1、K0+262.276 深度=0.514-(262.276-260)*(0.514-0.472)/(280-260)=0.5092204K0+262 深度=0.514-(262-260)*(0.514-0.472)/(280-260)=0.5098K0+276 深度=0.514-(276-260)*(0.514-0.472)/(280-260)=0.4804。