水文勘测规范目录_水文数据目录服务规范

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目录

1总则 ························ 1 2术语 ························ 2 3各勘测设计阶段的工作内容和要求 ··········· 4

3.1可行性研究阶段 ················· 4

3.2初步设计阶段 ·················· 5

3.3施工图设计阶段 ················· 7 4水文调查与勘测 ··················· 8

4.1一般规定 ···················· 8

4.2水文调查 ···················· 8

4.3水文勘测 ··················· 10

4.4洪水观测 ··················· 11 5设计洪水分析与计算 ················ 13

5.1一般规定 ··················· 13

5.2利用实测流量系列推算设计流量 ········· 13

5.3利用历史洪水位推算设计流量 ·········· 16

5.4设计流量计算的其他方法 ············ 19

5.5设计水位 ··················· 19

5.6设计洪水过程线 ················ 20 6桥孔设计 ····················· 21

6.1一般规定 ··················· 21

6.2桥孔长度 ··················· 21

6.3桥孔布设 ··················· 23i

6.4桥面设计高程 ················· 25 7墩台冲刷计算及基础埋深 ·············· 27

7.1一般规定 ··················· 27

7.2河床自然演变冲刷 ··············· 27

7.3桥下一般冲刷计算 ··············· 27

7.4墩台局部冲刷计算 ···············

7.5特殊情况的冲刷计算 ··············

7.6墩台基底最小埋置深度 ·············8小桥涵水文勘测设计 ················

8.1布设原则 ···················

8.2水文调查与勘测 ················

8.3水文计算 ···················

8.4孔径设计 ···················

8.5冲刷防护 ···················9路基水文勘测设计 ·················

9.1一般规定 ···················

9.2水文调查与勘测 ················

9.3水文分析与计算 ················

9.4浸水路基高度 ·················

9.5冲刷防护 ···················10特殊地区桥梁水文勘测设计 ············10.1水库地区 ··················10.2泥石流地区 ·················10.3平原低洼（河网）地区 ············ ii 31 34 34 36 36 37 38 39 40 41 41 41 42 46 48 49 49 54 58

10.4岩溶地区 ·················· 6110.5倒灌河段 ·················· 6510.6潮汐河段 ·················· 67 11调治工程 ···················· 7111.1一般规定 ·················· 7111.2

11.3

附录A

附录B

附录C

附录D

导流堤布设及冲刷计算 ············丁坝布设及冲刷计算 ·············河段分类表··················墩形系数及墩宽计算 ··············岩石地基桥墩冲刷及基底埋深 ·本规范用词说明 ················iii7*** ·········

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