ICS93.080.99 CCSR18 21 辽宁省地方标准 DB21/T4000—2024 辽宁省高速公路日常养护技术规范 TechnicalspecificationfordailyexpresswaymaintenanceinLiaoning Province 2024-08-30发布2024-09-30实施 辽宁省市场监督管理局  发布DB21/T4000—2024 I目  次 前言.....................................................................................................................................................................IIII 1范围...................................................................................................................................................................1 2规范性引用文件...............................................................................................................................................1 3术语和定义.......................................................................................................................................................2 4总体要求...........................................................................................................................................................2 5路基养护...........................................................................................................................................................3 5.1一般要求....................................................................................................................................................3 5.2日常巡查....................................................................................................................................................3 5.3路基排水设施保养...................................................................................................................................4 5.4路基排水及防护设施维修.........................................................................................................................5 6路面养护...........................................................................................................................................................9 6.1一般要求....................................................................................................................................................9 6.2日常巡查..................................................................................................................................................10 6.3路面保洁..................................................................................................................................................10 6.4沥青路面灾害维修.................................................................................................................................11 6.5水泥混凝土路面灾害维修.....................................................................................................................13 6.6路面附属工程维修.................................................................................................................................14 6.7路面标线..................................................................................................................................................15 7桥涵养护.........................................................................................................................................................16 7.1一般要求..................................................................................................................................................16 7.2日常巡查..................................................................................................................................................16 7.3桥面系日常养护.....................................................................................................................................18 7.4桥梁上部日常养护.................................................................................................................................20 7.5桥梁下部日常养护.................................................................................................................................21 7.6支座日常养护.................................................................................................................