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本文结合近年来国内外学者对边坡研究的资料以及现场试验和观测研究成果,结合梅山的具体工程认为:岩坡受长期流变剪滑,并在τ=1.96×10~5N/m~2左右的剪应力作用下即可触发滑动,这是在试验资料的基础上,从剪切变形分析入手所作的判断。 帷幕的质量不高只是其中辅导的因素,因帷幕失效(或者局部)首先反映在坝基的漏水上,实际上失稳前并未观测到这一异常。
This paper combines the data of slope research and the results of field tests and observations made by scholars at home and abroad in recent years, and combines with Meishan’s specific project that rock slopes are subject to long-term rheological shear-slip and are at τ=1.96×10~5N/m~2. The right and left shear stress can trigger the sliding, which is based on the test data, starting from the shear deformation analysis to make the judgment. The quality of the curtain is only a factor in the counseling because the curtain failure (or locality) is first reflected in the leakage of the dam foundation. This anomaly was not observed before the instability.