【摘要】 预应力锚索(杆)在地表与地下工程建设中已得到广泛应用并且成效显著。任何预应力锚索(杆)加固工程都或多或少地存在群锚效应问题,因此研究预应力群锚加固效应具有重要的现实意义。在查阅大量国内文献的基础上,从现场测试、室内模型试验、数值计算以及理论分析4个方面较全面地概述了预应力锚索(杆)群锚效应的研究成果。群锚效应研究现状可以概括为群锚锚固效应、加固效果和设计方法的研究。许多学者对预应力锚索(杆)群锚效应的研究做出了重要的贡献,但是群锚加固机理研究仍然存有一些不足之处,还没有提升到系统、严密、公认的理论阐述程度,仍需进一步的分析与探讨。更多还原

【Abstract】 Prestressed cables(bolts) have been widely and effectively used in surface and underground construction engineering.Anyone of the prestressed cables(bolts) reinforcement projects exists more or less of anchorage effect groups. So,the research on the prestressed anchor reinforcement effect group has important practical significance.Based on checking a large number of domestic literatures,a more comprehensive overview of prestressed cable(pole) anchor effect group is gained in the firms of the field tests,the indoor model test,the numerical simulation and the theoretical analysis in this paper.The present research results of anchor effect group could be summed up as the anchor effect group,the strengthen effect and the design method.Many scholars have made important contributions to the research of anchor effect group of prestressed anchor cable(bolt).However,the reinforcement mechanism of anchor groups have still such shortages as no system,refined and wellaccepted theory,which need more further analysis and discussion.更多还原