| 徐淮地区新地层的压实与异常孔隙压力的形成 |
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| 引用本文： | 周治安.徐淮地区新地层的压实与异常孔隙压力的形成[J].安徽理工大学学报(自然科学版),1991(Z1). |
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| 作者姓名： | 周治安 |
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| 作者单位： | 淮南矿业学院地质系 |
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| 摘 要： | 本文依据对徐州、淮北地区第四含水层的特征和四含水位急剧下降情况的分析,指出四含水位下降造成该区新生代下部覆盖层的压实,因而导致地面沉降。又指出疏排四含水在细颗粒沉积物中可以形成异常孔隙压力,而异常孔隙压力很可能是引起该区煤矿立井井筒破裂的重要原因。
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| 关 键 词： | 压实 异常 孔隙压力 井筒 破裂/欠压实 |
Compaction and Formation of Abnormal Pore-pressure in Young Strata of Xuzhou-Huaibei Area |
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| Zhou Zhian.Compaction and Formation of Abnormal Pore-pressure in Young Strata of Xuzhou-Huaibei Area[J].Journal of Anhui University of Science and Technology:Natural Science,1991(Z1). |
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| Authors: | Zhou Zhian |
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| Institution: | Department of Geology |
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| Abstract: | Based on an analysis of characteristics of 4th aquifer and its rapid drawdown in Xuzhou to Huaibei area, lowering water table of 4th aquifer have caused compaction in lower Cenozoic overburden, and lead to ground surface subsidence in this region. Another effects of draining ground water can form undercompaction in fine-grain sediments , and undercompaction sediments have abnormal pore-pressure that is possible important origin of coal-mine shaft rupturing in the area |
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| Keywords: | compacting abnormal pore pressure shafts ruptures/under compaction |
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