浅谈砂卵石地层人工顶管施工监测技术

Discussion on Monitoring Technology of Artificial Pipe Jacking in Sand and Pebble Formation

论文介绍了成都新都区砂砾石地层人工顶管施工高程、轴线控制技术,以往顶管施工测量控制通常采用激光经纬仪或全站仪进行控制,本工程主要介绍采用激光水准仪吊线法测量控制方法,不仅解决了常规仪器的烦琐操作程序,并且在工作井内操作方便,可以有效消除测量误差,实践中取得了良好效果。

This paper introduces the construction elevation and axis control technology of artificial pipe jacking in sand and gravel strata in Xindu District of Chengdu.In the past,laser theodolite or total station is usually used to control pipe jacking construction measurement.This project mainly introduces the method of measuring and controlling with laser level suspension method,which not only solves the complicated operation procedure of the conventional instrument,but also is convenient to operate in the working well,which can effectively eliminate the measurement error and obtain good results in practice.