Undisturbed Strata Succession Sampling Technology and the Engineering Geological Characteristics of an Atoll in the Southern South China Sea
Undisturbed Strata Succession Sampling Technology and the Engineering Geological Characteristics of an Atoll in the Southern South China Sea
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南海南部某环礁原状地层连续取样技术及工程地质特征
DOI：
10.1080/10641190902967168
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发表时间：
2009-10
期刊：
影响因子：
--
通讯作者：
XIN-ZHI WANG
中科院分区：
文献类型：
--
作者：
KE-FU YU;CHAO YANG;QING-SHAN MENG;MING-JIAN HU;REN WANG;XIN-ZHI WANG
珊瑚礁钙质沉积物是一类特殊的岩土物质，具有代表性的地质构造和环境特征。它广泛分布在热带海洋的浅水地区；因此，用于珊瑚礁钙质沉积物工程地质研究的勘探仪器和技术与陆地或深海勘探有很大的不同。从全新世松散地层中获取未受扰动的珊瑚礁岩心一直是海洋地质与环境调查领域的一个关键问题。在南海永暑礁（9°32 ~ 9°42 N, 112°52 ~ 113°04 E）的礁滩（水深0.5 ~ 2 m）和封闭泻湖（水深2 ~ 12 m）上设计了一种新型的浮式钻井平台，并配有钻机，成功地获得了不受干扰的岩心。通过对岩心的详细观测和工程地质分析，将永暑礁划分为前缘、礁滩（包括外礁滩、中礁滩和内礁滩）和礁湖三个礁滩工程地质带。沉积物在地层中可分为细砂、中砂、粗砂、砾石和弱胶结礁灰岩。
Coral reef calcareous sediment, a special category of rock-soil material, has representative geological structure and environmental characteristics. It is widely distributed in shallow areas of the tropical ocean; therefore the exploration instruments and technologies for engineering geology studies of coral reef calcareous sediments are very different from those used in land or deep-sea. Obtaining undisturbed cores from the Holocene unconsolidated stratum of coral reefs has been a key problem in the field of marine geology and environment surveying. The authors have designed a novel floating drilling platform equipped with a drilling machine, and successfully achieved undisturbed cores from both reef flats (with water depth 0.5 to 2 m) and a enclosed lagoon (with water depth 2–12 m) of Yongshu Reef (9°32–9°42 N, 112°52–113°04 E), southern South China Sea. Based on the detailed observation on the cores and the analysis from engineering geology, Yongshu Reef was split into reef three engineering geological zones: leading edge, reef flat (including outer reef flat, middle reef flat and inner reef flat) and lagoon. The sediments are classified in the stratum as fine sand, medium sand, coarse sand, gravel and weak-cemented reef limestone.
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影响因子：
16.8
作者：
T. Hughes
通讯作者：
T. Hughes
影响因子：
10.1
作者：
B. Rosen
通讯作者：
B. Rosen
影响因子：
2
作者：
J. Hagadorn;J. Flocks;L. Stott;D. Gorsline
通讯作者：
J. Hagadorn;J. Flocks;L. Stott;D. Gorsline
影响因子：
4
作者：
Kefu Yu;Jian-xin Zhao;Pinxian Wang;Q. Shi;Meng Qingshan;K. Collerson;Tung-sheng Liu
通讯作者：
Kefu Yu;Jian-xin Zhao;Pinxian Wang;Q. Shi;Meng Qingshan;K. Collerson;Tung-sheng Liu
影响因子：
2.8
作者：
J. Hubbard
通讯作者：
J. Hubbard