深孔爆破与水力压裂技术初次放顶效果对比分析  

Comparative Analysis of First Time Top Coal Caving Effect between Deep Hole Blasting and Hydraulic Fracturing Technology

作　　者：陈学慧 CHEN Xuehui(CCTEG Coal Mining Research Institute Co.,Ltd.,Beijing 100013,China;CCTEG(Xi′an)Mining Engineering Technology Co.,Ltd.,Xi′an 710000,China)

机构地区：[1]中煤科工开采研究院有限公司,北京100013 [2]中煤科工(西安)开采工程技术有限公司,西安710000

出　　处：《煤炭技术》2025年第2期41-44,共4页Coal Technology

摘　　要：陕西某矿在同一盘区东西两翼首采工作面分别采用深孔爆破与水力压裂技术进行了初次放顶,采用支架压力监测数据对初次来压步距进行了分析,根据初次来压步距,对2种不同初次放顶技术在地质条件近似的条件下的效果进行对比分析。在采高、顶板处理高度和地质条件相似的情况下,从初次来压步距可以得出水力压裂效果较好于深孔爆破初次放顶效果。A certain mine in Shaanxi province used deep hole blasting and hydraulic fracturing techniques for the first mining face on the east and west wings of the same area.The initial pressure step distance was analyzed using support pressure monitoring data.Based on the initial pressure step distance,the effects of two different initial roof caving techniques were compared and analyzed under similar geological conditions.When the mining height,roof treatment height,and geological conditions are similar,it can be concluded from the initial pressure step that the hydraulic fracturing effect is better than the initial caving effect of deep hole blasting.

关 键 词：深孔爆破 水力压裂 初次放顶 冲击地压 

分 类 号：TD327[矿业工程—矿井建设] TD324