阎奇武  袁锦根
  (中南大学土木建筑学院  长沙410075)

[提要]  工程实例表明，对墙下条形基础加固可灵活地安排静压桩的施工顺序，静压短桩（桩长≤lOm）的承载力可采用可靠的压桩力除以1.5的系数得出。依据工程经验提出了墙下条形基础改成桩基础承台设计方案与静压桩静压力的施加方案。在砌体危房加固工程中，当软弱地基上墙下条形基础沉降过大时，可优先采用该改进的静压桩技术加固承重墙下基础。
[关键词]  墙下条形基础  软弱地基  加固  静压桩技术

On strengthening of strip foundations beneath bearing brick wall,it is pointed out that the order of construction of static pile is arranged freely, and that bearing capacity of static short pile is the equal of the reliable static pressure of pile which is divided by the coefficient l .5. Design schemes of converting strip foundations beneath bearing wall into pile caps, and techniques of application of static pressure of static pile are proposecl,which the technique of static pile modified on strengthening of strip foundation beneath bearing wall in dangerous masonry buildings should be adopted first of all when the settlement of bearing wall's strip foundation on soft ground base is too much.
Keywords: strip foundation; bearing wall; soft ground base; strengthening; technique; static pile