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Caiyuanba bridge river bridge group spacing and navigation conditions

Author: LinQiao
Tutor: ChenMingDong
School: Chongqing Jiaotong University
Course: Hydraulics and River Dynamics
Keywords: River bridge group Bridge spacing Navigation conditions Model test
CLC: U442.54
Type: Master's thesis
Year: 2010
Downloads: 49
Quote: 2
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Abstract


Mountain River has a curved , narrow, high velocity , slope and other characteristics , the river floods soared shoved off , the water level and flow range is large . Led channel conditions are poor , ship navigation and other seasonal characteristics very prominent. In addition, with the rapid development of the national economy and the growing demand for transportation facilities increased connectivity mountain rivers River Bridge Crossing the River transportation network have continued to increase the number to its navigation safety brings new problems, such as the crossing the \The completion of such projects will be varying degrees of deterioration and navigable waterway conditions , increasing the difficulty of navigating the ship , the ship hit the bridge easily induced accidents . For the location and layout of the bridge group , \navigation conditions vary greatly, for spacing requirements will be different, \With the recent rapid increase in the number of bridges and bridge spacing constantly reduced, which may make some of the navigation bridge has been built there is a certain security risk. So the bridge group bridge area of river navigation conditions as well as the siting and layout of the bridge group research has become increasingly urgent. In this study, the use of physical models and ship model test method, relying on the Yangtze river bridge Caiyuanba Bridge group before and after the flow channel conditions and the ship sailing characteristics simulation and analysis , in order to form a small span bridge bridge group bridge site and the bridge span arrangement research methods were refined and made a pilot river bridge under the constraint of the existing bridge built right across the bridge and the bridge spacing layout scheme , the results of similar groups navigable river bridge spans the siting and layout with certain decision making and technical guidance , to prevent river bridge group bridge the distance between the bridge span is too small or unreasonably affecting the ship sailed laid and bridges safe.

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CLC: > Transportation > Road transport > Bridges and Culverts > Investigation, design and calculation > Bridge Design > Designed to compare the program , the selected bridge
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