• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zeitschrift fur Geomorphologie. Supplementband. Supplementband. Supplementband >Predicting rates of shore platform downwearing from rock geotechnical properties and laboratory simulation of weathering and erosion processes
【24h】

Predicting rates of shore platform downwearing from rock geotechnical properties and laboratory simulation of weathering and erosion processes

机译：从岩石岩土特性和风化和侵蚀过程的实验室模拟预测海岸平台的磨损率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Laboratory simulations of inter-tidal weathering and erosion processes were conducted to examine the relative resistance of a range of shore platform rock types and to assess the potential for predicting platform downwearing rates. Wetting and drying, frost weathering and abrasion experiments were conducted using a standard sea water solution. Selective field and laboratory rock strength tests and laboratory measurement of sea water absorption were carried out. With a total of 40 cycles of wetting-drying, a Mallorcan sandy limestone and French chalk showed greatest weight loss. After 40 cycles of frost weathering, French and British chalks recorded most breakdown. In the abrasion experiment, these chalks showed greatest weight loss after a total of 10 hours of tumbling. They also recorded the lowest strength and rebound readings and the highest sea water absorption. Conversely, Swedish dolerite, gneiss and granite were least susceptible to weathering and abrasion, recorded the lowest water absorption and intermediate to high strength and rebound values.The laboratory-measured geotechnical properties and abrasion rates correlate with field-measured downwearing rates. It is proposed that, with further testing, laboratory measured parameters may be used to predict platform downwearing rates.
机译：进行了潮间风化和侵蚀过程的实验室模拟，以检查各种岸台岩石类型的相对阻力，并评估预测平台磨损率的潜力。使用标准海水溶液进行了润湿和干燥，霜冻风化和磨损实验。进行了选择性场和实验室岩石强度测试以及海水吸收的实验室测量。总共进行了40个润湿干燥循环，马洛卡（Mallorcan）沙质石灰石和法国白垩的重量损失最大。经过40次霜冻风化后，法国和英国的粉笔记录了最多的故障。在磨耗实验中，这些白垩在翻滚总共10小时后显示出最大的体重减轻。他们还记录了最低的强度和反弹读数以及最高的海水吸收率。相反，瑞典的钙铝石，片麻岩和花岗岩最不易受风化和磨损，吸水率最低，强度和回弹值中等至高，实验室测量的岩土性能和磨损率与现场测量的磨损率相关。建议通过进一步测试，实验室测得的参数可用于预测平台的磨损率。

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