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地下岔洞开挖的三维弹塑性有限元分析
引用本文:郭海庆,邓昌铁,周澄. 地下岔洞开挖的三维弹塑性有限元分析[J]. 水电能源科学, 2000, 18(4): 25-27
作者姓名:郭海庆  邓昌铁  周澄
作者单位:河海大学,水利水电工程学院,江苏,南京,210098
摘    要:
应用弹塑性有限元法对初始地应力场、洞室开挖等效应对地下岔管围岩的应力、位移和稳定的影响进行了数值模拟分析;并结合实际工程,给出了开挖后围岩应力和位移的分布及围岩的塑性屈服范围。

关 键 词:地下岔管 围岩 开挖 三维弹塑性有限元
修稿时间:2000-05-08

Study on the Excavation of Underground-Bifurcated Tunnels by 3-D Elasto-Plastic FEM
GUO Hai-qing,DENG Chang-tie,ZHOU Cheng. Study on the Excavation of Underground-Bifurcated Tunnels by 3-D Elasto-Plastic FEM[J]. International Journal Hydroelectric Energy, 2000, 18(4): 25-27
Authors:GUO Hai-qing  DENG Chang-tie  ZHOU Cheng
Abstract:
By use of three dimensional elasto plastic FEM, the thesis simulates and analyzes the influences of initial geotectonic stress field and tunnel excavation on the mechanical behavior of the rock mass around bifurcated tunnels. As an example, the stress, displacement, and yielding area distributions of the adjoined rock around the underground bifurcated tunnel in Wanjiazhai Yellow river water diversion project are presented.
Keywords:underground bifurcated tunnel  adjoined rock  initial geotectonic stress field  tunnel excavation effect  3 D elasto plastic d
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