大倾角抗侧墩体组合式围护结构研究  

THE RESEARCH OF COMBINED RETAINING STRUCTURE WITH LARGE INCLINED ANGLE ANTI- LATERAL PIER

作　　者：钱鹏[1] 严平[1] 程博[1] 翁昕[1] 

机构地区：[1]浙江大学防灾减灾工程及防护工程研究所,杭州310058

出　　处：《低温建筑技术》2015年第7期117-119,共3页Low Temperature Architecture Technology

摘　　要：大倾角抗侧墩体组合式围护结构由排桩和抗侧墩体组成。这种新型的围护结构形式,利用斜桩在基坑中形成抗侧墩体,再通过压顶板与排桩围护墙组合,共同承担基坑周边的水土压力,具有经济合理、安全可靠等优点。针对该围护结构的特点,研发了专用的大倾角多功能植桩机和配套的施工工艺,可方便的进行这种围护结构的施工。利用数值软件进行三维模拟分析,证明了这种围护结构形式在基坑围护中良好的适用性,并研究了斜桩倾角对围护结构抗侧性能的影响规律。Combined retaining structure with large inclined angle anti-lateral pier is a new form of foundation pit support structure,which is composed by anti-lateral piers and a row of piles. Due to the strong ability of the resistant for lateral load of the inclined piles,this enclosure structure is characterized by economy,reliability and convenient construction. A new piling machinery named large inclined angle multifunctional pile driver is developed in order to ensure the application of this new technology. The results of three-dimensional numerical simulation by Plaxis 3d prove this retaining structure has a very good performance in foundation pit support engineering.

关 键 词：围护结构 斜桩 植桩机 数值模拟 

分 类 号：TU473.5[建筑科学—结构工程]