小弟初学工程造价,请大家帮忙算下下图的基础挖土方。土质为三类,垫层为c10混凝土支模
推荐回答(2个)
二、任务安排
(一)带型基础及垫层的计算
1、某单位传达室基础平面图及基础详图见图1及图2。
图1 传达室基础平面图 图2 内、外墙基础剖面图
说明:1、平面图中标注尺寸均为墙中心线尺寸;
2、内、外墙基础剖面图相同。
已知工程的做法及相关的工程资料如下:
(1)室内设计地坪标高0.00,室外设计地坪标高-0.3m;
(2)土壤类别为三类干土;
(3)混凝土强度等级为:基础垫层C10,带形基础C20;
(4)±0.00以下砖基础采用MU10标准砖、M7.5水泥砂浆砌筑;
(5)经查《预算手册》,标准砖基础大放脚的折加高度及折加面积见下表。
等高式砖墙基础大放脚折加高度及折加面积换算表
砖墙厚度
放脚层数 折加高度(m) 折加面积(m2)
1/2砖 1砖 1砖半
一 0.137 0.066 0.043 0.01575
二 0.411 0.197 0.129 0.04725
问题:
根据下面资料以及《江苏省建筑与装饰工程计价表》(2004)的计算规则,列项并计算该工程平整场地、挖基槽、砼基础、砖基础及砼垫层的预算。本工程施工方案的有关资料及有关要求如下:
(1)基础采用人工放坡开挖,放坡比例为1:0.33;
(2)计算结果保留二位小数。
参考答案
(1)平整场地:(9.24+4)×(5.24+4)=122.34(平米)
(2)挖地槽:
截面积 (1.0+0.3×2+0.33×1.6)×1.6=3.4(平米)
外墙地槽计算长度 (9.0+5.0)×2=28(米)
内墙地槽计算长度 (5-0.8×2)×2=6.8(米)
挖地槽工程量 3.4×(28+6.8)=118.32(立方)
(3)砖基础工程量:
截面积 0.24×(1.3+0.197) =0.359(平米)
计算长度 (9+5)×2+(5-0.24)×2=37.52 (米)
砖基础工程量 0.359×37.52=13.47(立方)
(4)基础垫层:
截面积 0.1*1.2=0.12 (平米)
计算长度 (9+5)×2+(5-0.6×2)×2=35.2(米)
基础垫层工程量 0.12*35.2=4.22 (立方)
(5)混凝土条基
截面积 1.0×0.1+(0.59+1.0)÷2×0.1=0.1795(平米)
计算长度 (9+5)×2+(5-0.1795÷0.2)×2=36.2(米)
混凝土工程量 0.1795×36.2=6.50(立方)

按清单计算如下:长度L=(7.2+4.8)*2+(4.8-0.8)=28米
H=1.4-0.3=1.1米
宽度B=0.8米
所以挖方V=28*1.1*0.8=24.64方
项目特征:条形基础,三类土 挖土深度1.1米,垫层宽度0.8米
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