| 基于点荷载试验的煤体抗拉强度测试研究 |
| |
| 引用本文： | 翟晓荣, 吴基文, 沈书豪. 2014: 基于点荷载试验的煤体抗拉强度测试研究. 工程地质学报, 22(s1): 7-10. DOI: 10.13544/j.cnki.jeg.2014.s1.002 |
| |
| 作者姓名： | 翟晓荣 吴基文 沈书豪 |
| |
| 作者单位： | 1.安徽理工大学地球与环境学院 淮南 232001 |
| |
| 基金项目： | 国家自然科学基金项目（41272278）和高等学校博士学科点专项科研基金（20123415110002）资助 |
| |
| 摘 要： | 采用点荷载试验对所采煤样抗拉强度进行了室内测定。在煤体波速原位测试及煤岩波速的实验室测定的基础上，对煤体完整性系数进行了计算，并以准煤体强度理论为依据，利用点荷载强度与抗拉强度之间的关系，计算出煤体抗拉强度。结果表明：煤体完整性系数为0.47，抗拉强度值为0.08MPa，研究结果可为地下工程中煤体抗拉强度指标提供科学依据。
|
| 关 键 词： | 点荷载试验 煤 抗拉强度 波速测试 完整性系数 |
| 收稿时间： | 2014-05-15 |
| 修稿时间： | 2014-06-30 |
EXPERIMENTAL STUDY ON CALCULATION OF THE TENSILE STRENGTH OF COAL BASED ON THE POINT LOAD TEST |
| |
| Zhai Xiaorong, Wu Jiwen, Shen Shuhao. 2014: EXPERIMENTAL STUDY ON CALCULATION OF THE TENSILE STRENGTH OF COAL BASED ON THE POINT LOAD TEST. JOURNAL OF ENGINEERING GEOLOGY, 22(s1): 7-10. DOI: 10.13544/j.cnki.jeg.2014.s1.002 |
| |
| Authors: | Zhai Xiaorong Wu Jiwen Shen Shuhao |
| |
| Affiliation: | 1.School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001 |
| |
| Abstract: | The point load test was used for the tensile strength measurement of coal samples. Integrity coefficient of the coal was calculated based on the wave velocity tests of coal seam in situ and coal samples. Finally, the tensile strength of coal seam was calculated by the transformation relationship between point load strength and tensile strength according to the quasi coal strength theory. The results show the integrity coefficient of coal is 0.47 and the tensile strength is 0.08MPa. The research results can provide scientific basis for underground engineering application of coal tensile strength index. |
| |
| Keywords: | Point load test Coal Tensile strength Wave velocity tests Integrity coefficient |
|
| 点击此处可从《工程地质学报》浏览原始摘要信息 |
|
点击此处可从《工程地质学报》下载全文 |
