岩土力学2012，Vol.33Issue(6)：1735-1741,1753,8.
双圆盾构施工引起邻近地下管线附加荷载的分析
Analysis of additional load on adjacent underground pipeline induced by double-o-tube shield tunneling
摘要
Abstract
Based on the modification of Sun's solution, additional load formulas caused by bulkhead additive thrust and force of friction between shield and soil in double-o-tube (DOT) shield tunneling are put forward by elastic Mindlin solution. Assumed soil is Winkler model, additional load in vertical direction caused by soil loss is deduced by using random medium theory. A calculation formula additional load caused by DOT shield tunnel construction vertical crossed adjacent underground pipeline is deduced. The results show that during the pass of DOT shield machine, additional load caused by the friction force between shield and soil plays a leading role; additional load on adjacent underground pipeline induced by bulkhead additive thrust is very small which can be negligible; additional load in z direction is mainly caused by soil loss, and the maximum value generally appears above the axis; when pipeline buried depth is near tunnel, the maximum additional load in z direction appears near to center of each single round.关键词
双圆盾构/地下管线/附加荷载/土体损失Key words
double-o-tube shield tunneling/ underground pipelines/ additional load/ soil loss分类
交通工程引用本文复制引用
魏纲,洪杰,魏新江..双圆盾构施工引起邻近地下管线附加荷载的分析[J].岩土力学,2012,33(6):1735-1741,1753,8.基金项目
国家自然科学基金资助(No.51078332) （No.51078332）
浙江省自然科学基金资助项目(No.Z1100016):浙江省教育厅项目资助(No.Y201122550). （No.Z1100016）
