广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2014年
21期
243-246
,共4页
输气管道%煤矿开采%采空沉陷%安全评价
輸氣管道%煤礦開採%採空沉陷%安全評價
수기관도%매광개채%채공침함%안전평개
gas transmission pipeline%coal mining%mining subsidence%safety evaluation
以西气东输三线通过的古山墩煤矿采空区为例，采用概率积分法预测管道沿线地表的移动和变形，并以之表示管道的下沉和横移弯曲，进而建立了考虑管-土间轴向相互作用的计算模型，对管道在煤层充分开采情况下的轴向应力进行计算。计算结果表明：矿区地表变形、管道最大沉降量及管道最大轴向应力，三方面的计算结果量值均在相关规范的允许范围内，说明该煤矿开采对输气管道的威胁较小。
以西氣東輸三線通過的古山墩煤礦採空區為例，採用概率積分法預測管道沿線地錶的移動和變形，併以之錶示管道的下沉和橫移彎麯，進而建立瞭攷慮管-土間軸嚮相互作用的計算模型，對管道在煤層充分開採情況下的軸嚮應力進行計算。計算結果錶明：礦區地錶變形、管道最大沉降量及管道最大軸嚮應力，三方麵的計算結果量值均在相關規範的允許範圍內，說明該煤礦開採對輸氣管道的威脅較小。
이서기동수삼선통과적고산돈매광채공구위례，채용개솔적분법예측관도연선지표적이동화변형，병이지표시관도적하침화횡이만곡，진이건립료고필관-토간축향상호작용적계산모형，대관도재매층충분개채정황하적축향응력진행계산。계산결과표명：광구지표변형、관도최대침강량급관도최대축향응력，삼방면적계산결과량치균재상관규범적윤허범위내，설명해매광개채대수기관도적위협교소。
Taking the Gushandun coal mining area as an example, the probability integration method was used to calculate the surface movement and deformation along the pipeline which expressed the subsidence and lateral bending of pipeline, and the pipe -soil axial interaction computation model was established to calculate axial stresses of pipeline under the condition of the coal was completely mined. The results indicated that the surface deformation, maximum settlement and maximum axial stress of pipeline were all in the allowable range of relevant codes, which meant the coal mining, had less of an impact on pipeline.
