安全煤柱

The paper has studied the strata distributive character and engineering geologic property of bed rock zone of weathering in cryptical coal field, based on large of data form testing and real-field materials, taking importance on the laws of overlying destruction and underground pressure behavior and the mechanism of decreasing protective coal columns while extracting proximity zone of weathering .

以大量实验数据和现场测试资料为依据，研究了隐伏煤田基岩风化带岩体的分布特点及工程地质特性，重点论述了邻近风化带开采的覆岩破坏和矿山压力显现规律以及缩小防护煤柱的机理，为类似矿井的资源回收与安全开采提供了依据。

Using the technology of injecting FCL-C serous fluid into fracture zone of faults, the water transmissibility of F_(25-1) and F_(east-1) faults can be changed. Using that and other security technology steps, the waterproof coal pillar in faults can be mined safely.

并利用FCL—C浆液，注浆加固断层破碎带技术，改变F_(25—1)和F_(东—1)断层的导水性，并通过采取其它的安全技术措施，实现断层防水煤柱的安全开采。

Then checking up mining practice, analyzing the observation and prediction data of dripping water amount and effusing water amount throughout mining. It is obvious from the research that the definitive width of waterproof pillar

研究结果表明，所确定的防水煤柱宽度满足开采要求，经济合理；同时，所采用的几种研究方法分析结果基本吻合，说明运用上述方法进行安全防水煤柱宽度的合理留设具有较强的可靠性，对类似矿山有一定的参考价值。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。