考虑碳排放的地下洞室群施工资源动态均衡优化

Dynamic equilibrium optimization of construction resources for underground cavern group excavation considering carbon emission

在中国“双碳”目标的背景下,持续推进地下洞室群等大型工程施工快速向低碳、绿色方向转型是当前面临的焦点问题。为了保证地下洞室群施工资源合理配置,实现绿色低碳施工,提出了一种衡量施工期碳排放均匀程度的指标“碳熵”,结合“资源熵”作为资源均衡的度量,建立了考虑碳排放和资源配套施工的资源均衡优化模型,并设计了一种内点算法进行求解;在此基础上构建了考虑施工进度延误条件下的资源动态优化流程,以确保发生风险事件后施工资源配置能得到及时优化与调整。乌东德水电站工程实例应用表明:该模型准确有效,可以提高资源总体均衡程度,降低施工期的资源投入峰值和碳排放峰值,从而提高资源配置效率。

In the context of achieving China′s carbon peaking and carbon neutrality goals,it is a focus problem to continuously promote the rapid transformation of large-scale construction projects such as underground cavern group to low-carbon and green directions.In order to ensure the rational allocation of construction resources of underground cavern group and realize green and low-carbon construction,an index named“carbon entropy”was proposed in this paper to measure the uniformity of carbon emissions during construction.With“resource entropy”as a measure index of resource balance,a resource balance optimization model considering carbon emissions and resource supporting construction was established,and an interior point algorithm was designed to solve it.On this basis,a dynamic resource optimization process considering construction schedule delay was constructed to ensure that resource allocation can be optimized and adjusted in time after risk events.This model application in Wudongde Hydropower Station showed the model was accurate and effective,which can improve the overall balance of resources,reduce the peak value of resource input and carbon emission during the construction period,and improve the efficiency of resource allocation.