| Study of Water Flow in a Single Clay Crack |
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| 作者单位： | Ge Zhonghua，Nanjing University，Nanjing，Jiangsu Fan Bingheng，Feng Qiyan and Wang Yonghong China University of Mining and Technology，Xuzhou，Jiangsu Wang Xichuan |
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| 摘 要： | A model has been constructed to study water flow in a single clay crack, and a new concept of the critical rise rate of water level in the crack has been put forward. When the water level rises faster than this critical rate, the flow in a crack will increase, and vice versa. The flow in a crack is not in proportion to the water level. The maximium water flow in clay is 30-40 times smaller than that in a rock fissure under the same condition. In the process of water discharge, the flow in a crack will lessen gradually, and the crack will grow narrower by 3.0-4.0cm, with its depth reducing by over 50%.
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Study of Water Flow in a Single Clay Crack |
| |
| Authors: | Ge Zhonghu Nanjing University Nanjing Jiangsu Fan Bingheng Feng Qiyan and Wang Yonghong China University of Mining and Technology Xuzhou Jiangsu Wang Xichuan |
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| Abstract: | A model has been constructed to study water flow in a single clay crack, and a new concept of the critical rise rate of water level in the crack has been put forward. When the water level rises faster than this critical rate, the flow in a crack will increase, and vice versa. The flow in a crack is not in proportion to the water level. The maximium water flow in clay is 30-40 times smaller than that in a rock fissure under the same condition. In the process of water discharge, the flow in a crack will lessen gradually, and the crack will grow narrower by 3.0-4.0cm, with its depth reducing by over 50%. |
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| Keywords: | clay crack water flow critical rise rate of water level expansion and collapse |
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