Three-dimensional modeling of fault geological structure using generalized triangular prism element reconstruction

Liu, Huan; Li, Weitao; Gu, Shuang‐Xi; Liu, Cheng; Wang, Yanxia; Xu, Jianhui

doi:10.1007/s10064-023-03166-8

Cited by 8 publications

(3 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The GTP voxel can be deformed for complex geological conditions to simulate complex geological structures such as faults, bifurcations, and pinchouts 29 . The utilization of GTP demonstrates its efficacy in accurately aligning the spatial distribution patterns of geological strata while safeguarding the coherence and uniformity of the model's data framework 30 . The interior of the model is filled with triangular prism volume elements, which ensures the simulation accuracy of the top and bottom plane interfaced and reduces the amount of model data.…”

Section: Modeling Methods Based On MD and Gtp Hybrid Modelmentioning

confidence: 99%

Refined Integration of Multilayer DEM-GTP-TEN for Three-Dimensional Quaternary Geological Modeling: A Case Study in Nantong City, China

Hou,

Ye,

et al. 2024

Preprint

View full text Add to dashboard Cite

Refined three-dimensional (3D) Quaternary geological modeling can reveal the spatial and geological structures of strata from a 3D perspective, an essential subject in the current research in Quaternary geology and 3D GIS. The primary challenge in Quaternary geological modeling lies in the substantial discontinuity and heterogeneity of Quaternary strata, which have undergone multiple depositional events, resulting in complex and variable stratigraphic structures that are difficult to accurately model and analyze. Consequently, we have developed the MD-GTP-TEN hybrid modeling method, which integrates multi-layer DEM (MD), generalized prism (GTP), and tetrahedral mesh (TEN) elements to achieve refined 3-D modeling of the spatial structure and geological architecture of Quaternary strata. This study validated the accuracy of the model using geological parameters specific to Nantong City, a coastal region in eastern China. The research validation demonstrated an average error of 3.05m for strata burial depth and 2.42m for layer thickness, indicating that the model effectively reflects the spatial structure and geological architecture of Quaternary strata in the area. This confirms the reliability and accuracy of the model in a 3-D environment. Therefore, the MD-GTP-TEN hybrid modeling method can accurately simulate Quaternary strata, providing theoretical and technical support for the study of geological hazards such as landslides, debris flows, and ground subsidence.

show abstract

Section: Modeling Methods Based On MD and Gtp Hybrid Modelmentioning

confidence: 99%

Refined Integration of Multilayer DEM-GTP-TEN for Three-Dimensional Quaternary Geological Modeling: A Case Study in Nantong City, China

Hou,

Ye,

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…These methods are crucial for modeling ore bodies and have been improved to address issues such as building complex models of ore bodies [12,13]. TIN has proven to be effective in creating surface models of strata [14,15]. On the other hand, GTP is great for quickly and accurately fitting complex geological bodies like faults and lenses [15].…”

Section: Introductionmentioning

confidence: 99%

“…TIN has proven to be effective in creating surface models of strata [14,15]. On the other hand, GTP is great for quickly and accurately fitting complex geological bodies like faults and lenses [15]. However, GTP requires that the strata of the same geological layer be divided into multiple GTP units, which means that the GTP model has more data components than the TIN model.…”

Section: Introductionmentioning

confidence: 99%

Efficient Construction of Voxel Models for Ore Bodies Using an Improved Winding Number Algorithm and CUDA Parallel Computing

Liu,

Sun,

et al. 2023

IJGI

View full text Add to dashboard Cite

The three-dimensional (3D) geological voxel model is essential for numerical simulation and resource calculation. However, it can be challenging due to the point in polygon test in 3D voxel modeling. The commonly used Winding number algorithm requires the manual setting of observation points and uses their relative positions to restrict the positive and negative solid angles. Therefore, we proposed the Winding number with triangle network coding (WNTC) algorithm and applied it to automatically construct a 3D voxel model of the ore body. The proposed WNTC algorithm encodes the stratum model by using the Delaunay triangulation network to constrain the index order of each vertex of the triangular plane unit. GPU parallel computing was used to optimize its computational speed. Our results demonstrated that the WNTC algorithm can greatly improve the efficiency and automation of 3D ore body modeling. Compared to the Ray casting method, it can compensate for a voxel loss of about 0.7%. We found the GPU to be 99.96% faster than the CPU, significantly improving voxel model construction speed. Additionally, this method is less affected by the complexity of the stratum model. Our study has substantial potential for similar work in 3D geological modeling and other relevant fields.

show abstract

Refined implicit characterization of engineering geology with uncertainties: a divide-and-conquer tactic-based approach

Li,

Chen,

Liang

et al. 2024

Bull Eng Geol Environ

View full text Add to dashboard Cite

In engineering geology, a reasonable assessment of the spatial distribution of uncertainty in a region is vital in guiding research, saving money, and shortening the period. However, the traditional modeling process requires a lot of manual interaction, and the uncertainty of the geological model cannot be accurately quantified and utilized. This paper proposes a novel implicit geological modeling and uncertainty analysis approach based on the triangular prism blocks, which is divided into data point acquisition, ensemble model with divide-and-conquer tactic (EMDCT), uncertainty analysis, and post-processing. By employing machine learning algorithms, the EMDCT gives superior results for implicit modeling. The sensitivity analysis of the prediction results is further evaluated via information entropy. According to the distribution of uncertainty, supplementary boreholes are selected as additional knowledge to retrain the local components of the model to enhance their performances. The implicit modeling method is applied to real hydraulic engineering problems by employing the EMDCT, and the proposed model has obvious advantages in the implicit geological characterization. The overall accuracy in the working area with sparse boreholes reaches 0.922, which is 0.013 higher than the traditional method. By evaluating the distribution of uncertainty, an accuracy of 0.962 can be achieved, which is equivalent to reducing 10 boreholes.

show abstract

Three-dimensional modeling of fault geological structure using generalized triangular prism element reconstruction

Cited by 8 publications

References 38 publications

Refined Integration of Multilayer DEM-GTP-TEN for Three-Dimensional Quaternary Geological Modeling: A Case Study in Nantong City, China

Refined Integration of Multilayer DEM-GTP-TEN for Three-Dimensional Quaternary Geological Modeling: A Case Study in Nantong City, China

Efficient Construction of Voxel Models for Ore Bodies Using an Improved Winding Number Algorithm and CUDA Parallel Computing

Refined implicit characterization of engineering geology with uncertainties: a divide-and-conquer tactic-based approach

Contact Info

Product

Resources

About