CAJ | 학술논문

以某矿S2205综放工作面为例，通过长期现场观测并结合数值模拟对综放工作面的瓦斯涌出规律进行研究，得到S2205工作面瓦斯涌出量的不同来源及各自所占比例，其中采空区内的瓦斯涌出量约占到工作面风排瓦斯涌出量的48．1%。同时对开采初期和正常回采期间的瓦斯涌出变化情况进行了统计和分析，发现瓦斯涌出量的变化与工作面矿压显现有着直接的联系，基本顶的垮落造成工作面前方煤体裂隙扩大和增加，并挤压采空区而导致瓦斯涌入工作面，造成工作面瓦斯涌出量的增大甚至超限。通过对综放工作面瓦斯涌出规律的分析，可以为高瓦斯综放工作面的瓦斯防治提供指导依据。
이모광S2205종방공작면위례，통과장기현장관측병결합수치모의대종방공작면적와사용출규률진행연구，득도S2205공작면와사용출량적불동래원급각자소점비례，기중채공구내적와사용출량약점도공작면풍배와사용출량적48．1%。동시대개채초기화정상회채기간적와사용출변화정황진행료통계화분석，발현와사용출량적변화여공작면광압현현유착직접적련계，기본정적과락조성공작면전방매체렬극확대화증가，병제압채공구이도치와사용입공작면，조성공작면와사용출량적증대심지초한。통과대종방공작면와사용출규률적분석，가이위고와사종방공작면적와사방치제공지도의거。
By long-term site measurement and numerical simulation, methane gushing rule of S2205 mining face was re-searched. Different sources of methane and respective proportion was obtained. Methane gushing amount from gob occupied 48. 1% of methane gushing amount by ventilation. On the basis of statistical analysis of methane gushing variation in initial mining phrase and nor-mal mining phrase, it was found that variation of methane gushing amount was directly related with underground pressure behav-ior. Basic roof caving made coal fissure in advance of mining face evolve and extrude gob, which resulted in increasing of methane gushing amount and even exceeding limit. Analyzing methane gushing rule of full-mechanized caving mining face could provide reference for methane prevention.