98results about How to "Solve the problem of slurry leakage" patented technology

The invention discloses a lining construction method for a suspension rail type trolley. The method comprises the following steps that (1) a primary support is dismounted, 1/3 to 1/2 of the primary support of a pilot tunnel is dismounted to adapt to the height of the trolley, then the surface of the dismounted portion is leveled, and the dismounted portion of the primary support of the pilot tunnel is a side wall of the primary support of the pilot tunnel; (2) water preventing construction is carried out, and waterproof plates are arranged on the contact faces of a top longitudinal beam, a buckle arch primary support and a designed two-lining buckle arch; (3) steel bars are machined and mounted, and the pre-machined and formed steel bars are transported to an operating face, and are mounted according to design requirements; (4) the trolley is mounted in place, the trolley is lifted, a formwork is lifted to a design position, and concrete pouring is carried out. According to the lining construction method for the suspension rail type trolley, the two-lining buckle arch concrete construction formwork dismounting and shutting time is greatly shortened, the construction period is shortened, and the continuous construction performance is good. Labor cost for splicing and dismounting the formwork and a scaffold is greatly saved. Pouring precision and quality are improved.

The invention discloses an anti-scouring concrete repairing device. The anti-scouring concrete repairing device comprises a mixing and stirring device and a slurry supplement pipe. The mixing and stirring device is used for stirring concrete slurry, and the concrete slurry is injected into concrete cracks through the slurry supplement pipe. The anti-scouring concrete repairing device is characterized in that the mixing and stirring device can cyclically work to prepare materials first and then to discharge the materials, and a plurality of pipelines arranged between the mixing and stirring device and the slurry supplement pipe. The anti-scouring concrete repairing device has the advantages that the cracks are fully filled, the probability of slurry leakage is lowered, the surface flatnessis high after reinforcement, and a grouting pipe can slide in the cracks to achieve slurry supplement; the mounting stability of a support is high, and a wall is not likely to be damaged, or the adhesion strength of a plate body is high; intermittent material supplement and quantitative stirring are conducted, so that raw material waste is reduced, the cracks are fully filled, the probability of slurry leakage is lowered, the surface flatness is high after reinforcement, the grouting pipe can slide in the cracks to achieve slurry supplementation; and the mounting stability of the support is high, and the wall is not likely to be damaged, or the adhesion strength of the plate body is high.

The invention provides a dual sealing device for feeding of a ball mill, which is applied in the technical field of large-scale ball mills. The sealing device comprises an inlet pipe, an auxiliary mounting beam, connecting bolts, a compressing snap ring, compressing angle sealing rubber, an adjusting bolt, a mounting flange, an inner wear resistant rubber slab, an outer wear resistant rubber slab, a compressing plate, a compressing plate bolt, a mounting flange bolt and a feeding bushing. The invention is characterized in that: the dual sealing device for feeding of a ball mill is formed by assembling the auxiliary mounting beam, the mounting flange, the inner wear resistant rubber slab, the compressing plate, the outer wear resistant rubber slab and the compressing angle sealing rubber; during installation, the mounting flange is fixed on the inlet pipe through the auxiliary mounting beam, the compressing angle sealing rubber is fixed on a feeding pipe through the compressing snap ring, one side of the compressing angle sealing rubber parallelly contacts with the inner wear resistant rubber slab, and the other side of the compressing angle sealing rubber contacts with a slope of the outer wear resistant rubber slab. According to the invention, the movable compressing angle sealing rubber, the twofold contacted inner and outer wear resistant rubber slabs and the detachable auxiliary mounting beam are utilized in the dual sealing device; therefore, the advantages of convenient installation, simple adjusting and improvement of work environment for sealing members are obtained.

The invention relates to a prefabricated thin concrete slab formwork structure. The prefabricated thin concrete slab formwork structure comprises prefabricated thin concrete slabs, a cushion layer, grooves, integrally-embedded connecting screws, angle iron, leveling base grout layers and cast-in-situ bored piles. The prefabricated thin concrete slabs adopt rabbets for connection, are provided withscrew holes and connected through the evenly-distributed angle iron. The connecting angle iron on the inner side is of an embedded type. The angle iron is provided with lead screw through holes connected with the integrally-embedded connecting screws. Grid cloth anti-crack tapes are arranged in seams between the prefabricated thin concrete slabs. Connecting studs are evenly welded to the angle iron on the inner sides of the prefabricated thin concrete slabs. Lugs are evenly arranged at the tops of the prefabricated thin concrete slabs. The prefabricated thin concrete slab formwork structure has the beneficial effects that an inner formwork of a sliding formwork system is evenly divided into cavities at equal intervals, adjustable sand partition plates are arranged in the cavities to forma limiting balance weight frame, and bags between the partition plates are filled with sand to achieve regional ballasting; and a plate vibrator and a vibrating leveling beam are arranged on a lower panel of a sliding formwork, so that the slope concrete pouring quality is further improved.

The invention provides a CRTS III type slab ballastless track self-compacting concrete casting tooling and method. The casting tooling comprises a base slab, a track slab, a transferring hopper, a casting funnel, a slurry blocking template, a three-dimensional fine regulator, a track slab pressing device, a track slab lateral sliding preventing device and a slurry blocking template pressing device. The middle casting mode is changed into the lateral surface casting, and the problems of casting efficiency and air exhaust in the CRTS III type slab ballastless track construction are solved. The track slab lateral sliding preventing device, the track slab pressing device and the slurry blocking template pressing device effectively solve the problems of upward floating, lateral sliding and slurry leakage of the track slab in the casting process, so the fine regulation and the casting construction of the CRTS III type slab ballastless track are more convenient and fast, and the casting quality is better. The construction process has the advantages that in the use process, the weight is light, the rigidity is high, the efficiency is high, the operation is simple and convenient, the work intensity is low, and the construction process can adapt to the construction of road segments such as bridges, tunnels and roadbeds.

The invention discloses a dry-hang external wall insulation board and a novel application thereof as a dismounting-free building template. The dry-hang external wall insulation board comprises a panel, upper and lower wall boards, two side wall boards, a bottom plate and an insulation core material, wherein the panel is arranged at the top ends of the wall boards; the outer side surface of the upper wall board extends out of the upper side surface of the panel; a bulk water slope is arranged between the top edge of the outer side surface of the upper wall board and the bottom edge of the upper side surface of the panel; the lower side surface of the panel extends out of the outer side surface of the lower wall board; the part of the panel, extending out of the lower wall board forms a pressure plate mounted by being matched with the bulk water slope; a pressure plate slope is arranged between the bottom edge of the lower side surface of the panel and the top edge of the outer side surface of the lower wall board; a pouring connection piece is embedded between the panel and the bottom plate; the pouring connection piece comprises a fixing rod, a nut at the outer end of the fixing rod and a screw rod matched with the nut; the nut is arranged at the end of the bottom plate; the screw rod extends out of the bottom plate; a U-shaped opening positioning sleeve is arranged on the screw rod; fastening nuts are arranged at the two ends of the U-shaped opening positioning sleeve. The dry-hang external wall insulation board is suitable for dismounting-free self-insulation self-decoration templates of cast-in-situ shear walls and beam columns.

The invention discloses a whole-span prefabricated H-steel-concrete composite beam bridge and a construction method. The whole-span prefabricated H-steel-concrete composite beam bridge comprises an H-steel combination and a concrete bridge plate which is poured on the H-steel combination; the H-steel combination comprises H-steels placed in parallel in the bridge width direction; and the whole-span length is the length direction of the H-steels. The whole-span prefabricated H-steel-concrete composite beam bridge has the advantages that the construction of a bridge deck slab is simple and the hoisting weight of the bridge deck slab is light; during making, factory machining and manufacturing procedure does not exist and the later mounting and erecting difficulty is reduced; and meanwhile, as the H-steels can avoid adverse effects such as welding residual stress, more stable mechanical property, better bearing capacity and better durability are obtained; and the making cost can be greatly reduced. Compared with the steel plate girder in the prior art, the whole-span prefabricated H-steel-concrete composite beam bridge has the advantages that the welding or bolting process can be eliminated; construction processes uneasy to control, such as prestressed structure steel strand tensioning and grouting, hollow slab girder hinge joint connection and so on do not exist; the quality of aprofiled-steel composite beam can be effectively guaranteed; and requirements on equipment and technical skills of workers can be reduced.

The invention discloses an underground grouting construction system and method of a straight pile outer-sleeve type jacket with a first pile method. The construction system comprises a steel pipe pile and a jacket sleeving the outer side of the steel pipe pile, and a annular grouting space is formed between the steel pipe pile and the jacket; a main grouting pipe, a spare grouting pipe and a bottom sealing pipe are arranged on the jacket, the main grouting pipe, the spare grouting pipe and the bottom sealing pipe correspondingly penetrate through the jacket and communicate with the annular grouting space. The construction method comprises the steps that the steel pipe pile is piled, and the jacket sleeves the outer side of the steel pipe pile; a rubber bag in a packer is filled and bulged by pumping grouting materials through the bottom sealing grouting pipe, and the situation that grouting materials are hardened is waited; the annular grouting space is grouted through the grouting pipe; when water in the annular grouting space completely flows out from the outlet above sea level, the valve on the outlet is closed, and grouting is conducted continuously until the end of grouting. According to the underground grouting construction system and method of the straight pile outer-sleeve type jacket with the first pile method, the construction technology is simple, the grouting efficiency and quality are improved, and the success rate and the quality of underwater grouting of the jacket are guaranteed.

The invention relates to a building construction structure, in particular to a basement post-cast strip structure and a construction method thereof. The basement post-cast strip structure comprises upper and lower steel bar binding layers, a lower support column, a water-stop steel plate, an upper support column, an upper fast-ribbed formwork and a lower fast-ribbed formwork, two parallel concretebarrier strips are laid on a concrete cushion on the lower portion of a post-cast strip, a cavity between the two concrete barrier strips vertically corresponds to the post-cast strip, the concrete barrier strips extend along the length direction of the post-cast strip, and the upper ends of the concrete barrier strips are abutted to the lower steel bar binding layer to support the lower steel bar binding layer. The concrete barrier strips can serve as a supporting structure for lower steel bars, lower flowing slurry is stopped when concrete on two sides of the post-cast strip are poured, construction quality is ensured, the concrete barrier strips can subsequently serve as part of a surface protection layer of a water-resistant plate and can be permanently closed in the structure, and subsequent detachment is omitted.

The invention provides a prefabricated box girder end die capable of being rapidly positioned and dismounted. The prefabricated box girder end die is characterized in that two end heads of a top plateare welded to inner sides of upper ends of a left web and a right web respectively; a left flange plate and a right flange plate are welded to outer sides of upper ends of the left web and the rightweb respectively and are flush with the upper top plate respectively; a bottom plate is welded at lower end heads of the left web and the right web, and a whole end die is formed accordingly; a comb plate is welded to the upper end of a bottom die; after a left side lateral die, a right side lateral die and the bottom die are mounted on a prefabricated beam pedestal respectively, girder steel barsare bound and prestressed pipes are mounted; front end heads of drawing screws of a first positioning device, a second positioning device, a third positioning device and a fourth positioning device with the same structure are welded to upper parts of the left web and the right web of the end die and left and right sides of the bottom plate respectively; and the whole end die is placed between theleft side lateral die and the right side lateral die, the bottom is aligned to the comb plate on the bottom die, the end die is controlled to move forwards by tightly screwing positioning screw caps,and accurate positioning and fixation of the end die are realized.

The invention discloses a post-tensioning method prestressed grouting stock outlet structure. The post-tensioning method prestressed grouting stock outlet structure comprises a prestressed tendon, ananchor ring, an anchor bearing plate and a corrugated pipe, the anchor ring is installed on the outer portion of the prestressed tendon in a sleeving mode, the corrugated pipe is connected with a vertical steel pipe, and the corrugated pipe and the vertical steel pipe are connected in a sealing mode. The corrugated pipe and the vertical steel pipe are installed on the outer portion of the prestressed tendon in a sleeving mode, the anchor bearing plate is installed on the outer portion of the vertical steel pipe in a sleeving mode, and the vertical steel pipe is further connected with a horizontal steel pipe. A plastic hose is connected to the other end of the horizontal steel pipe, and the interiors of the corrugated pipe, the vertical steel pipe, the horizontal steel pipe and the plastichose mutually communicate. According to the post-tensioning method prestressed grouting stock outlet structure, the problem of poor exhaust and leakage during hole grouting is solved through the mutual communication of the vertical steel pipe, the horizontal steel pipe and the corrugated pipe, meanwhile, the vertical steel pipe is connected with the anchor bearing plate, and the stiffness of components is improved.

The invention discloses an assembled form-removal-free steel bar truss floor support plate. Each floor unit comprises a concrete bottom plate, a steel bar truss and a connecting piece, wherein the steel bar truss is connected with one surface of the concrete bottom plate through the connecting piece, a decorative layer is arranged on the other surface of the concrete bottom plate, and the end parts of the decorative layers of the adjacent floor units are staggered with the end parts of the concrete bottom plates. The concrete bottom plates are adopted as formworks for pouring concrete during construction, and do not need to be removed after construction is completed, so that the construction period is shortened, and the construction cost is reduced; and meanwhile, the mechanical property of the concrete bottom plates is good, the concrete bottom plates can be used as a part of a floor structure, and are stressed cooperatively with concrete of an upper cast-in-place structure layer, so that the thickness of a floor plate can be reduced, the use amount of upper cast-in-place concrete and truss steel bars is reduced, and the floor clearance is increased. The end parts of the decorative layers of the adjacent floor units are staggered with the end parts of the concrete bottom plates, so that the decorative layers of the adjacent plate ends can be overlapped and meshed with the concrete bottom plates when the floor support plates are laid in the construction stage, and slurry leakage is effectively avoided.

The invention relates to a separate bin grouting method. The separate bin grouting method includes the following steps that firstly, CGMJM-VI high-strength slurry is poured into a stirring cylinder; secondly, before pointing, the surface of a component and the surface of concrete should be cleaned up; thirdly, one end of a rubber hose with the diameter being 20 mm is gradually crammed into a seam in the bottom of the component along the outer side of the seam of the bottom of the prefabricated component; fourthly, the component and the concrete floor slab surface are wetted firstly before the cording seam is pointed through pointing trowels; fifthly, the rubber hose crammed into the seam of the bottom of the prefabricated component is pulled out slowly from the other end after the cording seam pointing is completed; and sixthly, after the rubber hose is pulled out, a taking-out opening is blocked tightly with a small ball of cording seam mortar. The separate bin grounding method is a construction process for rebar sleeve connection grouting component bottom seam blocking and has the beneficial effects that construction operation is easy, convenient and fast, and energy saving and environment protection are achieved.

The invention provides a concrete beam form supporting device and a construction process thereof. The concrete beam formwork supporting device comprises positioning parts, a supporting part, fixing parts and clamping parts, wherein the positioning parts, the fixing parts and the clamping parts are all symmetrically arranged at the two outer side surfaces of the cross section of a beam form, and the supporting part is arranged below the beam form and is parallel to the width direction of the beam form; the positioning parts are arranged close to the beam form, and are arranged above the supporting part; the fixing parts are arranged on the outer sides of the positioning parts, and the two ends of each fixing part are connected with one positioning part and the supporting part correspondingly; the clamping parts are arranged on the inner sides of the positioning parts, and the two ends of each clamping part are connected with one positioning part and the supporting part correspondingly;the clamping parts are obliquely arranged relative to the supporting part, and the positions of joints between the fixing parts and the positioning parts are higher than the positions of joints between the clamping parts and the positioning parts; and the positions of joints between the fixing parts and the supporting part are far away from the beam form, and the positions of joints between the clamping parts and the supporting part are close to the beam form. According to the concrete beam form supporting device, the supporting device has the advantages of being simple in structure, easy to control, high in universality, reusable and low in cost.

The invention discloses a formwork system for an inverted circular truncated cone-shaped cup opening of a column foundation of a steel structure factory building and a construction method, and belongs to the technical field of design and manufacturing of building engineering construction process equipment. The formwork system for the inverted circular truncated cone-shaped cup opening of the column foundation of the steel structure factory building and the construction method are convenient in construction and capable of effectively guaranteeing the pouring quality of the inverted circular truncated cone-shaped cup opening of the column foundation. The formwork system at least comprises an inner mold blank body comprising a flexible template and a supporting framework, and the flexible template coats the bottom side wall surface and the outer side wall surface of the supporting framework; and in a forming process of the inverted circular truncated cone-shaped cup opening of the column foundation, the inverted circular truncated cone-shaped cup opening is formed by space arranged by an inner mold blank body fixedly supported on a column foundation binding steel bar after a column foundation outer mold is erected. The construction method comprises the steps of designing and manufacturing the formwork system; binding the column foundation steel bar and erecting the column foundation outer mold; installing the inner mold blank body and pouring concrete; dismantling the formwork system after the concrete is initially set and crystallized; and cleaning the formwork system for repeated use next time.

Disclosed are a material-saving type modular plastic formwork and a construction method thereof. The formwork comprises a panel. The outer side of the panel is sleeved with a surface skin which is a hollow sealed box body formed by connecting at least two parts in an inserting mode. According to the material-saving type modular plastic formwork and the construction method thereof, according to the functional needs in the application process of the formwork, the formwork is designed to be the panel part and the surface skin part, wherein the surface skin is a wearing part and is responsible for concrete forming quality control and protecting the panel, and the panel is a long-term used part and provides strong support for the formwork. The surface skin and the panel are supplementary to each other so that the number of times of service of the formwork can be increased by a large margin, the service life of the formwork can be prolonged by a large margin, and the problem of resource waste existing in the plastic formwork industry is solved. The surface skin is easy to repair and replace, can be repaired after damaged, and can be recycled and machined to be a new surface skin again if damaged badly, so that the environmental protection and energy saving effects are achieved, the number of times of service of the formwork can be increased by a large margin, and the service life of the formwork can be prolonged by a large margin. The material-saving type modular plastic formwork and the construction method thereof can be widely applied to a concrete pouring formwork system.

The invention discloses a ball mill feeding apparatus. The ball mill feeding apparatus comprises a feeding pipe, a supporting base, a feeding hopper, a sealing flange and a feeding bushing, wherein the feeding pipe is fixed on the supporting base, the front end of the feeding pipe stretches into a feeding opening of a ball mill, a returning screw is arranged in the sealing flange, the spiral direction of the returning screw is consistent with the feeding direction, one end of the sealing flange is fixed on the feeding bushing, the other end of the sealing flange is provided with an inclined anti-abrasion rubber plate, the feeding pipe is provided with angular sealing rubber, the anti-abrasion rubber plate tightly contacts the angular sealing rubber, a rotating shaft is arranged in the feeding pipe in a penetrating manner, the rotating shaft is provided with screw blades, the top of the feeding pipe is provided with the feeding hopper, the end part of the rotating shaft is provided with a reducer, one end of the reducer is connected with the rotating shaft by virtue of a coupler, and the other end of the reducer is connected with an electromotor output shaft. By adopting the ball mill feeding apparatus, abrasion to a sealing part is alleviated, the sealing effect is good, the installation is convenient, the adjustment is simple, and the blockage of the feeding pipe can be effectively prevented.

The invention discloses a production die of a prefabricated supporting sleeve used in cooperation with a split bolt. The production die is formed by connecting two same die assemblies through a hinge side by side. The die comprises a die body, a plurality of shape setting die plates located in the die body and communicated with one another, and a fixing pipe groove. Each shape setting die plate is composed of a middle and two ends. Each end is of a frustum-shaped amplification head structure with the shape same as that of the corresponding middle. Each frustum-shaped amplification head structure is composed of a cone body and an end column body. Die releasing agents are painted to the interior of the die, concrete or pebble mortar with the weight of pebbles gradually decreased is poured, a PVC thin-walled pipe is pressed into the pipe groove, the die is closed, after the die removing strength is achieved, the die is opened, the prefabricated supporting sleeve is taken out, the PVC thin-walled pipe is cut off along the end of the prefabricated supporting sleeve, and the prefabricated supporting sleeve is manufactured. The die is simple in structure, convenient to operate and easy to master. A method is high in construction speed, the prefabricated supporting sleeve can be prefabricated on a construction site, mass production can also be performed in a prefabrication factory, and the concrete slurry leakage problem is effectively solved.

The invention relates to a fabricated building. A leaking stoppage method for an abutted seam of a fabricated building precast beam and a precast composite floor comprises the steps that the precast beam and the precast composite floor are mounted, bolt holes are formed in the positions close to the precast beam, and bolts are pre-buried; a leaking stoppage component is mounted and is a rigid L-shaped component, the two outer side faces of the leaking stoppage component are flexible waterproof material faces, through holes corresponding to the bolt holes are formed in the attaching positions of the flexible waterproof material faces and the precast composite floor, the flexible waterproof material faces on the outer side of the component are matched with the bottom of the composite floor with certain extrusion force through manual adjusting to complete vertical compaction, and then through transverse horizontal adjusting, the flexible waterproof material faces of a blocked seam of thecomponent are matched with the precast beam to achieve transverse compaction; and the component is screwed at the bolt holes in the precast composite floor through the bolts to be fixed, and then mounting is completed. On-site construction is facilitated, the hidden danger that rubber strips are impacted and then fall off is avoided, and the safety and stability of the blocked seam are greatly improved. The time of solidification shaping needed by sealing the rubber strips is avoided.