摘要
利用赤平投影法和实体比例几何法分析隧洞围岩稳定性,根据隧洞沿线所遇结构面相互组合形式,预测隧洞围岩不稳定楔形体的位置及其发育深度,从而估算不稳定楔形岩块的体积和重量,为设计相应的支护措施提供可靠的地质依据.
In the light of all kinds of structural faces and their assembles along tunnel, the place and growth depth of instable cuneiform body in tunnel wall rock could be predicted ,then its volume and weight of instable cuneiform body are estimated based on the equator plane projecting method and the solid body ratio geometry method, which offers reliable geologic data for designing corresponding supporting measure.
出处
《华北水利水电学院学报》
2007年第3期81-84,共4页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
临空面
变形破坏机制
赤平投影
楔形体
楔形体顶点轨迹
抛物线
faces confronting with space
deformation damaging mechanism
equator plane projecting
cuneiform body
cuneiform body peak track
parabola
