- Our Projects
Babylon Landfill Expansion
Project Overview
The original design utilized traditional leaching rings for stormwater management; however, lack of storage capacity led the design to change to an underground stormwater detention system (USDS) made up of modular polypropylene units called RainTanks. Since the USDS would be installed quite close to the toe of the 200-ft high landfill, the critical issues for the project were:
- Large lateral earth pressures on the USDS tanks from the retaining walls and slopes which could exceed the strength of the tanks
- Potentially reduced slope stability factors of safety
- Potentially reduced factors of safety against liquefaction of the hydraulically deposited fill in the recharge basin
GeoStructures performed finite element method (FEM) analysis to develop an accurate determination of the lateral earth pressures on the sides of the USDS tanks. By running the FEM analysis, GeoStructures was able to optimize the design through revising the tank geometry and recommending minimum design strengths for the tanks—those of which were subsequently verified through material testing.
GeoStructures also performed dynamic slope stability, retaining wall analyses, and liquefaction hazard analyses for the project. The liquefaction hazard analyses were performed using traditional semi-empirical methods, as well as 2-D dynamic FEM analysis. In the dynamic FEM analysis, selected ground motions were run through the model to study the effects, and the resulting dynamic stresses and strains were then utilized as inputs for a dynamic FEM slope stability analysis. The factor of safety could be analyzed at each time step in an earthquake record to study the resulting deformation of the slope above the zone of liquefaction.
- Related Services
Our Comprehensive Project Workflow: Step-by-Step Guide
Initial Consultation and Client Needs Assessment
Our team responds promptly to your inquiries, ensuring timely communication and immediate attention to your project needs. We work closely with clients to understand all project requirements, ensuring that we capture every detail and objective from the start.
Development of Work Plan
Our expert project managers extend innovative problem-solving to project planning, resulting in technically-sound, cost-effective work plans to better serve our clients.
Project Proposal and Agreement
We provide a detailed project proposal outlining the scope of work, fee schedule, and agreement terms. The project begins once the proposal is approved.
Execution and Quality Assurance
Our highly skilled team of principals, project managers, engineers, and field staff execute the project with precision, maintaining open communication to ensure alignment with client expectations. Each project undergoes a rigorous quality check by our team of licensed professional engineers, ensuring all deliverables meet our high standards of excellence.
Project Delivery and Invoicing
Upon completion, we deliver the final project and issue an invoice for the completed work, ensuring full transparency and satisfaction.
