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1. Introduction Click to copy section linkSection link copied! Sandstone is a sedimentary rock formed by dissolution, alteration, compaction, and cementation in a certain period of geological history, mainly composed of weak cementation materials such as medium fine sand particles and clay particles. The main mineral components of sandstone are quartz and feldspar, which belong to a type of weakly diagenetic rock.
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Abstract : In recent years, the smart city concept has developed rapidly and has gradually become the most popular urban concept. However, the advent of the new century has been accompanied by the emergence of many other emerging city concepts. For these emerging urban concepts, such as a resilient city, low-carbon city, sponge city, and inclusive city, it needs to be clarified how these concepts relate to a smart city.
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