基于钻孔摄像技术的珊瑚礁完整性评价分析
发布时间:2018-01-06 20:08
本文关键词:基于钻孔摄像技术的珊瑚礁完整性评价分析 出处:《中南大学学报(自然科学版)》2016年05期 论文类型:期刊论文
【摘要】:在西沙琛航岛地质调查中,应用数字钻孔摄像技术,通过引入RMDI法开展对珊瑚礁完整性的分析研究,结合岩体分级标准,构建珊瑚礁完整性指数与珊瑚礁完整程度的对应关系,实现针对珊瑚礁完整性的工程评价。通过对CK1孔和CK2孔的摄像勘察和统计分析,按照基于RMDI法的珊瑚礁完整程度分级标准,对两孔进行珊瑚礁完整性评价,与实体岩芯保持一致,并估算出两孔之间珊瑚礁的岩体完整程度。研究结果表明:在珊瑚礁完整性评价中,按珊瑚礁完整性指数构建的分级标准是可行的;按RMDI法建立的珊瑚礁完整程度是准确的;针对珊瑚礁的钻孔摄像勘察和统计分析具有重要意义。
[Abstract]:In the geological survey of Xisha Chen Island, digital borehole camera technique was used to analyze the integrity of coral reef by introducing RMDI method, and combined with rock mass classification standard. The relationship between the integrity index of coral reef and the integrity degree of coral reef was established to realize the engineering evaluation of the integrity of coral reef. The camera survey and statistical analysis of CK1 hole and CK2 hole were carried out. According to the classification standard of coral reef integrity based on RMDI method, the coral reef integrity evaluation of the two holes is consistent with the solid core. The results show that the classification criteria based on the coral reef integrity index are feasible in coral reef integrity evaluation. The integrity of coral reefs established by RMDI method is accurate. Borehole camera survey and statistical analysis of coral reefs are of great significance.
【作者单位】: 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室;
【基金】:国家重点基础研究发展计划(973计划)项目(2013CB956104) 国家科技基础工作专项(2012FY112400)~~
【分类号】:P737.2;P714.7
【正文快照】: 造礁石珊瑚属能分泌碳酸钙形成骨骼和外壳、行群体固着生活的腔肠动物的石珊瑚目Scleractinia[1]。珊瑚礁是由造礁石珊瑚群体死后遗骸经过破坏、搬运、堆积及胶结等作用而形成的特殊岩土体[2]。珊瑚从古生代初期开始繁衍,一直延续至今。珊瑚属种多,演化快,常成为划分地层的依,
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