Cutting slope frame anchor wall construction method based on soil arching effect

A technology of soil arch effect and construction method, which is applied in basic structure engineering, excavation, construction, etc., can solve the problems of poor theoretical calculation and waste, and achieve the effect of saving project investment, saving materials, and improving design accuracy and construction method.

Active Publication Date: 2013-09-18
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Problems solved by technology

But the existing problem is that the theoretical calculation is slightly inferior to the engineering practice, such as how to calculate the earth pressure acting on the retaining structure a...

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  • Cutting slope frame anchor wall construction method based on soil arching effect
  • Cutting slope frame anchor wall construction method based on soil arching effect
  • Cutting slope frame anchor wall construction method based on soil arching effect

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0027] The construction method of the front frame anchor wall of the cutting slope pre-reinforced pile based on the soil arch effect of the present invention comprises the following steps:

[0028] Firstly, the slope platform is excavated and the slope surface is leveled, and the pre-reinforcement pile 1 is installed on the slope platform of the lowest level of the slope body. The pre-reinforcement pile plays the main role of reinforcement of the slope. The pre-reinforcement pile is a reinforced concrete rectangle. The piles, with a cross-sectional size of 1.75×3.0m, are arranged at even intervals along the length direction of the slope on the lowest level platform of the slope body 5, and the pile spacing is 5-8m.

[0029] Then c...

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Abstract

The invention belongs to the technical field of geotechnical engineering and specifically relates to a cutting slope frame anchor wall construction method based on the soil arching effect. The method includes: firstly excavating slope plain stages and setting pre-reinforcement piles; calculating the length and the sectional area of anchor rods according to Coulomb active earth pressure acting on anchor walls; manufacturing the anchor rods according to the determinate length and the determinate sectional area of the anchor rods and setting anchor wall bodies; finally performing slope green protection construction. The construction method gives full consideration to interaction of structures between the piles, namely the pre-reinforcement piles can form the soil arching effect between the piles. When the frame anchor walls are constructed, the length and the sectional area of the construction anchor rods can be calculated according to the earth pressure, calculation results are accurate, engineering investment can be saved during construction, a target of safety is achieved, and materials can be saved.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to a construction method for a cutting slope frame anchor wall based on the soil arch effect. Background technique [0002] With the rapid development and diversification of slope retaining structures, many lightweight retaining structures have emerged in engineering practice, such as frame anchor walls between pre-reinforced piles and soil nail walls between reinforced piles. But the existing problem is that the theoretical calculation is slightly inferior to the engineering practice, such as how to calculate the earth pressure acting on the retaining structure and how to calculate the structural design under the pile-anchor-soil interaction. In the structural design and construction of the frame anchor wall between pre-reinforced piles, the pre-reinforced piles are set on the slope platform to play an overall stabilizing role. The slope soil pressure o...

Claims

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Application Information

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IPC IPC(8): E02D17/20
Inventor 金海元周宏元顾湘生王祥肖芬芬姚成志谭远发陈大鹏朱树念彭锴郭玲玲
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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