大厚度黄土场地联合板索基础及其特性  

Combined Plate-Cable Foundation and Its Characteristics in Loess Site with Large Thickness

作　　者：雒亿平[1,2] 言志信[1,3] 

机构地区：[1]兰州大学土木工程与力学学院,甘肃兰州730020 [2]国网甘肃省电力公司经济技术研究院,甘肃兰州730050 [3]河南城建学院土木工程学院,河南平顶山467036

出　　处：《铁道建筑》2016年第11期107-110,共4页Railway Engineering

基　　金：国家自然科学基金(41372307);国家电网公司科技项目(KJ〔2013〕12;SGGSJYOOGHJS1400055)

摘　　要："大开挖"、"掏挖扩底"、"爆扩桩"为目前我国大厚度黄土场地中主要使用的既抗压又抗拔的基础类型,针对3种基础形式存在的缺陷和不足,借鉴锚索拉盘、掏挖桩等技术构建了联合板索基础并且获得了发明专利授权。联合板索基础的上板主要承受下压力和水平力,下板主要承受上拔力。联合板索基础不仅结构简单、造价低廉、安全可靠、抗动荷载能力强、对环境破坏小,而且其荷载传递明晰、科学合理,各部分功能明确而又协同工作。Large excavation,digging foundation expansion and explosive-enlarged hole pile are the primary foundation types which could resist the pressure and uplift force in loess site with large thickness in China.Based on the defects and shortcomings of these three foundation types,the combined plate-cable foundation was established and authorized by the invention patent through utilizing the technology of anchor-cable pulling plate,digging pile and so on.The upper plate of the combined plate-cable foundation primarily bears low pressure and horizontal force and the lower plate of the combined plate-cable foundation primarily bears uplift force.The combined plate-cable foundation is not only simple-structured,inexpensive,reliable,strong in resisting dynamic load and environment friendly,but also explicit in load transfer,reasonable and cooperative in consisting components.

关 键 词：大厚度黄土场地 板索基础 构造 特征 

分 类 号：TU475.3[建筑科学—结构工程]