深基坑边坡支护方案的设计与分析  

DESIGN AND ANALYSIS OF SLOPE BRACING SCHEME WITH DEEP FOUNDATION PIT

作　　者：刘兴 付厚利 秦哲 亓伟林[1] LIU Xing;FU Hou-li;QIN Zheu;QI Wei-lin(College of Civil Engineering and Architecture, Shandong University of Science and Technology, 266590, Qingdao, Shandong, China;College of Civil Engineering and Architecture, Linyi University, 276000, Linyi, Shandong, China;State Key Laboratory Breeding Base of Mining Disaster Prevention and Control(Shandong University of Science and Technology), 266590, Qingdao, Shandong, China)

机构地区：[1]山东科技大学土木工程与建筑学院,山东青岛266590 [2]临沂大学土木工程与建筑学院,山东临沂276000 [3]矿山灾害预防控制重点实验室-省部共建国家重点实验室培育基地(山东科技大学),山东青岛266590

出　　处：《建筑技术》2019年第3期298-300,共3页Architecture Technology

摘　　要：舒香苑小区7号住宅基坑深16.3m,支护要求高,难度大。设计基坑支护结构时,对独特地质条件进行分析研究,提出了二^放坡加局部锚固支护方案。对注浆花管的抗剪和抗弯性能及边坡整体稳定性分析,结果表明,支护效果明显,能有效控制基坑位移。采用有限差分软件FLAC3D对基坑支护变形进行模拟分析,结果显示支护结构水平位移值远小于规范规定。The depth of No.7 residential building in the community of Shuxiangyuan comes to 16.3 m. So supporting demanding needs high quality and the coefficient of supporting is difficult. By analyzing the study of the unique engineering geological conditions in the excavation's structxiral designing, we proposed secondary grading plus local anchor supporting schemes. By analyzing the shear and flexural properties and the slope stability for grouting flower tube, we obtained a obvious supporting effect of such supporting design, and it can effectively control the generation of the displacement of foundation. We analyze and simulate the deformation of the foundation bracing system in the finite difference software FLAC3D, and The results show the value of the horizontal displacement of supporting structure is much smaller than the value of specification.

关 键 词：深基坑支护 注浆花管 二^放坡 数值模拟 

分 类 号：TU473.2[建筑科学—结构工程]