已知岩样的容重 =22.5kN/m³，比重<img src="https://nimg.ppkao.com/2018-07/yuanhao/2018072017042190492.jpg?sign=a223e1d182d253432fd8ae3050984679&t=62d0249d" />，天然含水量&#160;<img src="https://nimg.ppkao.com/2018-07/yuanhao/2018072017043671087.jpg?sign=c034b8aaeaa63ba3585918f5efc4f4ef&t=62d0249d" />，试计算该岩样的孔隙率n，干容重<img src="https://nimg.ppkao.com/2018-07/yuanhao/2018072017044798407.jpg?sign=97580355661dd81e908b1e8dee379d71&t=62d0249d" />及饱和容重<img src="https://nimg.ppkao.com/2018-07/yuanhao/2018072017045030037.jpg?sign=ba3027dfc43ad54f9c3ff5b4917af0bc&t=62d0249d" />。