Tools for optimizing rock mass grouting

Daniel Scott Kieffer, Trent Dreese, Jonas Weil, Johannes Kleberger

Research output: Contribution to journalArticle

Abstract

Optimization of rock grouting procedures during construction is necessitated when sparse data sets and incomplete geologic understanding form the basis of initial design. Relying on geologic investigation findings that often have limited budgets, initial designs typically consider data from only a small volume of the entire rock mass to be grouted. During construction, thousands of production boreholes may be drilled and grouted, and each of these boreholes has the potential to provide valuable information for modifying the injection materials and construction means/methods. Implementation of procedural changes is greatly facilitated by the ability to efficiently assemble, query, visualize and interpret vast amounts of 3D data in near real-time. This contribution summarizes the main targets of rock mass characterization in the context of grouting works, along with investigative tools that provide valuable information: (1) regarding the distribution and properties of in situ permeability features; (2) for modifying and optimizing grouting procedures; and (3) for verifying grouting results in situ. Three dimensional modeling approaches that are amenable to data visualization are reviewed, including the workflow for near real-time model updating as construction proceeds.

Original languageEnglish
Pages (from-to)121-128
Number of pages8
JournalGeomechanics and Tunnelling
Volume12
Issue number2
DOIs
Publication statusPublished - 1 Apr 2019

Keywords

  • 3D modeling
  • data visualization
  • Engineering geology
  • Grouting
  • monitoring
  • rock grouting
  • Rock mechanics

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering

Fields of Expertise

  • Sustainable Systems

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