8results about How to "Solve construction difficulties" patented technology

The invention discloses a method for constructing an enclosure structure by adopting a hole pile method under a limited ground condition, which comprises the following steps of: constructing ground enclosure piles on the ground, arranging the ground enclosure piles along a first open excavation section and a second open excavation section, then constructing the first open excavation section and the second open excavation section, then constructing a pipe curtain support beam below a running track, and then constructing a pipe curtain, excavation is conducted from the first open excavation section and the second open excavation section to the direction, so that an underground excavation section is excavated, in-hole fender posts are constructed along the edge of the underground excavation section, in-hole piles are constructed at multiple positions of the ground of the underground excavation section, and steel pipe stand column piles are installed on the in-hole piles; and finally, a pile top beam is constructed on the steel pipe stand column pile, and a cover plate is installed on the pile top beam. According to the construction method, the ground fender posts are constructed firstly, then the in-hole fender posts are constructed when the underground excavation section is constructed, and the in-hole fender posts are connected with the ground fender posts to form a closed fender post structure, so that the safety of subsequent construction is guaranteed, the stability of a soil layer around the subway station is guaranteed, and meanwhile, the construction efficiency is guaranteed.

The invention relates to the technical field of road administration channel installation, in particular to installation equipment for an assembly type slab culvert, which comprises a rack, a rotating sleeve and an abutting assembly, the rotating sleeve comprises one end rotatably connected to the rack, and the abutting assembly comprises connecting rods capable of being hinged to each other and a reset piece arranged between the connecting rods; the abutting assemblies are arranged on the two sides of the rack correspondingly, the reset pieces enable the connecting rods to keep a mutually perpendicular state, a groove is formed in one end of the rotating sleeve, a plurality of mounting grooves used for connection are formed in the slab culvert, bolt and nut structures are arranged in the mounting grooves, and the groove is formed in the upper end of a nut of the slab culvert. The abutting assembly can be bent so that the installation equipment can enter the installation groove, and the reset piece enables the connecting rod to abut against the interior of the installation groove. Compared with a traditional manual tool, the device has the advantages that the labor intensity of workers is relieved, meanwhile, the construction difficulty caused by space limitation is avoided, the mounting efficiency is remarkably improved, and the overall construction period of the slab culvert is shortened.

The utility model belongs to the technical field of prefabricated concrete grids, and particularly relates to a prefabricated concrete grid structure of a roof framework access hole, which comprises a plurality of vertical prefabricated grids, two butt-joint prefabricated grids are arranged between two vertical prefabricated grids, and two butt-joint prefabricated grids are arranged between two butt-joint prefabricated grids. The length of the two butt-joint prefabricated grids is smaller than that of the vertical prefabricated grid, a horizontal grid is arranged at the bottom ends of the two butt-joint prefabricated grids, and an access hole is formed in the lower side of the horizontal grid; the horizontal grid comprises two first steel channels, the two ends of the first steel channels are welded to the vertical prefabricated grids on the two sides, a connecting piece is arranged between the first steel channel on the upper side and the butt joint prefabricated grid, and concrete is poured on the outer sides of the first steel channels. According to the utility model, the problems that the roof grating adopts a prefabrication process and the grating at the access hole part is difficult to construct can be solved, and the uniformity of the production of the prefabricated grating is ensured.

The utility model discloses a spliced track and a sliding door and window, and belongs to the technical field of doors and windows. The spliced track comprises a first track and a second track, and a first hook and a first connecting part are arranged on the side face of the first track in the vertical direction; the second rail is arranged on one side, in the horizontal direction, of the first rail, a second hook and a second connecting part are arranged on the side face of the second rail in the vertical direction, the second hook is in lap joint with the first hook, and the first connecting part is detachably connected with the second connecting part; the first rail and the second rail are used for being in sliding connection with corresponding door and window sashes respectively. According to the splicing type rail and the sliding door and window, the problem that logistics, construction and manufacturing are difficult is solved, cost is reduced, and the yield is increased.

This invention relates to a throttling manifold and its control method for controlling oil well blowout. The manifold includes an internal control line, a five-way connector, a first four-way connector, a second four-way connector, a third four-way connector, a fourth four-way connector, a fifth four-way connector, and a sixth four-way connector. The throttling manifold is a novel system composed of a conventional throttling manifold, two manual throttling valves, six flat valves, two four-way connectors, and a flanged short section. This throttling manifold has a dual-channel structure, with each channel controlled by a manual throttling valve and a manual flat valve, and a direct discharge in the middle. This invention significantly improves the safety factor of on-site operations, meets energy-saving, emission-reduction, and environmental protection requirements, effectively solves construction problems during gas well depressurization, well control, and water absorption index measurement, and has strong practicality and operability, extending the service life of the manifold and improving its throttling effect.

The application relates to a construction method of a combined pipe body, which comprises the following steps: S1, obtaining a plurality of target pipe bodies, installing the target pipe bodies to preset positions, and obtaining a plurality of preset pipe body structures; a first connecting part is arranged on the inner wall of each target pipe body; S2, after the preset pipe body structures are obtained, a fixing assembly is installed between the outermost target pipe bodies in the adjacent two pipe body structures, and a combined pipe body is obtained; wherein the fixing assembly comprises an upper fixing part, a lower fixing part and a supporting column arranged between the upper fixing part and the lower fixing part; the supporting column is detachably connected to the upper connecting plate and the lower connecting plate through a first connecting part; and S3, a target component is connected to the first connecting part through a second connecting part. In the application, the detachable fixing assembly and the bolt connection mode can reduce the welding operation amount, the target component is installed after construction, the construction space in the pipe body during construction is improved, the construction efficiency is improved, and the construction difficulty in a narrow space is avoided.

The invention discloses a modular assembly type concrete channel system suitable for abrupt slope mountainous regions, and relates to the technical field of hydraulic engineering and slope treatment, in particular to a modular assembly type concrete channel system suitable for abrupt slope mountainous regions, which comprises an anti-slide pile foundation and a channel main body module arranged on the anti-slide pile foundation. The channel body module is of a U-shaped structure, a male opening is formed in the front end of the channel body module, a female opening is formed in the rear end of the channel body module, and a rubber waterstop is embedded in the inner side of the female opening to achieve sealing connection. The multiple channel main body modules are in butt joint through male and female openings, and prestressed steel cables penetrate through the channel main body modules to enhance integrity. The upper end of the module is lapped with a cover plate, and the inner side wall is provided with drainage holes. The system adopts a modular assembly design, is simple and convenient to construct, can effectively adapt to abrupt slope terrains, and improves the anti-sliding stability and the anti-seepage performance.