...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Tunnelling and underground space technology >Classifications of properties influencing the drillability of rocks, based on the NTNU/SINTEF test method
【24h】

Classifications of properties influencing the drillability of rocks, based on the NTNU/SINTEF test method

机译：基于NTNU / SINTEF测试方法的影响岩石可钻性的特性分类

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

The demand for representative rock property parameters related to planning of underground excavations is increasing, as these parameters constitute fundamental input for obtaining the most reliable cost and time estimates. The Brittleness Value (S_(20)). Sievers' J-Value (SJ), Abrasion Value (AV) and Abrasion Value Cutter Steel (AVS) have been used extensively at NTNU/SINTEF since the 1960s in connection with drill ability testing of rock samples. Nearly 3200 samples originating from projects in 50 countries have so far been tested, and the method and associated prognosis model are internationally recognised for giving reliable estimates of time and cost for tunnelling. A classification of the NTNU/SINTEF drillability indices Drilling Rate Index™ (DRI), Bit Wear Index™ (BWI) and Cutter Life Index™ (CLI) has been available since 1998, but until now no official classification has been available for the individual tests used to calculate these indices. In this paper, classifications of the NTNU/SINTEF drillability test methods Brittleness Value (S_(20)), Sievers' J-Value (SJ), Abrasion Value (AV) and Abrasion Value Cutter Steel (AVS) tests will be described in detail. The presented classifications of the individual tests are based on statistical analysis and evaluations of the existing test results recorded in the NTNU/SINTEF database.
机译：与地下挖掘计划有关的代表性岩石特性参数的需求正在增加，因为这些参数构成了获取最可靠的成本和时间估算的基本输入。脆度值（S_（20））。自从1960年代以来，Sievers的J值（SJ），磨耗值（AV）和磨耗值刀具钢（AVS）在岩石样品的钻探能力测试中已广泛用于NTNU / SINTEF。迄今为止，已经对来自50个国家/地区的项目中的近3200个样本进行了测试，并且该方法和相关的预后模型已得到国际认可，可提供可靠的隧道时间和成本估算。自1998年以来，已经提供了NTNU / SINTEF可钻性指数的分类，即钻速指数（DRI），钻头磨损指数（BWI）和刀具寿命指数（CLI），但迄今为止，尚无针对该个人的正式分类用于计算这些指数的测试。在本文中，将详细描述NTNU / SINTEF可钻性测试方法的脆性值（S_（20）），Sievers的J值（SJ），磨耗值（AV）和磨耗值刀具钢（AVS）测试的分类。 。给出的各个测试的分类基于对NTNU / SINTEF数据库中记录的现有测试结果的统计分析和评估。

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