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Based on the disturbing effect mechanism of shield construction on surrounding soil and buildings, the construction process of shield tunnel down-crossing nearby existing tunnel is simulated with the FLAC-3D numerical simulation software, taking the engineering situation of a shield section tunnel in Beijing Subway as research objects. The disturbing effect on existing tunnel caused by shield tunnel...
This article according to the overburden rock structural features and the geological conditions of HaoDa coal mine, based on the scene investigation and study and the ore presses the monitor, after the numerical simulation of mining face and roadway, surrounding rock stress and deformation were analyzed during mining, According to the data of the ore presses the monitor, mastering the mine pressure...
The article took Chang Gou yu coal mine for example. Based on the scene investigation and the ore presses monitor, According to the geological conditions of Chang Gou yu coal mine,we made the numerical simulation of mining face. After analyzed the abutment pressure and it's coverage of the first caving, the old roof first weighting and the old roof periodic weighting, Combined with the mine pressure...
Relying on the background of large section soil tunnel engineering, the numerical simulation on three excavation methods for soil tunnel including bench method, arch heading method and cross diaphragm were carried out. Results show that the arch heading method is confirmed as optimum for this project by comparative analysis. And then, according to the monitoring results of the arch heading method,...
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