水工混凝土结构腐蚀检测与评估方法

摘要

水工混凝土结构在环境侵蚀、材料老化和物理力学性能的改变、突发事变过载等因素的综合作用将不可避免地导致结构损伤的不断演化,直接影响其工作性态,并致使结构的强度、稳定性和耐久性等重要安全性能指标下降,抵抗自然灾害的能力降低,影响其正常工作的能力,甚至发生结构性破坏.因此,在设计确定的环境作用、实际运行的条件和规定的维修使用条件下,对现存水工混凝土结构的腐蚀状况进行检测、分析和评估诊断,合理评价水工混凝土结构在合理使用年限内的适用性和结构安全性,分析水工混凝土结构腐蚀后的剩余使用年限,显得尤为重要.本文论述了水工混凝土结构腐蚀检测的基本程序和要求、检测依据和内容、腐蚀评估方法和剩余使用寿命评价方法,为水工混凝土腐蚀结构检测和评估提供参考和依据.%The evolution of hydraulic concrete structure in comprehensive effect of environmental erosion,material aging and physical mechanical properties change,overload incidents and other factors will inevitably lead to structural damage,directly affects the working state,and cause the decline of structural strength,stability and durability and other important safety performance indicators,reduce the ability to resist natural disasters the ability to influence the normal operation,even structural damage.Therefore,within environment effects determined by designing,actual operation conditions and the provisions of maintenance conditions,detecting,analyzing and evaluating are presented inevitable for corrosion status of existing concrete structures,serviceability and structural safety in reasonable using life are appraised,and remaining using life is calculated.Corrosion of hydraulic concrete structure detection basic procedures and requirements,detection and assessment methods and contents,corrosion residual life evaluation method are introduced in the paper,and detection and evaluation for the corrosion of hydraulic concrete structure is provided for similar engineering.