（毕业设计论文）邯郸市罗城头综合商住楼基坑支护设计(9m).doc

河北工程大学科信学院毕业设计说明书 2009年 PAGE 1 毕业设计说明书（毕业论文） 邯郸市罗城头综合商住楼基坑支护设计(9m) 专 业 土木工程 学 生 夏德双 指导教师 原冬霞 河北工程大学科信学院 2009年5月30日 摘 要 拟建邯郸市罗城头综合商住楼位于邯郸市区南部，光明大街西侧原光明饮料厂内，地上29层，框架结构，地基基础设计等级均为乙级。基坑深度为9m。根据场地的土层条件及邯郸市类似基坑工程的经验。为了使基坑稳定的同时又能节省资源，经过方案的比选，采用水泥土挡墙方案和桩锚方案。 基坑北侧是滏阳河，距离很近。所以北侧要做好止水，经过方案的比选选择水泥土挡墙比较好。东侧有建筑物，最近距离只有6.5m，需控制其沉降量，土钉控制变形的能力差，因此采用桩锚方案，能够有效的控制基坑变形，西侧同东侧也需对临近建筑物变形控制，方案同东侧。南侧距离建筑物较远，是条小路故和南测方案相同使用水泥土挡墙。 设计过程中做了3种方案：悬臂桩支护、水泥土挡墙、多支点排桩。其中悬臂桩经计算桩长过长为26.2m。且弯矩过大，很不合理故没有采用。土钉墙方案适合浅基坑故没有考虑。最终确定为水泥土挡墙方案和多支点悬臂桩方案。 关键词：悬臂桩，水泥土挡墙，桩锚 Abstract Handan City, proposed the first comprehensive commercial and residential city located in the southern city of Handan, a bright street light beverages original plant on the west side, 29 on the ground floor, the framework of the structure, foundation design are B grade. Pit depth of 9m. According to site soil conditions and Handan Excavation on the north side of the kettle Caiyanghe from nearly hard. So to do a good job sealing the north side, after the election program of choice than the cement retaining wall is better. The eastern side of the building, distance is only 6.5m, take control of its settlement, deformation of soil nailing poor control, so the use of pile-anchor program, can effectively control the deformation, the west with the eastern side of the building also is close to metamorphopsia control program with the east side. Away from the south side of the building, so the South is a cul-de-sac measurement programs using the same cement retaining wall.  The design process of three kinds of programs do: 1. Cantilever Pile; 2 cement retaining wall; more than three pile fulcrum. Which the cantilever is calculated pile length is too long to 26.2m. And the moment is too large, it is unreasonable not to adopt it. Soil nail wall for shallow foundation program did not take it. To finalize the program for the cement retaining wall and pile cantilever fulc