基于岩石破碎体积的滚刀效率评估模型

doi:10.12068/j.issn.1005-3026.2016.04.021

东北大学学报:自然科学版 ›› 2016, Vol. 37 ›› Issue (4): 554-558.DOI: 10.12068/j.issn.1005-3026.2016.04.021

基于岩石破碎体积的滚刀效率评估模型

王述红，王存根，赵贺兴，昝世明

(东北大学资源与土木工程学院，辽宁沈阳110819)

收稿日期:2015-02-12 修回日期:2015-02-12 出版日期:2016-04-15 发布日期:2016-04-05
通讯作者: 王述红
作者简介:王述红(1969-)，男，江苏泰州人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51474050，51179031，51074042)；国家高端外国专家项目(GDT20142100008，GDW20142100050)；地质灾害防治与地质环境保护国家重点实验室课题(SKLGP2012K009，SKLGP2014K011)；辽宁省高等学校优秀人才支持计划项目(LN2014006)

Cutter Efficiency Assessment Model Based on Broken Rock Volume

WANG Shu-hong，WANG Cun-gen，ZHAO He-xing，ZAN Shi-ming

School of Resource & Civil Engineering， Northeastern University， Shenyang 110819， China.

Received:2015-02-12 Revised:2015-02-12 Online:2016-04-15 Published:2016-04-05
Contact: WANG Shu-hong
About author:-
Supported by:
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摘要/Abstract

摘要： 结合岩石的不同破坏方式，如剪切破坏、张拉破坏、挤压破坏及多种破坏方式混合作用等，探讨了岩石破碎体积的计算方法.根据在滚刀作用下岩石以剪切破坏和张拉破坏为主的特性，提出以岩石破坏时裂纹长度、剪切面在岩石自由表面投影长度及滚刀刀刃宽度间的关系来识别岩石破坏方式，计算岩石破碎体积.利用CSM模型计算破岩比能，评估滚刀破岩效率.并通过实例对该方法进行了计算验证，结果表明该方法能够为TBM的性能预测和优化提供一定参考.

关键词: 破岩比能, CSM模型, 岩石破坏方式, 岩石破碎体积, 滚刀效率

Abstract: The calculation method of the rock volume broken by TBM disc cutters was discussed by considering different rock fragmentation modes， such as shear failure， tensile failure， extrusion failure and multi-failure modes. Due to the fact that shear failure and tensile failure are the dominate fracture modes of rock under the load of disc cutters， the quantitative relations among the crack length， the projected length of the shear fracture and the width of the cutter edge were used to identify the rock failure mode and calculate the volume of fragmentized rock. The rock crushing work ratio was calculated based on the CSM model to evaluate rock breaking efficiency of the disc cutters. This method was verified through an engineering project and results showed that this method could provide a reference for the performance prediction and optimization of TBM.

Key words: rock crushing work ratio, CSM model, rock fragmentation mode, volume of fragmentized rock, cutter efficiency

中图分类号:

U455.3

王述红，王存根，赵贺兴，昝世明. 基于岩石破碎体积的滚刀效率评估模型[J]. 东北大学学报:自然科学版, 2016, 37(4): 554-558.

WANG Shu-hong，WANG Cun-gen，ZHAO He-xing，ZAN Shi-ming. Cutter Efficiency Assessment Model Based on Broken Rock Volume[J]. Journal of Northeastern University Natural Science, 2016, 37(4): 554-558.

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基于岩石破碎体积的滚刀效率评估模型

Cutter Efficiency Assessment Model Based on Broken Rock Volume

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