Transverse joints in arch dam construction severely affect the safety

efficiency

and economy of the project. The utilization of low-heat cement concrete as dam body filling provides a basis for construction of an arch dam without transverse joints due to its low thermal stress

but it will suffer a great risk of dam cracking if conventional temperature control is adopted. To avoid the risk

this paper constructs a temperature stress surrogate model for modeling low-heat cement concrete-filled arch dams without transverse joints

examines the calculation method of failure strength under thermal stress conditions. For this concrete

we also examine its strength reduction and work out a new method for intelligent control of its temperature. Results show that the new method offers the feasibility of arch dams without transverse joints

through taking full consideration of strength reduction caused by concrete creep effect. It can achieve the goal－eliminating transverse joints in arch dams

ensuring structural safety

and improving construction efficiency.