摘要
依托鲅鱼圈输水管工程,分析了浅地表城区顶管法施工对地表的影响以及管道受力情况。首先通过理论公式计算顶管法施工顶力合理值,并采用ANSYS数值软件模拟顶管法施工对地表的影响,得出结论:顶推过程中沿顶管纵向6 m即4D范围为变形发育区,从起始顶进断面算起顶推5 m范围内变形速率最大,因此建议在此范围段内进行重点监测。
Relying on the Bayuquan water-conveyance pipeline engineering, the effects on the surface deformation and jacking force in subsurface pipe-jacking construction are analyzed here. Firstly, the reasonable jacking force value is calculated by theoretical formula. Then, the numerical software ANSYS is used to simulate the pipe-jacking construction＇ s impact on surface. At last, the conclusion is obtained that the range of 4D or 6 m along the longitudinal pipeline is deformation developing area. The range counting from the start jacking section within 5 m has maximum deformation rate. Therefore, it is recommended to make focused rnointoring in this range segment.
出处
《水利与建筑工程学报》
2013年第5期89-91,101,共4页
Journal of Water Resources and Architectural Engineering
基金
教育部基本科研业务费项目(N120101001)
辽宁省自然科学基金项目(20092011)
中央高校基本科研业务专项资金(N090401008
N090101001)
高等学校博士点科研基金(200801450003)
国家重点实验室开放课题(SKLGP2011K025)
辽宁省教育厅创新团队支撑项目
关键词
输水管线
顶管法
顶力计算
地表变形
管道受力
water pipeline
pipe-jacking method
jacking force calculation
surface deformation
pipe stress
