| 1. | Several automatic protection devices adopted in daliuta coal preparation plant
几种自动化保护装置在大柳塔洗煤厂的应用 |
| 2. | Cover - rock movement law for daliuta mine 12305 working face by similar simulation test
大柳塔煤矿12305工作面覆岩活动规律的相似模拟 |
| 3. | Research on coal fly ash treating the mine wastewater of da - liuta coal mine in shen - mu mine area
利用粉煤灰处理神木煤田大柳塔矿矿井废水研究 |
| 4. | Characteristics and utilization prospects of coal gangue from daliuta mine area of shendong coal field
神东煤田大柳塔矿区煤矸石特征及利用前景 |
| 5. | Research on the character of damage related to coal mining in daliuta coal mine and its formation mechanism
大柳塔煤矿采动损害特征及形成机理研究 |
| 6. | Based on the supporting design of resin anchoring bolt in daliuta coal mine , the engineering analogy method was adopted to design the supporting system using the new type of mechanical anchoring bolt in the testing entry of fully mechanized mining face
摘要以大柳塔矿树脂锚杆支护设计为基础，采用工程类比法进行综采工作面巷道新型机械锚杆支护设计。 |
| 7. | Because the loader and the moduls of elasticity exists part difference in key stratum and combinatorial key stratum , and the formulae of calculating the roof weighting step has difference , so there must be existing big error if we use the formulae of key stratum to calculate the shallow coal seam ' s weighting parameter
大柳塔1203工作面按照关键层计算得出的顶板来压步距与实际相差很大，而按照组合关键层计算得出的顶板来压步距与实际基本吻合。 |
| 8. | In accordance with the occurrence behavior of roof strata and the fracture characteristics of key stratum in shallow seam longwall mining , studied post - buckling behavior of roof key stratum in the process of mining by using initial post - buckling theory , which derived a critical load and a breaking span of the main roof during the first weighting , determined the final subsidence and the maximum rotation angle for broken key stratum , and presented an application with the example of daliuta 1203 face
摘要根据浅埋煤层顶板岩层的赋存特点和长壁开采时关键层的变形破断特征，应用初始后屈曲理论探讨了开采过程中顶板关键层的后屈曲性态，得出了老顶初次来压时顶板的临界载荷和破断步距，确定了顶板破断后的极限下沉量和回转角，并以神东矿区大柳塔1203工作面为例给出了工程实例。 |
