中建二局西南公司
设计优化指引手册
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年四月
目录
第一章地基与基础分部工程优化..............................................................................1
第1节基本思路...................................................................................................1
第2节具体措施.................................................................................................2
(1)土方回填................................................................................................2
(2)基坑支护方案优化支护........................................................................3
(3)隧道围岩等级优化................................................................................5
(4)地基处理优化........................................................................................7
(5)边坡支护HN100*50型钢优化..............................................................8
(6)微型钢管桩预应力锚杆土钉墙的复合土钉墙支护............................9
(7)超长灌注桩桩端桩侧超量后注浆法..................................................10
(8)浅基础改为桩基础..............................................................................11
(9)桩身加筋箍调整..................................................................................12
(10)旋挖桩径优化....................................................................................13
(11)基础优化............................................................................................14
(12)坡形基础优化....................................................................................15
(13)砖胎模优化........................................................................................16
(14)泥浆护壁成孔灌注桩基础优化为长螺旋钻孔灌注桩....................17
(15)基础筏板优化....................................................................................18
(16)用膨胀加强带取代伸缩后浇带优化................................................19
(17)地下室后浇带止
中建设计优化指引手册2020(94页)