A kind of CAT hydraulic test rig has been developed in this dissertation. It is used for the experiment and test of valves for coal mining shield support for Zhengzhou Coal Mining Machinery Group.
本文研制了一种CAT液压试验台装置，用于对郑州煤机集团公司所生产的煤矿液压支架用阀进行综合性能测试。
LiWei INC was founded in 1999, integrating scientific research, design, production, operating in one, professional production and sale of Rock Drilling, mining accessories, engineering tools, rock drilling tools, milling machine milling teeth, milling Machine Cutter, road Mixer Cutter, coal mine cut teeth with various types of Shearer with conical teeth, knife-shaped cross-sectional tooth, boring machine with boring tooth, shield knives, metro shield machine shield configuration tools and various types of mining bits, rock drills, anchor drills, rotary drilling engineering cut-off teeth, using rotary drilling rig Rotary Drilling teeth, tooth roadheader, Rotary Drilling teeth, bucket teeth, tooth Block, and a variety of Rock Drilling Bits, including word, cross drill head, the ball tooth drill head, drill sets, drill tail, drill rod and so on.
香港立威刀具有限公司始建于1999年，集科研、设计、生产、经营于一体，专业生产和销售凿岩钎具、矿山配件、工程工具、岩土钻掘工具、铣刨机用铣刨齿、铣刨机刀头、路拌机刀头、煤矿用截齿、各种型号的采煤机用镐形截齿、刀形截齿、掘进机用掘进齿、盾构刀具、地铁盾构机用盾构刀具及各种型号的矿用钻头、岩石钻头、锚杆钻头、工程用旋挖截齿、旋挖钻机用旋挖齿、掘进机截齿、旋挖齿、斗齿、齿座和各种凿岩钎具包括一字钎头、十字钎头、球齿钎头、钎套、钎尾、钎杆等。
The type selection and vehicle category of subway shield construction accumulator mining locomotive
地铁盾构施工蓄电池矿用机车选型与车辆编组
Characteristics and Prevention Technology of Spontaneous Combustion in Goaf Area of False Dip Longwall Mining Face with Flexible Hydraulic Powered Shield Support
伪倾斜柔性掩护支架工作面采空区自然发火特点及防治技术
The paper held that the two leg shield caving powered support would not be suitable for the top coal caving mining in the hard coal seam and the joint crack undeveloped medium hard seam.
故两柱掩护式放顶煤支架不适用于硬煤层及节理裂隙不发育的中硬煤层放顶煤开采。
Beside on the overall analysis of used hydraulic powered shield supports mining face accident of casualties in Huainan mining group company 1988~2002 year, The basic concern situation and analysis and chide by model accident of casualties, The put forward prevention measure.
对淮南矿业集团伪倾斜柔性掩护支架采煤工作面1988～2002年间发生的伤亡事故进行了全面的分析研究，并在此基础上，论述了典型伤亡事故的相关情况、原因及其教训，提出了防范措施。
Numerical simulation reveals that preferred fault has obvious shield effect which cause tardy water irruption during underground mining of coal.
数值模拟结果显示，优势断裂具有明显的屏蔽效应，它是造成矿井滞后突水的主要原因。
The fact shows that the single leg type shield support and the technology of discharging coal in the side is an efficient method of coal mining under the condition of steep thick coal seam.
通过井下生产实践表明：单腿支撑柔性掩护支架采煤法和侧向放煤技术相结合是开采大倾角厚煤层一个新的、有效的采煤方法。
And the use of the flexible shield support technology that discharging coal in the side has solved the problem of " full height mining at one time " for thick coal seam, retrieving the coal resource effectively.
利用柔掩侧放煤技术解决了厚煤层一次采全高的问题，有效地回收煤炭资源。
Application of Remote Controlled Face End Hydraulic Powered Shield Support to Rapid Removing of Fully Mechanized Longwall Mining Face Equipment
遥控式端头掩护支架在综采面快速回撤中应用
Safety and high efficient coal mining technology for coal mining face with shield supports
掩护支架工作面安全高效开采技术
Analysis and handle some question and hitch in the mining coal face of hydraulic powered shield supports
掩护支架工作面问题分析和故障处理
East China (such as Shanghai, Nanjing, Ningbo, etc) is in soft soil area. Shield construction method is mostly used in this area, whose construction risk is less than mining and open-cut construction method.
华东地区（如上海、南京、杭州等）又多处于软土地区，此地区的区间施工采用的工法为大多为盾构施工。虽然施工风险小于暗挖、明挖等工法。
Then the Geotechnical and hydrological geology were three introduced, alternative construction methods - cut-and-cover method, shield method and mining method were presented. 2.
论文在介绍关角隧道入口段的工程地质及水文地质等的前提下，针对该区段提出了三种备选施工方法&明挖法、盾构法和暗挖法。
The frequently used method of metro tunnel construction includes NATM, mining method, shield, cut and cover method, immersed tube method, pipe jacking.
地铁区间隧道的修建方法常见的有新奥法、浅埋暗挖法、盾构法、明挖法、沉管法、顶管法等等。
The question of fully mechanised in the large dip argle pseudo-pitch work face Pillar Mining of Rock Cross-cut with Pseudo-sloping Flexible Shield
大角度伪俯斜综放开采存在问题及防治对策伪倾斜柔性掩护支架开采石门煤柱
According to such special geological conditions, the ZY5000/14/23 shield-type powered support is developed and provides new type of powered support for roof supporting for close-distance coal-seam mining under " two hard " conditions.
根据这一特殊地质条件，开发了ZY5000/14/23型液压支架，为两硬条件近距离煤层开采顶板支护提供了新的液压支架架型。
The paper pointed out the development tendency of the pseudo inclined coal mining with flexible shield supports.
提出了伪斜柔性掩护支架开采技术以后的发展趋势。
In the paper, pillar mining experiments of rock cross-cut with pseudo-sloping flexible shield are introduced, and practical experience and technique safeguard can also be obtained for pillar mining of rock cross-cut in steep coal seam.
国投新集三矿采用伪倾斜柔性掩护支架开采石门煤柱的实践，为急倾斜煤层石门煤柱的开采提供了实践经验和技术保证。
Pillar Mining of Rock Cross-cut with Pseudo - sloping Flexible Shield
伪倾斜柔性掩护支架开采石门煤柱