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- The grouting reconstruction technique of lower confining bed can be used to control the water hazard from coal floor. 摘要煤层底板含水层注浆改造技术可以彻底根治底板水害。
- Water-inrush from coal floor is found to have two routes, catastrophic and slowmoving, and to have divergent character and modality softening character and so on. 进一步分析，发现煤层底板突水具有突变、缓慢两条路径，并在突水临界点附近具有发散性和4模态软化等性质。
- The renormalization group method is used to study the randomness and connectivity of the failture for coal floor element. 利用重整化群方法研究煤层底板岩层单元体破裂的随机性和关联性。
- Mining on the top of water-pressured, the water inrush in coal floor is a complex nonequilibrium and nonlinear evolution process. 摘要在承压水体上开采时，煤层底板突水过程是一个复杂的非平衡、非线性的演化过程。
- A hydrology geology concept model is build up through analysis of Karst water hydrology geology and its hydrodynamic condition of a set coal floor in Kongji minefield. 通过孔集井田A组煤底板岩溶水水文地质及水动力条件的分析,建立了水文地质概念模型。
- This paper applies elastic-plastic theory to analyse this problem and establish theory equation that can calculate the maximum coal floor damage depth.The measures wh... 应用弹塑性理论进行分析,建立了计算底板最大破坏深度的理论公式,并提出了初次来压时预防底板突水的措施,可供开采受底板承压水威胁的煤层时借鉴。
- Abstract: Through appropriately changing the water-inrush condition based on mechanical analysis, the potential energy function of water-inrush from coal floor could be derived, which conforms to the catastrophic model. 文摘:对建立在力学分析基础上的突水条件进行适当变换，得到煤层底板突水势函数，它符合尖点突变模型。
- According to these characters, water-inrush from coal floor could be hindered through adjusting and controllong the water-inrush condition from coal floor, so that the purpose of preventing the water-inrush from coal floor could be achieved. 根据这些特性，可通过调控煤层底板突水条件使之不突水，从而达到煤层底板突水治理并防患于未然的目的。
- With the mumerical calculation method, the influence and break of the floor aquifuge upon mining are analysed,the regular recognition of the mechanism of the gushing from coal floor is advanced. 应用数值计算方法，分析了采动对底板隔水层岩体上都和下部的影响与破坏，对底板突水机理提出了一些规律性的认识。
- In situ measurements verify the above by observing the confined water intruding up into the coal floor,the protective strata,before mining.This paper considers the secondary stress as the conditi... 底板的原位应力测试发现承压水在采前出现了向上入侵的现象，二次应力给导升的发展提供了条件，递进导升是突水机理之一。
- Keywords roof pressure;coal floor;water-irruption; 顶板来压;支承压力;承压开采;底板突水;
- Keywords coal floor;inrush;destroy; 煤层底板;突水;破坏;
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- We have enough coal to see the winter out. 我们有足够的煤过冬。
