24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

Westman, Erik C.

National Energy Technology Laboratory (U.S.)

关键词: Underground Mining;    01 Coal, Lignite, And Peat;    Boreholes;    Seismic Arrays;    Directional Drilling;   

DOI  :  10.2172/802183
RP-ID  :  FC26-01NT41063--06
RP-ID  :  FC26-01NT41063
RP-ID  :  802183

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method for clamping the sensor once it is emplaced in the borehole. If the sensors (geophones) are not adequately coupled to the surrounding rock mass, the resulting data will be of very poor quality. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.