摘要
目前,国内外专家学者对锚杆的传力机制和受力特性方面做了大量的研究工作,但他们的研究主要集中在锚固段,而对于锚杆自由段的研究很少,特别是锚杆自由段地层(被加固体地层)的充分利用问题研究更少。在前人研究的基础上,笔者研究开发了可充分利用被加固体地层(自由段)孔壁粘结强度的递控式锚杆新结构。通过对全长粘结型锚杆和递控式锚杆相关室内试验和光弹试验对比分析,深入研究了递控式锚杆的受力特性和加固效果,以及孔壁粘结强度的分布规律。相关研究成果对实际工程,尤其是暴雨、地震等灾后病害边坡的抢险加固具有重要的理论和应用价值。
At present, domestic and foreign experts and scholars have done a lot of research on the force transmission mechanism and the mechanical characteristics of anchor, but their research is mainly concentrated on the anchoring section, and for the free segment of anchor research is seldom, especially research on making full use of the free segment of anchor formation （ with solid formation } is rarely. On the basis of previous studies, a new structure of delivery controlled anchor is researched and invented, which can take full advantage of the adhesive strength between mortar and soil or rock of reinforced ground. Through the contrast analysis of fully bonded anchor and delivery controlled anchor laboratory test and photoelastic test, so as to perform in-depth research on the mechanical characteristics and reinforcement effect of delivery controlled anchor and the bond strength distribution of hole wall. The relevant research results has significant theoretical and applied value on practical engineering, especially the rainstorm, earthquake and other disaster slope diseases rescue and reinforcement.
出处
《地下空间与工程学报》
CSCD
北大核心
2017年第3期624-630,共7页
Chinese Journal of Underground Space and Engineering
基金
科技部科研院所技术开发研究专项资金项目(2009EG123201)
关键词
递控式锚杆
室内试验
光弹试验
研究
delivery controlled anchor
laboratory test
photoelastie test
research
