1) waterproof coal pillar
防水煤柱
1.
UDEC simulation of the water-pouring probability in exploiting waterproof coal pillars under the conditions of thick loose bed and ultrathin overlying strata;
UDEC模拟厚松散层及超薄覆岩条件下开采防水煤柱覆岩突水可能性
2.
13-1 sublayer coal of the reducing waterproof coal pillars in No.
通过对潘一煤矿西二采区缩小防水煤柱块段13-1煤底分层赋存条件及其顶板岩性特征的研究,顶分层覆岩破坏规律的分析与研究,上覆松散含水层及基岩风化带的划分与评价,以及顶分层试采工作面出水及压架原因分析与研究,论证了本底分层块段缩小防水煤柱上综采的可行性。
3.
The author studies mainly on the characteristics of engineering geology about the zone of weathering overlying coal seam,the mechanism of cutting waterproof coal pillar and provides the reference for the coal mine with similar condition in cutting waterproof coal pillar.
对黄淮矿区古风化壳进行了详尽分析和简易分带，重点研究了开采煤上方风化带的工程地质特性，探讨了临界风化带开采缩小防水煤柱的机理。
2) waterproof pillar
防水煤柱
1.
On this basis,the 17116 first-thick seam extraction is successful mined with retaining 37 m waterproof pillar under increasing ceiling.
在此基础上对17116第一个厚煤层回采面成功地进行了留设37 m防水煤柱下的提高上限开采,取得了宝贵的开采经验和良好的矿井经济效益。
2.
The main target coal seam of Xieqiao Mine is directly covered with the Quaternary bottom gravels, whose impermeability affects the reasonable retainment of waterproof pillar.
第四纪底砾层直接覆盖在谢桥煤矿煤系地层之上,其隔水性能影响到防水煤柱的合理留设。
3.
In order to find the possibility and safety of coal exploitation under water with reduced waterproof pillar at upper limit,the vertical boreholes were drilled from the surface to detect overlaying rock failure.
为探求水体下采煤提高回采上限的可能性和安全性,利用地面探测钻孔进行覆岩破坏探测试验,试验表明了倾斜长壁综采条件下软弱覆岩的破坏发展高度较低,仅为常规数值的50%左右,为条件类似矿井缩小防水煤柱、提高采煤上限提供重要的参考。
3) water barrier
防水煤柱
1.
Methods of retaining water barrier and its stability analysis of steep working face
急倾斜工作面防水煤柱留设方法及其稳定性分析
2.
Analysing the shortcomings of the current method,this paper divedes water barrierinto two parts,i.
本文在分析了现有矿间防水煤柱留设方法存在问题的基础上，把煤柱划分为极限平衡区和弹性核两部分，提出应按弹性核留设防水煤柱。
4) waterproof coal pillars
防水煤柱
1.
The coal mining practice of reducing waterproof coal pillarsin Panxie Mining Area;
潘谢矿区缩小防水煤柱开采实践
2.
Hydrogeological feature and mechanism of reducing waterproof coal pillars in Panxie mines area;
潘谢矿区水文地质特征与缩小防水煤柱机理
3.
The water abundance state of the underlying aquifers determines the types and thickness of waterproof coal pillars to be designed in the near future.
由于新生界底部含水层是矿井的充水含水层,其水文地质参数的空间分布将成为矿井今后的防水煤柱留设方案的设计依据。
5) water barrier pillars
防水煤柱
1.
Numerical simulation of influence of water barrier pillars for subsided column on rock failure in mining process;
陷落柱防水煤柱留设对围岩变形影响的数值模拟
2.
Static simulations at different time of working face with water barrier pillars are carried out with FLAC3D , pseudo-dynamic simulation for excavation process of moving forwards are made up of static simulations being arranged according to rank of moving forwards in time field.
采用FLAC3D软件进行了防水煤柱留设条件下采矿工作面推进不同时刻的静态模拟,按推进顺序在时间域上的编排即构成了推进全过程的准动态模拟,可视化的结果为采矿影响评估、工作面布置和煤柱留设等采矿决策提供了依据,模拟结果表明,应力集中系数均随推进距离增加而增加,推进距离超过一定数值后,应力集中系数趋于常数;防水煤柱对顶底板位移影响极大,煤柱留设少,底板位移大,较大的煤柱尺寸,对应较小的顶底板破坏深度和较小的应力集中系数。
6) waterproof pillar
防水煤岩柱
1.
Beacuse of actual mining situation in two huai coal mine with representative sections coal mine are collected,concludeod,trsted and lresearched,this paper expounds meaning,kind,action,restricting connections,factors of influence,counting method and defining prinple with waterproof pillar,compressing height to reasonable size scope with waterproof pillar is a main way.
基于对两淮矿区具有代表性部分矿井实际开采情况的搜集、归纳、试验和研究 ,从理论与实践的初步结合上阐述了防水煤岩柱的含义、种类、作用、制约关系、影响因素、计算方法、确定原则等等 ,并相应提出了压缩防水煤岩柱高度至合理尺寸范围的主要途径。
补充资料：防水革
分子式：
CAS号：
性质：经防水剂处理后具有防水性能的革称为防水革，处理后可防止亲水的皮革遇水变硬、发霉。防水革分为疏水的和不透水的。疏水革不一定不透水，不透水革也不一定疏水。疏水革是利用疏水材料(有机硅羟乳或硅酮等)浸渍皮革，遇水时使革纤维降低表面张力，加大与水的接触角，使水在革面形成水珠滚落，不能润湿和扩散入革内。可做到既防水又不影响革的透水气性，多用于绒面革的表面处理。不透水革是将防水剂在皮革加油时一起加入革内，皮革遇水时，在革纤维的间隙会形成一种油包水的黏性乳液，阻止水继续渗入，防止水从革的一面透到另一面。这种防水处理可用于猎人靴等防水革制品。
CAS号：
性质：经防水剂处理后具有防水性能的革称为防水革，处理后可防止亲水的皮革遇水变硬、发霉。防水革分为疏水的和不透水的。疏水革不一定不透水，不透水革也不一定疏水。疏水革是利用疏水材料(有机硅羟乳或硅酮等)浸渍皮革，遇水时使革纤维降低表面张力，加大与水的接触角，使水在革面形成水珠滚落，不能润湿和扩散入革内。可做到既防水又不影响革的透水气性，多用于绒面革的表面处理。不透水革是将防水剂在皮革加油时一起加入革内，皮革遇水时，在革纤维的间隙会形成一种油包水的黏性乳液，阻止水继续渗入，防止水从革的一面透到另一面。这种防水处理可用于猎人靴等防水革制品。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条