The Problem and Strategy on Subsidence Assessment of Construction Projects under Ballastless Track in Chinese High-Speed Railway

Abstract

The subsidence assessment of construction projects under track is very important for laying ballastless track for high-speed railway. The method how to obtain the measurement of the subsidence is introduced in details. And then, the discussion on the usability and scientificity of the relevant subsidence assessment method is carried on. The problem and weakness about the assessment is analyzed and demonstrated. According to the analysis and demonstration, the improved assessment is put forward here. Also, the effective and simple method to obtain the subsidence measurement is suggested. The reliability and accuracy of the measurement and the assessment is emphasised. At last, the assessment results are demonstrated in order to explain the improvement, basing on the examples of subsidence assessment about Chinese high-speed railway in ballastless track.