土体性质对搅拌桩监测的影响分析

以应力波法检测搅拌桩为研究背景,分析土体性质对检测结果的影响,利用数值软件Ansys/Ls-dyna分别计算了不同的夹土性质、不同桩周土性质对检测结果的影响,计算结果表明,当夹土层强度较低时检测波形紊乱,无法识别缺陷和桩底,当桩周土性质改变时,应力波的传播速度也将改变,对检测结果的判断造成影响,为搅拌桩的实际检测提供理论依据。

The Impact of Surface Gradient on Stability of Goaf Urrounding Rock

A cutting slope was taken as an example, and a numerical model was established to calculate the stability of the slop under excavation process. The calculation results show that the weak intercalation of a slope affects slope stability terribly, there is large level displacement in the mezzanine, and the mezzanine is a potential slip surface. There was greater uplift in the pit bottom under excavation. In order to avoid cracking phenomenon of road construction, attention should be also improved.