| 西安地裂缝近期超常活动因素及其量化分析 |
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| 引用本文： | 王德潜,索传郿,贾思吉.西安地裂缝近期超常活动因素及其量化分析[J].陕西地质,1996(1). |
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| 作者姓名： | 王德潜 索传郿 贾思吉 |
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| 作者单位： | 陕西省地质矿产厅!雁塔路北段70号，710054(王德潜)，陕西省地质环境监测总站!西安市陵园路中段19号，710068(索传郿)，陕西地质矿产勘查开发局第一水文地质工程地质队!西安市陵园路中段19号，710068(贾思吉) |
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| 摘 要： | 西安地裂缝近期超常活动，主要是长期过量抽汲深层承压水，引发地裂缝两侧地面不均匀沉降叠加到地裂缝正常活动过程中造成的。不均匀沉降量由地裂缝两侧土体松动程度不同造成的裂隙释水压密差异与两侧粘性土层厚度不同造成的孔隙释水压密差异共同构成。研究计算表明，地裂缝现今垂直活动量中，土体松动程度不同造成的裂隙释水压密量占有较大比例，而粘性土层厚度不同造成的孔隙释水压密差异所占有比例相对较小。
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| 关 键 词： | 地裂缝 超常活动 释水压密 松动破裂 量化分析 西安市 |
A QUANTITATIVE ANALYSIS OF RECENTLY EXTRAORDINARY MOVEMENT FACTORS OF GEOFRACTURES IN XI'AN |
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| Wang Deqian.A QUANTITATIVE ANALYSIS OF RECENTLY EXTRAORDINARY MOVEMENT FACTORS OF GEOFRACTURES IN XI'AN[J].Geology of Shaanxi,1996(1). |
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| Authors: | Wang Deqian |
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| Abstract: | The extraordinary movement of geofractures in Xi'an recently is mainly caused by continuously excessive pumping deep-seated confined water that resulted in uneven surface subsidence on the both sides of geofractures and then superimposed to the normal movement of the geofractures. Compressive differences of fissure water-release caused by different loosening level of soil mass and pore-water release by different thickness of viscous soil layers in the both sides of the geofractures constitute the amount of the uneven subsidence. Calculation and researches indicated that the fissure-water release compression caused by the different loosening degrees of soil mass takes more portion in the amount of vertical movement of the geofractures than the compression diffetences of the pore-water release by the different thickness of viscous soil layers in recent years. |
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| Keywords: | Geofracture Extraordinary movement Water release compression Loosening break Quantitative analysis |
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