Yong Qiao

Jun 17, 2024 | mdpi.com | Jia Yuan |Jianhui Si |Yong Qiao |Wenshuo Sun

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Apr 24, 2024 | mdpi.com | Yong Qiao |Jianhui Si |Jia Yuan |Yi Wang

1. IntroductionA lime-sand pile is a pile made of a mixture of three materials, namely lime, sand, and soil, which have a high degree of water absorption. When the lime-sand pile absorbs water, the quicklime in it undergoes a hydration reaction and is converted into calcium hydroxide (Ca(OH)2). This process absorbs water and generates a lot of heat.

Jul 25, 2023 | mdpi.com | Yong Qiao |Li Du |Shaohua Li

Abstract:The karst fissures of the carbonate thermal reservoir in Xiong’an New Area have developed, and they have the advantages of a concentrated distribution, shallow burial, large water volume, and easy recharge, which are conducive to the development and utilization of geothermal resources.