煤矿安全2019，Vol.50Issue(7)：100-102,107,4.DOI:10.13347/j.cnki.mkaq.2019.07.023
冻结深立井快速施工关键技术
Key Technologies for Fast Construction of Freezing Deep Vertical Shaft
王明智 1陈弦 1李忠森 1车发明1
作者信息
- 1. 陕西煤业化工建设(集团)有限公司,陕西 西安 710021
- 折叠
摘要
Abstract
Xinzhuang Coal Mine has large water inflow from return air vertical wells, freezing depth of 910 m, deep drilling depth, and large bedrock thickness, and the overall construction is difficult. According to the actual situation of the project, the engineering parameters such as freezing wall thickness are determined based on the height of the excavation section and the relevant experience, and the key technical measures in the course of the construction of pore correction and freezing ring are introduced. The mechanized equipment used in excavation and masonry construction is reasonably selected, and the blasting control technology of frozen bedrock section is briefly described. The practice shows that the safe and rapid construction of Xinzhuang return air shaft can be guaranteed by effective control of key technologies in the process of freezing and excavation.关键词
冻结法/立井/冻结壁厚/快速施工/爆破控制Key words
freezing technique/vertical shaft/frozen wall thickness/rapid construction/blasting control分类
矿业与冶金引用本文复制引用
王明智,陈弦,李忠森,车发明..冻结深立井快速施工关键技术[J].煤矿安全,2019,50(7):100-102,107,4.
