In monitoring for uranium tailing, wireless sensor network (WSN) is superior to traditional line layout. Due to energy constraint, it is necessary to use energy efficiently in routing. After analyzing low energy adaptive clustering hierarchy (LEACH) and geographical adaptive fidelity (GAF) algorithms, an improved routing algorithm based on intersecting circle amd GAF is proposed. It uses location information of nodes and intersecting circle model to separate monitoring areas into a grid of circle. Cluster heads selection is carried out with sur...