青海湖“水草地”碎石桩复合地基加固效果的数值分析  

Numerical Analysis of Reinforcement Effects of Gravel Pile Composite Foundation in Qinghai Lake "Water meadow"

作　　者：闫吉祥 张蕾[1] 程大祎 谭家科 廖燚 Yan Jixiang;Zhang Lei;Cheng Dayi;Tang Jiake;Liao Yi(Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650500,China;Dehong Good Life Real Estate Co.Ltd.,Mangshi 678400,China)

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650500 [2]德宏美好生活置业有限公司,云南芒市678400

出　　处：《海南大学学报（自然科学版）》2022年第1期84-90,共7页Natural Science Journal of Hainan University

基　　金：青海省科技成果转化专项(2021-SF-168)。

摘　　要：以青海省某高速段水草地软土路基工程为背景,运用Midas-GTS NX软件建立天然地基、碎石桩复合地基、碎石桩+土工栅格3种软土路基模型,对比3种工况的x,z向变形,结合经济性评价,分析适宜青海“水草地”采用的碎石桩复合地基处理方法.研究表明:采用碎石桩复合地基能有效控制路基的侧向、竖向变形.In the report,the soft soil subgrade of water meadow in an expressway section of Qinghai Province was used as the engineering background,the Midas-GTS NX software was used to establish three soft soil subgrade models,natural foundation,gravel pile composite foundation,and gravel pile plus geogrid,and the deformation in x and z directions under three working conditions were compared. Combined with the economic evaluation,the treatment method of gravel pile composite foundation suitable for Qinghai "water meadow" was analyzed. The results showed that the gravel piles composite foundation can effectively control the lateral and vertical deformation of subgrade.

关 键 词：水草地 碎石桩复合地基 软基处理 数值分析 青海湖 

分 类 号：TU47[建筑科学—结构工程]