山西岩溶陷落柱的岩体力学背景

The background of rocks mechanics of karst collapse column in Shanxi

根据对山西岩溶陷落柱岩体致塌结构及岩层控制的调查研究，指出构造节理及沿中奥陶统石膏带的滑移－拉裂对岩溶发育及陷落柱的形成起重要作用，并认为山西岩溶陷落柱的形成与裂谷地貌水动力条件及岩体侧向卸荷有关．

According to investigation for rockmass collapsing structure and strata controlling of the karst collapse column in Shanxi, it is proposed that the most important for karst growing up and columns collapsing is the tectonic joints and sliding fracture along gypsum zone in mid Ordovician series. Moreover, the formation of the collapse column in Shanxi results from water dynamic condition in rift geomorphic process and rockmasss lateral unburdening.