文章摘要信息 关键词 ： 煤体；瓦斯；运移；电位信号 [gap=1271]Keywords : coal;gas;flow;electric potential signal
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The electric potential signal was experimentally studied during fracture of concrete sample.
实验研究了混凝土试件断裂破坏过程的电位信号。
Electric potential signal is closely related to the fracture of concrete, which can provide precursory information for it.
电位信号与试件破裂过程密切相关，可以为破裂提供前兆信息。
The electric potential signal shows a continuously increasing trend in the fracture process of concrete, and there is large increasing in AE rate and electric potential in the main fracture.
在混凝土破裂过程中，电位信号呈连续增大趋势，在主破坏时声发射率和电位信号均有大幅度增加。
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