English：

Based on the project of Xiong’an International Trade Center, the overlap reliability betweendifferent waterproof materials used in underground engineering is studied. The water resistance, thermalaging, corrosion resistance and frost resistance tests were carried out to analyze the water impermeabilityand joint peeling strength of waterproof materials, and the safety and reliability of overlap joints ofdifferent waterproof materials were verified. The research results show that the waterproof layer of thebasement bottom plate can meet the requirements of the specification by using bonding overlap and specialtape overlap. When the waterproof layer of the basement side wall is overlapped with the waterproof layerof the bottom plate, it is more reliable to use the high-viscosity anti-skid water-based asphalt waterproofcoating bonding overlap （ overlap mode Ⅳ）。 It is more reliable to use hot melt overlap and high-viscosityanti-skid water-based asphalt waterproof coating bonding overlap （ overlap mode Ⅶ） for basement topplate and side wall membrane.