集约式微型群桩—锚杆联合支护结构在边坡工程中的应用  

Application on concentrated micropiles-anchors combined retaining structure in slope engineering

作　　者：欧煜 王保团 熊欢 冯颖芳 Ou Yu;Wang Baotuan;Xiong Huan;Feng Yingfang(Hunan Chemical Geological Engineering Survey Institute Co.,Ltd.,Changsha 430100,China;Zhuhai Huaming Building Materials Co.,Ltd.,Zhuhai 519000,China)

机构地区：[1]湖南化工地质工程勘察院有限责任公司,长沙430100 [2]珠海华铭建材有限公司,广东珠海519000

出　　处：《工程勘察》2025年第2期16-22,共7页Geotechnical Investigation & Surveying

基　　金：中化地质矿山总局湖南地质勘查院年度科研项目(2023-SGS-02).

摘　　要：建筑边坡支护工程往往由于周边环境更为复杂、支护施工空间更为狭小、大型机械设备无法进场组织施工等特点,导致常规边坡支挡结构的使用受到了限制。微型桩支护虽具备施工简便、快速、造价更低等优点,但单根微型桩常常由于抗弯刚度小、抗变形能力弱等缺点,使其难以在永久性建筑边坡支护工程领域广泛使用。为了克服上述支挡结构存在的技术缺陷,提出了一种新型集约式微型群桩—锚杆联合支护结构,对其结构型式、简化计算模型与计算方法进行了比较详细的阐述。通过具体工程实例,介绍了其施工方法及应用范围。实践证明该种支护结构安全可靠,计算方法简洁、概念明确,便于工程应用。与传统的桩锚支护结构相比,该新型支挡结构节省工程造价约25%,经济效益明显。The building slope engineering always has the characteristics of the more complicated around environment,the narrower construction space,and harder to organize construction by using large mechanical equipments,thus lead to the convention support structures used are restricted in the engineering.Although the micro-piles have the advantages of convenient and rapid construction,lower construction cost,but the stiffness and the ability of resisting deformation of the single pile are fairly limited.Thus,it always cannot be widely used in permanent building slope support engineering.In order to overcome the defects consisted in these supporting structures,a new retaining structure:the concentrated micropiles-anchors combined retaining structure is put forward.The structural form,the simplified calculation model and the calculation approach of this structure are explained in detail.Based on a practical engineering,the construction method and application range are introduced as well.The practice has proven that this structure is security and reliable,the calculation method is concise with clear concept,and can be easily applied to the practical projects.Compared with the traditional pile-anchor support structure,this new retaining structure has obvious economic benefits which can save cost about 25%.

关 键 词：建筑边坡工程 集约式微型群桩 锚杆 计算方法 边坡支护结构 

分 类 号：TU753[建筑科学—建筑技术科学] TU473.1