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[试验检测师] 公路评分题 [复制链接]

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工程质量等级评定例题°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

检查项目°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

压实度°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

弯沉°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

纵断高程°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

中线偏位°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

宽度°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

平整度°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

横坡°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

边坡°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

合格率(%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

90°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

100°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

75°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

90°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

85°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

75°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

90°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

80°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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3°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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3°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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2°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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2°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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2°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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2°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

1°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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1°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

(1)请评定该路段土方路基质量等级。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
解:(1)检测项目得分分别为:91、100、75、90、85、75、90、80°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
土方路基分项工程评分值=86.9-8-6=72.9(分),小于75分°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
小于75分,故质量等级评定为不合格。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
路基、路面压实度评定例题°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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1.721.691.711.761.781.761.681.751.741.731.731.70(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%)。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

  °€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

保证率°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

保证率系数Za°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

n=10°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

n=11°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

n=12°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

99%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.892°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.833°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.785°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

2.327°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

95%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.580°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.546°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.518°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

1.645°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

90%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.437°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.414°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.393°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

1.282°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

97.72%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.814°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.761°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.718°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

2.00°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

93.32%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.537°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.506°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.481°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

1.50°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
(2)计算平均值 和标准偏差S °€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
=95.0%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
S=1.68%
°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
(3)计算代表值,当95%保证率n=12时,查表得: °€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
K= - ·S=95.0-0.518×1.68=94.1%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
(4)评定K0=93%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
因K>K0°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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。
°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
路面结构层厚度评定例题°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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17.517.718.218.618.118.8、、17.617.819.119.317.417.9cm,试按保证率99%评定该路段的厚度是否合格?并计算合格率°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
  °€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

保证率°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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保证率系数Za°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

n=10°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

n=11°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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n=12°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

99%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.892°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.833°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.785°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

2.327°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

95%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.580°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.546°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.518°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

1.645°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

90%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.437°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.414°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.393°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

1.282°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

97.72%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.814°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.761°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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0.718°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

2.00°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

93.32%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.537°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.506°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

0.481°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

1.50°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

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°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã

°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
解:(1)厚度平均值°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
(2)标准偏差S=0.64cm,查表得: =0.785°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
(3)厚度代表值 = °€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
(4)该路段厚度代表值符合要求。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
(5)由于各检测值Xi>18-0.8=17.2cm故合格率为100%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
路基、柔性基层、沥青路面弯沉值评定例题°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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:6052104110901562247014013070 1002101041708086745460104702181001105040 (0.01mm),请计算该路段的弯沉代表值。(采用2S法,取Za=2.0)。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
解:(1)将上述27个数据计算得: =105(0.01mm),S=51.6(0.01mm),CV=49.1%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
(2)重新计算其余24个观测值得: =91,S=34,CV=37.4%°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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。‘’ °€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
(4)计算弯沉代表值: Lr+2S=82+2×24.5=122(0.01mm)。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
水泥混凝土抗压强度评定例题°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»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。°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
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还行吧°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
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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°€ÒF´5os…8bbs.3c3t.comU‰óVn¥»ã
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