岩巷定向断裂控制爆破原理及工程实践

介绍了岩巷定向断裂控制爆破的技术与施工原理 ,结合试验说明了定向断裂爆破技术的爆破工艺参数的确定方法 ,并针对方法的工程效果与经济效益进行对比分析。

综掘机在半煤岩巷中快速施工技术的应用与探讨

煤炭是我国西北地区的主要能源之一。随着煤矿采掘技术的不断提高,煤炭的开采量和需求量也在不断增加。因此,传统采掘施工方法已经无法满足现代化矿井综采的技术实施需求。在此背景下,应大力推广和实施综掘机机械化快速配套掘进施工技术。本文主要针对煤矿半煤岩巷工程中的综掘机快速施工技术相关内容进行研究。首先阐述了综掘机的施工技术原理,在此基础上,重点针对我国西北地区煤矿半煤岩巷工程中综掘机快速施工技术安全实施方法进行探讨,以此提高施工技术,为采矿企业创造更高的经济效益。

袁庄矿Ⅳ_1采区巷道布置的优化

从经济技术合理角度出发 ,进行 1采区巷道布置的优化 ,减少岩巷工程量 。

郭矿公司提前60天完成全年开拓进尺任务

今年以来，冀中能源邯矿集团郭矿公司采取有力措施，积极抢抓施工进度。

The principle of stability control of surrounding rock-bearing structures in high stress soft rock roadways

Through the description of the deformational features of the surrounding rockaround high stress engineering soft rock roadways,the coupling stabilization principle ofinner and outer structures in surrounding rock was put forward.The supporting principlesof high stress engineering soft rock roadway (high resistance and yielding support,timelysupport,high strength and high stiffness supports) were proposed,which were applied inengineering practices,and obtained better achievements.

Optimization of construction scheme and supporting technology for HJS soft rock tunnel

For a soft rock tunnel under high stress in jointed and swell soft rock （HJS）, two construction schemes pilot-tunneling enlarging excavation and step-by-step excavation were optimized using FLAC20, and the deformation effects of the two construction schemes were verified by field tests. Based on engineer- ing geological investigation and mechanical analysis of large deformations, the complex deformation mechanisms of stress expansion and structural deformation of the soft rock tunnel were confirmed, and support countermeasures from the complex deformation mechanism converted to a single type were proposed, and the support parameters were optimized by field tests. These technologies were proved by engineering practice, which produced significant technical and economic benefits.

Investigation into the deformation of a large span roadway in soft seams and its support technology

We investigated the deformation failure mechanism of surrounding rock from the aspect of engineering support for a roadway in seams with soft roofs and soft floors and observed the large displacement of the roadway in these soft seams.The result shows that the deformation area is quite large,and settlement of the roof is evident and displacement of the side walls is also obvious.We considered rock bolt-cable coupling for roadway support in seams with soft roofs and floors,in which the cable should be fixed at key positions.As well,we designed an optimal scheme to support a roadway in soft seams of the Shizuishan Second Mine in Ningxia,China.Field monitoring results show that bolt-cable coupling support has achieved the aims of roadway stability control and minimizes deformation.

岩巷掘进质量临时支护工艺优化

在岩巷工程进行的过程中,临时支护工艺的掘进质量对工程整体质量有着极为严重的影响。因此,加强临时支护工艺的研究,对提升岩巷工程的安全性和稳定性有着促进作用。本文主要对临时支护工艺进行研究,并提出有效落实的策略,希望对今后岩巷工程的发展和边坡工艺的应用提供参考价值,更好地促进我国建筑工程的进步和发展。