| 济宁煤田二号井田3下煤层顶板沉积格架及冲刷规律 |
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| 引用本文： | 蒋福兴,张威,蒋伟农,王世平.济宁煤田二号井田3下煤层顶板沉积格架及冲刷规律[J].黑龙江科技学院学报,1999,9(2):40-45. |
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| 作者姓名： | 蒋福兴 张威 蒋伟农 王世平 |
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| 作者单位： | 1. 辽宁工程技术大学
2. 沈阳市勘察测绘院 |
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| 摘 要： | 济宁二号井田3下煤层顶板沉积属上三角洲沉积.分流河道、决口扇、决口河道非常发育,由此构成了以弯曲的分流河道为主体,配置以决口扇、决口河道及分流间湾的沉积格架.通过对井下大量揭露巷道的实际观测及运用现代河流沉积理论的推演,找到了以水道规模和水道形态为主的影响3下煤层冲刷的诸因素,并从冲刷带形态、出现部位和冲刷深度变化趋势等方面总结出了该井田3下煤层的冲刷规律.
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| 关 键 词： | 沉积格架 冲积扇 分流河道 决口河道 冲刷深槽 上三角洲平原 交错原理 |
| 修稿时间： | 1999-03-26 |
Deposit Model and Scouring Lawof 3F Coal Seam Roof in 2 and Pit of Jining Coal Field |
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| Jiang Fuxing,Zhang Wei,Jiang Weinong,Wang Shiping.Deposit Model and Scouring Lawof 3F Coal Seam Roof in 2 and Pit of Jining Coal Field[J].Journal of Heilongjiang Institute of Science and Technology,1999,9(2):40-45. |
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| Authors: | Jiang Fuxing Zhang Wei Jiang Weinong Wang Shiping |
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| Institution: | Jiang Fuxing Zhang Wei Jiang
Weinong
(Liaoning Technical University)
Wang Shiping
(Shenyang Survey-measuring Institute) |
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| Abstract: | Deposit of 3F coal roof in jining 2and pit is of the upper delta deposittype. Due to well-developed distributary channels, crevasse channels and crevassechannels are occurence of deposit frameworks dondnated by winding distributary chan-nels and accompanied by crevasse channels, crevasse-splay and distributary gulf. Practi-cal observation of many tunnels in operation and applications of modern deposit theoryreveais the scouring-infiuencing main factors dondnated by channel scale and forms aswell as scouring -related rules derived from the fonns, locations and variations in depthInvolving the occurrence of scouring. |
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| Keywords: | deposit model distributary channel crevasse-splay crevasse channel upper delta deposit cross-bedding |
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