Expressway maintenance engineering construction organization design
In addition to highway patrol and inspection, daily cleaning and maintenance, according to the disease situation of * * Expressway in 2004, the maintenance works mainly focus on the following highway bridge diseases: a Pavement: maintenance and repair of various cracks, settlements, potholes, ruts, bumps, settlements, waves and washboards, frost heave and boiling, pockmarks and looseness, oil flashing, peeling, edge gnawing, polishing, and bridge asphalt pavement; b、 Subgrade: gully, subgrade settlement, mud boiling, collapse, mortar rubble or shotcrete anchor slope protection damage, shoulder stone defect, prefabricated shoulder cracking, etc; c、 Bridge tunnel: expansion joint damage, bridge pier cracks, cone slope damage, bridge abutment back subsidence, paint corrosion, etc; d、 Greening: conservation and maintenance of plants and seedlings, and withering of seedlings; e、 Traffic facilities: some signs, reflective signs, isolation net damage, steel guardrail alignment, deformation, anti glare plate defect, marking pollution and lack;