基于应力波的岩土工程预应力锚杆锚固支护方法  

A Method for Anchoring and Supporting Prestressed Anchor Rods in Geotechnical Engineering Based on Stress Waves

作　　者：赵瑾瑛 ZHAO Jin-ying(China Energy Engineering Group Shanxi Electric Power Engineering Co.,Ltd.,Taiyuan 030000,China;China Energy Engineering Group Guangdong Electric Power Engineering Bureau Co.,Ltd.,Guangzhou 510000,China)

机构地区：[1]中国能源建设集团山西省电力勘测设计院有限公司,太原030000 [2]中国能源建设集团广东电力工程局有限公司,广州510000

出　　处：《价值工程》2023年第35期115-117,共3页Value Engineering

摘　　要：研究围绕基于应力波的岩土工程预应力锚杆锚固支护方法展开,旨在提高锚杆支护的稳定性。通过理论分析和实验研究,研究提出了这一新的支护方法,并通过应力和应变分析比较了三种锚固方式的优劣,从而得出了锚杆支护的原理,并选择了加长锚固或全长锚固方式。研究以山西某煤岩工程为实践背景,提出了具体的节理围岩巷道支护方式和参数设定。实验数据分析发现,相对于原支护方案,新的支护方法使得顶、底板的相对位移和实煤体的变形量分别降低了56.5%和55.43%。结果表明,基于应力波的预应力锚杆锚固支护方法在提高岩土工程的稳定性和承载力、控制岩土体的变形和破坏方面具有显著优势,为岩土工程的安全提供了更为可靠的保障。The research revolves around the method of prestressed anchor rod anchoring support in geotechnical engineering based on stress waves,aiming to improve the stability of anchor rod support.Through theoretical analysis and experimental research,this new support method was proposed,and the advantages and disadvantages of three anchoring methods were compared through stress and strain analysis.The principle of anchor rod support was obtained,and either extended anchoring or full length anchoring methods were selected.The study takes a coal and rock engineering project in Shanxi as the practical background and proposes specific support methods and parameter settings for jointed surrounding rock tunnels.Experimental data analysis found that compared to the original support scheme,the new support method reduced the relative displacement of the top and bottom plates and the deformation of the solid coal body by 56.5%and 55.43%,respectively.The results indicate that the prestressed anchor rod anchoring support method based on stress waves has significant advantages in improving the stability and bearing capacity of geotechnical engineering,controlling the deformation and failure of rock and soil,and providing a more reliable guarantee for the safety of geotechnical engineering.

关 键 词：应力波 预应力 锚杆应力 节理岩层 锚固支护 

分 类 号：TU753[建筑科学—建筑技术科学]