Development of a Continuous Drill and Blast Tunneling Concept, Phase II

Peterson, Carl R.; John A. Volpe National Transportation Systems Center, (U.S.)

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Development of a Continuous Drill and Blast Tunneling Concept, Phase II

1974-05-01
By Peterson, Carl R.

[PDF-3.29 MB]

English

Details You May Also Like

Details:

Creators:

Peterson, Carl R.
Corporate Creators:

John A. Volpe National Transportation Systems Center, (U.S.)
Corporate Contributors:

United States. Dept. of Transportation. Office of the Secretary
Subject/TRT Terms:

[+]

Alternatives Analysis Automatic Control Automation Construction Costs Drilling Economic Efficiency Equipment Field Tests Mucking Presplitting (Blasting) Shields (Tunnels) Spirals Spoil Tunneling Tunnels
Publication/ Report Number:

DOT-TSC-OST-74-10 ; PB-234 204

DOT-TSC-OST-74-10 ; PB-234 204 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Dept. of Transportation. Office of the Secretary
NTL Classification:

AGR-INFRASTRUCTURE-INFRASTRUCTURE;NTL-PUBLIC TRANSPORTATION-Rail Transit;
Abstract:

A spiral drilling pattern is described which offers high efficiency drill and blast tunnelling via frequent small blasts rather than occasional large blasts. Design work is presented for a machine which would stay at the face to provide essentially continuous drilling, loading, blasting and mucking. Field tests of the concept are described and photos of the spiral tunnel advance are provided. Successful testing of a suitable blast shield is also described and illustrated. Advance rates of four times conventional drill and blast practice are projected at about half the conventional cost per foot.
Format:

PDF
Collection(s):

Volpe Center
Main Document Checksum:

[+]

urn:sha256:aa8d577b4e1848a87e3789134bc3b6f441c43158ded2753d6cd59bb8dbba321d
Download URL:

https://rosap.ntl.bts.gov/view/dot/10944/dot_10944_DS1.pdf
File Type:

No Additional Files

More +

Development of a Continuous Drill and Blast Tunneling Concept, Phase II

Details:

Supporting Files

You May Also Like