急倾斜特厚煤层水平分段综放采动应力分布规律研究

doi:10.11799/ce201609027

Abstract

Abstract: In order to study the mining stress distribution regulation of the steep-inclined and extremely thick coal seam, use the FLAC3D numerical simulation software and the field measurement two methods to study the horizontal stress, vertical stress and shear stress distribution regulation of steep-inclined and extremely thick coal seam sectioned fully-mechanized top-coal caving in A dao-hai. According to the numerical simulation results, the influence scope of lead abutment pressure in working face is small while the side abutment pressure has a greater influence scope. Nearby the working face roadway show a obviously stress concentration phenomenon. The stress of the floor roadway is weaker than the roof roadway, but the floor roadway has a larger relative displacement than the floor roadway. The floor roadway’s deformation is mostly floor heave and roof subsidence while the roof roadway’s deformation is mostly global deformation. Measured data shows that mining of the upper slice has a strong influence in the lower slice in the steep-inclined and extremely thick coal seam sectioned fully-mechanized top-coal caving, the lead influence distance is 30m.

CLC Number:

TD323

0
/ / Recommend

Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks

URL: http://www.coale.com.cn/EN/10.11799/ce201609027

http://www.coale.com.cn/EN/Y2016/V48/I9/91

References

[1]王宁波,张农,崔峰等. 急倾斜特厚煤层综放工作面采场运移与巷道围岩破裂特征[J]. 煤炭学报,2013,08:1312-1318.(Wang Ningbo,Zhang Nong,Cui Feng,et al. Characteristic of stope migration and roadway surrounding rock fracture for full-mechanized top-coal caving face in steeply dipping and extra-thick coal seam[J]. Journal of China coal society. 2013,08:1312-1318.)
[2]张勇,张保,刘金凯等. 急倾斜厚煤层走向长壁开采底板破坏滑移机理[J]. 煤炭科学技术,2013,10:9-12.(Zhang Yong,Zhang Bao,Liu Jinkai,et al.Damage slip mechanism of floor in longwall mining on the strike of steep and thick coal seam[J]. Coal science and technology, 2013,10:9-12.)
[3]屠洪盛,屠世浩,白庆升等. 急倾斜煤层工作面区段煤柱失稳机理及合理尺寸[J]. 中国矿业大学学报,2013,01:6-11+30.(Tu Hongsheng,Tu Shihao,Bai Qingsheng,et al. Instability of a coal pillar section located at a steep mining face:Pillar size selection[J]. Journal of China university of mining & technology, ,2013,01:6-11+30.)
[4]戴华阳,郭俊廷,易四海等. 特厚急倾斜煤层水平分层开采岩层及地表移动机理[J]. 煤炭学报,2013,07:1109-1115.(Dai Huayang,Guo Junting,Yi Sihai,et al. the mechanism of strata and surface movements included by extra-thick steeply include coal seam applied horizontal slice mining[J]. Journal of China coal society. 2013,07:1109-1115.)
[5]戴华阳,易四海,郭俊廷等. 特厚急倾斜煤层水平分层开采地表移动预计方法[J]. 煤炭学报,2013,08:1305-1311.( Dai Huayang,Yi Sihai,Guo Junting,et al.Prediction method for surface movements and deformation included by extra-thick steeply inclined coal horizontal slice mining[J]. Journal of China coal society, 2013,08:1305-1311.)
[6]屠洪盛,屠世浩,陈芳等. 基于薄板理论的急倾斜工作面顶板初次变形破断特征研究[J]. 采矿与安全工程学报,2014,01:49-54+59.(Tu Hongsheng,Tu Shihao,Chen Fang,et al. Study on the deformation and fracture feature of steep inclined coal seam roof based on the theory of thin plates[J]. Journal of Mining &safety engineering, 2014,01:49-54+59.)
[7]查文华,谢广祥,罗勇. 不同支护形式下急倾斜煤层巷道支护对比实验研究[J]. 煤矿安全,2006,06:4-7.(Zha Wenhua,Zhang Jun,Luo Yong. Contrast testing study on steeply inclined seam roadway support under different support form[J]. Safety in cial mines, 2006,06:4-7.)
[8]王建鹏,张军. 急倾斜煤层围岩活动规律及煤柱合理宽度研究[J]. 煤炭科学技术,2014,01:27-29+33.(Wang Jianpeng,Zhang Jun. Research on law of surrounding rock movement and rational coal pilar width determination in steep seam[J]. Coal science and technology, 2014,01:27-29+33.)
[9]李永明,刘长友,徐青云等. 急倾斜煤层开采防水煤柱稳定性影响因素研究[J]. 煤炭科学技术,2012,12:15-18+23.（Li Yongming,Liu Changyou,Xu Qingyun,et al. Study on factors Affected to stability of water prevention coal pillar in steep inclined seam mining[J]. Coal science and technology, 2012,12:15-18+23.）
[10]伍永平,张永涛,解盘石等. 急倾斜煤层巷道围岩变形破坏特征及支护技术研究[J]. 煤炭工程,2012,01:92-95.(Wu Yongping,Zhang Yongtao,Xie Panshi,et al. Study on surrounding rock deformation failure features and support technology of gateway in seep inclined seam[J]. Coal engineering, ,2012,01:92-95)

[1]	. [J]. COAL ENGINEERING, 2018, 50(12): 62-65.
[2]	. Study on strata behavior law of fully mechanized caving mining in thick coal seam [J]. COAL ENGINEERING, 2018, 50(11): 54-57.
[3]	. [J]. COAL ENGINEERING, 2018, 50(10): 96-100.
[4]	. Characteristics of stress and deformation of surrounding rock in gob-side entry retaining and the optimized support design [J]. COAL ENGINEERING, 2018, 50(10): 130-133.
[5]	. Research of Mechanism and Prevention Technology of Rib Spalling at Fully-Mechanized Coal Mining Face with Soft and Unstable Seam [J]. COAL ENGINEERING, 2018, 50(9): 67-70.
[6]	. Research on Influence Scope to the Gates by the Caving of Tingnan Mechanized Top-coal Caving of 302 Work-face [J]. COAL ENGINEERING, 2018, 50(7): 61-63.
[7]	. Study on the Characteristics of Accidents with Strong Mine Pressure under the Influence of Coal Mining in Nariin Gol No. 2 Coal Mine [J]. COAL ENGINEERING, 2018, 50(5): 71-74.
[8]	. Study on Rock-burst Prevention with Horizontal sectionTop Coal Caving in Steep-inclined and Thick Coal Seam [J]. COAL ENGINEERING, 2018, 50(4): 66-69.
[9]	. Study on the law of the rock pressure and roadway deformation of the double gob-side entry retaining of the compacted filling surface [J]. COAL ENGINEERING, 2017, 49(10): 119-121.
[10]	. Research on technologies of rib spalling control under fully mechanized top coal caving mining of loose and soft coal seam [J]. COAL ENGINEERING, 2017, 49(8): 95-98.
[11]	. [J]. COAL ENGINEERING, 2017, 49(8): 114-116.
[12]	. Study on rock pressure theory of crossing upper coal pillar in close distance seams in Shangwan coal mine [J]. COAL ENGINEERING, 2017, 49(4): 74-76.
[13]	. Study on Strata Behavior Law of Coal Mining Face Push the Collapse Posts at Initial Mining [J]. COAL ENGINEERING, 2017, 49(2): 56-58.
[14]	. Study on the Influence Scope of Advancing Abutment Pressure and the Technology of Yield Mining at Ending Stage of Fully-Mechanized Face in Shallow Seam [J]. COAL ENGINEERING, 2016, 48(12): 53-55.
[15]	. Strata behavior research of backfill mining with high water materialin deep mining of large height [J]. COAL ENGINEERING, 2016, 48(8): 64-67.

Study on Mining Stress Distribution regularity of Steep and Thick Coal Seam in Adaohai Mine

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments