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1概述（病害状况）鸡西工务段管内城鸡线633＋000m桥是1941年日伪时期建成的无支座钢筋混凝土π型梁桥．桥全长166．40m，由15孔9．37mπ型梁组成，桥上平坡、直线．经过50多年使用，现在病害较多，比较严重的是矿与16#台上的两孔梁端剥落掉块，掉块呈三角型，见图1．梁内钢筋
1 Overview (Disease Status) Jixi Piping City Pipeline 633 + 000m Bridge is built in 1941 during the pseudo-pseudo-non-supported reinforced concrete π-type beam bridge. The total length of the bridge is 166.40m, which consists of 15 holes of 9.37mπ type beam, with flat slope and straight line on the bridge. After more than 50 years of use, the disease is now more serious. The serious problem is that the two ends of the mine and 16 # pedestal are exfoliated and the block is triangular, as shown in Figure 1. Beam reinforced