Expressway maintenance engineering construction organization design
In addition to road patrol and inspection, daily cleaning and maintenance, according to the disease situation of * * Expressway in 2004, the maintenance works mainly focus on the following road bridge diseases: a. Pavement: various cracks, settlements, potholes, ruts, bumps, settlements, waves and washboards, frost heaving and boiling, pockmarks and looseness, oil flashing, peeling, edge gnawing, polishing Maintenance and repair of asphalt pavement on bridge deck; 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;