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某地岩体声波测试及其成果分析
发表时间：2009-05-15 浏览量：1772 下载量：826
| 全部作者： | 张泽林，刘高 |
| 作者单位： | 兰州大学土木工程与力学学院 |
| 摘 要： | 声波探测是通过探测声波在岩体内的传播特征来研究岩体性质和完整性的一种物探方法。基于对某地岩体进行的声波测试，采用干式单孔一发双收岩体声波测试法对某地坝址区岩体进行了现场波速测试并获得一些数据作理论分析，以该地岩体声波探测为例，根据声波测试结果分析其裂隙系数、完整系数和风化系数，并划分风化带，评价该地岩体质量，结果显示：该地岩体质量等级较好，其力学属性应属于Ⅲ级以上或Ⅱ级工程岩体，即现在开挖形成的建基面是能够满足双曲薄拱坝的建坝要求的。 |
| 关 键 词： | 地质工程；声波测试；纵波速；岩体质量；完整性系数；裂隙系数 |
| Title： | Rock mass sound wave test and result analysis |
| Author： | ZHANG Zelin, LIU Gao |
| Organization： | School of Civil Engineering and Mechanics, Lanzhou University |
| Abstract： | Acousitic detection is a geophysical prospecting method for studying characteristics and integrity of rock mass via detecting sound wave transmission characteristics in the rock mass. Based on the sound wave test of the rock mass of a certain place, the paper adopts dry-type single-hole one-shot double-reception rock mass sound wave test method to carry out field test and obtain data for theoretical analysis. The paper takes the rock mass sound wave test of the place as example, analyzes the crevasse coefficient, integrity coefficient and weathering coefficient, divides weathered zones, and evaluates the rock mass quality. The results showed that the rock mass had high quality with mechanical property of Ⅲ category or above, or it belonged to Ⅱ engineering rock mass, namely presently excavated foundation plane was capable of meeting the building demand of double-curvature thin-arch dam. |
| Key words： | geology engineering; sound wave test; vertical velocity; rock mass quality; integrity coefficient; crevasse coefficient |
| 发表期数： | 2009年5月第9期 |
| 引用格式： | 张泽林，刘高. 某地岩体声波测试及其成果分析[J]. 中国科技论文在线精品论文，2009，2（9）：975-980. |
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