目 次
1． 概要 ......................................................................................................................................................... 1
1.1 吹付受圧板工法の目的 ........................................................................................................................ 1
1.2 吹付受圧板工法の概要 ........................................................................................................................ 3
1.3 工法検討の流れ ................................................................................................................................... 5
1.4 適用性の判断 ....................................................................................................................................... 6
1.5 用語の定義........................................................................................................................................... 8
2． 調査 ......................................................................................................................................................... 9
2.1 基本 ...................................................................................................................................................... 9
2.2 調査の方法と実施内容 ......................................................................................................................10
3． 計画・設計 ............................................................................................................................................15
3.1 設計の考え方 .....................................................................................................................................15
3.2 要求性能.............................................................................................................................................16
3.3 地山補強土工 .....................................................................................................................................17
3.4 吹付受圧板工 .....................................................................................................................................19
3.5 増厚吹付工.........................................................................................................................................25
3.6 背面空洞注入工 .................................................................................................................................26
3.7 水抜き孔設置工 .................................................................................................................................28
3.8 頭部処理工.........................................................................................................................................29
4． 施工計画................................................................................................................................................30
4.1 概要 ....................................................................................................................................................30
4.2 施工フロー.........................................................................................................................................31
4.3 準備工 ................................................................................................................................................35
4.4 地山補強土工 .....................................................................................................................................37
4.5 背面空洞注入工 .................................................................................................................................39
4.6 水抜き孔設置工 .................................................................................................................................41
4.7 吹付面清掃工 .....................................................................................................................................42
4.8 吹付受圧板工 .....................................................................................................................................43
4.8.1 補強部材組立工 ..........................................................................................................................43
4.8.2 繊維補強モルタル吹付工 ...........................................................................................................45
4.9 増厚吹付工.........................................................................................................................................47
4.9.1 連結ボルト工 ..............................................................................................................................47
4.9.2 繊維補強モルタル吹付工 ...........................................................................................................48
4.10 頭部処理工.......................................................................................................................................49

4.11 付帯工 ..............................................................................................................................................50
4.12 使用機材 ..........................................................................................................................................51
5． 施工管理................................................................................................................................................52
5.1 施工管理の基本 .................................................................................................................................52
5.2 品質管理.............................................................................................................................................53
5.3 出来形管理.........................................................................................................................................54
6． 参考資料................................................................................................................................................55
6.1 吹付受圧板の供試体を用いた鉛直載荷試験....................................................................................55
6.1.1 実験概要......................................................................................................................................55
6.1.2 吹付受圧板の設計押し抜きせん断耐力 ....................................................................................55
6.1.3 鉛直載荷条件 ..............................................................................................................................57
6.1.4 供試体の構築条件.......................................................................................................................58
6.1.5 載荷試験結果 ..............................................................................................................................59
6.1.6 吹付受圧板の許容荷重 ...............................................................................................................60
6.2 吹付受圧板の寸法および強度より推定されるのり面工低減係数..................................................61
7． 参考文献................................................................................................................................................63

本要領に記載されている老朽化吹付のり面の補強工（吹付受圧板工法 FSC パネル）は、公益財団法人鉄道総合技術研究所と日特建設株式会社が共有する以下の特許により保護されています。
特許第 6745573 号：ロックボルト保持用治具及びそれを用いた吹付工法
特許第 6296963 号：地山補強方法及び構造
特許第 6556061 号：補強部材保持用治具及びそれを用いた吹付工法
また、「吹付受圧板」と「FSC パネル」は日特建設株式会社の登録商標です。