Research on Calculation Model of Excavation Resistance Under Heterogeneous Soil Conditions

Authors

• Xin Zhang, School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
• Ping Zhang, School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
• Chen Zhang, School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
• Wei Liu, School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
• Boyang Han, School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

Abstract

To address the problem of insufficient prediction accuracy of excavation resistance in heterogeneous cohesive soil, a spatial calculation model of excavation resistance at each excavation stage under heterogeneous soil conditions was proposedbased on the cutting wedge model, comprehensively considering multi-dimensional factors such as bucket geometry, side plate effect, lateral force, and inertia. By taking a small crawler hydraulic excavator as the research object, a coupled simulation model of boom multi-body dynamics and soil-rock particle discrete element was established, and the theoretical model was validated through the co-simulation of excavation operations. The simulation results indicate that under the working conditions of different stone contents and excavation depths, the theoretical values and the simulated values of the proposed calculation model are in good consistency, and the component force errors are reasonable. The model can effectively characterize the spatial dynamic distribution of excavation resistance, demonstrating high accuracy and applicability.

Recommended Citation

Zhang, Xin; Zhang, Ping; Zhang, Chen; Liu, Wei; and Han, Boyang (2026) "Research on Calculation Model of Excavation Resistance Under Heterogeneous Soil Conditions," Journal of System Simulation: Vol. 38: Iss. 5, Article 13.
DOI: 10.16182/j.issn1004731x.joss.25-0586
Available at: https://dc-china-simulation.researchcommons.org/journal/vol38/iss5/13

First Page

1320

Last Page

1332

CLC

TP391.9; TU62

Recommended Citation

Zhang Xin, Zhang Ping, Zhang Chen, et al. Research on Calculation Model of Excavation Resistance Under Heterogeneous Soil Conditions[J]. Journal of System Simulation, 2026, 38(5): 1320-1332.

Corresponding Author

Zhang Ping

DOI

10.16182/j.issn1004731x.joss.25-0586