| 龙固井田主采煤层顶板特征及工程地质分区 |
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| 引用本文： | 王怀洪,李增学,吕大炜,张晖.龙固井田主采煤层顶板特征及工程地质分区[J].山东科技大学学报(自然科学版),2007,26(2):5-8. |
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| 作者姓名： | 王怀洪 李增学 吕大炜 张晖 |
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| 作者单位： | 1. 山东科技大学,地球信息科学与工程学院,山东,青岛,266510;山东省煤田地质局,山东,泰安,271000
2. 山东科技大学,地球信息科学与工程学院,山东,青岛,266510 |
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| 摘 要： | 运用沉积学、地层学等与工程地质学相结合的方法,对巨野煤田龙固井田主采煤层顶板结构进行了精细研究,把龙固井田主采煤层顶板划分为下软上硬型、下硬上软型和复合型;详细研究了煤层顶板岩性分区特点,总结出五种顶板岩性组合类型:煤层—厚层状砂岩(老顶)、粉砂岩—厚层状砂岩(老顶)组合、泥岩—粉砂岩—厚层状砂岩(老顶)组合、粉砂岩—泥岩—厚层状砂岩(老顶)组合、泥岩—厚层状砂岩(老顶)组合等。结合顶板工程地质特征及评价,认为上述五种岩性组合顶板的稳定性依次变差。
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| 关 键 词： | 顶板沉积层序 顶板稳定性 龙固井田 |
| 文章编号： | 1672-3767（2007）02-0005-04 |
| 收稿时间： | 2006-11-02 |
| 修稿时间： | 2006年11月2日 |
The Characteristics of Main Seam Roof and Engineering Geological Partition in Longgu Coalfield |
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| WANG Huai-hong,LI Zeng-xue,LV Da-wei,ZHANG Hui.The Characteristics of Main Seam Roof and Engineering Geological Partition in Longgu Coalfield[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,2007,26(2):5-8. |
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| Authors: | WANG Huai-hong LI Zeng-xue LV Da-wei ZHANG Hui |
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| Institution: | 1. College of Geo-info Science and Engineering, SUST, Qingdao, Shandong 266510, China; 2. Shandong Coal Geological Bureau,Taian Shanclong 271000, China |
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| Abstract: | By the way of sedimentary,stratigraphy and other engineering geology science,the main seam roof structure in Longgu coalfield is studied in detail.It can be divided into hardness-upward,softness-upward or their compound and so on.By analyzing seam roof lithologic distribution,sedimentary sequence and joint characteristic in detail,five kinds can be concluded,which are coal-thick sand,soil-siltstone-thick sand,siltstone-soil-thick sand,soilthick sand and so on.According to roof engineering geological characteristic and evaluation,the stability of the former referred becomes worse in turn. |
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| Keywords: | sedimentary sequence stability of seam roof Longgu coalfield |
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