44results about How to "Safe and convenient construction" patented technology

The invention discloses an organosilicone weather-resistant brushed decorative coating, which is prepared by mixing the following raw materials in parts by weight: 20-50 parts of alpha, omega-dyhydroxyl polydimethylsiloxane I, 50-80 parts of alpha-omega dyhydroxyl polydimethylsiloxane II, 5-15 parts of fumed silica, 40-60 parts of aluminium hydroxide, 5-20 parts of wollastonite, 5-15 parts of glass fiber, 10-25 parts of rutile titanium dioxide, 15-30 parts of nano calcium carbonate, 5-15 parts of hydroxyl silicone oil, 5-20 parts of a pigment, 5-13 parts of a cross-linking reactant, 0.35-0.85 part of a coupling agent, 0.1-0.2 part of an antifoaming agent, 0.2-0.5 part of a wetting dispersant and 2.5-5 parts of a catalyst. The organosilicone weather-resistant brushed decorative coating has excellent weather resistance, is very high in adhesive force on a substrate and has excellent thixotropic property.

The invention provides a foundation pit supporting system and a construction method thereof. The foundation pit supporting system comprises a top rack, wherein the top rack is connected to a telescopic part I, the telescopic part I is arranged on the ground, the top rack is connected to a bottom rack, and a protecting plate is arranged outside the bottom rack. The construction method comprises thefollowing steps of leveling a site; mounting the telescopic part I, the top rack and the bottom rack; excavating earth, transferring the bottom rack down, and carrying out protecting plate supporting; paving a lining structure and lifting the bottom rack; lifting the bottom rack continuously for earthing and backfilling; removing the supporting system; carrying out backfilling and earthing to restore the ground surface. The foundation pit supporting system has the advantages that it is not needed to construct a temporary structure such as a fender post and an anchor cable, so that construction waste is reduced and pollution to a stratum is reduced; use of concrete is reduced; excavation and supporting are carried out synchronously, and a statically indeterminate steel structure system sinks simultaneously with an excavated interface, so that it is convenient to construct and safe and reliable; a recoverable steel structure system is used, the amortization expense can be lowered by large area popularization, the project investment is reduced, and the foundation pit supporting system has a good economical benefit.

The invention discloses a steel column strip substrate structure system. The steel column strip substrate structure system comprises a substrate and a vertical steel column located on the substrate, wherein a short joint bar is arranged on the substrate; a plurality of stiffening rib fixing boards which are jointed and fixed by the short joint bar are jointed with the outer wall of the steel column; an ejector board in contact with an externally-arranged jack is arranged on each stiffening rib fixing board. Furthermore, the invention further discloses a one-off mounting and fixing method of the steel column strip substrate structure system. The ejector boards of the stiffening rib fixing boards provided by the invention provide a support and stress part for the jack, so that the jack adjusts the perpendicularity and the horizontal angle of the steel column, and then can be used for directly welding the steel column with the short joint bar. Therefore the steel column strip substrate structure system is mounted and fixed in one step, so that the steel column is synchronously constructed by positioning, correcting and fixed embedding. The effect correction of the substrate and the substrate at the upper part is enhanced through the short joint bar; meanwhile, loads in an early-period mounting and fixing and later-period structure construction are transferred to the substrate, so that the security of the entire structure construction system is ensured. The steel column strip substrate structure system and the one-off mounting and fixing method thereof provided by the invention can be widely used in the construction field.

The invention relates to the technical field of building engineering design and construction crossing, in particular to a design and construction method of temporary gate-type channel for building. The design and construction method of the temporary gate-type channel for the building comprises the following steps that 1, the position and composition of a temporary door type channel are determined; 2, a plane position map of the vertical rods of the beam and slab formwork supporting system is drawn; 3, plane positions of I-shaped steel stand columns, I-shaped steel main beams and I-shaped steel secondary beams are determined; 4, the axial force of a vertical rod above the temporary gate-type channel is calculated; 5, the bearing capacity of the I-shaped steel secondary beams is calculated; 6, the bearing capacity of the I-shaped steel beams is calculated; 7, the bearing capacity of the I-shaped steel stand columns is calculated; 8, I-shaped steel stand column construction is calculated; 9, the I-shaped steel stand columns is connected to the I-shaped steel main beams; 10, the I-shaped steel secondary beams are connected to the I-shaped steel main beams; and 11, a formwork supporting system is erected. The design and construction method is good in stress performance, safe and convenient to construct, short in period and low in cost, solves the key technical problem of design and construction of the temporary door type channel for the building, meets the efficient and energy-saving green construction requirements, and has great application and popularization value.

The invention discloses an organosilicone weather-resistant brushed decorative coating, which is prepared by mixing the following raw materials in parts by weight: 20-50 parts of alpha, omega-dyhydroxyl polydimethylsiloxane I, 50-80 parts of alpha-omega dyhydroxyl polydimethylsiloxane II, 5-15 parts of fumed silica, 40-60 parts of aluminium hydroxide, 5-20 parts of wollastonite, 5-15 parts of glass fiber, 10-25 parts of rutile titanium dioxide, 15-30 parts of nano calcium carbonate, 5-15 parts of hydroxyl silicone oil, 5-20 parts of a pigment, 5-13 parts of a cross-linking reactant, 0.35-0.85 part of a coupling agent, 0.1-0.2 part of an antifoaming agent, 0.2-0.5 part of a wetting dispersant and 2.5-5 parts of a catalyst. The organosilicone weather-resistant brushed decorative coating has excellent weather resistance, is very high in adhesive force on a substrate and has excellent thixotropic property.

A method for lifting, leveling and repairing the terrace of a soft soil foundation and a lifting structure thereof are provided. The lifting structure comprises a terrace (5) in which multiple lifting holes (1) are arranged through drilling, concrete bases (7), multiple anchor rods (6) implanted into the terrace (5) around the lifting holes (1), lifting counterforce frames (9), jacks (8) used to jack the lifting counterforce frames (9), and reinforcing piles (16). Each lifting counterforce frame (9) is fixedly connected with the anchor rods (6) around the corresponding lifting hole (1). A soft soil base layer (21) is arranged under the terrace (5), and a hard soil layer (22) is arranged under the soft soil base layer (21). The reinforcing piles (16) are arranged in the soft soil base layer (21) under the lifting holes (1) through drilling and extend into the hard soil layer (22). Each concrete base (7) is placed on the top of the corresponding reinforcing pile (16). Each jack (8) is supported on the top of the corresponding concrete base (7), and abuts against the bottom of the corresponding lifting counterforce frame (9). The method and the lifting structure have the advantages of good repair effect, convenient construction, and realization of construction on a soft soil foundation.

The invention discloses an organic silicon-containing super-weather-resistant type anti-cracking and anti-corrosion coating, which is prepared from the following raw materials: 100 parts of organic silicon elastic resin, 10-20 parts of fumed silica powder subjected to surface treatment, 5-15 parts of rutile type TiO2 subjected to surface treatment, 10-20 parts of zinc phosphate, 10-15 parts of aluminum tripolyphosphate, 3-5 parts of precipitated barium sulphate, 5-10 parts of mica powder, 2-5 parts of talcum powder, 5-10 parts of glass fibers, 15-20 parts of hydroxyl silicone oil, 1-10 parts of pigment, 3-10 parts of a crosslinking reaction agent, 0.5-2 parts of a coupling agent and 0.05-0.1 part of a catalyst. The super-weather-resistant type anti-cracking and anti-corrosion coating not only has excellent weather resistance so as to be long in service life, but also has good elasticity so as to overcome the coating cracking behavior caused by thermal expansion and cold contraction deformation of a metal base material under temperature gradient; furthermore, the coating also has excellent corrosion resistance, hydrophobicity and environmental friendliness.

The invention relates to a large and medium-sized reservoir for a sandy river, in particular to a reservoir for solving the problem of insufficient water storage in the subsequent flood season caused by precipitation and sediment discharge in the flood season, belonging to the field of water conservancy engineering, and its IPC classification number is E02B1 / 00, E02B 3 / 02. The invention divides a single reservoir area into a water storage area, a sand discharge area and a regulation area by building a "flood season water storage and sand discharge separation system" in the reservoir, and the three are connected through rubber dam groups. The water storage area stores clean water for a long time, and when the precipitation in the sand discharge area washes away, it can ensure that the water storage area still has a certain amount of backup water resources; using the adjustment area, it is convenient and flexible to use the clean water in the water storage area or sand discharge area to generate electricity , to prevent the damage to the power station caused by the flow of coarse sand in the sand discharge area. The "flood season water storage and sediment discharge separation system" system of the present invention solves the contradiction between large and medium-sized reservoir water storage for profit and flood discharge and sediment discharge, and does not affect the overall flood control operation of the reservoir during flood season.

The invention belongs to the technical field of anti-corrosive coatings, and particularly relates to an anti-corrosive coating for concrete surface and a preparation method thereof. The anti-corrosive coating for concrete surface is divided into a base coating and a surface coating, wherein the base coating is composed of a first component and a second component, the surface coating is composed of a component A and a component B; the first component and the component B both use epoxy resin as a base material; the second component and the component B are respectively composed of a curing agent and a curing promoter. While in use, the first component and the second component are uniformly mixed according to a proportion to obtain the base coating; and the component A and the component B are uniformly mixed according to proportion to obtain the surface coating. Compared with the prior art, the anti-corrosive coating for concrete surface has features of stable performance, strong adhesion, long service life, good corrosion prevention effect, green environmental protection, good decorative effect and simple production process, and can be used in highway bridges, offshore structures, factory buildings or the like. After the anti-corrosive coating is coated once, the high temperature resistance, the acid and alkaline corrosion resistance, and the service life are greatly improved.

The invention relates to an ammonium persulfate corrosion inhibitor used in oil production pipelines in offshore oil fields and its application. It is composed of inorganic passivators, organic carboxylic acids, metal ion inhibitors and water in a certain proportion. Under the condition of 60 ℃, the addition of 0.3% to 2% of the corrosion agent in the 3% to 5% ammonium persulfate solution has excellent corrosion inhibition effect.

The invention relates to a bolt connection structure for manufacturing a tank body and a manufacturing method thereof and belongs to the field of civil engineering. The bolt connection structure for manufacturing the tank body and the manufacturing method thereof are used for solving the problems that tank body structures of nuclear power station containments and oil storage tanks in large energystructure engineering in the prior art are high in site construction difficulty, long in period, high in construction cost, inconvenient to construct during site welding construction and low in safetycoefficient. The bolt connection structure comprises four square modules and four hexagonal joint modules; the four square modules are spliced into a square block body, and every two adjacent squaremodules are fixedly connected through a corresponding hexagonal joint module and a plurality of bolts; and the connection positions of the square modules and the hexagonal joint modules are fixedly connected through self-compacting concrete.

The invention discloses a method for constructing a multiple-arch tunnel hole body large room-free pipe shed support. The construction working procedures comprise composite guide wall construction and guide pipe mounting, drilling, large pipe shed and reinforcement cage mounting, composite type guide wall casting concrete layer breaking and removing, discarded drilled segment soil excavation, grouting, large pipe shed supporting segment excavation, next circular construction and the like. The method avoids multi-cycle repeated expanding excavation of a pipe shed working room in a multiple-arch tunnel, reduces construction risks, the expanding excavation earth volume, the use amount of primary supporting second lining concrete and the number of steel arches and saves engineering cost; the construction speed is improved, and the working efficiency is greatly improved; the construction risks like the possibly-caused tunnel damage caused by stress concentration and the like due to the fact that a cross section is expanded and the pipe shed working room is excavated in the weak poor stratum are reduced, and the influence of urban narrow underground space on near existing constructed (built) buildings is reduced; and compared with a traditional pipe shed advance support with the working room, the whole advance support and tunnel excavation process is safer and more reliable.

The invention discloses multi-row ultradeep inclined compound anchor rod piles for narrow space. Each compound anchor rod pile comprises an anchor rod main body structure (1) and a pulp cementing body(2); pulp cementing materials (2) are filled around the anchor rod main body structures (1); the anchor rod main body structures (1) comprise multiple anchor rods (4), connecting pieces (5) and limiting fixed pieces (6); the anchor rods (4) comprise upper sections (9) and lower sections (10), which are the same in length and connected through threads; multiple grouting holes are uniformly distributed in the peripheries of the upper sections (9); sealing anchor structures (11) are arranged at the upper ends of the upper sections (9); pile holes (3) of the compound anchor rod piles are small intop and big in bottom; and the bottom sections of the pile holes (3) are cross. The anchor rod piles are simple in structure, reasonable in design, convenient to construct and excellent in use effect, can effectively support metro station foundation pits, and are more suitable for special construction environments with narrow space such as deep foundation pits.

The invention relates to a net rack, and particularly relates to a battery panel of a tracking bracket system. The net rack comprises a solar battery, a battery panel fixing rack and a cross beam, wherein the solar battery is fixed above the battery panel fixing rack; one ends of transmission shaft mechanisms are respectively fixed below the battery panel fixing rack, and the other ends are positioned and connected with transmission shaft fixing plates; the transmission shaft fixing plate are respectively fixed on the cross beam; two or more transmission shaft mechanisms are provided; and two or more transmission shaft fixing plates are provided. With the adoption of the net rack, the assembling and construction are convenient and safe, the labor cost in installation is saved, and problems of complex construction, operation danger and the like caused by working high above the ground are avoided.

The invention discloses a construction method of an arc cable wire slot structure. The arc cable wire slot structure comprises a cable wire slot and a wire slot bearing part, wherein the cable wire slot comprises two segments of linear wire slots and an arc wire slot for connecting the two sections of linear wire slots; the arc segment wire slot is slot-shaped and comprises two connecting units with the same shape and size; two connecting units are in left-right mirroring butt joint, each connecting unit comprises a bottom plate, and a long ledge and a short ledge which are respectively vertical to the bottom plate. The construction method comprises the steps of computing the bend angle of the arc segment wire slot, counting the angle and the type of the arc segment wire slot, drawing a blank part detail drawing by using the 3D software, processing to produce the arc segment wire slot and numbering, paying off according to the mounting of a wire slot support by a design drawing, and mounting the wire slot. The construction method can satisfy the demand of the rigid cable wire slot mounting when the municipal integrated trench construction arc structure part is high in occupancy, the arc wire slot is multiple in specification and model, the cable laying quality requirement is high, and the mounting space arrangement difficulty is large.