| 山东全新世滨海软土与工程地质灾害的研究 |
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| 引用本文： | 吴建政.山东全新世滨海软土与工程地质灾害的研究[J].海洋地质与第四纪地质,1995,15(3):43-54. |
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| 作者姓名： | 吴建政 |
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| 作者单位： | 地质矿产部海洋地质研究所 青岛，266071 |
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| 摘 要： | 山东全新世滨海软土分布在海湾、泻湖、河口区，厚度１－１０ｍ。海湾、泻湖软土为淤泥、淤泥质土，陆源物质供应丰富的浅水区，软土颗粒偏粗，强度相对较高，触变性对建筑物危害性大，陆源物质供应少的深水区，软土颗粒偏细，低强度、高压缩性、沉降变形大和蠕变性是危及建筑物稳定的主要因素。海湾、泻湖软土位于地下水位下，具低透水性，掩埋后短期不易排水固结，软土下为强度较高的冲积物，对一般建筑物，利用强夯、粉喷搅拌桩、
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| 关 键 词： | 全新世 滨海 软土 工程地质灾害 防治 |
STUDY OF SHANDONG HOLOCENE LITTORAL SOFT SOIL AND ITS ENGINEERING GEOLOGICAL HAZARD |
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| Wu Jianzheng.STUDY OF SHANDONG HOLOCENE LITTORAL SOFT SOIL AND ITS ENGINEERING GEOLOGICAL HAZARD[J].Marine Geology & Quaternary Geology,1995,15(3):43-54. |
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| Authors: | Wu Jianzheng |
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| Abstract: | Shandong Holocene littoral soft soil is distributed in bays, lagoons and river estuaries and has a thickness of 1-10m. Bay and lagoon soft soil is mud or muddy soil. In shallow water area with rich terrigenous supply,the soft soil grains are relatively coarse and intensity relatively high,but its thixotropy can do great harm to constructions. In deep water area with little terrigenous supply,the soft soil grains are finer and with lower intensity and high compression, and the great subsidence deformation and creep property are main damaging factors to construction stability. Bay and lagoon soft soil is below groundwater level,with low permeability,and when buried,it is difficult to have water drain out. Underlying the soft soil is alluvium with relatively high intensity, which is suitable to small construction after foundation treatment. The Yellow River delta is made up of silt and soft soil. Both of them can do harm to engineering. Littoral soft soil can be correctly evaluated by means of in-situ static sounding and vane test. And this is the basis of prevention of engineering geological hazards caused by soft foundation. |
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| Keywords: | Shandong Holocene littoral soft soil engineering geological hazard prevention |
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