圆锥齿切削破岩的切削力估算  

Estimation of Cutting Force of Rock Cutting with Conical Picks

作　　者：欧阳义平[1,2] 杨启[1,2] 

机构地区：[1]上海交通大学海洋工程国家重点实验室 [2]高新船舶与深海开发装备协同创新中心,上海200240

出　　处：《上海交通大学学报》2016年第1期35-40,46,共7页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金资助项目(51179104)

摘　　要：通过分析现有切削破岩峰值切削力计算公式和实验数据,进一步明确了切削力与岩石性质及切削厚度之间的关系,得到形式简单、适用性广、误差低的切削力估算公式.分析多组独立的、分别改变切削厚度和岩样进行实验得到的实验结果,并结合现有切削力计算理论拟合实验数据.结果发现：峰值切削力与切削厚度的幂次方成正比,幂指数在1.1~1.5,切削力与岩石的单轴抗压强度的关系最为密切.将研究得到的关系转化为数学计算公式,并通过实验对其进行验证,结果证实它比现有的计算公式精度更高,与实验值更吻合.A method or formula that can accurately estimate the peak cutting force of rock cutting with conical picks is quite valuable.In this paper,formulas with a simple form and wide application and low error were created by analyzing the existing formulas and experimental data,and the relationships between peak cutting force and rock properties and the cutting depth were clarified.The peak cutting force and cutting depth follow a power law with an exponent between 1.1and 1.5.The uniaxial compressive stress is the most important rock properties affecting the peak cutting force.The formula created in this paper was proved by experiments to be more accurate in estimating peak cutting forces compared to those existing formulas.

关 键 词：岩石切削 切削力 圆锥齿 切削厚度 岩石强度 切削实验 

分 类 号：TU45[建筑科学—岩土工程]