若代表土中某点应力状态的摩尔应力圆与抗剪强度包线相切,则表明土中该点( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
已知土中某点的总应力σ=100kPa,孔隙水压力μ=-20kPa,则有应力σz等于()
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