空巷顶板稳定性原理及支护技术研究

通过对工作面前方空巷围岩活动规律分析，建立了空巷顶板稳定性的力学模型，应用该力学模型，研究空巷基本顶的稳定性.采用高水速凝材料充填空巷新技术，同时加固空巷两帮破裂煤体，保持空巷围岩稳定.通过理论分析、数值模拟研究空巷顶板稳定性与高水速凝材料固结体力学特性的关系，合理确定了高水速凝材料充填参数.该研究结果已成功应用于工程实践.     

Foliation of Rock Mass around Mine Workings in Mining Rockburst-Hazardous Deposits

The results are presented for the experimental laboratory investigations into deformation of rock samples and the in situ instrumental observations of failure of massif around mine workings. The calculation of stress state in the vicinity of mine workings under dynamic actions is conducted. The mechanism of oriented rock foliation is revealed.     

采准巷道支护分级的探讨

在矿岩工程质量分级的基础上，综合考虑采准巷道使用的时间，巷道暴露面积以及巷道影响程度来对巷道进行支护分级，并提出了巷道支护分级的方法，通过对不同支护级别的巷道因地制宜地采用不同的支护方式。可降低支护成本，该方法在程潮铁矿采准巷道支护中得到了应用，结果表明，采用支护分级方法来保证支护质量，降低支护成本是有意义的。     

南屯煤矿深部松软煤层巷道支护技术研究

南屯煤矿深部松软煤层巷道，在掘进过程中顶板破碎，伴有大量顶煤冒落且围岩破坏严重。论文主要针对不同支护条件和巷道围岩破坏状况进行数值模拟分析，结合实际情况制定了深部软岩巷道的支护方案。现场监测表明，巷道围岩得到了有效控制。     

超高水材料充填空巷研究与工业性试验

长期以来,工作面过空巷是煤矿开采中难以解决的问题.传统的空巷支护方式不能有效地对顶板和煤壁提供足够的阻力或阻止围岩破坏范围的扩大.本文在分析工作面空巷围岩活动规律和超高水材料性能的基础上,论证了超高水材料充填空巷的可行性,并确定了充填体的力学参数和充填工艺.现场试验证明,采用超高水材料充填空巷是一种安全、经济、高效的方法,较传统空巷支护方法具有较大的优势.     

金川构造应力场对巷道工程稳定性的影响

在研究金川矿区断层产状要素与构造应力场分布规律之间关系的基础上，定义了表征矿岩和围岩中2组优势节理面剪切滑移危险程度的破坏因子，分析了矿区沿脉方向上，由主应力方向变动引起的矿体上盘围岩中2组优势节理面上破坏因子的变化过程。计算结果给出，在矿区东部，F₁产状节理面是巷道稳定的主控因素，而在矿区西部，F₁₇产状节理面有可能成为巷道稳定的主控因素。理论分析与沿脉巷道变形破坏的现场监测结果相一致。     

获各琦铜矿井巷深部支护实践

深地层、高地压井巷工程的支护形式应选择主动支护形式。根据围岩稳定情况、涌水量、断面形状和大小,服务年限和用途等因素选择合理的支护方式,以达到降低井巷工程掘进、支护、维护费用,提高矿山经济效益的目的。通过对获各琦铜矿深部井巷支护方法的讨论,实现井巷支护方法的优化,并为同类型矿山提高井巷支护效率提供参考。     

深埋矿床井巷岩爆特性分析

根据冬瓜山井巷掘进期间记录到的岩爆资料, 总结了该矿井巷的岩爆特征和发生条件。对该矿床几种主要的岩石进行了强度试验、峰值强度前的加卸载试验、全应力应变试验和峰值强度后的松弛试验, 指出该矿床矿岩除大理岩外, 其他岩石都具有不同程度的岩爆倾向性, 提出了岩爆具有本源性和诱导性两种属性的观点。     

Rock mass movements around development workings in various density of standing-and-roof-bolting support

Presented measurement results of roof rocks and wall rock movements of underground development workings after their drifting. The research was carried out in the coal mine workings with standing-and-roof bolting support. There were various density of the support, so the aim of the special monitoring programme was to determine movement intensity of rock mass in the premises of the heading area. There were four types of research did by the authors. They measured convergence, roof layers separation using telltales and sonic probes and load bearing of the headings’ roofs by hydraulic dynamometers. Evaluation of fracture zone around the heading and investigation the load zone caused by failed roof rocks may become a basement for the determination of support parameters of the workings. The combined system of standing support and roof bolting seems to be an essential for underground headings protection. Supported by the Ministry of Science and Higher Education Nr of Projects (4T12A00229)     

程潮铁矿采准巷道围岩稳定性数值模拟研究

松软破碎围岩的巷道支护一直是困扰地下金属矿山生产的重大技术难题。结合程潮铁矿东区的具体工程地质条件和采场布置参数，采用FLAC软件对无断层破碎带无支护、有断层破碎带未支护和有断层破碎带喷锚网支护3种情况进行模拟研究。并从应力、位移和塑性区3方面分析巷道围岩的稳定性。模拟计算表明，现场所采用的支护方案是正确的。     

Seam-Rock Contact Stresses Induced by Mine Working

When simulating rock deformation, a priori conditions are discussed. The method is proposed for calculating the stress state around the workings. The stresses and displacements on the seam-enclosing rock contact were found in quadratures.     

夜场坪巷道支护分级试验研究

针对矿岩软破、稳定性差异较大情况,综合考虑矿岩性质、应力环境、巷道使用功能、巷道服务年限4个主要影响巷道支护形式的因素,运用多指标综合分类法对巷道进行支护分级,并制定相应的支护方案。该分级方法在夜场坪钼矿巷道支护中得到应用,结果表明巷道支护分级能快速确定各采场工程体所需要的相应支护方案,并能保证支护质量和最大限度的降低支护成本。     

Deformational criteria for the stability of roof rocks and rock bolts

The authors discuss issues of stage-wise rock bolting of mine workings. Using equivalent material models, permissible roof rock lamination for roof bolting in conformity with the excavation support standards is evaluated. The critical displacements of roof rocks that make stage-wise roof bolting impossible are calculated.     

Heat Exchange of Rock and Filling Masses in Kimberlite Mining

Heat interaction between rock and solidifying filling masses is considered in underground kimberlite mining in kriolite zone. The mathematical model is developed for the heat exchange process with allowance for the moisture phase transfer. The influence exerted by cement consumption and geometrical dimensions of mine workings on the intensity of rock mass thawing around them are investigated.     

钱家营矿区上行开采经济效益分析

利用上行式开采的方法,提高矿井资源回采率,可缓解矿井因储量少而影响经济效益,同时采用上行式开采还有利于改善采场的稳定性及减轻或避免深部硬岩开采诱发的岩爆灾害。     

Prediction of Rockburst and Sudden Outburst Hazard on the Basis of Estimate of Rock-Mass Energy

A method is developed for estimating the outburst and rock burst hazard of coal seams and faces of mine workings on the basis of determination of rock-mass energy. It is approved in a number of mines located in the Kuznetsk Basin.     

地下工程开挖强至极强岩爆段防治技术

以锦屏辅助洞施工为实例,探讨了地下工程开挖强至极强岩爆段的防治技术,可供类似工程施工借鉴。     

Physical Foundations of Mechanism of Zonal Rock Failure in the Vicinity of Mine Working

Using the statements of non-equilibrium thermodynamics, the physical foundations of zonal rock failure in the vicinity of mine workings are revealed. The evolution of rock failure, from the elastic state after driving a working to the developed zonal structure, is described. The relations obtained are illustrated by a computational experiment.     

巷道围岩松动圈测试技术与应用

围岩中由于井巷掘进造成应力重新分布而产生松动圈，掌握松动圈的范围可以避免支护的盲目性。文中阐述了利用超声波测试技术探测巷道围岩松动圈的工作原理与方法。     

Phenomenological Model of Rock Deformation around Mine Workings

A new mechanism of rock deformation around underground mine workings is presented. The method is developed for calculating geomechanical state of rock mass; this method takes into account rock weight, the action of which coincides with the directions of tensile stresses on the mine working contour, while these directions differ in the floor. The proposed calculation method for rock deformation includes two additional parameters characterizing the ratio of mine working roof displacements to the floor displacements and the ratio of day surface displacements to roof displacements which are determined experimentally.