When an existing structure is underpassed by a tunnel at close range,the structure will be disturbed and its safety operation will be threatened.Based on specific engineering case,tunnel construction measurements are proposed when high voltage towers are underpassed.At the same time,rules of horizontal displacement and vertical settlement of the towers are revealed.The research results can provide references for tunnel underpassing engineering and ensure the safety of adjacent structures above the tunnel.
TunnelUnderpassHigh Voltage TowerHorizontal DisplacementSettlement