Theoretical analysis on mobilization of aquifer particles induced by groundwater source heat pump pumping

被引：1
|
作者：
Wang S. [1 ]
Zhang X. [1 ]
Gao J. [1 ]
机构：
[1] College of Mechanical Engineering, Tongji University
来源：
Tongji Daxue Xuebao/Journal of Tongji University | 2010年 / 38卷 / 02期
关键词：
Aquifer thickness; Borehole diameter; Groundwater source heat pump; Particle mobilization;
D O I：
10.3969/j.issn.0253-374x.2010.02.021
中图分类号：
学科分类号：
摘要：
The mobilization theory of aquifer particles induced by groundwater source heat pump(GWSHP) pumping is theoretically studied, including analysis of forces working on the particles and the releasing mechanism. A case study, a typical aquifer in Tianjin, is carried out. Such parameters as water discharge, aquifer thickness and borehole diameter are analyzed based on the calculated values of critical hydraulic gradient and the critical seepage velocity. The present studies show that the particle mobilization is directly influenced by the aquifer thickness and the borehole diameter under the same water discharge, which provids a theoretical basis for solving the problems of borehole collapse and particle regrouping in the GWSHP's long-term operation.
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收藏
页码：273 / 277
页数：4
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