后注浆灌注桩承载力试验及分析
摘要:结合某后注浆工程,通过竖向静载试验对比,分析注浆与未注浆的钻孔灌注桩承载力性能及沉降规律,给同类工程提供有益的参考。桩端后注浆不但提高桩端阻力,还使桩侧摩阻力提高,并降低桩的变形量。注浆压力是在一定范围内变化的值,最大注浆压力随时间增大。桩间距较小或布桩集中的桩基应做现场试验确定注浆参数。
Abstract:Based on a post-grouting engineering and comparisons of static loading tests (some is post-grouted and the other not). The author analyzed the laws of bearing capacity and settlement, then provided some beneficial references to similar engineering. Post-grouting can increase the bearing capacity of the side and bottom resistance, decreases the settlement of pile effectively. The grouting pressure is a changing value within certain limits, the maximum grouting pressure become greater as time changes. The piles are harder post-grouted and with more grouting pressure. The parameter of these piles should be en sured by field experiments.
中文标题：
后注浆灌注桩承载力试验及分析
Experimental Analysis on Bearing Capacity of Post-Grouting Simplex Pile
作者：
江萍1,陆文哲2
Jiang Ping1,Lu Wenzhe2
作者简介:江萍,1979年生,女,浙江杭州人,工程师,从事建筑工程设计、鉴定、检测。杭州市房屋安全鉴定事务管理中心。E-mail:lwz6666@163.com
通讯地址：
1. 杭州市房屋安全鉴定事务管理中心, 浙江杭州 310003; 2. 浙江省城乡规划设计研究院, 浙江杭州 310007
1.HangzhouManagementCenterofBuildingsSafetyAppraisal,Hangzhou310003,China; 2.ZhejiangUrbanandRuralPlanningDesignInstituteHangzhou310007,Zhejiang,China
中图分类号:TU473.1
doi:10.3969/j.issn.1007-2993.2012.02.010
出版物：岩土工程技术
收稿日期:2011-12-26
网络出版日期:2021-07-06
关键词:后注浆,静载试验,承载力,沉降,注浆压力
Key words:post-grouting,static load test,bearing capacity,settlement,grouting pressure
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