., can solve the problems of large influence of soil properties and inability to provide pull-out resistance, and achieve stable slopes, pull-out and shear resistance Strong and stable effect

Inactive Publication Date: 2020-11-03
CHINA FIRST METALLURGICAL GROUP
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Problems solved by technology

However, bolt support also has its limitations, mainly due to the fact that it is greatly affected by t

Method used

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  • Construction method for slope supporting and reinforcing
  • Construction method for slope supporting and reinforcing
  • Construction method for slope supporting and reinforcing

Examples

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Embodiment Construction

[0035] For a better understanding of the present invention, the following examples are further descriptions of the present invention, but the content of the present invention is not limited to the following examples.

[0036] The invention provides a construction method for slope support and reinforcement, the construction process of which is as follows: figure 1 shown, including the following steps:

[0037] S1: Use an excavator to excavate the foundation pit, reserve a 20cm protective layer, manually excavate, and remove the loose soil before supporting;

[0038] S2: Use a level and a total station to determine the drilling position according to the design requirements and the subsequent fixing position of the steel mesh. Drill the hole at the determined position and the depth of the hole must meet the anchoring depth, and use a high-pressure air pipe to remove the dust and dust in the hole. debris blown out;

[0039] S3: if figure 1 , figure 2 and image 3 As shown to...

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Abstract

The invention relates to a construction method for slope supporting and reinforcing. The construction method comprises the steps of excavating a foundation pit, and performing slope arrangement; drilling; manufacturing spiral grouting floral tubes, specifically, taking spiral ribs and the grouting floral tubes, forming a plurality of grout outlets in the grouting floral tubes, inserting the grouting floral tubes into the spiral ribs, enabling the grouting floral tubes and the spiral ribs to be connected and fixed through inner and outer cross ribs, and enabling the outer cross ribs to extend out of the spiral ribs; driving the spiral grouting floral tubes into the drilled holes, anchoring the bottom ends of the spiral grouting floral tubes into a soil layer at the bottom of the holes, andenabling the outer cross ribs to be located outside the drilled holes; grouting the spiral grouting floral tubes in two times; spraying concrete to the slope surface, paving a reinforcing mesh on theslope surface before final setting of the concrete, and enabling the reinforcing mesh to be fixedly connected with outer cross ribs; and spraying the concrete onto the slope concrete paved with the reinforcing mesh for the second time. The spiral ribs are combined with the grouting floral tubes, the spiral grouting floral tubes, the concrete spraying layer and the side slope form a combined actionsystem through grouting, secondary spraying and anchoring and the like, and loosening and separation of the soft soil side slope are prevented.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for slope support and reinforcement for improving the mechanical properties of soft soil slopes. Background technique [0002] Soft soil has the characteristics of high water content, high compressibility, low water permeability, low mechanical strength, small critical height, and poor stability. As an unfavorable geological body, it has a special failure mode. When the slope height reaches a certain limit, the lateral pressure of the soft soil will inevitably exceed the shear strength of the retaining structure, resulting in overall landslides. As an important form of geotechnical reinforcement, bolt support is more and more recognized due to its advantages of safety, high efficiency, and low cost, and has been increasingly recognized in the field of international geotechnical engineering. Many applications. However, bolt support also has it...

Claims

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Application Information

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IPC IPC(8): E02D17/20E02D17/04E02D5/74E02D5/76
CPCE02D5/74E02D5/76E02D17/04E02D17/20
Inventor 谢均杨志军赵海莲杨卫东李闯
Owner CHINA FIRST METALLURGICAL GROUP
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