| 深井降水对支护结构土压力的影响 |
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| 引用本文： | 王翠英,张鸿昌,张文巾.深井降水对支护结构土压力的影响[J].岩土力学,2004,25(11):1845-1848. |
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| 作者姓名： | 王翠英 张鸿昌 张文巾 |
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| 作者单位： | 1.中国地质大学 工程学院，湖北 武汉 430074；2.湖北工业大学，湖北 武汉 430000； 3.中南勘察设计院，湖北 武汉 430071；4.总参工程兵科研三所 五室，湖北 武汉 430010 |
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| 摘 要： | 在目前深基坑开挖过程中，一般要采用降水措施以保证基坑干燥，便于施工。基坑降水会引起基坑内外地下水渗流，地下水状态随之改变，同时也会引起土的物理、力学性质的改变，直接影响作用于支护结构上土压力的大小。传统的水土合算和水土分算是两种极端的处理方式，在基坑降水过程中，根据具体土层选择适当的降水模型，并考虑渗流的影响，对挡土结构的设计具有重要意义。
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| 关 键 词： | 渗流 降水 土压力 有效应力 |
| 文章编号： | 1000-7598-(2004)11-1845-04 |
| 收稿时间： | 2004-06-04 |
| 修稿时间： | 2004年6月4日 |
The effects of deep well dewatering on the earth pressure of supporting structure |
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| WANG Cui-ying,ZHANG Hong-chang,ZHANG Wen-jin.The effects of deep well dewatering on the earth pressure of supporting structure[J].Rock and Soil Mechanics,2004,25(11):1845-1848. |
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| Authors: | WANG Cui-ying ZHANG Hong-chang ZHANG Wen-jin |
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| Institution: | 1.Engineering Faculty, China University Of Geosciences, Wuhan 430074, China; 2. Huibei University of Technology Wuhan, 430000, China; 3.Zhongnan Prospecting Institute, Wuhan 430071, China; 4. The 3rd Engineering Army Institute, General Staff, PLA., Wuhan 430010, China. |
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| Abstract: | During excavation of deep foundation pit, a lot of dewatering measures are adopted to ensure that the foundation pit is dry and the construction is convenient. The dewatering of foundation pit can cause the seepage outside and inside the foundation pit, and result in the changes of groundwater, earth pressure and mechanical properties, and directly affect the earth pressure acting on supporting structures. There are two kinds of method to calculate earth pressure, respectively, the calculation of separating water and soil from earth pressure and the calculation of mixing water and soil into earth pressure. Therefore, It is very important that the proper dewatering model should be selected and the seepage is considered when the supporting structure is designed in the process of dewatering of foundation pit |
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| Keywords: | seepage dewatering earth pressure |
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