摘要
为确保城市地面建筑的安全和正常使用,因此对隧道施工所产生的地表位移的预测极为重要。随机介质理论利用线性叠加的方法,在不考虑工况之间相互耦合作用的前提下,能够处理相应的地表响应,包括隧道的掘进、降水等施工措施所产生的地表响应。为了适应不规则的地层损失,作者引入了将不规则地层损失进行等参变换的方法,更好的适应了实际工程需要。在此基础上,对井点降水施工引起的地表位移利用随机介质理论进行详细的分析,结果表明与现场实测的数据吻合良好。
For the safety and normal usage of the city ground building, therefore it is extremely important to estimate the earth surface movement and displacement caused by tunnel construction. Without consideration of the coupling reaction of working performance with each other, the random material theory gives fine outcomes by means of linear superimposition method. Taking irregular soil element volumetric loss in practical engineering into consideration, the authors introduce the adaptable method by isoparametric transforming the arbitrary form of soil loss, which enlarges the application field of the random material theory. For the ground sudace displacement by the construction with pumping groundwater in well, the study result shows that with the random material theory a fine result coincides with the data measured at spot can be obtained.
出处
《地下空间与工程学报》
CSCD
2006年第4期610-614,共5页
Chinese Journal of Underground Space and Engineering
关键词
隧道
随机介质理论
地层损失
等参单元
井点降水
tunnel
random material theory
soil loss
isoparametric element
pumping groundwater in wells
