巷道掘进无测量仪器定测量线点时的拐弦方法

Turning String Method of Deciding Line Without Metering Equipment During Tunneling

介绍了无测量线点时,巷道掘进如何拐弦的几种方法,使用该拐弦时可以把抽象的思维变为简单的距离与角度的测量,该方法操作简便实用,很适于无测量线时的应急,具有较强的实用价值。

The article introduces several methods of how to turn string without metering line during tunneling. These methods can turn the string from the abstract thought to the simple survey of distance and angle. The methods have characteristics of easy operation and practical use and suitable for without survey line, which have strong practical value.