In the construction process of weak surrounding rock tunnel,reasonable determination of tunnel excavation construction technology and investment is one of the key issues that railway builders need to pay attention to.In this paper,the relevant construction sites of Lixin Tunnel and Yueyatian Tunnel of Yumo Railway are selected for on-site investigation and data statistics.The realistic statistical method and on-site measurement method are used to analyze the scheme and requirements of the construction method,collect and measure the composition and cost of the on-site materials and machines,and compare and analyze the data under normal construction conditions.The three-step reserved core soil zone inverted arch excavation method quota is proposed.It provides technical support for the revision and supplement of the next stage cost standards of railway related departments,the improvement of the budget quota system of tunnel engineering,and the promotion of the healthy development of China's railway investment control.
维普
万方数据