台阶开挖 meaning in English
bench excavation
Examples
- Applying the technology of smooth blasting , the complete section of the surrounding rock and the half section of the broken and the surrounding rock have been excavated at the obverse step
利用光面爆破技术，类围岩全断面一次开挖，类围岩和断层破碎带半断面正台阶开挖。 - Abstract : this paper gives the fe simulating analysis of the effect on road construction in the process of mine open - cut , analysis and evaluates stability of road foundation during many rock material steps excavation , concludes that the different conditions , for example , the rock caves , steps and the dis tance between the steps and road have influence on the road foundation stability
文摘:针对矿山在地下开采转为露天开采过程中，原地采区域在露天采场台阶开挖过程中对露天采场公路建设及运营的影响，进行了数值模拟分析，并对通过各种岩体介质的露天采场公路路基在台阶开挖和汽车运营过程中的稳定性进行了分析评价，得出了在不同条件下，如空洞地区、台阶材料介质、材料界面、开挖台阶与公路距离等对路基稳定性影响的评价。 - Based on the gathered data , especially displacement data , statistically analyzing and feed back according to various empirical methods , theoretical norm and fem computation are conducted so as to grasp the rules of deformation and stress of ground and structure , assess the stability of ground and structure as well as determine reasonable support time and parameters , ultimately achieve safety without compromised safety
根据获取的量测信息，尤其是位移信息进行统计分析，依照各种经验方法和极限应变准则，以及有限元计算综合进行反馈，把握重叠隧道采用先上后下多台阶开挖工法时围岩和隧道结构的变形和受力规律，确认围岩和隧道结构的稳定性，确定合理的支护时机和支护参数，保证施工安全的基础上追求经济性。