Green Construction Grade Evaluation of Large Channels Based on Uncertain AHP-Multidimensional Cloud Model

(1) Background. With the increasing national investment in infrastructure in recent years, water conservancy construction has been developed rapidly, which has greatly improved people's living standards, but at the same time, the damage to the environment and the waste of resources caused by construction is becoming more and more obvious. In the prospect of sustainable development, the application of a complete set of green construction evaluation system is imminent. (2) Methods. This paper takes the green construction of large channels as the research object, takes the Green Building Evaluation Standard (GB/T 50378-2019) as the guideline, takes the control items of "safety and durability, health and comfort, resource saving, environmental livability, improvement and innovation" in the Standard as the construction reference system, and combines the construction characteristics of water conservancy projects. It determines the evaluation index and carries out green construction grade evaluation by uncertain AHP (hierarchical analysis)-multidimensional cloud model. (3) Results. The green construction grade evaluation of large channels was carried out with the example, and the final green construction grade evaluation result of "three stars" was obtained. (4) Conclusions. The evaluation results are consistent with the traditional AHP (hierarchical analysis)-cloud model, but the evaluation model proposed in this paper takes into account the fuzziness, randomness and correlation among the evaluation factors, which is more in line with the actual situation. It plays a guiding role for the green construction of large channels.