42results about How to "Not easy to leak slurry" patented technology

The invention discloses a construction method for pouring an airtight partition wall between a recovered roadway and a reserved roadway. The airtight partition wall is formed by an inner concrete single wall, an outer concrete single wall and a middle loess concrete wall; and the airtight structure is provided with three layers of walls: the inner side and the outer side are respectively provided with the airtight single wall which is formed in a way that a concrete pump pours concrete into a fiber flexible template, and the loess concrete wall filled by loess-based materials is arranged between the two single walls. The flexible templates are made in advance according to design requirements; a slot is drilled on a preset airtight surrounding rock connecting the roadways; anchor rods are constructed in the slot; after the flexible templates are hung onto the slot through a single hydraulic prop or the anchor rods, the concrete is successively poured into the inner side flexible template and the outer side flexible template by a concrete conveying pipe and a pouring opening through the concrete pump to form the inner single wall and the outer single wall; and after the inner single wall and the outer single wall are poured completely, the loess is poured between the inner single wall and the outer single wall to form the concrete airtight wall. The structure is safe and reliable, the construction cost is low, the construction speed is fast, the labor intensity is low, and the requirements of mine production with high production and high efficiency are met.

The invention discloses a device and a method for casting concrete continuous walls along gob-side entry retaining by a mining working face. A fiber flexible template is in cuboid shape or in cubicalshape, which is formed by a main body template and a top joint template and is connected with a flange, a casting opening, a reinforcing steel bar implanting opening, a spacing hole and a tiepiece. The method comprises the following steps: the fiber flexible template is manufactured in advance; the flexible template is hung over on a top plate of a coal seam through an individual hydraulic prop oran anchor rod by the flange; the exposure end of the implanted reinforcing steel bar is inserted in the flexible template through the reinforcing steel bar implanting opening; a leading screw penetrates into the spacing hole and two ends thereof are fixed by tray nuts; the casting opening is inserted with a concrete conveying pipe and is bonded; concrete is poured into the flexible template through the conveying pipe by a concrete pump; and finally the concrete continuous walls are formed. The invention has simple structure, high-speed construction, high work efficiency, good impermeability,uneasily slurry leaking property, densely filled concrete and good top joint effect, can carry out mechanized operation, adapts to the change of gradient of the roof and floor, and can be widely usedin the following industries, such as coal mine, metallurgical mine, water conservancy, underground construction and national defense and the like.

The invention relates to a grouting forming device in ceramic production, in particular to an individual type high-pressure grouting forming machine. The individual type high-pressure grouting forming machine comprises a support, a transverse beam frame, a base and an upper die frame, wherein the support is provided with a vertical guide column, and the transverse beam frame is driven by a lifting device to conduct vertical movement on the support by being guided by the guide column; the upper die frame is arranged on the transverse beam frame through a pothook; the base is arranged on the support through a turning bearing, and the base can turn on the support by being driven by a turning power device; the upper die frame and the base are provided with a clamping device, an upper mould is arranged in the upper die frame when a lower mould is placed in the base, the upper die frame moves downwards along the guide column along with the transverse beam frame and is combined to the base, and the upper die frame and the base are clamped by the clamping device to form a whole. The individual type high-pressure grouting forming device can be suitable for a plurality of types of products, blank releasing and taking are automated, and dangerous and high-strength manual work is replaced.

The invention provides a high concrete pier construction formwork device and belongs to the technical field of building equipment. The high concrete pier construction formwork device comprises a formwork system, a supporting system, a hydraulic lifting system and an operation platform. The formwork system comprises an inner formwork and an outer formwork. The supporting system comprises an enclosing truss, multiple outer lifting frames and multiple inner lifting frames, wherein the enclosing truss is arranged on the outer side of the outer formwork, and the distance between the enclosing truss and the outer formwork ranges from 300 mm to 500 mm; and the outer lifting frames are fixedly connected with the enclosing truss, the outer formwork is installed on the outer lifting frames, and the inner formwork is installed on the inner lifting frames. The hydraulic lifting system is used for driving the inner lifting frames and the outer lifting frames to move in a reciprocating manner, so that the enclosing truss, the outer formwork and the inner formwork move synchronously. The operation platform is located in a cavity defined by the inner formwork and on the enclosing truss. The formwork device is compact in whole structure, the structure is firm and reliable, and in the lifting process, the stress of the formworks is more even, and the formworks are lifted more conveniently and rapidly.

The invention relates to an upright post formwork. The upright post formwork comprises four steel formwork bodies and a plurality of fasteners, wherein the fasteners hoop outside the four steel formwork bodies and are arranged in the height direction of the steel formwork bodies, and the adjacent steel formwork bodies are connected by connecting columns with square cross sections; clamping tables extending vertically and outwardly are correspondingly arranged on the side walls of the two sides, correspondingly opposite to the adjacent steel formwork bodies, of the connecting columns, clamping grooves for the clamping tables to be clamped are formed in the positions, opposite to the clamping tables, of the side walls of the sides, opposite to the connecting columns, of the steel formwork bodies, and the shapes of the clamping grooves are matched with the shapes of the clamping tables; a plurality of perforations are formed in the positions, opposite to the clamping grooves, of the outer side surfaces of the steel formwork bodies in the height direction of the steel formwork bodies, and inserting holes which are formed opposite to the perforations in a one-to-one mode are formed in the clamping tables; and the steel formwork bodies are provided with plug pins with the number being matched with the number of the perforations, and the plug pins penetrate through the perforations and are inserted into the inserting holes. The upright post formwork has the advantages that the sealability of the joints of the adjacent steel formwork bodies is ensured, and thus the occurrence of the situation of mud leakage between the adjacent steel formwork bodies is avoided.

The invention discloses a centrifugal moulding mould used for manufacturing concrete hexagonal piles, which comprises an upper mould body and a lower mould body and is characterized in that: after the upper mould body and the lower mould body are closed, the cross section of an inner cavity is hexagonal; the upper mould body and the lower mould body are provided with a plurality of running wheels which make the mould rotated on a centrifugal machine; and the upper mould body and the lower mould body are fixedly connected through screws. The invention aims to overcome the defects of the prior art and provide a centrifugal moulding mould having a simple structure and used for manufacturing concrete hexagonal piles which have the performance such as bending resistance, shear resistance, high bearing capacity and withdrawal resistance much higher than that of tubular piles, square piles and hollow square piles.

The invention provides an octagonal concrete centrifugal pile and a forming mould thereof. A pile body adopts a hollow structure, and the outer profile of the cross section of the pile body is in an octagonal shape. The edges of the octagonal shape have different length, the short edges are respectively 40 mm, 45 mm, 50 mm and 55 mm in length according to different pile shapes, and all the corners of the edges are in a stress relief arc shape; and the arc radii are the same and are respectively 18 mm, 22 mm, 24 mm and 26 mm according to the different pile shapes. The octagonal concrete centrifugal pile has the benefits as follows: the material is saved, the self weight is light, the pile is not easy to damage, the pile body is good in ductility, the pile forming quality is improved by 20%, the bending and shearing resistance is improved by 30%, the production process is easier to control and the mould is easier to make. Poor durability of pile body concrete due to pile material damage in the transportation and construction processes can be avoided. The bearing capacity provided by a single pile is 30% higher than that provided by the general process, the economic property is good, and the cost is saved by about 25%. The pile body of the forming mould is easy to de-mould, and the effects of energy saving and emission reduction can be achieved.

The invention relates to the field of concrete structure building construction, in particular to an end supporting joint structure of a detachable steel bar truss plate. The end supporting joint structure comprises the steel bar truss plate, a frame structure and a first supporting piece. The steel bar truss plate comprises a floor bearing plate and a steel bar truss detachably connected to one side of the floor bearing plate. A frame formwork is arranged on the outer side of the frame structure and comprises a side formwork, the floor bearing plate is arranged on one side of the side formwork, and the upper end of the side formwork and the upper surface of the floor bearing plate are equivalent in height. The first supporting piece is provided with the end for supporting the steel bar truss plate. The ends of the side formwork and the floor bearing plate mutually abut or are arranged in a clearance mode, thus splicing and dismantling of the side formwork and the floor bearing plate are easy and easy to operate, slurry is not prone to leaking, the formed floor face and the beam face or a wall face are good in transition, the pour-formed floor face is good in integrity, shock and impact resistance and waterproofness, and the floor face is level and can be directly whitewashed, assembled and disassembled.

The invention discloses plasticizing bubble mixed light soil, which comprises the following main components: cement, a proper amount of water, a proper amount of bubble and plasticizing agent solution, wherein the plasticizing agent solution accounts for 3 to 6 weight percent of the light soil. The plasticizing agent solution is added into the common bubble mixed light soil to make the bubble mixed light soil quickly solidified and reduce the fluidity, and the plasticizing agent solution also has the flocculation function, so the bubble mixed light soil is difficult to disperse underwater; and the plasticizing bubble mixed light soil has the advantages of low fluidity, difficult leakage in the casting process and no dispersion in water, and is suitable for filling holes.

The invention discloses wave-absorbing foam which comprises a plurality of layers of flame-retardant foam bodies which are sequentially bonded and are soaked with absorbents. A layer of TPU film is adhered to each of the two flame-retardant foams on the outermost layer; and a double faced adhesive tape is adhered to one layer of TPU thin film. The invention also discloses a preparation process ofthe wave-absorbing foam, including: firstly preparing the absorbent, and soaking the flame-retardant foam in the absorbent; controlling the drying temperature to be 60-80 DEG C, drying the material for 1.5-2.0 hours to obtain the semi-finished product, sequentially bonding and assembling a plurality of flame-retardant foams with different absorbent contents after the semi-finished product is inspected to be qualified to obtain a plurality of layers of foams; then bonding a TPU film with the assembled multiple layers of foams, cutting and trimming the assembled foams, and finally inspecting thefinished product. The wave-absorbing foam is high in microwave absorption rate, high in strength and not prone to damage in the using process, slurry leakage is not likely to happen in the machiningprocess of the microwave-absorbing foam, and the rate of finished products is high.

The invention provides a concrete high pier construction formwork device, and belongs to the technical field of building equipment. The concrete high pier construction formwork device comprises a formwork system, a supporting system, a hydraulic lifting system and an operation platform; the formwork system comprises an inner template and an outer template; the supporting system comprises an enclosure truss, a plurality of outer lifting frames and a plurality of inner lifting frames; the enclosure truss is arranged outside the outer template; a distance between the enclosure truss and the outertemplate is 220mm to 280mm; the plurality of outer lifting frames are all fixedly connected with the enclosure truss, the outer template is mounted on the outer lifting frames, and the inner templateis mounted on the inner lifting frames; the hydraulic lifting system is used for driving the inner lifting frames and the outer lifting frames to reciprocate so as to enable the enclosure truss, theouter template and the inner template to synchronously move; the operation platform is positioned in a cavity formed by the surrounding of the inner template and positioned on the enclosure truss. Theformwork device is compact in integral structure and firm and reliable in structure; in the lifting process, a formwork is more uniform in stress and more convenient and rapid to lift.

The invention discloses a composite formwork for a building and a manufacturing method thereof. The composite formwork sequentially comprises a reinforcing structure layer (1), a grid supporting layer(2) and an inner structure layer (3) from outside to inside. The inner structure layer (3) seals the reinforcing structure layer (1) and the grid supporting layer (2) on the left side and the right side of the composite formwork for the building, and a plurality of concave-convex structures (4) capable of being spliced with one another are formed on the sealed parts on the left side and the rightside respectively. The manufacturing method comprises the following steps: 1) preparing the reinforcing structure layer (1); 2) preparing the grid supporting layer (2); 3) compounding the reinforcingstructure layer (1) and the grid supporting layer (2); and 4) preparing the inner structure layer (3). According to the formwork, the problems that in the concrete pouring process, defects are proneto occurring due to the fact that local vibration is not tight and filler is not compact are solved, the disclosed formwork is light in weight and high in strength, the service lifetime is prolonged,no release agent is used so that environmental pollution is avoided, and the manufacturing method is simple in process and low in energy consumption.

The invention discloses a tunnel embedded groove mold locking device, and relates to the field of engineering construction. The device comprises an embedded anchor rod, a locking screw rod, a groove channel, a clamp-shaped plastic part, a T-shaped connecting piece, a fastening steel plate and a bolt. The device is used in the field of installation and fixation of a large number of equipment pipelines of contact networks, evacuation platforms and the like in subway tunnels. Compared with an existing embedded groove, the embedded groove can be accurately locked with a mold, the integrity of themain body structure is guaranteed, demoulding is easy, and the tunnel space is saved.

The invention discloses an all-plastic building formwork which is simple in structure, low in construction cost and high in practicability. The all-plastic building formwork comprises a surrounding plate. A semi-arc-shaped supporting plate is arranged on one side of the surrounding plate. A supporting strip is arranged on one side of the semi-arc-shaped supporting plate. An adjusting hole is formed in one side of the supporting strip. A circular supporting plate is arranged on one side of the adjusting hole. A fixing protruding strip is arranged on one side of the circular supporting plate. Abase is arranged on one side of the fixing protruding strip. A small arc-shaped plate is arranged on one side of the base. By means of the all-plastic building formwork, through the tight combinationof concave-convex grooves, the flatness of a wall body is ensured, the wall body can be prevented from mortar leakage and is not prone to deformation, lots of cost is saved, and the formwork is suitable for use and popularization.

The invention discloses a plastering-free building wall construction technology, which belongs to the technical field of building construction. The plastering-free building wall construction technology includes the following steps: (1) base course cleaning: the residual mortar and sundries in the masonry part are cleared, and the parts protruding from the masonry surface and the exposed steel barheads and lead wire ends are cleared; (2) positioning and setting-out: measurement setting-out should be matched with the measurement net of the main structure, and the plane and elevation baselines of the external wall are turned out based on the baseline of the main structure; (3) constructional column form erecting, steel bar planting and binding: a pair of constructional column prefabricated templates is used as templates; and (4) polymer mortar mixing and group laying: building blocks are laid on an infilled masonry wall, and the joints of the infilled masonry wall and the constructionalcolumns are built into serrated racking structures. The prefabrication of combined fabricated buildings can be realized. Form erecting is carried out by using prefabricated concrete slabs instead of the traditional wooden formwork, and the building wall is not easy to crack and hollow. Compared with the traditional plastering technology, the quality of the wall has significant advantages.