Quaternary Depositional Framework of the Xiong’an New Area: A 3D Geological Modeling Approach Based on Vector and Grid Integration

Jixiang Zhu,Qian Wang,Guanghui Zhang,Xiaoyuan Zhou

doi:10.3390/su14063409

Abstract

The Quaternary stratigraphic unit is an important underground space resource for sustainable urban development. It is of great significance to understand the spatial variation characteristics of the Quaternary stratigraphic structure and its internal attributes. However, due to the openness and complexity of the Quaternary sedimentary environment, the sedimentary characteristics of Quaternary stratigraphic units are often very complex and difficult to accurately analyze. In this study, a method for analyzing Quaternary sedimentary characteristics via 3D geological modeling based on vector and grid integration is proposed. Based on this method, the Quaternary depositional framework of Xiong’an New Area is established. The results show that the study area is mainly composed of seven Quaternary strata with different sedimentary origins, and the 3D spatial variation characteristics of lithology in each stratum are unique. Taking the vector framework model as the constraint boundary, this study constructs the lithology stochastic model of each Quaternary stratigraphic unit respectively, and accurately simulates the 3D spatial variation characteristics of the inner lithology of Quaternary stratigraphic units in the study area, which is of great significance for the urban planning, construction, and environmental protection of Xiong’an New Area.

Highlights

Accepted: 11 March 2022The underground space resources are essential for sustainable development of cities [1–5]
A 3D geological model with smooth geological boundaries was condistribution characteristics of each stratum (Figures 6 and 7), and so it has clear geological structed using vector modeling (Figure 4), which can be represented by the 3D spatial significance
The 3D geological structural model of Quaternary stratidistribution characteristics of each stratum (Figures 6 and 7), and so it has clear geological graphic structure is used as the constraint boundary in the stochastic simulation, and it can significance

Summary

Introduction

Accepted: 11 March 2022The underground space resources are essential for sustainable development of cities [1–5]. As the Quaternary stratigraphic areas are one of the most important places for human activities [6,7], the sedimentary evolution process of them controls the spatial variation characteristics of the internal hydrogeological [8,9] and engineering geological attributes [10] of the Quaternary stratigraphic area, restricting the development and utilization of urban underground space resources, and having an important impact on urban planning [11,12], infrastructure construction [13,14], groundwater exploitation and protection [15,16], and geological disaster prevention and control [17,18], etc It is always one of the most important works of urban geological surveys and research to analyze the spatial variation characteristics of the Quaternary stratigraphic unit [19,20]. The macroscopic geological research mainly aims at the Published: 14 March 2022

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Discussion

Conclusion