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直线防撞墙的放线应以直线两端定位桩控制
直线防撞墙的放线应以直线两端定位桩控制，架仪器于定位桩穿直线，以确保直线线形，而若采用坐标放样，因误差影响，所放样桥轴线点可能会下在同一直线上。
The alignment of the straight-line anti-collision wall should be controlled by the positioning piles at both ends of the straight line, and the instrument should be erected at the positioning piles through the straight line to ensure the linear alignment. If coordinate lofting is adopted, due to the influence of errors, the axes of the lofting bridge may fall on the same line.
曲线桥防撞墙的施工放样应根据平曲线半径的大小进行加密放样，一般R<500时，加密点宜1-2米测设一点，假如半径较大，则加密桩距可适当加钢制闸门 钢坝 保定轻钢别墅 保定平面设计培训 保定室内设计培训 保定办公家具 大，但不宜大于5米。单向道每断面的线形控制放样点宜最少两点，有中央分隔带的桥梁每断面不得少于4点，左、右幅各2点，这样就比较有利于线形控制。
The construction lofting of anti-collision wall of curved bridge should be encrypted according to the radius of horizontal curve. Generally, when R < 500, the encrypted point should be 1-2 meters. If the radius is large, the distance between encrypted piles can be increased appropriately, but it should not be greater than 5 meters. The linear control lofting points of one-way road should be at least two points per section, the bridge with central dividing zone should not be less than four points per section, and the left and right sides should be two points each, which is more conducive to linear control
The alignment of the straight-line anti-collision wall should be controlled by the positioning piles at both ends of the straight line, and the instrument should be erected at the positioning piles through the straight line to ensure the linear alignment. If coordinate lofting is adopted, due to the influence of errors, the axes of the lofting bridge may fall on the same line.
曲线桥防撞墙的施工放样应根据平曲线半径的大小进行加密放样，一般R<500时，加密点宜1-2米测设一点，假如半径较大，则加密桩距可适当加钢制闸门 钢坝 保定轻钢别墅 保定平面设计培训 保定室内设计培训 保定办公家具 大，但不宜大于5米。单向道每断面的线形控制放样点宜最少两点，有中央分隔带的桥梁每断面不得少于4点，左、右幅各2点，这样就比较有利于线形控制。
The construction lofting of anti-collision wall of curved bridge should be encrypted according to the radius of horizontal curve. Generally, when R < 500, the encrypted point should be 1-2 meters. If the radius is large, the distance between encrypted piles can be increased appropriately, but it should not be greater than 5 meters. The linear control lofting points of one-way road should be at least two points per section, the bridge with central dividing zone should not be less than four points per section, and the left and right sides should be two points each, which is more conducive to linear control
