| 高压水射流割缝对煤体扰动影响规律研究及应用 |
| |
| 引用本文： | 张其智,林柏泉,孟凡伟,沈春明.高压水射流割缝对煤体扰动影响规律研究及应用[J].煤炭科学技术,2011,39(10):49-52,57. |
| |
| 作者姓名： | 张其智 林柏泉 孟凡伟 沈春明 |
| |
| 作者单位： | 中国矿业大学安全工程学院,江苏徐州221008／中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221008 |
| |
| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2011CB201205); 中国矿业大学煤炭资源与安全开采国家重点实验室自主研究基金资助项目(SKLCRSM08X03) |
| |
| 摘 要： | 基于高压水射流割缝层内卸压增透技术,运用ANSYS软件建立模型,模拟了高压水射流割缝后不同割缝宽度条件下煤体位移、应力的变化,根据模拟结果分析了割缝煤体受扰动影响的变化规律;同时在平煤集团十三矿进行了现场的试验和应用,并对割缝钻孔和普通钻孔进行了单孔抽采流量考察。ANSYS模拟研究表明,割缝宽度不同造成周围煤体位移和应力显著变化,割缝宽度增大煤体受扰动影响范围增大,加大了煤体裂隙扩展,提高了割缝煤体的卸压效果;经现场试验和应用,煤体进行高压水射流割缝后,割缝钻孔起始瓦斯抽采量是普通钻孔的2.5倍,且在考察时间内割缝孔的抽采流量远大于普通孔,提高了瓦斯抽采效率。
|
| 关 键 词： | 高压水射流 割缝 扰动影响 卸压 瓦斯抽采 |
Research and Application on Disturbance Influence Law of Seam Slot Cutting with High Pressurized Water Jet |
| |
| ZHANG Qi-zhi,LIN Bo-quan,MENG Fan-wei,SHEN Chun-ming.Research and Application on Disturbance Influence Law of Seam Slot Cutting with High Pressurized Water Jet[J].Coal Science and Technology,2011,39(10):49-52,57. |
| |
| Authors: | ZHANG Qi-zhi LIN Bo-quan MENG Fan-wei SHEN Chun-ming |
| |
| Affiliation: | ZHANG Qi-zhi1,2,LIN Bo-quan1,MENG Fan-wei1,SHEN Chun-ming1,2(1.School of Safety Engineering,China University of Mining and Technology,Xuzhou 221008,China,2.National Key Lab of Coal Resources and Safety Mining,China) |
| |
| Abstract: | Based on the pressure releasing and permeability improved technology with seam slot cutting by high pressurized water jet,the ANSYS software was applied to the establishment of the model to simulate the variation of the seam displacement and stress under the different slot cutting width after the slot cutting by the high pressurized water jet.According to the simulation results,the variation law of the disturbance influence from the seam slot cutting.Meanwhile,the site trial and application of the technolog... |
| |
| Keywords: | high pressurized water jet slot cutting disturbance influence pressure released gas drainage |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
