13results about How to "Reduce construction safety" patented technology

The invention relates to the technical field of electric power stringing construction methods, in particular to a power transmission line crossing stringing construction method. The construction method comprises the following steps that before power transmission line crossing stringing construction, the position for parking a crane is designated on a construction site, and the rotary stringing construction crossing supporting device is installed on a suspension arm of the crane; commanding the crane to extend the lazy arm to a preset height and a preset position by a commander, and ensuring that the cable is positioned between the unfolded extension arms; the lifting support is driven to rotate through the rotating mechanism, the angle of the lifting support is adjusted through the lifting mechanism, then the position of the stretching arm is adjusted, the cable is folded to the target posture, and then related construction operation can be carried out. The method is used in the stringing construction process, a traditional spanning frame erecting construction mode is replaced, the site construction progress can be effectively accelerated, manpower, financial resources and time cost are saved, occupied construction area is reduced, construction risks and potential safety hazards are greatly reduced, construction flexibility is improved, and universality is high.

The invention relates to the technical field of electric power stringing construction methods, in particular to a power transmission line crossing stringing construction method. The construction method comprises the following steps that before power transmission line crossing stringing construction, the position for parking a crane is designated on a construction site, and the rotary stringing construction crossing supporting device is installed on a suspension arm of the crane; commanding the crane to extend the lazy arm to a preset height and a preset position by a commander, and ensuring that the cable is positioned between the unfolded extension arms; the lifting support is driven to rotate through the rotating mechanism, the angle of the lifting support is adjusted through the lifting mechanism, then the position of the stretching arm is adjusted, the cable is folded to the target posture, and then related construction operation can be carried out. The method is used in the stringing construction process, a traditional spanning frame erecting construction mode is replaced, the site construction progress can be effectively accelerated, manpower, financial resources and time cost are saved, occupied construction area is reduced, construction risks and potential safety hazards are greatly reduced, construction flexibility is improved, and universality is high.

The invention discloses a section temperature monitoring system for a concrete girder in a long-span bridge, and is applied to the technical field of construction safety. Comprising a temperature monitoring module, a modeling simulation module, a data analysis module and a safety early warning module. The temperature monitoring module is arranged at a monitoring point of a bridge, collects the temperature at the monitoring point in real time and sends the temperature to the modeling simulation module; the modeling simulation module establishes a three-dimensional finite element model of the bridge based on design parameters of the bridge and data acquired by the temperature monitoring module; the data analysis module analyzes the three-dimensional finite element model of the bridge, analyzes the influence of temperature on bridge safety parameters and corrects the bridge safety parameters; and the safety early warning module performs construction safety early warning based on the bridge safety parameters corrected by the data analysis module. The influence of the temperature is analyzed by monitoring the section temperature of the bridge, early warning is performed on construction safety, and the safety of the construction process is improved.

The invention provides a pier top connecting structure of a composite structure bridge based on steel and concrete and a construction method. A cross beam pouring area is formed between the ends of every two adjacent standard simply-supported units, and end steel plates, second shear nails, second tooth keys and fourth bridge floor post-pouring areas are arranged on composite beams participating in butt joint in the standard simply-supported units; a plurality of second tooth keys are arranged on the end face, close to the cross beam pouring area, of the concrete rib plate, a fourth bridge deck post-pouring area is located at the end, close to the cross beam pouring area, of the bridge deck slab, an end steel plate is arranged at the end, close to the cross beam pouring area, of the steel beam, and a plurality of second shear nails are arranged on the face, away from the steel beam, of the end steel plate; reinforcing steel bars are arranged in the cross beam pouring area and the fourth bridge floor post-pouring areas of the two adjacent standard simply-supported units, and concrete is poured together in the cross beam pouring area to form a connecting cross beam. The problem that a traditional simply-supported variable continuous structure cannot adapt to system conversion between composite beams in a multi-material composite web form is solved.

The invention discloses a concrete retaining wall and a construction method thereof.The concrete retaining wall comprises a concrete retaining wall body, and at least one reinforcing rib is embedded in the concrete retaining wall body; the decoration layer covers the outer vertical face of the concrete retaining wall body, the decoration layer comprises at least one prefabricated plate, and all the prefabricated plates are continuously or discontinuously installed on the outer vertical face of the concrete retaining wall body from bottom to top in the height direction of the concrete retaining wall body; each prefabricated slab comprises a consolidation layer and a plurality of decoration pieces, the part, not exceeding two parts of the height, of each decoration piece is embedded in the consolidation layer, and the remaining part of each decoration piece can be embedded in the outer vertical face of the concrete retaining wall body; by means of the precast slabs, the bonding strength between the cobblestones and the concrete retaining wall body is enhanced, the problems that in a traditional construction mode, new and old materials are not firmly bonded and are prone to separation and falling off are solved, the decoration and protection effects of the concrete retaining wall are guaranteed, the requirement for high-altitude operation is reduced, the construction difficulty and potential safety hazards are reduced, and the construction cost is saved; and resource waste is avoided.

The invention relates to the field of integral replacement of a sintering machine round roller, in particular to an integral quick replacement method for the sintering machine round roller, which comprises the following steps of: uniformly mounting symmetrical hanging points, chain blocks and hoisting belts on the front and rear side walls of a blanking chute above the round roller along the axial direction of the round roller; first lifting points are arranged on the striker plates on the two sides of the round roller; a lifting point II is arranged on a driven shaft of the round roller; an electric capstan is mounted on the plant stand column corresponding to the lifting point II; the round roller is pre-supported through symmetrical hanging points on the discharging chute, and the connection between the mounting bases at the two ends of the round roller and the base is removed; then a round roller is put down; the round roller is horizontally moved out in the axial direction through cooperation of the chain blocks on the symmetrical hanging points of the discharging chute, the electric capstan and the electric hoist, then the round roller is rotated by 90 degrees in the horizontal plane, and then the round roller is transferred to a working area of a workshop crane through the moving trolley. The round roller body does not need to be disassembled, the lower screen roller does not need to be disassembled, the replacement procedure is greatly simplified, and the construction difficulty and potential safety hazards are effectively reduced.

The utility model relates to the field of mobile cranes, and discloses a mobile crane walking device based on a suspension bridge main cable, which comprises a hoisting mechanism, two rails and two walking mechanisms, the two walking mechanisms are respectively arranged on two sides of the hoisting mechanism, the lower ends of the two walking mechanisms are respectively hinged with at least two walking roller assemblies, and the two walking roller assemblies are arranged on the rails. The walking roller assembly can move on the track, and the track is made of rigid materials and arranged on a suspension bridge main cable. The cable is not easy to clamp, and the main cable is not damaged.

The utility model provides a steel bar positioning structure for building construction, which relates to the technical field of building construction and comprises a fixed bottom plate, two adjusting devices and a plurality of fixing devices, the two adjusting devices are fixedly connected to the top of the fixed bottom plate, and the fixing devices are fixedly connected to the side walls of the two adjusting devices respectively. At the moment, due to the fact that a first spring loses pressing force applied by a pressing block, the first spring can drive a sliding block to slide in a sliding rail, while the sliding block slides, the reinforcing steel bar can extrude an auxiliary fixing assembly, the auxiliary fixing assembly can apply extrusion force to the auxiliary fixing assembly after being subjected to the extrusion force, and therefore the auxiliary fixing assembly is extruded towards the two sides; according to the device, a large amount of manpower and time do not need to be consumed, the construction cost is reduced, the problem that the positions and the intervals of the steel bars are deviated is solved, and the influence on the construction quality and safety is reduced.

The utility model relates to cable laying technical field discloses a kind of auxiliary devices for cable laying, comprising: mounting plate, several mounting holes are equipped on it;U bracket, it is fixed in the front side of mounting plate, the inboard is equipped with insulating plate, and bundling hole is equipped on the side wall of U bracket and insulating plate;Pulley, it is detachably located in the front side of mounting plate, and located between adjacent U bracket, and the height of its upper wall can be higher than the height of the bottom of U bracket.The utility model has the advantages that: while carrying out good supporting effect, it has the effect of reducing resistance, which is conducive to cable laying.

This invention proposes a method for the overall sliding removal of the catwalk surface layer of a long-span suspension bridge, belonging to the field of bridge construction technology. This method uses the steel wire ropes of the tower top winch, the anchor winch, and the ear plates to form a whole for the side span catwalk surface layer. The side span catwalk surface layer is then lifted using the steel wire ropes of the tower top winch and the anchor winch, followed by the dismantling of the lifting ropes. After dismantling the lifting ropes, the side span catwalk surface layer is slid down entirely using the steel wire ropes of the tower top winch and the anchor winch. This fundamentally solves the technical problem of overloading the main cable side span caused by raising the lifting ropes in existing technologies, ensuring the construction safety during the removal of the side span catwalk surface layer.

The present application relates to a kind of narrow deformation joint hoisting forming steel formwork and aluminum formwork combined construction method, construction process flow is steel formwork processing→steel formwork hoisting→steel formwork reinforcement→formwork checking, using recyclable forming steel formwork instead of traditional plywood and foam board as deformation joint shear wall formwork, its concept is to use forming steel formwork to set up download deformation joint shear wall formwork and traditional deformation joint formwork reinforcement mode, concrete forming quality is good, and expansion mold, leakage and other conditions are very few.Recyclable forming steel formwork and aluminum formwork combined construction formwork speed is fast, formwork turnover times are more, reduce labor input, reduce construction cost and safety hazard, while eliminating the use of foam board, conducive to environmental protection.

The invention discloses a ladder fixing device, and relates to the technical field of ladder supporting components. The ladder fixing device comprises a ratchet wheel tightening device, a rope belt and anti-skid rubber, and the ratchet wheel tightening device is fixed to a ladder and used for tightening or adjusting the rope belt; the rope belt is tightened and fixed through the ratchet tightening device after being wound on a fixed object, and the inclination angle of the ladder can be adjusted by adjusting the tightening degree of the rope belt; and the anti-skid rubber is used for increasing the friction force between the ladder and the contact surface. According to the invention, the ladder can be stably placed in various environments by adopting the combination of two fixing modes of contacting the rubber with the cross arm and fixing the ratchet wheel tightening device by the rope belt and adopting the anti-skid design, so that the potential safety hazard caused by shaking, sliding or inclining of the ladder is reduced, and the construction safety is improved. Meanwhile, adjustment can be carried out according to ladders of different shapes and sizes and angle steel and electric pole fixing points, various requirements of the transformer substation in the complex working environment can be met, and the transformer substation can be widely applied to different installation and maintenance scenes.

The invention discloses a gas safety inspection method and related equipment, and relates to the technical field of gas safety inspection.The gas safety inspection method comprises the steps that to-be-detected gas is obtained, and a gas sensor is used for detecting the to-be-detected gas, the method comprises the following steps: acquiring a plurality of gas types contained in to-be-detected gas and a current gas concentration corresponding to each gas type, and predicting a future gas concentration of each gas type based on a preset gas concentration prediction model, the plurality of gas types and the current gas concentration, and based on the various gas types, the current gas concentration and the future gas concentration, determining a gas safety inspection result of the to-be-detected gas. The future gas concentration is predicted by using the preset gas concentration prediction model, and the gas safety inspection result of the to-be-detected gas is obtained based on the future gas concentration and the current gas concentration, so that a worker can find gas abnormity in advance, and the construction safety is improved.