囊式扩大头锚索在航道边坡整治中的应用研究  

Research on Application of Bladder Expansion Anchor Cable in a Channel Slope Regulation Project

作　　者：孙萍[1] 缪海林 唐雨卉 毛昆明[1] 燕立群 SUN Ping;MIAO Hai-lin;TANG Yu-hui;MAO Kun-ming;YAN Li-qun(Jinling Institute of Technology,Nanjing 211169,China;Wanjiang University of Technology,Maanshan 243031,China;Jiangsu Yuanzhuo Underground Engineering Technology Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]金陵科技学院建筑工程学院,江苏南京211169 [2]皖江工学院水利工程学院,安徽马鞍山243031 [3]江苏远卓地下工程技术有限公司,江苏南京211100

出　　处：《金陵科技学院学报》2021年第3期66-72,共7页Journal of Jinling Institute of Technology

基　　金：国家自然科学基金面上项目(51608267);金陵科技学院高层次人才引进启动基金项目(jit-rcyj-201501);金陵科技学院横向课题资助项目(jit-h-2019-026)。

摘　　要：以南京市秦淮河航道边坡整治工程为背景,选择某一航段左右两岸分别进行普通锚杆和囊式扩大头锚索荷载-位移关系试验。现场试验结果表明,在相同长度、相同规格条件下,囊式扩大头锚索承载力明显更大;在相同设计承载力条件下,囊式扩大头锚索长度明显更小。数值模拟结果显示,应用囊式扩大头锚索可以明显减少桩顶水平方向的位移。得出结论为:应用囊式扩大头锚索替代普通锚杆,能有效提高承载力,控制变形,保证结构安全,具有显著的经济与社会效益。Taking the Qinhuai River channel slope regulation project in Nanjing as the engineering background,the left and right sides of a certain river channel section are selected to carry out analysis of the load-displacement relationship between ordinary anchor shank and bladder expansion anchor cable respectively.The field test results show that under the conditions of the same length and specification,the bearing capacity of the bladder expansion anchor cable is significantly increased;under the same design bearing capacity,the bladder expansion anchor cable length is obviously decreased.The numerical simulation results show that the application of bladder expansion anchor cable can significantly reduce the horizontal displacement of the pile top.It can be concluded that the application of bladder expansion anchor cable instead of ordinary anchor shank can effectively improve the bearing capacity,control the deformation,and ensure the safety of the structure,which has significant economic and social benefits.

关 键 词：囊式扩大头锚索 普通锚杆 航道 边坡整治 

分 类 号：TV85[水利工程—水利水电工程]