52results about How to "Traffic impact" patented technology

The invention relates to a receding construction method of a cradle of a continuous girder bridge made of prestressing concrete, which is characterized in that the bridge surface of a bridge prefabricated by concrete is provided with a track and a door-shaped truss traveling device, and the width of a ceiling girder inside the door-shaped truss traveling device is wider than that of the bridge surface by 90cm-110cm; a front bottom cross beam and a rear bottom cross beam must extend to the outer side of an external mold by 45cm-55cm to form a main cradle truss, and an overhanging auxiliary doorframe is additionally arranged outside the main cradle truss, after the construction of a closure segment of the bridge prefabricated by concrete is finished, and precise rolling deformed steel barswith the diameter of 32 outside a box girder positioned on the overhanging auxiliary door frame are connected with the rear bottom cross beam to disassemble a rear hanging strip; a bottom mold frame is separated from a beam body by utilizing a manual spiral type jack to loose the precise rolling deformed steel bars positioned on the door frame and the front bottom cross beam; a leading chain or ahoist are utilized to drive the main cradle truss so that the cradle recedes in a slideway to a first cast-in-situ segment; and a bottom mold and the external mold are fallen by the leading chain or the hoist to disassemble the main truss.

The invention discloses a construction method for enabling a shallowly buried and darkly excavated tunnel to pass through a cottage area. The construction method comprises the following steps: excavating a tunnel hole of the constructed shallowly buried and darkly excavated tunnel from back to front through a step excavation process, and performing preliminary bracing on the tunnel hole formed by excavating from back to front in an excavating process, wherein the tunnel hole consists of an upper guide hole and a lower guide hole positioned right below the upper guide hole, the rear part of the tunnel hole is connected with a vertical well, the preliminary bracing structure of the tunnel hole comprises a plurality of grating steel frameworks for supporting the tunnel hole from back to front, a layer of bar-mat reinforcement suspended on the inner wall of the tunnel hole and a concrete layer jetted on the inner wall of the tunnel hole. The process for excavating the tunnel hole of the shallowly buried and darkly excavated tunnel comprises the following steps: I, excavating the initial segment of the upper guide hole; II, excavating the initial segment of the lower guide hole; III, synchronously excavating the upper and the lower guide holes. The construction method disclosed by the invention is simple in step, reasonable in design, convenient in construction, good in construction effect, capable of simply completing the construction process of the shallowly buried and darkly excavated tunnel that passes through the cottage area, and safe and reliable in a construction process.

The invention discloses a fire hose laying device for remote water supply. The fire hose laying device comprises a laying shell, a working cavity is formed in the laying shell, a through hole is formed in the inner wall of the right side of the working cavity and communicates with the outside, a ferrule releasing assembly is arranged in the working cavity, the ferrule releasing assembly comprisesa fixed support fixedly arranged on the inner wall of the front side of the working cavity, a sliding block arranged at the right end of the fixed support and capable of sliding front and back, a supporting sliding block arranged at the right end of the sliding block and capable of sliding up and down, a ferrule block placed at the upper end of the supporting sliding block, and ferrule tools fixedly arranged on the ferrule block and capable of extending out of the outside through the through hole. According to the fire hose laying device, the multiple ferrule tools are adopted, and the ferruletools are sequentially arranged on guardrail supporting columns along the way in a sleeving mode, so that during remote water supply, a water pipe is always close to a guardrail, and random running is prevented under the action of the guardrail supporting columns, and the influence on passing of other pedestrians and vehicles along the way is prevented.

The invention discloses an intelligent traffic operation and maintenance method and system with a vehicle induction function. The method includes: receiving monitoring video images from various monitoring points, analyzing traffic operation status and traffic equipment operation status, and generating operation and maintenance instructions according to the state analysis results; If the operation and maintenance instruction is vehicle induction, an induction strategy is generated; the induction strategy provides traffic strategies for at least two traffic directions, including: monitoring the traffic queue situation of each lane, when the traffic queue situation is detected When changing, the traffic priority corresponding to each lane is determined; according to the determined traffic priority corresponding to each lane, the traffic light signal in the traffic direction of each lane is regulated. The invention realizes the dynamically changing vehicle flow queue based on each lane, generates dynamically changing lane traffic priority, effectively balances the release sequence and release time of each lane, and realizes efficient induction of each lane's traffic flow.

The invention discloses an intermediate digging and sinking device for a large-diameter pipe pile, which comprises an auger drill rod, a pipe pile, a soil storage box and a power head. The pipe pile is a cylinder with a circular through hole in the middle, and the lower part of the pipe pile The two sides of the top are set in the shape of sharp knives, the auger rod is inserted into the pipe pile, the upper end of the auger rod is connected to the power head, and the lower end is connected to a reverse-wing expansion bit, and the upper end of the pipe pile is provided with the above-mentioned soil storage box. An intermediate support is inserted into the connection between the pile and the soil storage box, and the intermediate support is fixed with the column of the external power equipment to stabilize the pipe pile. A certain part of the lower part of the pipe pile is provided with a lower support. The column of the equipment is fixed to stabilize the pipe pile. The power head is connected with the wire rope on the rotating wheel of the external power equipment. The invention has the advantages of stability, safety, low cost, high benefit, no pollution, no noise, no soil extrusion, environmental protection and the like.