89 results about "Composite construction" patented technology

Embodiments relate to an enhanced method for building walls by primarily reducing the time for assembly. The design is for a molded multi-segment plastic composite construction block that interlocks horizontally, vertically and orthogonally with a clearance-fit, does not require mortar for structural integrity and is self-aligning. The blocks are molded out of natural-fiber reinforced thermoplastic composites with thermal expansion coefficient less than 0.0002 per degree Celsius and compression strength greater than 60 MPa.

The application provides a circular shear wall-spiral anchor composite structure foundation and a construction method, and belongs to the technical field of electric power engineering.The upper reinforced concrete slab and the lower reinforced concrete slab are respectively located at the upper part and the lower part of the circular shear wall foundation, the prestressed longitudinal tendon is located in the circular shear wall foundation and is connected with the flange plate of the steel pipe pole through the foundation bolt after penetrating through the upper reinforced concrete slab; the anchor rod of the spiral anchor is connected with the spiral anchor joint after penetrating through the lower reinforced concrete slab, the bottom of the prestressed longitudinal tendon is connected with the spiral anchor joint, and the spiral anchor joint is connected with the spiral anchor joint reinforcing bar embedded in the circular shear wall foundation; the application can effectively reduce the foundation burying depth, thereby reducing the amount of reinforced concrete, reducing the excavation depth, and reducing the construction cost, the labor cost and the transportation cost.

This utility model provides a double-sided composite fireproof and heat-insulating board, relating to the technical field of fireproof and heat-insulating boards. It includes a wall, a moisture-proof component, and a protective component. A board is provided on one side of the wall, and a pressure plate is provided on the side of the board away from the wall. A moisture-proof layer is fixedly connected to one side of the pressure plate, and a fireproof layer is fixedly connected to one side of the moisture-proof layer. This double-sided composite fireproof and heat-insulating board, through the inclusion of the moisture-proof component, provides the following benefits during use: the pressure plate is impact-resistant and windproof; the moisture-proof layer prevents water vapor from entering the interior of the insulation board; the fireproof layer provides fire resistance and heat insulation; the insulation layer is used for the insulation core material; the vacuum layer improves the insulation performance; and the adhesive layer facilitates board installation. This achieves the effect of improving the device's moisture-proof performance, avoiding the situation where high humidity in the air during the rainy season in southern regions, coupled with indoor dampness, allows moisture to easily enter the core material, leading to internal moisture absorption and increased thermal conductivity.

The utility model relates to the technical field of green constructional engineering piles, and discloses a green constructional engineering pile which comprises a shell assembly, reinforcing assemblies distributed in a matrix mode are installed in the shell assembly, buffering assemblies distributed in an annular mode are installed on the outer wall of the shell assembly, and connecting assemblies are connected to the two ends of the upper portion of the shell assembly in a clamped mode. The buffer assembly is arranged, vibration borne by the pile body can be effectively isolated, it is avoided that the vibration is transmitted to surrounding buildings or soil through the pile foundation, and interference to surrounding structures is reduced; the reinforcing assembly and the annular steel mesh are arranged, the steel mesh and pile body concrete can be combined to form a composite structure, the bending resistance, the shearing resistance and the tensile strength of the pile are effectively improved, the pile body is prevented from cracking or breaking under the load effect, the steel mesh can disperse external loads, stress concentration is avoided, the service life of the pile body is prolonged, and the annular steel mesh is made of galvanized steel materials. The fixing device can bear large loads, is suitable for scenes needing high safety, and meets the fixing requirements of complex shapes.

The application provides a composite structure ultrafiltration membrane assembly, which comprises a shell, a water outlet is arranged at the top of the shell, a liquid inlet is arranged at the bottom of the shell, the shell is divided into a filtering area and a gas floating area which are in communication from top to bottom by a first resin sealing layer, the filtering area is divided into a liquid production area and a membrane area from top to bottom by a second resin sealing layer, membrane filaments are arranged in the membrane area, one end of the membrane filaments is embedded in the second resin sealing layer, and the membrane filament holes are in communication with the liquid production area, a waste liquid outlet is arranged below the second resin sealing layer, the gas floating area is provided with fiber fillers, and a dissolved gas releaser is arranged at one end of the liquid inlet close to the inside of the shell. The ultrafiltration membrane assembly of the application efficiently combines the gas floating structure and the ultrafiltration structure, the series connection between the two parts can be directly realized in the membrane cavity, the liquid level balance, pressure increase and decrease and other control links of other process modes are reduced, and the ultrafiltration membrane assembly has the advantages of high water production efficiency and small energy consumption.

The present application relates to curtain wall construction technical field, specifically disclose a kind of photovoltaic roof glass curtain wall and daylighting roof glass curtain wall composite construction system, photovoltaic roof glass curtain wall and daylighting roof glass curtain wall composite construction system overall wave-like curved surface structure, including steel skeleton, curtain wall keel connected on steel skeleton, and hollow laminated glass panel and photovoltaic glass panel set on curtain wall keel, photovoltaic glass panel and hollow laminated glass panel are mutually spaced, steel skeleton overall is wave-like curved grid frame, steel skeleton includes horizontal steel beam and longitudinal steel beam, horizontal steel beam is the curved structure formed by the butt joint of multiple concave curves, longitudinal steel beam is linear structure, steel skeleton is equipped with decorative panel and the mounting bracket for fixing decorative panel, photovoltaic glass panel side edge and hollow laminated glass panel side edge are respectively sealed and fixed between aluminium profile subframe and aluminium alloy decorative strip, middle protrusion side.

The invention discloses high-viscosity modified asphalt and a preparation method thereof, and belongs to the technical field of asphalt materials, the high-viscosity modified asphalt comprises matrix asphalt, a tackifier, a styrene-butadiene-styrene block copolymer and a stabilizer, the mass ratio of the matrix asphalt to the tackifier to the styrene-butadiene-styrene block copolymer to the stabilizer is 100: (2-6): (2-6): (0.1-1); the tackifier comprises an epoxidized organic compound, a cross-linking agent and an accelerant, and the mass ratio of the epoxidized organic compound to the cross-linking agent to the accelerant is 100: (4-20): (0.5-3). According to the high-viscosity modified asphalt and the preparation method thereof disclosed by the invention, through composite construction of a thermally reversible network and a styrene-butadiene-styrene block copolymer (linear SBS) network, collaborative optimization among high-temperature performance, construction workability and low-temperature performance in a high-viscosity asphalt system is realized; the technical bottleneck that the three parts are difficult to consider in the traditional modification technology is broken through.

The application discloses a composite steel pipe single pile filled with recycled building materials and a construction method thereof, and belongs to the technical field of steel pipe piles. The composite steel pipe single pile comprises a steel pipe pile body, a cavity is arranged in the steel pipe pile body, the cavity is used for filling recycled building materials, a plurality of interface connecting mechanisms are arranged in the cavity, and a sealing mechanism is arranged on the top surface of the steel pipe pile body. By constructing a steel-filling core composite cross-section structure, the cross-section inertia moment and the overall bending stiffness are improved, the pile top displacement and bending deformation can be effectively reduced under the action of horizontal load, the single pile horizontal bearing capacity is improved by optimizing the cross-section stress system under the condition of controlling the steel consumption, and the structural material utilization efficiency is improved. The collaborative working capacity between the steel pipe and the filling body is enhanced through the interface connecting structure, the overall stress performance of the composite structure is improved, the air retention space in the steel pipe is reduced by filling the recycled building materials, the temperature and humidity fluctuations are alleviated, and the internal service environment is improved.

The utility model discloses a beam-column joint for steel reinforced concrete, which relates to the technical field of steel reinforced concrete and comprises a fixed column, connecting rods are respectively arranged at four corners of the fixed column, rotating blocks are respectively rotatably connected to the top ends of the connecting rods, and limiting grooves are respectively arranged at two ends of each rotating block. A guide rod is slidably connected to the interior of the limiting groove, and a beam shell is fixedly connected to the bottom of the guide rod. According to the beam-column joint for the steel reinforced concrete, the beam shells drive the rotating blocks to rotate, loads are transmitted to the guide rods of the two adjacent beam shells, pulling force or pushing force perpendicular to the surface of the fixed column is formed on the two adjacent beam shells, and due to the fact that the positions of the two adjacent beam shells are symmetrical relative to the fixed column, the pulling force or pushing force can be formed on the two adjacent beam shells. Therefore, tensile forces or thrust forces formed on the two adjacent beam shells are equal in magnitude and opposite in direction, so that the load is offset, and the effects of offsetting the load and protecting the stability of the fixing column are achieved.

This invention relates to the field of tunnel engineering construction technology and discloses a synergistic proactive reinforcement method for TBM excavation. The method includes acquiring geological information of the surrounding rock ahead of the excavation face, formulating a drilling plan based on the length of the pre-treatment area, and drilling using an onboard drilling rig or directional drilling rig. A waveguide is inserted into the borehole, and a microwave generator is activated to radiate the surrounding rock, inducing a network of interconnected fractures within the rock mass using thermal stress. After cleaning the borehole, a grouting pipe is inserted and sealed, and chemical grout is injected. The grout permeates along the fracture network and solidifies within a predetermined time, cementing the fractured rock mass to form an artificial and natural composite roof support structure. The TBM cutterhead then excavates under the protection of this composite structure. This invention utilizes the synergistic effect of microwave fracturing and grouting modification to solve the problems of difficult grouting in low-permeability surrounding rock and the lag of traditional support methods, thereby improving roof stability and excavation safety.

The invention relates to a ceiling element for a building ceiling. The ceiling element is designed as a timber-concrete composite. The ceiling element comprises a timber component having one or more formwork structures, a concrete component comprising a precast slab and a cast-in-place concrete topping, a lattice girder, a connector, and a sleeve. The connector is inserted into the sleeve. The concrete component is connected to the timber component via the connector and / or the formwork structure.

A bio-composite construction material for use as a substrate for a tile, a shingle, or a building panel. The bio-composite construction material may be formed into a rigid or semi-flexible member. A hemp fiber component is mixed with a binding agent to create the bio-composite construction material. The rigid member utilizes hemp hurd fibers mixed with lime or clay and water to form a tile structure. The semi-flexible member utilizes hemp primary bast fibers to form an elongated structure that is flexible. Hemp lignin or a resin is used as the binding agent and the primary bast fibers may be woven or alternately layered to create a substrate for a roof shingle.

The invention relates to the technical field of building material manufacturing, in particular to a flame-retardant soundproof wallboard and a preparation method thereof. The flame-retardant soundproof wallboard is of a multi-layer symmetrical composite structure and sequentially comprises an external paper decoration layer, an external facing layer, an external bonding layer, a core layer, an internal bonding layer, an internal facing layer and an internal paper decoration layer from outside to inside. The core layer is a calcium silicate honeycomb structure plate, and honeycomb units of the core layer are regular hexagon holes; the external facing layer and the internal facing layer are both high-density fiberboards; the external bonding layer and the internal bonding layer are made of polyurethane hot melt adhesive or epoxy resin structural adhesive; and both the external paper decorative layer and the internal paper decorative layer are melamine impregnated paper layers. Through cooperation of materials and structures of all layers, the finished flame-retardant sound-insulation wallboard gives consideration to light weight and structural stability, the problem that the flame-retardant performance and the sound-insulation performance of a wallboard made of a single material are unbalanced is effectively solved, and the flame-retardant sound-insulation wallboard adapts to multi-scene installation requirements, has practicability and economical efficiency and can be widely applied to building decoration and indoor partition.

This utility model relates to a formworkless cast-in-place STC steel-concrete composite bridge deck construction structure, including a side structure along the bridge length and an end structure along the bridge width. STC concrete is cast-in-place within the space enclosed by the end and side structures. The side structure includes a steel sheet, a filler layer, and sealant. The steel sheet is vertically welded to the top plate of the steel box girder. The filler layer is placed between the steel sheet and the perforated steel reinforcement of the bridge deck crash barrier on the outside of the steel sheet. Sealant is applied to the joint between the steel sheet and the top plate of the steel box girder. The end structure includes, from bottom to top, a leak-proof non-woven geotextile, an end baffle, and wooden joists placed on the top plate of the steel box girder, and also includes wire binding the end baffle and wooden joists together. This utility model enables rapid construction and ensures control over the end and side alignment and construction quality of the cast-in-place STC steel-concrete composite bridge deck, belonging to the field of bridge construction technology.

[Problem] To efficiently construct a spar-type floating body at a low cost, and to simultaneously solve issues such as concrete temperature cracks and bending cracks. [Solution] A spar-type floating body 4 with the lower half thereof being imparted as a steel-concrete composite structure part 4A in which concrete C is cast to a prescribed thickness on the inner surface of an outer-shell steel member 10 that covers the outer periphery, and the upper half thereof having an outer-shell steel member 12 that covers the outer periphery and being imparted as a steel structure part 4B made entirely of steel members. In the steel-concrete composite structure part 4A, reinforcing bars embedded in the concrete C are formed by arranging assembly reinforcing bars 35 spaced at an interval P along the longitudinal direction of the floating body, each assembly reinforcement 35 comprising: an inner circumferential bar 36A arranged parallel to the outer-shell steel member 10 in a state of maintaining a prescribed cover K with respect to the concrete outer surface; and a zigzag-shaped truss bar 36B arranged so as to alternately connect, over each prescribed length, the inner circumferential bar 36A and the outer-shell steel member 10.

The application discloses a controllable foaming sand fixing anti-blast blasthole rapid plugging device and application, the device comprises a self-expanding mixed material filling strip, which is composed of an elastic friction bag, sand and gravel packed in the bag and a release device buried in the sand and gravel; the release device comprises a tank body, an end cover, a pull ring and a release hole provided with a pre-crack PE film, and the tank body is filled with polyurethane-based self-expanding material. When applied, the device is immersed and placed in a blasthole, and after being triggered, the material penetrates into the sand and gravel and is foamed and solidified. Through the synergistic effect of the polyurethane / sand and gravel composite structure and the elastic bag, the balance between flexible anti-blast and rigid enhancement is realized; the modular design improves the filling efficiency to the level of 30 seconds; the sand and gravel aggregate reduces the polyurethane consumption, and in combination with a flame-retardant system, the generation of toxic gases is inhibited, and the green construction demand is met.

The invention discloses a thermal stable diaphragm material for a lithium ion battery and a preparation method of the thermal stable diaphragm material, and the material solves the key problems of easy thermal runaway, deformation shrinkage, channel blockage and the like of the existing diaphragm under extreme working conditions by synergistically constructing a three-dimensional composite structure with high thermal stability, mechanical flexibility and ion permeability. The flexible lithium battery diaphragm has good large-scale preparation capability and engineering application prospect, cement which is a traditional building material is introduced into a flexible lithium battery diaphragm system for the first time, and a multi-scale synergistic ion guide channel system is constructed by utilizing the high thermal stability and natural porosity of the cement and combining a polymer flexible phase and an in-situ foaming process. The strategy not only realizes the morphological stability and thermal protection capability of the material under a high-temperature condition, but also significantly improves the ion permeability and interface electrochemical suitability, and breaks through the problem of performance balance between thermal stress and flexibility of the existing polyolefin and inorganic coating diaphragm. Besides, the whole system adopts low-cost raw materials, the preparation process can be completed under normal-temperature and normal-pressure conditions, high-temperature sintering, electrospinning or vacuum treatment is not needed, and the industrial popularization potential is extremely high.

The invention discloses a concrete inertia base and a construction method thereof. The base comprises an equipment foundation arranged on a structural floor slab, a group of vibration isolators arranged on the equipment foundation at intervals, and a base main body supported by the vibration isolators. The base body is composed of a rectangular steel frame and a concrete layer poured on the rectangular steel frame, a connecting plate is arranged at the position, corresponding to the vibration isolator, of the steel frame, and split bolts are embedded in the concrete layer. The steel frames are connected through profile steel, L-shaped angle plates are arranged at the corners, and a stable structure is formed. The vibration isolator is of a unique spring-clamping plate composite energy dissipation structure. And a reinforcing steel net rack is additionally arranged at the bottom to enhance integrity. During construction, the equipment foundation is firstly constructed, then the vibration isolators are sequentially installed, the prefabricated steel frame is hoisted, and finally concrete is poured for forming. Through the steel frame-concrete composite structure, huge inertial mass is provided, the high-performance vibration isolator is combined, and the technical problems that a traditional vibration isolation system is insufficient in inertia, poor in integrity and poor in low-frequency vibration isolation effect are effectively solved.

This utility model discloses an aluminum-wood composite structure door, including an internal core panel. The core panel includes a first keel and a second keel. A first filler is provided on the inner side of the first and second keels, and a second filler is provided on the outer side of the first and second keels. A veneer laminate is provided on the outer side of the second filler. A multi-layer board is provided on the front and rear sides of the core panel, and a medium-density fiberboard is provided on the outer side of the multi-layer board. The side of the veneer laminate is sealed by a side edge sealing profile. This utility model improves the overall structural strength by setting an aluminum alloy keel inside the door panel, and setting the first filler, second filler, and veneer laminate on the inner and outer sides of the keel to form the core panel. At the same time, multi-layer boards and medium-density fiberboard are connected on the front and rear sides of the core panel through a composite process, and the side of the veneer laminate is sealed by a side edge sealing profile.

The application discloses a kind of based on steel wood composite structure's heat preservation and insulation building wall structure, it is related to building wall heat preservation structure field, it solves the problem that current heat preservation and insulation building wall structure is difficult to flexibly adjust structure size and the problem of insufficient heat insulation temperature control performance when using, including first frame, second frame, adjusting mechanism and heat preservation and insulation mechanism, the upper and lower sides of first frame are respectively fixedly connected with fixed frame, adjusting mechanism includes sliding rod, heat preservation and insulation mechanism includes conveying pipe, conveying pipe is serpentine bending shape, the application can adjust first frame and second frame relative sliding opening and closing by adjusting mechanism, to change the width of wall structure whole, adjusting operation is convenient and stable, the surface of wall after adjusting is relatively flat, it is convenient to install and handle later wallboard, by heat preservation and insulation mechanism, the communication state between multiple conveying pipes can be controlled and the conveying state of internal liquid is adjusted, auxiliary heat insulation and temperature control function are realized.

The invention discloses a machine pressure casting composite structure converter tapping hole brick and a preparation method thereof, and belongs to the field of refractory materials. The tapping hole brick is of a radial composite structure and comprises a mechanical pressing forming outer layer and a casting forming inner layer from outside to inside. The outer layer is made of a magnesia carbon material, 97 fused magnesite is used as aggregate, and the carbon content is 10-18%; the inner layer is made of a carbon-free aluminum magnesium material, 99 macrocrystalline fused magnesite is used as an aggregate, and the carbon content is less than or equal to 0.5%. The preparation method comprises the following steps: firstly, carrying out mechanical pressing and curing on an outer-layer green body, carrying out interface pretreatment, pouring an inner-layer material by taking the outer-layer green body as a mold, and carrying out curing and drying to obtain a finished product. Through innovative compounding of a material system and a forming process, the outer layer has excellent thermal shock resistance, and the inner layer has extremely high density, high-temperature strength and erosion resistance, so that the problems of carbon oxidation and molten steel recarburization are fundamentally avoided, the service life of the tapping hole is remarkably prolonged, and the tapping hole is particularly suitable for clean steel smelting.

The invention relates to the technical field of building skins, and provides a low-energy-consumption building skin structure with evaporative cooling and air interlayer cooperation and a method. The structure comprises a bearing wall, a porous material plate and an air control frame, the wind control frame is connected with the bearing wall, and the porous material plate is connected with the bearing wall through the conduction assembly. The air control frame comprises a frame body, an adjusting piece and a driving piece, and the adjusting piece is connected with the driving piece; the adjusting part can be opened or closed relative to the frame body under the driving of the driving part, and when the adjusting part is opened relative to the frame body, an air duct is formed between the porous material plate and the bearing wall. A composite structure is formed by the load bearing wall, the porous material plate and the air control frame containing the rotatable louver blades, dynamic heat insulation and passive energy saving of the building skin are achieved through an evaporative cooling and air interlayer ventilation cooperation mechanism, compared with a traditional enclosure structure, the energy consumption of an air conditioner can be reduced, meanwhile, the outer skin structure load is reduced, and the energy consumption is reduced. The technical problems that the ventilation quantity of an existing building skin structure cannot be adjusted, and a water storage structure increases the vertical load of a curtain wall can be solved.

This utility model provides a high-alumina refractory brick with impermeability, including a refractory brick body composed of a dense impermeable layer, a transition buffer layer, and a support layer. The transition buffer layer is disposed between the dense impermeable layer and the support layer. A flow-guiding groove is formed on the top surface of the dense impermeable layer, and a composite boron carbide coating is disposed on the inner wall of the flow-guiding groove. The high-alumina refractory brick with impermeability adopts a three-layer gradient composite structure: a dense impermeable layer on the surface, a transition buffer layer in the middle, and a high-strength support layer at the bottom, which improves its support performance. The surface layer is modified by composite modification of nano-silicon carbide powder and ultrafine zirconium oxide powder to form a dense surface, providing its impermeability. Moreover, by setting the flow-guiding groove, the flow of melt is guided and the seepage pressure is reduced. While maintaining the inherent advantages of high-alumina bricks, a multi-layer impermeability system from active flow guidance to passive defense is constructed, which solves the problem of delamination and spalling caused by seepage in traditional refractory bricks and significantly extends the service life of kilns.

The application discloses a fan foundation ground construction method, and relates to building construction technology, and comprises the following steps: foundation pit excavation, carrying out foundation pit excavation according to a fan foundation excavation drawing, cleaning the pit bottom after excavation, leveling and tamping the pit bottom; laying a geocell, laying the geocell on the excavated pit bottom; uniformly spreading material into the geocell, and the material is selected from gravel soil or soil at a construction site; adopting a static rolling and vibrating roller compaction combined mode to compact the material filled into the geocell. Installing a formwork on a surface of the geocell layer, injecting concrete into the geocell, using a vibrator to vibrate and compact the concrete, and carrying out smoothing, polishing or other surface treatment operations. The geocell product is transported to the site, the construction period is short, the foundation treatment quality is controllable, and the composite structure layer formed by combining the geocell layer and the plain concrete layer can improve the service life of the overall structure.

Natural fiber composite construction materials including boards, siding, railroad ties, standing seam roofing panels, roofing panels that support solar-electric modules, and roofing panels that support vegetation are provided. In various embodiments, composite construction materials comprise about 50-60% kenaf fiber.

The invention discloses a straw composite silent wooden door and a preparation method thereof, and belongs to the technical field of wooden door manufacturing. The wood door sequentially comprises a straw core layer, a wood frame layer, a micro-foaming adhesive layer and a covering layer from inside to outside. Wherein the straw core layer is formed by compounding and curing straw or wheat straw and an improved magnesium oxychloride inorganic adhesive, and the curing degree is 65-70%; the wooden frame layer is formed by splicing quadrilateral or equihexagonal unit blocks processed by small-diameter Chinese fir or poplar; and the covering layer is a medium-density fiberboard and a facing material or a facing plywood. The improved magnesium oxychloride adhesive is prepared from light calcined magnesia, anhydrous magnesium chloride, deionized water, phosphoric acid, nano silicon dioxide and highland barley straw ash according to a specific ratio. The preparation method comprises the three steps of straw core layer preparation, composite door core plate preparation and finished product composite door preparation. The formaldehyde-free improved magnesium oxychloride adhesive is adopted, the formaldehyde release amount is smaller than or equal to 0.1 mg / L, and the straw utilization rate reaches 90% or above; through the synergistic effect of the porous structure of the straw core layer and the micro-foaming adhesive layer, the sound insulation amount is larger than or equal to 35 dB and is increased by 40% or above compared with a traditional wooden door; due to the wood frame and straw core layer composite structure, the static bending intensity of the core plate is larger than or equal to 18 MPa, and the internal bonding strength is larger than or equal to 0.8 MPa; the production cost is reduced by 30%-40% compared with that of a solid wood door, and the composite material can be widely applied to the fields of indoor silence doors and environment-friendly home building materials.

The utility model discloses a waterproof moistureproof composite structure suitable for underground engineering, which comprises a first waterproof layer, an emergency impermeable layer and a second waterproof layer which are sequentially arranged from the bottom layer to the top layer, the first waterproof layer comprises a substrate layer, a moistureproof vapor-proof layer and an impermeable mortar layer, the substrate layer is an asphalt-based moistureproof layer, and the second waterproof layer is a waterproof layer. The moisture-proof vapor-proof layer is arranged between the base layer and the impermeable mortar layer, and the asphalt-based moisture-proof layer provides a moisture-proof effect for the foundation; the emergency anti-permeation layer is used for providing a standby waterproof barrier when the first waterproof layer fails due to aging, cracks or external pressure, the emergency anti-permeation layer comprises a hydrothermal reaction layer and a filling layer, the second waterproof layer comprises a mask mortar layer and a waterproof facing layer, and the mask mortar layer is laid on the supporting layer. Through the innovative design of the hydrothermal reaction layer, the heat conduction columns, the shape memory metal contact pins and the like, when the first waterproof layer fails, the repair process can be automatically triggered, and a standby waterproof barrier is formed in time.

This invention discloses a construction method for a water storage tank, comprising: S1, excavating a foundation pit; S2, setting up a bottom trench; S2a, laying a bottom impermeable layer; S3, arranging prefabricated assembly support modules and assembling them into an internal support body; S3a, laying a top impermeable layer and connecting it with the bottom impermeable layer to cover the internal support body; S4, sealing the top slab, so that the bottom trench and the top slab enclose the internal support body, and the support modules support the top slab. This method combines prefabricated modules with a cast-in-place top slab to form a composite construction system: the modules are assembled into a support body, which serves as a non-removable support, eliminating the need for full-scale scaffolding erection and dismantling, and also as a permanent structure that shares the load with the top slab; the impermeable layer covers and forms a sealed water storage space. This method combines the convenience of PP modules with the load-bearing capacity of concrete, and has significant advantages in construction speed, structural stress, safety, and cost.

The utility model provides a lining structure of a rotary kiln, particularly relates to the technical field of smelting equipment, and aims to solve the technical problem that the driving load of the rotary kiln is high due to the fact that an existing lining of the rotary kiln is made of two layers of refractory bricks and is heavy. The kiln comprises a kiln head, a first high-temperature lining area, a material blocking ring, a second high-temperature lining area, a low-temperature lining area and a kiln tail necking opening which are sequentially spliced from left to right, each of the first high-temperature lining area and the second high-temperature lining area is a single-layer cylinder formed by splicing a plurality of composite structure bricks; the low-temperature lining area is a cylinder formed by splicing a plurality of single-layer bricks made of single materials. The single-layer composite structure bricks are adopted in the high-temperature area to replace two-layer single-material bricks adopted in the prior art, and compared with the two-layer single-material bricks, the thickness of the single-layer composite structure bricks is obviously reduced, so that the internal space of the rotary kiln is increased, the weight is reduced, the storage amount of materials in the kiln is effectively increased, and the production cost is reduced. The driving load of the rotary kiln is reduced; and the productivity is improved.

The application discloses a self-closing fireproof lifesaving cabin and belongs to the field of building safety protection. In view of the problems of difficulty in escaping and rescuing in high-rise building fire, the application provides a closed refuge device integrating passive heat insulation, active temperature control and life maintenance. A five-layer composite cabin body is adopted to realize efficient passive heat insulation; a pure mechanical metal knife edge plastic deformation sealing system is designed to ensure that the cabin is completely isolated from the outside under high temperature; a "refrigerating machine + phase change heat storage plate" combination is innovatively adopted to convert personnel metabolic heat into phase change material storage, so that the temperature rise problem of the closed space is solved; a life maintenance system integrating oxygen detection compensation and air filtration and an external high-brightness position indication system are integrated. The application realizes that personnel can take refuge in place in fire and is completely isolated from the outside, and the life is maintained for at least 24 hours by relying on the internal system, so that a fundamental solution is provided for personnel survival and rescue in high-rise building fire.