首页> 外文学位 >Urban rock mechanics: Utilizing rock classification systems and intact rock properties to modify estimates for drilling and rock excavation production in urban construction.
【24h】

Urban rock mechanics: Utilizing rock classification systems and intact rock properties to modify estimates for drilling and rock excavation production in urban construction.

机译:城市岩石力学:利用岩石分类系统和完整的岩石属性来修改城市建设中钻探和岩石开挖生产的估算。

获取原文
获取原文并翻译 | 示例

摘要

Proper interpretation of existing field conditions in pre-construction is a vital, yet often under-utilized principle with respect to the construction efficiency of an urban project. The quality of information available to the contractor is directly proportional to the quality of investigation, data collection and data interpretation. Faulty prediction or misinterpretation of existing adverse conditions yield additional cost to all parties involved in construction. Further, the process of navigating changes to contract work due to unforeseen or misinterpreted conditions can greatly alter project cost, anticipated schedule, and finished project quality. Urban infrastructure and building development projects, in particular, involve heavy rock excavation. These, as the first construction activities on a project, often involve the bulk of the project's unforeseen conditions due to faulty prediction of rock behavior. Correlating rock mass categorization and accurate predictive modeling allows for better indication of a rock mass's resistance to excavation. Creating a theoretical correlation between existing geology and excavation methods yields lower overall cost to the project owner and flexibility to the contractor, allowing for higher profit margins.;This research has the purpose of correlating parallels between rock mass classification and excavation efficiency by utilizing standard empirical relationships found in rock support and rock fracture analyses and developing theoretical modifications to existing production and cost models for rock excavation. Further, opportunities provided by technological advances in investigation and monitoring are presented to encourage active project controls and method alteration in the presence of new information during construction. As a practical guide, increased knowledge leads to increased efficiency in excavation and construction. With urban cities experiencing increasing population densities, taller buildings, underground infrastructure modifications, and the potential for completely underground construction are becoming more prominent in urban construction. A common and practical guide for expected excavation rates helps to curb the unpredictability associated with rock excavation, allowing practical collaboration between property owners, designers, and constructors of projects.
机译:就城市项目的建设效率而言,对预施工中的现有野外条件进行正确的解释是至关重要的,但往往未得到充分利用。承包商可获得的信息质量与调查,数据收集和数据解释的质量成正比。错误的预测或对现有不利条件的误解会给参与施工的所有各方带来额外的成本。此外,由于不可预见或错误解释的条件而导致的对合同工作的更改导航的过程可能会大大改变项目成本,预期进度和完成的项目质量。特别是城市基础设施和建筑开发项目涉及重型岩石开挖。这些是项目的第一个建设活动,由于对岩石行为的预测错误,经常涉及项目不可预见的大部分情况。关联岩体分类和准确的预测模型可以更好地指示岩体的抗开挖性。在现有的地质和开挖方法之间建立理论上的联系会降低项目所有者的总体成本,并给承包商带来灵活性,从而提高利润率。这项研究的目的是通过利用标准经验将岩石质量分类与开挖效率之间的相似性进行关联岩石支持和岩石裂缝分析中发现的关系,并对岩石挖掘的现有生产和成本模型进行理论修改。此外,还提供了由调查和监视技术进步提供的机会,以鼓励在施工过程中在存在新信息的情况下进行积极的项目控制和方法变更。作为实用指南,增加的知识可以提高挖掘和施工的效率。随着城市人口密度的增加,高层建筑,地下基础设施的改造以及完全地下建筑的潜力在城市建设中变得越来越突出。一份有关预期开挖率的通用实用指南有助于遏制与岩石开挖有关的不可预测性,从而使业主,项目设计师和项目建设者之间可以进行实际协作。

著录项

  • 作者单位

    The Cooper Union for the Advancement of Science and Art.;

  • 授予单位 The Cooper Union for the Advancement of Science and Art.;
  • 学科 Engineering Geological.
  • 学位 M.E.
  • 年度 2011
  • 页码 339 p.
  • 总页数 339
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 11:45:26

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