Rss
Email Alert
Toggle navigation
Home
About Journal
Editorial Board
Authors
Instruction
Format
Template
Copyright Agreement
Editorial Office Introduction
Journal Online
Current Issue
Just Accepted
Archive
Most Read Articles
Most Download Articles
Most Cited Articles
E-mail Alert
RSS
Subscription
Contact Us
中文
2
1
3
Previous
Next
News
More>>
test1test1test1test1test1test1test1
fdas fda fdsewf fewf vcgre gbtr trhf fdsfew fewfds fdsfdsaf fdsaf dsa fds fdsa
1
Journal of Mining and Safety Engineering
ISSN 1673-3363
CN 32-1760/TD
Current Issue
Volume 41 Issue 2
15 March 2024
Journal
Current Issue
Just Accepted
Archive
Most Read Articles
Most Download Articles
Most Cited Articles
Authors
Instruction
Format
Template
Copyright Agreement
Most Download
More>>
Most Cited
More>>
Links
More>>
Current Issue
15 March 2024, Volume 41 Issue 2
Previous Issue
Energy response characteristics and dynamic instability mechanism of coal pillar in fully-mechanized top-coal caving face induced #br# #br# by the dynamic and static loads#br#
2024, 41(2): 221-231. doi:
10.13545/j.cnki.jmse.2022.0316
Asbtract
(
51
)
PDF
(12265KB) (
41
)
Related Articles
|
Metrics
Investigating coal pillar size in district sublevel and regional surrounding rock controlling in inclined extra-thick coal seam#br#
2024, 41(2): 232-241. doi:
10.13545/j.cnki.jmse.2022.0348
Asbtract
(
43
)
PDF
(3084KB) (
26
)
Related Articles
|
Metrics
Asymmetric failure mechanism and control of entries in short-distance coal seam#br#
2024, 41(2): 242-254. doi:
10.13545/j.cnki.jmse.2022.0641
Asbtract
(
36
)
PDF
(5396KB) (
28
)
Related Articles
|
Metrics
Experimental study and application of confined concrete column for automatically roof-cutting formed roadway#br#
#br#
2024, 41(2): 255-266. doi:
10.13545/j.cnki.jmse.2022.0480
Asbtract
(
36
)
PDF
(10578KB) (
19
)
Related Articles
|
Metrics
Investigation into the durability and stress corrosion cracking of cable bolts in underground mine environments#br#
2024, 41(2): 267-276. doi:
10.13545/j.cnki.jmse.2022.0186
Asbtract
(
28
)
PDF
(3316KB) (
28
)
Related Articles
|
Metrics
Quantifying coal pillar dam width and analyzing influencing factors in underground reservoirs of inclined coal seams#br#
2024, 41(2): 277-284. doi:
10.13545/j.cnki.jmse.2022.0527
Asbtract
(
22
)
PDF
(1706KB) (
13
)
Related Articles
|
Metrics
Research on the abutment stress evolution of working face mining under triangular oblique coal pillar in shallow buried close coal seams#br#
2024, 41(2): 285-294. doi:
10.13545/j.cnki.jmse.2023.0501
Asbtract
(
24
)
PDF
(8137KB) (
37
)
Related Articles
|
Metrics
Enhancing recovery efficiency during the final mining phase of fully mechanized caving mining under thick-coal hard-roof conditions: countermeasures and strategies#br#
2024, 41(2): 295-304. doi:
10.13545/j.cnki.jmse.2022.0525
Asbtract
(
23
)
PDF
(236KB) (
13
)
Related Articles
|
Metrics
针对厚煤硬顶工作面末采期间存在大面积悬顶引起的采动应力集中及回采效率低的问题,以唐家会煤矿61304工作面为工程背景,运用相似模拟试验、理论分析、数值模拟和现场实测等综合研究方法,在分析16.8 m特厚煤层以及15.8 m厚硬基本顶工作面末采期间覆岩垮落规律、悬臂结构力学传递机制、应力演化特征等影响因素的基础上,采用爆破切顶协同控制顶板技术,以达到提高回采率的目的。结果表明:覆岩悬臂结构在回采时期产生超前应力集中,导致末采期间顶煤回收量降低,停采煤柱被迫增加;爆破切顶破坏末采时期悬臂结构,切断超前采动应力传播途径,厚硬基本顶对工作面传递压力减弱,工作面放顶距离延长;悬臂角度与超前应力峰值呈负相关,悬臂长度与超前应力峰值呈正相关,通过破坏悬臂结构缩短悬臂长度可降低超前应力峰值;末采期间爆破切顶后超前应力峰值平均降低约5.76 MPa,停采煤柱缩短20 m,煤炭回收效率提高。工程实践表明,爆破切顶工艺能改善末采时期顶板悬空引起的采动应力集中,有效控制平巷围岩变形,极大提高煤炭回收效率,保障末采期间安全高效回采。
Safety analysis and prevention and control technology of thick coal seam mining under river in Xingyun coal mine#br#
2024, 41(2): 305-314. doi:
10.13545/j.cnki.jmse.2022.0319
Asbtract
(
21
)
PDF
(4452KB) (
17
)
Related Articles
|
Metrics
Impact of overburden movement evolution on disasters in shallow-buried coal seam mining in ravine regions#br#
2024, 41(2): 315-325. doi:
10.13545/j.cnki.jmse.2023.0080
Asbtract
(
29
)
PDF
(9689KB) (
19
)
Related Articles
|
Metrics
Stability evaluation of underground gasification site foundation and preliminary investigation on supercritical CO
2
storage in combustion space#br#
2024, 41(2): 326-340. doi:
10.13545/j.cnki.jmse.2023.0259
Asbtract
(
25
)
PDF
(3610KB) (
8
)
Related Articles
|
Metrics
Calculation and application of non-directional near-horizontal #br# #br# borehole trajectory parameters#br#
2024, 41(2): 341-351. doi:
10.13545/j.cnki.jmse.2022.0528
Asbtract
(
22
)
PDF
(4426KB) (
17
)
Related Articles
|
Metrics
Experimental study on thermal-hydraulic-mechanical coupling of rock mass in water-conducting fault co-exploiting #br# of coal and geothermal energy#br#
2024, 41(2): 352-361. doi:
10.13545/j.cnki.jmse.2022.0490
Asbtract
(
27
)
PDF
(3363KB) (
22
)
Related Articles
|
Metrics
Brazilian splitting characteristics and weakening mechanism of coal under the influence of water content#br#
2024, 41(2): 362-371. doi:
10.13545/j.cnki.jmse.2022.0347
Asbtract
(
26
)
PDF
(5908KB) (
17
)
Related Articles
|
Metrics
Mechanical characteristics and support mechanism of coal-rock combined body under unload-loading conditions beyond peak strength#br#
2024, 41(2): 372-383. doi:
10.13545/j.cnki.jmse.2023.0078
Asbtract
(
30
)
PDF
(4386KB) (
16
)
Related Articles
|
Metrics
为深入研究煤岩组合体的峰后卸加载力学特性,采用PFC(Particle Flow Code)数值模拟软件对其进行了模拟试验,分析了不同卸载应力水平、卸载速率和支护方案对其强度、弹性模量、峰值轴向应变、冲击能量指数及声发射等特征的影响。结果表明:煤岩组合体在峰后阶段已经产生损伤,其峰后卸加载强度、弹性模量、冲击能量指数和最大声发射撞击计数均低于峰前常规单轴压缩的结果。在相同的卸载速率下,峰后卸载应力水平越高,煤岩组合体峰后卸加载强度越高。卸载速率对煤岩组合体峰后卸加载有整体强化和局部弱化两方面的作用。在相同峰后卸载应力水平条件下,随卸载速率的增加,煤岩组合体峰后卸加载强度呈“先增大、后减小”的演化特征。支护能够显著提高破碎煤岩组合体的强度和弹性模量,但只有稳定的支护方式才能够有效降低其冲击能量指数。为提高破碎煤岩体的稳定性和降低冲击风险,应当选择具有高强度、高可靠性和大变形能力的支护系统并增加护表面积。工程示例证明研究成果对现场工程实践具有指导意义。
Compaction deformation and acoustic emission characteristics of fractured rock with different lithology in goaf#br#
2024, 41(2): 384-394. doi:
10.13545/j.cnki.jmse.2022.0478
Asbtract
(
24
)
PDF
(3931KB) (
11
)
Related Articles
|
Metrics
Study on mechanical characteristics and deterioration mechanism of frozen and melted coal under the action of liquid nitrogen#br#
#br#
2024, 41(2): 395-406. doi:
10.13545/j.cnki.jmse.2022.0320
Asbtract
(
21
)
PDF
(5791KB) (
12
)
Related Articles
|
Metrics
An inverse method for the heterogeneous fracture networks of fractured shale gas/coalbed methane wells with well-testing#br#
#br#
2024, 41(2): 407-419. doi:
10.13545/j.cnki.jmse.2023.0326
Asbtract
(
17
)
PDF
(4877KB) (
10
)
Related Articles
|
Metrics
Experimental study on tensile properties and crack propagation of dry and saturated tuff under different strain rates#br#
2024, 41(2): 420-429. doi:
10.13545/j.cnki.jmse.2022.0308
Asbtract
(
22
)
PDF
(5777KB) (
16
)
Related Articles
|
Metrics
Experimental study of the temperature influence on mode Ⅰ fracture toughness of sandstone specimens with different porosities#br#
2024, 41(2): 430-436. doi:
10.13545/j.cnki.jmse.2022.0382
Asbtract
(
29
)
PDF
(1959KB) (
14
)
Related Articles
|
Metrics