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- High hydraulic props 高水压支护
- The article summarize by the numbers construction practice and mine of high effciency on safety in the single hydraulic prop cannon coal face and quality in Huainan mine area. 文章系统地总结了淮南矿区单体液压支柱炮采面安全高效开采的基本经验和具体做法,提出了淮南矿区单体液压支柱炮采面今后的发展方向。
- This paper deals with the finite element model of DWX hydraulic prop in aid of Pro/MECHANICA. 本文用Pro/MECHANICA有限元分析软件,建立了柱塞悬浮式液压支柱的有限元模型。
- On the basis of the theory of probability, this paper analyzes stability for the hydraulic prop. 用概率理论分析了单体液压支柱的稳定性问题。
- The technical principle and structure characteristics of suspended column-piston hydraulic prop were introduced. 摘要介绍了柱塞悬浮式液压支柱的技术原理和结构特点；
- Drawing top-coal affects the stability of support sys tern, especially the stability of the end row hydraulic prop. 放煤对支护系统稳定性的影响主要体现在末排支柱稳定性的变化。
- This paper introduces a new type rotatable hydroclamp to disassemble hydraulic prop and its structure,working principle,test,application. 介绍一种用于单体液压支柱拆卸的新型液压夹紧装置及其结构,分析了工作过程,工作原理,试验、应用情况,指出了这种装置的优越性。
- The paper provides a systematic analysis and study of nitrogen weldingtechniques and rules of single hydraulic props and offers an optimum operation withbetter results. 对单体液压支柱氮化焊接工艺与规程进行了系统的分析和研究，优化了产品生产工艺，取得了较好效果。
- A introduction of super high hydraulic pump project and dead zone dynamic compensation of Electrohydraulic proportional control systems. 介绍一种超高温液压泵源方案及电液比例控制系统的死区动态补偿。
- The reasons of surface crackle of left valve barrel single hydraulic prop are researched with metalography analysis and test. 采用金相分析、化验等手段，研究了单体液压支柱左阀筒表面裂纹成因。
- Further description is made on the application and testing results of hydraulic prop in the deep well mining of slowly inclined thin ore vein. 还进一步介绍了水压支柱在深井缓倾斜薄矿脉开采中的使用情况和一些测试结果。
- Methods:The homemade-improve method and high hydraulic pressure method for syphilis of lacrimal passages of babies and infants were analyzed. 方法:自创改良型婴幼儿泪道冲洗法,高液压婴幼儿泪道冲洗法。
- Aiming at a series of problems in the management of individual hydraulic prop,this paperintroduced an information management system of individual hydraulic prop based on M-BUS. 针对目前单体液压支柱管理中存在的一系列问题,文章介绍了一种基于M-BUS的单体液压支柱信息管理系统。
- The underling formations are mainly constituted by alluvial-proluvial plain, so the level of groundwater is shallow and the stratums are high hydraulic permeability. 摘要青岛地区上伏地层第四系冲洪积平原，地下水埋深也比较浅，下伏地层常为透水较强的砂砾石层。
- The new type hydraulic prop reduces the accidents due to the seal leaking by using seal-compensation and seal-swelling, and reduces seal change times and maintenance times. 新型液压支柱采用密封补偿和密封胀紧等密封方式，可减少因密封泄漏而造成的冒顶等事故隐患，减少密封更换次数及维修次数。
- In column experiment during 21 days,it was observed that the granulated fly ash could continuously remove the phosphorus under high hydraulic loading rate. 还进行了为期21天的连续过滤试验,发现滤床在高水力负荷条件下能持续地去除景观水中的磷。
- Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength,premary supporting force,shrink amount and safety. 在薄煤层工作面中使用单体液压支柱，在支护强度、初撑力、可缩量、安全保障及操作人员安全上，都优于其它单体支护材料。
- How much of hydraulic pressure value upon lining may be intituled high hydraulic pressure? Now, there isn't clear boundary value in the field of tunnel engineering. 水压力较大时,水压力成为衬砌结构上的主要荷载,高水压力分界值与围岩级别的关系不大,而与衬砌断面形状关系密切,曲墙式衬砌承受水压力的能力远远超过直墙式衬砌。
- The paper introduces a kind of method to quick restore the single hydraulic prop cylinder by non-thinning wall way. The method has achieved good economic results in coal mines. 介绍一种修复单体液压支柱油缸的方法;这是通过不减壁方式达到快速修复的方法;在煤矿中已取得了很好的经济效果.
- The existing of high hydraulic pressure constrains the development of brittle-ductile transition, reducing the strength and intensifying fission cracking in soften area. 高水压力的存在抑制岩石脆性向塑性的发展，降低岩石的强度，同时对软化区裂纹的扩展、贯通起到加剧作用。
