Optimization method for simulating tunnel excavation

• Main Authors: SHEN QIAN, CUI ZIJING, HAO SHIHUA, HAO PEIYU, LI CHENGXIANG, LOU GUOCHONG, WANG YANLU, LIU YUBO
• Format: Patent
• Language: Chinese; English
• Published: 16.12.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention provides an optimization method for simulating tunnel excavation. The method comprises the steps that a rock-soil body component and a lining component are built in sequence, and the lining component is integrally assembled to the corresponding position of the rock-soil body component; according to a preset partial excavation construction method, the rock-soil body component is divided into a plurality of parts of rock-soil bodies; determining the execution sequence of the ground stress analysis step, the support analysis step, the softening analysis step and the removal analysis step; a ground stress analysis step is executed, and ground stress balance is implemented when the whole lining part is invalid; a supporting analysis step is executed, specifically, the lining component is activated as a whole, and lining supporting is implemented; and sequentially executing a softening analysis step and a removal analysis step on each part of the segmented rock-soil body to obtain the tunnel. Repeated