普采工作面正悬臂梁与倒悬臂梁支护梁的挠度研究  

Beam Deflection Research of Positive Cantilever Beam and Invertecl Cantilever Beam in General Mining Working Face

作　　者：林智馨[1] 程虹铭[1] LIN Zhi-xin;CHENG Hong-ming(School of Coal Engineering, Shanxi Datong University, Datong Shanxi, 037003)

机构地区：[1]山西大同大学煤炭工程学院,山西大同037003

出　　处：《山西大同大学学报（自然科学版）》2017年第3期64-66,共3页Journal of Shanxi Datong University(Natural Science Edition)

摘　　要：在普采工作面,按铰接顶梁与液压支柱的配合关系,可分为正悬臂梁与倒悬臂梁。为了分析正悬臂梁与倒悬臂梁在支护中顶板对梁破坏程度,运用龙格-库塔法,对同一均匀截面的梁在不同荷载作用下的挠度实验分析研究,得出梁上不同点的挠度,从中可以得出:正悬臂梁支护方式中顶板对梁的损害程度比倒悬臂梁支护方式中要小;且同一荷载作用下,离自由端越近梁的变形程度越大。这些结论可以为普采工作面中铰接顶梁与液压支柱的配合提供理论根据,以减少对顶梁破坏,保证顶板的稳定性,实现矿井的连续生产。In the general mining working face,according to the hinged top beam and pillar of the relation,there are positive cantilever beam and cantilever beam.Now in order to analyse the damage cantilever beam and cantilever beam in support of roof beam damage,by using the Runge-Kutta method,the same uniform cross section beam under different loads were analysed and researched,obtaining the beam deflection of different points,analyse the damage cantilever beam supporting method caused less beam damage than inverted cantilever support;and under the same loads the mearer from the free end,thebigger the cleflection.These conclusions can beused as ordinary mining face with hydraulic prop in hinged cooperation and provide a theoretical basis to reduce the beam damage,ensure the stability of the roof,to realize the continuous production of mining.

关 键 词：普采工作面 正悬臂梁与倒悬臂梁 铰接顶梁 四阶龙格-库塔法 

分 类 号：TD355[矿业工程—矿井建设]