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在下花园煤矿宣东二矿主井工程施工过程中， 实行项目法管理， 取得了宣东二矿主井井筒冻结段月均成井６６ ．９ ｍ 、基岩段月均成井１０８ ．９ ｍ 、全井筒月均成井１０３ ．６ ｍ 的好成绩， 尤其是１９９７ 年９ ～１２ 月分别创基岩段月成井９６ ．０ ｍ 、１４１ ．０ ｍ 、１３３ ．１ ｍ 、１１０ ．０ ｍ ，４ 个月平均月成井１２０ ．０ ｍ ， 两次打破中国煤炭建设总公司第一建设公司立井基岩段月成井１１７ ．８ ｍ 的记录， 工程质量优良．
In the construction of the main shaft of Xiaodongyuan Coal Mine Xuan Dong No.2 Mine, project law was implemented and the average monthly well completion of the main well shaft of Xuan Dong No.2 Mine was completed. 9 m, the bedrock average monthly wells 108. 9 m, full well average monthly well 103. Good results of 6 m, especially from September to December 1997, respectively, hit the basement rock formations month 96 wells. 0 m, 141. 0 m, 133. 1 m, 110. 0 m, 4 months average monthly well 120. 0 m, twice to break the first construction company of China Coal Construction Corporation vertical well shaft Seiyama 117. 8 m record, the project of good quality.