borehole excavation effect 井眼挖掘效应
engineering-excavation effect 工程开挖效应
excavation unloading effect 开挖卸荷效应
excavation face space effect 开挖面空间效应
effect of excavation 开挖效应
The test reveals the excavation effect, time effect, three-dimensional effect and rainfall lagging effect of the prestressed anchor rope composite soil nailing.
试验结果表明预应力锚索复合土钉支护结构具有开挖效应、时间效应、空间效应、降雨滞后效应；
The low density drilling fluid has borehole excavation effect on compensated neutron porosity logging, and by this way apparent porosity is lower than the true value.
低密度井眼流体会对补偿中子孔隙度测井产生井眼挖掘效应，使视孔隙度值低于真孔隙度，且井眼流体密度越小，井眼尺寸越大，地层孔隙度越大，井眼挖掘效应越明显。
Based on the above work a space-time effect on the excavation face of tunnel with the function of bolting support is considered, thus the engineering application of BEM is developed.
在此基础上，本文首次采用弹-粘塑性边界元法并结合锚喷支护考虑了隧洞掘进面时空效应作用问题，从而拓展了边界单元法的工程应用。
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