It has guiding significance to distinguish and delimit collape colnmn section. 这对今后正确分辨和圈定陷落柱具有一定指导意义。
Study of mining induced collape 采矿诱发塌陷的研究
Tunnel collape or gushing occurred, not only the delay period is to increase the project cost, but also construction even endanger the safety of technical personnel. 若发生塌方或涌突水,不仅延误工期,增加工程费用,甚至危及施工及技术人员生命安全。
Entropy charge of gravitational collape systems 引力塌缩系统的熵变
In typical peak forest plain, factors, for example, water pollution, water shortage, karst collape, engineering disturbance etc. 典型峰林平原水污染、水短缺、土地质量下降、工程岩土扰动等,是人为负面行为效应的主要体现。
The technique of digging anchor net supporting in karst collape pillar in mining tunnel 回采巷道过陷落柱锚网支护掘进技术