• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Experimental and Theoretical Studies of Near-Bottom Sediments to Determine Geoacoustic and Geotechnical Properties
【24h】

Experimental and Theoretical Studies of Near-Bottom Sediments to Determine Geoacoustic and Geotechnical Properties

机译：近底沉积物确定地质声学和岩土工程性质的实验和理论研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In a program designed to develop methods for predicting and measuring certain geoacoustic and geotechnical properties of the sediments immediately beneath the sea floor, several new tools were developed to measure in situ properties such as undrained shear strength, shear wave velocity and angle of internal friction. These tools include a motorized penetrometer designed to measure quasi-static cone penetration resistance up to depths of two meters into the bottom, a Love wave source and linear receiving array to measure shear wave velocity, and a 22-caliber source and array designed to generate Scholte waves with higher dominant frequency than conventional airgun sources. Using data obtained with this equipment as well as from other CBBL investigators, dynamic shear moduli derived from measurements of shear wave velocity were correlated with cone penetration resistance and the results were found to be consistent with results obtained by geotechnical engineers for many different clay soils. This result suggests that their regression equation may also be used for marine sediments of the type tested in the current program. The Biot-Stoll model was also used to establish a baseline geoacoustic model for the soft, gassy soils of Eckernfoerde Bay which constitutes the starting point for studies of the perturbing effects of free gas bubbles and other scatterers in the sediment.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号