发明名称 |
EARTHQUAKE-GENERATING DEVICE OF UNDERGROUND ACOUSTIC WAVE, VIBRATION-RECEIVING DEVICE, EARTHQUAKE-GENERATING AND VIBRATION-RECEIVING METHOD, AND UNDERGROUND PROBING METHOD USING IT |
摘要 |
PROBLEM TO BE SOLVED: To propagate an energy efficiently in a required direction and to measure a distance between long-distance wells accurately even if a casing with a large energy loss is used by pressing an anvil for contacting wall surface being provided on the probing hole side wall of a vibrator in an oscillator to a probing hole wall with a clamping mechanism. SOLUTION: A pair of oscillators 32 is fixed into a well 12 by a hydraulic clamping mechanism 64 with a hydraulic source 68. The oscillator 32 accommodates a piezoelectric element lamination body 34 with axes in a plurality of horizontal directions and is arranged in the axial direction of the well 12. For example, a stainless anvil 42 is provided in front of a piezoelectric element lamination body 34. Then, one edge of the piezoelectric element lamination body 34 is pressed and fixed to a casing via the anvil 42 using a hydraulic piston, thus synthesizing vibration being generated due to the piezoelectric element lamination body 34 and propagating a sufficient energy efficiently to a ground layer even with a low frequency that cannot be outputted by a single piezoelectric element lamination body. |
申请公布号 |
JPH10319132(A) |
申请公布日期 |
1998.12.04 |
申请号 |
JP19980066369 |
申请日期 |
1998.03.17 |
申请人 |
YAMAMOTO ENG CORP;KAWASAKI STEEL CORP |
发明人 |
TOKUO YAMAMOTO;SAKAKIBARA JUNICHI |
分类号 |
G01V1/28;G01N29/00;G01V1/02;G01V1/40 |
主分类号 |
G01V1/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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