您要查找的是不是：
- coal pillars for quicksand 防砂煤岩柱
- The displacement angle of strata has a great bearing on the size of coal pillar for protection of buildings on very thick unconsolidated layers,and has a great economic potentials. 地层移动角参数对巨厚松散层矿井的建筑物保护煤柱尺寸影响很大，经济潜力十分巨大。
- Coal pillar for protection of buildings 保护煤柱
- coal pillar for protection of builings 保护煤柱
- Then three were tied to the pillar for execution. 接着有三个人被捆在刑柱上准备行刑。
- Analysis of Effect of Coal Pillars for Strip Extraction on Surface Buildings 条带开采煤柱留设对地表建筑物的影响分析
- Research on Simulation Test on Coal Mining with Coal Pillars for Fault 留设断层防水煤柱开采的模拟试验研究
- Then three were tied to the pillar for execution . 接着有三个人被捆在刑柱上准备行刑。
- STUDY ON DISTRIBUTION LAWS OF STRESS IN INCLINED COAL PILLAR FOR FULLY-MECHANIZED TOP-COAL CAVING FACE 综放面倾向煤柱支承压力分布规律研究
- Guide pillar mountings with self-oiling rings of pillar for smooth guiding. 滑动导柱底座，带自动润滑油环。
- coal pillar for avoiding water 防水煤柱
- Ideals and convictions are the spiritual pillars for a nation’s survival, development and vitalization. 加强大学生理想信念教育的对策，是适应时代发展要求对马克思主义、共产主义理想信念的再认识和合理建构。
- Dividing partition coal pillars and region coal pillars, and selecting parameter are key to prevent disaster. 区分隔离煤柱和区内煤柱,选择合理开采参数,是防止灾变的关键。
- On the basis of these, the coal pillars can be kept stable by adjusting and controlling the destabilization conditions. 根据这些特性，可通过调控煤柱失稳条件使之不失稳，达到控制煤柱稳定的目的。
- The mechanical model of key strata supported by coal pillar is set up according to the layout of coal pillars in the coalface of short wall mining. 根据短壁开采条件下保护煤柱的布设特点,建立由保护煤柱支承的关键层力学分析模型。
- Secondly, simulation elicits wall rock transmogrification under the different coal pillar and different stress. 其次模拟研究分析了留设煤柱宽度不同时以及地应力大小不一时沿空巷道围岩变形情况，得到了一些认识；
- In consideration of construction period and cost, the article advocates that the combination of foundation pit support and concrete jacking can reach sound results for quicksand treatment. 文章从工期和成本两方面进行分析,认为将基坑支护和人工挖孔桩的流砂治理相结合取得较好效果。
- Medium and small coal mines in north of Shaanxi Province generally adopt longwall remaining coal pillars support mining. 摘要长壁留煤柱支撑法开采是陕北中小煤矿普遍采用的一种采煤方法。
- The coal pillar has mode-soft behaviour, so it is possible to estimate the destabilization. 煤柱失稳还具有模态软化特性，可以对失稳的可能性进行佑计。
- The roof rock was assumed in the elastic state,established the mechanical model of coal pillar and roof system. 假设顶板岩层处于弹性工作状态情况下,建立了煤柱-顶板系统的力学模型。
