中国煤炭
中國煤炭
중국매탄
CHINA COAL
2013年
10期
96-99
,共4页
刘英振%丁永明%吴红玉%崔凯
劉英振%丁永明%吳紅玉%崔凱
류영진%정영명%오홍옥%최개
水力冲孔%地应力%应力集中%布孔间距%煤巷掘进
水力遲孔%地應力%應力集中%佈孔間距%煤巷掘進
수력충공%지응력%응력집중%포공간거%매항굴진
hydraulic flushing%geostatic stress%stress concentration%borehole spacing%coal roadway tunneling
为了探究地应力在水力冲孔掩护煤巷掘进过程中对布孔的影响，以首山矿11041工作面水力冲孔布孔为例，通过数值模拟与现场应用结合的方法，得到了地应力对钻孔间距的影响程度及合理的布孔间距。结果表明水力冲孔布孔间距不仅以瓦斯压力和含量为依据，更要考虑钻孔之间应力集中现象，钻孔设计也要考虑煤巷掘进两帮应力集中的安全距离。
為瞭探究地應力在水力遲孔掩護煤巷掘進過程中對佈孔的影響，以首山礦11041工作麵水力遲孔佈孔為例，通過數值模擬與現場應用結閤的方法，得到瞭地應力對鑽孔間距的影響程度及閤理的佈孔間距。結果錶明水力遲孔佈孔間距不僅以瓦斯壓力和含量為依據，更要攷慮鑽孔之間應力集中現象，鑽孔設計也要攷慮煤巷掘進兩幫應力集中的安全距離。
위료탐구지응력재수력충공엄호매항굴진과정중대포공적영향，이수산광11041공작면수력충공포공위례，통과수치모의여현장응용결합적방법，득도료지응력대찬공간거적영향정도급합리적포공간거。결과표명수력충공포공간거불부이와사압력화함량위의거，경요고필찬공지간응력집중현상，찬공설계야요고필매항굴진량방응력집중적안전거리。
In order to study the influence of geostatic stress on the borehole layout for hyG draulic flushing during coal roadway tunneling,the borehole layout of hydraulic flushing at No. 1104 mining face in Shoushan Mine was taken as an example.The influencing degree of geostatic stress on the the borehole spacing and the reasonable borehole spacing were obtained by using the method of numerical simulation combined with field application.The results showed that the deG termination of borehole spacing of hydraulic flushing should not only be based on gas pressure and content,but the stress concentration between boreholes.Meanwhile,the borehole design should also be based on the safe space of the stress concentration caused by coal roadway tunneG ling.
