山东新汶业集团华新建工公司在施工汶南矿北风井工程中 ,创出连续 6个月立井成井超过 10 0m和最高月成井 14 6m的国内领先水平。汶南矿北风井设计净直径 6m ,垂深 86 4m。该工程自今年 3月 11日开始掘砌施工 ,从次月至 9月每月成井都超过 10 0m ,预计 10月中旬可竣工。如此快速 Shandong Xinwenye Group Huaxin Construction Company in the construction of Wennan mine north wind wells project, hit a continuous 6-month vertical well into the well over 10 0m and the highest monthly well of 14 6m leading domestic level. Wennan mine north wind shaft design diameter 6m, vertical depth 86 4m. The project started excavation work on March 11 this year. From next month to September every month, the wells have exceeded 10 0 m and are expected to be completed in mid-October. So fast