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 door frame 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 bars with 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 a hoist 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 deformation monitoring method for shallow-buried excavation tunnel construction. The deformation monitoring method comprises the following steps: 1) digging a tunnel: digging a tunnel cavity for a constructed shallow-buried excavation tunnel from back to front, primarily supporting the dug tunnel cavity from back to front during the digging process, and forming a primary supporting structure, wherein the primary supporting structure comprises a plurality of grating steel frames for supporting the tunnel cavity from back to front, and each grating steel frame is composed of an arch supporting steel frame and left and right vertical supporting steel frames; 2) arranging monitoring points: arranging multiple sets of supporting state monitoring points on the primary supporting structure of the constructed tunnel cavity from back to front during the digging process, and meanwhile, arranging a plurality of ground surface settlement monitoring points in a construction area of the constructed shallow-buried excavation tunnel from back to front; 3) monitoring the deformation. The method provided by the invention has the advantages of simple steps, reasonable design, convenience in construction, good use effect and capability of effectively monitoring the stability of the constructed shallow-buried excavation tunnel and the ground surface settlement.

The invention relates to large-span continuous rigid beam construction crossing railways, roads, personal compact districts and steep construction terrains, in particular to a hanging basket cantilever method construction method of a large-span continuous rigid beam sidespan cast-in-place beam section, solving the problems of long construction, high cost and inconvenience for surrounding environment due to difficulty in building a bracket, large interference on travelling and large safety risk during construction crossing places of railways, roads, personal compact districts and steep construction terrains. The hanging basket cantilever method construction method of the large-span continuous rigid beam sidespan cast-in-place beam section comprises the following steps of: constructing cast-in-place sections 1# and 2#, releasing inner and outer slippage suspension points; integrally moving a hanging basket main member and a hanging basket bottom mould backwards; installing a bottom mould of a cast-in-place section 3#; and forwards moving the hanging basket main member to the cast-in-place section 2# and constructing the cast-in-place section 3#. The construction method in the invention is simple in operation, and is widely suitable for sidespan cast-in-place beam section construction of large-span continuous rigid beams.

The invention provides an intersection traffic stream modeling and a self-adaption control method and a system. The method comprise steps of perceiving driving-in and driving-out facts, driving-in and driving-out time, numbers of driving-in vehicles at all entrances, numbers of vehicles going straight at the entrances, driving-out and numbers of vehicles at left-handed turning exits of vehicles at all entrances and exits in a signal period; calculating average delay time of the vehicles passing the entrances and the exits of the intersection according to the driving-in and driving-out facts and time; calculating vehicle queuing length according to numbers of driving-in and driving-out vehicles; establishing a traffic stream digital module of the intersection by taking the average delay time of traffic streams in the entrance directions as discrete state variables, taking green time in corresponding direction as control variables, and taking queuing lengths in all directions as output variables; and performing real-time control for the traffic stream digital module by use of the self-adaption control method. The system corresponds to the method. The method and the system are advantaged by long service lifetime, easy maintenance and precise control of traffic signals.

The invention discloses a concrete continuous box girder of a corrugated steel web for a curved bridge. A curved corrugated steel web concrete continuous box girder is formed by a prefabricated linear corrugated steel web concrete I-shaped beam unit (1), namely the prefabricated linear corrugated steel web concrete I-shaped beam unit (1) is erected on a pier body (9) and a capping beam (8); the I-shaped beam is regarded as a supporting point to pour top and bottom board wet joint concrete (2) and top board cantilever section flange concrete (3) to form a box girder; a curved shape of the curved bridge is subjected to transverse width adjustment fit by using a flange cantilever section, and a single-hole box girder is constructed; and the continuous box girder is formed by pouring beam concrete (4) of each hole box girder. The concrete continuous box girder provided by the invention uses factory-like prefabrication and bracket-free construction, so as to be beneficial to ensuring and accelerating a construction progress. The standard factory-like construction of the corrugated steel web prefabricating component can effectively ensure the engineering quality, and has the advantages of simple structure, good economical efficiency and the like.

The invention discloses a multifunctional check valve capable of cleaning away and filtering impurities conveniently. The multifunctional check valve comprises a valve body, an adjusting assembly, a motor and a limiting assembly. A mounting pipe and a water outlet pipe are arranged at the left end and the right end of the valve body correspondingly, a fixed ring is fixed to the right side of a movable rod, the motor is fixed to the right side of the valve body, the output end of the motor is connected with a lead screw, and trapezoidal blocks are slidably connected to the upper end and the lower end in the mounting pipe. The multifunctional check valve capable of cleaning away and filtering impurities conveniently is provided with a sliding groove and limiting blocks, impurities in fluid can be filtered through a filter screen in a water inlet pipe, blockage caused by impurity attachment is avoided, the water inlet pipe and a filter plate can be conveniently mounted in the mounting pipe through the sliding groove in the surface of the water inlet pipe, meanwhile, the water inlet pipe can be rotated to enable the limiting blocks at the two ends of the inner wall of the mounting pipe to be clamped into limiting grooves in the surface of the water inlet pipe, so that the water inlet pipe is limited, the water inlet pipe can be conveniently dismounted after long-time use to replace the filter plate, and practicability is improved.

The invention discloses a traffic signal lamp emergency control platform under an emergency condition, and a control method thereof. The control platform comprises three portions, i.e., a hand-held terminal module I, a client module II and a server module III, wherein the hand-held terminal module I is placed on an emergency vehicle, the client module II runs at a traffic signal lamp control end, and the server module III runs on a server; and the hand-held terminal module I is connected with the client module II through a wireless network, and the client module II and the server module III are connected through a special-purpose network. According to the invention, under the condition that the quantity of emergency lanes on a city main traffic road is reduced, emergency vehicles executing tasks are enabled to pass preferentially, such that the purpose that common vehicles make way for the emergency vehicles under the emergency condition to enable the emergency vehicles to pass preferentially is realized.

The invention relates to the field of urban traffic and particularly relates to an intersection bridge. The intersection bridge comprises a high level bridge and two arc-shaped bridges, which are arranged longitudinally, and a ground level road horizontally arranged below the high level bridge. An upper approach bridge and a lower approach bridge of each arc-shaped bridge are respectively arranged on the two sides of an approach bridge of the high level bridge, a main bridge of each arc-shaped bridge is arranged on a ground end of the approach bridge of the high level bridge, the upper approach bridge and the lower approach bridge of each arc-shaped bridge are both connected with the same side of the ground level road, high level bridge exits are respectively arranged at the junctions of the upper approach bridges of the arc-shaped bridges and the approach bridge of the high level bridge, and high level bridge entrances are respectively arranged at the junctions of the lower approach bridges of the arc-shaped bridges and the approach bridge of the high level bridge. According to the intersection bridge, automobiles at any intersection can run to the other three intersections, can turn around through a ring road, and only can run on one driving lane, so that a whole driving process is simplified, a driver cannot be confused, the transportation efficiency is further improved, and the road congestion problem can be solved.

The invention discloses a pre-bending construction method for steel-concrete combined girders, and is applied to the technical field of bridge construction. The pre-bending construction method includes S10, mounting steel girders, arranging pre-bending girders below the steel girders along the vertical direction of bridge girders, and connecting two ends of the pre-bending girders to the steel girders through pre-bending and tensioning pieces directly or indirectly; S20, arranging pre-bending supports at midspan positions of the steel girders and on the pre-bending girders; S30, pre-bending the steel girders by tensioning the pre-bending and tensioning pieces and/or lifting the pre-bending supports; S40, pouring concrete on the steel girders to form concrete bridge faceplates. The pre-bending construction method has the advantages that the pre-bending girders are arranged below the bridge girders and are connected with the steel girders through the pre-bending and tensioning pieces, the pre-bending supports are arranged between pre-bending bridge spans and the steel girders, and pre-bending force is applied to the steel girders through the pre-bending and tensioning pieces at two ends of the pre-bending girders and/or pre-stressing force application pieces on the pre-bending supports, so that erection of temporary support frames (support piles) is avoided, passing of vehicles below bridges is not affected greatly, and great convenience is brought to construction.

The invention relates to a valve, which comprises a valve body, a valve core, a valve rod, a valve rod mounting sleeve and a valve rod mounting passage, wherein the valve rod mounting passage is formed by an internal cavity of the valve rod mounting sleeve; the valve rod is arranged in the valve rod mounting sleeve, is connected with the valve core and is provided with a groove; and the groove runs through in the direction of the longitudinal axis of the groove. The valve is characterized in that: one fourth circumference of the valve rod mounting sleeve is provided with a plurality of through holes corresponding to the height of the groove; the longitudinal axes of the through holes are approximately perpendicular to the longitudinal axis of the valve rod mounting passage; when the flow rate of the valve is required to be locked at a certain value, the groove on the valve rod can be turned to be communicated with a corresponding through hole; and a device for preventing the valve rod from rotating is arranged in the through hole and penetrates through the through hole to be engaged with the groove on the valve rod. The valve has the advantages of simple structure, convenience in operation and capability of controlling and locking the flow rate.

The invention relates to a trenchless buried type high voltage power cable bellows which is characterized in that a raised ring part (3) is formed along the circumference of an outer wall (1) of the bellows, and a circumference formed by the closed raised ring part is concentric with that of a radial cross-section of the bellows; and a corresponding groove ring part (4) is formed on the inner wall (2) of the bellows along the shape of the raised ring part (3). According to the trenchless buried type high voltage power cable bellows provided by the invention, the ground is not needed to be excavated during buried construction, and the buried construction has no greater impact on city traffic and running. The trenchless buried type high voltage power cable bellows has favorable bendability and moderate ductility by adopting a gap formed between the raised ring part and the groove ring part and selecting a bellows body material. The trenchless buried type high voltage power cable bellows can be naturally bent to correspond to complicated and changeable paved lines under the condition that the paved lines are full of twists and turns. The coiled bellows occupies small area, which is beneficial to construction and transportation in a narrow environment. Meanwhile, welding points for connecting pipelines are not needed, and therefore, the entire quality of the pipelines is improved.

The invention discloses a buried type light-emitting indication identification body. The light-emitting indication identification body comprises a strip-shaped light-emitting module (1), a strip-shaped module frame (2) and a strip-shaped mounting seat (3); the strip-shaped light-emitting module (1) embedded in the strip-shaped module frame (2) emits light after being powered on to form a pattern mark with an indication function, the strip-shaped module frame (2) is fixedly mounted on the strip-shaped mounting seat (3), the strip-shaped module frame (2) and the strip-shaped mounting seat (3) are buried in a road surface, and a light-transmitting surface of the strip-shaped light-emitting module (1) does not exceed the road surface. The buried type light-emitting indication identification body has a good light-emitting guiding/warning function, can replace paint marked lines at multiple positions on a road, has the advantages of being high in pressure resistance, large in variability, high in safety, wide in weather resistance and short in construction period, and is very wide in application range.

The invention relates to the technical field of road infrastructure, and discloses an anti-settling base with high stability. The anti-settling base comprises a base body with a circular cross section, wherein the inner portion of the base body is provided with a through hole with a circular cross section, the annular outer side wall, close to the top, of the base body is fixedly connected with afixing block with an annular cross section, a plurality of T-shaped sliding grooves are evenly and equidistantly formed in the annular inner side wall of the base body and distributed in an annular matrix, the T-shaped sliding grooves are internally and slidably connected with T-shaped sliding blocks, and the ends, away from openings of the T-shaped sliding grooves, of the T-shaped sliding blockspenetrate through the corresponding openings of the T-shaped sliding grooves, extend to the outside and are jointly fixedly connected with a supporting block with an annular cross section. The anti-settling base with the high stability has the advantages that the force of a manhole cover is decomposed through the T-shaped sliding blocks, the force is consumed through two tension springs and two springs, and the settlement of the manhole cover is prevented under the premise of not affecting the road traffic.

The invention discloses a ticket gate device. The ticket gate device comprises a ticket gate shell. A gate bar is arranged in the ticket gate shell. A gate bar rotating groove is formed in the ticket gate shell. The gate bar is located in the gate bar rotating groove. A gate bar controlling device is arranged in the ticket gate shell. The gate bar controlling device comprises a rotating wheel, a connecting shaft and a driving device, wherein the connecting shaft is used for driving the rotating wheel to rotate, and the driving device is used for driving the connecting shaft to rotate. The ticket gate device is simple in structure, and people can conveniently pass through the ticket gate device.

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 relates to the field of plug valves, and discloses a long-service-life plug valve for industrial oil production. The long-service-life plug valve comprises a valve body, a connecting flange, a valve connecting pipe, a first connecting plate and a second connecting plate, and is characterized in that a clamping groove is formed in the outer surface of the connecting flange, and a filtering structure is arranged in the valve connecting pipe; a groove is formed in the outer surface of the upper end of the first connecting plate, a first sealing ring is arranged in the groove, bolt holes are formed in the outer surface of the first connecting plate and the outer surface of the second connecting plate, fixing bolts are arranged in the bolt holes, and a sealing gasket is arranged on the outer surface of the first connecting plate; and a through hole is formed in the outer surface of the sealing gasket, a fixing nut is arranged on the outer surface of the lower end of the second connecting plate, and a second sealing ring is arranged on the outer surface of the fixing nut. The long-service-life plug valve for industrial oil production has the advantages of being long in service life, convenient to disassemble and capable of limiting a handle.