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The foundation of the main pier of Changtai Yangtze River Bridge is a new type of anti scour stepped open caisson, which is the largest open caisson in China at present. The maximum depth of the open caisson is 48m. It must pass through hard plastic clay, dense sand layer and clay dense sand interbed. The foundation of the open caisson is of steel shell concrete structure, and the shaft wall is filled with concrete, and the sinking of the shaft is conducted.
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Deep well reaming suction construction of Changtai river crossing passage.
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The company lead in developing and successfully exporting a set of seabed mining robots with a daily output of 500 tons, which are used in the submarine amber mining operation in the Baltic Sea of Russia. The product adopts the company's original filtering mining sorting technology to realize the one-time completion of mining and sorting process, and the operation is efficient and stable. This is the first successful commercial subsea filtering mining robot in the world.
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The twin cutter suction machine of underwater hydraulic power station is a kind of underwater soil sampling equipment used for cleaning and excavating underwater hard soil layer, clay layer and pebble layer.
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The underwater dredging robot realizes the construction operation of "no man going down the well, no road excavation, no water cut-off and no mud falling on the ground", which not only improves the efficiency of dredging, but also effectively solves the safety problems brought by dredging.The underwater dredging robot is designed with super small body and waterproof cable. The diving depth can reach 50m The machine is pushed forward and concentrated to the suction port through the sludge recovery device. The sludge is sucked in by the suction pump and discharged by the sewage pump. Walking in the sludge has a large pulling force and is durable. Equipped with high-definition muddy water network camera, it can observe the condition of the inner wall of the pipeline in all directions.
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Based on the current maintenance requirements of cascade hydropower stations in the basin, the underwater multi functional operation machine is developed and manufactured as a special cable type robot for underwater maintenance of hydropower stations, which can enter and leave the reservoir area, tail water, flow channel, culvert and other environments. The main unit carries the multi functional carrying parts such as underwater camera, navigation sonar, side scan sonar and ultra short baseline positioning, which can realize underwater positioning, self examination and acoustic inspection. The whole system adopts the original way of combination of multiple adding layers, including the mechanical arm layer, cleaning and grinding layer, sub machine layer and track layer. According to the actual needs, the main unit can be used with single or two layers of adding layer respectively, which is convenient for disassembly and assembly. It can integrate camera, sonar scanning, salvaging, obstacle clearing, cleaning, polishing, shearing, pipeline inspection and other functions. Practical underwater maintenance functions can replace divers to a certain extent to ensure personal safety and improve work efficiency.
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The underwater detection system of large-diameter and long diversion tunnel can monitor the growth of marine organisms, sediment accumulation and other environmental parameters in the tunnel during the operation of the water intake tunnel, and obtain the distribution and growth assessment of marine organisms in the tunnel, so as to provide basic data and decision-making basis for subsequent tunnel maintenance, tunnel cleaning and marine biological protection.
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It is necessary to carry out quality inspection on the underwater part of the bridge pier in order to provide the basis for the annual maintenance of the bridge.
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According to the underwater structure of a power station, the underwater machine should be used to scan and photograph in the 1900 m deep underwater water conveyance channel. Ensure that the function of the whole set of equipment can meet the inspection and maintenance needs of large longitudinal and deep-water underwater transmission channel, and replace the diver to realize underwater operation to a certain extent.
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In order to meet the increasing demand of underwater detection, the underwater robot detection system is mainly used for underwater defect high definition inspection, leakage detection, daily inspection and so on. The system consists of ROV host, umbilical cable, console and inspection system. The inspection system mainly includes high definition camera, low illumination black and white camera, multi beam image sonar and laser scale instrument,etc.
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Application in Wuxi Municipal Pipeline Inspection and Maintenance.
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Applied to underwater capture of local marine crafts in South Africa.
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