National Research Council. 1968. Rapid excavation: significance, needs, opportunities.. Washington, DC: The National Academies Press. https://doi.org/10.17226/26761.
Chapters | skim | |
---|---|---|
Front Matter | i-vi | |
Introduction | 1-3 | |
Conclusions and Recommendations | 4-6 | |
Significance | 7-15 | |
Current Constraints on Increased Underground-excavation Productivity | 16-18 | |
Residual Demands for Underground Excavation | 19-25 | |
Needs | 26-37 | |
Research Program | 38-42 | |
Opportunities | 43-46 |
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