68results about How to "Solve sinking" patented technology

The invention discloses an inclined separated layer solid filling coal mining method for a super thick coal seam, which is suitable for the exploitation of an 'under three' super thick coal seam. The method comprises the following steps: determining the number of inclined separated layers according to the principle that thickness of each separated layer is 2.5-4.5 m; adopting a exploitation sequence that mining layer by layer, and filling at a next row; arranging tunnels and equipment according to the conventional solid filling coal mining method; carrying out a circulating sequence that coal mining firstly, metal nets and bamboo fences paving secondly, and filling finally to complete the filling exploitation of a first mining surface and a first separated layer; meanwhile, mining according to the same filling coal mining method under the shield of a manual false roof formed by the first separated layer at the corresponding position of a second separated layer 4 months after a working face of the first separated layer finishes mining; circulating in the way that the exploitation of one separated layer is performed under the shield of a manual false roof manufactured by an upper separated layer continuously until the whole super thick coal seam is mined out. Through the adoption of the method, resources of the 'under three' super thick coal seam can be utilized, the rock formation movement and earth surface sinking can be effectively controlled; and the recovery ratio is high, the production efficiency is high, the cost is low, and the method has wide practicability in the field of thick coal seam filling exploitation.

The invention relates to the technical field of stereoscopic greening, in particular to a landscape combined-type stereoscopic greening smart system. The landscape combined-type stereoscopic greening smart system comprises a rainwater collection and purification system, a water guiding irrigation system, green plant systems, an outer electronic control system and a water storage purification system, wherein the water guiding irrigation system comprises a detachable combined-type water guiding pipeline framework and greening module clamping grooves; the detachable combined-type water guiding pipeline framework is fixed on a construction vertical plane; the greening module clamping grooves are formed in and communicated with the detachable combined-type water guiding pipeline framework; each green plant system is arranged in one of the corresponding greening module clamping groove; the upper end and the bottom end of the detachable combined-type water guiding pipeline framework are respectively connected with the rainwater collection and purification system and the water storage purification system; a solenoid valve is arranged at the water outlet of the rainwater collection and purification system and electrically connected with the outer electronic control system. The landscape combined-type stereoscopic greening smart system is simple in structure, relatively high in practicability and low in use cost, meanwhile, can realize cyclic utilization of water resources, achieves the effects of attractive appearance and environmental protection, and can effectively economize resources.

The invention discloses an experimental method for shearing of a structural surface of a columnar jointing. The method comprises adjusting a rock structural surface to be located in a shearing seam of upper and lower shearing boxes; sleeving screw sleeves to five internally-inserted vertical screws, using plastic films to separate and wrap; vertically moving the internally-inserted vertical screws through adjusting rods, so that the structural surface of the columnar jointing rock is located between the shearing seam; selecting proportional epoxy resin mortar to form epoxy resin mortar; and pouring the epoxy resin mortar into the upper and lower shearing boxes for cooling and solidification. The invention further discloses an experimental apparatus comprises the upper and lower shearing boxes, the internally-inserted vertical screws and the adjusting rods, wherein a bottom of the lower shearing box is provided with vertical screw holes, walls of the lower shearing box are provided with horizontal screw holes, and contacted parts of the adjusting rods and the internally-inserted vertical screws form worm structures. According to the invention, fine adjustment of the rock position can be realized, a surface of the epoxy resin mortar can be always maintain as a plain, a molding is relatively good, problems of rock sinking in cement mortar can be solved, and thus the structural surface of the rock can be easily positioned.

The invention relates to the technical field of vehicle part structures, in particular to a vehicle front face structure. The vehicle front face structure comprises a fender support, the fender support is fixed to the two sides of a vehicle body in the Y direction and used for supporting a fender and an engine hood, and a front bumper upper framework is fixed to the front end of the vehicle body in the X direction and used for supporting a front bumper surface layer and the engine hood; the vehicle front face structure further comprises a headlamp assembly covered with the front bumper surfacelayer; the fender support comprises a fender front support body used for supporting a fender outer plate and a fender lower support body fixed to an edge beam of the side of the vehicle body; the headlamp assembly is fixedly connected with the fender lower support body through a lower fixing structure at the Z-direction lower end, fixedly connected with the front bumper upper framework through aside fixing structure at a Y-direction side part and fixedly connected with the fender front support body through a rear fixing structure at the X-direction rear end. The vehicle front face structureis reasonable in distribution, improves the structural stability of the headlamp assembly and a daytime driving lamp, and solves the submerging problem caused by concentration of weight.

The invention discloses an urban road inspection well. The urban road inspection well comprises a shaft, a concrete precast block, a well periphery reinforcement cage, a well base, a well lid, a template, an early strength concrete layer and an asphalt surface layer. A well periphery support structure of the inspection well mainly includes two parts of the well periphery reinforcement cage and the earth strength concrete layer; the two parts are organically combined to effectively treat such more general and frequent diseases as well periphery sinking and well periphery road surface destruction of the inspection well frequently generated in urban road pavements; and the inspection well not only solves the frequent generation problems of well periphery sinking and local destruction, but also can overcome the limited difficulty of the construction time of urban roads. The inspection well structure is also suitable for repairing and transforming the destructed inspection well, and can achieve the effects of quick repair of the inspection well with urban road well periphery sinking and local destruction, quick traffic opening and thorough treatment of well periphery diseases.

The invention discloses a construction method for a tunnel crossing through a backfilling zone of super high-rise buildings. The construction method includes the following steps of conducting construction preparation; conducting advanced support on multi-layer self-advancing anchor bolts; conducting construction of sectional drift headings; and conducting construction of a similar cantilever reinforcing liner structure. By adopting advanced support of the multi-layer self-advancing anchor bolts, annular grouting reinforcement of small pipes and construction of the similar cantilever reinforcing liner structure, the problem that ground subsidence caused by backfill falling down in the tunnel construction process is effectively solved, safety risks are greatly reduced, constriction period cost is saved, and safety, environment protection, and economic benefits are improved dramatically.

The invention discloses a semi-cast blast furnace hot blast stove pipe. The semi-cast blast furnace hot blast stove pipe comprises a steel shell composed of an upper steel shell and a lower steel shell; a masonry structure layer is laid in the lower steel shell; and an integrally-cast castable layer is arranged in the upper steel shell. The invention further discloses a construction method of thesemi-cast blast furnace hot blast stove pipe. The method comprises the steps that a whole reserved casting hole is sprayed; a fiber felt layer, an insulating brick layer and a working lining brick layer are sequentially laid on the surface of a sprayed layer of the lower steel shell; fiber felt layers are sequentially laid on the surface of the sprayed layer of the upper steel shell; an upper steel shell casting template is mounted; an expansion gap template is mounted; and casting construction is conducted. The pipe and the construction method have the beneficial effects that a lower lining of the hot blast stove pipe adopts a traditional masonry material and a traditional masonry method, an upper lining is casted and molded by casting a castable once, gaps in traditional pipe structurescan be reduced, a weak area is avoided, and the phenomena of sinking, breaking or even collapse of upper brick linings which often occur in the using process of the hot blast stove can be effectivelyavoided.

The invention belongs to the technical field of investment casting processes, and relates to an investment casting process of a complex thin-wall hollow aluminum alloy aviation part. The investment casting process comprises the following steps that a water-soluble ceramic core is manufactured by adopting a 3D printing mode, the water-soluble ceramic core is coated with an organic waterproof coating, and drying is carried out on the water-soluble ceramic core; a wax injection mold is manufactured according to the shape of a casting, a water-soluble ceramic core is placed in the wax injection mold, a wax material is injected into the wax injection mold after mold closing to form a wax mold, the wax mold is coated with gypsum slurry, and after the gypsum slurry is hardened, heating dewaxing and roasting are carried out to obtain a gypsum casting mold; and molten metal is poured into the gypsum casting mold by adopting a vacuum pouring and pressurizing solidification method to obtain a casting mold, and finally the casting mold is put into clear water to dissolve and remove the water-soluble ceramic core to obtain the needed complex thin-wall hollow aluminum alloy aviation part. According to the investment casting process of the complex thin-wall hollow aluminum alloy aviation part, the water-soluble ceramic core and the gypsum casting mold are combined, so that the problem that along and narrow inner cavity of the gypsum casting mold sinks is solved, and forming of looseness, cold shut and hot cracks in the casting is reduced through vacuum pouring and pressurizing solidification.

The invention relates to the technical field of screening and discloses a high-performance vane-inserted single-leaf casement screen door, comprising a door leaf and a door frame; the door leaf is provided with a door vane, the door frame is provided with a spring part used with the door vane, the spring part comprises a spring, a spring fastener and a spring seat, the inner wall of the spring seat is provided with spring plates abutted to each other, the spring plates are fixed to the inner wall of the spring seat through the spring fastener, a conductive elastic part is arranged in the spring seat and is arranged in a deformation direction where the door vane is inserted into the spring plates, the door leaf and the door frame are closed and locked in wedged manner, and contact between the spring plates and the door vane is ensured. The high-performance vane-inserted single-leaf casement screen door has high screening efficiency, good performance stability, good convenience of opening and closing, good operation stability and zero noise, the screening efficiency under 40-600 MHz may reach 100 dB and above; the high-performance vane-inserted single-leaf casement screen door is applicable to a screen room with MR (magnetic resonance) equipment having high field strength of 7 T and above.

The invention provides a casting method for fusing a metal gridding reinforcing body and a metal matrix. The casting method comprises the following steps of fixing reinforcing bodies (1) by using metal grids (2); mounting the reinforcing bodies (1) in corresponding positions of a foam mould; injecting pre-foamed foam beads in the foam mould to obtain a bright and clean foam mould with reinforcing body metal grids; accurately positioning the reinforcing bodies (1); uniformly coating foam mould clusters by using foam mold casting coatings; performing vibratory modeling on the foam mould clusters in a casting sand box; connecting a vacuumizing system to the casting sand box; pouring qualified smelted liquid metal on the foam mould; performing vacuumizing while pouring; and taking out the foam mould after cooling down the foam mold so as to obtain a casting on which the reinforcing bodies (1) are fused at accurate surface positions of the metal matrix. By the casting method, the reinforcing bodies (1) can be accurately positioned and uniformly distributed on the casting of the metal matrix; after the metal grids (2) and the metal matrix are fused, a transitional layer is formed; the reinforcing bodies (1) can be firmly fused with the metal matrix; the yield of products is improved; the cost is effectively reduced; and the quality of products is guaranteed.

The invention discloses a movable lateral smoke exhaust device in a tunnel. Funnel-shaped smoke exhaust ducts are arranged on the upper part of the side wall of the tunnel at equal intervals; double sliding rails are arranged at the bottoms of smoke inlets of the funnel-shaped smoke exhaust ducts and the intervals between every two funnel-shaped smoke exhaust ducts, and movable baffles are arranged on the double sliding rails in parallel by pulleys; drive motors are arranged on the movable baffles, through the cooperation of the pulleys and the sliding rails, the movable baffles arranged in parallel form a shielding structure at the smoke inlets, and smoke exhaust ports are formed at the unshielded smoke inlets. Smoke can be quickly and efficiently exhausted from the tunnel, human casualties and loss can be reduced, and the rescue efficiency is improved.

The invention belongs to the technical field of road engineering, and particularly relates to a cement pavement repairing method which comprises a bag body, an extension part and a connecting part. According to the method, a repairing bag is placed in the area needing to be grouted before grouting, then grouting is conducted in the repairing bag, filled grout is wrapped by the arranged repairing bag, leakage of the grout is prevented, then the grouting pressure is guaranteed, a settled panel can be lifted, and smooth pavement repairing is guaranteed; when grouting is not carried out, the repairing bag is in a folded state, the size is small, the repairing bag is more convenient to carry, meanwhile, the bag body of the repairing bag is folded into a cylindrical shape, the folded repairing bag is more attached to a drilled hole, and then the repairing bag can enter a damaged part of a roadbed through a hole in a pavement slab more easily; and by arranging the extension part, the repair bag is prevented from being blocked in the hole of the pavement slab, the repair bag can be better unfolded during grouting, and the repairing quality is improved.

The invention discloses an invisible supporting structure of a gypsum board ceiling, comprising a cross beam and a supporting leg, wherein the supporting leg is arranged at a contact part of the gypsum board ceiling and an indoor wall; the cross beam is inserted on the supporting leg to form a stable supporting structure of the gypsum board ceiling; and the cross beam, the supporting leg and the gypsum board ceiling are sprayed with a decoration color with the same color of the same brand, so as to achieve the aim of invisible decoration and fitment relative to vision to a certain extent under the condition of fixing and supporting the ceiling. The invisible supporting structure has an ingenious design and utilizes simple materials; the problems that the gypsum board ceiling is sunk or the edge is cracked after the gypsum board ceiling is hung for several days or several months can be solved; and the invisible supporting structure is convenient to implement and is convenient to apply.

The invention relates to a soil and comprehensive construction waste prepared automatic water-absorption automatic luminous type sponge road. The soil and comprehensive construction waste prepared automatic water-absorption automatic luminous type sponge road comprises a permeable surface layer, a permeable base layer and an isolation layer which are laid in sequence from top to bottom. The permeable base layer is a macromolecule permeable body layer. Accumulated water on the road surface is permeated into an original soil layer through the macromolecule permeable body layer, and water flow permeates directly into the soil base layer after permeating through the road surface layer to the porous road base layer for permeating to realize the water source in-situ mutual compensation of natural precipitation and air mutual compensation, while the rapid permeation of water, reducing water accumulation and protecting the environment are ensured, the quality problems of easy damage and poor durability of a road compact and closed structure system in the prior art are solved, moreover, road performance is higher, and the natural permeability function is achieved; while the environment is beautified, the recyclable use of resources is realized, and the overall strength and carrying capacity of the road are improved.

The invention relates to a stabilizing agent and a preparation method thereof, cereal milk prepared by using the stabilizing agent, and a preparation method of the cereal milk, and belongs to the technical field of food additives. The stabilizing agent comprises the following components in percentage by mass of 5%-20% of citrus fibers, 10%-30% of sodium carboxymethyl cellulose, 40%-80% of mono/di-glyceride fatty acid esters and 5%-10% of carrageenan. The cereal milk prepared by using the stabilizing agent comprises the following components in percentage by mass of 35%-90% of fresh milk, 0.5%-5% of cereal powder, 1%-6% of white granulated sugar, 0.15%-0.25% of a suspension emulsion stabilizer and the balance of water. According to the stabilizing agent and the preparation method thereof, the cereal milk and the preparation method thereof disclosed by the invention, the insoluble citrus fibers are used as a main suspending agent, and through the food additive, the hydrophilicity of the insoluble citrus fibers is increased, the network structure of the insoluble citrus fibers is stabilized, the suspension and the thickening property of a system are promoted, the situation that the cereal milk does not have the phenomena of precipitation, layering and bleeding in the 6-month quality guarantee period can be guaranteed, and a favorable stable state is reached.

The invention relates to a karst cave backfilling method and a tunnel construction method. The karst cave backfilling method comprises the following steps that a karst cave is backfilled with lower graded cave ballasts, and grouting reinforcement is conducted on the backfilled lower graded cave ballasts and collapsed bodies and accumulated bodies in the karst cave; first reinforcing plates are constructed on the backfilled lower graded cave ballasts, and concrete foundation structures are constructed on the first reinforcing plates; and the positions between the two sides of the concrete foundation structures and the cave wall of the karst cave are backfilled with inter-plate graded cave ballasts in a graded mode, grouting reinforcement is conducted on the inter-plate graded cave ballasts, second reinforcing plates are arranged between the adjacent inter-plate graded cave ballasts, one end of each second reinforcing plate is connected to the corresponding concrete foundation structure in a lap joint mode, and the other end of each second reinforcing plate supports the cave wall of the karst cave. The backfilling method is low in cost and good in economic efficiency.