22results about How to "Reduce collapse" patented technology

The utility model discloses a foundation joint reinforcing structure capable of improving the crack resistance of a traditional brick structure wall body, which belongs to the technical field of brick structure wall body reinforcement, and comprises a brick wall, a wall joint is filled in the brick wall, and the wall joint is arranged in the brick wall. A plurality of sets of symmetrically-arranged mounting steel bars are arranged at the horizontal position of the wall seam, threaded rods are arranged at the positions, close to the two ends, of the opposite faces of the two mounting steel bars which are symmetrical front and back, a pair of connecting blocks are fixedly connected to the outer sides of the mounting steel bars, and connecting plates are arranged on the outer sides of the connecting blocks in a clamped mode. A traditional brick wall body can be reinforced and protected, the anti-cracking capacity of the wall body is improved, the collapse situation of the brick wall body is reduced, the distance adjusting assembly is arranged, the distance of the reinforcing assembly in the vertical direction can be adjusted so as to adapt to wall body gaps of different specifications, and the use range of the reinforcing structure is widened.

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 present application provides a chest drainage tube and a chest drainage system with the chest drainage tube, comprising a collecting tube and a discharge tube integrally extended from the collecting tube, wherein at least a first drainage channel and at least a second drainage channel are formed in the collecting tube, the first drainage channel is used for draining liquid in the chest cavity, and the second drainage channel is used for draining gas in the chest cavity; a discharge channel is formed in the discharge tube, the discharge channel is communicated with the first drainage channel and the second drainage channel, so as to discharge the liquid and / or the gas entering through the first drainage channel and the second drainage channel to the outside of the body; the collecting tube comprises a closed section and an open section, the open section is integrally extended from one end of the closed section, and the closed section is located between the discharge tube and the open section; the first drainage channel and the second drainage channel located in the closed section are closed channel structures, and the first drainage channel and the second drainage channel located in the open section are open channel structures, so that the medium in the chest cavity enters the corresponding drainage channel through the open section.

The utility model relates to a yarn guide device technical field especially relates to a kind of high-efficiency yarn guide device of big round machine, including yarn guide disc, the inner cavity is obtained in yarn guide disc inside, the inside center of inner cavity is equipped with driving gear, the inner ring of inner cavity is equipped with inner gear ring, a plurality of planetary gears are meshed and connected between driving gear and inner gear ring, a plurality of the planetary gears are respectively driven and connected with adjusting assembly.The utility model drives planetary gear to drive adjusting assembly movement by driving motor, to make yarn guide rod drive yarn guide assembly movement, realize that the position of yarn guide assembly is adjustable, without manual disassembly adjustment, reduce downtime, simultaneously, through the passive response yarn tension fluctuation of the elastic action of yarn guide rod and realize dynamic adjustment, make yarn guide assembly always contact with yarn, by setting several groups of yarn guide assembly, yarn is supported in multiple sections, yarn is evenly subjected to tension effect in guiding process, effectively reduce the fault that yarn collapses or is mutually entangled in conveying process, to improve guiding efficiency.

The application relates to the technical field of building construction, and provides a subway communicating port multi-support collaborative construction method. The method is used for deep foundation pit communicating port engineering which is communicated with a subway line and has two concrete supports arranged near a subway foundation pit, a three-stage support system is adopted, and an automatic monitoring and manual double-track subway monitoring system is arranged to implement construction. The application has the effects of dispersing stress and overall monitoring.

The application provides a carbon-coated ion-doped vanadium oxide material and a preparation method and application thereof. The preparation method comprises the following steps: performing a solvothermal reaction on a reaction solution containing doped metal ions, a vanadium oxide intermediate solution, an oxidizing agent, a solvent and glucose, and calcining a solid obtained in a protective atmosphere to obtain the carbon-coated ion-doped vanadium oxide material. The doped metal ions are selected from one or more of Fe 3+ , Ni 2+ and Cu 2+ . The application improves the conductivity of the vanadium oxide material and the electrochemical stability in the cycle process by embedding metal ions in the vanadium oxide.

This utility model discloses a sponge with good resilience, comprising a sponge base layer, a rebound material layer, a sponge interlayer, a mesh layer, a sponge surface layer, and a protective layer. The sponge base layer, rebound material layer, sponge interlayer, sponge surface layer, and protective layer are bonded together in sequence from bottom to top, and a mesh layer is provided between the sponge interlayer and the sponge surface layer. The rebound material layer has a wavy structure, and the upper surface of the rebound material layer is adapted to the lower surface of the sponge interlayer. The wavy structure increases the contact area between the rebound material layer and adjacent sponge layers, which can better disperse and absorb external forces. The combination of crests and troughs allows the rebound material layer to better disperse and absorb pressure when subjected to external forces, avoiding excessive compression of the sponge, reducing sponge deformation and collapse, and ensuring its performance stability. When the external force acting on the sponge is removed, the sponge can quickly return to its original shape, significantly improving the sponge's resilience.

The application discloses a preformed mesh fixing support for oral soft tissue widening, relates to the technical field of oral implantation and repair, and comprises a mesh main body, an edge elastic memory support ring and a suture guiding ring. The mesh main body is made of degradable flexible material. The central part of the mesh main body is a central high-density compression area, and the periphery is a peripheral low-density decompression area. The mesh hole density of the central high-density compression area is higher than that of the peripheral low-density decompression area. The edge elastic memory support ring is arranged at the peripheral edge of the mesh main body, and the suture guiding ring is arranged at a specific position of the edge of the mesh main body and is used for guiding the suture to pass through to realize the fixation of the mesh main body. The application can solve the problems of instability of fixation, complexity of operation, poor area adhesion, easy curling and displacement of material, easy compression of edge blood supply, easy falling of the protection material of the upper palate supply area and the like when the existing soft tissue graft and replacement material mainly rely on traditional suture fixation.

The utility model discloses a double-layer composite leakproof paper cover which comprises an arranged paper cover body, a hierarchical assembly is arranged in the paper cover body, the hierarchical assembly comprises a first inner layer installed in the paper cover body, and a second inner layer used for increasing the strength of the paper cover body is arranged on the first inner layer. A waterproof surface layer is arranged on the second inner layer, a leakage-proof bottom layer is installed below the first inner layer, and air holes for exhausting are formed in the paper cover body. According to the double-layer composite leakproof paper cover, the first inner layer of the paper cover body is made of the paper material, the second inner layer at the upper end of the paper cover body enhances the overall strength and protection performance, provides certain structural support and prevents internal articles from being damaged or affected by external pressure, and the surface layer on the second inner layer is made of the waterproof coating material, so that the paper cover body is prevented from being damaged due to damp; the replacement frequency caused by material damage is reduced, the overall structure is simple, production operation is convenient, and the production complexity and cost are reduced.

This invention relates to the field of fertilizer technology and discloses a biomass fertilizer for improving the soil environment and its preparation method. The invention uses lignin graft copolymer and modified sodium alginate as raw materials, and prepares a composite hydrogel using the calcium ion in-situ gelation method. Biochar, urea, and potassium dihydrogen phosphate are then added to the hydrogel to obtain a biomass fertilizer for improving the soil environment. The pyrrole groups in the lignin graft copolymer and the nitrogen atoms in the Mannich base structure act as hydrogen bond acceptors, enhancing the hydrogen bonding with the hydrogel molecular chains and improving the water retention capacity of the fertilizer. The rigid structure of lignin itself also plays a role in the gel network, reducing the collapse of the cross-linked network, thereby forming a richer three-dimensional porous structure and enhancing the water retention capacity of the fertilizer. Quaternary ammonium salt groups can disrupt the bacterial cell membrane structure, leading to the extravasation of bacterial substances and enhancing the antibacterial effect of the fertilizer. Thiourea groups can bind to enzymes within bacterial cells, exerting an antibacterial effect.

This invention belongs to the field of agricultural microbial technology, and discloses a strain of *Chlorella vulgaris* and its application in improving the stability of mushroom residue substrate. The *Chlorella vulgaris* strain is *Chlorella vulgaris* (…). Chryseobacterium The strain JYT19 (sp.) was deposited on February 2, 2026, with accession number CGMCC No. 37640. It is a new strain isolated from coconut coir material. Inoculating this strain into mushroom substrate significantly improves the physical structural stability of the substrate, delays collapse and compaction, and extends its service life. Simultaneously, it has beneficial effects on plant growth and quality improvement. This invention provides an environmentally friendly and efficient microbial technology solution to address the problems of rapid degradation and poor stability of mushroom substrate, and has significant application value in the fields of soilless cultivation in facility agriculture and resource utilization of organic waste.

The invention provides a carbonate rock bursting pressure calculation method, system and equipment and a medium. The carbonate rock bursting pressure calculation method comprises the steps that the variable quantity of each physical property parameter and mechanical parameter of a rock core compared with the non-soaked rock core is obtained, and a relational expression that the variable quantity of each parameter changes along with the soaking duration is obtained through index fitting; drawing a cross plot according to the static Poisson's ratio and the static Young's modulus and the dynamic Poisson's ratio and the dynamic Young's modulus, and performing linear fitting to obtain a relational expression of dynamic and static conversion; for the target well, dynamic parameters obtained through logging calculation are converted into static parameters, and then physical property parameters and mechanical parameters are corrected to be in the non-soaked state according to the soaked time; and constructing a fracture pressure calculation model, introducing the corrected physical property parameters and mechanical parameters, and calculating the fracture pressure of the carbonate rock. According to the method, drilling fluid invasion dynamic conditions are considered, and the bursting pressure calculation is more accurate.

This invention relates to the field of road construction technology and provides a construction device for asphalt paving of highway bridges. The device includes a storage bin, a hook, a steel wheel, a discharge port, and a discharge roller. The hook is installed on the front side of the outer wall of the storage bin, the steel wheel is installed on the rear side of the outer wall, the discharge port is fixedly connected to the bottom of the storage bin, and the discharge roller is rotatably connected to the inside of the discharge port. The beneficial effects of this invention are: by bringing two carriages close together, the blades cut the initially laid asphalt material, allowing air trapped inside the asphalt to be expelled after the asphalt is cut. This effectively avoids the problem of insufficient overall road compaction caused by the inability of the aggregate and asphalt mortar to form a dense, interlocked structure after asphalt paving. By expelling air from the asphalt material, the high-temperature shear resistance of the asphalt mixture can be effectively improved, the frequency of plastic flow in the road material can be reduced, and the service life of the road surface can be increased.

The utility model discloses an anatomical arc-shaped ankle joint prosthesis, which belongs to the technical field of joint prostheses and comprises a first prosthesis plate, and a first coating plate is arranged on the bottom surface of the first prosthesis plate. A fixing plate is arranged on the top face of the first prosthesis plate, a second prosthesis plate is arranged on the top face of the fixing plate, and a second coating plate is arranged on the top of the second prosthesis plate. According to the arc-shaped ankle joint prosthesis, through the arrangement of the first five-star column and the second five-star column, compared with a traditional arc-shaped ankle joint prosthesis, the installation directions of the first five-star column and the second five-star column are changed through the design, so that the arc-shaped ankle joint prosthesis can be installed from a front approach, the situation that a fibula needs to be broken in a traditional operation is avoided, and operation wounds are reduced; postoperative rehabilitation is promoted, the front-back width of the ankle joint prosthesis is changed, the ankle joint prosthesis better conforms to physiological anatomy of a human body, the contact area of a bone and the prosthesis is increased, pressure borne by the surface of the prosthesis is dispersed, and prosthesis collapse caused by strength concentration is reduced.

The invention belongs to the technical field of self-assembled microsphere arrays, and particularly relates to a pore-adjustable and stable self-assembled microsphere array as well as a preparation method and application thereof. The microsphere array disclosed by the invention is self-assembled in a manner of combining electrostatic mediation and covalent coupling, and contact among the microspheres is guided by virtue of electrostatic interaction, so that guidance is provided for realizing controllable covalent coupling among the microspheres by virtue of Schiff base reaction. The combination of covalent coupling and electrostatic force can improve the flexibility of the microsphere array and the stability of the combination between the microspheres, so as to improve the stability of pores between the microspheres, reduce the collapse of the microsphere array, provide a good and controllable three-dimensional space for the creeping growth of cells, and facilitate the promotion of wound healing and growth. The self-assembled microsphere array is suitable for application modes such as smearing or injection, and the scene applicability is greatly improved.

A planarization method of a conductive column and a substrate structure, the method comprising: providing a substrate in which a conductive column is formed, the conductive column having a partial height protruding from a first surface of the substrate, and the portion of the conductive column exposed from the first surface serving as a protruding portion; forming a passivation layer conformally covering sidewalls and top surfaces of the protruding portion, and the first surface, the passivation layer including a horizontal portion located on the first surface; forming a sacrificial layer covering the horizontal portion; and performing planarization processing on the sacrificial layer, the passivation layer and the conductive column to remove the sacrificial layer, the rest of the passivation layer higher than the horizontal part and the protruding part higher than the horizontal part, and enabling the top surface of the protruding part to be flush with the top surface of the horizontal part. The sacrificial layer covers the top surface of the horizontal part of the passivation layer, so that the vertical distance from the end, protruding out of the first surface, of the conductive column to the top of the sacrificial layer located on the first surface is smaller, and the transverse shear force resistance of the conductive column during planarization processing is improved. The probability that the conductive column collapses or accidentally shifts during planarization processing is reduced.

The application relates to the technical field of shoes, and provides a leisure shoe with a hardening-resistant vamp, which comprises a vamp, the vamp comprises a surface layer, an elastic layer and an inner layer which are sequentially arranged from outside to inside, the elastic layer comprises an elastic framework and elastic pieces, the elastic framework is provided with a plurality of reset grooves, the elastic pieces are provided in groups, and all the elastic pieces are respectively arranged in the reset grooves. The leisure shoe with the hardening-resistant vamp can delay the hardening effect of the vamp.

The application provides an enhanced HEMT power tube device and a preparation method thereof, wherein a four-layer composite structure of a GaN protection-charge regulation layer, an AlN first etching stop layer, a P-type GaN main body layer and a P-type AlGaN top layer barrier layer is sequentially arranged from bottom to top, the P-type AlGaN top layer barrier layer is used to increase the Schottky barrier height, inhibit the positive forward current of the gate and improve the gate voltage resistance; the P-type GaN main body layer is used to realize the enhanced characteristics of the device by depleting the two-dimensional electron gas below, and the threshold voltage is controlled; the Al-F strong bond energy characteristics are used in the AlN first etching stop layer to realize etching self-stop, and the etching damage to the AlGaN barrier layer is reduced by the joint action of the GaN protection-charge regulation layer; the GaN protection-charge regulation layer is used to reduce the interface state density, reduce the dynamic on-resistance and reduce the occurrence of current collapse, and meanwhile, the gate edge electric field distribution is smoothed, and the breakdown voltage is improved. In addition, a first passivation layer, a source field plate, a second passivation layer and a floating field plate can be further formed, and the GaN protection-charge regulation layer is used to jointly act to relieve the electric field concentration, improve the voltage resistance and reliability of the gate.

The application discloses a kind of coastal saline-alkali grassland severe salt spot hard soil in situ loose repair method, belong to saline-alkali soil improvement technical field.For the problem that existing mechanical ploughing is easy to be turned to deep layer salt and compacts lower soil, the method of the application is when soil moisture content is 70%~80% of field capacity, the lance is penetrated to 40~60cm hard soil layer under ground surface, high-pressure gas is released to form pore fissure, then high-pressure gas injection soil amendment mixture is carried out, the lance is taken out after expanding hole and filling in gravel layer and coarse sand and calcium oxide mixture sand column layer in turn.The application is used for in situ loose repair of severe salt spot hard soil, which can improve deep soil structure and continuously discharge salt.

The application provides a silica-based aerogel felt and a preparation method and application thereof. The silica-based aerogel felt comprises a fiber felt and silica-based aerogel skeletons distributed in the fiber felt, and the silica-based aerogel skeletons have a nanoscale pore structure. In the application, an aluminum source is added to a silica sol to form a uniform silicon-aluminum binary system, so that part of silicon atoms in Si-O-Si bonds in the formed silica-based aerogel felt is replaced by aluminum atoms to form Si-O-Al bonds with higher high-temperature resistance, and the occurrence of the structure collapse of the silica aerogel under high temperature in the prior art can be reduced. Research shows that the thermal conductivity of the silica-based aerogel felt is not more than 0.025 W / (m*K), the silica-based aerogel felt can be applied at 1000 DEG C, and the cyclic compression performance is good, which indicates that the silica-based aerogel felt has excellent heat insulation performance, high-temperature resistance and elasticity.

The application relates to the technical field of pollutant adsorption, and discloses a catalyst-loaded activated carbon adsorption material and a preparation method. Water, a precursor and zinc nitrate are added into a flask, stirred and mixed, dried after filtration, ground and mixed with potassium hydroxide, placed in a tube furnace, calcined, and the catalyst-loaded activated carbon adsorption material is obtained. The activated carbon has a high specific surface area and a high pore volume, can promote the adsorption of formaldehyde, the nano zinc oxide is uniformly distributed in the activated carbon matrix and is not prone to agglomeration, has higher photocatalytic degradation performance on formaldehyde, and significantly improves the removal rate of the catalyst-loaded activated carbon adsorption material on formaldehyde.

This invention provides an electrode assembly and a battery, relating to the field of electrode assembly technology. The electrode assembly is a wound structure formed by stacking positive and negative electrode sheets and winding them along a winding direction. The electrode assembly includes a straight region and a corner region, with the corner region located at both ends of the straight region. The positive electrode sheet includes a positive electrode starting segment located in the straight region, and the negative electrode sheet includes a negative electrode starting segment extending beyond the positive electrode starting segment in the opposite direction of the winding direction. The negative electrode starting segment extends through the corner region and terminates in the straight region. The projection of the positive electrode starting segment along a direction perpendicular to the straight region at least partially coincides with the projection of the negative electrode starting segment along a direction perpendicular to the straight region. The free end of the negative electrode starting segment shifts to form an approximately triangular shape with the negative electrode sheet, providing support for the corner region and reducing the collapse of the electrode assembly. This can further reduce the slippage of the negative electrode sheet and improve the problem of lithium plating in the corner region.