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京沪高速铁路全线以桥梁形式为主,在桥梁跨越既有公路时,必然涉及到对既有公路的影响,为了避免可能造成既有路基的沉降,通过对既有公路的沉降分析结合公路施工的相关规范确定了高速铁路承台施工措施来指导施工,最后通过沉降计算验证得出,所采取的施工措施能有效地防止既有路面的沉降,保证既有公路的安全通畅。
In order to avoid the possible settlement of existing subgrade, when the bridge crosses the existing highway, the influence of the existing highway must be involved. Through the analysis of the settlement of the existing highway combined with the construction of the highway The relevant norms determine the construction measures of high-speed railway platform to guide the construction, and finally through the settlement calculation and verification obtained by the construction measures can effectively prevent the settlement of existing road surface to ensure the safety of existing roads smooth.