34results about How to "Easy construction control" patented technology

The present invention discloses a small-bore long distance curved pipe jacking method, belonging to the technical field of architectural construction, and comprising the following steps: constructing a working well; mounting construction equipment; leading in a measuring axis and a benchmark; taking the jacking tubes in position; jacking; grouting; constructing pipelines in the working well; and finishing the cleaning; the construction equipment comprises a development machine, a curved guide machine with an automatic measurement system, a jack and a pump cylinder, wherein the curved guide machine is connected to a back end of the development machine; the jack is mounted in the working well; the pump cylinder is mounted in a duct of the curved guide machine; the pump cylinder is used for conveying thixotropic mud to between an outer wall of the jacking tube and a soil body via a slip casting tube; during the jacking procedure, the adjacent jacking tubes are connected by a pipe joint sleeve. The method of the present invention enables the prior impossible small-bore long distance quick turn construction to be possible; the economic benefit is good, and construction precision is high; the environment problems like traffic obstruction and the like are solved successfully.

The invention discloses a method for installing a steel box arch rib buckle by the hanging method. The method is characterized in that: the construction method is divided into three stages, namely a lifting stage, a positioning stage, a buckle conversion stage and a secondary stretching stage; the steel box arch rib buckle mounting method comprises the following steps: The method has clear division of each stage, clear stress of each stage of the buckling and hanging system structure, and convenient construction control of various operations, which lays a foundation for ensuring the ideal goalof the bridge state. At the same time, the quick locking device used in the construction method can be used for temporary consolidation, the operation is simple and convenient, the connection is fast, the connection strength is guaranteed, the connection can be recycled after simple treatment, and has certain installation deviation adaptability. Therefore, it can be said that the construction method designed by the invention has a relatively prominent embodiment in technology, quality, safety and economy, and is particularly suitable for popularizing and applying in the field, and has a verybroad market prospect.

The invention relates to a stamping device civil engineering installation level control device and belongs to the technical field of machine tool equipment. The stamping device civil engineering installation level control device comprises a support embedded plate provided with a grouting hole and a plug welding hole, a leveling anchor bar and a fixing anchor bar, wherein the leveling anchor bar and the fixing anchor bar are welded in the plug welding hole. The invention further discloses an installing method. The installing method comprises the steps of pre-embedding the leveling anchor bar and the fixing anchor bar in concrete and adjusting the leveling anchor bar to be horizontal; aligning the plug welding hole in the support embedded plate to the leveling anchor bar and the fixing anchor bar, placing the support embedded plate, reserving a concrete to-be-cast space under the support embedded plate and adjusting the leveling anchor bar to be horizontal with the support embedded plate; performing plug welding to the support embedded plate, the leveling anchor bar and the fixing anchor bar and cutting off and grinding the portions of the upper end faces of the leveling anchor bar and the fixing anchor bar exposing out of the support embedded plate to be smooth; pouring concrete into the grouting hole in the support embedded plate and filling up the concrete to-be-cast space reserved under the support embedded plate. The design method is clear and definite, the construction control is simple and convenient, and construction faults can be effectively reduced.

The invention provides a slope hydraulic self-propelled concealed-rail drag mold, which comprises travel beams, a balance beam, a template system, a working platform, a hydraulic system and the like, wherein each travel beam consists of a crossbeam, a front sliding seat, a back sliding seat, adjusting screws and a cylinder block; the front sliding seat is in rigid connection with the crossbeam, and the back sliding seat is hinged with the crossbeam; the template system consists of a template, a bearing beam and a template system support frame; the bearing beam is parallel to the balance beam; two ends below the bearing beam and the balance beam are respectively provided with a travel beam in the vertical direction; the rear end of the template is provided with the template system support frame; the working platform is parallel to a rail, and is obliquely tensioned on the template system support frame through a spiral lock button; the hydraulic system mainly comprises a hydraulic pump station, advancing cylinders, a hydraulic pipeline and the like; the hydraulic pump station is arranged in the middle of the bearing beam; and an advancing cylinder is arranged below each of two travel beams. The drag mold is not limited to the slope gradient, can ensure that concrete can be continuously poured in large cube amount and large area, and ensures high pouring speed and good quality.

The invention discloses a cable force calculation method and calculation device for an inhaul cable, and the method comprises the steps: collecting the time domain data of a target inhaul cable according to a preset time interval, and converting the time domain data into frequency domain data through employing a fast Fourier transform method, so as to construct a spectrogram; identifying all wavecrest data in the spectrogram by using a second derivative method; screening out first wave crest data exceeding a preset wave crest threshold value from all the wave crest data; determining second wave crest data in the first wave crest data according to a preset frequency interval; and calculating the cable force of the target inhaul cable based on the second wave crest data. According to the method, interference data can be automatically filtered from frequency domain data, the wave crest of the inhaul cable is recognized, the tension of the inhaul cable is accurately calculated, and then construction control and health monitoring of an inhaul cable structure are facilitated.

The invention relates to the technical field of building materials, in particular to self-compacting concrete prepared from modified ceramic polishing powder and a preparation method of the self-compacting concrete. The self-compacting concrete is prepared from the following raw materials: cement, modified ceramic polishing powder, fly ash, coarse aggregate, artificial sand, water and a polycarboxylic acid high-performance water reducing agent, the modified ceramic polishing powder is obtained by sequentially carrying out soaking treatment on ceramic polishing fine powder through a coupling agent solution and soaking treatment through a coupling agent solution added with cellulose ether and an organic silicon defoaming agent. The specific surface area of the ceramic polishing fine powder is 800-830 m < 2 >/kg. The self-compacting concrete is doped with the modified ceramic polishing powder, so that the compactness of the concrete can be effectively improved, the flowability and the water-retaining property of the self-compacting concrete can also be improved, more obviously, the later strength of the concrete is better improved, and the problem of shortage of mineral admixture resources can be effectively solved.

The invention discloses a construction method for a high-rise housing novel building system under the general-control construction period. The construction method comprises the following steps that foundation construction is conducted; a foundation under layer is constructed till the foundation under layer reaches the plus-or-minus-zero height; an N-layer major structural layer is constructed;an (N-1)-layer template-dismounting layer is constructed; an (N-2)-layer roof-propping water-stopping layer is constructed; an (N-3)-layer inner wallboard mounting layer is constructed; an (N-4)-layer ceiling putty layer is constructed; an (N-5)-layer ceiling suspending layer is constructed; an (N-6)-layer kitchen and bath brick laying layer is constructed; an (N-7)-layer hall and room brick laying layer is constructed; an (N-8)-layer windowsill mounting layer is constructed; an (N-9)-layer wall surface putty layer layer is constructed; an (N-10)-layerindoor door mounting layer is constructed; an (N-11)-layer component mounting layer is constructed; an (N-12)-layer wood floor laying layer is constructed; and an (N-13)-layer clean-keeping land-clearing layer is constructed. According to the construction method for the high-rise housing novel building system under the general-control construction period, compared with a traditional construction method, the construction period can be shortened while the construction quality is guaranteed, the construction method is more suitable for the building construction practice under a current novel building system, all-stage working periods in the whole building process of a high-rise housing are reflected in time, and the construction method has perspectiveness within the industry and is high in practicability.

The invention relates to the technical field of asphalt modifiers, and discloses an asphalt-modified CMAR composite modifier which is prepared from 40-70 parts of waste rubber powder, 10-40 parts of chlorinated polyethylene, 2-12 parts of nano carbon black and 8-20 parts of polyolefin wax. The invention also provides a preparation method of the asphalt modified CMAR composite modifier, which comprises the following steps: S1, grinding the raw materials: grinding the waste rubber powder again, and filtering after grinding; s2, mixing the raw materials: putting the raw materials into an internal mixer for open milling; and S3, extruding and granulating. According to the present invention, the compatibility is reasonable, the ingredients are common raw materials, the cost is low, the main component of the composite modifier is the waste tire rubber powder, the modified asphalt prepared by using the composite modifier has the same environmental protection economy as the rubber modified asphalt, the compatibility in the asphalt system is improved, and the blending temperature is reduced.

The invention discloses a steel casting capable of forming a full cast steel structure, which comprises a joint core area part, a vertical component, and a horizontal curve component which are all fixedly and integrally connected. Through the adoption of the steel casting, some structural steel constructions with complex modeling form a structure through the connection between steel castings, so as to be able to lower the construction difficulty and construction cost, improve the load-bearing capacity of the structure, shorten the mounting period of the structure, and be able to perfectly realize functions and effects of the constructions.

A double-wall steel hanging box cofferdam provided with rapid mounting and dismounting double lock catch devices is characterized in that a first C-shaped pipe and a second C-shaped pipe are welded toa second box wall board of a first steel hanging box, and a third C-shaped pipe and a fourth C-shaped pipe are welded to the box wall of a second steel hanging box; triangular stiffening plates the same in structure are welded to the first C-shaped pipe, the second C-shaped pipe, the third C-shaped pipe and the fourth C-shaped pipe correspondingly; two end wing plates of first joist steel and second joist steel are arranged in the first C-shaped pipe, the second C-shaped pipe, the third C-shaped pipe and the fourth C-shaped pipe correspondingly; first long-strip-shaped stiffening plates are welded to the first C-shaped pipe and the third C-shaped pipe, and second long-strip-shaped stiffening plates are welded to the second C-shaped pipe and the fourth C-shaped pipe; the first lock catch device and the second lock catch device are arranged on the front-back outer walls of the first steel hanging box and the second steel hanging box correspondingly, the first steel hanging box and the second steel hanging box are installed and fastened together, and the double-wall steel hanging box cofferdam provided with the rapid mounting and dismounting double lock catch devices is formed.