信息化监测在市政工程基坑开挖过程中的应用

Application of IT-monitoring in excavation of municipal engineering

常州市市政工程管理处设施管理用房拟建场地狭小,大部分土质差,挖深较深,需对该基坑进行开挖施工监测工作。利用测斜仪对基坑开挖过程中的土体深层水平位移进行监测,结果表明:①常州市市政工程管理处设施管理用房基坑开挖施工流程相对比较规范,基坑开挖至基坑回填期间,实测土体深层水平位移量较小,在整个施工过程中表现出较好的稳定性;②首次在常州地区利用测斜仪进行土体深层水平位移监测,监测数据有利地指导了基坑开挖,极大地提高了该地区基坑开挖信息化监测的水平和精度。

The construction site of facility management building of Changzhou Municipal Engineering Administration Department is narrow,the mechanical property of soil is poor,and the depth of excavation is deep,hence,it is necessary to monitor the deformation for its foundation during the excavation.The horizontal displacement in depth is monitored by the inclinometer during its excavation.From the results,it is shown that:(1) the construction process is standard in the excavation of facility management building.From the beginning to the end of excavation,the values of horizontal displacement in depth are in the range of allowable values,and the foundation is stable during the whole excavation.(2) It is the first time that the inclinometer is used to monitor the deep horizontal displacement in Changzhou.It is helpful to guide the excavation and raises the IT-monitoring level and the accuracy during the excavation in this region.