摘要
目前国内地铁车站较少采用拱盖法施工,其施工过程中的地表沉降控制鲜有分析。青岛地铁车站一般埋设在"上软下硬"地层中,拱盖法能较好地适应其地层特点,并节省造价。通过某地铁车站拱盖法施工全过程的数值模拟及沉降监测数据分析对比,得到不同工序影响地表沉降的大小程度,并依据最终控制值提出各工序下地表沉降的分步控制指标。
Arch cover method is rarely used in domestic metro stations presently, and accordingly the control of surface settlement during the whole construction process is seldom analyzed. Qingdao metro stations are commonly constructed in ＂upper soft and lower hard＂ stratum, the arch cover method can better adapt to the characteristics of stratum, and save cost. According to the numerical simulation of one metro station during the whole construction process and the corresponding surface settlement monitoring data, the influence degree of different processes are obtained by the comparative analysis. Based on the total settlement control value, the step control index is put forward for each process in conclusion, which can provide the reference for the similar construction.
出处
《铁道建筑技术》
2014年第4期1-4,共4页
Railway Construction Technology
关键词
地铁车站
拱盖法
地表沉降
分步控制
metro station
arch cover method
surface settlement
step control
