62results about How to "Improve pull resistance" patented technology

The present invention relates to high-pressure rotary spraying and core inserting process to form pedestal pipe. The pedestal pile consists of core pile, column and pile depestal. The cylindrical or turned frustum-shaped core pile may be prefabricated reinforced concrete pile, in-situ deposited pile or other pile in different cross section shapes. The pile pedestal below the core pile has diameter greater than that of the core pile. The column has circular, semi-circular of fan-shaped cross section. There may be several auxiliary core piles around the main solid or hollow core pile and several rings in relatively great diameter around the column. The present invention has reasonable design, compact structure, high friction resistance, and wide application in building engineering, bridge engineering, civil engineering, water engineering, etc.

An embedded hanger type decorative stone slab is composed of surfacial stone layer, embedded hangers in the slot on the back of said surficial stone layer, and insulating layer on the back of said surficial layer. It is possible to attach a reinforcing layer to it. Its advantages are less consumption of stone, low cost, and high stress performance.

The invention discloses a novel tree root structure pile. The tree root structure pile is characterized by comprising a hollow column (1), wherein the upper end of the hollow column (1) is provided with a top cap (4), the lower end of the hollow column (1) is provided with a base (6), the side wall of the hollow column (1) is provided with a telescopic joint (2) communicated with the interior of the hollow column (1), and an expanding agent is filled in the hollow column (1). According to a construction process for the tree root structure pile, the telescopic joint extends outwards as tree roots in the construction process; and after the outward extension of the telescopic joint is completed, a filling material such as concrete and the like is poured so that the pile has higher strength and is completely stuck with the surrounding soil body. The pile of the type has reasonable structural design and wide application range; and on the premise that the length and the section area of the pile are not changed, the contact area between a pile foundation and a surrounding soil layer is obviously enlarged, so bearing capacity, friction resistance and stability of the pile are increased. Moreover, pulling resistance and sliding resistance of the pile are remarkably improved.

The invention belongs to the field of nanobiomedicine, and particularly relates to a method for preparing a spliced artificial bone-filled sustained-release material with a treatment effect. The method comprises the steps of by taking biodegradable nano-materials with biocompatibility as carrier attachments, spinning a film from mixing solution in which a medicine is loaded by an electrospinning technique; and alternatively pressing and forming the film and special powder at an interval, so as to obtain an artificial bone filler which has long-term sustained-release property and treatment effect, and can be mutually spliced. The artificial bone-filled sustained-release material disclosed by the invention has good biocompatibility and biodegradability, can achieve the treatment effect by controlled release of the loaded medicine; the artificial bone can be mutually spliced, and can be conveniently clinically spliced into different shapes according to difference of bone defects; and the stress intensity and the traction resistance of the artificial bone can be strengthened in difference directions according to different splicing methods.

The invention discloses a hybrid fiber concrete prefabricated laminated slab and a preparation method thereof. The hybrid fiber concrete prefabricated laminated slab comprises a bottom plate fiber concrete layer, and a post-pouring layer is arranged on the bottom plate fiber concrete layer; the bottom fiber concrete layer comprises cement, fly ash, silica fume, sand, a water reducing agent, steelfibers, polyvinyl alcohol fibers and water; the post-pouring layer is formed by pouring common reinforced concrete; the hybrid concrete slab is arranged in the lower tension area, the advantages of high tensile strength and good ductility of the hybrid concrete are effectively played, the upper part is pressed by adopting the common reinforced concrete, and the characteristics of the two types ofconcrete are fully played; the steel fibers are doped into the hybrid fiber concrete so that the later strength and toughness of the concrete are effectively enhanced; the thickness of the laminated slab is reduced, the self-weight is reduced and the cost is saved, the manufacturing process is simple, and application and popularization are facilitated.

The invention discloses an anti-pull-cut padlock capable of replacing a lock cylinder structure. Dual fixing of a protective cover fastening lock nail and a protective cover lock pin is adopted in thevertical direction, a lock cylinder main body is dually fixed through a lock cylinder fastening piece and lock cylinder fastening screws in the transverse direction, fixing is conducted through a lock cylinder lock pin in the longitudinal direction, thus a lock cylinder can be prevented from falling off in the three directions, and the anti-pull performance of the lock cylinder is greatly enhanced accordingly. In addition, in an opening state of the padlock, a lock hook is pulled out from a lock hook hole in a lock body, after a positioning bead and a positioning spring are taken out, the protective cover fastening lock nail can be unscrewed, then the entire lock cylinder structure is taken out, finally the lock cylinder lock pins and the lock cylinder fastening screws in the longitudinaldirection and the transverse direction of the lock cylinder structure are taken out to replace the lock cylinder, and the rest of parts of the padlock can still continue being used so that the cost of lock cylinder replacing can be greatly saved; and therefore, the structure is more reasonable, pull-cut prevention and lock cylinder replacing can be both achieved, and the cost of lock cylinder replacing is low.

The invention discloses a static pressure type rear support screw pile based on bionics, which comprises a pile tip, an outer sleeve, a flange and an empennage, the empennage is arranged at the upperend of the outer sleeve, the flange is arranged at the top ends of the empennage and the outer sleeve, an outer support blade is arranged at the lower part of the outer sleeve, and when the outer support blade is pressed at the top of the outer sleeve, the outer supporting blades are unfolded outwards. A built-in steel pipe or a flexible anchor rod is arranged in the outer sleeve, and the pile tipis fixedly connected with the built-in steel pipe or the flexible anchor rod. By optimally designing the pile body, the side resistance is small during static pressure pile sinking penetration, the outer supporting blades are unfolded through secondary sinking of the outer sleeve, the vertical uplift and compression resistance bearing capacity of the outer supporting blades is improved, the horizontal bearing capacity of the outer supporting blades is improved through the arrangement of the empennage, and the uplift bearing capacity of the pile side and the blades is improved by utilizing thecharacteristics of compression shrinkage and tension expansion of negative poisson ratio materials. The method has the advantages of small soil disturbance, low construction noise and environmental friendliness.

The invention discloses a prestressing anchor body assembly type frame hoop slope protection device and a construction method. The prestressing anchor body assembly type frame hoop slope protection device comprises a frame hoop used for restraining a slope surface and an anchor structure used for tightly pressing the frame hoop. An integrated anchor body (6) is formed by concrete bamboo joint blocks (2), connecting discs (3) and a screw (1), wherein the concrete bamboo joint blocks (2) and the connecting discs (3) are arranged and distributed alternately. An anchor hole (7) is formed in the slope surface of a soil body. The anchor body (6) is placed in the anchor hole (7), and the gap between the anchor body (6) and the anchor hole (7) is filled with concrete mortar. The construction method comprises the key steps that the integrated anchor body (6) is formed by all the concrete bamboo joint blocks (2), all the connecting discs (3) and the screw (1); and the anchor body (6) is placed in the anchor hole (7), and the concrete motor is poured into the gap between the anchor hole (7) and the anchor body (6). By the adoption of the structure and method, the construction speed can be increased, the construction period can be shortened, field construction is convenient and fast, the anti-drawing strength and the shearing strength are both ideal, the restraining effect on the soil body is good, the tightness degree can be adjusted along with the expansion and contraction of the soil body conveniently, and the slope protection area of the frame loop can be changed freely.

The invention relates to a reinforcing construction method of a micro pile for a soft soil foundation, which belongs to the field of micro piles. The reinforcing construction method comprises the following steps that a, a hole is drilled in the foundation; b, a grouting film bag is connected with the bottom end of a main grouting pipe, meanwhile, a first blocking plate is vertically connected with the bottom end of the main grouting pipe, and the first blocking plate is located above the grouting film bag; c, the main grouting pipe with the bottom end connected with the grouting film bag is inserted into the drill hole, then at least two auxiliary grouting pipes are inserted into the drill hole on the outer side of the main grouting pipe, and grout leakage holes are formed in the outer walls of the auxiliary grouting pipes; d, cement grout is injected into the auxiliary grouting pipes, the drill holes in the outer sides of the main grouting pipes are filled with the cement grout, and the cement grout is waited to be solidified; and e, after the cement grout is solidified, cement mortar is injected into the main grouting pipe at high pressure, and the grouting film bag at the bottom is expanded through the cement mortar to form a bag body. The grouting direction can be easily controlled on the basis that the bearing capacity of the micro pile is enhanced, and the problem of waste of the grout amount caused by grout runout is solved.

The invention relates to a butt joint prefabricated combined beam and a construction method. The butt joint prefabricated combined beam comprises a steel main beam, and the steel main beam comprises asteel beam bottom plate and a steel beam web fixed to the steel beam bottom plate; a bottom-layer bridge deck slab is included and arranged at the top of the steel beam web, and the bottom-layer bridge deck slab comprises a concrete web and a concrete top plate; the steel beam web is in butt joint with the concrete web through transverse shear nails; and the height of the steel beam web and the height of the concrete web are changed in the longitudinal bridge direction. By adjusting the heights of the steel beam web and the concrete web, a structural stress is more reasonable, and the durability of the combined beam structure is enhanced while the shear resistance and the pulling resistance of the steel-concrete combined beam are enhanced.

The invention discloses a pre-applied force anchoring system for a slope protection device and a construction method thereof. The pre-applied force anchoring system comprises a threaded rod (1), concrete bamboo joint blocks (2), connection discs (3), a spring (4) and a nut (5). The concrete bamboo joint blocks (2), the connection discs (3) and the threaded rod (1) form an integrated anchoring body (6), and the concrete bamboo joint blocks (2) and the connection discs (3) are arranged at intervals. The anchoring body (6) is placed into an anchor hole (7), and the gap between the anchoring body (6) and the anchor hole (7) is filled with concrete mortar. The nut (5) is screwed on the threaded rod (1) in a matched mode. The nut (5) tightly presses the slope protection structure and the concrete bamboo joint blocks (2) through the spring (4). The construction method is characterized in that all the concrete bamboo joint blocks (2), all the connection discs (3) and the threaded rod (1) form the integrated anchoring body (6), the anchoring body (6) is placed into the anchor hole (7), and the gap between the anchoring body (6) and the anchor hole (7) is filled with the concrete mortar. According to the pre-applied force anchoring system for the slope protection device and the construction method thereof, the construction speed can be increased, site construction is convenient and quick, the anti-drawing strength and the shearing strength are both ideal, and the constraint effect on soil bodies is good.

The invention discloses a shear resistant combined structure of a bridge. The shear resistant combined structure comprises a supporting structure and a shear key arranged on the supporting structure, wherein the shear key comprises a first shear resistant plate, second shear resistant plates and shearing rods; the top end of the first shear resistant plate and the top ends of the second shear resistant plates are mutually connected, and the bottom end of the first shear resistant plate and the bottom ends of the second shear resistant plates are respectively connected with two side edges of the supporting structure; each shearing rod laterally penetrates through the first shear resistant plate and the second shear resistant plates; a plurality of through holes allowing reinforced concrete to be embedded are formed in the first shear resistant plate and the second shear resistant plates; the first shear resistant plate and the second shear resistant plates form the shape of a triangle or a trapezoid, so that the structural shear resistant performance is greatly improved; the reinforced concrete is embedded by the through holes for resisting upward pulling force generated because the left side and the right side of the bridge are stressed unevenly; the shearing rods can strengthen the completeness of the combining of the shear key and the reinforced concrete, so that pulling resistant capacity and collapsing resistant capacity are effectively improved; and during construction, the construction cost can be reduced, and the construction efficiency can be improved. The invention also discloses the bridge comprises the shear resistant combined structure, and the bridge has the above beneficial effects.

The invention aims at providing a construction method of a concrete pile by soil extraction and pressure filling. The construction method is characterized by comprising the following steps: 1, pressing a soil extraction device with a material conveying pipe into a soil body by one or several modes of vibration, hammering and static pressing, wherein the soil body rushes into an inner cavity of the soil extraction device in the sinking process; 2, pumping a cement mixture at the bottom of the soil extraction device through the material conveying pipe and lifting up the soil extraction device at the same time, keeping doing the operations until the soil extraction device reaches the surface of a foundation, to form a filling pile body; and 3, discharging the soil body in the soil extraction device, and carrying out subsequent construction on the filling pile body. According to the construction method, the construction procedures of hole forming by soil extraction and pile body filling can be completed at a time; the soil extraction and hole forming speeds are high, and the working efficiency is high; and meanwhile, the construction method is applicable to a pile foundation and a compound foundation, and is large in application range.

The invention provides a steel tube miniature pile. The steel tube miniature pile comprises a steel tube, an inner slurry layer located inside the steel tube and an outer slurry layer located outsidethe steel tube, and the steel tube comprises an ordinary steel tube segment, an anchoring segment and a fixed end which are connected successively from top to bottom; the anchoring segment is providedwith a grouting hole and a clamping throat for assembling a rubber film, the rubber film sleeves the outer wall of the grouting hole and is used for sealing the grouting hole, and the rubber film isfilled with cement slurry to form an convex structure; and the fixed end is arranged at the lowermost end of the steel tube and used for embedding into a stratum. The invention further provides a specific construction method of the steel tube miniature pile. According to the construction method of the steel tube miniature pile, the situation that grouting slurry in the steel tube does not flow outcan be guaranteed, the problem of slurry runout at the bottom of the pile is solved, the grouting amount is controllable, and the grouting cost is lowered; and meanwhile, friction resistance of the side wall of a pile body can be increased, and the overall compression resistant, anti-pull and axial load resistant capacity of the steel tube miniature pile is improved.

The invention relates to the field of civil engineering, in particular to a novel BNT carrier pile and a construction equipment construction method of the novel BNT carrier pile. A pile hammer, a diesel hammer or a vibration hammer is used for replacing a shaking or rotary device as power, and a dowel bar and a replacement standard pile hammer are strongly combined with the BNT technology to achieve construction of the carrier pile. The high-quality potential of high bearing capacity of the carrier pile and the advantages of high pile forming quality and high applicability of the BNT technology are fully explored; some problems existing in the original carrier pile forming concept and construction are solved; through diversification of construction forms and equipment and by taking the three-strike penetration requirement as a criterion, the design and the construction are enabled to be based on the evidence; and complexity is replaced by simplicity, the process is simplified, and finally the BNT carrier pile with high bearing capacity, good effect, high speed, low cost and wider application range is realized to meet the increasingly high different requirements of engineering construction on pile foundations.

The invention discloses a structure improvement of a connector plug end for vehicles. The connector plug end is provided with a plastic body, two wider symmetrical surfaces in the four surfaces of the plastic body are an upper surface and a lower surface, the other two symmetrical surfaces are a left side surface and a right side surface, and plastic elastic buttons are respectively and integrally connected to the outer surfaces of the left side surface and the right side surface, have elasticity in the left direction and the right direction, and can be buckled with the corresponding positions of accessories without external force so that the function of buckling can be realized without using stainless steel elastic sheets. The connector plug end can quicken the assembling sped and has the advantages of convenient introducing automation, reduction of manufacturing cost and enhancement of pulling resistance.

The invention discloses a fabric for children warmth and a preparation method of the fabric. The fabric comprises an outer layer, a PU (polyurethane) membrane layer, a flax fiber fabric layer, a coralfleece fabric layer, a far infrared radiation layer, an anti-static layer and an inner layer, wherein the PU membrane layer is arranged under the outer layer; the flax fiber fabric layer is arrangedunder the PU membrane layer; the coral fleece fabric layer is arranged under the flax fiber fabric layer; the far infrared radiation layer is arranged under the coral fleece fabric layer; the anti-static under layer is arranged under the far infrared radiation layer; and the inner layer is arranged under the anti-static layer. The fabric has the beneficial effects that far infrared rays of 4-14[mu] m which are mostly expected by human bodies can be radiated back, the far infrared rays have resonance with human cells to achieve a heat effect, the heat preservation effect can be realistically improved, the heat preservation effect is good, and meanwhile, the fabric has the advantages of being solid, durable to wearing, not easy to damage, and the like.

The invention provides a wind-resistant and overturn-preventing external expansion pole foundation for electric power. The pole foundation is arranged underground and used for supporting a pole, so that the pole has better wind-resistant, overturn-preventing and anti-pulling capacity; and the foundation can be reused during pole replacement or line transfer in the future, and investment is not wasted. The foundation is characterized in that the foundation is placed on the ground and directly driven or pressed underground after being straightened; a four-way expansion board is arranged at the lower part of the foundation and can be increased and decreased according to actual conditions, a nut is tightened to allow a two-way conical screw to rise, the expansion board expands in each direction, and the lower part of the expansion board is claw-shaped to strengthen the stability and anti-pulling capacity of the foundation; an inverted horn-shaped countersink is formed in the upper part ofthe foundation, and positioning bolts are arranged on the periphery of the upper part of the inverted horn-shaped countersink; and a heavy electric pole is placed in the inverted horn-shaped countersink, the lower end of the heavy electric pole is clamped at the bottom of the inverted horn-shaped countersink, the positioning bolts adjusts the vertical degree of the heavy electric pole, then, a wedge block is plugged in the inverted horn-shaped countersink to further fix the heavy electric pole, and finally, the countersink is filled with soil.

The invention belongs to the technical field of power transmission line iron tower foundation design, and particularly relates to a salt lake area power transmission line iron tower foundation construction method. The construction method comprises the following steps that S1, a foundation pit is excavated, and the foundation pit is treated in a composite foundation treatment mode; S2, a foundation structure is optimized, a primary beam structure and a secondary beam structure are added on a foundation bottom plate, and the foundation structure is designed into an integral foundation type; S3, glass fiber reinforced plastics are adopted for carrying out wrapping anti-corrosion treatment on all parts of the foundation structure; S4, soil covering treatment is conducted on the foundation pit, and protection treatment is conducted on a tower footing slope; and S5, waterproof treatment is conducted on the base face of the tower footing. The method systematically solves the problems of foundation instability and salinized soil corrosion of the power transmission line iron tower in the salt lake area, ensures safe and stable operation of the power transmission line, and has important significance for improving the economical efficiency and the safe stability of industrial production in a salt lake mining area and promoting sustainable and healthy development of the industrial production in the salt lake area.

The invention discloses a shear part of a spiral spring bolt and a construction method. The shear part comprises an elastic sleeve, an elastic nut, a screw rod and a nut, the elastic sleeve is connected to the screw rod and the elastic nut in a sleeving mode, one end of the elastic nut abuts against the top of the elastic sleeve, the other end of the elastic nut abuts against one end of the screw rod, the other end of the screw rod is in threaded connection with the nut, the end, abutting against the elastic nut, of the screw rod is conical, the elastic sleeve comprises an elastic steel plate, and the elastic steel plate is wound around a rod body of the screw rod by at least three circles. The nut is tightened to apply pre-tightening force, the elastic sleeve can be extruded through the screw rod, due to the fact that the elastic sleeve has elasticity, when the elastic sleeve has an expansion effect, the elastic sleeve is not damaged, the screw rod interacts between the nut and the elastic nut, and the elastic sleeve and a concrete block can generate an anchoring effect, so that the friction force between the shear part and the steel-concrete interface is increased, and the friction force between a bridge deck and a steel beam is increased.