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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

25卷

期数:

2008年02期

页码:

116-119

栏目:

出版日期:

2008-06-20

文章信息/Info

Title:

Engineering Application of Reinforcement Method of Sand Foundation

作者:

白涛¹,齐晓迪²,袁树基³,杨廷文⁴

1.陕西省建筑科学研究院,陕西西安710098;2.陕西龙泽地基工程公司,陕西西安710014; 3.浙江林学院园林学院,浙江临安311300;4.山东兖矿集团,山东邹城273522

Author(s):

BAI Tao¹, QI Xiao-di², YUAN Shu-ji³, YANG Ting-wen⁴

1. Building Scientific Research Institute of Shaanxi Province, Xi'an 710098, Shaanxi, China; 2. Longze Foundation Engineering Ltd of Shaanxi Province, Xi'an 710014, Shaanxi, China; 3. School of Landscape Architecture, Zhejiang Forestry University, Lin'an 311300, Zhejiang, China; 4. Yankuang Group of Shandong Province, Zoucheng 273522, Shandong, China

关键词:

砂土地基;  地基处理;  加固方法;  无填料振冲法;  水坠换填法

Keywords:

sand foundation;  foundation treatment;  reinforcement method;  method of vibroflotation without additional backfill material;  method of water weigh down sand

分类号:

TU441.4

DOI:

-

文献标志码:

A

摘要:

以陕西榆林地区3个砂土地基处理工程为例,通过地基处理前后的标准贯入度试验、静载试验和孔隙比测定等现场试验,分别在适用范围、处理深度以及经济效益方面对水坠换填法和无填料振冲法的加固效果进行了分析比较。分析结果表明:对于承载力要求高、加固深度较大、地下水位较高和土质为粉细砂的地基,无填料振冲法比水坠换填法加固效果明显; 无填料振冲法比水坠换填法具有更大的适用范围,是一种应用面广、加固效果显著、经济效益好的地基处理方法,可以在细砂地基加固中推广应用。

Abstract:

Taking three sand foundation treatment engineering in Yulin City, Shaanxi Province as an example, the method of water weigh down sand and the method of vibroflotaion without additional backfill materials to reinforce the sand foundation were analyzed and compared in sides of the application area, the depth to deal with and economy effect through the standard penetration test, static loading test and the determination of pore-solids ratio. The analytical results show that the method of vibroflotation without additional backfill materials has a wider application area. In the condition that the depth of foundation to be reinforced is larger, the ground water table is higher or the situation of fine silty sand, the method of vibroflotation without additional backfill materials can get a more obvious reinforcement effect compared the method of water weigh down sand; the method of vibroflotation without additional backfill materials is a good method of foundation treatment which has a wide application area, obvious reinforcement effect and good economy benefits. The method can be applied to reinforce the sand foundation.

参考文献/References:

[1] 郑勋涛.水坠砂法处理砂土地基的应用[J].西部探矿工程,2002(2):53-54. ZHENG Xun-tao.Application of the Method of Water Weigh down Sand to Dispose the Subgrade Foundation Sand[J].West-China Exploration Engineering,2002(2):53-54.
[2]郑念屏.无填料振冲挤密处理风积细砂[J].工业建筑,1997,27(8):58-59. ZHENG Nian-ping.The Method of Vibroflotation Without Additional Backfill Materials to Dispose Eolian Deposit[J].Industrial Construction,1997,27(8):58-59.
[3]周 健,贾敏才,池 永.无填料振冲法加固粉细砂地基试验研究及应用[J].岩石力学与工程学报,2003,22(8):1350-1355. ZHOU Jian,JIA Min-cai,CHI Yong.Vibroflotation Compaction of Silty Fine Sands Without Additional Backfill Materials[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(8):1350-1355.
[4]《地基处理手册》编写委员会.地基处理手册[M].2版.北京:中国建筑工业出版社,2000. Foundation Treatment Directory Compile Committee.Foundation Treatment Directory[M].2nd ed.Beijing:China Architecture & Building Press,2000.
[5]JGJ 79-2002,建筑地基处理技术规范[S]. JGJ 79-2002,Construction Foundation Treatment Technical Code[S].

相似文献/References:

[1]李镜培,马原,杨培芳,等.软土地基高真空击密法与低位高真空分层预压击密法加固效果分析[J].建筑科学与工程学报,2011,28(02):79.
　LI Jing-pei,MA Yuan,YANG Pei-fang,et al.Analysis of Strengthening Effect of HVDM with SHVLPDM in Soft Soil Foundation[J].Journal of Architecture and Civil Engineering,2011,28(02):79.
[2]贺伟,韩晓雷,薛玉,等.高能级强夯在湿陷性黄土地区的应用[J].建筑科学与工程学报,2009,26(02):121.
　HE Wei,HAN Xiao-lei,XUE Yu,et al.Application of High Energy Level Dynamic Compaction in Collapsible Loess Region[J].Journal of Architecture and Civil Engineering,2009,26(02):121.

备注/Memo

备注/Memo:

收稿日期:2008-02-27
作者简介:白 涛(1951-),男,陕西清涧人,工程师,E-mail:394681791@qq.com。

常用功能

更新日期/Last Update: 2008-06-20