50results about How to "Simple construction process" patented technology

This utility model discloses a detachable multi-faceted aluminum panel ceiling design structure, comprising: a frame layer, which includes fixed angle brackets, longitudinal angle steel, transverse supporting keel, clamps, and threaded rods; a Z-shaped keel, which has several waist-shaped holes arranged along its own length, with the bottom of the threaded rod passing through the waist-shaped holes and fixed by nuts, and the bottom of the Z-shaped keel having a fastening groove; and a rhomboid aluminum panel, with a first hook edge at one end and a second hook edge at the opposite end, the first hook edge of one rhomboid aluminum panel fastening into the fastening groove, and the second hook edge of an adjacent rhomboid aluminum panel fastening into the gap between the fastening groove and the first hook edge. Compared with the prior art, this utility model solves the problems of slow installation speed and inconvenient disassembly of existing aluminum panel ceiling structures.

This application discloses a sludge solidification agent, its preparation method, and its application, belonging to the field of sludge solidification technology. The sludge solidification agent comprises solid waste composite powder, a composite activator, and a microbial self-healing agent. The microbial self-healing agent is a chitosan-bentonite microcapsule loaded with Bacillus pasteurellii. The Bacillus pasteurellii is encapsulated within a protective layer composed of chitosan and bentonite using microencapsulation technology, thus maintaining dormancy and high activity during long-term storage. Through dual modification of the key components of the activator (hydrophobic microcapsules encapsulating water glass and surface passivated gypsum), the problems of pre-reaction and clumping failure due to moisture absorption in single-component powders are solved. The introduction of specific organic regulators (xanthan gum and casein) significantly improves the solidification effect on high-organic-matter sludge. Therefore, the sludge solidification agent provided in this application can achieve long-term microbial survival, dry-state stability of the activator, and efficient solidification of high-organic-matter sludge.

The invention relates to the technical field of civil engineering foundation pit supporting, in particular to a hoisting method for a large steel structure in semi-cover excavation construction of a subway station. Comprising an open excavation area and a cover excavation area; the steel structure is conveyed into the foundation pit from the open excavation area through a crane and conveyed to the cover excavation area from the interval area between the middle pile bodies; the position of the walking vehicle is adjusted, and the height of the carrier roller frame is adjusted through the lifting mechanism to correspond to the position of the conveyed steel structure; after the steel structure penetrates through a steel rope ring connected with the first electric hoist, the steel structure is conveyed to the small trailer, and the left end of the steel structure is located on the left side of the small trailer; the small trailer carries the steel structure to walk leftwards for a certain distance and is lifted by the steel rope ring connected with the electric hoist, and the small trailer and the steel structure jointly convey the steel structure to the steel enclosing purlin and are manually connected; after the steel structure in the area is installed, the walking beam is started to move forwards along the hanger rail, and the chain drives the walking vehicle to move to the next construction position at the same time. The method is simple in process, convenient to operate, high in construction efficiency and small in resource waste.

The application discloses a drilling cementing wall stabilizing agent and a preparation method and application process thereof, and belongs to the technical field of oil field chemistry, and particularly relates to a preparation of the drilling cementing wall stabilizing agent. The preparation method of the drilling cementing wall stabilizing agent can be that thermoplastic resin, a curing agent and inorganic powder are uniformly mixed and stirred at normal temperature and normal pressure according to proportions. The wall stabilizing agent material has the advantages of simple production process, safety, low material cost and convenience for large-scale production and application. The product can not only plug pores and reduce filtration loss, but also cement sand and mudstone strata and improve stratum pressure-bearing capacity, so that the purpose of stabilizing a well wall is achieved. The application further provides an application process of the drilling cementing wall stabilizing agent, which comprises a suitable drilling fluid system and an adding amount and construction process under different stratum porosities and different working conditions.

The utility model relates to a special-shaped broken line glass curtain wall installation structure which comprises a plurality of pieces of glass, a stand column and cross beams, each piece of glass is fixed with the stand column through an aluminum alloy accessory in the vertical direction, each cross beam is fixed with the glass through an aluminum alloy auxiliary frame and a pressing block, the cross beams are fixed with the stand column through stainless steel plug pins, and the stand column is obliquely arranged. The combined adapter is connected with the steel tube, and the steel tube is welded with the embedded part; and the combined adapter is connected with the steel tube through the stainless steel pin shaft, so that the mounting angle of the combined adapter is convenient to adjust, the mounting angle of the upright post is adjusted, and the glass curtain wall in a continuous sawtooth fold line shape is formed. The aluminum alloy accessories are connected with the stand columns through heat insulation strips. A cavity in the corner of the stand column is filled with polyurethane foam for heat insulation and sealed by double silicone sealants. The glass curtain wall in a continuous sawtooth fold line shape is installed, the problem that the cold bridge effect of the fold angle portion is obvious is solved, and the overall energy-saving performance of the curtain wall is guaranteed.

The invention discloses a PCCP pipe bell and spigot joint sealing system manufacturing method and a PCCP pipe bell and spigot joint sealing system manufactured through the PCCP pipe bell and spigot joint sealing system. During manufacturing, a joint is filled with an elastic blocking piece, the elastic blocking piece is divided into a first sub-joint and a second sub-joint, and the elastic blocking piece is arranged in the joint in an abutting mode through a locking mechanism; mortar is poured into the first sub-joint through a reserved first grouting opening, and the locking mechanism is removed after the mortar does not flow; a base layer is arranged on the upper end face of an upper opening of the second sub-joint, anticorrosive paint is applied to the base layer to form an anticorrosive coating, the anticorrosive coating and the base layer form a plugging structure and seal the second sub-joint, and sealant is poured into the second sub-joint through a reserved second grouting opening; the elastic barrier piece is basically non-sticky to mortar and the like; the method is suitable for construction in the low-temperature environment, the obtained sealing system can adapt to different stress interferences and different environmental factors, lasting sealing can be achieved, the construction technology can be simplified after the anti-corrosion coating is formed in a front-arranged mode, and the construction speed is high.

The application discloses a high-temperature curing ablation-resistant and heat-insulating two-component coating and a preparation process. The coating is composed of A component and B component. The A component comprises modified epoxy resin, liquid butyronitrile rubber, aluminum hydroxide powder, chromium trioxide, high-silica fiber powder, hollow glass microbead and toluene; the B component is a curing agent and a curing accelerator. In the preparation, the aluminum hydroxide powder, the chromium trioxide, the high-silica fiber powder and the hollow glass microbead are made into a filler dispersion liquid; then the epoxy resin and the liquid butyronitrile rubber are made into a resin-rubber mixture; then the filler dispersion liquid is slowly and uniformly added into the resin-rubber mixture under stirring, and the A component is obtained by soaking in a static magnetic field at room temperature and grinding; the curing agent and the curing accelerator are the B component. By optimizing the coating composition, the ablation resistance and the heat-insulating performance of the coating can be obviously improved by coating a single layer, the construction process is simplified, the coating thickness is reduced, and the high-temperature resistance of the coating is improved.

The invention belongs to the field of pipeline system valve manufacturing, and particularly relates to an overspeed cutoff valve. Comprising a valve body, a valve rod, a valve clack, a guide support, a speed limiting spring, a rubber sealing gasket, a gasket and a check spring. Within the rated flow speed, the stress of the valve clack is smaller than the rated thrust, the speed limiting spring keeps stable in form due to the pre-compression force, and the position of the valve clack keeps stable; when the liquid flow speed exceeds the rated flow speed and is gradually increased, the thrust borne by the valve clack is larger than the elastic force of the speed limiting spring, the valve clack moves in the water flow direction along with the increase of the thrust, meanwhile, the overflowing cross section between the valve clack and the valve body becomes smaller, the front-back pressure difference of the valve clack continues to be increased till the valve is completely closed, and finally the pipeline pressure completely acts on the valve clack. Sealed cutoff is realized; the method has the beneficial effects that construction is easy, the economic cost is low, the maintenance workload is small, pipe explosion loss is reduced, and the water cut-off range is narrowed; in an existing pipe network, an original check valve can be directly replaced, and the pipe burst protection effect can be achieved with small workload.

The utility model relates to a kind of light steel keel floor beam structure integrating shock insulation, moisture-proof and heat preservation, including the floor beam framework as load-bearing component, the floor beam framework is combined and assembled by short floor beam and long floor beam, rubber pad is fully paved on floor beam framework, cement-based moisture-proof board is paved on rubber pad, polyurethane insulation board is fully paved on the cement-based moisture-proof board.The utility model is made into floor beam framework by thin-walled light steel keel, and rubber pad, cement-based moisture-proof board and polyurethane insulation board are laid on it, form the floor beam structure integrating shock insulation, moisture-proof and heat preservation, modular design, factoryization blanking, light steel module load-bearing beam is assembled on site, greatly simplify construction technology, improve construction efficiency.

This invention relates to the field of corrosion protection, specifically to a wear-resistant and corrosion-resistant material and coating, their applications, and a wear-resistant and corrosion-resistant paint, its preparation method, and applications. The wear-resistant and corrosion-resistant material of this invention includes a wear-resistant and corrosion-resistant coating, the composition of which includes: epoxy resin, phenol-modified graphene, filler, nonionic dispersant, and curing agent; the epoxy resin includes phenolic epoxy resin and bisphenol A epoxy resin; the phenol-modified graphene includes graphene oxide and phenolic substances formed on the graphene oxide. The wear-resistant and corrosion-resistant paint of this invention has advantages such as good stability, good brushing performance, and simple construction process; the prepared coating exhibits excellent wear resistance, good acid / alkali resistance, strong adhesion, and good toughness.

The utility model provides a kind of assembled building sandwich thermal insulation wallboard structure, including reverse beating decorative surface layer and truss rib steel bar, lower steel mesh and thermal insulation board are equipped above the reverse beating decorative surface layer, upper steel mesh is equipped above the truss rib steel bar, cast-in-place concrete is poured on the lower steel mesh and upper steel mesh.This utility model uses truss rib steel bar to replace traditional connecting piece, with the dual role of promoting wallboard bearing capacity and connecting fixed thermal insulation wallboard, greatly improve the connection strength and overall bearing capacity of sandwich thermal insulation board after forming, overall structure is made into shape by cast-in-place concrete one-time, and it is completed in PC factory integration, ensure the structural integrity, simplify construction technology, improve production efficiency, lower steel mesh is connected by steel wire and reverse beating decorative surface layer multiple point, enhance the connection strength of reverse beating decorative layer and structure, ensure the structural reliability.

The utility model discloses a kind of inclination angle adjusting control devices, including two angle adjusting supports, two described angle adjusting supports are evenly including vertical pole, inclined pole, adjusting rod, the vertical pole is set along vertical direction and is fixedly installed on fixed part, the inclined pole one end is hinged with vertical pole, the other end is hinged with the one end of adjusting rod, the other end of the adjusting rod is hinged with vertical pole;The adjusting rod adopts two-section structure, including upper adjusting rod and lower adjusting rod, the opposite one end of the upper adjusting rod and lower adjusting rod can be position adjusted, and locking is carried out.The device covers the angle 30-50° commonly used in inclined pole construction, device each component can be disassembled, maintenance is convenient, angle control is accurate, easy to operate;Inclined pole and enclosure structure horizontal component connection place need not to be strengthened processing, save construction cost and construction period, and the quality of inclined pole construction is guaranteed.

The utility model discloses a bottom corner anti-seepage construction device based on an adjustable aluminum formwork supporting cushion, and belongs to the technical field of building construction, the bottom corner anti-seepage construction device comprises an aluminum formwork, two sets of supporting plates are arranged outside the aluminum formwork, multiple sets of vertical rods and multiple sets of transverse rods are arranged outside the aluminum formwork, and the multiple sets of vertical rods and the multiple sets of transverse rods are arranged in a crossed mode; adjustable supporting cushion assemblies are arranged in the two sets of supporting plates, each adjustable supporting cushion assembly comprises a supporting cushion base, and an adjusting screw rod is arranged at the top of each supporting cushion base; when the aluminum formwork is used, efficient application of the aluminum formwork in bottom corner anti-seepage construction is achieved, the construction technology is simplified, the construction efficiency is improved, the adjustable supporting cushion assemblies, the sealing mechanisms and the sealing rubber strips are matched, tight contact and reliable sealing of bottom corners are ensured, leakage is effectively prevented, and the service life of the aluminum formwork is prolonged. And the portability and the reusability of the aluminum template are fully utilized during use, so that the construction cost is reduced.

The application discloses a single-cone-sleeve locking threaded steel bar connecting device and method, which comprises two connected steel bars connected in head-to-tail mode, and a locking threaded clamp and a single-cone sleeve are sequentially arranged outside the two connected steel bars; the end of the two connected steel bars in contact with each other is provided with a thread; the single-cone sleeve is a tubular structure, the inner hole is a one-way conical inner hole corresponding to the locking threaded clamp, and the outer surface is a cylindrical surface; the locking threaded clamp is a tubular structure, the inner hole is a threaded inner tooth with a thread matched with the thread of the connected steel bar wire head, and the outer surface is a one-way conical outer surface; the application is suitable for the field of steel bar connection, a special knocking tool is used to knock the outer end surface of the single-cone sleeve, so that the single-cone sleeve and the locking threaded clamp are axially displaced, the locking threaded clamp inner tooth thread is tightly pressed into the steel bar wire head, the steel bar connection of the tight-fit thread is realized, and the connection of the two connected steel bars which cannot rotate can be realized.

The utility model provides a bridge deck manufacturing device which comprises a main machine frame, a shaping assembly is arranged below the main machine frame and used for shaping a reinforcing mesh, a vibrating table is arranged on one side of the shaping assembly, a movable hoisting assembly is arranged above the shaping assembly and the vibrating table and used for hoisting the reinforcing mesh, and the hoisting assembly is used for hoisting the reinforcing mesh. According to the bridge deck slab continuous manufacturing device, through cooperative operation of the shaping assembly, the hoisting assembly, the vibrating table, the transverse moving assembly and other parts, continuous manufacturing of bridge deck slabs is achieved, a traditional manufacturing mode is optimized, the production efficiency is greatly improved, the production cost is reduced, and the production efficiency is improved. The construction period is effectively shortened, and the problems that the production efficiency is extremely low and the construction period is seriously prolonged due to the fact that continuous operation cannot be achieved in traditional discontinuous bridge deck slab production and manufacturing are solved.

The present application relates to the technical field of building construction, in particular to a medical spliced antibacterial medical board construction method, comprising the following steps: A, wall surface quality acceptance; B, line marking; C, drilling and inserting screw sleeve; D, installing keel; E, installing fastener; F, installing antibacterial medical board; G, sealing glue; The construction method has the advantages of simple construction process, less construction procedure, high quality reliability and the like; The construction speed can be greatly improved by using the construction method, and the construction period is shortened; Further, the antibacterial medical board adopts a "dry hanging" fixing mode, which ensures the safety of the system; Compared with the phenolic resin board construction, the fireproof grade, wear resistance, formaldehyde content, moisture resistance, stain resistance, scratch resistance and other performances are significantly improved, so that the construction process is more environmentally friendly and safe.

The application discloses a kind of super-hydrophobic soil water-resisting layer and its construction method, belong to slope protection engineering technical field, the super-hydrophobic soil water-resisting layer is used for soft rock slope, by quality ratio is composed of basic component and functional component, basic component includes polymer curing agent 20 parts, guest soil 60 parts, straw fiber 5 parts;Functional component includes the total quality 0.5% of basic component starch graft acrylamide type microbial water-retaining agent, 2 parts nano SiO2, 0.3 parts KH-550 silane coupling agent, it can also be mixed with specific ratio grass seed.Its construction method includes four core steps of slope pretreatment, bottom curing, water-resisting layer laying, later maintenance, and drainage blind ditch strengthening measures are added for strong weathered soft rock slope.The super-hydrophobic soil water-resisting layer realizes the ecological restoration and long-acting water-resisting protection of soft rock slope, is suitable for the protection of various soft rock slopes in highway, railway, water conservancy and other engineering, has significant technical innovation and engineering application value.

The utility model discloses a permanent and temporary combined protection system for treating a cavity with collapsed top of a tunnel, and aims to solve the problems that the cavity with collapsed top is easy to cause safety accidents in tunnel construction, and the traditional treatment method has many limitations. The core of the protection system is a protection air bag, the protection air bag is made of rubber and can be customized according to the actual situation of the collapsed cavity, the collapsed cavity can be filled with the protection air bag in a conformal mode to form temporary supporting after inflation, and permanent supporting can be achieved after concrete is injected in the inflation state. The protective air bag is provided with an inflation inlet, an exhaust port and a tubular exhaust channel and is matched with the valve assembly, the air pressure monitoring device, the grouting pipe and the auxiliary fixing assembly to work cooperatively. During construction, a collapsed cavity is pre-reinforced and scanned to obtain data to manufacture the air bag, and the air bag is converted into permanent support through temporary support after installation. The system can effectively prevent rockfall, guarantees construction safety, adapts to complex collapsed cavities, is low in cost, convenient to construct and short in construction period, has remarkable advantages compared with a traditional method, and provides a more reliable solution for tunnel construction.

This invention relates to the field of reservoir stimulation technology, specifically a reservoir stimulation method based on fracture extension effect determination. The method comprises the following steps: S1, conducting pre-prime formation testing to determine the optimal flow rate for controlling hydraulic fracturing fractures; S2, injecting fracturing fluid into the formation at the optimal flow rate and recording the pressure when the system is stable; S3, conducting flow rate increase testing and recording the pressure when the system is stable; S4, calculating the discrimination coefficient based on the stable pressure obtained in steps S2 and S3, and determining the specific construction flow rate based on the discrimination coefficient. This invention provides a method for determining the degree of fracture expansion by assessing the fracture extension effect and monitoring pressure fluctuations through small-flow-rate stepped pumping, thus guiding on-site construction operations. The method is simple to implement and significantly reduces operating costs while ensuring precise control of fracture extension.

This invention relates to the field of concrete anti-corrosion materials technology, specifically to a high-strength and tough concrete anti-corrosion material layer for marine and industrial corrosive environments and its preparation method, comprising the following steps: S1. Pouring the base concrete, performing directional roughening / grooving treatment on the adhesion surface of the protective structure before final setting, cleaning the bonding surface after natural curing, applying a modified interface adhesive to the bonding surface, drilling holes and inserting shear anchor bars for fixation, thus obtaining an interface-reinforced matrix; S2. Preparing the modified functional layer material; S3. Pouring and vibrating the modified functional layer material, performing surface finishing treatment, covering with a moisture-retaining film after initial setting, and curing to obtain the concrete anti-corrosion material layer. This invention, through the synergistic effect of the modified functional layer, modified interface adhesive, and modified UHMWPE fibers, enables the protective layer to deform in tandem with the base concrete, eliminating the risk of debonding, delamination, and hollowing under wet-dry cycles, temperature stress, and structural stress, and can be applied on a large scale in port, bridge, chemical, and municipal engineering projects.

This invention provides a repair device and method for underwater concrete layers. The repair device includes: multiple anchor assemblies fastened to the underwater concrete layer; a first conduit, one end of which extends underwater and is located above the underwater concrete layer; and a second conduit, one end of which extends underwater and is also located above the underwater concrete layer, with the second conduit spaced apart from the first conduit in a first direction. The end of the first conduit extending underwater can be used to pour concrete onto the underwater concrete layer, and the end of the second conduit extending underwater can be used to apply an underwater protective agent to the concrete pouring area. Based on the technical solution of this invention, the anchor assemblies can anchor the subsequently poured underwater self-protecting concrete layer to the underwater concrete layer. This avoids the problems of high repair costs and unstable repair effects caused by altering the properties of the concrete itself to maintain bond strength in related technologies.

The invention provides a filling retaining wall containing honeycomb type reinforcing layers and a construction method of the filling retaining wall, and relates to the field of mine filling mining, the filling retaining wall comprises a first water filtering retaining wall and a second water filtering retaining wall which are vertically arranged in a filling access, and a first honeycomb type reinforcing layer and a second honeycomb type reinforcing layer are arranged between the first water filtering retaining wall and the second water filtering retaining wall; the first honeycomb type reinforcing layer and the second honeycomb type reinforcing layer are arranged in a staggered mode, and a plurality of drainage pipes are arranged on the second water filtering retaining wall. The overall strength of the filling body is improved, and the filling retaining wall construction process is simplified; the prefabricated hexagonal hollow retaining wall brick is simple in structure, low in cost and high in efficiency in the construction process, the honeycomb type reinforcing layer is formed through piling, the energy absorption mechanism of the honeycomb type structure is utilized, bearing capacity, construction efficiency, cost control and safety performance are considered, and efficient development of retaining wall construction and filling operation is achieved.

The present application belongs to the technical field of steel structure bridge construction, and particularly relates to a petal-shaped double-curved-surface special-shaped steel bridge tower and a manufacturing method thereof. The present application is designed to connect a plurality of tower columns to form a whole, which helps to enhance the stability of the petal-shaped double-curved-surface special-shaped steel bridge tower structure, effectively avoids tilting, deformation and other phenomena under the action of earthquakes, strong winds or traffic loads, and further improves the safety of the bridge. The middle parts of the adjacent tower columns are not connected to each other, which helps to manufacture and install in sections during the construction process, simplifies the construction process, effectively reduces the construction difficulty and improves the construction accuracy, and further improves the construction quality of the petal-shaped double-curved-surface special-shaped steel bridge tower. Compared with the manufacturing and construction of the linear steel bridge tower, the present application has the excellent characteristics of good forming effect, fast assembly speed, less investment in manpower and materials, low production cost, high economic benefit, and further improved production efficiency.

The invention discloses a one-way automatic salt elimination method for saline-alkali soil, and relates to the technical field of soil improvement, and the method comprises the following steps: S1, digging a to-be-improved saline-alkali soil to a predetermined depth to form a planting soil layer foundation pit; s2, a continuous waterproof salt-proof layer is laid at the bottom of the foundation pit; s3, in the process of laying the water-proof and salt-proof layer, a plurality of salt elimination channels are constructed on the water-proof and salt-proof layer, and the total opening area of the salt elimination channels accounts for 0.1%-5% of the total area of the water-proof and salt-proof layer; s4, soil is backfilled in the foundation pit where the waterproof salt-proof layer and the salt elimination channel are laid, and an improved planting soil layer is formed; s5, the improved plant soil layer is irrigated and leached, and salt in the improved plant soil layer is migrated to the position below the water-proof and salt-proof layer through the salt discharging channel along with water; wherein in a non-strong leaching state; the core path that salt rises along with capillary water can be basically cut off physically, the root problem of repeated salinization is solved, and the effect of lifelong benefit through one-time construction is basically achieved.

The application discloses a kind of breach plugging assembly type pile body truss modular assembly method, belong to major natural disaster prevention and public safety technical field.The method includes four steps of breach monitoring and situation assessment, emergency rescue resource preparation, assembly type pile body truss module cooperative plugging operation, later reinforcement.Through the steel pipe pile that is punched into in upstream and downstream of breach, form box type interception structure by quickly assembling the scaffold steel pipe truss module prefabricated on embankment and steel pipe pile, effectively reduce the flow velocity of breach mouth water;Tilt fill stone residue material between the interception structure and form occupation body, throw fill loose soil after closure and close gas, finally through the later reinforcement of building moon embankment and slurry pressure injection.The application is especially suitable for important embankment breach emergency rescue plugging with fast water flow velocity and deep water depth through pile body-truss modular cooperative design, with fast emergency rescue construction speed, strong safety, high one-time success rate, solid and reliable characteristics, suitable for emergency rescue under extreme hydrological conditions.

A drill bit capable of synchronously completing drilling and wall protection construction relates to the technical field of cast-in-place pile construction, and adopts the technical scheme that the drill bit comprises a drilling bucket and a reaming device, the drilling bucket is provided with a partition plate, an inner cavity of the drilling bucket is divided into a slurry cavity and a soil sampling cavity, a soil sampling opening is formed in the side wall of the soil sampling cavity, and the slurry cavity is provided with a slurry inlet and a slurry outlet extending to the soil sampling opening; the slurry cavity is provided with a rotating sleeve, the rotating sleeve is in transmission connection with a rotating shaft, and the rotating shaft is in sliding connection with the rotating sleeve; the rotating sleeve is further provided with a positioning sleeve, the rotating shaft is provided with an extending part in sliding connection with the positioning sleeve, the side wall of the positioning sleeve is further provided with a sliding groove, and the extending part is provided with a pin shaft sliding relative to the sliding groove; the reaming device comprises a wing plate rotationally connected with the positioning sleeve, a connecting rod is hinged between the wing plate and the pin shaft, and reaming teeth are arranged at the tail end of the wing plate. Drilling, reaming, soil taking and wall protecting are completed synchronously, the construction technology is simplified, the construction efficiency is improved, the cost is reduced, and the environmental protection risk is low.

The invention belongs to the technical field of soil reinforcement and ecological restoration, and particularly discloses a slope consolidation material based on carbon-iron synergistic microbial mineralization and an application method thereof, and the application method comprises the following steps: preparing a carbon-iron-containing consolidation base material, laying the carbon-iron-containing consolidation base material on the surface layer of a to-be-treated slope, and compacting; spraying a urease-producing microbial bacterial liquid to the slope surface on which the carbon-iron-containing consolidation base material is laid; after spraying the urease-producing microbial bacterial liquid for 1-4 hours, spraying a calcium-containing cementing liquid to the slope surface; and naturally curing for 7-28 days to form a microbial mineralization consolidation layer on the surface layer of the slope surface. The microbial mineralization consolidation layer obtained by the invention has the advantages of high compressive strength, strong wind erosion resistance, good water retention capacity, better ecological compatibility and the like, and is suitable for protection and ecological restoration of loess sandstorm slope surfaces and side slope surface layers.

The application belongs to the technical field of glass curtain wall construction, and discloses a rear embedded part and a curtain wall keel fixing construction process, two rear embedded parts are arranged on the upper and lower end faces of the building overhanging component correspondingly, and fastening connection is achieved through the through-wall bolts, the connection stability between the rear embedded part and the building overhanging component and the bearing capacity of the rear embedded part are effectively improved, the technical problem of insufficient anchoring of the rear embedded part and the building overhanging component is overcome, the installation stability of the curtain wall keel and the glass curtain wall is improved, and displacement or deformation of the rear embedded part caused by insufficient anchoring of the rear embedded part and the building overhanging component is avoided. Compared with fixing the rear embedded part by using expansion bolts or chemical anchors, the construction process effectively avoids damaging the structure and appearance of the building overhanging component, can meet the installation flexibility and on-site adjustment requirements of the rear embedded part and the curtain wall keel, and is convenient for later maintenance.

The utility model discloses a miniature steel pipe pile foundation for an earth-rock backfill side slope. The miniature steel pipe pile foundation is arranged above an earth-rock backfill area and is supported and fixed in a rock area; the miniature steel pipe pile foundation comprises miniature steel pipe piles and a structural foundation, the miniature steel pipe piles are vertically arranged side by side, and the tops of the miniature steel pipe piles in each group and the structural foundation formed through pouring are fixedly connected into a whole. Each group of miniature steel pipe piles is formed by casting steel pipes, reinforcing steel bar bundles and non-shrinkage mortar on site; wherein the steel bar bundle penetrates through the steel pipe and is consolidated through non-shrinkage mortar poured in the steel pipe on site, the bottom of the steel pipe and the bottom of the steel bar bundle extend into original rock to be fixed, and the top of the steel pipe and the top of the steel bar bundle are consolidated with a structural foundation formed through pouring; the structure foundation is a horizontal platform foundation formed through cast-in-place. Holes are formed in the wall of the steel pipe pile, the steel pipe pile and the periphery are fixedly connected to form a stable structure after grouting, the requirements for foundation bearing and upper load stress can be met, large-area excavation of a side slope is avoided, the applicability is high, and the construction efficiency is high.

The invention discloses a polymer cement waterproof coating capable of realizing one-time forming construction as well as a preparation method and application thereof, and relates to the technical field of waterproof coatings. The polymer cement waterproof coating comprises a liquid material component and a powder material component in a mass ratio of 1: (1.5-2.0), and the liquid material component comprises a polymer emulsion, water and a liquid additive; the powder component comprises cement, sand, active filler, anti-crack fiber and a powder additive. The polymer cement waterproof coating has excellent anti-cracking performance, the thickness required by construction can be achieved through one-time forming, too thick construction can be avoided, the construction process is simplified, and the construction time is saved; the mechanical property of the polymer cement waterproof coating can meet the national standard II-type requirement, and one-time forming without cracking can be achieved on an internal corner and a wavy base plane.