599results about How to "Simplify the construction process" patented technology

The invention relates to the technical field of construction trolley equipment, in particular to three-layer overlapping assembly type underground station assembling trolley equipment which comprises a movable pedestal, a movable platform, a movable platform, a movable platform, a movable platform and a movable platform, wherein the movable pedestal is provided with a shear-type lifting platform which ascends and descends in the vertical direction; the fixed frame seat is fixedly mounted on the shear type lifting platform; the side wall assembling assembly comprises a horizontal connecting plate which is horizontally and movably mounted on one side of the fixing frame base and an L-shaped supporting plate which is mounted at the outer end of the horizontal connecting plate; the moving block is horizontally and movably mounted on the other side of the fixing frame base through a driving source, and a longitudinal beam supporting plate and a clamping jaw are mounted on the moving block; the arranged movable pedestal is matched with the fixed frame seat, so that a lifting function and a mounting site are provided, and the device can be suitable for splicing operation of a three-layer overlapping assembly type underground station; the equipment has mobility, the structure is stable and reliable in the construction process, and the requirement for gravity bearing of the prefabricated part can be met; quick positioning and assembling of the assembling position of the prefabricated part can be achieved, then the construction procedure is simplified, and the construction efficiency is improved.

The invention relates to the technical field of building construction regulation and control, and discloses an efficient construction multi-element real-time dynamic regulation and control method based on an intelligent algorithm, and the method comprises the steps: building a personnel database, and recording the competent work types, skill levels and working experience of personnel; according to a construction project, screening personnel based on an intelligent algorithm, and performing personnel allocation; monitoring the material inventory of the construction project in real time; acquiring data of personnel position, material supply, equipment operation state, construction progress and construction quality of the construction site; based on an intelligent algorithm, adjusting task distribution of the personnel according to the acquired personnel position state data; according to the efficient construction multi-element real-time dynamic regulation and control method based on the intelligent algorithm, human resources can be reasonably utilized, supply of construction materials is guaranteed, the construction efficiency can be effectively improved, the construction quality is guaranteed, and the construction cost is reduced.

The invention relates to the field of recycled concrete, and discloses a high-strength recycled concrete formula and a preparation method thereof, the high-strength recycled concrete formula comprises the following raw materials by weight: 180-240 parts of cement, 600-800 parts of hydrophobic modified recycled coarse aggregate, 180-280 parts of recycled fine aggregate, 400-600 parts of sand, 300-500 parts of fly ash, 60-120 parts of silica fume, and 20-30 parts of a water reducer, the modified waste rubber powder is prepared from, by weight, 25-35 parts of modified waste rubber powder, 10-40 parts of polyethylene wax, 2-4 parts of m-phenylenediamine and 12-16 parts of tetramethyl orthosilicate. In the invention, by using a large amount of recycled aggregate (coarse aggregate and fine aggregate), the exploitation of new natural resources is effectively reduced, the reutilization rate of building wastes is improved, and by optimizing the proportion and adding a plurality of modifiers (such as silica fume, fly ash, modified waste rubber powder and the like), the mechanical properties such as compression resistance, fracture resistance and the like of the concrete are remarkably improved; by adding the hydrophobic modified recycled coarse aggregate and the penetrant, the impermeability and durability of the concrete are enhanced, so that the performance and the application range of the recycled concrete are improved.

The invention provides a tunnel hard rock non-blasting excavation method. The tunnel hard rock non-blasting excavation method can realize efficient excavation of complete or relatively complete hard rock without adopting large excavation equipment such as a heading machine and the like , and is characterized by comprising the following steps of 1, drilling contour holes along a tunnel face contour line so as to determine a tunnel excavation range, and determining each drilling and grooving position according to the excavation range, then, forming and drilling a plurality of cavity expanding holes in the position close to the positions; 2, drilling a plurality of rows of guide holes between the contour holes and the cavity expanding holes; 3, drilling groove forming holes which are meshed and overlapped with each other at the determined drilling and grooving positions, and finally forming a groove cavity; 4, enabling the cavity expanding holes near the groove cavity to be subjected to impact crushing, and therefore expanding excavation is conducted on the groove cavity; 5, according to a certain excavation sequence, starting from the guide holes close to the expanded and excavated groove cavity, adopting a hydraulic breaking hammer for conducting impact breaking on the guide holes, so that excavation of the rock mass of a main body part is completed; and 6, conducting impact crushing on the contour holes.

The invention discloses a deep thick and hard rock stratum roof directional long drill hole staged fracturing weakening method and system, and relates to the technical field of coal mining. The method comprises the following steps: determining a fracturing target horizon according to mining area geological data and to-be-treated working face monitoring data; a drill site construction position is determined, and drilling track parameters are determined in the fracturing target horizon; a fracturing assembly is installed, fracturing construction parameters are determined, and the operation sequence of drilling construction and fracturing construction is determined; and drilling construction is conducted according to the operation sequence, fracturing construction is conducted through the fracturing assembly, and the stability condition of the roadway is monitored in the whole process and before and after. The technical scheme aims at weakening far-field strong stress of a top plate of a thick and hard coal rock stratum overlying a deep coal mine underground roadway, and is particularly suitable for design of a directional long drilling hole fracturing weakening scheme in the field of deep thick and hard rock stratum top plate pressure relief and roadway protection engineering. And the roadway deformation condition under the disturbance influence of advanced high supporting stress and mining strong stress of the working face is improved.

The invention relates to the technical field of intelligent chemical engineering, and discloses an intelligent chemical engineering construction safety and quality detection method based on big data, and the method comprises the following steps: 1, installing a monitor and a sensor; step 2, intelligent analysis; step 3, predictive maintenance; step 4, risk assessment; step 5, quality control; step 6, safety management; 7, accident prevention; 8, remote real-time management is carried out; step 9, decision support; step 10, intelligent reporting; and step 11, displaying an interface. According to the intelligent chemical engineering site construction safety and quality detection method and system based on big data, through real-time monitoring and risk assessment, the intelligent chemical engineering site system can improve the safety management level of a construction site and reduce accidents, and the system can predict potential safety risks and take measures to avoid the potential safety risks by utilizing predictive maintenance and accident prevention technologies; and by using big data and an intelligent optimization algorithm, the resource allocation and the construction process are optimized, and the construction efficiency is improved.

The utility model provides a slope reinforcing device, and belongs to the technical field of highway slope protection. The slope reinforcing device comprises a reinforcing frame and a plurality of mounting openings formed in the reinforcing frame, a plurality of reinforcing supports are welded to the inner side walls of the mounting openings, a plurality of anchoring mechanisms are mounted on the reinforcing supports, each anchoring mechanism is composed of a fixing ring, a plurality of through holes, a mounting piece and a fixing piece, and the through holes are formed in the surface of the fixing ring at equal intervals. The top end of the mounting piece is attached to the bottom end of the fixing ring, the bottom end of the fixing piece is connected with the interior of the mounting piece in an inserted mode through the inner ring of the fixing ring, and the top end of the fixing piece is fixed to the top end of the mounting piece through a bolt. Through the modular design of the anchoring mechanisms and the synergistic effect of the protective net and the drainage groove, all the parts can be independently disassembled and replaced, and later maintenance and overhaul work is facilitated. And meanwhile, slope instability caused by water accumulation or soil loosening is prevented.

A reinforced joint of a crossed concrete filled steel tubular column for a cooling tower convenient to construct comprises four steel supporting columns, a radial reinforcing plate and an annular reinforcing plate, the four steel supporting columns are welded to form the crossed steel tubular joint of an X-shaped structure, and the radial reinforcing plate and the annular reinforcing plate are welded in the crossed steel tubular joint. The four steel supporting columns and the positions of the reinforced joints are all filled with concrete. Compared with the prior art, the reinforcing joint has the following advantages: (1) the reinforcing joint is not provided with a stiffening rib inside the steel pipe, so that the condition that a plurality of welding seams are mutually crossed is avoided, the construction process is simplified, and the manufacturing is simple; meanwhile, the reinforcing part is not exposed outside the component, and the appearance is attractive. And (2) the reinforced node can be designed based on the principle of'strong node and weak component ', the annular reinforcing plate and the radial reinforcing plate respectively improve the in-plane and out-plane rigidity of the crossed steel tube concrete, and also improve the steel content of the section, so that the bearing capacity of the node is improved, and the node is safer and more reliable.

The invention discloses a design method for a steel bar component. According to the method, a large amount of historical design data can be quickly processed and analyzed through the machine learning model, and key factors influencing axial force reinforcement calculation are automatically identified, so that the calculation efficiency is improved. The machine learning model automatically completes calculation through an algorithm, and errors in the calculation process are reduced. The fully trained machine learning model can accurately predict the reinforcing steel bar area based on the input parameters, and the design accuracy is improved. A machine learning model can discover a hidden relationship between data by analyzing historical data, which is particularly important for reinforcement calculation caused by axial force because the axial force is related to various factors, such as structure size, material characteristics and the like. Machine learning is applied to the reinforcement calculation process caused by the axial force, the intelligent level of design can be remarkably improved, the design efficiency and quality are improved, and meanwhile powerful technical support is provided for cost optimization.

The offshore foundation steel pipe pile sinking construction method comprises the steps that steel pipe piles are positioned; perpendicularity control: after the pile tip of the steel pipe pile enters the mud, the crane stops hooking, and a total station is erected on the pile stabilizing platform to measure the perpendicularity of the steel pipe pile; the crane continues to hook downwards, and when the steel pipe pile enters the mud by 1.5-2.5 m, a hydraulic hammer located at the top of the steel pipe pile is started so that the steel pipe pile can be sunk; elevation control is conducted, specifically, a hydraulic hammer is sleeved with a hammer cap sleeve with the known length, a pile feeder with the known length is arranged between the steel pipe pile and the hammer cap sleeve, after scale marks are arranged on the pile feeder, reading is conducted through the scale marks, and the steel pipe pile is controlled to be sunk to the elevation after the hydraulic hammer is started; and acceptance. By means of the pile sinking construction method for the offshore foundation steel pipe pile, the problem that in the prior art, due to the fact that signals are unstable, measurement errors are large and the like, construction measurement cannot meet the requirements for elevation and perpendicularity control of the steel pipe pile easily, and the pile sinking precision cannot meet design specifications can be solved.

The invention discloses a floating suspension type jacket high-pile wharf structure suitable for ultra-large water depth and a construction method, and belongs to the technical field of high-pile wharfs. The structure comprises a jacket, a pile foundation and an upper structure; the lower part of the upper structure is connected with a pile foundation; the jacket is installed on the lower end face of the upper structure and connected to the pile foundation. The upper structure comprises a sleeve box type pile cap, a cross beam, a longitudinal beam and a laminated panel; the sleeve box type pile cap is installed on the upper end face of the pile foundation. The longitudinal beam system is installed on the upper end face of the sleeve box type pile cap. The cross beams are mounted between the adjacent longitudinal beam systems; and the laminated panel is flatly laid on the surface layer of the upper structure. The structure adapts to a large-water-depth and large-flow-velocity environment by exerting the structural advantages of the structure, and the structure is small in underwater construction work amount, high in assembly degree, small in environmental influence, short in construction period and low in engineering investment.

The invention relates to a fabricated track structure facilitating vibration reduction upgrading and a construction method. According to the fabricated track structure convenient for vibration reduction upgrading, the prefabricated track plate is provided with a first supporting surface and an arrangement space, and the top surface of the base is provided with an embedded sleeve, so that a supporting adjusting piece or a special vibration reduction component can be detachably connected between the prefabricated track plate and the base through a fixing bolt; therefore, the replacement from the support adjusting piece to the special vibration reduction component can be realized, that is, common vibration reduction can be upgraded to special vibration reduction; and the corners are arranged through the prefabricated track plates, so that the second supporting surfaces of the prefabricated track plates are lower than the first supporting surfaces, and then the anti-vibration pads can be laid between the prefabricated track plates and the base after the supporting adjusting pieces are dismounted, namely common vibration reduction can be upgraded to high-level vibration reduction. According to the assembly type track structure facilitating vibration reduction and upgrading, conversion or upgrading from common vibration reduction to high-level vibration reduction and special vibration reduction can be achieved at the same time. And compared with the prior art, the replacement efficiency is high.

The invention belongs to the technical field of concrete beam column structures, and particularly relates to a beam column structure locally internally provided with thin-wall steel pipes and a mounting method of the beam column structure. By reasonably arranging the internally-arranged steel pipes and the reinforcing steel bars, the effects of reducing the dead weight of the structure and improving the bearing capacity are achieved. Due to the application of the steel pipe, the bending resistance and the shearing resistance of the concrete member are enhanced, and generation and expansion of cracks are effectively delayed. In addition, as the steel pipe has high strength and rigidity, the structure can still keep stable under the condition of high load, and is particularly suitable for occasions needing high bearing capacity, such as bridges and buildings. The stress characteristics of beam column components are fully considered, and a novel design method for internally-arranged steel pipe concrete is provided. Through detailed analysis of construction details and working principles, professional technicians can implement the method according to description, so that the safety and economical efficiency of an engineering structure are effectively improved. The shear resistance, the bending resistance and the overall stability of the structure are improved.

The invention relates to the field of mobile data communication services, in particular to a subway rail transit underground space emergency communication system and an arrangement method thereof. The subway rail transit underground space emergency communication system provided by the invention comprises a first communication link used for transmitting service data in a first state; the second communication link is used for transmitting service data in a second state; the communication link monitoring module is in signal connection with the first communication link and is used for monitoring the signal-to-noise ratio of data transmission in the first communication link; and the communication link switching module is in signal connection with the communication link monitoring module, is respectively in signal connection with the first communication link and the second communication link, and is used for switching the data transmission path from the first communication link to the second communication link according to the signal-to-noise ratio of data transmission in the first communication link. According to the invention, through double-link redundancy and rapid switching, automatic switching to a standby link is realized under abnormal conditions such as optical fiber faults or power interruption, and continuous and uninterrupted communication is ensured.

The invention discloses a process for mineralizing a concrete mixture by using a carbonic acid solution and a process method thereof. The process comprises a heat exchange module, a gas-liquid mixing module, an ion additive dissolving module and a mixture mineralizing module, after the carbonic acid solution passes through the heat exchange module, the gas-liquid mixing module and the ion assistant dissolving module, an ion enhanced carbonic acid solution is output; through the mixture mineralization module, concrete, gravel and cement raw materials are mixed with an ion-enhanced carbonic acid solution, and a carbonic acid solution mineralized concrete mixture is prepared. As only equipment of the carbonic acid solution needs to be additionally arranged on an existing concrete production line, carbon dioxide atmosphere curing does not need to be carried out after the concrete is hardened, the fluidity of a concrete mixture is not affected, the construction performance of the concrete can be guaranteed, and no negative influence is caused to an existing premixed concrete pouring forming process.

The invention discloses a pipe cleaning, pressure testing and baseline detection combined construction method for a deep sea composite pipe, which comprises the following steps: injecting fresh water into the composite pipe, keeping the water pressure, and preliminarily cleaning the composite pipe; pipe cleaning operation is conducted, and the composite pipe is cleaned again; performing a pressure test, and checking the sealing performance of the composite pipe; and performing baseline detection to detect metal loss in the composite pipe. Pigging pressure test and baseline detection of original staged construction are integrated into combined construction, a set of efficient, economical and safe submarine pipeline pigging pressure test detection process is formed, meanwhile, the requirement for integrity management of submarine pipelines is met, the construction process is simplified, the construction period is shortened, the construction cost is saved, and the economical efficiency is improved.

The utility model relates to the technical field of pipeline coating processing equipment, in particular to DTS non-scaling pipeline processing equipment. Comprising a material storage part, a filling part for applying a coating to the interior of a pipeline, a drying part and a material collecting part are sequentially arranged in the discharging direction of the material storage part, the drying part drives the pipeline to linearly move and generates upward high-temperature gas, and the pipeline is pushed to enter the material collecting part to be stored after being dried; the discharging direction of the storage part and the discharging direction of the drying part are respectively provided with a track used for turning over the pipeline by 90 degrees; the device can effectively realize the construction operation of the nano coating of the pipeline, form a complete operation process, simplify the construction procedure and improve the production efficiency.

The invention relates to a nuclear power reactor building outer dome and an installation method thereof.In the nuclear power reactor building outer dome, on one hand, steel molds are prefabricated into steel mold units in a factory in a blocking mode, after the steel mold units are transported to a site, the steel mold units are spliced into a finished steel mold on the site, and then the steel mold is integrally hoisted to the top of a corresponding reactor building; and a scaffold does not need to be erected on the inner dome, so that the construction process is greatly simplified, a large amount of time and manpower resources are saved, and the construction efficiency is improved. And on the other hand, all the steel molds are directly hoisted after off-site assembly is completed, a scaffold for supporting the outer dome does not need to be erected outside the inner dome, the construction period is effectively shortened, and the project progress is accelerated.

The invention relates to a freezing method foundation pit anti-permeation isolation system which comprises a plurality of freezing pipes inserted into a soil body near a foundation pit and distributed in an arch shape, a saline water main pipe sequentially connected with the freezing pipes and freezing stations connected to the two ends of the saline water main pipe. A lead screw, a nut lifting plate matched with the lead screw and a partition plate for guiding the nut lifting plate are arranged in a pipe body of the freezing pipe, the nut lifting plate divides the pipe body of the freezing pipe into an upper cavity and a lower cavity which are not communicated with each other, and a liquid inlet and a liquid outlet which are communicated with the brine main pipe are formed in the top of the pipe body of the freezing pipe; a heating plate is arranged in the partition plate; low-temperature saline water in the freezing station enters an upper cavity of the freezing pipe through the saline water main pipe to freeze a soil body, and anti-permeation isolation is carried out; the driving motor drives the lead screw to rotate, the lead screw drives the nut lifting plate to move up and down in the pipe body of the freezing pipe, the height of the upper cavity is adjusted, and freezing of stratums of different depths is achieved. And the heating plate is used for heating the low-temperature saline water in the freezing pipe and unfreezing the soil body.

The invention provides a single-component silane modified polyether sealant as well as a preparation method and application thereof. The single-component silane modified polyether sealant is prepared from the following raw materials in parts by weight: 280 to 300 parts of silane modified polyether resin, 100 to 130 parts of environment-friendly plasticizer, 500 to 550 parts of nano calcium carbonate, 10 to 30 parts of fumed silica, 3 to 5 parts of ultraviolet light absorber, 3 to 5 parts of light stabilizer, 3 to 5 parts of antioxidant, 15 to 20 parts of dewatering agent, 15 to 25 parts of silane coupling agent and 3 to 5 parts of catalyst. The single-component silane modified polyether sealant provided by the invention has excellent bonding performance to a metal substrate, has high hardness, high tensile strength, high elongation at break and high shear strength, is moderate in viscosity, is beneficial to conventional process construction, and has excellent comprehensive performance.

The utility model relates to a net hanging device for concrete spraying, and relates to the technical field of building construction, the net hanging device for concrete spraying comprises a steel bar net piece and a connecting piece, the connecting piece is used for being fixed to a structure to be subjected to concrete spraying, and the steel bar net piece is hung on the connecting piece; the connecting structure further comprises a pressing piece, and the pressing piece is pressed on the reinforcing mesh and fixedly connected with the connecting piece. Through the design of the connecting pieces and the pressing pieces, the reinforcing mesh is fixed to the structure, the concrete rebound phenomenon can be effectively reduced, and the construction quality and efficiency in the concrete spraying process are ensured; due to the design of the pressing piece, the reinforcing mesh can be evenly and stably pressed on a structure, the reinforcing mesh is prevented from tilting or bending in the spraying process, and therefore the stability and durability of the mesh hanging device are guaranteed; the construction process is simple and clear, operation is convenient and fast, the net hanging device can be rapidly used, the construction period is shortened, the site guidance difficulty is reduced, and economic benefits are improved while the construction quality is guaranteed.

The invention relates to a prevention and drainage combined fabricated underground side wall waterproof node and a construction method, the node comprises a side wall and a prefabricated middle plate, the side wall comprises an upper prefabricated wall body, a lower prefabricated wall body, a pre-pouring wall body and a post-pouring wall body, and a side wall abutted seam is formed between the upper prefabricated wall body and the lower prefabricated wall body; a cast-in-place concrete construction joint is formed between the firstly-poured wall body and the later-poured wall body, the side wall abutted seam and the cast-in-place concrete construction joint are staggered, a water stop strip and a compression sealing body are arranged in a cushion layer of the side wall abutted seam, and a waterproof material, a water stop steel plate and water stop glue are arranged in the cast-in-place concrete construction joint. The connecting area of the prefabricated middle plate and the side wall is located on the top of the lower prefabricated wall body and is connected with the side wall by pouring concrete in the side wall and middle plate cast-in-place area. The problems that in an existing fabricated underground structure side wall and middle plate waterproof design, the joint waterproof effect is poor, construction is complex, and drainage measures are lacked are solved.

The utility model relates to the technical field of building construction, and discloses a soft soil deep foundation pit supporting structure for building construction, which comprises side plates, a plurality of fixing plates are fixedly connected to the opposite sides of the two side plates, bolts are in threaded connection to the opposite sides of the fixing plates, light steel is rotationally connected to the bottom ends of the fixing plates, and the bottom ends of the light steel are in threaded connection with bolts. And rotating blocks are rotationally connected to the opposite sides of the multiple fixing plates, supporting plates are rotationally connected to the opposite sides of the multiple rotating blocks, moving blocks are rotationally connected to the bottom ends of the multiple supporting plates, and sliding grooves are formed in the sides, away from each other, of the multiple pieces of light steel. According to the device, the stability of a soil body is enhanced by applying tensile force in advance through the first anchor rod and the second anchor rod, the fixing plates are connected through the multiple reinforcing rods, the construction process is simplified, the construction efficiency is improved, the threaded rods are driven to extend by rotating the rotary knobs on the two sides of the storage column, and therefore reinforcing treatment is conducted through the telescopic rods.

The invention discloses a flexible flat optical cable for pipeline monitoring and a laying method thereof, and the flexible flat optical cable comprises an upper protection layer and a lower protection layer which are both flexible layers. An optical fiber in sine wave distribution is embedded between the two protection layers; a fastening sleeve is arranged outside the optical fiber, and an adhesive layer used for being adhered to the outer surface of a pipeline is arranged on the upper protective layer or the lower protective layer. According to the flexible flat optical cable for pipeline monitoring, the problem of winding and twisting of the optical fiber in the prior art is effectively solved by adopting the flexible flat optical cable structure, and the stability of the optical fiber is improved; the design of the flexible flat optical cable meets the requirement of pipeline monitoring, it is guaranteed that the optical cable can be flatly wrapped on the surface of the pipeline, the optical cable can be rapidly and conveniently fixed to the pipeline in cooperation with use of the bonding layer, the construction process is simplified, and the construction efficiency is improved.

The invention provides a sandwich heat preservation floor slab and a forming method thereof and a prefabricated slab for the sandwich heat preservation floor slab, and belongs to the field of heat preservation composite floor slabs, the sandwich heat preservation floor slab at least comprises two prefabricated slabs, the two prefabricated slabs are closely spliced and laid on a structural beam to achieve support-free, and a bottom plate part, to be poured, of the floor slab is formed. The prefabricated plate comprises prefabricated bottom plate layers and heat preservation layers, the heat preservation layers are formed on the prefabricated bottom plate layers, plate edges of the adjacent prefabricated bottom plate layers are closely spliced to form splicing seams, connecting grooves are formed in the positions, close to the splicing seams, of the heat preservation layers, notches of the connecting grooves in the adjacent heat preservation layers are opposite, and lap joint pieces are arranged in the connecting grooves of the adjacent heat preservation layers in a lap joint mode. A cast-in-place layer is formed on the heat preservation layer in a pouring mode, the cast-in-place layer at least covers the lap joint pieces, and the connecting grooves are filled with the cast-in-place layer to form a three-layer sandwich structure with the prefabricated bottom plate layer, the heat preservation layer and the cast-in-place layer.

The invention discloses a slurry shield small-space multi-interval fixed-point slurry pipeline extension system and a construction method, and solves the problems that the existing tunnel construction curvature is small, the space of a starting well is insufficient, the slurry pipeline is difficult to extend under the condition that integral starting is needed, and the requirement that the slurry pipeline is located on the same side under multiple construction intervals is not met. The mud pipeline extending system comprises a mud pipeline extending device arranged at a wellhead of a starting well and a mud pipeline supporting device laid in a tunneling tunnel. The slurry pipeline extending device is arranged at the initial end of the slurry pipeline supporting device, and the slurry pipeline supporting device bears a slurry pipe to synchronously move along with the shield tunneling machine. The slurry pipeline supporting device can be matched with the slurry pipeline extending devices in the tunneling tunnel in multiple directions to complete multi-interval slurry pipeline extension with the position of the starting well as the center of a fixed point. The mud pipeline extending device is arranged at the starting well mouth, the total length of a trailer is reduced, and the overall starting requirement of the extremely small starting well is met by fully utilizing the tunnel space.

The invention relates to the field of building materials, in particular to a template-free multi-layer composite structure self-heat-preservation sound-insulation light inner wall which comprises a light foam concrete layer, a heat-preservation sound-insulation layer, a waterproof layer and a decorative layer. The light foam concrete layer is composed of cement, fly ash, hydrogen peroxide, polyphenyl particles, glass fibers, crushed crude pearlite, vermiculite powder, calcium stearate, expanded graphite, magnesium aluminum hydroxide, magnesium calcium lignosulphonate, ammonium molybdate pentaerythritol ester and titanate melamine salt. According to the contrast test, the construction efficiency, the light weight effect, the heat preservation performance, the sound insulation performance, the waterproof performance and the like of the building interior wall are remarkably superior to those of a traditional interior wall technology, and the building interior wall has wide application prospects and market value.

The invention relates to a construction method of a waterproof structure for a crack between a masonry structure outer wall and a frame beam, which comprises the following steps of: (1) constructing a concrete frame structure, fixing an embedded section of a waterproof thin plate on a beam steel bar by welding and binding during frame beam construction, arranging a square wood box to be tightly attached to the waterproof thin plate, and then pouring frame beam concrete; (2) constructing a firstly-built part of the outer wall masonry structure, and building a later-built part after the firstly-built part settles, shrinks and stabilizes; (3) removing a square wood box preset in the frame beam, and stripping and exposing the waterproof thin plate at the embedded section; (4) covering a crack area between the outer wall and the frame beam with a waterproof thin plate extension section, wherein the waterproof thin plate extension section is connected with the waterproof thin plate of the embedded section through screws; (5) the grooves in the waterproof thin plate section area are blocked through grouting materials; and (6) a net hanging mortar layer and an outer wall decoration layer are sequentially constructed according to construction procedures. The water leakage problem of the outer wall settlement crack can be effectively prevented, and the waterproof performance and durability of a building are improved.

The utility model relates to a steel support stress conversion device. A traditional construction method is tedious in construction procedure, poor in waterproof effect of a post-pouring part, high in construction risk and long in construction period. The device comprises a stress conversion mechanism, the stress conversion mechanism is arranged on a station structure top plate and a station structure middle plate, an air flue steel support is connected to the stress conversion mechanism, and the other end of the air flue steel support is connected with an auxiliary fender post; the stress conversion mechanism comprises a first supporting base and a second supporting base, the first supporting base is arranged on a top plate of a station structure, the second supporting base is arranged on a middle plate of the station structure, the air duct steel support comprises a first steel pipe support and a second steel pipe support, the first steel pipe support is connected to the first supporting base, and the second steel pipe support is connected to the second supporting base. The second steel pipe support is connected to the second supporting base. Only one-time pouring is needed, the construction procedure is simple, construction is safe, and the construction period is short.

The invention relates to the field of wharf construction, and particularly discloses a wharf bottom pile detection method based on multi-beam scanning and a BIM technology, and the method comprises the following steps: S1, installing and debugging data collection equipment which comprises an underwater three-dimensional sonar multi-beam measurement system and an unmanned ship matched with a high-precision inertial navigation system; s2, acquiring three-dimensional point cloud data of the underwater structure of the wharf by using a multi-beam sonar system, and performing data correction; s3, splicing, noise reduction and three-dimensional output processing are conducted on the collected wharf pile foundation data; s4, establishing a Revit model of the underwater pile foundation based on a building information model (BIM) technology; and S5, pile collision checking calculation is conducted on the basis of the Revit model of the underwater pile foundation, and the position of the pile foundation is adjusted and optimized till pile collision detection can be passed. The method has the advantages of being accurate in evaluation and high in checking calculation efficiency.