摘要
激光作为一种新型破岩技术,在用于岩石隧道开挖技术的研究中已经取得了较大进展.本文在总结国内外激光破岩技术研究进展的基础之上,结合现有激光光束的特点,提出了适用于大断面脆性硬岩隧道的激光-喷水破岩方法,并通过数值模拟进一步分析了这种方法的破岩效果.该方法解决了激光光点小而隧道工程开挖断面大的矛盾,具有很强的实用性.
As a new rock spallation technology,the application of advanced high power laser to rock tunnel drilling has been significantly improved recently.The research advances of laser rock spallation technology at home and abroad are summarized.Based on our studies and laser beam characteristics,the authors propose a new rock breaking technology called ＂laser-water spray method＂ which can be used to large-scale hard rock tunnel drilling.It is solved that the scale problem between tiny laser beam point and large tunnel cross-section.The feasibility and effectiveness of the prposed method are proved further by numerical simulation.
出处
《三峡大学学报（自然科学版）》
CAS
2011年第3期55-58,共4页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然科学基金(50978251)
关键词
激光束
隧道
硬岩
喷水
大断面
数值模拟
laser beam
tunnel
hard rock
water spraying
large cross-section
numerical simulation
