25results about How to "Strong construction adaptability" patented technology

The invention discloses a soft rock large deformation control method and a rapid support system suitable for TBM tunnel construction method characteristics, the method is implemented based on an anchoring support system composed of a short anchoring support system and a long anchoring support system, and the method is suitable for an open TBM construction scene: in a TBM tunneling process, before a shield is exposed, the shield is not exposed, and the long anchoring support system is not exposed; a short anchoring support system of a full-length anchoring anchor rod structure is timely arranged in the radial direction of the 180-degree area of the upper half ring of the tunnel section through a cutter head edge cutter hole, and the short anchoring support system and a shield cooperate to form an initial deformation control system; after the shield is exposed, according to the deformation degree of the surrounding rock, full-length anchoring anchor rods or pre-stressed anchor cables are adopted in a graded mode, long anchoring supporting systems are arranged at intervals with the short anchoring supporting systems in a spiral mode, then the long anchoring supporting systems are cooperatively borne with steel arches, reinforcing meshes and sprayed concrete, and the long anchoring supporting systems are matched with 70m system sprayed concrete and 1000m secondary lining construction behind a tunnel face. According to the method, the displacement around the hole is effectively controlled, the TBM is prevented from being stuck, and the construction safety and efficiency of the open-type TBM in the soft rock large-deformation geology are improved.

The utility model discloses a wire and cable pay-off rack with elevating mechanism, including the support component of fixedly to ground, the rotary arm of hinged in support component top, linear telescopic power mechanism, control structure, rotary arm positioning structure and wire part. Rotary arm and support component hinge place are equipped as first hinged point, the power part end of linear telescopic power mechanism is hinged with support component, and its telescopic department outer end is hinged with rotary arm, control structure controls linear telescopic power mechanism telescopic, one end of rotary arm positioning structure is connected with rotary arm, and the other end is detachably connected with support component, and rotary arm positioning structure has hinged structure. The utility model discloses wire and cable pay-off rack height flexible adjustable: through the rotary arm rotation of air cylinder drive around hinged point, combines the safety control of air path switch valve, can realize the lift of rotary arm, adapts the demand of different construction scene, and promotes construction adaptability.

The application discloses a kind of special fluorosilicone modified acrylic coatings of anti-fouling and anti-aging unique framework and a preparation method thereof, for the defects of traditional fluorosilicone modified acrylic coatings, such as single molecular framework, difficult to consider anti-fouling and anti-aging performance, poor synergistic effect, etc., by designing the unique three-dimensional molecular framework of "acrylic main chain-fluorosilicone branch-crosslinking framework", optimizing the formula, and using efficient controllable polymerization process, the special fluorosilicone modified acrylic coatings of anti-fouling and anti-aging unique framework is prepared.The formula includes 48-68 parts of unique framework fluorosilicone modified acrylic copolymer, 19-29 parts of anti-fouling and anti-aging pigment and filler and other environmentally friendly components, realizes the synergistic effect of fluorosilicone and the double improvement of anti-fouling and anti-aging, has excellent performance such as surface energy ≤26 mN / m, VOC ≤40 g / L, artificial accelerated aging ≥2000 h, outdoor service life ≥20 years, is convenient to operate and controllable in cost, is suitable for high-end outdoor special coating scenes such as building exterior wall and high-end venue, and can widely replace traditional outdoor coatings.

This application relates to a multi-fan combined support system. The multi-fan combined support system includes: a support frame, fans, and a protective canopy. The support frame has a row of placement slots, through which the fans are placed. A protective canopy is installed on the support frame above the fans. The support frame includes diagonal braces, I-beam columns, longitudinal channel steel at the column top, longitudinal channel steel, welded triangular channel steel, and channel steel crossbars. The support frame is composed of six I-beam columns arranged in two rows, with each row of I-beam columns connected in pairs by channel steel crossbars. Adjacent I-beam columns in each row are cross-supported by two diagonal braces. The solution provided by this application ensures that the fans will not shift or fall off when subjected to impact or vibration, ensuring stable operation of the fans. Furthermore, the materials are readily available, on-site welding is simple, improving construction adaptability. The protective canopy can also be directly installed, effectively protecting the fans.

The invention relates to the technical field of mortar preparation, in particular to high-performance waterproof dry-mixed mortar and a preparation method thereof. The high-performance waterproof dry-mixed mortar is prepared from the following raw materials in parts by weight: 300 to 400 parts of cement, 550 to 650 parts of quartz sand, 1.5 to 3.0 parts of silane waterproof agent, 15 to 25 parts of hydrophobic redispersible latex powder, 0.2 to 0.5 part of water-retaining thickening agent, 0.5 to 1.5 parts of polycarboxylic acid water reducing agent, 3 to 8 parts of thixotropic lubricant, 0.3 to 1 part of coagulation accelerator, 20 to 50 parts of superfine filler and 0.5 to 1.5 parts of polypropylene fiber. The technical problem of non-uniform dispersion of trace components in high-performance mortar production is solved through the process combination of premixing the water-retaining thickening agent, the polycarboxylate superplasticizer, the thixotropic lubricant and the coagulant and then performing staged low-speed main mixing on the mixture and other raw materials; the effects of excellent waterproof and anti-seepage performance, excellent mechanical property and bonding strength, excellent crack resistance and high durability are achieved.

The invention relates to the technical field of water-based coatings, and discloses a water-based anticorrosive coating as well as a preparation method and application thereof. The water-based anti-corrosion coating comprises the following components in parts by mass: water-based color paste: 1-20 parts of water-based resin; 0.1 to 1.0 part of a neutralizing agent; 0.1 to 0.5 part of a thixotropic agent; 0.1 to 1 part of a flash rust inhibitor; 1-30 parts of a pigment; 1 to 20 parts of water; water-based varnish: 15 to 40 parts of water-based resin; 0.1 to 1.0 part of a neutralizing agent; 0.1 to 1 part of a drier; and 1-20 parts of water. The water-based anti-corrosion coating provided by the invention is a water-based single-component primer-topcoat quick-drying anti-corrosion coating, the water-based dispersion resin with low solvent content is selected, and the coating is low in VOC content, safe and environment-friendly; the viscosity is low, and the operability of production and construction is high; the thixotropic value of a coating system is greater than 3.2, and the one-time coating sagging film thickness of a wet film can reach 250-300 [mu] m.

The utility model belongs to the technical field of fabricated building engineering, concretely relates to a kind of inner rib structure fire-resistant cage mould assembly monolithic vertical component, including the cage mould membrane shell prefabricated by fine stone concrete, the cage mould membrane shell is cavity structure, as permanent formwork and inner cavity post-cast concrete form integral force system;The inner side wall of the cage mould membrane shell is equipped with inner rib structure;The side edge splicing contact surface of the cage mould membrane shell is equipped with depth embossed concave-convex structure;The wall thickness middle part of the cage mould membrane shell is embedded with continuous steel mesh;Modified tensile fibre and hot melt fire-resistant fibre are uniformly doped in the prefabricated substrate of the cage mould membrane shell.The utility model realizes the integration of prefabricated cage mould and post-cast concrete, strengthens the connection integrity, eliminates concrete high-temperature burst hidden danger, improves the anti-cracking and anti-bending ability of component full life cycle, can be widely applied to the vertical load-bearing structure of various buildings, realizes the stress performance equivalent to cast-in-place of assembly monolithic structure.

The application discloses a lithium residue-based anti-salt corrosion concrete pole and a preparation method thereof. The pole is made of lithium residue-based polymer concrete, and components of the pole include 20-30 parts of dealkalized red mud, 15-25 parts of activated lithium residue, 10-15 parts of slag, 5-8 parts of silica ash, 6-10 parts of magnesium phosphate cement, 12-18 parts of composite alkali activator, 25-35 parts of machine-made sand, 40-50 parts of gravel, 0.4-0.6 parts of polycarboxylic acid water reducer, 0.8-1.2 parts of composite fiber, 2-3 parts of anti-salt corrosion rust inhibitor and 25-35 parts of water. The pole is coated with a silicone-fluorosilicon resin hydrophobic coating on the outer surface. The anti-salt corrosion rust inhibitor is compounded by nano-silicon dioxide, hydrotalcite precursor and triphosphonic acid-based rust inhibitor. The concrete pole is obtained through the processes of pretreatment of red mud and lithium residue, raw material mixing, centrifugal molding, curing and surface treatment, and has excellent anti-salt corrosion performance and mechanical properties.

The application discloses a special waterproofing admixture for concrete, a preparation method and application, and belongs to the technical field of concrete admixtures. In order to solve the problem of performance attenuation of the existing waterproofing admixture in extreme environments, the admixture comprises a perfluorosilane modified graphene-hexagonal boron nitride composite phase, a hydrothermal in-situ composite nano-hydroxyapatite-titanium dioxide phase, a hydroxyl-terminated polyether ether ketone water reducing agent, a benzene type polyimide-bisphenol A epoxy resin crosslinking agent and an additive; wherein the weight ratio of graphene to hexagonal boron nitride is (3-5):(6-8), and the composite phase is grafted with 8%-12% of the total mass of the composite phase of perfluorooctyltriethoxysilane; the hydrothermal phase has a particle size of 25-45 nm and contains 5%-8% of nano-titanium dioxide. The admixture can be used for deep-sea engineering, cold region tunnel, high-salinity soil building and nuclear power station waterproofing engineering.

The invention discloses an assembly type edge component and a connecting method, and belongs to the technical field of assembly type building systems. The problems that in the current building construction process, a cast-in-place edge component is low in construction efficiency, the project advancing progress is affected, and the building construction cost is increased are solved. The assembly type edge component comprises an assembly type edge component body and beam bars, the beam bars are connected to the side wall of the assembly type edge component body, the assembly type edge component body comprises vertical steel bars, edge component stirrups and a concrete entity, the vertical steel bars and the edge component stirrups are arranged in the concrete entity, and the vertical steel bars are connected with the edge component stirrups. According to the fabricated edge component and the connecting method, the components are connected simply and conveniently, and the construction period is shortened.

The invention relates to a profile control agent for a high-salinity-resistant deep oil reservoir and a preparation method of the profile control agent, and belongs to the technical field of oil exploitation. The profile control agent is composed of a pretreatment slug, a front slug I, an oil displacement slug II and a reinforced slug III according to a specific volume ratio, each slug adopts adaptive raw materials such as solid particles with composite particle sizes and a composite protective agent, and functional synergy is realized by optimizing a formula and a preparation process. The plugging agent can tolerate the degree of mineralization below 300000mg / L and the temperature of 40-120 DEG C, can realize deep accurate plugging and efficient oil displacement of an oil reservoir, and remarkably improves the plugging rate and the scouring-resistant stability. The profile control agent has the advantages of easily available raw materials, simple preparation and strong construction adaptability, and can effectively improve the oil reservoir development effect in the extreme environment and increase the recovery rate of remaining oil.

The utility model relates to the technical field of drilling equipment, in particular to a lifting platform type drilling machine which comprises a walking chassis, a lifting platform mechanism, a drilling device and a transverse movement driving mechanism. The lifting platform mechanism is arranged on the walking chassis and can ascend and descend in the vertical direction. The drilling device is arranged on the lifting platform mechanism in a sliding mode and used for drilling construction. The transverse movement driving mechanism is arranged between the drilling device and the lifting platform mechanism and can drive the drilling device to slide along the lifting platform mechanism. The lifting platform mechanism can lift the drilling device to any height so as to adapt to drilling operation at different heights, the transverse moving mechanism can drive the drilling device to move in the width direction of the walking chassis so as to adapt to drilling operation at different positions in the horizontal direction, large-range drilling construction in the height direction is met, and the drilling efficiency is improved. The benching method construction adaptability is improved, and the posture adjusting action of the drilling device is reduced.

The utility model belongs to bridge construction field, concretely relates to a kind of connecting structure of bridge precast bent cap and precast column. Including: grouting bellows embedded in bent cap, the grouting bellows is penetrated through bent cap;Grouting sleeve embedded in column, the grouting sleeve upper end is flush with column top, lower end is connected column main reinforcement;Steel bar inserted into the grouting bellows and grouting sleeve, the steel bar diameter is same with column main reinforcement;Grouting material filled in the grouting bellows and grouting sleeve;Supporting plate is arranged in column top, the supporting plate has vertical intensity of bearing bridge load, and with bent cap contact surface friction coefficient is low;Grouting material fills the gap between bent cap and column.Compared with prior art, bent cap is in situ without needing to be vertically dropped above column, so that the segmentation and connecting joint of precast bent cap are more diversified, and the design freedom of bent cap is improved.

The utility model relates to the technical field of constructional engineering, in particular to a split mounting type safety crawling ladder system for a concrete structure deep foundation pit. Comprising a plurality of ladder stand sections capable of being assembled, a base flange and at least one safety platform. The base flanges are fixed on the foundation pit wall at intervals; the upper end and the lower end of each crawling ladder section are fixed to a base flange, every two adjacent crawling ladder sections are rapidly assembled through an axial connector, and when the adjacent sections are axially aligned, automatic locking is achieved; detachable protective rings are arranged on the crawling ladder sections at intervals, and elastic buffer layers are embedded in the inner sides of the detachable protective rings; the safety platform is fixed to the foundation pit wall, and the upper portion and the lower portion of the safety platform are connected with the crawling ladder sections. The base flange is matched with the axial connector, so that the crawling ladder sections can be quickly assembled and disassembled, the length of the crawling ladder can be dynamically adjusted according to the depth of a foundation pit, and the construction adaptability and the repeated utilization rate of components are remarkably improved.

The invention relates to the technical field of soft soil treatment, and discloses a curing agent for coastal soft soil and a manufacturing process of the curing agent. The process comprises the following steps: carrying out coarse and fine grading pretreatment on the furnace bottom slag, carrying out acid activation treatment on the zeolite powder, carrying out surface modification treatment on the basalt fiber, preparing a component A delayed coagulation curing agent, preparing a component B coagulation accelerating curing agent, and compounding the two components in proportion for use. The curing speed can be adjusted within 15-90 minutes by compounding the component A and the component B according to different mass proportions, and a double-phase structure of a rigid framework and a gelling matrix is formed by the surface modified basalt fibers and graded furnace bottom slag coarse particles. The rheological property of slurry is adjusted through selective ion adsorption of acid activated zeolite powder and molecular chain extension of hydroxypropyl methyl cellulose, and the technical problems that a coastal soft soil curing agent is large in brittleness, poor in construction adaptability, non-adjustable in curing speed and low in synergistic utilization rate of various solid wastes are solved.

The invention discloses a manufacturing method of flexible water-resistant mortar. The manufacturing method comprises the following steps: preparing raw materials, namely weighing cement, quartz sand with different granularities, filler, cellulose ether, nano silicon dioxide, polymer emulsion and auxiliaries; dry mixing and stirring: mixing and stirring the cement, the quartz sand, the filler, the cellulose ether and the nano silicon dioxide; adding water for premixing: adding a proper amount of water into the mixed dry material and uniformly stirring; emulsion addition: adding a polymer emulsion, a coalescing agent and a water repellent, and continuously stirring; adding auxiliaries: adding a water reducing agent, a defoaming agent and a coloring agent, and increasing the stirring speed until the slurry is uniform; according to the present invention, the nano-silica and the water repellent are added to enhance the compactness and the hydrophobicity of the mortar so as to improve the impermeability and the durability of the product, and meanwhile, the ratio of the polymer emulsion to the filler is adjusted, and the segmented stirring process is combined, such that the flexibility of the product is significantly improved, and the cracking phenomenon can be effectively prevented.

The utility model relates to a kind of pulley support mechanism for shield machine cable, involve cable stay construction field.It includes: pulley: including support camber, support camber top is used to place cable;Support component: pulley rotation connection the support component, for providing the rolling friction of pulley to cable when cable pulling;External component: suspension installation is in cable bridge frame.The utility model provides a kind of pulley support mechanism with simple structure, easy to install, can effectively reduce the frictional resistance when cable moves, and ensure its stable operation in narrow construction environment, to reduce artificial cost and improve laying efficiency.

The invention provides a high-performance environment-friendly vertical plane single-component polyurethane waterproof coating and a preparation method of the high-performance environment-friendly vertical plane single-component polyurethane waterproof coating. The polyurethane waterproof coating is prepared from the following raw materials in parts by weight: 22 to 28 parts of modified castor oil polyol prepolymer, 4.5 to 7.5 parts of nano silicon-amine complexing agent, 4.8 to 5.8 parts of diphenylmethane diisocyanate, 3.2 to 4.8 parts of tri-n-butyl citrate, 1.0 to 1.8 parts of nano zinc oxide dispersion liquid, 18 to 24 parts of ground calcium carbonate, 5 to 8 parts of wollastonite fiber, 3 to 5 parts of hydroxyl-terminated polybutadiene, 0.04 to 0.06 part of organic bismuth catalyst and 0.2 to 0.4 part of polysiloxane defoaming agent. 8 to 12 parts of propylene glycol methyl ether acetate, 0.05 to 0.15 part of a titanate coupling agent and 0.1 to 0.2 part of an antioxidant. Through the synergistic effect of all the components, the waterproof coating has good mechanical properties, anti-sagging performance, aging resistance and low-temperature adaptability, and meanwhile the stability of the coating forming process and the final use reliability are guaranteed.

The application discloses a tunnel surface subsidence based step-by-step construction device and construction method. The application belongs to the technical field of tunnel construction. The device comprises a plurality of top support molds, a plurality of insertion point type insertion units are arranged between two adjacent top support molds, each top support mold and each insertion point type insertion unit are installed on an assembly beam, a driving type transmission mechanism for driving the top support mold to move along the length direction of the assembly beam is installed on the assembly beam, and a plurality of vertical hydraulic cylinders are installed on the lower end of the assembly beam along the length direction of the assembly beam. The method is to apply the above device to step-by-step reinforcement of the tunnel. The core design of active support, multi-point reinforcement and step-by-step advancement is adopted in the application, so that the whole process of surface subsidence in tunnel construction is realized, and fine control is achieved. The application has stability, high efficiency, safety and economy, and is especially suitable for tunnel construction under complex geological conditions such as karst, and can effectively guarantee the engineering quality and the safety of the surrounding environment.

This invention discloses a construction method for rapid positioning and installation of steel structure column caps, relating to the field of prefabricated building construction. The method utilizes a positioning assembly, pilot hole components, and a rebar connection assembly. The positioning assembly includes a positioning nut, a washer, and a strip steel plate. The strip steel plate has a hollow center for installing the pilot hole components, and the distance and extension height between different pilot hole components are adjustable. Four strip steel plates are arranged in pairs, with two plates overlapping the other two. Positioning nuts and washers are installed above and below the strip steel plates to securely connect the pilot hole components. A rebar connection assembly is installed at the lower end of each pilot hole component. Using this invention significantly saves manpower, material resources, and time costs, and offers advantages such as simple and quick installation and disassembly, standardized factory production, on-site assembly, good versatility, and strong construction adaptability.

The utility model belongs to the technical field of underground construction devices for oil-water wells in oil fields, and particularly relates to an underground high-pressure water jet unblocking and flowback device for oil-water wells in oil fields. Comprising an oil pipe, a plug valve, a sliding wellhead, a flowback device, a packer, a high-pressure water jet device and a circulating valve are installed on the oil pipe from top to bottom, a sleeve is installed below the sliding wellhead, the flowback device is provided with a formation liquid suction inlet, the formation liquid suction inlet is communicated with a nozzle through a formation liquid channel, and the nozzle is communicated with a negative pressure cavity. The negative pressure cavity is communicated with a diffusion cavity and a mixed liquid channel, the outer side of the high-pressure water jet device is rotationally connected with a rotary outer sleeve, a plurality of water outlet holes are formed in the high-pressure water jet device, and a plurality of eccentric water holes are obliquely formed in the rotary outer sleeve. According to the utility model, the unblocking and flowback processes are realized by one pipe column, the construction efficiency is high, the bearing pressure of the sleeve is small during flowback, the sleeve leakage is not caused, and the coverage and the unblocking range are large during unblocking construction.

The utility model provides a bridge pier and abutment concrete curing device, which relates to the technical field of concrete treatment and comprises a curing device cylinder body, and a front end cover is fixedly arranged at the front end of the curing device cylinder body. An output pipe is integrally arranged below the front side of the front end cover, and a discharging shape controller is fixedly arranged at the front end of the output pipe; a rear end cover is fixedly arranged at the rear end of the maintenance device cylinder body; a spiral propeller is rotationally arranged between the front end cover and the rear end cover, and the rear end of a rotating shaft of the spiral propeller penetrates out of the rear end cover; a bearing seat is fixedly arranged at the bottom of the maintenance device cylinder body, and a fixed grip is fixedly arranged on the rear side of the bottom of the bearing seat; the concrete filling device is convenient and efficient to operate, and rapid filling of concrete is achieved through the detachable installation design of the concrete tank and the cylinder body of the curing device in cooperation with an automatic discharging structure; due to the linkage design of the pressing handle and the spring reset mechanism, one-way propelling automatic circulation is formed in the concrete conveying process, manual operation steps are reduced, and the construction efficiency is improved.

The application discloses an assembled laminated floating slab damping system and a mounting method thereof, and aims to solve the problems of high rigidity, narrow damping frequency band, low construction efficiency, difficult maintenance and the like of the existing floating slab damping system; in the system, upper and lower prefabricated concrete slabs are bonded into a laminated floating slab through a composite slab, the laminated floating slab can provide high damping and a flexible interface, effectively dissipate vibration energy, and can jointly form a multistage damping system with an elastic pad plate to expand the damping effect; connecting pieces are overlapped on two laminated floating slabs, and connecting pad plates are arranged between the laminated floating slabs and the connecting pieces; the connecting pad plates are integrally formed with an elastic layer through a steel plate and vulcanization, and can additionally provide elastic connection and reduce stress concentration.

This invention relates to the field of marine coating technology and discloses a hydrolytic antifouling paint for Wuxi ship bottoms and its preparation method. The method includes the preparation of a modified acrylate resin prepolymer, microencapsulation of antifouling active components, synthesis of a hydrolytic self-polishing base material, formulation of the finished antifouling paint, and curing treatment of the antifouling paint. By using supercritical CO2 fluid to encapsulate and granulate dihydrocapsaicin, 4,5-dichloro-2-n-octyl-3-isothiazolinone, and a porous silica carrier, and by controlling the particle size and wall thickness of the microcapsules, a stable loading of the antifouling active components is ensured, achieving long-term release of the antifouling function and reducing the recoating requirement of the antifouling paint. By adding styrene-acrylate copolymer, zinc acrylate resin, and organobentonite to a mixed solvent of xylene and propylene glycol methyl ether acetate and stirring to dissolve, and by controlling the mass ratio of styrene to acrylate and the acid value of zinc acrylate resin, the hydrolytic stability of the base material is ensured.

The application relates to the technical field of waterproof materials, in particular to a PU water-based polyurethane weather-resistant waterproof material and a preparation method thereof, which contains the following raw materials in parts by weight: water-based polyurethane emulsion 60-85 parts, modified nano-silicon dioxide agent 3-10 parts, weather-resistant agent 2-8 parts, film-forming aid 2-6 parts, defoaming agent 0.3-1.5 parts, wet dispersing agent 0.5-2 parts, thickening agent 0.5-2 parts and water 5-15 parts. The mechanical property and water resistance of the waterproof material are remarkably improved by adding the modified nano-silicon dioxide agent; the surface of the nano-silicon dioxide is grafted and modified by a silane coupling agent KH-550, the dispersibility of the nano particles in the polyurethane matrix and the interface compatibility with the matrix are improved, the mechanical strength and crack resistance of the coating are further improved by taking carbon nanotubes as reinforcing fillers, and the hardness and wear resistance of the coating are improved by taking nano-aluminum oxide.