请问as much as she had在这里是什么成分

Lu
Lucy’s new job是主语,paid是谓语,twice是宾语,as much as she had made working in the restaurant.是形容词短语 作后置定语 working in the restaurant是现在分词做伴随状语,
twice as much as是固定句型 表示倍数 后面可以跟从句 she had made
一般可以把as much as引导的从句看作状语从句
但实际上 这里 第二个 as是关系代词 引导的是 定语从句 as 作 定从中has made 的宾语
再如 as many children as came 所有来的孩子们