40results about How to "Low rebuilding cost" patented technology

The invention discloses a dual-layer glass fiber concrete pavement structure applicable to city roads. The pavement structure comprises a basic layer which is divided into an upper basic layer body and a lower basic layer body; the upper basic layer body is made from lean concrete; the lower basic layer body is made from cement stabilized crushed stone; a cement concrete face layer is laid on the basic layer, and a graded broken stone cushion layer is laid on the lower side of the basic layer; the cement concrete face layer is provided with dual-layer continuous glass fiber ribs and a supporting base, the dual-layer continuous glass fiber ribs are composed of upper-layer continuous longitudinal glass fiber ribs, lower-layer continuous transverse glass fiber ribs and lower-layer continuous longitudinal glass fiber ribs; transverse joints are arranged on the face layer at the interval of 150 m, and a pre-cut seam transversely penetrating a well cover is arranged on the well cover of the face layer; an emulsified asphalt slurry seal modified by styrene butadiene rubber latex is arranged between the upper basic layer body and the lower basic layer body; the basic layer and the face layer are provided with 2-3% road arch cross slopes. The pavement structure can effectively solve the problem that because a water system in a city road is rich or water drainage is not smooth, a pavement structure is seriously damaged in the early stage.

The invention discloses a method for detecting the visibility of urban roads. The method comprises the following steps that 1, monitoring subsystems which are installed and fixed on street lights of the urban roads are adopted to collect visibility information of the urban roads and send the collected visibility information to a control center; 2, on the basis of the obtained visibility information of the urban roads, the control center displays the visibility information of the corresponding roads in an electronic city map. The technical effects are achieved that the visibility monitoring system for the urban roads is easy to implement and relatively low in cost, the visibility conditions of the roads can be visually seen from the map, so that a driver conveniently and quickly determines the best driving route.

The invention discloses a mountable and demountable road bridge which comprises a bridge body. Demountable guardrails are arranged on two sides of the top surface of the bridge body. The bridge body consists of building blocks which are in fastener connection. The mountable and demountable road bridge has the advantages that the road bridge is convenient to mount and demount, can be secondarily used without damage during urban reconstruction, bridge reconstruction cost can be greatly reduced, and meanwhile, labor and material resources are saved. Besides, the mountable and demountable road bridge can be built over narrow rivers and is firm, durable, safe and reliable, and cost can be reduced greatly as compared with reinforced concrete structured bridge same in size.

The invention discloses a continuous reinforced concrete pavement structure suitable for an urban road. The pavement structure comprises a base layer which is divided into an upper base layer body and a lower base layer body. The upper base layer body is made of lean concrete. The lower base layer body is made of cement stabilized macadam. The base layer is paved with a cement concrete pavement layer, and the position under the base layer is paved with a graded broken stone hardcore. The cement concrete pavement layer is provided with double-layer continuous rebars and supporting bases. The double-layer continuous rebars comprise the upper-layer continuous longitudinal rebars, the lower-layer continuous transverse rabars and the lower-layer continuous longitudinal rebars. Transverse joints are arranged on the pavement layer at intervals of 150 m. A pre-cutting joint transversely penetrating through a well cover is arranged at the well cover on the pavement layer. A emulsified asphalt slurry seal modified through styrene butadiene rubber latex is arranged between the upper base layer body and the lower base layer body. The base layer and the pavement layer are provided with 2%-3% crown slopes. According to the continuous reinforced concrete pavement structure suitable for the urban road, the problem that in the urban road, the pavement structure is severely damaged early due to abundant water systems or impeded drainage can be effectively solved.