2013年10月上施工技术 第42卷第19期CONSTRUCTION TECHNOLOCY53 DOI:10. 7672/sgjs2013190053
岩石地基高水头条件下基础方案选型研究
汤辉',曲成平²,黄翠翠²,张健 (1.龙信建设集团有限公司青岛分公司,山东青岛266061;2.青岛理工大学土木工程学院,山东青岛266033)
[摘要】岩石地基高水头条件下基础方案选型主要牵涉基础形式和抗浮方案两方面。
而抗浮方案又分为使用阶段 抗浮和施工阶段抗浮。
结合工程实例,对这两方面进行了综合性能分析,详细阐述了各种方案的结构性能、工程造 价、工期及综合效益,并进行了对比分析。
得出了在岩石地基高水头条件下选择基础方案时,宜首选平板式筏板基 础,抗浮方案宜首选结构加覆土的形式,若抗浮不能满足要求时,应考虑结构结合抗浮锚杆的形式。
[关键词]地基;岩石地基;锚杆;造价 [中图分类号】TU753[文献标识码】A[文章编号]1002-8498(2013)19-0053-03 TheAnti-floatSchemeSelectionResearchUnder the Condition ofHighWaterHeadofRockFoundation Tang Hui', Qu Chengping²,Huang Cuicui²,Zhang Jian' (1.Longxin Construction Group Stock Co.,Lad.,Qingdao Branch,Qingdao,Shandong 266061,China; 2.School of Civil Enginering,Qingdao TechnologicalUniresty,Qingdao,Shandong 266033,China) Abstract:The selection of the foundation program under the condition of rock foundation with high water head mainly involves two aspects,neis theformof the foundation,and the second oneis the programof the anti-float which can be divided into using stage anti-float and construction stage anti-float. This paper performed a prehensive analysis to the two aspects bined with engineering example,and elaborated on the structural performance,project cost, time limit and prehensive benefits of the various programs,and carried on the contrastive analysis. It is concluded that flat raft foundation and the anti-float program of structure plus the casing should be preferred when select the foundation program under the condition of rock foundation with high water head,and the form of structure bined with anti-floating anchor should be considered when anti-float ability can't meet the requirements. Key words;foundations; rock foundations; anchors; costs
1基础方案选择板基础形式的设计和综合造价分析,如表1所示。
青岛地区岩石地基条件下的基础形式常规做表1综合造价分析 法是:裙房部分的基础常采用独立柱基础加抗水Table 1Cost analysis 板、梁式筏板基础等;主楼下的基础形式常采用墙序工程名称底板面基础总造价/每m² 下条形基础加抗水板、上返梁式筏板基础、下返梁号积/m²形式万元造价/元 式筏板基础、平板式筏板基础等。
1青岛第29届奥运16 053平板式981.6119 经过近些年的工程实践证明,裙房部分基础在会奥运村工程梁板式1102.0E0 1
2青岛市数码科...