Improving Site Characterization for Rock Dredging using a Drilling Parameter Recorder and the Point Load Test

Abstract

The approach to the work was to test and further develop two existing technologies; First, the concept of instrumenting an exploration drill rig and relating its operational parameters (such as bit pressure, rotation rate, advance rate, etc.) to characteristics of the rock being drilled was investigated. The applicability of such a system for drilling typical coastal deposits was to be investigated and demonstrated. Second, the point load test for rock was investigated. This test method had produced a proven field strength index for hard rock, which could be correlated with unconfined compressive strength. A comparative testing program was conducted to demonstrate the usefulness of the point load index test to obtain a field strength index for dredging

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1994
Accession Number
ADA286725

Entities

People

  • Hardy J. Smith

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Army Corps Of Engineers
  • Classification
  • Compressive Strength
  • Databases
  • Engineers
  • Excavation
  • Failure Mode And Effect Analysis
  • Materials
  • Materials Testing
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Pressure Transducers
  • Rock Mechanics
  • Standards
  • Test Methods
  • Tunneling

Readers

  • Aerospace Test and Evaluation
  • Mechanical Engineering/Mechanics of Materials.
  • Systems Analysis and Design