延庆台井下小极距地电阻率观测系统分析

doi:10.12196/j.issn.1000-3274.2020.04.012

Abstract

Abstract: With the rapid development of local economic construction, apparent resistivity observation at fixed stations has suffered serious disturbances. The traditional observation method of large electrode spacing faces difficulties to move forward under this situation. Therefore, apparent resistivity has to towards the well observation using short-electrode spacing. Compared with the surface large electrode spacing observation, the well observation using short-electrode spacing has two advantages. One is the much smaller covering area. The other is its well ability to inhibit the disturbance from surface environment changes. It can not only meet the needs of land usage from economic development, but also be better used in the earthquake prediction. In this paper, we will take an analysis on the feasibility of the short-electrode spacing well observation device at Yanqing station, including the combination of observation both in horizontal and vertical directions, pole arrangement, electrode manufacture and well depth, and the calculation of the device coefficients of both horizontal and vertical directions. The short-electrode spacing well observation is near full-space measurement of apparent resistivity. The knowledge and experiences from the construction help bring insight into the unknown difficulties of the well short-electrode spacing observation. And it also provides some references for the future apparent resistivity observation using the same type of device system.

Key words: Apparent Resistivity, Well measurement, Short-electrode spacing, Yanqing station

CLC Number:

P315.6

WANG Tong-li, CUI bo-wen, XU Hua-chao, HAN Kong-yan, QIAO Yong-jun, ZHU Shi-jun. Analysis of Short-electrode Spacing Well Apparent Resistivity Observation System in Yanqing Station[J]. EARTHQUAKE, 2020, 40(4): 156-168.

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Analysis of Short-electrode Spacing Well Apparent Resistivity Observation System in Yanqing Station

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