61results about How to "Avoid construction accidents" patented technology

The invention relates to a waterproof adhesive. It is composed of asphalt, petrol, resin, rubber and the filler, and is produced by: dissolving the asphalt in petrol, and adding rubber to modify; then adding resin and the filler; last mixing them uniformly. It can be used for succedaneum of asphalt and soldering seam cream. The product is safety and doesn't pollute environment and can work in any season or weather. It can extend life of damp-proof seams of buildings.

The invention discloses a building curtain wall installation device. The building curtain wall installation device comprises a building main body and a bolt, an upper side of the building main body isprovided with a pedestal, and a lifting machine main body is fixed on the pedestal; the bolt passes through an auxiliary fixing piece to be in threaded connection with the lifting machine main body,the lower sides of the pedestal and a base plate both are provided with lifting grooves, and a first electric telescopic rod is arranged in each limiting groove, meanwhile, a self-locking idler wheelis fixed at the lower side of the first electric telescopic rod, a winding machine is fixed at the upper side of the lifting machine main body, a second bearing steel wire is fixed at the lower side of a first support plate, a storage lifting basket is arranged at the upper side of the bottom plate, a sliding chute is formed on a first fixed plate, a second support plate is fixed at a hydraulic cylinder through an upper side piston rod, and a driving motor output end is rotationally connected with a clamping mechanism. The building curtain wall installation device is provided with the clampingmechanism and a sucking disk, with the sucking disk, a building curtain wall can be fixed through suction, and with the clamping mechanism, auxiliary fixing is executed after fixing through suction.

The invention discloses electric shock prevention on-site intelligent supervision complete equipment for electric power operators, and belongs to the technical field of electric power informatization.The equipment comprises portable electronic supervision equipment and a system automatic identification device. According to the portable electronic supervision equipment, a polygon which is definedwith a safety facility identified by the intelligent supervision complete equipment adopted as a vertex is used as an operation site electronic fence. According to the system automatic identificationdevice, behavior judgment is performed by utilizing a linkage tracking technology and a moving object detection technology, a sound-light alarm device is used for timely warning and prompting on-sitesupervisors in real time, and the on-site supervisors persuade people who want to enter a construction site to leave. According to the electric shock prevention on-site intelligent supervision complete equipment for electric power operators of the invention, identity recognition and moving direction tracking prediction of the people in a monitoring area are realized by utilizing the electronic fence technology, the moving object detection technology and the target tracking technology, non-operating personnel are warned in time through a built-in multi-section audible and visual alarm, and meanwhile, the on-site supervisors are prompted in real time.

The invention discloses a manual hole digging pile concrete precast retaining wall and a construction method thereof. The manual hole digging pile concrete precast retaining wall comprises retaining wall bodies and elastic structural layers; and the retaining wall bodies are connected end to end to form the complete concrete retaining wall, and the elastic structural layers are arranged on the outer sides of the retaining wall bodies. According to the manual hole digging pile concrete precast retaining wall, by arranging the elastic structural layers on the outer sides of the retaining wall bodies, the effects of compacting soil, preventing soil collapse and delaying the collapse time are realized, and the personal safety of constructors is better guaranteed.

The invention discloses a long slope concrete grooving machine and relates to the technical field of concrete construction. The problems that slope concrete grooving needs to be carried out manually in the prior art, operation is difficult and the grooving efficiency is low are solved. According to the main technical scheme, the long slope concrete grooving machine comprises an X-direction walking device, a support, a Y-direction walking device, a grooving device and a water tank. The support comprises a linear guide rail, a height adjusting device used for adjusting the height of the support, the support is installed on the X-direction walking device, the X direction is perpendicular to the Y direction, the grooving device is installed in the linear guide rail, the Y-direction walking device drives the grooving device to move along the linear guide rail, and a water outlet pipe of the water tank is arranged above a saw blade of the grooving device. In the preferred long slope concrete grooving machine scheme, a roller is hinged to the lower end of a supporting column and can rotate around the axial direction of the supporting column.

The invention discloses remote control based pipeline dredging equipment for a water conservancy project, and relates to the field of water conservancy projects. By aiming at the problems that an existing pipeline dredging device for a water conservancy project is low in dredging efficiency, generally, dredging is achieved manually, and construction risks exist, the following scheme is provided, wherein the equipment comprises a mounting box, a storage battery and a driving motor are fixedly mounted at the top end of the mounting box, a main gear disc is fixedly connected to the side, away from the storage battery, of an output shaft of the driving motor, a mounting plate is fixedly connected to one side of the mounting box, a mounting groove is formed in the mounting plate, an air cylinder is fixedly mounted in the mounting groove, the end of a piston rod of the air cylinder is fixedly connected with a push rod, and the end of the push rod extends into the mounting box and is fixedly connected with a push plate. According to the equipment, the dredging efficiency of a water conservancy project pipeline can be effectively improved, meanwhile, manpower can be replaced to conduct pipeline dredging operation, the risk of pipeline dredging is reduced, and the equipment is suitable for application and popularization.

The invention discloses a concrete feed delivery pipe position measuring device for underwater filling pile construction. The concrete feed delivery pipe position measuring device includes a sensing unit and a display control unit; the sensing unit includes a plurality of surface pressure sensors, wherein the surface pressure sensors are mounted on a mounting frame in a fixed-spaced mode from thebottom to the top, the mounting frame is fixedly connected to two or more welding blocks through bolts, and the welding blocks are welded to the outer wall above a discharging hole of the concrete feed delivery pipe from the bottom to the top; and the surface pressure sensors are connected in series and then connected to the display control unit. The concrete feed delivery pipe position measuringdevice has the beneficial effects that in the operation process of the underwater concrete filling pile, operators in the site can be effectively guided to complete lowering and lifting operation of the concrete feed delivery pipe, and the actions that quality is ensured, and construction accidents are avoided are achieved.

The invention relates to a new device capable of intuitively and effectively monitoring planar swinging motion of drill derrick. The device comprises a laser, a planar photoelectric sensor array, an encoder, a computer interface card, and a software program. The laser is disposed at the top of the drill derrick, when the laser swings with the motion of the drill derrick, the laser beam perpendicularly and downwardly irritates on the photoelectric sensor array that is horizontally installed on the ground, the photoelectric sensor in the array senses laser and outputs voltage signal with certain amplitude, the voltage signal after coding is inputted into a computer via an acquisition card for processing, displaying, storing and alarming when beyond limit. The invention can intuitively and effectively record the macroscopic swinging motion of the drill derrick, so as to provide practical information for stress analysis and fault evaluation of the drill derrick and effectively prevent occurrence of accidents on the drill derrick. The device can also be used for monitoring swinging motion of bridges and high-rise buildings under running process and natural draught, so as to effectively prevent the occurrence of construction accidents.

The invention discloses a braking performance early-warning system for a hydraulic crane hoisting mechanism. The early-warning system comprises a signal detection device and a warning circuit, and the signal detection device is electrically connected with the warning circuit; the signal detection device comprises multiple detection columns which are installed on one outer end face of a first hoisting machine winding drum, and a proximity switch matched with the corresponding detection column is installed on a winding drum bracket at the outer side of the detection column; and the warning circuit comprises a warning buzzer which is connected with the proximity switches in series, a lifting pressure relay and a falling pressure relay are connected between the proximity switches and a power supply in series, the lifting pressure relay is connected with a lifting control oil circuit of a hoisting machine control oil circuit, and the falling pressure relay is connected with a falling control oil circuit of the hoisting machine control oil circuit. When a braking system is subjected to abnormities, the winding drum rotates, after the detection columns reach the sensing distance to the proximity switches, the proximity switches enable the warning buzzer to be connected with the power supply, and warning is conducted; and an operator can perform maintenance on a crane in time according to warning information, and construction accidents are avoided.

The invention discloses hoisting equipment used for a steel box girder in a complex environment. The hoisting equipment comprises a lower girder body, an upper girder body, a rotating shaft and threetelescopic rods, wherein the lower girder body is provided with four hoisting points; the upper girder body is located above the lower girder body and provided with four connecting columns, the lowerend of any connecting column penetrates through the lower girder body and is provided with a distributive girder mechanism, and the bottom of each distributive girder mechanism is connected with the steel box girder to be hoisted; the rotating shaft is located between the upper girder body and the lower girder body and rotatably connects the middle of the upper girder body and the middle of the lower girder body together; and the three telescopic rods are located between the upper girder body and the lower girder body, and the two ends of any telescopic rod are connected with the upper girderbody and the lower girder body respectively. Transition parts of the upper girder body and the lower girder body are arranged between a steel wire rope connected with a crane and the steel box girderto be hoisted, the shaking amplitude of the steel box girder caused by other external forces (such as wind force) in the complex environment is greatly reduced, the probability of construction accidents caused by shaking of the steel box girder in the hoisting process is greatly reduced, and the safety of construction is improved.

The invention relates to a bracket and a construction method for the construction of the zero block of an over-wide and short pier box girder, belonging to the field of road and bridge construction. The main steps include: installing triangular brackets around the pier, and installing the triangular brackets on the embedded parts of the brackets in the pier; placing distribution beams above the triangular brackets, placing external formwork on the distribution beams, and installing inner Formwork; the lower end of the strut is installed on the embedded part of the cap, and the upper end is connected with the distribution beam; after the strut is installed, the concrete of the zero block can be poured.

The invention provides a fatigue reminding system and a fatigue reminding method, applied to a rotary drilling rig. The fatigue reminding system comprises a camera device, a processor and a reminding device, wherein the camera device and the reminding device both are in electrical connection with the processor; the camera device is used for acquiring images of a driver in the rotary drilling rig in real time; the processor is used for acquiring a first moment when a first command is received and a second moment when a second command is received, and the first command and the second command are successive; the processor is also used for obtaining actual time interval between the first moment and the second moment according to the first moment and the second moment, and acquiring a target image of the driver currently acquired by the camera device when the actual time interval is greater than preset time interval; and the processor is also used for judging whether the driver is in a fatigue state according to the target image, and controlling the reminding device to remind the driver when the driver is judged as being in the fatigue state, thereby preventing construction accidents caused by fatigued operations of the driver.

The invention discloses a construction method for an overlength jet grouting stiffness core combined pile. The construction method includes following steps: (1) determining the vertical and horizontal distribution conditions of high-pressure-bearing water sections and non-high-pressure-bearing water sections according to the geological condition, and determining the quantity and the diameter of jet grouting pile expansion sections in pile bodies of overlength jet grouting piles; (2) performing construction of a plurality of groups of overlength jet grouting piles by employing high-pressure jet grouting drills, and setting the spacing between the plurality of overlength jet grouting piles according to the diameter of the jet grouting pile expansion sections; (3) manufacturing components of pile connectors, assembling and connecting wing plates of I-steels of various unit lengths by employing wing plate connection bolts and wing plate connection boards in the transverse direction, and forming section steel piles in unit lengths; (4) inserting the section steel piles, assembling the section steel piles of various unit lengths via web connection bolts and web connection boards according to the design length of the section steel piles, and accomplishing the construction work of the overlength jet grouting stiffness core combined pile via assembling and inserting; and (5) accomplishing the construction of the jet grouting pile expansion sections and the overlength jet grouting piles.

The invention discloses a building body structure for realizing composite signal sensing layout and a construction method thereof, and belongs to the technical field of building body structures. The building body structure for realizing composite signal sensing layout comprises a building body; a base layer is arranged at the lower end of the building body; and an observation assembly is pre-buried below the base layer. According to the building body structure for realizing composite signal sensing layout and the construction method thereof, the settlement degrees in different directions can be observed conveniently, the observation convenience is improved, the signal integrity and accuracy are guaranteed, the stability during construction is guaranteed, the construction safety is also improved, the construction quality is guaranteed, the integration of signal sensing and transmission is achieved, and sensing of various types of composite signals can be supported; and the installation is carried out during construction, so that the tedious construction is avoided, the problems caused by temporary punching installation are avoided, the installation convenience is improved, the construction accidents are avoided, and the construction safety is improved.

The invention relates to the technical field of foundation construction, in particular to a vibroflotation all-parameter monitoring method and system. The system comprises a vibroflotation all-parameter monitoring system which comprises a plurality of data receivers, a plurality of data collectors and a data processor; the data receivers receive data from a vibroflot device, a feeding device and an environment measuring device; the data collectors collect the data from the data receivers, and the real-time data is stored in the data collectors in a covering manner; and the data processors extract the data in the plurality of data collectors, draws a report form, and transmits the data to the display for displaying. The method aims at carrying out comprehensive data monitoring on numerous vibroflotation piles on a construction site and carrying out fixed-point management through a GPS, so that the problem of data omission caused by manual statistics and recording on the construction site is avoided.

The invention relates to a scaffold. The scaffold comprises multiple horizontal rods and multiple vertical rods, the horizontal rods and the vertical rods are detachably connected to form a scaffold body, and the scaffold body is detachably provided with a pedal; multiple circular holes are arrayed on the pedal in an array mode, multiple roller racks are detachably installed at the bottom of the scaffold body, and universal wheels are rotatably installed at the bottom of the roller racks. The scaffold is simple in structure, multiple horizontal rods, vertical rods and connectors detachably form the scaffold, after the scaffold is detached, the occupation space is small, the scaffold is convenient to transport, and the transportation cost is lowered; the universal wheels are detachably installed at the lower end of the scaffold, and the situation is avoided that in the movement process, the bottom face of the scaffold is damaged, and the noise is caused; the labor during short-distancetransportation is lowered; the pedal is provided with the through holes, and the overall weight of the scaffold is lowered; the bottom face of the pedal is provided with grooves so that the pedal canbe stably fixed to the scaffold body, and construction accidents are prevented.

The invention provides an ultrahigh fill corrugated steel arch structure and a construction method, and belongs to the technical field of bridge and culvert construction. The method comprises the following steps: B, mounting an outer-layer arch structure, and mounting a displacement sensor and a strain sensor to monitor and feedback displacement data and strain data of a corresponding part of theouter-layer arch structure; c, mounting an inner layer arch structure; f, performing first-stage filling until the displacement data and the strain data reach a preset limit value standard; i, pouringconcrete between the outer-layer arch structure and the inner-layer arch structure, and waiting until the concrete reaches preset strength; and J, carrying out second-stage filling until a preset standard is reached. The structure comprises the outer-layer arch structure, the inner-layer arch structure, a filling body structure, the displacement sensor, the strain sensor and a data transmission module. High stability and safety can be achieved in the whole process of installation construction and actual use in ultrahigh fill engineering.

The invention provides an urban rail protection MJS construction method pile intelligent back analysis rapid inversion method and system. The method comprises the steps: firstly, establishing back analysis system software with a swarm intelligence optimization algorithm alpha-PSO as the core through finite difference analysis software; then giving a basic parameter value range of back analysis system software according to geological exploration initial parameters; continuously optimizing and updating the monitoring data through a back analysis system, continuously calculating to obtain rock-soil body parameters according to the optimized and updated monitoring data, and continuously iterating the rock-soil body parameters to obtain rock-soil body back analysis parameters; and finally, calculating the deformation displacement of the foundation pit and the urban rail according to the rock-soil body back analysis parameters. The inverse analysis parameters obtained through swarm intelligence optimization algorithm alpha-PSO optimization can reflect complex geological conditions in the rock-soil body better, can participate in finite difference calculation to simulate next excavation of the foundation pit, obtain rock-soil body parameters, predict possible risks and avoid construction accidents.

The invention relates to the field of underground structure engineering, and discloses a post-inserted steel column guide device. The guide device comprises a plurality of guide plates which are symmetrically arranged around the midperpendicular of a steel column; each guide plate comprises a head part and a tail part connected with the head part, the head part is arranged at the bottom of the steel column, the first side edge of the tail part of the guide plate is arranged on the periphery of the steel column, and the second side edge opposite to the first side edge is parallel to the first side edge; and the steel column is guided by the multiple guide plates to be inserted into a foundation pile reinforcement cage. According to the post-inserted steel column guide device provided by theinvention, by uniformly and symmetrically arranging the multiple guide plates on the periphery of the steel column, it can be ensured that the steel column is smoothly and precisely inserted into a foundation pile in an alignment mode, excessive alignment deviation is avoided, and the situation that construction accidents occur due to the fact that studs are stuck in the foundation pile reinforcement cage is avoided.