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1575results about How to "Easy to lay" patented technology

System for kinetic model test of ballastless track subgrade of high-speed railway

The invention discloses a system for kinetic model test of the ballastless track subgrade of a high-speed railway. The system comprises a model test box, a model of the ballastless track subgrade of the high-speed railway, an excitation system and a monitoring system, wherein the model of the ballastless track subgrade of the high-speed railway is formed by the foundation, a foundation bed bottom layer, a foundation bed surface layer, a concrete base, CA (cement asphalt) mortar, a track plate, a fastener system and a steel rail in sequence; the excitation system comprises a series of vibration exciters; simulation of train loads at different running speeds is realized by cooperatively controlling the vibration excitation frequency and phase of each vibration exciter; and dynamic earth pressure sensors and layered settlement gauges are arranged in the model of the subgrade, steel strain gauges are embedded in the concrete base and displacement and acceleration sensors are arranged on the track structure to jointly form the monitoring system of the system. The system can be used for carrying out study on the kinetic model test of the subgrade under the running load of the train and can evaluate and predict different foundation conditions, subgrade structures and track irregularity.
Owner:ZHEJIANG UNIV

Foundation base model test device capable of bidirectional loading

ActiveCN102493500AMany simulation functionsSmall sizeFoundation testingInlet valveSteel frame
The invention discloses a foundation base model test device capable of bidirectional loading. A force-bearing framework is a rectangular steel frame, a model slot is of a rectangular steel structure, is provided with an upper opening and is formed by welding of a box template, the force-bearing framework is sleeved at the periphery of the model slot, a horizontal actuator counterforce column is vertically erected on the left end part of the model slot, the left end of the horizontal actuator is connected with the horizontal actuator counterforce column, the right end of the horizontal actuator is connected with the top of a pile, the upper end of a vertical actuator is connected with a cross beam at the upper part of the force-bearing framework, the lower end of the vertical actuator is connected with the top of the pile through a vertical dowel steel, a row of drain valves are arranged at the lower part of the left side wall of the model slot, an inlet valve is arranged at the lower part of the right side wall of the model slot, and a water supply pipe of the inlet valve is connected with a constant-pressure water tank. Monitoring is systematic and comprehensive, embedding of monitoring instruments is relatively easy, and automatic and real-time monitoring on multiple physical quantities can be realized. The foundation base model test device disclosed by the invention can be used in conducting model tests like slope foundation, composite foundation and pile foundation.
Owner:HUBEI ELECTRIC ENG CORP +1

Smart pipeline with optical fiber sensing function and manufacturing method for smart pipeline

InactiveCN103016851AEasy to installShort on-site commissioning timeFlexible pipesRigid pipesEpoxyThird party
The invention discloses a smart pipeline structure, which comprises a pipeline, a sensing optical cable and a 3-layer polyethylene (3PE) anticorrosive coating. The pipeline is coated by the 3PE anticorrosive coating. The sensing optical cable is positioned in the 3PE anticorrosive coating, and is laterally wound around the pipeline. The 3PE anticorrosive coating consists of an epoxy powder coating, an adhesive layer and a PE coating layer from inside to outside. The manufacturing method for the smart pipeline comprises the following steps of: performing intermediate-frequency heating on a de-rusted steel pipe; depositing and gelling epoxy powder on the surface of the steel pipe under the promotion of compressed air and the action of an electrostatic field; laterally winding the sensing optical cable around the pipeline under the condition of ensuring the gelled state of the epoxy powder coating; extruding an adhesive by using an extruder, and coating the adhesive on the surfaces of the gelled epoxy powder and the sensing optical cable; and extruding the PE coating layer by using the extruder, adhering the PE coating layer and the adhesive layer in the same way, and performing cooling forming under the action of water cooling. The leakage, corrosion, third-party interference and the like of the pipeline can be online monitored in real time.
Owner:TONGJI UNIV

Filing layered sedimentation monitoring device and method

The invention discloses a filing layered sedimentation monitoring device and method. The monitoring device comprises a bottom sedimentation monitoring unit, a middle sedimentation monitoring unit and a ground surface sedimentation monitoring unit which are buried in a soil layer to be monitored from bottom to top and are vertically arranged. Burying holes are formed in the soil layer to be monitored. An anchoring head is arranged under the bottom sedimentation monitoring unit. The bottom sedimentation monitoring unit, the middle sedimentation monitoring unit and the ground surface sedimentation monitoring unit are all provided with inclinometer pipes, extensible pipes arranged on the outer sides of the inclinometer pipes in a sleeving mode and displacement sensors installed on the upper portions of the inner sides of the inclinometer pipes. The monitoring method comprises the steps that firstly, drilling of the burying holes is conducted; secondly, the bottom sedimentation monitoring unit is installed; thirdly, the middle sedimentation monitoring unit is installed; fourthly, the ground surface sedimentation monitoring unit is installed; and fifthly, layered sedimentation monitoring is conducted. The filing layered sedimentation monitoring device and method are reasonable in design, convenient and easy to operate, convenient to bury, high in measuring precision and capable of effectively solving the problems that existing layered sedimentation monitoring equipment is large in equipment burying workload and low in measuring precision.
Owner:CHINA JK INST OF ENG INVESTIGATION & DESIGN

Novel floating build floor and its construction method

The invention relates to a novel floating floor and a building and constructing method for the same. The novel floating floor mainly comprises a reinforced concrete layer, a soundproof layer, a concrete cushion and a wood floor or other decorative floor on the concrete cushion, wherein, the soundproof layer is arranged between the reinforced concrete layer and the concrete cushion. The soundproof layer in the novel floating floor is made of polyolefin foaming materials which are formed by composition of a plurality of layers or by primary foaming and are provided with upper surface structures and lower surface structures. The total thickness of the polyolefin foaming materials is between 11 and 20 millimeters; the thickness of the upper layer is between 3 and 6 millimeters, and the density of the upper layer is between 50 and 100 kilograms per cubic meter; the thickness of the intermediate layer is between 5 and 8 millimeters, and the density of the intermediate layer is between 30 and 50 kilograms per cubic meter; and the thickness of the lower layer is between 3 and 6 millimeters, and the density of the lower layer is between 50 and 100 kilograms per cubic meter. The floating floor is waterproof, moistureproof and mildewproof, is small in thickness and light in weight, and has no pollution; and the floating floor does not require special construction equipment, can be conveniently laid, and is difficult to form rigid connection with a foundation floor and walling to create a sound bridge. The novel floating floor overcomes the defects of the prior floating floor, simultaneously has a good soundproof effect, is economic and practical, and has obvious effect.
Owner:天津市润达塑料包装有限公司

Fabricated prestressed heat-resistant cement concrete pavement and construction process thereof

The invention discloses a fabricated prestressed heat-resistant cement concrete pavement and a construction process thereof. The pavement is formed by splicing a plurality of fabricated prestressed heat-resistant pavement plates which are parallelly paved and connected into a whole through transverse prestressed steel stranded wires, wherein each fabricated prestressed heat-resistant pavement plate comprises a fabricated prestressed pavement plate which consists of a plurality of pavement plate blocks connected through connecting plates, and a vermiculite concrete heat-resistant paving layer which is paved on the fabricated prestressed pavement plate; each pavement plate block comprises a plurality of common plates which are connected into a whole through longitudinal prestressed steel stranded wires; and the connecting plates and the common plates are cement concrete prefabricated plate blocks. The construction process comprises the following steps of: 1, prefabricating the cement concrete prefabricated plate blocks; 2, transporting the cement concrete prefabricated plate blocks; and 3, paving the pavement. The pavement is reasonable in structural design, convenient to construct, low in input cost and short in construction period, and has heat resistance, construction quality is easy to ensure, and various practical problems of the traditional fabricated cement concrete pavement can be solved.
Owner:CHANGAN UNIV

Artificial lawn and fabrication process thereof

The invention discloses an artificial lawn and a fabrication process thereof. The lawn comprises a soil basal layer, a warp knitting grid net paved above the soil basal layer, and fiber grass clusters knitted on the warp knitting grid net, wherein the warp knitting grid net is in a grid structure which is formed by interlacing warps and wefts, natural grass is inserted into grids by the warp knitting grid net, and grass roots of the natural grass are planted in the soil basal layer; the warps and the wefts are all grass silk yarn harnesses knitted and twined by fiber grass yarns, and the grass roots of the fiber grass clusters are knitted in the grass silk yarn harnesses. The process comprises the steps: producing the fiber grass yarns; arraying a plurality of fiber grass yarns side by side, then, knitting the grass yarns into a fried dough twist grass yarn harnesses, and knitting the grass yarn harnesses into the warp knitting grid net; building the soil basal layer on the ground; paving the knitted warp knitting grid net above the soil basal layer; inserting or planting the natural grass in the warp knitting grid net. The artificial lawn and the fabrication process thereof have the benefits that materials, such as base fabrics and mucilage glue, are not needed, so that the economic cost is reduced; the natural grass is planted in the grid, so that the artificial lawn and the fabrication process thereof are more real and have strong flexibility.
Owner:江蘇聯創人造草坪股ふん有限公司

Construction method for enabling shallowly buried and darkly excavated tunnel to pass through cottage area

The invention discloses a construction method for enabling a shallowly buried and darkly excavated tunnel to pass through a cottage area. The construction method comprises the following steps: excavating a tunnel hole of the constructed shallowly buried and darkly excavated tunnel from back to front through a step excavation process, and performing preliminary bracing on the tunnel hole formed by excavating from back to front in an excavating process, wherein the tunnel hole consists of an upper guide hole and a lower guide hole positioned right below the upper guide hole, the rear part of the tunnel hole is connected with a vertical well, the preliminary bracing structure of the tunnel hole comprises a plurality of grating steel frameworks for supporting the tunnel hole from back to front, a layer of bar-mat reinforcement suspended on the inner wall of the tunnel hole and a concrete layer jetted on the inner wall of the tunnel hole. The process for excavating the tunnel hole of the shallowly buried and darkly excavated tunnel comprises the following steps: I, excavating the initial segment of the upper guide hole; II, excavating the initial segment of the lower guide hole; III, synchronously excavating the upper and the lower guide holes. The construction method disclosed by the invention is simple in step, reasonable in design, convenient in construction, good in construction effect, capable of simply completing the construction process of the shallowly buried and darkly excavated tunnel that passes through the cottage area, and safe and reliable in a construction process.
Owner:CHINA RAILWAY 20 BUREAU GRP

Highway tunnel traffic identification method

The invention discloses a highway tunnel traffic identification method, which is characterized in that 1. an inlet vehicle identification device and an inlet vehicle speed detection device, an outlet vehicle identification device and an outlet vehicle speed detection device are arranged; 2. a central processing unit obtains the information and speed of the inlet vehicles and the information and speed of the outlet vehicles, and the entering and exiting times of the vehicles are recorded; 3. practical traveling time is calculated; 4. the threshold value range of the traveling time of the vehicles normally and safely passing through the tunnel is determined; 5. abnormal vehicles are determined; 6. abnormal conditions occurring in the tunnel are determined; and 7. the number of the vehicles besieged in the tunnel and average queuing length are calculated and a traffic abnormal event alarming is sent. The invention has the obvious effect that the line laying is simple, implement is easy, cost is low, and real-time monitoring is carried out aiming to the highway tunnel traffic conditions so as to facilitate statistic data; and whether the abnormal conditions occur or not can be obtained in time, and the conditions in the tunnel after the abnormal conditions occur can be predicted.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST

Ecological river interlocking type building blocks and construction method for building protection ridge through building blocks

The invention discloses ecological river interlocking type building blocks and a construction method for building a protection ridge through the building blocks. Each building block comprises a building block basal body, a first building block connecting body and a second building block connecting body are arranged on the two sides of each building block basal body respectively, and the first building block connecting body and the second building block body are respectively provided with grouting holes. The construction method for building the protection ridge through the building blocks particularly includes the following steps of surveying and setting out, base slot excavation and PVC drain pipe embedment, bottom plate concrete pouring, reinforcing mesh laying and installing, ecological retaining wall installing, steel doweling and grouting, grass planting, earthwork backfilling and geogrid laying. The building blocks have the advantages of being high in strength and crack resistance and few in consumed materials, and therefore the cost for manufacturing the mutually-embedded protection slope building blocks is reduced; bottom plates, retaining walls and earthworks behind the walls form a stable structure, and the structure can resist the load effect and is stable and firm.
Owner:ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER

Deformation monitoring method for shallow-buried excavation tunnel construction

The invention discloses a deformation monitoring method for shallow-buried excavation tunnel construction. The deformation monitoring method comprises the following steps: 1) digging a tunnel: digging a tunnel cavity for a constructed shallow-buried excavation tunnel from back to front, primarily supporting the dug tunnel cavity from back to front during the digging process, and forming a primary supporting structure, wherein the primary supporting structure comprises a plurality of grating steel frames for supporting the tunnel cavity from back to front, and each grating steel frame is composed of an arch supporting steel frame and left and right vertical supporting steel frames; 2) arranging monitoring points: arranging multiple sets of supporting state monitoring points on the primary supporting structure of the constructed tunnel cavity from back to front during the digging process, and meanwhile, arranging a plurality of ground surface settlement monitoring points in a construction area of the constructed shallow-buried excavation tunnel from back to front; 3) monitoring the deformation. The method provided by the invention has the advantages of simple steps, reasonable design, convenience in construction, good use effect and capability of effectively monitoring the stability of the constructed shallow-buried excavation tunnel and the ground surface settlement.
Owner:CHINA RAILWAY 20 BUREAU GRP

Creep age forming method for aluminium alloy plate

ActiveCN106978578AReduce distanceReduce laying processVacuum pumpingTest material
The invention provides a creep age forming method for an aluminium alloy plate. The method comprises the steps as follows: a to-be-formed component is arranged on the molded surface of a mold firstly, and parts (the whole lower surface and the peripheral edge of the upper surface) of the component are covered with air-permeable felt; a plate is bent downwards by a mechanical loading device, and the mechanical loading device stops moving downwards after reaching the set force value; the load is unchanged, at least one circle of a sealant is sequentially bonded to the component and the edge of the mold, a vacuum bag is laid and bonded between the sealants, a closed space is formed, vacuum pumping treatment is performed, and the component is almost attached to the molded surface of the mold as far as possible or is kept to be attached to the molded surface of the mold; and then the mechanical loading device is detached, the component and the mold are placed into an autoclave for vacuum creep age forming, and the component and the mold are separated after ageing is completed. With the method, the time required for vacuum pumping is shortened, so that the forming efficiency is improved; less test materials are used, and thus the test cost is reduced; and the mold attaching error is reduced, and accordingly, the forming precision of the component is improved.
Owner:CENT SOUTH UNIV

Survey method for audience rating of digital television users

InactiveCN102368831ADeepen understandingCurbing the Behavior of "Fake" RatingsSelective content distributionData acquisitionMaterial resources
The invention discloses a survey method for an audience rating of digital television users. The method is characterized in that the method comprises the following steps that: a data collection step in which a data collection module is internally arranged on a middleware of a digital set-top box and is responsible for collecting user viewing behavior data; a data transmission step in which the digital set-top box is connected with an Internet network by a built-in Bluetooth or an externally connected network card and transmits the data to a server having a public network IP; a data storage process in which the server receives the data and then the data are parsed and stored to a database; a data analysis process in which the server carries out automatic analysis and statistics on the data; and a data presentation process in which a client invokes a server to carry out calculation and analyses on all indexes of the audience rating and present data of data analysis results of the reviewing behaviors. According to the invention, a set-top box with two-way transmission is supported; and user viewing behavior data is transmitted from an Internet or a metropolitan area network to a server; therefore, compared with the traditional survey mode, the survey method provided in the invention has advantages of high real-time performance, high accuracy and low cost and the like; moreover, lots of manpowers, material resources and financial resources are saved.
Owner:INNER MONGOLIA ZHONGDA MEDIA DEV
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