- Our Projects
19th and Arch Streets
Project Overview
GeoStructures’ detailed characterization of the subsurface conditions enabled the use of economical strip and spread footings (rather than a deep foundation) to support the high-rise structure. Our scope of work included:
- Two phases of field exploration with a total of 10 test borings and 6 pumping wells/piezometers
- Groundwater pumping and drawdown tests
- Permeability and seepage analysis
- Finite element method (FEM) analysis and design of secant pile wall and slurry wall
GeoStructures was also responsible for the engineering analysis associated with the conceptual design of two excavation support systems (secant pile and slurry walls) for the deep basement. Secant pile walls were eventually selected as the first-time application of this system in the city of Philadelphia.
Considering the limited right-of-way for temporary excavation support and other unique site constraints, GeoStructures proposed to use the excavation support system as the permanent foundation wall, as well as a cut-off wall to mitigate groundwater intrusion during construction and permanent occupation.
- 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.
