您现在的位置:建筑结构>> 期 刊>> 2010年>> 第08期>>正文内容
广东科学中心岩土工程问题及治理对策
张建林1,张季超2,刘晨2,朱超2
摘 要
1 广东科学中心,广州 510006; 2 广州大学土木工程学院,广州 510006)
 
[摘要]广东科学中心位处广州市东南,整体地势偏低,属河漫滩地貌。场地软土层厚度较大,淤泥含水量高,抗震性能差,渗透性较好。结合广东科学中心建筑工程,根据已有资料和工程实践,在场地处理总体构思方案中分析了存在的岩土工程问题,选择了最优的软土地基处理方案,提出了分区处理的方式,即在堆载预压区运用创新性的处理方法“吹砂填淤、填土挤淤”,在动力排水固结区运用“少击多遍,逐级加能”的方法,通过现场试验证明该方法成功地解决了工程建设中存在的岩土工程问题,为主体工程施工提供了保证。
[关键词]岩土工程;分区;堆载预压;动力排水固结法;软土地基;处理
 
Geotechnical engineering problems and the countermeasures in Guangdong Science Center project
Zhang Jianlin1, Zhang Jichao2, Liu Chen2, Zhu Chao2(1 Guangdong Science Center, Guangzhou 510006, China; 2 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China)
Abstract:The overall topography of Guangdong Science Center is low,and belongs to the flood landforms. The soft soil field is thick, the moisture content of silt is high. The seismic performance is bad, and the permeability is good. Based on the construction projects of GDSC and the strength of the domestically available data in geotechnical engineering, the analysis had been done about the main environmental geological engineering problems in foundation treatment scheme. The most excellent soft ground treatment program had been chosen. The method of partitioned treatment was developed and applied in the civil engineering, which the creative method is called “filling sand with dynamic compaction, filling soil with squeezing silt” in preloading area, and the other method is called “less hit but many times, step by step add energy level” in dynamic drainage consolidation area. It successfully solves the silt problems existing in the construction of GDSC though field tests, and offers protection to main construction.
Keywords:environmental geotechnical problem; partitioned treatment; preloading; dynamic drainage consolidation; soft ground
广东省科技计划项目(2004B10101048),(2005A11601014),(2006B37301009);建设部科技计划项目(2005K148),(2006K301),(2007K309)。
作者简介:张建林(1961),学士,高级工程师,Email:jsb84722230@163com。
 
参考文献
[1]易和,张季超.广东科学中心建设与管理研究——建筑篇[M].北京:科学出版社,2008.
[2]张季超.地基处理[M].北京:高等教育出版社,2009.
[3]广州市地质勘察基础工程公司.广东科学中心地质详细勘察报告[R].勘察号:190022-KJ.2004.
[4]GB79—2002建筑地基处理技术规范[S].北京:中国建筑工业出版社,2002.
[5]GB50007—2002建筑地基基础设计规范[S].北京:中国建筑工业出版社,2002.
[6]刘健,阎士民,贾兴安.徐州市环境岩土工程问题及防治对策[J].地质灾害与环境保护,2008,(12).
[7]曾华健,张季超.强夯法处理广东科学中心软弱地基的试验研究[J].广州大学学报,2005,(3).

[8]张季超,曾华健.广东科学中心饱和淤泥质砂土地基预处理技术的研究与应用[J].广州大学学报,2007,(6).

下载地址

    你还没注册?或者没有登录?这篇论文要求至少是本站的注册会员才能阅读!

    如果你还没注册,请赶紧点此注册吧!

    如果你已经注册但还没登录,请赶紧点此登录吧!