监理检测网论坛

注册

 

返回列表
发新话题 回复该主题
查看: 2909|回复: 2

[试验检测师] 公路评分题 [复制链接]

泰来
头像

  • 技术员
  • 12
  • 42
  • 2012-06-04
1#
t T
发表于 2012-06-04 13:33 |只看楼主
★工程质量等级评定例题}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
1、某土方路基质量评定，经对压实度、弯沉、平整度等8项指标检测，各指标合格率如表所示，其中压实度代表值大于压实度标准值，弯沉代表值满足要求。外观缺陷和资料不全扣分分别为8分和6分。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

检查项目}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

压实度}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

弯沉}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

纵断高程}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

中线偏位}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

宽度}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

平整度}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

横坡}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

边坡}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

合格率（%）}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

90}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

100}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

75}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

90}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

85}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

75}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

90}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

80}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

权 值}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

3}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

3}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

2}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

2}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

2}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

2}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

1}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

1}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

（1）请评定该路段土方路基质量等级。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（2）如评定结果不合格，那么如何改进该土方路基的质量？如评定结果合格，为了进一步提高该土方路基的质量，则应采取什么措施。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
解：（1）检测项目得分分别为：91、100、75、90、85、75、90、80}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
土方路基分项工程得分：（90×3＋100×3＋75×2＋90×2+85×2+75×2+90×1+80×1）/（3+3+2+2+2+2+1+1）=86.9分}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
土方路基分项工程评分值＝86.9-8-6=72.9(分)，小于75分}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
小于75分，故质量等级评定为不合格。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（2）改进措施：提高检查项目的合格率，纵观检测项目的合格率和规定分，首先应提高压实质量，进行补充压实，使压实度合格率提高。其次提高平整度合格率；补充质量保证资料，减少扣分；整修外观缺陷，减少扣分。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
★路基、路面压实度评定例题}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
2．某二级公路路基压实质量检验，经检测各点（共12个测点）的干密度分别为1.72、1.69、1.71、1.76、1.78、1.76、1.68、1.75、1.74、1.73、1.73、1.70(g/cm3)，最大干密度为1.82g/cm3，试按95%的保证率评定该路段的压实质量是否满足要求（压实度标准为93%）。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

附  表}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

保证率}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

保证率系数Za}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

n=10}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

n=11}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

n=12}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

99%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.892}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.833}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.785}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

2.327}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

95%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.580}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.546}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.518}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

1.645}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

90%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.437}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.414}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.393}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

1.282}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

97.72%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.814}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.761}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.718}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

2.00}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

93.32%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.537}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.506}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.481}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

1.50}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

解：（1）计算各测点的压实度Ki（%）分别为：94.5、92.9、94.0、96.7、97.8、96.7、92.3、96.2、95.6、95.1、 95.1、93.4}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（2）计算平均值 和标准偏差S }Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
=95.0%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
S=1.68%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（3）计算代表值，当95%保证率n=12时，查表得： }Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
K= - ·S=95.0-0.518×1.68=94.1%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（4）评定K0=93%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
因K>K0}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
且Ki min=92.3%>88%（极值标准）所以该评定路段的压实质量满足要求。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
★路面结构层厚度评定例题}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
3．某高速公路二灰稳定砂砾基层设计厚度为18cm，代表值允许偏差为-8mm，极值允许偏差为-15mm。评定路段厚度检测结果（12个测点）分别为17.5、17.7、18.2、18.6、18.1、18.8、、17.6、17.8、19.1、19.3、17.4、17.9cm，试按保证率99%评定该路段的厚度是否合格？并计算合格率}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
附  表}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

保证率}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

保证率系数Za}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

n=10}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

n=11}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

n=12}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

99%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.892}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.833}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.785}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

2.327}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

95%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.580}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.546}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.518}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

1.645}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

90%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.437}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.414}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.393}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

1.282}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

97.72%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.814}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.761}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.718}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

2.00}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

93.32%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.537}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.506}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

0.481}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

1.50}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã

}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
解：（1）厚度平均值}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
=（17.5+17.7+18.2+18.6+18.1+18.8+17.6+17.8+19.1+19.3+17.4+17.9）/12=18.17cm}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（2）标准偏差S=0.64cm，查表得： =0.785}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（3）厚度代表值 = }Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（4）该路段厚度代表值符合要求。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（5）由于各检测值Xi>18-0.8=17.2cm故合格率为100%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
★路基、柔性基层、沥青路面弯沉值评定例题}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
4、某检测组对某一已完工的路基进行弯沉测试，共测得２７个弯沉值，其数据如下：60、52、104、110、90、156、224、70、140、130、70、 100、210、104、170、80、86、74、54、60、104、70、218、100、110、50、40 (0.01mm)，请计算该路段的弯沉代表值。（采用２S法，取Za=2.0）。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
解：（1）将上述27个数据计算得： =105（0.01mm），S=51.6(0.01mm)，CV=49.1%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
采用2S法，将超出 ±2S范围的作为特异值，即凡大于 + 2S=208的观测值舍弃，有三个：224，210，218。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（2）重新计算其余24个观测值得： =91，S=34，CV=37.4%}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
采用2S法，将超出 ±2S范围的作为特异值即凡大于 + 2S=129的观测值舍弃，又有三个：170，156，140。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（3）重新计算其余21个观测值得： =82(0.01mm)，S=24.5(0.01mm)，CV=29.9%，无特异值。‘’ }Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
（4）计算弯沉代表值: Lr+2S=82+2×24.5=122(0.01mm)。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
★水泥混凝土抗压强度评定例题}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
5、某桥基础所需混凝强度等级为C20，施工过程中制取的3组混凝土立方体试件28天抗压强度如下表所示，试评定该混凝土强度等级是否合格。}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
分享 转发
TOP
泰来
头像

  • 技术员
  • 12
  • 42
  • 2012-06-04
2#
t T
发表于 2012-06-04 13:44 |只看楼主

还行吧}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
TOP
ymy841125
头像

  • 助理工程师
  • 56
  • 495
  • 2009-08-25
3#
t T
发表于 2012-06-05 09:00 |只看该用户

可否发给我一份全的呢？谢谢楼主了 154477649是我的qq，发我qq邮箱呗 万分感谢}Œò÷ÂÚv¬bbs.3c3t.comÙðà ¢î*¬ã
TOP
上一主题| 下一主题
返回列表
发主话题 回复该主题
高级编辑器高级编辑器