1)rib spalling煤壁片帮
1.Mechanism of the rib spalling and the controlling in the very soft coal seam;极软厚煤层煤壁片帮与防治机理
2.Prevention rib spalling mechanics of stepped cutting technology was analyzed by numerical simulation.研究表明:台阶式割煤工艺改善了煤壁区域的应力状态,减少了工作面煤壁片帮和端面冒顶的发生不同台阶高度比割煤所引起的围岩破坏程度不同,上下台阶高度比为1∶2时煤壁塑性破坏区最小;极软厚煤层大采高开采煤壁片帮主要以剪切滑移引起的三角斜面片帮为主,超高开采是端面顶板冒落的主因。
3.The rib spalling is one of the main factors restricting the safe and high efficient mining of fully-mechanized caving with great minng height.片帮问题是制约大采高综采面安全高效开采的主要因素之一,为了弄清大采高工作面煤壁片帮特征,采用压杆理论分析完整性较好的煤壁的挠度特征,得到了煤壁容易发生片帮的位置在煤壁的中上部,并与现场实测结果对比分析,得到了大采高综采面两种典型的片帮形式:半煤壁片帮和整个煤壁片帮。
英文短句/例句
1.A Study of the Rib Fall Mechanism in Soft Coal and Its Control at a Fully-Mechanized Top-Coal Caving Face软煤综放面煤壁片帮机理及防治研究
2.Mechanism and control technique of the rib spalling in fully mechanized mining face with great mining height大采高综采煤壁片帮冒顶机理与控制技术
3.Study on Technology of Soft Coal Seam Rib Spalling Preventing by Water Infusion with Shallow Holes松软煤层煤壁浅孔注水防片帮技术研究
4.Spalling Control Technology and Practices in Fully Mechanized Longwall Mining Face in Deep Inclined Soft Seam大倾角软煤层综采工作面防片帮技术
5.shortwall undercutter短壁工作面用截煤机
6.Technology of coal seam Short-wall water injection to realize dustproof开展煤层短壁注水 实现煤层综合防尘
7.He sat down before the fireplace to eat his gruel.坐到壁炉前吃麦片粥。
8.A shell splinter embedded itself in the wall.一块弹片嵌进墙壁里。
9.A thin sheet of copper is an example of a diathermic wall.薄铜片就是一个“透热壁。”
10.The pills can help to relieve you from pain.这药片会帮你减轻病痛。
11.I helped you in all sincerity.我是一片诚心帮助你。
12.Study on methane emission law from the coal wall of driving gateway in Adaohai coal mine阿刀亥煤矿掘进巷道煤壁瓦斯涌出规律的研究
13.Idea on combined coal mining technology with multi coal shearers for longwall coal mining face长壁工作面多采煤机联合采煤工艺的构想
14.Determination of Ventilation Way at Coal Face with Longwall Mining Method长壁采煤法采煤工作面通风方式的确定
15.Three Anti-Measures for Strike Longwall Retreating Mining In Sloping Coal Seam倾斜煤层走向长壁后退式采煤法的三防措施
16.Help arrived in the shape of our next-door neighbours.来帮助我们的是隔壁的邻居.
17.a documentary about coal miners反映煤矿工人的纪录片
18.The gas is here, and you see there is plenty of closet room.煤气在这儿，你瞧壁橱多宽绰。
相关短句/例句
coal wall spalling煤壁片帮
1.With the chemical grouting and reinforced technology for the coal and rock masses,the stability of the coal and rock mass was improved and the roof accidents due to the coal wall spalling was eliminated,which had ensured the successful mining operation of t.梧桐庄矿311综采工作面煤层顶板破碎、开采煤层倾角达到20~30,°工作面煤壁片帮严重、冒顶事故频繁。
2.In order to control the coal wall spalling in the fully mechanized high cutting longwall coal mining face,with the theoretic anal- ysis,numerical simulation,site measurement and other research methods,the paper studied the coal wall spalling mechanism of the fully mechanized longwall coal mining face.为控制大采高综采工作面煤壁片帮,通过理论分析、数值模拟、现场实测等研究方法。
3)rib fall煤壁片帮
1.Based on the condition of 3~# coal seam in Hetangou Coal Mine of Baotou mining bureaus, the effecting principle of dip mining and rise mining on rib fall in full-mechanized caving face has been studied, and to determine the advancing direction of the working face correctly is important for the rib-fall prevention has been pointed out.以包头矿务局河滩沟煤矿3号煤层放顶煤工作面为对象,应用力学分析方法,分析了俯、仰斜开采对煤壁片帮影响的力学机理,指出了由于工作面推进方向不同而引起顶板支承压力相对于煤壁自由面的位置不同,是造成煤壁片帮的主要原因之一,论述了确定工作面推进方向对防止煤壁片帮的重要性。
2.This article deals with the mechanism and dangers of the rib fall in the big shear height fully mechanized coal face.论述了大采高综采工作面煤壁片帮的机理及危害性,从煤层地质构造、综采工作面顶板压力活动、支架支撑状态等方面分析了影响大采高综采工作面片帮的因素,提出了加强液压系统管理、规范操作工序、煤壁固化等预防措施。
4)buttock[英]['b?t?k][美]['b?t?k]煤帮
1.Design of bolt support for buttock base on surrounding rock classification method of pressure releasing zone;基于松动圈围岩分类法煤帮锚杆支护设计
5)rib spalling片帮
1.According to the actual situation of rib spalling in high caving face in Sihe Coal Mine,after the mechanical analyzing,this article discussed the mechanism of rib spalling,the factors which affected the spalling,and the prevention and cure measure.根据寺河矿大采高工作面煤壁片帮的实际情况,通过建立大采高片帮的力学模型,探讨了大采高片帮机理、影响因素及片帮的防治措施。
2.Through observing and analyzing to roof and wall of spot in 6114 workface,this paper sum up rules and features of rib spalling and roof fall under complicated geology condition in sub-level caving mining workface,it raises a series of roof control measures and gets good result.通过对 6 114工作面顶板、煤壁现状的现场观测和理论分析 ,总结出了复杂地质条件下综放工作面煤壁片帮、端面顶板冒落的规律和特点 ,提出了一系列复杂地质条件下综放工作面顶板控制措施 ,现场应用后取得了较好的效
6)rib fall片帮
1.The characters, damage and cause of rib fall at blasting face were analysed, and preventive measures were put forward, which has some reference value for other similar condition mines.针对炮采工作面片帮特点、危害、原因进行深入分析,并提出相应的防范措施,对类似工作面片帮现象的防治具有借鉴意义。
延伸阅读
片帮1.采矿时矿壁或巷道两侧的岩石突然大片崩落。
