When the bore hole-top-enclosed grouting method is used to conduct high-pressure curtain grouting, shallow weathered broken rock is easy to be split, resulting in excessive grout loss.
采用孔口封闭灌浆法进行高压帷幕灌浆时，对于浅层风化破碎岩体易产生多次劈裂而流失过多浆液造成浪费。
So a split-type shear box is adopted to conduct the in-situ shear test in order to make the stress on the shear plane uniform and ensure the shear stress to running through the center o.
我们改进后采用分体式剪切盒进行原位土体试验，使剪切面上的应力分布均匀，保证剪力通过剪切缝中心，同时在试验过程中法向及剪向加载时试体稳定性得到了很好的改善。
So a split-type shear box is adopted to conduct the in-situ shear test in order to make the stress on the shear plane uniform and ensure the shear stress to running through the center o.
我们改进后采用分体式剪切盒进行原位土体试验，使剪切面上的应力分布均匀，保证剪力通过剪切缝中心，同时在试验过程中法向及剪向加载时试体稳定性得到了很好的改善。
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