| 同心式射流泵在深层井点降水中的应用 |
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| 引用本文： | 卜长根,孙孝庆,刘国平.同心式射流泵在深层井点降水中的应用[J].水文地质工程地质,2002,29(1):52-53,67. |
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| 作者姓名： | 卜长根 孙孝庆 刘国平 |
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| 作者单位： | 1. 中国地质大学工程技术学院,北京,100083
2. 中国地质工程集团公司,100080 |
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| 摘 要： | 本文比较了几种深层干扰降水的特点，就国内深层降水设备存在的问题，有针对地研制了同心式射流泵井点降水系统，该系统利用喷射泵真空和排出口压力提升地下水，其降水深度大，集水效果好，出水量稳定，速度较快，设备结构简单可靠，解决了深大基坑砂、粘土地层中干扰降水的问题。
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| 关 键 词： | 井点降水 深基坑 喷射泵 同心式射流泵 集水效果 |
| 文章编号： | 1000-3665(2002)01-0052-03 |
Application of the single pipe ejector system for deep foundation dewatering |
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| PU Chang-gen et al..Application of the single pipe ejector system for deep foundation dewatering[J].Hydrogeology and Engineering Geology,2002,29(1):52-53,67. |
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| Authors: | PU Chang-gen |
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| Institution: | PU Chang-gen et al. |
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| Abstract: | Several pre drainage methods for deep foundation are compared. To solve the problem of the deep foundation dewatering with fine sand and clay, single pipe ejector system is designed successfully, on which the high total discharge head is obtained. As shown in practical use, the single pipe ejector system proceeds the characteristics of the deep dewatering depth, the good effectiveness of collecting ground water, steady yield, the reliability of structure and ease to use. |
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| Keywords: | well point dewatering deep foundation pit ejector pump annular single pipe |
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