Translated Titles

Preventing Water Condition of Coal Floor Reflected by audio-frequency Electrical Penetration


李冬林(Dong-Lin Li);姜振泉(Zhen-Quan Jiang);楊棟梁(Dong-Liang Yang)

Key Words

音頻電透視 ; 底板 ; 阻水 ; 鑽孔 ; 電法勘探 ; audio-frequency electrical penetration ; coal floor ; preventing water ; drill hole ; electrical prospecting



Volume or Term/Year and Month of Publication

27卷3期(2005 / 09 / 01)

Page #

68 - 71

Content Language


Chinese Abstract


English Abstract

By analysing the detection effect of thirty-meter-deep and fifty-meter-deep interface at 2702 working face of Yangcun mine, this paper studied the preventing water condition of coal floor by the audio-frequency electrical penetration (AFEP). According to the structure of terrane and exploring water result of coal floor disclosed by hydrology drill hole, it is demonstrated that there exists strong relationship among abnormal apparent conductivity, crack in rock stratum and the extent of filled water in crack, and there exists obvious abnormal apparent conductivities between crack in rock and the connection place of aquifer. The anslysis indicated that the detection by AFEP could accurately image terrane preventing water condition of the coal floor.

Topic Category 基礎與應用科學 > 地球科學與地質學