- 摘 要
-
（1 山東建筑大學(xué)土木工程學(xué)院， 濟(jì)南 250101；2 山東建筑大學(xué)工程鑒定加固研究院， 濟(jì)南 250013）
［摘要］基于多樁型復(fù)合地基理論，將長短樁應(yīng)用于復(fù)合樁基的加固設(shè)計(jì)中。針對某高層住宅樓樁基承載力不足的問題，分析了原因，對樁基加固設(shè)計(jì)方案選擇進(jìn)行了比選，提出了采用補(bǔ)較長鉆孔灌注樁加固處理預(yù)應(yīng)力管樁基礎(chǔ)的方案，并對該加固方案進(jìn)行了計(jì)算分析。監(jiān)測結(jié)果表明，沉降變形穩(wěn)定，未出現(xiàn)不均勻沉降及主體結(jié)構(gòu)傾斜，取得了良好的加固處理效果。
［關(guān)鍵詞］多樁型； 長短樁； 復(fù)合樁基； 樁基加固
中圖分類號：TU473-1文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)06-0057-04
Application of multi-type & long-short pile composite foundation in pile foundation reinforcement of high-rise building
Gao Xiang1,2, Sun Jianping1,2, Xia Fengmin1,2
(1 School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China；2 Engineering Research Institute of Appraisal and Strengthening, Shandong Jianzhu University, Jinan 250013, China)
Abstract:Based on the theory of multi-type pile composite foundation, the long-short piles are applied to the reinforcement design of composite pile foundation. In view of the problem of insufficient bearing capacity of pile foundation of a high-rise residential building, the reasons were analyzed, and the design schemes of pile foundation reinforcement were compared and selected. The scheme of prestressed pipe pile foundation reinforced by long bored pile was put forward, and the reinforcement scheme was calculated and analyzed. The monitoring results show that the settlement deformation is stable, there is no uneven settlement and the main structure is not inclined, and good reinforcement effect is achieved.
Keywords:multi-type pile; long-short pile; composite pile foundation; pile foundation reinforcement
作者簡介：高翔，博士，副教授，Email：gaoxiang@sdjzu.edu.cn。
- 下載地址
-
