Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Dewatering (2)
- Dredge (2)
- Abutments (1)
- Basal-heave (1)
- Bridges (1)
-
- Calcium Carbonates (1)
- Civil Engineering (1)
- Civil engineering (1)
- Dredged material (1)
- Dredging (1)
- Force Chains (1)
- Freezing (1)
- Frozen (1)
- Geotechnical Engineering (1)
- Geotechnical engineering (1)
- Ground Improvement (1)
- Ground surface settlement (1)
- Hydraulic (1)
- Indigenous Microbes (1)
- Lateral wall deflection (1)
- Mechanical Response (1)
- Photoelasticity (1)
- Piezo (1)
- Reliability based design (1)
- Seismic Waves (1)
- Seismic waves (1)
- Serviceability limit state (1)
- Soil (1)
- Soil Media (1)
- Structural Engineering (1)
Articles 1 - 7 of 7
Full-Text Articles in Geotechnical Engineering
Non-Destructive Characterization Of Bio-Cemented Soils Via Seismic Wave Measurement, Kyle Best
Non-Destructive Characterization Of Bio-Cemented Soils Via Seismic Wave Measurement, Kyle Best
Williams Honors College, Honors Research Projects
The final outcome of this project is to examine the mechanical and resulting physical properties of bio-treated soil through microbial activity via non-destructive testing by seismic waves. The proposed bio-treatment strategy is through supplying specific nutrients for indigenous microbes within a soil specimen which in return produce calcium carbonates. The bio-minerals produced during these biogeochemical activities will improve the mechanical properties of soil by making cementation between soil grains. Additionally, a theoretical laboratory experimentational description will be provided to explain any associative effects on a specimen's water permeability or mechanical strength due to bio-mineralization within the samples. The characterization of …
Investigating The Mechanical Properties Of Frozen Soil Using Non-Destructive Seismic Wave Measurements, Sean Mach
Williams Honors College, Honors Research Projects
This proposed project will be dealing with investigating the mechanical properties of soil under frozen conditions. This will be done by an innovative non-destructive technology measuring the propagation of seismic waves through the frozen soils from multiple piezoelectric sensors. For the duration of this research, a freezing cell must be constructed to carry out the experimental testing. Multiple levels of saturation will be tested under the given freezing conditions. This should highlight the effect that the level of saturation will have on the propagation of seismic waves throughout the soil. Piezo-electric sensors will be placed in each layer of soil …
Investigation Of Casting Methods Of Photoelastic Particles To Study The Geomechanics Of Granular Media, Daniel Schullek
Investigation Of Casting Methods Of Photoelastic Particles To Study The Geomechanics Of Granular Media, Daniel Schullek
Williams Honors College, Honors Research Projects
The research being conducted within this project is to observe force chains in different samples of soil media with varying shapes. The method for observing the force chains is a process called photoelasticity. Photoelasticity uses two polarizing sheets, with the clear media being tested placed between, and light is directed through the sheets to observe how the light is refracted as force is applied to the tested media. Through our research, we are coming up with a method of casting soil particles through the utilization of resin, silicone, and 3D printing. Once the clear particles have been cast, we will …
Comparative Analysis Of Bridge Abutment Types, David Fell
Comparative Analysis Of Bridge Abutment Types, David Fell
Williams Honors College, Honors Research Projects
This project was developed to serve as a brief overview of design practices and considerations in the selection of highway bridge abutment types. This involved a review of literature in the form of reviewing national design guides and department of transportation (DOT) requirements from both US DOTs and international DOTs. The abutment types covered in this research included conventional reinforced concrete abutments with bearings, integral abutments, and semi-integral abutments. This research focused solely on highway bridge abutments, particularly on Ohio Department of Transportation design requirements due to their extensive use of semi-integral abutments. Superstructure elements and geometric requirements are primary …
Investigation Of Dredge Material Dewatering Through Hydraulic And Ground Improvement Methods, Monica Moody
Investigation Of Dredge Material Dewatering Through Hydraulic And Ground Improvement Methods, Monica Moody
Williams Honors College, Honors Research Projects
Every year almost 1.5 million tons of material is dredged from Lake Erie to allow passage for boat traffic. In the past, this material has been placed back into the open waters of the lake. However, starting July 2020 this will no long be permitted due to the passing of Senate Bill 1. Therefore, secondary uses of this dredging material are being investigated. To be used, the material needs to be quickly dewatered and stabilized. This project consists of literary reviews of two methods of rapid dewatering, hydraulic placement and ground improvement methods. Hydraulic placement dewatering requires the use of …
Stabilization Of Dredged Materials In Ohio: An Investigation Of Mechanical, Chemical And Biological Dewatering Techniques, Erika Howard
Stabilization Of Dredged Materials In Ohio: An Investigation Of Mechanical, Chemical And Biological Dewatering Techniques, Erika Howard
Williams Honors College, Honors Research Projects
Each year, materials are excavated from oceans and lakes in order to keep the waterways open so that ships can safely pass through. These excavated, or dredged, materials are then discarded, usually being returned to the body of water from which they were removed. Beginning in 2020, the Ohio Environmental Protection Agency (OEPA) will no longer allow this to occur. Therefore, the purpose of this project is to investigate beneficial uses for dredged materials in Lake Erie, and to address the best management practices for dewatering these materials, as set forth in the Lake Erie Protection and Restoration Plan created …
Deep Excavations In Urban Environments: A Review Of Recent Developments, Micah D. Nine
Deep Excavations In Urban Environments: A Review Of Recent Developments, Micah D. Nine
Williams Honors College, Honors Research Projects
Failure of excavations can be incredibly costly. Lives can be lost, projects delayed for months, and adjacent structures damaged by ground surface settlement related to both basal-heave and serviceability failures. This report summarizes developments in recent years that pertain to deep excavations in urban environments and mathematical methods to best avoid failures. The ultimate limit state (basal-heave and piping failure), and serviceability limit state (ground surface settlement and lateral wall defection) are the basis for geotechnical design in excavations. Structurally, the strength limit state (structural strength of the wall), serviceability limit state (deformation of the retaining wall), and stability (such …