About the author:

1. School of Civil Engineering,Chongqing University, Chongqing 400045,China;2. The Second Construction Co., Ltd. of China Construction Third Engineering Bureau,Wuhan, Hubei 430074,China

Abstract:

Against the backdrop of the global energy transition and carbon neutrality targets, concentratedsolar power （CSP） shows strong potential for deployment in desert regions due to its capability for large-scale thermal energy storage and stable power output. However, extreme environmental factors such ashigh temperature, strong winds, frequent sandstorms and complex geological conditions put forwardhigher requirements for the construction technology and engineering reliability of key structures andequipment of CSP plants. Based on the Dubai 700MW CSP + 250MW photovoltaic （PV） hybrid powerproject, an integrated set of construction technologies is presented, including automated sand stabilizationusing a self-developed curing agent, square-to-circular heat absorption tower construction under high-temperature conditions, overall sliding and high-elevation positioning of an ultra-large heat absorber,rapid and precise layout with digitalized installation for a large-scale heliostat field, and construction ofhigh load bearing thermally insulated foundations for molten salt heat storage tanks. Engineering practiceindicates that these technologies provide strong construction adaptability, structural safety, andengineering reliability in extreme desert environments, significantly improving construction efficiency andqualitywhile reducing risks and overall costs.