旺市民宅区发生大面积地陷

我以前一提这事，就会被论坛人怼。 俺现在从心，不提了，随便你们买去。 再提一句，那附近的加油价还是略爽的，毕竟有补贴。

回复 paclcui：这是旺市市府网站上有关那个垃圾填埋场的信息, 不是老张造谣. 太多的人不知道旺市的历史, 就图便宜去买房. The Keele Valley Landfill was located at the intersection of Keele Street and McNaughton Road in Maple, and was the largest landfill in Canada and the third-largest in North America at one time. Owned and operated by the City of Toronto, the landfill originally consisted of a gravel pit that was purchased for approximately $40 million in the 1970s. It was the main landfill site for the City of Toronto and the municipalities of York and Durham from 1983 to 2002.

回复 加拿大老张：我是看的Wiki，互联网是有记忆的 https://en.wikipedia.org/wiki/Keele_Valley_landfill 1995 paper by R.K. Rowe.

大面积地陷是地下土质疏松的一个严重表现, 土质疏松更多的表现是房子倾斜或沉降不均匀的裂缝, 有的要10年20才能看得出来. 垃圾填埋场的土质再怎么压实也很难做到自然粘土地的结实程度.