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Yangtze River Bridge-scale discussion of navigation

Rafts and piers when the impact speed, X13 / $. The speed of the vessel data provided by channel sector, on the raft can be shipped to the rafts on the water flow rate of | mouth one by one vessel or raft and Pier approaching the point of impact at the direction of the tangent of the angle into should be based on specific conditions and, if difficult, can be port = 20. One by one vessel or raft heavy weight, kNIC-, C: one by one vessel or raft-shaped deformation of the elastic coefficient and the piers of the missile-shaped deformation coefficient. Lack of information can be assumed that CI + CE0.0005m/kN. The role of a high impact force should be based on specific conditions, the lack of information, can be navigable water level height. Highway Code for trespassing vessel or floating tough press-type of attacks estimated lP. A (kN) (4) where floating objects one by one gravity (kN), river rafting material should be based on conditions determined by the actual investigation} - a water flow rate (/ s)} one by one hit from time to time (s), estimates should be based on actual data. R in the absence of actual data one by one for general use l0} gravity 9.81 (mls). From the two equations can be seen that the formula for the bomb-shaped rail formula evolved by boat or highway formula Department acting on piers and rafts the effective kinetic energy are transferred into static function _ calculation assumptions. Two equations are estimated equation, the exact impact force can not serve as the basis. It is reported that the main Tongling Yangtze River Highway Bridge Pier Body only consider five thousand tons seagoing ship impact surface fleet is not considered the impact force. As a port inspector administration departments, in order to protect the safety of the bridge, only slightly more than five thousand tons seagoing limited by the bridge, as before, and thirty thousand = thousand tons a moving fleet and future fleet of nearly five million tons of whether bridge, there is no basis,[link widoczny dla zalogowanych], even the Yangtze River's main fleet of about 2640 horsepower pushing around fourteen thousand tons of the ship lying on the heap to allow the bridge also. Therefore, interruption or deterioration in accordance with the provisions of navigation conditions, the construction unit or individual damages, and within the prescribed period for the restoration of navigation. In this way, the bridge unit is a heavy price, as the State can not be timely delivery of important goods caused by the loss is enormous. Because the formula is to estimate the impact force,[link widoczny dla zalogowanych], the surface fleet, the impact force and there is no formula, in order to bridge the security,[link widoczny dla zalogowanych], the need for the development of the existing fleet and the largest fleet in the larger, fifteen thousand tons in a variety of seagoing vessels state of the ship model test case to test results as the construction of a bridge safety assurance, the Ministry should set technical regulations for this guillotine. Its help, cross the bridge in order to ensure safety of the ship navigation channel pier (column) must be set anti-collision devices. Wuhan Institute of Science and Technology Ministry of Railways has specialized in the column title. Third, the bridge must be set to maintain the safety of the monitoring stations, boats, navigation mantis, boat, ship safely through the bridge of the radar navigation station and ancillary facilities, communications, transport,[link widoczny dla zalogowanych], aids and other facilities, and other routine maintenance costs. Caused by the beams of the bridge channel siltation, as required by the bridge unit is responsible for clearing silt and restore navigation. Build water projects, must comply with the provisions of the basic technical building national procedures and other relevant regulations. Involving the interests of other regions and industries, the construction unit must advance to the area and part of September for comments. Construction of the bridge beams in the feasibility study, the research results, first (final) assessment will, design review and a series of procedures, in the Yangtze River,[link widoczny dla zalogowanych], Yangtze River Navigational Authority to participate in addition, it must also have supervision of the Yangtze River Port Authority indigo, Yangtze River Waterway Bureau and the Yangtze River Shipping Corporation, Wuhan, China Ocean Shipping Agency efforts to the company's representatives. The construction of bridges in the Yangtze River should be just enough to the needs of shipping, taking into account water conservancy, railways, roads, fisheries and other sectors of interest is appropriate units. Should make the world a rare Yangtze River Gold Ice Road can fully benefit. Reference Man Lei 'l Wuhan Yangtze River Scientific Xiao Long lI8I. = Like Dan Changjiang Highway Bridge argue the case of fixed-bed model of pull-Square test briefing held on the Yangtze River shaking homes. 11,8 l-1C-18} modifications are standard. National Inland Navigation Standard (approval lotus). 1587 'of the Yangtze River Bridge together drum contingent to navigation clearance straight minutes of standard. 1984. Olf. 1I (on the next page 86) with a gravel layer, asphalt shake sand, asphalt mixing station and other materials. Not only as a middle layer for resurfacing of the cushion, to ensure the stability of the road, but also filled the old road bump and reduce costs. The middle layer, high temperature construction, the old road surface should be sprinkled in enough water Lan wet. Re-use of continuously reinforced concrete Lu Luo surface, middle layer is appropriate to use hot asphalt. Hu Shifeng Quoted IGuidetoConcreteReusffac - lugandSelectionCrJtefia (I ~ B087.01P). 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