| 水压致裂法测定岩石的断裂韧性 |
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| 引用本文： | 陈治喜； 陈 勉； 金 衍； 黄荣樽. 水压致裂法测定岩石的断裂韧性[J]. 岩石力学与工程学报, 1997, 16(1): 59-059 |
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| 作者姓名： | 陈治喜； 陈 勉； 金 衍； 黄荣樽 |
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| 作者单位： | University of Petroleum，Beijing 102200 |
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| 摘 要： | 提出了一个利用液体压力对空心厚壁圆柱形岩样进行压裂而测定岩石断裂韧性的简单方法，在自行设计加工的岩样制备和断裂韧性测试装置上，对部分砂、页岩试样进行了测试。通过对岩样破裂面和声发射曲线的分析，对水力压裂过程中岩石破裂的有关机理进行了探讨。
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| 关 键 词： | 关键词 断裂韧性 水力压裂 声发射 |
| 收稿时间： | 1995-02-08 |
| 修稿时间： | 1995-05-22 |
DETERMINATION OF ROCK FRACTURE TOUGHNESS WITH HYDRAULIC FRACTURING METHOD |
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| Chen Zhixi Chen Mian Jin Yan Huang Rongzun. DETERMINATION OF ROCK FRACTURE TOUGHNESS WITH HYDRAULIC FRACTURING METHOD[J]. Chinese Journal of Rock Mechanics and Engineering, 1997, 16(1): 59-059 |
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| Authors: | Chen Zhixi Chen Mian Jin Yan Huang Rongzun |
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| Abstract: | Fracture toughness is a very important parameter for studying the geometry of hydraulic fractures. In this paper, a simple hydraulic fracturing technique is proposed for determining the fracture toughness of rock, which consists of fracturing prenotched thick wall cylinders with internal hydraulic pressure. A preliminary set of experiments has been performed on sandstone and shale. The mechanism of hydraulic fracturing is discussed by analyzing the fracture surface and acoustic emission activity. |
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| Keywords: | fracture toughness hydraulic fracturing acoustic emission |
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