摘要
在后施工管道的顶进过程中,通过对已施工管道的纵向与环向钢筋应力以及管道的接触压力、管道接缝纵向变位的现场监测,得到了近距离平行顶管施工对管道内力及变形的影响规律,并分析了顶管施工对相邻管道的扰动机理,提出了减小扰动的工程措施,为今后类似工程的应用提供参考。
The longitudinal and circular reinforcing steel bar stress, pipe - soil contact pressure and the joints' longitudinal displacement of the pre - constructed pipe were monitored during the pipe - jacking construction on the spot. At first,the disturbance mechanism of pipe -jacking upon the neighboring pipe is presented. And then the influence rules of the inner force and displacement are obtained. In the end, some measures on mitigating the disturbance are put forward for giving suggestions to other similar projects.
出处
《地下空间与工程学报》
CSCD
2007年第z2期1421-1425,1437,共6页
Chinese Journal of Underground Space and Engineering
关键词
顶管
近距离
监测
扰动机理
pipe-jacking
close distance
monitoring
disturbance mechanism
