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962 results about "Underground pipeline" patented technology

There are three primary underground pipelines servicing Georgia. The Colonial (petroleum) Pipeline based in Alpharetta Georgia, the Plantation (petroleum) Pipeline and the Dixie (liquefied petroleum, or LP gas) Pipeline. All three transmission pipelines originate in Houston Texas and travel through the South East United States.

Underground pipeline positioning method based on CORS (continuous operational reference system)

The invention discloses an underground pipeline positioning method based on a CORS (continuous operational reference system). The method comprises the following steps of: I, establishing a CORS; II, collecting paper drawings: collecting the pipeline as-built drawings of all underground pipelines paved in an area to be positioned and the topographical map around each underground pipeline respectively; III, making an electronic map, wherein the making process comprises the steps of paper map electronization treatment, drawing scanning and pretreatment, raster image transfer, raster image orientation, image sector conversion, pipeline attribution information marking, edge matching treatment, projection conversion, data check, conversion into an embedded electronic map and the like; IV, transferring and visually displaying the electronic map; V, superposing the coordinate data of the electronic map; and VI, positioning the underground pipelines. The method disclosed by the invention is easy and convenient to use and operate, has a good using effect and high practical value, and can really realize accurate positioning of the underground pipelines and effectively solve the problems of inconvenience in positioning operation, relatively bad positioning effect and the like of the existing underground pipeline positioning method.
Owner:XIAN MEIHANG INFORMATION IND

Underground pipeline locating method and device

The invention relates to a locating technology, and aims at providing an underground pipeline locating method and a device. The underground pipeline locating method comprises: setting a burial position of an electronic tag firstly; and then obtaining longitude and latitude coordinates of the electronic tag through a detector and transmitting the longitude and latitude coordinates of the electronic tag to a background computer management system to set up electronic tag information, and forming a pipeline geographic information system (GIS) on an electronic map of the background computer management system along with engineering information; during pipeline maintenance and locating in later period, firstly using global position system (GPS) to locate roughly according to the longitude and latitude coordinates of the electronic tag in the GIS, and then using the detector to locate accurately and amending burial depth. The underground pipeline locating method and the device are capable of intuitively and accurately displaying information of a geographic position of the underground pipeline, pipeline trend, pipeline key point information and pipeline ambient condition and the like through a hand-held terminal and a GIS map, and therefore working efficiency is greatly improved.
Owner:宁波华测电子科技有限公司

GIS-based underground pipeline operation and maintenance system

InactiveCN105550758ASolve problems that are not comprehensive, easy to lose, and not intuitiveIncomplete solutionData processing applicationsGeographical information databasesSystems managementNetwork data
The invention provides a GIS-based underground pipeline operation and maintenance system. The GIS-based underground pipeline operation and maintenance system comprises a map management sub-system, a pipe network facility management sub-system, a pipe network analysis sub-system, a pipe network maintenance sub-system, a system management sub-system, a WEBGIS pipe network figure publishing sub-system and a system database; the GIS-based underground pipeline operation and maintenance system is established on the basis of a dynamic and static water supply pipe network electronic map, performs attribute query, location, analysis and statistics of pipelines and various facilities, and outputs all kinds of statistical results; after a pipe network accident happens, a valve closing scheme and a user water cut-off notice can be provided within a short time; the scheme can be rapidly adjusted after a new condition happens; graphic and character integrated modern management of a water supply pipe network is realized; a dynamic updating mechanism of pipe network data is provided; the system is accurate and high-efficient; powerful scientific decision basis is provided for water supply planning, designing, dispatching, emergency maintenance and atlas data management; the full-computer operation process for analyzing and deciding is realized; and thus, the production efficiency and the social service level of a running-water company are increased.
Owner:无锡扬晟科技股份有限公司

Multifunctional spray irrigation equipment for landscaping

The invention relates to multifunctional spray irrigation equipment for landscaping. The multifunctional spray irrigation equipment comprises a second base, a rotating mechanism and a spray irrigation mechanism, wherein the rotating mechanism comprises an air cylinder, a rotating shaft, a first belt wheel, a second belt wheel, a belt, a second bearing and a second motor; the spray irrigation mechanism comprises a rocker arm type spray head, a water guide pipe, a first support rod, a support plate, a water box, a first base, a fixing block and an ascending and descending unit. The multifunctional spray irrigation equipment for landscaping has the advantages that firstly, the spray irrigation height can be regulated through the ascending and descending unit, so that various requirements of different plants on the spray irrigation height are met; secondly, the large-area spray irrigation can be realized by rotating the spray irrigation mechanism around the rotating shaft under the condition of only using the single rocker arm type spray head; through air cylinder control, the spray irrigation covering range can be adjusted, so that the laying of underground pipelines and the configuration number of spray irrigation equipment can be greatly reduced, and thus the unit area investment is reduced.
Owner:衡阳市金贝林景工程有限公司

Operation period underground pipeline pipe diameter measuring method based on ground penetrating radar

InactiveCN103675922ASolve the difficulty of accurate positioningAvoid destructionDetection using electromagnetic wavesImage denoisingDielectric
The invention provides an operation period underground pipeline pipe diameter measuring method based on a ground penetrating radar. The principle is that a ground penetrating radar electromagnetic wave reflection mechanism and a pipeline special circular shape are used for achieving underground pipeline pipe diameter detecting and interpreting under the non-excavation and non-disturbance situation when an operation period pipeline of an underground pipeline is filled with lossy dielectric. The implementation steps are that (1) on the basis that underground pipeline trend, burial depth, corresponding earth surface positions and proper radar frequency spectrum parameters are determined, ground penetrating radar detecting is carried out, and radar images of three measuring points in a radar measuring line direction above the pipeline are obtained by measuring; (2) on the basis of radar image denoising processing, electromagnetic wave single-track oscillographs corresponding to the coordinates of the three measuring points are extracted; (3) electromagnetic wave transmission time from the three measuring points to a pipe wall is determined through a single-track wave curve peak-valley value; (4) on the basis that field electromagnetic wave speed is determined, the transmission distance between the three measuring points and the pipe wall is obtained; and (5) the coordinates of the three measuring points and the electromagnetic wave transmission distance between the three measuring points and the pipe wall are used for computing the pipeline pipe diameter.
Owner:NANJING UNIV OF TECH

Accurate positioning and detecting method and device for damages of underground metal pipeline anticorrosive coating

The invention relates to an accurate positioning and detecting method and device for damages of an underground metal pipeline anticorrosive coating. The method comprises the following steps: a current interrupter periodically turns on or off a constant current source through the constant current source, and provides excitation signals for an underground pipeline; the ground voltages of two points along the underground pipeline route are measured by utilizing two saturation copper sulfate reference electrode detection canes which are connected with a signal measurement processor respectively; the signal measurement processor measures, records and displays the turn-on and turn-off of the pipe ground voltages; and the position of the damaged part of the underground pipeline can be determined according to the pipe ground turn-on and turn-off voltages. Through the method, the position of the damage point of the anticorrosive coating can be confirmed accurately, the detection accuracy of the damage for the underground pipeline anticorrosive coating is improved, and important guarantee is provided for mastering the normal operation situation of the pipeline, ensuring the safe operation of the pipeline and the convenience for pipeline maintenance and management.
Owner:HUADIAN ENERGY COMPANY LIMITED

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

Horizontal guiding drill while-drilling acoustic wave imaging detection early warning system and detection method thereof

The invention relates to a horizontal guiding drill while-drilling acoustic wave imaging detection early warning system which comprises an underground while-drilling detection and attitude measurementsystem and a ground data processing system that are connected with each other by a communication cable; wherein the underground while-drilling detection and attitude measurement system is installed between a drill rod on a horizontal guiding drill and a back-drawing device (or a guide plate) and comprises a while-drilling detection system and a while-drilling attitude measurement system which arerespectively connected with the communication cable, and a power supply administration module respectively connected with the while-drilling detection system and the while-drilling attitude measurement system by circuits; when in construction by using the horizontal guiding drill, construction and detection are carried out at the same time, and underground pipelines existing near the constructionlocus can be detected in real time; when in danger, the early warning system gives an alarm to operating staff of a drilling machine; meanwhile, the construction route map of the horizontal guiding drill can be accurately drawn, and the distribution situation of the pipelines existing near the construction route can be provided by combining the detection early warning information.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +2

Method for positioning underground pipeline and system thereof

The embodiment of the invention relates to a method for positioning an underground pipeline and a system thereof. The method comprises the following steps of: transmitting an electromagnetic wave signal to a wireless radio-frequency positioning marker containing an ID code; receiving a wireless signal which is fed back by the wireless radio-frequency positioning marker and contains the ID code and the underground pipeline information; carrying out checking treatment on the ID code and the underground pipeline information; determining an embedded place name of the wireless radio-frequency positioning marker according to the ID code; determining the embedded concrete position of the pipeline; and determining the trend of the pipeline according to the orientation information of the adjacent wireless radio-frequency positioning marker. The embodiment of the invention also provides a positioning system of the underground pipeline. The positioning method and the positioning system in the embodiment of the invention can realize the accurate positioning of the underground pipeline, find fault points as soon as possible when faults happen, reduce the digging area and the compensation cost,furthermore help maintainers establish the records of maintaining in normal times and overhauling the underground pipeline.
Owner:BEIJING RXG TECH

Construction method for putting tunnel shield into hole in special stratum

InactiveCN101660419ASafe entryReduce churnTunnelsRebarSoil horizon
The invention relates to a construction method for putting a tunnel shield into a hole in a special stratum, which is characterized by comprising the following steps: before putting the tunnel shield into the hole, approaching the tunnel shield to a tunnel portal gradually; injecting a bi-liquid grout into a soil layer of an external layer; chiseling off thick underground continuous wall concretein a steel ring of the tunnel portal; performing ground vertical sectional probe hole detection; welding a prepared double-layer spring steel plate on the steel ring of the tunnel portal; arranging ahole-entering device on the outer side of the steel ring of the tunnel portal; cutting internal arranged steel bars of an underground continuous concrete wall; pushing the tunnel shield into the holewithout a concrete protective layer; and injecting the bi-liquid grout again at a seam between reinforced soil and unreinforced soil bodies, wherein when the tunnel shield is put into the hole, the double-layer spring steel plate and the hole-entering device are clung to the shell of a tunnel shield machine, the tunnel shield is not pushed when the head of the tunnel shield machine enters a rubber cord fabric board, and a single fluid or the bi-liquid grout is injected into the soil layer of the external layer for replenishing grout. The construction method has the advantages of ensuring thatthe tunnel shield is safely put into the hole in the special stratum, reducing the soil loss, controlling land subsidence well and effectively protecting underground pipelines at the hole-entering part by adopting an internal and external combination measurement.
Owner:SHANGHAI MECHANIZED CONSTR GRP

Construction method of structural system of river under no-cutoff working condition

ActiveCN101892632AKeep the water flowingGuaranteed continuous flowArtificial islandsBuilding repairsSupporting systemCofferdam
The invention relates to a construction method of a structural system of a river under a no-cutoff working condition, comprising the specific steps as follows: 1, constructing cofferdams and shortcuts; 2, removing river channel bridges and pile foundation; 3, constructing a base pit of the river channel segment; 4, constructing the parts at both sides of a new river bridge; and 5, removing the cofferdams and recovering water transportation of the river. The invention has the advantages that: 1, the road or underground pipeline is ensured to be uninterrupted in the construction period; 2, the pile foundation is arranged or fillers are filled below a drainage pipe in the paving process of the drainage pipe to ensure that the drainage pipe maintains the water-on state at the preset height after the cofferdam is gathered; 3, the drainage pipe is cut in the connection-after-disconnection manner when the underground passage ground wall is constructed to cut separately for alternative construction so as to ensure that the river is not cutoff in the construction process of an enclosing structure; and 4, the drainage pipe is supported by a lattice column support system during construction of the underground structures and bridges so as to ensure the stability of the drainage pipe and no cutoff of the river in the construction process of the underground structure.
Owner:SHANGHAI FOUND ENG GRP

Transport embedding equipment used for underground pipeline embedding

The invention relates to underground pipeline embedding equipment, in particular to transport embedding equipment used for underground pipeline embedding. The transport embedding equipment used for underground pipeline embedding is high in working efficiency and capable of embedding pipelines in the required positions accurately and saving time and effort in the transport embedding process. In order to achieve the technical effects, the transport embedding equipment used for underground pipeline embedding comprises a mounting plate, supporting bases, first rotary shafts, a tire, a first fixing plate, a first guide rail, a first guide sleeve, a handle, a fixing block, a supporting rod, a first connecting block and the like. The supporting bases are mounted on the left side and the right side of the lower side of the mounting plate in a welded mode. The first rotary shafts are connected to the lower portions of the outer sides of the supporting bases. The transport embedding equipment has the technical effects of being high in working efficiency and capable of embedding pipelines in the required positions accurately and saving time and effort in the transport embedding process; and the underground pipelines are clamped through clamping plates.
Owner:北京京水建设集团有限公司

Underground pipeline excavation-restoration construction method of stage temperature-control field pipe-making

The invention relates to an underground pipeline excavation-restoration construction method of stage temperature-control field pipe-making, comprising the following steps: (1) an old sewage pipeline is plugged and cleaned, and closed-circuit television equipment is adopted to detect the inner part of the pipeline; (2) an impervious tubular auxiliary lining flexible pipe is arranged in the pipeline, and soaking hardened resin is filled to form a resin flexible pipe; (3) the resin flexible pipe and a hot water delivery pipe for heating are turned over and are inserted in the impervious tubular auxiliary lining flexible pipe; (4)the resin flexible pipe is expanded to be closely attached to the inner wall of the old pipeline by utilizing water and compression air, the hot water is heated in a circulating way, the resin flexible pipe is hardened, and a lining new pipeline is formed on the inner wall of the old pipeline; (5) the pipe orifices at two ends of the lining new pipeline are cut, so as to lead the pipeline to be smooth. The method is characterized in that: the heating circulation of hot water is divided into three steps: a first step is carried out for 40-45 minutes at the temperature of 73-75 DEG C; a second step is carried out for 55-60 minutes at the temperature of 82-84 DEG C, and a third step is carried out 30-35 minutes at the temperature of 25-30 DEG C. The method can prevent seepage, and can prevent the hardened resin which is soaked in the material and is solidified and not hard from cracking caused by sharp cooling.
Owner:管丽环境技术(上海)有限公司 +1

System and method for automatically building three-dimensional model of data of underground pipeline

The invention belongs to the field of three-dimensional geographic information system data visualization, and particularly relates to a method for automatically building a three-dimensional model of data of an underground pipeline. The method comprises the steps of building a three-dimensional virtual geographical environment according to DEM data and DOM data, cleaning and organizing the data of the underground pipeline, establishing a pipeline node tree structure relation, building underground pipeline node joints and a pipeline three-dimensional meta model, automatically building the three-dimensional model of the underground pipeline according to the structure of the underground pipeline and the positions of nodes, in a virtual geographical scene, of the underground pipeline, building a massive underground pipeline model drawing mechanism based on the LOD, loading the three-dimensional model of the underground pipeline to the virtual geographical scene, and carrying out visualization and query management. The method for automatically building the three-dimensional model of the data of the underground pipeline has the advantages that modeling and model management are flexible and convenient, the model of the underground pipeline does not need to be built manually, expression and rapid visualization of the data structure of the underground pipeline are facilitated, and rapid building and flexible management of the model of the complex underground pipeline in the virtual geographical environment are achieved.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Ultra-shallow earth-covered subway shield traversing operation tunnel construction method of

ActiveCN101899977APrevent floating deformationStable Late DeformationUnderground chambersTunnel liningUnderground pipelineTunnel construction
The invention relates to an ultra-shallow earth-covered subway shield traversing operation tunnel construction method, comprising the following steps of: a. preparation before construction: (1) identifying the work condition within a traversing range before constructing; (2) modifying subway shield equipment; (3) modifying a duct piece; and (4) carrying out protection treatment on underground pipelines within the traversing range; b. actual construction: (1) dividing the ultra-shallow earth-covered subway shield traversing range into a test segment, a traversing segment and a control segment after the traversing, acquiring the optimized parameter configuration of subway shield tunnelling construction when the subway shield traversing tunnel is tunnelled on the test segment, and guiding the subway shield traversing segment tunnelling construction; (2) implementing anti-floating measures within the traversing range; (3) after the traversing, carrying out secondary tracking grouting on the upper part of a traversed tunnel in the constructed tunnel to further stabilize the soil bodies and prevent the subsequent deformation; and (4) keeping to monitor the deformation conditions of the ground and the settlement conditions of the traversed tunnel in the construction process, and summarizing monitoring data to a computer of a command center.
Owner:SHANGHAI TUNNEL ENG CO LTD

Method for comprehensively treating saline and alkaline land through combination of irrigation and planting

ActiveCN104904365AImprove the effect of salt removalImprove abilityClimate change adaptationWatering devicesPipeflowMoisture
The invention discloses a method for comprehensively treating saline and alkaline land through combination of irrigation and planting. The method comprises the following steps: (a) paving underground pipelines, including micro-moisture pipes for irrigation and salt discharge underground pipes for discharging salt; (b) leveling and furrowing the saline and alkaline land for irrigation salt discharge, wherein the irrigation salt discharge includes underground salt discharge and surface salt discharge and specifically comprises the following three steps in sequence: I, performing underground salt discharge; II, performing surface salt discharge, and performing rapid large-area surface salt discharge on the saline and alkaline land subjected to the underground salt discharge through a flood irrigation way; III, repeating the underground salt discharge; (c) planting suaeda salsa on a large area, continuously performing micro-moisture irrigation salt discharge before and after seedling emergence of the suaeda salsa, performing micro-moisture irrigation intermittently after branching of the suaeda salsa till the end of the peak-growth period of the suaeda salsa, pulling up the suaeda salsa by the roots, and planting crops or continually planting the suaeda salsa according to the soil salinity to further reduce salinity.
Owner:WEIFANG YOURONG IND

Underground pipeline damage detection method and system

The invention discloses an underground pipeline damage detection method and system. The method specifically comprises the steps of actively simulating variable sound signal and coupling the sound signal into a pipeline, modulating a backward scattered light signal in an optical fiber when the sound signal is transmitting in the pipeline, and acquiring the backward scattered light signal carrying sound signal information in the optical fiber; demodulating the backward scattered light signal to acquire time domain information of the sound signal to be detected; separately performing Fourier transform and wavelet transform on the time domain information of the sound signal, to acquire first and second feature parameters of the sound signal to be detected; and using the feature parameters of the sound signal to be detected as inputs, and detecting the position and degree of a damage of an underground pipeline via feature extraction and other methods. According to the method and system provided by the invention, the active sonic flaw detection method is used, the detection of the internal damage of the long underground pipeline is achieved through controlling the frequency and amplitudeof the sound signal, and the feature parameters of the sound signals of the different positions of the damaged pipeline are used for accurately positioning the damage position of the pipeline and assessing the damage degree.
Owner:HUAZHONG UNIV OF SCI & TECH

Construction method for reinforcing soft formation in shield construction

The invention discloses a construction method for reinforcing soft formation in shield construction, adopting a reinforcement mode which uses plain continuous walls as the major and jet grouting piles as the auxiliary; as the plain continuous wall is adopted in the invention, with partial support, the plain continuous wall can withstand external soil-water pressure to ensure the stability of a working face, and tunnel portals can be broken down in advance before launching shield construction to prevent confliction with the shield assembly and debugging; the bulk breaking and construction can be safely and quickly carried out on a connection access; the construction process is simplified; the requirements on plain continuous wall are relatively simple, joints do not need to be specifically made, then a pile jetting machine is adopted to punch continuously in the construction process; after the plain continuous wall is used for reinforcement, the reinforcement range is significantly reduced, particularly applicable for engineering sites with small construction sites, intensive underground pipelines, heavy traffic on the ground and near to the foundations of the buildings on the ground; the reinforcement cycle is shortened, the age for reaching required strength is short, and the cost of the entire end is relatively low.
Owner:CHINA TUNNEL CONSTR GUANGDONG

Silty soil stratum pipe-jacking jacking construction method based on tool pipe with steel sleeve head

The invention discloses a silty soil stratum pipe-jacking jacking construction method based on a tool pipe with a steel sleeve head. The method includes the steps that firstly, a work well is constructed, wherein the work well used for jacking a construction underground pipeline is constructed, the construction underground pipeline is formed by splicing a plurality of pipeline splicing joints, the tool pipe with the steel sleeve head comprises the steel sleeve pipe, a supporting ring installed on the inner side of the rear end of the steel sleeve pipe and an inserting port fixed to the supporting ring, the wall thickness of the steel sleeve pipe is 0.8-1.2 cm, and the length of the steel sleeve pipe is 80-120 cm; secondly, a jacking device is installed; thirdly, the tool pipe with the steel sleeve head is jacked, wherein the tool pipe with the steel sleeve head is hoisted in place, the tool pipe with the steel sleeve head is jacked, and a soil is manually excavated in the pipe; and fourthly, pipeline jacking is performed, wherein the pipeline splicing joints in the construction underground pipelines are jacked correspondingly from front to back. The method is simple in step, reasonable in design, easy and convenient to construct, good in using effect, capable of easily, conveniently and fast completing the silty soil stratum pipe-jacking jacking construction process and safe and reliable in construction process.
Owner:中铁二十局集团第五工程有限公司
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