38results about How to "Reduce construction work costs" patented technology

The invention discloses a novel box type transformer station. The novel box type transformer station at least comprises a high-voltage switch chamber, a low-voltage switch chamber and a transformer chamber, wherein the high-voltage switch chamber, the low-voltage switch chamber and the transformer chamber are in echelonment distribution, and equipment lines in the high-voltage switch chamber, the low-voltage switch chamber and the transformer chamber are M-shaped, U-shaped or V-shaped. Different from the prior art, the novel box-type transformer station enables the volume of the box type transformer station to be reduced by 1 to 3 times compared to a conventional transformer station through innovative adoption of an upper-lower multilayer distribution structure, reduces the area of occupied land, facilitates transportation and decreases the transport cost; and a downward pedestal of the conventional box type transformer station does not have to be manufactured, such that the difficulty of a construction project is reduced, the cost is decreased, and unfavorable influences brought by moisture in the half-embedded pedestal to each device in the box type transformer station can be better avoided.

The invention provides a low-friction clean fracturing fluid for coalbed methane, comprising the following components: by mass percentage, 0.1-0.5% octadecyl glyceryl dimethyl ammonium chloride, 0.1-0.2 % sodium dibutylnaphthalene sulfonate, 0.2-0.3% potassium chloride and 90.0-96.0% water. The fracturing fluid has a simple preparation method, low viscosity, low friction, no gel breaking, and can be reused, which reduces construction operation costs, low friction, and reduces construction pressure. It is a clean and environmentally friendly fracturing fluid that can be used Achieve large displacement (10m ³ /min) above volume fracturing construction to improve the effect of coal seam stimulation.

The invention provides a project template engineering management system based on a building information model. The system comprises a network server which is used for storing and sending data information, a central control computer which is connected with the network server, and branch computers which are connected with the network server. The use method of the management system comprises the steps that a basic project document is collected, and the central control computer carries out basic model creation by relying on BIM software; the basic building information of a template project is collected, and the central control computer creates a template project information model by relying on BIM software; model safety stress calculation is carried out to generate a template project construction management file, and the file is uploaded to the network server; and each branch computer accesses the network server to view the template project construction management file, so that related personnel can inspect the file and guide on-site construction. The management system can visually and accurately understand the layout of the template before on-site template project construction, whichreduces the construction cost and improves the project management level.

The invention discloses a construction method for pore forming in an artificial rockfill layer. The construction method includes the steps that superficial-layer dimension stones are screened and removed through an excavator at a position of a pile position, cohesive soil is backfilled and compacted, and then steel plates are laid; a protection cylinder is embedded, and the center of the protection cylinder is coincided with the center of the pile position; according to the diameter of the dimension stones and the layer thickness of the rockfill layer, a rotary drilling rig and a punching drilling rig are used and are positioned on the laid steel plates for conducting pore-forming construction, and meanwhile slurry with the certain relative density is prepared for grouting pore forming; after pore forming, the pore depth is measured and inspected through a measuring line, and after verification, pores are cleaned. By means of the construction method for pore forming in the artificial rockfill layer, the aim that pore forming construction of the cast-in-place pile is conducted is achieved, normal operating of construction operation is guaranteed, the cost of the construction operation is reduced, and the efficiency of the construction operation is improved.

The invention discloses a slurry shield split launching construction method for a water-rich sandy gravel stratum. The method comprises the following steps that A, a tunnel portal is sealed to build abin, grease is smeared on a tunnel portal brush, the tunnel portal is broken, a shield cutter head is jacked into a tunnel face, the grease is injected into a short sleeve and a muddy water bin, mudis injected into the muddy water bin, and the pressure is gradually increased to calculated incision pressure; B, shield tunneling and trolley transfer construction are conducted, a trolley is arranged before shield launching, the trolley is straightened, the tunnel portal is sealed, and the trolley is lowered into a well; and C, secondary switching of the trolley is conducted, outage and pressuremaintaining are conducted, slurry with the viscosity of 35-50s and the density of 1.1-1.3g/cm<3> is used, and permeation is conducted on the tunnel face in a large circulation mode; and slurry with the viscosity of 90-120s is injected into the muddy water bin from a central rotation standby uppermost flushing pipeline to replace the slurry in the muddy water bin, and the pressure of the muddy water bin is maintained. The method has the beneficial effects that the process is reasonable, the stability of the tunnel face of the water-rich sandy gravel stratum is guaranteed under the condition ofoutage, the high efficiency of slurry shield split launching is realized, and the cost is reduced.

The invention discloses a box-type substation. The box-type substation at least comprises a high-voltage switchgear chamber, a low-voltage switchgear chamber and a transformer chamber, which are distributed in the shape of steps, wherein equipment circuits in the high-voltage switchgear chamber, the low-voltage switchgear chamber and the transformer chamber are M-shaped, U-shaped or V-shaped. The box-type substation is different from the prior art on the aspect that a structure that a plurality of layers are distributed up and down is creatively adopted, so that the size of the box-type substation is 1 to 3 times smaller than that of the traditional substation, the occupation area is reduced, the box-type substation is convenient to transport, and the transportation cost is reduced; a downward foundation of the traditional box-type substation is not required to be manufactured, the difficulty for constructing a project is reduced, the cost is reduced, and adverse influence to each piece of equipment in the box-type substation by humidity in the semi-buried foundation can be better avoided.

The invention relates to a bending anchor cable pressure top beam, which includes a cable body, a beam, an anchor cable guide plate, a friction fastening device and a tray. The fastening device is connected to the lower end surface of the beam, and the upper end surface of the beam and the cable body are connected to each other through the tray and the cable body. The friction fastening device includes a load-bearing base plate, a pressure plate, a guide groove and a pressure regulating bolt; the construction method includes anchoring the cable body, installing Channel steel and pallets and fastening in stages. On the one hand, the present invention can effectively improve the load-bearing and positioning operation capacity of the rock formation at the top of the roadway, has strong bearing capacity, constant bearing capacity and stable output of bearing capacity; , automatically adjust the positioning structure of the equipment, so as to effectively improve the stability and reliability of the positioning equipment while improving the bearing positioning capacity of the roadway.

The invention provides a water gushing sand breaking disturbance deep loose stratum ground grouting hole-forming method. The method comprises the following steps that S1, the stratum is divided into three sections, wherein the three sections are respectively a conventional section, a stratum alternate section and a water gushing sand breaking section; S2, levelness correction and cement table pouring are carried out on a drilling tower, a drilling machine is installed, and levelness and verticality of the drilling machine are calibrated; S3, a drilling tool is improved, a pagoda type drillingtool consisting of multiple stages of sleeves is used for combined drilling, and the ways of sleeve ring sleeving and multi-stage hole shrinkage are used for drilling and hole protection; S4, the three sections of stratum in step S1 are drilled layer by layer to form a drilled hole; and S5, the fracture condition and the cementing characteristic of the drilled hole formed in the step S4 are detected, and the drilled hole is cleaned. Normal treatment and repair of a vertical shaft of a coal mine are ensured, the construction operation efficiency is improved, and the construction operation costis reduced.

The invention discloses a drilling tool for a down-hole string. A piston of the drilling tool for the down-hole string is located at the upper portion of a main body in a sealed mode in the axial direction by a shear pin; the upper portion of a cone and a concave platform inside the main body are sealed slidably in the axial direction; a drilling block is fixed on the lower portion of the main body by a pin; the main body, the piston, and the cone form a sealed cavity; the main body is provided with a pressure guiding hole and a drilling hole block groove, a bearing working face of the lower portion of the cone is of a wedge-shaped body or a conical structure, and the drilling block rotates in the axial direction when the pin moves in the radial direction of the main body; and the pin is mounted in the axial direction, and the drilling block can rotate in the radical direction. After the drilling tool for the down-hole string is put into the string or the drilling tool for the down-hole string is downwards placed into the down-hole string by a certain depth adopting cable and steel wire operation and coiled tubing operation, drilling or cutting on the down-hole string can be achieved through pressurization in the down-hole string; compared with the cable operation and the coiled tubing operation, construction is simple and safe, operating cost of the construction is reduced, and the drilling tool for the down-hole string is a breakthrough in drilling or cutting of the down-hole string.

The invention relates to an oil well matching device, in particular to a sand washing drilling and milling integrated device for workover operations in an oil field. According to the technical schemeof the invention, the sand washing drilling and milling integrated device for the workover operations in the oil field comprises an upper support body assembly, a turbine assembly(turbine assemblies),a lower support body assembly, multiple connecting cylinders and a sand washing drill bit; the turbine assembly is arranged by one or more; the upper support body assembly, the turbine assembly(turbine assemblies) and the lower support body assembly are sequentially connected into a whole by the multiple connecting cylinders; the upper support body assembly is connected with the lower end of a drill pipe or oil pipe; and the sand washing drill bit is installed at the lower end of the lower support body assembly. The sand washing drilling and milling integrated device for the workover operations in the oil field provided by the invention not only has rotary drilling and milling functions of a turbodrill, but also can realize two functions of direct circulation sand washing and reverse circulation sand washing; and one-time pipe string construction operation can complete sand washing drilling and milling operations of an oil well, thereby speeding up the construction progress, and reducing the construction operation cost.

The invention discloses a pipeline spraying device for air conditioner production. The pipeline spraying device for air conditioner production comprises a supporting frame, a conveying assembly is arranged on the supporting frame and comprises a plurality of conveying rollers connected with the supporting frame, the conveying rollers are in transmission connection with two conveying belts, the supporting frame is connected with a clamping control conveying mechanism, and the clamping control conveying mechanism comprises a first motor fixedly connected with the supporting frame; the first motor is connected with a first cam through a first rotary shaft, a connecting frame connected through a first rotating shaft is arranged above the first cam, the upper right end of the connecting frame is connected with an upper limiting plate, the lower end of the upper limiting plate is connected with an upper dividing strip, the upper limiting plate is located above the conveying assembly, the lower right end of the connecting frame is connected with a lower limiting plate, and the upper end of the lower limiting plate is connected with a lower dividing strip; and the lower limiting plate is located below the conveying assembly, a spraying nozzle is arranged above the conveying assembly, and the spraying nozzle is located between the lower limiting plate and the upper limiting plate. By means of the pipeline spraying device, spraying and transporting of pipelines can be achieved conveniently, and collision between the sprayed pipelines is reduced.

The invention provides a method for checking leakage of an abalone culture platform. The method comprises the steps of integrally hoisting the whole abalone culture platform by using a floating crane;soaking a part to be checked in water; and after a specified time is up, enabling check personnel to enter cabins through channels in the platform to perform cabin leakage check. According to the method, the problems of low efficiency and water resource waste in the prior art can be effectively solved.

The invention relates to the field of building construction, in particular to a reinforcement cage feeding method of a long auger drilling press-grouting pile. The reinforcement cage feeding method of the long auger drilling press-grouting pile is characterized by comprising the following steps that 1, a pushing device is manufactured according to hole diameters, and the pushing device comprises a plurality of vertical rods and a plurality of hoops which surround the vertical rods to form cage-shaped columns; 2, concrete is poured into a pile hole to reach a standard height; 3, a reinforcement cage is inserted into the pile hole; 4, the cage-shaped columns are lifted, and the bottoms of the cage-shaped columns align to and abut against the tail end of the reinforcement cage; 5, a vibrating tamper is started to convey the reinforcement cage to the designed standard height position of a pile bottom through the cage-shaped columns; and 6, the device and the vibrating tamper are together lifted out of the pile hole. According to the reinforcement cage feeding method, the adopted cage-shaped columns are easy to manufacture and convenient to use so as to effectively accelerate the feeding operation of the reinforcement cage, and the cage-shaped columns can be recycled and reused, so that the cost of construction operation is lowered, and the operation efficiency is improved.

The invention relates to a multipurpose excavating and cleaning machine which is composed of a wheel type chassis, a garbage compressing and storing bin and a supporting structure. An excavation cleaner is arranged at the front end of the machine and is of a transverse drum-type structure; the two ends of the excavation cleaner are fixed to a supporting structure through garbage drainage pipes; and the excavation cleaner is communicated with the interior of a garbage feeding hole. Along with forward pushing of the wheel type chassis, the roller of the excavation cleaner rotates, accumulated snow or garbage is sucked into the roller and then enters the garbage compressing and storing bin through the garbage drainage pipes, and accumulated snow cleaning and excavating operation is completed. The accumulated snow cleaning operation speed is increased, meanwhile, various construction operation tasks can be completed, the working efficiency and quality are improved, the construction operation cost is reduced, the machine can be used for multiple construction operation tasks such as road surface accumulated snow or garbage cleaning and ditch topsoil gravel cleaning or digging, and the equipment adaptation efficiency is improved.