青海热水煤矿多年冻土区列车引起的地面振动检测与模拟

Modeling and Monitoring the Tran-Induced Vibration in Permafrost in Reshui Coal Mining, Qinghai

对热水煤矿铁路多年冻土地段的地面振动情况进行了现场实测,得到了列车经过时多年冻土地表振动加速度的衰减情况,在此基础上对列车运行时所引起振动在冻土区地面振动问题建立了数值分析模型.数值分析得到的结果与现场实测吻合较好,为研究多年冻土振动问题提供了分析方法.

Reshui Coal Mining locates on the southern slope of the Qilian mountain, Qinghai Province, and the ground is a permafrost region. A special railway were built on the region for coal transportion. The propagation properties of vibrations induced by running train in permafrost regions were studied. A field monitoring was carried out and a numerical analytical model of train-track-ground system was established. The experimental and theoretical results are discussed and analyzed in this paper. The study of tran-induced vibration will be help for the Qinghai-Tibetan Railway building.