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Method for predicting safety of stratum boulders to overlying independent foundation in shield tunneling machine construction

A technology of independent foundation, forecasting method, used in forecasting, earthmoving, mining equipment, etc.

Pending Publication Date: 2021-05-18
沧州交发工程项目管理有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for predicting the safety of independent foundations overlaid by boulders in the formation during shield machine construction, so as to solve the existing technical problems

Method used

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  • Method for predicting safety of stratum boulders to overlying independent foundation in shield tunneling machine construction
  • Method for predicting safety of stratum boulders to overlying independent foundation in shield tunneling machine construction
  • Method for predicting safety of stratum boulders to overlying independent foundation in shield tunneling machine construction

Examples

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Embodiment 1

[0033] A city used the shield machine method to build a subway. During the excavation process, the granite weathered residual soil layer was encountered, and the internal boulders were widely distributed. The upper part of the subway passes through a village, most of which are 2 to 5-storey brick-concrete or frame structures, mostly square independent foundations. The construction of the shield machine may generate a jacking force on the overlying square independent foundation. In order to determine whether the overlying foundation has a safety problem, the method of the present invention is used for prediction.

[0034] According to the shield machine design data, the radius R of the shield machine cutter head is determined to be 3.17m, and the construction moment M is 6181kN m; According to the subway construction plan, determine the depth d of the center of the shield machine cutter head 1 is 8.6m; according to the design data of the upper house, the buried depth d of the ...

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Abstract

The invention discloses a method for predicting the safety of stratum boulders to an overlying independent foundation in shield tunneling machine construction, and the method comprises the following steps: comparing the destructive power of the boulders to a square independent foundation under the rotation action of a cutter head of a shield tunneling machine with the corresponding resistance under the destructive power; predicting and evaluating the influence of stratum boulders on the safety of the overlying square independent foundation in shield tunneling machine construction, so the safety of shield tunneling machine construction on surrounding structures is ensured; meanwhile, the method has the advantages of being high in process performance, reliable in result and convenient to use.

Description

technical field [0001] The invention relates to the technical field of engineering construction. More specifically, it relates to a method for predicting the safety of strata boulders to overlying independent foundations in shield machine construction. Background technique [0002] In the process of urban subway construction, shield machine is widely used because of its advantages of fast construction speed and high safety. However, in the granite weathered residual land area in the southeast coast of my country, the shield machine is used for construction, and the problem of boulders is often encountered. At this time, due to the difference in the properties of residual soil and boulders, and the poor cutting effect of the soil cutting cutter on boulders For other reasons, the boulder is not easily broken, but rotates along the cutter head of the shield machine. Especially when there is a shallow foundation of buildings in the overlying stratum, such as an independent foun...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06F30/20E21D9/06E21D9/08
CPCG06Q10/04G06F30/20E21D9/06E21D9/08
Inventor 徐虎南安桂萍李仁魁杜元杨涛主雪梅周亦涛
Owner 沧州交发工程项目管理有限责任公司
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