平巷交岔点设计方法修改可行性探讨

An Approach to the feasibility of Modifying the Method for Drift Intersection Design

交岔点是指巷道相交或分岔的地点。龙首矿现有的平巷交岔点都是根据《采矿设计手册》中的交岔点设计计算及作图方法设计而成。这种设计的交岔点工程量大,交岔点处巷道断面大,受力状态不好,且有部分空间在实际应用中并无多大用处。本文根据实际设计及施工中存在的问题,以金川公司龙首矿1280中段41#交岔点为例,对交岔点的设计修改进行了分析和计算。

Intersection means the place where drifts intersect at or branch off.All the existing drift intersections in Dragon Head Mine were designed in the light of the calculation and drafting methods for intersection design in Mining Design Manual.The intersections of this design were more amount of work,larger section of drift at intersection place,not so good in loading state and partial space of them was less use in actual application.This paper,in the light of the problems existing in practical design and construction,conducted analysis and calulation to the modification of intersection design with No.41 intersection on 1280 level of Dragon Head Mine as an example.