河川砂防技術基準　維持管理編（河川）

1.目的

2.計画

3.目標

4.状況把握

5.河道流下断面確保

6.施設の維持管理

7.河川区域の維持管理

8.河川環境の維持管理

9.水防対策

まとめてみようと思ったけど、難しかったから、そのまま載せる。

第 1 章 総説 ································································ 1
第 1 節 目的 ······························································ 1
1．1 本基準の目的······················································· 1

1．2 河川維持管理の特徴················································· 1

1．3 本基準の位置付け··················································· 2

第 2 節 河川維持管理の基本方針············································· 3

中長期的視点に立った維持管理計画
メンテナンスサイクルの構築
状態監視保全、事後保全への移行
長寿命化対策の推進ｃｃ

第 3 節 適用範囲··························································· 6

河川区域
兼用工作物、許可工作物
水防などの対策
一級、二級、準用河川

第 2 章 河川維持管理に関する計画············································· 9
第 1 節 河川維持管理計画··················································· 9
1．1 一般 ······························································ 9

河川整備計画、河川維持管理計画

1．2 計画に定める事項··················································· 9

概要

留意すべき事項

区間区分

河川維持管理目標

河川の状況把握

4章

維持管理対策

5，6章

第 2 節 サイクル型維持管理················································ 12
2．1 サイクル型維持管理体系の構築······································ 12

2．2 河道計画等との関係················································ 13

第 3 章 河川維持管理目標···················································· 15
第 1 節 一般······························································ 15

第 2 節 河道流下断面に係る目標設定········································ 15

第 3 節 施設の機能維持に係る目標設定······································ 17
3．1 基本 ····························································· 17

3．2 河道（河床低下・洗掘の対策）に係る目標···························· 17

3．3 堤防に係る目標···················································· 18

3．4 護岸、根固工、水制工に係る目標···································· 19

3．5 床止め（落差工、帯工含む。）に係る目標····························· 20

3．6 堰、水門、樋門、排水機場等に係る目標······························ 20

3．7 水文・水理観測施設に係る目標······································ 21

第 4 節 河川区域等の適正な利用に係る目標·································· 22

第 5 節 河川環境の整備と保全に係る目標···································· 22

第 4 章 河川の状態把握······················································ 24
第 1 節 一般······························································ 24

第 2 節 基本データの収集·················································· 26
2．1 水文・水理等観測·················································· 26

2．2 測量 ····························································· 27
2．2．1 縦横断測量··················································· 27

2．2．2 地形測量及び写真測量········································· 28

2．3 河道の基本データ·················································· 28

河床材料調査について
河道内樹木調査について

2．4 河川環境の基本データ·············································· 30

2．5 観測施設、機器の点検·············································· 31

第 3 節 堤防点検等のための環境整備········································ 32

第 4 節 河川巡視·························································· 32
4．1 一般 ····························································· 32

4．2 平常時の河川巡視·················································· 33

4．3 出水時の河川巡視·················································· 34

第 5 節 点検······························································ 35
5．1 出水期前、台風期、出水後等の点検·································· 35
5．1．1 出水期前、台風期の点検······································· 35

5．1．2 出水後等の点検··············································· 38

5．2 地震後の点検······················································ 40

5．3 親水施設等の点検·················································· 41

5．4 機械設備を伴う河川管理施設の点検·································· 42

5．5 許可工作物の点検·················································· 45

第 6 節 河川カルテ························································ 46

第 7 節 河川の状態把握の分析、評価········································ 47

第 5 章 河道流下断面の維持管理のための対策·································· 48
第 1 節 河道流下断面の確保・河床低下対策·································· 48

河道の堆積土砂対策について
河床低下・洗掘対策について

第 2 節 河岸の対策························································ 50

第 3 節 樹木の対策························································ 50

第 4 節 河口部の対策······················································ 52

第 6 章 施設の維持及び修繕・対策············································ 53
第 1 節 河川管理施設一般·················································· 53
1．1 土木施設 ························································· 53
1．2 機械設備・電気通信施設············································ 53
第 2 節 堤防······························································ 55
2．1 土堤 ····························································· 55
2．1．1 堤体 ························································ 55
2．1．2 除草 ························································ 58
2．1．3 天端 ························································ 60
2．1．4 坂路・階段工················································· 61
2．1．5 堤脚保護工··················································· 62
2．1．6 堤脚水路····················································· 62
2．1．7 側帯 ························································ 62
2．2 特殊堤 ··························································· 63
2．2．1 胸壁構造の特殊堤············································· 64
2．2．2 コンクリート擁壁構造の特殊堤································· 64
2．3 霞堤 ····························································· 64
2．4 越流堤、導流堤、背割堤、二線堤···································· 65
第 3 節 護岸······························································ 66
3．1 護岸一般（コンクリート擁壁、矢板護岸以外）························ 66
3．2 コンクリート擁壁·················································· 70
3．3 矢板護岸 ························································· 70
第 4 節 根固工···························································· 71
第 5 節 水制工···························································· 72
第 6 節 樋門・水門························································ 73
6．1 本体 ····························································· 73
6．2 ゲート設備························································ 76
6．3 電気通信施設、付属施設············································ 76
第 7 節 床止め・堰························································ 77
7．1 本体及び水叩き···················································· 77
7．2 護床工 ··························································· 78
7．3 護岸、取付擁壁及び高水敷保護工···································· 78
7．4 魚道 ····························································· 79
7．5 ゲート設備························································ 79
7．6 電気通信施設······················································ 80
7．7 付属施設 ························································· 81
第 8 節 排水機場·························································· 82
8．1 土木施設 ························································· 82
8．2 ポンプ設備························································ 84
8．3 電気通信施設······················································ 85
8．4 機場上屋 ························································· 85
第 9 節 陸閘······························································ 85
第 10 節 河川管理施設の操作··············································· 86
第 11 節 許可工作物······················································· 87
11．1 基本 ···························································· 87
11．2 伏せ越し························································· 88
11．3 取水施設························································· 88
11．4 橋梁 ···························································· 89
11．4．1 橋台 ······················································· 89
11．4．2 橋脚 ······················································· 90
11．4．3 取付道路···················································· 90
11．5 堤外・堤内水路··················································· 90
第 7 章 河川区域等の維持管理対策············································ 92
第 1 節 一般······························································ 92

河川区域の維持管理
　河川区域境界及び用地境界について
　河川敷地の占用について
高規格堤防特別区域の維持管理
樹林帯区域の維持管理
河川保全区域及び河川予定地の維持管理
廃川敷地の管理
河川の台帳の調整

第 2 節 不法行為への対策·················································· 95

2．1 基本 ····························································· 95
2．2 ゴミ、土砂、車両等の不法投棄······································ 97
2．3 不法占用（不法係留船を除く。）への対策····························· 97
2．4 不法係留船（放置艇）への対策······································ 97
2．5 不法な砂利採取等への対策········································· 100
第 3 節 河川の適正な利用················································· 102

3．1 基本 ···························································· 102
3．2 河川の安全な利用················································· 102
3．3 水面利用 ························································ 103
第 8 章 河川環境の維持管理対策············································· 104

第 9 章 水防等のための対策················································· 108

第 1 節 水防のための対策················································· 108
1．1 水防活動等への対応··············································· 108
1．2 水位情報等の提供················································· 109
第 2 節 水質事故対策····················································· 111