AIR-POWERED 'GOPHER' SAVES UTILITY TIME, MONEY.

被引：0
|
作者：
Toler, Gerald
机构：
来源：
Pipe Line Industry | 1979年 / 50卷 / 02期
关键词：
CONSTRUCTION EQUIPMENT - GAS PIPELINES - TUNNELS AND TUNNELING - Missouri;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The author reports that Springfield, Mo. , City Utilities' Gas Department has found a missile-shaped underground piercing tool to be an effective and economical method of tunneling under road surfaces. The article describes the tool operation method, and discusses how it is being used.
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页码：55 / 56
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