岩石臂钩机开挖石方定额单价计算及经济性比较  

Quota Unit Price Calculation and Economic Comparison of Rock Arm Hook Machine Excavation Stone Square

作　　者：苏玮 SU Wei(China Railway Design Group Co.Ltd Institute of Engineering Economics,Tianjin 300308,China)

机构地区：[1]中国铁路设计集团有限公司总包事业部,天津300308

出　　处：《铁路工程技术与经济》2025年第1期52-56,共5页Railway Engineering Technology and Economy

基　　金：中国铁设A类课题《工程总承包模式下基于铁路工程可施工性的施工组织设计技术研究》(2023A0225304)。

摘　　要：当爆破开挖石方受到限制时,往往采用机械开挖石方。机械开挖石方除采用破碎锤外,近年来一种叫岩石臂钩机的新型石方开挖机械使用也越来越广泛。本文基于某铁路项目施工现场资料,计算了岩石臂钩机的机械台班单价,得到岩石臂钩机开挖石方的定额单价,并与既有的破碎锤开挖石方定额进行经济性比较,得到结论:岩石臂钩机的开挖石方效率更高,相较于破碎锤具有更好的经济性,并随着石方量的增加和集中,经济性愈发明显。When the explosion and the excavated stones are limited,mechanical excavation stones are often used.In addition to the crushing hammer of mechanical excavation,the use of new type of stone rectangular excavation machinery called rock arm in recent years has become more and more wide.Based on the construction site of a railway project,this article calculates the unit price of the mechanical platform of the rock arm hook machine,and obtained the quota price of the rock arm hook machine excavation.To conclude;The excavation of the rock arm is more efficient.Compared with the broken hammer,it has a better economy,and as the amount of stone squares increases and concentrates,the economy is becoming more obvious.

关 键 词：非爆破开挖 岩石臂 定额单价计算 经济性比较 

分 类 号：U215.1[交通运输工程—道路与铁道工程]