超欠挖 的英文怎麼說
中文拼音 [chāoqiànwā]
超欠挖
英文
back break-
Abstract : the application of smoothwall blasting in crushed surrounding rock of no. 2 tunnel with crushed surrounding rock has obtained more satisfactory results through selecting rational blasting parameters, adopting right supporting method and controlling the overbreak or underbreak of the tunnel effectively, etc
文摘:在周家山2號隧道破碎圍巖施工中，應用光面爆破技術，通過選擇合理的爆破參數，正確的支護施工方法，有效地控制隧道的超欠挖，加快掘進速度，取得了較理想的效果。The application of smoothwall blasting in crushed surrounding rock of no. 2 tunnel with crushed surrounding rock has obtained more satisfactory results through selecting rational blasting parameters, adopting right supporting method and controlling the overbreak or underbreak of the tunnel effectively, etc
在周家山2號隧道破碎圍巖施工中，應用光面爆破技術，通過選擇合理的爆破參數，正確的支護施工方法，有效地控制隧道的超欠挖，加快掘進速度，取得了較理想的效果。New technique of control digging shaft
控制井筒過量超挖欠挖的新工藝On the basis of the practice on work of extra - insufficient control and the subsidence of vault and the earth ' s surface, cases of engineering surveying techniques applied in the construction supervision in tunnels are discussed
摘要通過超欠挖控制、拱頂下沉、地表下沉的工程實踐，討論在隧道施工監控量測中工程測量技術的應用情況。Abstract : in order to provide the reasonable parameters in the reliability analysis of tunnel structure and the criterion in the quality control of tunnel engineering, in this paper, the over - under - excavated values of the real - state outline of tunnel excavation are obtained by the near - field photographic method. by using mathematical statistic method, the figure features and probability distributions of the over - under - excavated values of the surrounding rock, including deferent positions of same cross section, are analyzed
文摘:採用近景攝影的方法，從隧道開挖毛洞中獲取圍巖超欠挖數據，通過數理統計的方法，分析各類圍巖超欠挖的數字特徵及概率分佈，同時得出各類圍巖超欠挖在隧道斷面不同部位的分佈規律，為隧道結構的可靠度研究提供可靠參數，也為隧道工程質量控制提供基準分享友人