With the development of bridge construction in China, disease bridges became more and more, bridge reinforcement became a important topics facing the bridge workers. Shi-Yan line (S335) Shuigou Bridge is a stone arch bridge of 5-20 meter, diseases such as stone arch ring crack, break, endanger the bridge operations seriously, in order to ensure bridge structure stable, enhance its carrying capacity, save money, improve effectiveness, using anchor spray combine arch rib reinforce technology strengthen this bridge. The author point out that set arch rib in original arch ring, between ribs anchor sprayed concrete, this construction technology is not only to overcome the construction difficult and large self weight of traditional method of set full arch ring, but also overcome the disadvantages of bad bearing capacity of overall bolt and shotcreting technology. It can be used for repair reinforcement and reconstruction of stone arch bridges and concrete arch bridge.
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