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529results about How to "Short construction time" patented technology

Construction process for rock enlarged toe anchor pile foundation of overhead power transmission line

The invention discloses a construction process for a rock enlarged toe anchor pile foundation of an overhead power transmission line. The construction process comprises the following steps of: (1) measuring and positioning, namely measuring a tower foot position and removing a rock surface to determine a foundation bolt base point; (2) drilling, namely drilling a straight hole at the base point by using a tubular drill until the drilling is finished, and enlarging the bottom of the straight hole by replacing a deviation bit to form a taper hole, wherein the aperture and the depth of the straight hole are determined according to the external diameter and the length of an anchor rod; the taper angle is controlled by controlling the drill bit sinking and the deviation speed; the lower bottom surface of the taper hole is coincided with the bottom of the straight hole; the taper height is determined according to the actual demand; the taper hole is coaxial with the straight hole; the upper bottom of the taper hole is the section of the straight hole; the diameter of the straight hole is 8 to 10cm more than the external diameter of the anchor rod; and the taper angle is 30 to 40 degrees; (3) placing an anchor and grouting, namely placing the anchor rod into the hole to insert a foundation nut and a part of rod body into the taper hole and grouting a CGM30 grout into the hole until the grout reaches the rim of the hole, wherein the anchor rod and the straight hole are coaxial; and (4) pouring a bearing platform, namely pouring the anchor rod which is exposed out of the straight hole into the bearing platform by using high-standard cement, wherein the foundation nut and a foundation bolt are protruded out of the surface of the bearing platform.
Owner:STATE GRID SHANDONG ELECTRIC POWER COMPANY RIZHAOPOWER SUPPLY

Organosilicon superhydrophobic nano-composite coating, and preparation method and use thereof

The invention discloses an organosilicon superhydrophobic nano-composite coating with ultra-low inorganic powder content. The composite coating sequentially comprises a base material, an organosilicone resin coating which contains inorganic powder and serves as an inner coating, and an organosilicone resin coating which does not contain the inorganic powder and serves as an outer coating, or the composite coating sequentially comprises the base material, an organosilicone resin coating which does not contain the inorganic powder and serves as the inner coating and an organosilicone resin coating which contains the inorganic powder and serves as the outer coating. A method for forming the coating on the base material by a two-step coating method is also provided by the invention. The composite coating provided by the invention can be used for long-term hydrophobisation, ice prevention and weather resistance in the fields of inner and outer walls of outdoor buildings, automobile bodies, ship bodies, various pipelines, electric and electronic devices, toys, plastic products, glass products and the like. The preparation method provided by the invention has the advantages of simple process, short flow, strong generality, strong environmental suitability and the like, and is easy to construct.
Owner:STATE GRID CHONGQING ELECTRIC POWER +1

Trenchless built-in sleeve pipeline repairing equipment and method

The invention discloses a trenchless built-in sleeve pipeline repairing method and equipment. The method includes utilizing two adjacent inspection shafts as operation space under the condition that the road surface is not excavated, adopting a pipeline to be repaired as a carrier, conveying short pipes into the pipeline to be repaired, dragging the short pipes to advance via a traction device, gradually completing hitting combination and connection between a latter short pipe and a former short pipe in an advancing process, realizing assembly of the short pipes in the pipeline to be repaired and finally forming a new pipeline; and then filling a gap between the new pipeline and the pipeline to be repaired in a grouting manner, leading the sleeved-in new pipeline to be stabilized and to be closely combined with the pipeline to be repaired to realize common pressure resistance strength, and accordingly realizing repair to the pipeline to be repaired. The equipment comprises a mechanical traction system and a hydraulic power system. The trenchless built-in sleeve pipeline repairing method and the equipment completely realize the trenchless technology, and have the advantages that continuousness is realized when the pipeline to be repaired crosses a road, construction time is short, engineering comprehensive manufacturing cost is low, influence to traffic is quite low, and the like.
Owner:北京创安亚非开挖工程技术有限公司 +1

Method for repairing underground pipeline without digging

InactiveCN101649944AShort construction timeSolving Temporary Drainage ProblemsPipe elementsWarm waterSewage
The invention relates to a method for repairing an underground pipeline without digging, which comprises the following steps: (1) blocking and cleaning an old sewage pipeline needing repair and usingclosed circuit TV system (CCTV) equipment to detect the inner part of the pipeline; (2) delivering a waterproof barrel-shaped auxiliary lining hose pipe into the pipeline and injecting thermosetting resin to form a resin hose pipe; (3) turning over and inserting the resin hose pipe and a warm water delivery pipe for heating into the waterproof barrel-shaped auxiliary lining hose pipe; (4) expanding the resin hose pipe with water and compressed air so that the resin hose pipe is tightly attached to the inner wall of an old pipe, circularly heating by warm water and hardening and molding the thermosetting resin hose pipe so that the inner wall of the old pipe forms a new lining pipe with high strength; (5) opening pipe openings at both ends of the new lining pipe by cutting to smooth the pipeline; and (6) cutting at the extending positions of the pipe openings of the new lining pipe, which are positioned in the well wall of a check well. The method can prevent leakage, protect the pipe openings, prevent the thermosetting resin injected into the lining hose pipe from being mixed with underground water and prevent a poor phenomenon of lining material part hardening.
Owner:管丽环境技术(上海)有限公司 +1

Blast furnace pressing-in grouting and lining-making construction method

A blast furnace pressing-in grouting lining making construction method comprises the following: a first step of drilling grouting holes (2) in a furnace casing (5) of the damaged part of the blast furnace, inserting a grouting short pipe (4) with a valve (9) into each hole, and then welding the grouting short pipe (4) and the furnace casing (5) together; a second step of butting the output pipe of a pulp press and the grouting short pipe with the valve (9) on the furnace casing together; a third step of pressing stirred slurry (12) into the blast furnace through the pulp press, after reaching the preset slurry amount, the pulp press stopping pressing, opening the feedback valve of the pulp press, and then disassembling an output pipe (8) of the pulp press from the grouting short pipe (4) after closing the valve (9) of the grouting short pipe (4); a fourth step of circulating the second step until grouting is finished for all grouting holes. The blast furnace pressing-in grouting lining making construction method not only improves the efficiency and quality of blast furnace maintenance but also achieves good maintenance effect under both the delay status of the blast furnace and the non-delay status of the blast furnace.
Owner:WUHAN HONGCHENG METALLURGICAL MATERIAL

Compensation method for roadbed settlement

The invention provides a compensation method for roadbed settlement, which comprises the steps that: when in a roadbed construction process, on a road section which can easily settle and deform after being open to traffic, when a roadbed is filled to a height which is 30cm to 200cm from the top surface, retaining walls are built on both sides of the roadbed; bagged lime is uniformly paved on the inner sides of the retaining walls within the full-width range of the roadbed on different layers; a rubber pipe is pre-reserved on each lime bag to the outer side of the roadbed as a water injection channel in a later period; the bottom surfaces of the retaining walls are 20cm to 100cm lower than the bottom surfaces which are paved from the bagged lime, and the top surfaces of the retaining wallsare in alignment with the top surface of the roadbed; and when the roadbed settles, the water is injected into the lime bags through the pre-reserved rubber pipe, the lime absorbs the water, swells and jacks a road surface structure up. The compensation method for roadbed settlement completes the water injection on the outer side of the roadbed, has a short construction time, does not interrupt the traffic during the construction process and has little interference to the traffic; and the construction is not restricted by the weather and the environment, the settlement can be handled at any time when being found, and the construction process is controllable.
Owner:广东大象交通科技有限公司

A large-scale solution cavity treatment method for karst tunnels

The invention discloses a karst tunnel large-scale cavern processing method. A cavern traversing tunnel section penetrating through a cavern comprises a tunnel section I, a tunnel section II and a tunnel section III according to the distribution positions, wherein two sides of the tunnel section I are suspended in midair and the top of the tunnel section I is at a smaller distance away from a cavern top plate, one side of the tunnel section II is suspended in midair, and two sides of the tunnel section III are suspended in midair and the top of the tunnel section III is at a larger distance away from the cavern top plate. The processing method comprises the steps of: 1, excavating a bypass pilot tunnel; 2, protecting inside of the cavern; 3, processing the bottom of the tunnel: filling the cavern below the tunnel section I with rock residues and grouting for reinforcing, and then distributing an armoured concrete slab girder, filling the cavern below the tunnel section III with concrete and then distributing an armoured concrete slab girder, filling the cavern below the tunnel section II with hard fillers; 4, constructing a gravity retaining wall at the suspending side of the tunnel section II; 5, constructing the tunnel section I with an open cut tunnel process; 6, constructing the tunnel section III with the open cut tunnel process after the bypass pilot tunnel bypasses; and 7, constructing the tunnel section II. The karst tunnel large-scale cavern processing method has the advantages of reasonable design, convenience for construction, safe and reliable construction process and short construction period, good processing effect on the large-scale cavern.
Owner:CHINA RAILWAY 20 BUREAU GRP

Visible light and power line communication method and device supporting data transmission and positioning

The invention discloses a visible light and power line communication method and device supporting data transmission and positioning. The visible light and power line communication method comprises the steps that emission signals are coupled to a power line to be transmitted; the emission signals are extracted, service information is selected from the emission signals according to first signaling information, automatic gain control is conducted according to the source of positioning information, pieces of position information of an LED are combined in a frequency division multiplexing mode, and then a combination signal is obtained; the combination signal is fed into the LED and converted into a current signal, and the current signal is converted into a visible light signal by adjusting the luminous intensity of the LED; the visible light signal is received, corresponding service information is demodulated according to second signaling information, and the LED position information is obtained. By the adoption of the visible light and power line communication method and device supporting data transmission and positioning, electrical signals transmitted by a power line are directly emitted out through the LED in a visible light communication mode, and data transmission and positioning application are considered. The visible light and power line communication method and device supporting data transmission and positioning have the advantages that the network establishment cost is low and construction time is short. The visible light and power line communication method and device supporting data transmission and positioning can be applied to the fields such as smart power grids, digital families and pubic security monitoring.
Owner:TSINGHUA UNIV

Walking-type hanging basket for transmission line

The invention relates to a walking-type hanging basket for transmission line, which comprises a basket base frame formed by the assembly of a cross beam at the basket lower part, a longitudinal beam at the basket lower part and a three-way joint at the basket lower part, a basket top frame formed by the assembly of a cross beam at the basket upper part, a longitudinal beam at the basket upper part and a three-way joint at the basket upper part, a basket upright column is provided with a basket thin two-way joint, the basket thin two-way joint is connected to a cross beam at the basket middle part, the cross beam at the basket middle part on one side and the cross beam at the basket upper part are provided with a driving wheel support, and the driving wheel support is provided with a driving wheel device and an auxiliary tensioning wheel support, the auxiliary tensioning wheel support is provided with an auxiliary tensioning wheel device; the cross beam at the basket middle part on the other side and the cross beam at the basket upper part are provided with a driven wheel support, and the driven wheel support is provided with a driven wheel device. The invention adopts electric power drive and has providing quick sliding speed, thereby shortening construction period, improving efficiency, enabling operators to construct in standing manner.
Owner:STATE GRID CORP OF CHINA +2

CIPP overturning liner pipeline repairing device

The invention discloses a CIPP overturning liner pipeline repairing device, comprising the following steps: pipeline dredging: reducing a water level of a pipeline to be repaired to a lowest point, and after pulling chamber dredging is adopted to remove most deposits, performing high pressure cleaning work and comprehensive water plugging; adopting a special water plugging device and a large power sewage pump to perform water plugging and water transferring on an upstream and a downstream of the pipeline, and cleaning the pipeline; and enabling a high pressure water cleaning vehicle to enter from an upstream well mouth to move to a downstream well mouth for repeated cleaning till the pipeline meets the repairing requirement, and meanwhile, enabling a CCTV detecting device to enter from the upstream well mouth to monitor among the pipelines to be repaired and to match with the high pressure cleaning work. The CIPP overturning liner pipeline repairing device adopts a non-excavation technology and is short in construction time, site operation is finished in 24 hours generally, construction devices have a small floor area, a liner pipe and an old pipe are tightly combined, the strength is high, the service life can reach 50 years at most, and the CIPP overturning liner pipeline repairing device has small influence on traffic and is less affected by the environment, and thus the construction cost is reduced.
Owner:WENZHOU FUCHENG CONSTR ENG CO LTD

Wooden structure house and building process thereof

The invention discloses a wooden structure house and a building process thereof. The wooden structure house comprises a house main body structure and a roof structure, wherein every floor of the house main body structure comprises a plurality of wall bodies 1; the adjacent floors are separated by a floor plate; the wall bodies 1 and the floor plate are an integrated composite board or are formed by splicing a plurality of composite boards arranged on the same plane; the integrated composite board is formed by piling a plurality of layers of wooden boards with same shapes and sizes; and the wooden board is formed by splicing a plurality of wooden plate strips which are arranged on the same plane. The building process comprises the following steps of: 1, on-site constructing foundation and basement, factory-prefabricating and transporting the integrated composite boards; and 2, using the prefabricated composite boards to assemble the wooden structure house on the spot. The wooden structure house in the invention is simple in construction process, controllable in construction quality, low in input investment, rational in structural stress of the built house, beautiful in shape, wide in application range and convenient for prefabricating the integrated boards and suspending on the spot.
Owner:杨岳华

Device and method for preventing sediment deposition and treating sediment in ballast tank of ship

The invention relates to a device and a method for preventing the sediment deposition and treating the sediment in a ballast tank of a ship. The traditional L-shaped ballast tank is divided into a topside ballast tank and a bottom ballast tank, wherein the topside ballast tank structure is provided with sediment outlet holes, and the shape and the size of the drain holes are optimized. During ballasting in the water area with a large sediment charge, only the topside ballast tank is ballasted, and the bottom ballast tank is in the void state, so that the ship can achieve the draught and the stability for safe sailing; and when the ship drives away from water field containing the sediment, the bottom ballast tank is ballasted, and the sediment in the topside ballast tank is discharged by a pump or gravity. For the conversion of the traditional ship, the invention has the advantages of slight change to the ship structure and the ballast piping, short construction time, convenient operation flow and lower cost; and for a newly-made ship, the invention has the advantage that the effect of preventing the sediment can be achieved as long as increasing less design and manufacturing cost, thereby achieving huge practical meanings and extensive application prospects.
Owner:COSCO SHIPYARD GROUP +1

Super-deep underground continuous wall and construction method thereof

The invention relates to a super-deep underground continuous wall which comprises an underground continuous wall body. Guide walls are symmetrically arranged on the two sides of the wall body, the cross sections of the guide walls are in the shape of an L, the lower ends of the guide walls are located on underground rock-soil, and the lug edges of the guide walls are connected with a concrete pavement. The invention further discloses a construction method of the super-deep underground continuous wall. The method includes the following steps of construction preparation, measuring, guide wall manufacturing, wall protection slurry manufacturing, grooving construction, bottom-clearing replacement, connector cleaning through wall brushing and unit slot section inspection, wherein a grabbing-milling integrated grooving method is used in the grooving construction. The method is high in grooving efficiency, short in construction time and short in groove wall soaking time, the grabbing-milling integrated grooving method is used in the grooving construction, technologies can be changed timely according to different stratum hardness situations, the characteristics that a grab bucket is high in digging speed at the soft soil layer and milling wheel can achieve rapid milling and digging footage at a hard soil layer or bed rod with standard penetration test blow count exceeding 45 are fully used, and therefore rapid and efficient grooving of the whole wall can be achieved.
Owner:ZHONGDING INT ENG

Overhead cast-in-place box beam pressure-bearing strut and construction technology thereof

The invention discloses an overhead cast-in-place box beam pressure-bearing strut and relates to overhead concrete box beam hole-by-hole casting construction work. The overhead cast-in-place box beam pressure-bearing strut comprises a support body (1), a reinforced support (2) and a crossed support (10). The support body (1) is composed of a plurality of scaffolds (3). A supporting base (5) and a bracket (6) are arranged at the top end and the bottom end of a vertical supporting rod (1.1) respectively. The bracket (6) is provided with distribution beams (7) in an overlapped mode, and the distribution beams (7) comprise a first distribution beam (7.1) placed in the middle and second distribution beams (7.2) placed on two sides. The second distribution beams (7.2) are provided with wing plate supports (8) in an overlapped mode, and the first distribution beam (7.1) and the wing plate supports (8) are provided with formworks (9) in an overlapped mode. The overhead cast-in-place box beam pressure-bearing strut is convenient to assemble and disassemble, high in mechanical degree, quick in transferring, and capable of improving construction efficiency of cast-in-place box beams. According to the overhead cast-in-place box beam pressure-bearing strut, overlapping accuracy of the support body can be controlled easily, cost performance is high, construction time is short, and modern construction demands can be met. The invention further discloses a construction technology of the overhead cast-in-place box beam pressure-bearing strut.
Owner:CCCC SHEC FIRST HIGHWAY ENG
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