48results about How to "Increase construction costs" patented technology

The invention relates to a low-temperature liquid medium storage container and a construction and arrangement method of a metal film on the inner wall of the low-temperature liquid medium storage container, and belongs to the technical field of low-temperature liquid medium storage. The structure of the metal film comprises a top surface film, a right side surface film, a bottom surface film, a left side surface film, four transition surface films, a front surface film and a back surface film which are respectively arranged on the top surface, the right side surface, the bottom surface, the left side surface, four transition surfaces, the front surface and the back surface of the annular side surface of the low-temperature liquid medium storage container, the top surface film, the right side surface film, the bottom surface film and the left side surface film are respectively connected with the four transition surface films to form an annular side surface film; and the front film and the back film are connected through the annular side film to form a totally-closed three-dimensional film.

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 vibration isolation structure comprises a vibration isolation body and vibration isolation layers arranged on the two sides of the vibration isolation body, each vibration isolation layer is of a porous structure, the vibration isolation layers are arranged between the vibration isolation body and surrounding rock, and the thickness of each vibration isolation layer ranges from 5 cm to 10 cm. According to the design, when fluctuation enters the porous structure, pores in the vibration isolation layer can generate multiple scattering and reflection on incident waves, the scattering and reflection processes prolong the propagation path of the fluctuation, increase the interaction time between the fluctuation and the interior of the material, guide the fluctuation energy to be dissipated in the vibration isolation structure, and further reduce the impact on the surrounding environment; by absorbing and dispersing fluctuation energy, the vibration isolation structure remarkably reduces transmission of vibration waves to surrounding buildings, and therefore potential damage to the buildings is reduced.

The utility model belongs to the technical field of gas turbine power plants, and particularly relates to an in-plant electric power system of a gas turbine power plant, which comprises a gas turbine generator, a high-voltage plant transformer, a plant high-voltage loop, a connecting bus, an energy storage bus section and an energy storage unit. The gas turbine generator is connected with the high-voltage side of the high-voltage plant transformer, the low-voltage side of the high-voltage plant transformer is connected with the plant high-voltage loop, the connecting bus is connected between the plant high-voltage loop and the energy storage bus section, and the energy storage unit is connected with the energy storage bus section; the energy storage unit is used for storing surplus electric energy in the energy storage bus section, the energy storage unit and the station service high-voltage loop are used for supplying power to a station service electric load and a black-start load of the gas turbine power plant, and the energy storage unit is further used for auxiliary frequency modulation of the gas turbine power plant; the in-plant electric power system of the gas turbine power plant does not need to be externally connected with a standby electric power circuit, topological optimization of an AGC auxiliary frequency modulation system, an auxiliary power system and a black start system is achieved, the construction cost is reduced, and the energy efficiency level is improved.

The invention belongs to the technical field of light control, and provides an energy-saving control method and system for light in a construction area. The method comprises the following steps: acquiring first scene data of a construction area, and determining a scene type of the construction area according to the first scene data; acquiring second scene data of the construction area, and determining a construction fineness level of the construction area according to the second scene data; and according to the scene type and the construction fineness level, determining and obtaining target illumination brightness, and according to the target illumination brightness and the real-time illumination brightness, determining and obtaining an energy-saving regulation and control scheme of the illumination lamp. According to the method, the scene type and the construction fineness level of the construction area are deeply analyzed, the target illumination brightness of the lamp in the construction area is obtained, the brightness of the lamp is regulated according to the target illumination brightness, and therefore the purpose of effectively reducing energy consumption under the condition that the construction illumination requirement is met is achieved; and the construction cost of a construction enterprise can be improved to a certain extent.

The application discloses a method for vibrating and sinking a pile pipe of a gravel pile, and comprises the following steps: step one, using a vibration hammer on a gravel pile ship to sink the pile pipe into the soil; step two, when the bottom of the pile pipe meets the soil with a larger compactness, and the vibration hammer cannot continue to sink the pile pipe to the design elevation even after reaching the maximum power of the equipment, calculating the additional vibration mass F 额 , that is, calculating the weight of the gravel to be filled into the pile pipe in advance; step three, filling the gravel with the weight of the additional vibration mass F 额 into the pile pipe; step four, continuing to use the vibration hammer to sink the pile pipe until the pile pipe is sunk to the design bottom elevation; and step five, adding the remaining gravel M 桩管 -F 额 into the pile pipe, and then performing a subsequent pipe pulling process. The gravel filled into the pile pipe in advance increases the vibration mass, so that the purpose of improving the penetration of the pile pipe in the pile sinking process is achieved.

The invention belongs to the field of high-burial-depth underground space safety early warning and protection, and discloses a construction method and system for judging and distinguishing double-track tunnel micro-seismic parameter quantitative early warning rockburst grades, and the method comprises the steps: designing a micro-seismic monitoring system sensor arrangement method; wave velocity setting; judging the reliability of the monitoring effect of the same monitoring system on the double-track tunnel; comparing geological revelation conditions of the tunnel faces in the similar mileage sections of the double-track tunnel; determining rockburst grade classification and quantitative judgment criteria; distinguishing and establishing quantitative criteria of high-precision rockburst of each grade of the double-track tunnel; judging whether to distinguish and establish a rockburst early warning judgment standard; unifying tunnel early warning discrimination standard establishment methods; the reliability of the method is judged according to the occurrence condition of subsequent rockburst, and meanwhile the threshold value is perfected. According to the invention, two sections can be monitored at the same time through a set of microseismic monitoring system, so that half of manpower, material and financial investment is saved. The blank of establishing a quantitative criterion method for distinguishing micro-seismic monitoring and early-warning rockburst of the double-track tunnel under similar geological conditions in the same work area is filled, and the method has high practical value.

The utility model relates to a kind of hoisting construction platform for pipe jacking construction, including support frame, work platform, truss car frame, truss car beam, electric hoist lifting device and counterweight;Work platform is horizontally fixed at the top of support frame, and the edge of work platform is fixed with multiple groups of lifting rings;Truss car frame is fixed and erected at the front and rear ends of support frame, and the front and rear two groups of truss car frames are jointly erected with a truss car beam, the truss car beam is located at the middle of support frame, and the front and rear ends of truss car beam respectively extend out work platform towards front and rear direction;The front end of truss car beam is provided with electric hoist lifting device, and the rear end of truss car beam is provided with counterweight.Overall hoisting can be carried out on work platform by crane, pre-assembling outside construction site can be realized, the limitation of platform erection at construction site is avoided, temporary erection and removal are not needed on site, deployment efficiency and structural stability are significantly improved, and good turnover performance is obtained.

The invention belongs to the field of management systems, and discloses a commodity purchasing management system which comprises an office computer, a smart phone and a cloud server. The smart phone is used for acquiring positioning information and biological characteristic information of a user and transmitting the information to the cloud server; the cloud server is used for generating an equipment identification code according to the positioning information and the biological characteristic information and sending the equipment identification code to the smart phone; the office computer is used for acquiring a login instruction of a user and sending the login instruction to the smart phone after receiving the login instruction; the smart phone is used for sending an equipment identification code to the office computer after receiving the login instruction; the office computer is used for sending the equipment identification code to the cloud server; the cloud server is used for returning an identity token to the office computer according to the equipment identification code sent by the office computer; and the office computer is used for communicating with the cloud server through the identity token. According to the invention, the security of the commodity purchasing management system is improved.

The invention provides a construction method for manufacturing and connecting fabricated concrete members, which comprises the following steps of: at the joint of a foundation member and a newly-added member, adopting reinforcing measures for steel bar connection, adopting welding connection, and adopting grouting material filling connection for concrete. The method has the advantages of shortening the construction period, saving the construction cost and improving the connection strength of the prefabricated parts.

The invention relates to the technical field of GRP pipelines, in particular to a GRP pipeline connection method which comprises the following steps: firstly, judging the connection type of the GRP pipelines, and if the connection is straight pipe section connection of the GRP pipelines, adopting a socket and spigot joint type connection method; if the bent pipe sections of the GRP pipeline are connected, a winding type connecting method is adopted; if the GRP pipeline is connected with the water pump and the valve, a flange connection method is adopted. According to the GRP pipeline connecting method, the construction flexibility is improved, the construction period is shortened, the cost is reduced, meanwhile, the structure of a pipeline system is simplified, the GRP pipeline connecting method is particularly suitable for complex working conditions of large-diameter and large-weight GRP pipelines, and the problems that a traditional single connecting method is long in construction time consumption or large in cost consumption, high in labor cost consumption and the like are solved.

The utility model discloses a rapid installation device suitable for triangular hanging basket web steel bars. Comprising an electric hoist and a lifting hook body, and the lifting hook body is provided with a framework, a lifting hook end, reverse buckling wheels, a movable connecting end and a bottom plate; the framework and the bottom plate are welded into a whole, reverse buckling wheels are arranged on the two sides of the bottom plate, the lifting hook body is connected with the bottom of the front end of a triangular hanging basket main beam through the reverse buckling wheels, two sets of movable connecting ends are arranged in the middle of the bottom plate and used for being connected with an electric hoist through steel ropes, and an upwarp lifting hook end is formed at the front end of the framework. The problems that in the triangular hanging basket, web reinforcing steel bars conflict with a main beam in the hoisting and installing process are mainly solved, one-time in-place and rapid installation of the web reinforcing steel bars are achieved, and the working efficiency is improved are mainly solved.

This invention discloses a method for underwater high-pressure jet grouting for sealing water in rock-embedded cofferdams. The method involves first driving a large-diameter steel casing, drilling holes to the bottom of the cofferdam using a rotary drilling rig, filling the holes with sand, removing the large-diameter steel casing, and then driving small-diameter interlocking steel pipe piles. High-pressure jet grouting is then applied to the outside of the interlocking steel pipe piles for curing. This process further enhances the water-stopping performance of the sand body through the grout, and the two components blend together to form a strong water-stopping curtain, effectively improving the bearing capacity of the cofferdam foundation and the water-stopping effect. This method avoids the difficulty of ensuring effectiveness with traditional underwater concrete sealing and eliminates the need for expensive concrete, thus saving significant construction costs.

The invention discloses an anchor cable failure state circuit monitoring device, and belongs to the technical field of geotechnical engineering.The anchor cable failure state circuit monitoring device comprises an embedded circuit and a signal monitoring system, the embedded circuit comprises a shell, a signal transmission point, a magnetic fixing point, an input line and an output line, and the shape of the shell is set according to the shape of an anchor cable to be detected; the shell is arranged on the outer side of the anchor cable to be detected, an opening is formed in the position, at a concrete pier pad of the anchor cable to be detected, of the shell, the input line penetrates through the opening to be connected with the shell, and the output line penetrates through the opening to be connected with the end, exposed out of the earth surface, of the anchor cable. According to the anchor cable failure state circuit monitoring device, input and output detection signals are compared, the evolution law of the detection signals along with time is described, information can be obtained in time before anchor cable failure, and the types of most anchor cable failure conditions can be obtained through the device.

The present application relates to the technical field of shield construction, particularly to a slurry shield cutterhead mud cake digestion system based on ultrasonic waves, comprising an ultrasonic transducer assembly, a power module and a driving assembly, a plurality of ultrasonic transducer assemblies are respectively fixed at openings of cutterhead panels, each of the ultrasonic transducer assemblies comprises a protective shell cover and an ultrasonic transducer, a line protection tube is connected to the top of the protective shell cover, a waterproof joint is arranged in the protective shell cover and is plugged on a plug of the ultrasonic transducer, a connecting line is arranged in the line protection tube and extends into the protective shell and is connected to the waterproof joint. The cavitation effect of ultrasonic waves on the cutterhead mud cake in the circulating slurry is used to digest and peel off the cutterhead mud cake layer by layer, so that the cutterhead mud cake is removed.

The present invention relates to a split transposition device for a double-circuit pole tower and an installation method thereof, comprising a main tower, wherein the main tower is provided with an upper cross arm, a middle cross arm and a lower cross arm, a middle phase-to-upper phase jumper is provided between the upper cross arm and the middle cross arm located at the same side end, a lower phase-to-middle phase jumper is provided between the middle cross arm and the lower cross arm located at the same side end, auxiliary towers are provided on both sides of the main tower, the auxiliary tower is provided with an upper cross arm and a lower cross arm near the main tower side, and an upper phase-to-lower phase jumper is provided between the upper cross arm and the lower cross arm. The device has simple wiring and controllable jumper gap; it reduces the height of the iron tower or the length of the cross arm, thereby reducing the torque and bending moment of the ground wire on the iron tower, improving the stress condition of the iron tower, and improving the reliability of the iron tower.

The utility model discloses a polyline large-span exquisite steel glass curtain wall, including the back steel embedded plate, the back steel embedded plate is fixed on the building wall, the back steel embedded plate is welded with rectangular steel pipe through fixed connection frame, constitutes the support frame body structure, installs fixed steel pipe on the rectangular steel pipe, the utility model relates to glass curtain wall technical field, the beneficial effect of the case is: the existing glass curtain wall is mostly to adopt simple frame body type mounting structure, when the large-span curtain wall installation is carried out, the structural stability is poor, needs to use a large number of connecting components and installs fixed, not only will increase the construction cost, still can influence the use space and the aesthetic degree in the building interior, and the traditional glass curtain wall is single on the modelling, mostly is linear type design, is difficult to satisfy the pursuit of the modern building to the individualization, the unique appearance problem.

The invention discloses a shield tail brush rapid replacement method suitable for long-distance tunneling of a super-large-diameter shield. An adopted shield tail sealing device comprises a plurality of common shield tail brushes distributed at intervals in the shield direction, and the shield tail sealing device further comprises a standby shield tail brush; the quick replacement method for the shield tail brush comprises the following steps: S1, reserving a mounting station of a standby shield tail brush; and S2, a shield tail brush for equipment is additionally arranged, and a common shield tail brush is replaced. On one hand, the reserved mounting station for the standby shield tail brush is arranged at the shield tail, rapid sealing is achieved through the shield tail brush for equipment after leakage occurs, rapid replacement of the abraded common shield tail brush is achieved on the basis that the standby shield tail brush and other common shield tail brushes bear water pressure, operation is easy and convenient, and the safety coefficient is high; on the other hand, a large amount of preparatory work is saved, the construction period is short, cost is low, and the requirement for replacing the shield tail brush during long-distance tunneling of a super-large-diameter shield is met.

The invention provides a construction method of a pipe jacking machine in a narrow space, the pipe jacking machine comprises a split type pipe jacking machine composed of a plurality of shield bodies, and each shield body is formed by combining an upper shield body and a lower shield body which are oppositely arranged up and down. The split type pipe jacking machine is split into a plurality of units, hoisting work of the split type pipe jacking machine can be conveniently completed in a narrow space, meanwhile, through a pushing installation mode, installation and jacking construction can be combined, and therefore the construction period is effectively shortened, and the construction efficiency is improved. In addition, according to the method, the situation that in a traditional method, constructors conduct tunnel portal breaking construction operation in a crack between the tunnel portal and a pipe jacking machine is avoided, safety is effectively improved, after tunnel portal breaking is completed, the first shield body is jacked into the tunnel portal, beneficial support is formed, the collapse condition of the tunnel portal can be avoided, and in addition, the construction efficiency is improved. Due to the structure of the split type pipe jacking machine, the size of each part is smaller, the pipe jacking machine can be conveniently hoisted in a narrow receiving well, and the hoisting posture can be conveniently adjusted.

The invention provides a bridge erecting machine with a single-line and double-line bridging function and a single-line and double-line bridging method. The bridge erecting machine with the single-line and double-line bridge erecting function comprises a machine arm, a first column, a second column and a third column, wherein the first column, the second column and the third column are arranged in the longitudinal direction of the machine arm and used for supporting the machine arm to move. The column II comprises two groups of first walking parts supported on a bridge floor, two groups of first double-line mounting parts and two groups of first single-line mounting parts positioned between the two groups of first double-line mounting parts; the third column comprises two sets of second walking parts used for being supported on the bridge floor, two sets of second double-line installation parts and two sets of second single-line installation parts located between the two sets of second double-line installation parts. When the bridge girder erection machine is switched from double-line box girder erection to single-line box girder erection, each group of first walking parts is switched from the first double-line mounting part to the first single-line mounting part, and each group of second walking parts is switched from the second double-line mounting part to the second single-line mounting part, so that the bridge girder erection machine can adapt to various types of box girders.

The invention provides a load adjusting method for a hoisting working condition of a wind power installation vessel. The load adjusting method comprises the following steps: calculating a load adjusting value; first total pressure on each pile leg is obtained through calculation; according to the difference value between the first total pressures on the four pile legs, a load adjustment value Wt is obtained through calculation; the load adjustment value Wt meets the following conditions: after the first pile leg group actively bears the load adjustment value and the weight borne by the second pile leg group is reduced by the load adjustment value, the second total pressure after the pile legs corresponding to the pile-winding crane are adjusted is close to the second total pressure of the other three pile legs, and the two pile legs distributed diagonally form one pile leg group; the pile winding crane is arranged on one pile leg of the second pile leg group; load adjustment operation; pre-ballasting operation is conducted through diagonal pre-ballasting, and after the pre-ballasting operation is completed, the ship body is lifted to the preset operation height; and the second pile leg group is kept still, so that the first pile leg group actively bears the load adjustment value Wt, and the weight borne by the second pile leg group is reduced by the load adjustment value Wt.

The utility model relates to a photovoltaic energy-saving type water purifying device which comprises a photovoltaic assembly and an annular device body, the bottom of the device body is sealed, a plurality of through holes are formed in the periphery of the device body, the device body comprises a circulation area and a filling area which are arranged from inside to outside, a water pump is arranged in the circulation area and communicated with a sewage pool through a drainage pipe, and the drainage pipe is communicated with the sewage pool. Sewage is filtered through the ceramic ring packing layer, the polyurethane packing layer and the brush layer, so that the purpose of purifying water is achieved, the ceramic ring packing layer, the polyurethane packing layer and the brush layer are all common sewage filtering materials and are low in cost, and the photovoltaic module can provide electric energy required by sewage treatment, so that the energy-saving and environment-friendly effects are achieved. Therefore, the sewage treatment device is low in construction cost and operation cost, is suitable for common farmers, does not need chemical medicines to treat sewage, avoids the increase of construction cost and operation cost caused by the use of chemical medicines, and reduces the negative influence of chemical medicines on the environment at the same time.

The invention relates to the technical field of fabricated buildings, in particular to a connection-enhanced fabricated modular house and a construction method. The modular house is composed of prefabricated modules, specifically, prefabricated integrated beam plates, prefabricated T-shaped pilasts and prefabricated L-shaped pilasts, the joints of the adjacent prefabricated integrated beam plates are in lap joint through U-shaped ribs exposed out of the side faces of beams, and concrete is poured into the prefabricated modules to form a whole; the bottom of the prefabricated pilaster is in dry connection with a vertical connecting rib extending out of a component below through a box type connecting piece, the top of the prefabricated pilaster is connected with the prefabricated integrated beam plate on the upper portion through a grouting sleeve by adopting an inverted vertical connecting rib, and the modules can form a single-layer or multi-layer anti-seismic house structure through splicing and reinforced connection. The structure is reasonable, connection is reliable, the standardization degree is high, and the site construction speed can be greatly increased; by enhancing the connection between the modules, the integrity of the modular house can be greatly improved, and the anti-seismic performance and the structural safety of the house can be guaranteed.

The invention provides a power distribution network multi-stage extension planning method and device considering carbon emission reduction, and relates to the technical field of power distribution network planing.The method comprises the steps that firstly, a carbon quota quantitative model is constructed by applying an exponential function with reference to the node load of the initial stage and the capacity of a transformer substation, so that volatility characteristics in the carbon emission reduction process are effectively reflected; then processing the constraint of the radial topology of the power distribution network by using a method of combining incremental ring detection and depth-first search, and ensuring that the planning process can adapt to the actual demand of multi-stage expansion through a broken line ring opening thought; and then, taking minimization of the sum of the construction cost, the operation cost and the carbon cost of the power distribution network in the planning period as an objective function to construct a multi-stage expansion planning model and carrying out solving. And the method is verified based on a planning example of the 24-node power distribution network. According to the method, the multi-stage extension planning model containing the carbon emission cost can be constructed, and a reference scheme is provided for realizing efficient and reliable operation of the power distribution network.

An anti-vandalism mounting system for monitoring water physical variables in open channels, which comprises: a first member, comprising a base with a plurality of perforations to introduce a plurality of anchoring means for fixing the first member to a system installation surface; a second member, which is fixed on the first member of the system by a plurality of anchoring means; a third member, arranged externally, which is attached to the first and second members from inside the system by anchoring means; and a fourth member, pivotally arranged in the lower part of the third member; wherein the first member comprises a plurality of compartments to house a plurality of devices for the operation of the system and for the monitoring of physical variables to be protected by the system; and wherein the system comprises an energy generating device and a plurality of safety devices, so that the fourth member is fixed to the third member of the system. A procedure for assembling an anti-vandalism mounting system for monitoring water physical variables in open channels.

The application provides a supporting and mining method compatible with caving method and filling method mining process, which comprises a coal mining machine, a conveyor, a dual-purpose filling support, a special end support, a transfer machine, a gangue blocking support and a unit support, the dual-purpose filling support is arranged into an end filling support and a middle filling support, along the mining length, and is divided into a caving section and a filling section according to the mining requirement; when being in the caving section, the state of the dual-purpose filling support and the special end support is changed, and the caving method is used for construction; when being in the filling section, the state of the dual-purpose filling support and the special end support is changed again, and the filling method is used for construction, and the corresponding filling blocking structure is arranged in the gob-side entry retaining, the method can be compatible with two kinds of coal mining conditions, and the equipment does not need to be replaced halfway.

The invention relates to the technical field of fused salt heat energy storage, in particular to a single-tank integrated fused salt heat storage system which comprises a tank body, a confluence outlet is formed in the tank body, the interior of the tank body is divided into a plurality of heating subareas in the circumferential direction, and heat exchange pipe sets are arranged in the heating subareas and used for fluid circulation. A traditional fused salt storage tank needs to be provided with accessories such as electric heat tracing, and construction and operation cost is high; on the basis of a traditional integrated heat storage device, a molten salt heat exchange pipeline is reasonably arranged, an external heat source is used for dissolving salt, input of electric heat tracing equipment is avoided, uniform melting of the molten salt in the storage tank is achieved, and the storage tank is high in heat exchange efficiency and low in energy consumption. And the heat utilization efficiency and the overall economical efficiency are improved.

The invention discloses a tunnel folding type lagging jack and a using method, and relates to the technical field of underground engineering, the tunnel folding type lagging jack comprises a lagging jack I, a lagging jack II, a spacing control screw rod and a spacing adjusting handle, the spacing adjusting handle is connected with a plurality of round holes formed in the top end of the lagging jack II, and the round holes are evenly distributed in the lagging jack II and the lagging jack I; and a plurality of spacing adjusting screw rods are connected between the arch frame I and the arch frame II. According to the tunnel folding type arch frame of the structure, the uniformity of the arch frame distance and the construction safety can be achieved, the supporting effect of a whole primary supporting structure is guaranteed, meanwhile, the supporting strength between the arch frames is improved through the distance adjusting screw rods, and the tunnel folding type arch frame has important significance for improving the arch frame construction safety and guaranteeing the construction quality.