梅花形布置双排抗滑桩在滑坡处治中的应用  

Application of Double Row Anti Slip Piles Arranged in Plum Blossom Shape in Landslide Treatment

作　　者：王绍平 WANG Shaoping(Fujian Geologic Surveying and Mapping Institute,Fuzhou 350004,China)

机构地区：[1]福建省地质测绘院,福州350004

出　　处：《交通科技》2023年第6期105-109,共5页Transportation Science & Technology

摘　　要：双排抗滑圆桩由于抗弯能力强、施工方便等优点,在大中型滑坡治理工程中得到广泛应用,目前主要运用门架式抗滑桩,对梅花形布置应用研究较少。文中依托某滑坡治理工程实例,采用简化模型研究门架式和梅花形布置双排抗滑桩在滑坡推力作用下的桩身位移和内力。结果表明,梅花形布置抗滑桩通过加强桩顶约束提高双排桩的整体性,能够有效地减小双排桩的桩顶位移和桩身弯矩,但是前排桩轴力略有减小,后排桩轴力增加。研究表明,梅花形布置较门架式布置更为合理,在大中型滑坡治理中可优先选用梅花形布置。Double row anti slip circular piles have been widely used in large and medium-sized landslide control projects due to their strong bending resistance and convenient construction.Currently,gantry anti slip piles are mainly used,while there is a limited application of anti slip piles arranged in plum blossom shape.A simplified model was used to study the displacement and internal force of double row piles with gantry and plum blossom arrangement under the residual sliding force,based on an example of a landslide treatment project.The results show that the plum blossom arrangement of anti slip piles enhances the integrity of the double row piles by strengthening the pile top constraint,effectively reducing the pile top displacement and pile bending moment of the double row piles.However,the axial force of the front row piles slightly decreases,while the axial force of the rear row piles increases significantly.Through research,the plum blossom layout is more reasonable than the gantry layout,and it can be prioritized in the treatment of large and medium-sized landslides.

关 键 词：滑坡治理 抗滑桩 梅花形布置抗滑桩 门架式布置抗滑桩 

分 类 号：U416.1[交通运输工程—道路与铁道工程] TU416.14[建筑科学—岩土工程]