摘要
随着露天矿山精准台阶爆破技术的不断发展,传统露天台阶爆破施工中的布孔方法在布孔精度、施工效率等方面的弊端日益突出。为提高布孔精度和布孔施工效率,将炮孔布置理论与RTK线放样定位技术相结合,根据设计的底盘抵抗线、孔距和排距数值,利用RTK线放样施工方法,首先测定底盘抵抗线的大小、确定第一排孔的线坐标及布置方向,然后通过设置RTK手簿中里程、里程增量、偏距、偏距方向等参数进行每排孔的布孔施工,最终实现单人高精度高效率布孔施工同时记录炮孔位置、测定设计孔深。详细介绍了RTK线放样布孔法的施工方法,并将其应用到实际施工中,实施效果良好。该方法的应用为露天台阶爆破布孔施工精准化、规范化及高效化提供了新思路,在节省人力的同时,提高了施工效率和施工精度,为露天矿山爆破降低了成本。
With the continuous development of precision step blasting technology in open pit mines,the disadvantages of traditional layout methods in layout precision and construction efficiency are becoming more and more prominent.In order to improve the precision and efficiency of hole layout,the theory of hole layout is combined with RTK line lofting technology.According to the designed values of the chassis resistance line,hole spacing and row spacing,the RTK line lofting method is used to measure the size of the chassis resistance line and determine the line coordinates and layout direction of the first row of holes.Then,each row of holes can be laid out for construction by setting parameters such as mileage,mileage increment,deviation and deviation direction in the RTK manual book.Finally,a single person can achieve high-precision and high-efficiency hole laying while recording the hole position and measuring the design hole depth.This paper introduces a construction method of RTK line lofting and hole layout in detail,applies it to the actual construction,and gets a good effect.Applying this method provides a new idea for the precision,standardization and high efficiency of the open-pit bench blasting construction,improves the construction efficiency and precision while saving workforce,and reduces the cost of open-pit blasting.
作者
颜世留
陈运成
朱伟
李铁龙
YAN Shi-liu;CHEN Yun-cheng;ZHU Wei;LI Tie-long(Hongda Blasting Engineering Group Co.,Ltd.,Guangzhou 510000,China)
出处
《爆破》
CSCD
北大核心
2024年第4期116-121,共6页
Blasting
关键词
台阶爆破
布孔
RTK
线放样
bench blasting
borehole arrangement
RTK
line lofting
