When　tunneling,　the　disturbance　induced　by　construction　necessarily　inevitably　destroys　the　intrinsic　stress　and　seepage　balance　of　geotechnical　material　followed　by,　causing　ground　surface　movement　and　deformation　which　affects　safety　of　the　ground　construction　and　the　normal　operation　of　underground　pipeline　directly.　This　paper　analyses　and　studies　surface　settlement　from　the　angle　perspective　of　fluid-solid　coupling　theory,　addresses　applies　numerical　simulation　with　FLAC3D,　and　compares　the　result　of　numerical　simulation　with　the　measured　curves.