The Xiong'an New Area is a special economic zone established in 2017.In order to ensure the safe construction of underground projects in the Xiong'an New Area,it is necessary to study the deformation characteristics of its underground strata and to provide basic data for the evaluation of the deep three-dimensional geological structure and stability of the Xiong'an Area.For the Niutuozhen Uplift in the Xiong'an,we used the balanced profile technology and 2D Move software to restore the seismic profile of the Niutuozhen Uplift,and quantitatively calculated the lateral extension amount and relative extension rate of the Cenozoic strata in and around the Niutuozhen Uplift,as well as the vertical stratigraphic compressibility and compression rate.The research shows that the fastest period of transverse tensile deformation in the Niutuozhen area is the Kongdian Formation-the fourth member of the Shahejie Formation,with an extension rate of 0.513 7 mm/a,and the slowest period is the Guantao Formation-Pingyuan Formation,with an extension rate of 0.017 mm/a,and the tensile extension in Niutuozhen area is gradually weakened from the Paleogene to the Neogene.The strongest period of longitudinal compaction and diagenesis in the Niutuozhen area is the Kongdian Formation-the fourth member of the Shahejie Formation,with a compression rate of 42.5 m/Ma.The Kongdian Formation-the fourth member of the Shahejie Formation is the largest period of horizontal and vertical strata deformation in the Niutuozhen Uplift area.The restoration process is accurate and quantitative,which can provide a accurate reference for the creation of underground 3D geological structure and the evaluation of geological stability.
quantitativebalanced profile technologystructural restorationNiutuozhen UpliftXiong'an Area
NETL
NSTL
万方数据
