Trimble S9/S9 HP全站仪在铁路顶管施工路基面的精密沉降监测中的应用

顶管施工作为非开挖的一种施工方式，由于节省资源被广为使用。但由于顶管施工会造成管道周围的土体变形，从而使土体产生移动，地面发生沉降，因此，一种有效、准确的沉降监测方式是必不可少的。本文根据顶管施工的一般规律，利用高精度的Trimble S9/S9 HP全站仪和圧差式静力水准仪进行沉降监测的方案布设，从实际的观测结果来看，此种方案能够有效准确地反映沉降情况，在实践生产中具有较大意义，可以推广使用。

Application of Trimble S9/S9 HP total station in precision settlement monitoring of railway pipe jacking construction subgrade

As a non-excavation construction method, pipe jacking is widely used because of saving resources. However, pipe jacking construction will also cause soil deformation around the pipe, which will cause the soil to move and cause ground settlement. Therefore, an effective and accurate settlement monitoring method is indispensable. According to the general rule of pipe jacking construction, the high-precision Trimble S9/S9 HP total station and the differential presure static level are used to set up the monitoring plan for the settlement in this paper. According to the observation results, this kind of scheme can effectively and accurately reflect the settlement situation, which has great significance in practical production and can be promoted and used.