研究结果表明，开挖扰动和基质吸力对边坡安全系数有较大的影响。
The result indicates that excavation disturbances and matrix suction could exert an obvious influence on the slope safety…
在风积砂地层修建隧道，由于开挖扰动后围岩完全变为松散体，无自稳能力，故施工难度大。
Tunneling in wind stockpiling fine sand is very difficult, since the sand undermined will become very loose and incapable of self-consolidating.
由于基槽开挖对下卧层残积土的强烈扰动导致强度丧失，造成承台在自重下明显沉降。
The loss of strength due to the strong disturbance of underlaying residual soil by the excavation of foundation trench shall cause obvious settlement of cushion cap with its gravity.
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