Urban rail protection MJS construction method pile intelligent back analysis rapid inversion method and system

A technology of reverse analysis and engineering pile, which is applied in special data processing applications, design optimization/simulation, internal combustion piston engines, etc., and can solve problems that do not have guiding design and construction
CN113378423AActive Publication Date: 2021-09-10CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST
Publication Date
2021-09-10

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Abstract

The invention provides an urban rail protection MJS construction method pile intelligent back analysis rapid inversion method and system. The method comprises the steps: firstly, establishing back analysis system software with a swarm intelligence optimization algorithm alpha-PSO as the core through finite difference analysis software; then giving a basic parameter value range of back analysis system software according to geological exploration initial parameters; continuously optimizing and updating the monitoring data through a back analysis system, continuously calculating to obtain rock-soil body parameters according to the optimized and updated monitoring data, and continuously iterating the rock-soil body parameters to obtain rock-soil body back analysis parameters; and finally, calculating the deformation displacement of the foundation pit and the urban rail according to the rock-soil body back analysis parameters. The inverse analysis parameters obtained through swarm intelligence optimization algorithm alpha-PSO optimization can reflect complex geological conditions in the rock-soil body better, can participate in finite difference calculation to simulate next excavation of the foundation pit, obtain rock-soil body parameters, predict possible risks and avoid construction accidents.
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Description

technical field

[0001] The invention relates to the technical field of railway tunnel construction, in particular to an intelligent back analysis and fast inversion method and system for urban rail protection MJS construction method piles. Background technique

[0002] MJS is a short-distance subway rail transit construction protection isolation construction method pile. It has the characteristics of small disturbance to the surrounding environment, high reinforcement soil strength, and good isolation effect. It is widely used in short-distance urban rail construction protection.

[0003] The MJS construction method is based on the traditional high-pressure jet grouting process, and uses a unique porous pipe and front-end forming device to realize the forced grouting in the hole and the monitoring of the internal pressure in the hole, and control the internal pressure by adjusting the amount of forced grouting. The impact on the environment is significantly reduced, and the ...

Claims

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