断步 meaning in Chinese
break
Examples
- Aiming at the abnormal strata behavior in the advance entry of 1303 fully - mechanized working face in xinglongzhuang coal mine , the movement rule , characteristic , step distance of fracturing , position and mode of fracturing of the overlying strata in mining process is analyzed by using the key strata theory
摘要针对兴隆庄煤矿采区1303综放工作面超前平巷发生奇异压力的现象，采用关键层理论对在采动过程中的上覆岩层运动规律进行了详细的力学分析，研究了它们的运动特征、破断步距、断裂位置、断裂方式以及对工作面及其超前平巷的来压规律，对比分析了该工作面矿压实测数据与理论研究成果。 - 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。