The strata movement and the ground surface subsidence caused by underground mining are serious underground engineering problems. 地下開(kāi)采引起的巖層移動(dòng)和地表沉陷是一個(gè)非常嚴重的地下工程問(wèn)題。
In deep excavation engineering, the assistant retaining struts are usually designed to reduce the diaphragm displacement and ground settlement in soft clay. 摘要為降低于軟弱黏土層開(kāi)挖可能引起擋土壁及地表沉陷過(guò)大之問(wèn)題，常搭配輔助性之擋土措施。
