17results 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 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 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 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 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 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.