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| THE RESULT OF A PS WAVES TEST IN A MORE THAN 400 M DEEP WELL |
| JIANG Chuan-lin, JIANG Chuan-zhi, LU Xin-fang |
| Geophysical Exploration Party, Henan Bureau of Geology for Coal Field, Zhengzhou 450009, China |
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Abstract This paper describes the result of a test in a more than 400 m deep well. Practice shows that, with the adoption of some measures, the PS wave of single drillhole layer-testing method can break through the limit of one hundred meters. This technique can therefore be used in more extensive application fields.
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Received: 14 September 2004
Published: 24 April 2005
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