Application of GPS RTK and Total Station in pipeline engineering survey——A case study of West-East Gas Pipeline second-line in wenmi,turpan

Take conventional instruments to survey all of the pipeline project has many problems,such as complex operation,low efficiency,poor accuracy and high cost of measurement.For improve the accuracy and efficiency of survey in the West-East Gas Pipe- line project second-line,We use the Total Station and RTK together,in the place,where RTK has difficult to survey accurately,we use Total Station instead.In this way,we finish all of the field work in a very short time,and ensure the accuracy meet the require- ment.The results demonstrates that the joint operations method played a complementary role,and could achieve good results.