39results about How to "Construction work safety" patented technology

The present invention is high slope rock and soil anchoring construction method and apparatus. The construction method includes presetting six anchoring points within the anchoring construction range, connecting two upper anchoring points via a steel cable; suspending drilling table via a pulley block under one suspended pulley rolling on the steel cable; connecting four transversely shifting winders fixed on the ground to other four anchoring points separately via four steel cables via the pulley; and operating the winders for the drilling table move vertically and transversely while closing to slope. The anchoring drilling machine on the drilling table can regulate its drilling angle in both vertical direction and horizontal direction. The construction method and apparatus of the present invention is practical, safe and reliable.

The invention belongs to the field of building construction, and particularly relates to an underground construction blind shaft drainage system and a construction method. The underground constructionblind shaft drainage system comprises a water collection pit arranged in a deep foundation pit in an excavation, a pumping system arranged in the water collection pit and a drainage ditch arranged atthe deep foundation pit top in an excavation; the pumping system is a submerged pump with a protective shell, and water in the water collection pit is discharged through the submerged pump; and filtering fillers are arranged at the periphery of the protective shell of the submerged pump of the water collection pit in a filling mode, construction is carried out after a foundation pad layer, a waterproof later and a concrete layer are sequentially poured on a cob wall, and corresponding backfill of all functional layers is carried out on the water collection pit before a raft is poured. The underground construction blind shaft drainage system has good stability and high anti-interference performance; a drainage pipe does not penetrate through the waterproof layer and a raft foundation, construction is not interfered, water pumping cannot be stopped in the overall process of pouring, the situation that drainage is stopped in the concrete pouring process due to the fact that the drainagepipe penetrates through the foundation is avoided, and the problem of leakage existing in waterproofing of the raft foundation is solved; and the whole construction operation is safe and reliable, andthe quality is guaranteed.

The invention discloses a plunger-type double-passage different-direction synchronous joint control check valve for a double-layer continuous oil pipe, which is arranged between the double-layer oil pipe pipelines. The plunger-type double-passage different-direction synchronous joint control check valve comprises a left valve body, a right valve body, an inner passage piston, an inner passage piston seat, an outer passage piston, an outer passage piston seat, a long pin, a crossing plunger, a slide block, an inner passage piston return spring, an outer passage piston return spring and a slide block return spring. According to the plunger-type double-passage different-direction synchronous joint control check valve, the parts such as the piston, the return spring, the movable slide block and the like are simultaneously and additionally installed in the inner layer and the outer layer of continuous oil pipe passages, a different-direction synchronous joint control design scheme is adopted, a double-passage different-direction joint control check valve device is formed, so that when accidents happen, the passages of the inner and the outer continuous oil pipes are effectively sealed, the return of the well liquid is prevented, and the blowout is prevented.

The invention relates to a seepage draining system layered arrangement method for decreasing the seepage line buried depth of a tailings reservoir. The seepage draining system layered arrangement method comprises the following steps: (1) if the initial-stage dam elevation of the tailings reservoir is N meters, according to the tailings accumulation body beach face seepage draining condition, 1 ton layers of seepage draining blind ditches are formed in a layered mode and designed at different elevations of N+H meters, N+2H meters, N+3H meters, N+4H meters... and N+nH meters of a tailings accumulation dam, and the seepage draining blind ditches are parallel to the dam axes of sub dams and are away from the dam axes of all the stages of sub dams by M meters; (2) each layer of seepage draining blind ditch parallel to the corresponding dam axis is located in front of the corresponding stage of sub dam by M meters, and composed of peastone, a soft water filter pipe and a 400 g/m<2> wrappinggeotechnical cloth; (3) one end of each layer of water guiding pipe perpendicular to the corresponding dam axis is connected with the soft water filter pipe in the corresponding seepage draining blind ditch parallel to the corresponding dam axis through a tee joint; (4) tailings drawing and seepage draining system construction are independently and alternately conducted in a zoned mode; and (5) operation of the tailings reservoir is detected and repaired. According to the seepage draining system layered arrangement method, the seepage line buried depth can be decreased, and it is guaranteed that the dry beach length of the tailings reservoir meets the design specification requirements.

The invention belongs to the technical field of building construction foundation drilling tool application, and particularly discloses a novel long spiral drilling hole cast-in-situ pile top and cap integrated construction device which comprises an automatic walking vehicle, a power distribution operation room, three door head pulleys, a main rotating and winnowing machine, a support, a rock supporting rod, a horizontal head sliding member, a power transmission box, a drilling rod, a drilling rod blade, a drilling sleeve and an alloy drill bit. The power distribution operation room, the door head pulleys, the main rotating and winnowing machine and the support are arranged on the automatic walking vehicle, two ends of the rack supporting rod are connected with the support respectively, the horizontal head sliding member is arranged on the support, the power transmission box is connected with the horizontal head sliding member, the drilling rod is connected with the power transmission box, the drilling rod blade is arranged on the drilling rod, the drilling sleeve is arranged at the end of the drilling rod, a spiral connecting groove is formed inside the drilling sleeve, one end of the drilling sleeve is movably connected with the support, and the alloy drill bit is arranged at the end of the drilling rod. The problems that existing long spiral drilling machines are low in efficiency and instable in integral structure and prestress cannot reach production construction requirements are solved, the novel long spiral drilling hole cast-in-situ pipe top and cap integrated construction device is reasonable in design, meets construction standards and requirements, can integrally form pile body and pile cap concrete quickly in a high-quality manner, raw materials are saved, and production cost is lowered.

The invention provides a top plate drilling device and an application method thereof. The top plate drilling device comprises a vertical rod, a supporting rod, a handle rod and a connecting rod. One end of the vertical rod is hinged to one end of the connecting rod. One end of the supporting rod is hinged to one end of the handle rod. An electric drill is fixed to the other end of the supporting rod. The other end of the connecting rod is hinged to the position, located above the hinged end of the supporting rod and the handle rod, of the supporting rod. The position, located below the hinged end of the vertical rod and the connecting rod, of the vertical rod is hinged to the handle rod. A parallelogram is enclosed by the supporting rod, the connecting rod, the handle rod and the vertical rod in the hinged positions. The top plate drilling device has the beneficial effects that the structure is simple; installation is convenient; drilling operation can be completed on a floor slab by workers; and the labor intensity of the workers is relieved.

The invention relates to a ground construction robot. A steering wheel control motor, a driving wheel power source, and a sliding table transverse base are respectively mounted on a chassis, the output end of the steering wheel control motor is connected with a steering wheel, and a driving wheel is driven by the driving wheel power source; a sliding plate transverse motor is mounted on the sliding table transverse base, the output end drivesa sliding table longitudinally base to move in a reciprocate mode opposite to the sliding table transverse basethrough a transverse transmission mechanism, aspindle power motor and a Z-axis longitudinal sliding plate control motor are mounted on the sliding table longitudinalbase respectively, the Z-axis longitudinal sliding plate control motor drives a boring and milling head to rise and fall in a reciprocate mode relative to the Z-axis longitudinal sliding plate through a longitudinal transmission mechanism,the spindle power motor is connected to the input end of the boring and milling head through a transmission mechanism, the output end of the boring and milling head is connected to one end of a spindle,the other end of the spindle is connected to an end effector. According to theground construction robot,integration of measurement and construction is realized, precision of ground construction and the efficiency of ground constructionare greatly improved, and the construction period is shortened.

The invention discloses a check valve for downhole double-layer coiled tubings. The check valve is arranged between the downhole double-layer coiled tubings; the right end of the check valve communicates with the shaft bottom; the check valve comprises a left valve body; a left first threaded hole connected with the coiled tubing on the outer layer and a left second threaded hole connected with the coiled tubing on the inner layer are formed in the left end of the left valve body; a left second through hole communicating with the left first threaded hole and a left first through hole communicating with the left second threaded hole are formed in the left valve body; a right valve body is fixedly mounted at the right end of the left valve body; a right first threaded hole connected with thecoiled tubing on the outer layer and a right second threaded hole communicating with the coiled tubing on the inner layer are formed in the right end of the right valve body; a right second through hole communicating with the right first threaded hole and a right first through hole communicating with the right second threaded hole are formed in the right valve body; and a shuttle valve component,an inner-layer check valve component and an outer-layer check valve component are arranged in the left valve body. The check valve can effectively seal a passage of the coiled tubings on the inner and outer layers in the case of an unexpected situation to prevent well liquid from reversing out so as to prevent a gas blowout accident.

A cable erecting device and an erecting method thereof belong to the technical field of buildings, and the device comprises: a mounting assembly used for being mounted on a wall body, wherein the mounting assembly is arranged on the wall body; an adjusting assembly which is used for adjusting the position of the mounting assembly on the wall body, wherein the adjusting assembly is arranged on themounting assembly and abuts against the wall body; a supporting assembly which is used for supporting the cable, wherein the supporting assembly is arranged on the mounting assembly; and a rotating assembly which is used for winding the cable on the supporting assembly, wherein the rotating assembly is arranged on the supporting assembly in a rotatable mode. The cable erecting device and the erecting method thereof provided by the invention have the following beneficial effects: (1) a plurality of brackets can be mounted, and a plurality of cables can be erected at the same time; and (2) the supporting rod can rotate in the sleeve, so that the frictional resistance between the supporting rod and the cable is greatly reduced, and the abrasion of the surface of the cable is reduced.