38results about How to "Resume traffic" patented technology

The invention discloses a blasting method of a separated type overpass. The blasting method of the separated type overpass includes the steps that (1) blasting cuts are designed, specifically, the blasting cuts are designed in the arch apex, arch soffits and arch feet of a bridge main arch ring correspondingly, and the blasting cuts are designed in part of stand columns of bridge small arch rings; (2) blasting points are designed, specifically, the multiple blasting points are designed on the bridge main arch ring and the small arch rings; (3) a blasting sequence is set, specifically, the arch apex, the arch feet, the arch soffits and the stand columns of the bridge are blasted in sequence; (4) blasting is performed, specifically, the bridge is blasted in the blasting sequence of the step (3); and (5) site cleaning is performed, specifically, ballast built after bridge blasting is cleaned up, and bridge blasting is completed. By means of the blasting method of the separated type overpass, the weight of a single blasted body can be effectively reduced, and the influence of dismantled bodies on the road surface and an underground pipeline is small; and during construction, a pre-treatment link of blasting construction is omitted, the whole structure of the bridge is not damaged, the traffic safety in the construction process is guaranteed, the whole road closure time is shortened, and the blasting method is safe, reliable and high in efficiency.

The invention provides a bituminous pavement preventative regeneration and maintenance method, comprising the following steps: firstly washing the pavement using water, heating the pavement using microwave to make the pavement clean and dry; spraying the bitumen regenerant on the dry pavement to make the regenerant sufficiently penetrate; heating the pavement using microwave until the pavement can be remolded; compacting and remolding the heated pavement to make the pavement compact and flat. The method is economical, practical, convenient and feasible without destruction of pavement.

The invention relates to the field of municipal administration, in particular to an auxiliary device for dismantling municipal facilities. The object of the present invention is to provide an auxiliary device for dismantling municipal facilities. Technical solution: An auxiliary device for dismantling municipal facilities, including a support frame, a steering wheel, a guardrail, a first screw removal mechanism, a power mechanism, and a second screw removal mechanism; a set of steering wheels is provided on the four legs below the support frame. The invention achieves the removal of the protective fence in the middle of the road by machine instead of manual, and can quickly remove multiple groups of protective fences on the long road, which greatly speeds up the progress of road reconstruction, quickly restores urban traffic, and enables operation The personnel control the operation of the machine indoors to avoid the danger of heat stroke in summer and frostbite in winter when the operator works outdoors for a long time.

The invention discloses a tunnel cement concrete pavement structure and a laying method. A prefabricated box structure is formed by using a reinforced concrete cover plate, a reinforced concrete U-shaped groove, a central connecting plate and a drainage pipe below the central connecting plate. A prefabricated box structure is set at the position of the wheel tracks, and there are through holes on the reinforced concrete cover plate of the road surface, which can effectively reduce the friction sound between the tires and the ground. The sound-absorbing material of the box structure and the inner wall can effectively reduce the noise in the tunnel. The drainage efficiency of the pavement can be improved by using the pavement penetrating hole and the box structure. The present invention has a simple structure, belongs to a prefabricated assembled structure, can be disassembled and assembled, has a small building area, is convenient for construction, and has a short construction period. When the pavement reinforced concrete cover is damaged or the surface anti-slip is missing, it is convenient and quick to remove and replace to restore traffic.

The invention relates to a method and a related device for calculating the position range of a railway vehicle (2) on a railway track (4). In this method, the position range corresponds to the section of the track (4) between the front end and the rear end, and it is characterized in that the method includes the following steps: by the sensor (8) on the track to identify the block (6) of said railway track (4) occupied by said railway vehicle (2); sending the identifier of the occupied block (6) to a ground computer (12); and by said ground A computer (12) calculates a location range (S d ).

The invention relates to an assembled inverted arch unit, an assembled inverted arch structure and a construction method, comprising an inverted arch unit which forms the second lining of an inverted arch after a plurality of blocks are connected, the inverted arch unit is a concrete prefabricated part, and the inverted arch unit The ring direction main reinforcement and the longitudinal main reinforcement are provided along the ring direction and longitudinal direction of the tunnel, and the ring direction main reinforcement protrudes from both sides of the inverted arch unit along the tunnel ring direction as a connection structure; the invention shortens the construction time of the second lining inverted arch and improves Improve tunnel construction efficiency and shorten construction period.