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Soft foundation treatment depth prediction method for solving uneven settlement of bridgehead

A soft foundation treatment and depth prediction technology, applied in the field of infrastructure construction, can solve problems such as uneven bridgeheads and the inability to accurately predict the depth of bridgehead reinforcement sections

Active Publication Date: 2021-08-31
中建七局交通建设有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a method for predicting the treatment depth of the soft foundation of uneven settlement at the bridge head, which effectively solves the problem that the depth of the bridge head reinforcement section cannot be accurately predicted

Method used

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Experimental program
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Embodiment Construction

[0026] Specific embodiments of the present invention will be further described below.

[0027] The present invention includes:

[0028] S1: Determine the thickness Z of the soft soil layer at the bridge, and the thickness Z of the soft soil layer is determined according to the geotechnical engineering investigation report of the bridge;

[0029] S2: Determine the vertical load P transmitted from the bridge deck to the abutment 1 , the vertical load P 1 Determined by bridge design data;

[0030] S3: Determine the vertical load P transmitted from the pavement structure layer and vehicle load to the top surface of the soft soil; the vertical load P is determined by the bridge design data;

[0031] S4: From the road design data, determine the abutment height H, the average width b of the top surface and the bottom surface;

[0032] S5: Determine the weight of the abutment according to the type of abutment building materialsγ G , for concrete-built abutments, γ G =25kN / m 3 ;...

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Abstract

The invention relates to a soft foundation treatment depth prediction method for solving uneven settlement of a bridgehead. The problem that the depth of a reinforced section of the bridgehead cannot be accurately predicted is effectively solved. According to the soft soil property of an abutment, the design data of the abutment, the allowable gradient of the differential settlement of the bridgehead and other data, the reinforcement depths of the soft foundations at different positions of the bridgehead are determined, and on one hand, material and labor hour waste caused by the adoption of the uniform reinforcement depth is avoided; on the other hand, the problem of bumping at the bridgehead is avoided, and differential settlement at the bridgehead can be within an allowable value.

Description

technical field [0001] The invention relates to the field of infrastructure construction, in particular to a method for predicting the treatment depth of a soft foundation for uneven settlement at a bridge head. Background technique [0002] In soft ground areas, vehicle jumping at the bridge head is a common disease. One of the measures to solve the problem of vehicle jumping at the bridge head is to set a soft foundation reinforcement section with a gradual transition in length at the bridge head, that is, the reinforcement section near the abutment is the deepest and far away from the abutment. The depth of the reinforcement section at the bridge head is gradually reduced, thereby making the settlement gradually transition, and avoiding the excessive difference in settlement at the junction of the bridgehead and the road. [0003] At present, the depth of the soft foundation reinforcement section in the transition section is basically determined based on construction expe...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F30/13G06F119/14
CPCG06F30/20G06F30/13G06F2119/14
Inventor 徐桃张鹏纪红亮姚争张浩王涛刘腾飞迟余睿王剑安楚浩
Owner 中建七局交通建设有限公司