Benefits
The handling of groundwater is among the most complex of all construction problems. Controlling groundwater at construction excavations can be a critical matter when groundwater halts construction jobs or threatens bankruptcy of the project. Groundwater management falls into two major categories, either handling the groundwater before it enters the excavation or handling it after it enters the excavation. The decision to do one or the other or both is the most important decision to make for his project and requires diligent investigation of the jobsite soil conditions.
Learning Objectives
- You will be able to discuss widely used dewatering methods.
- You will be able to explain dilemmas that arise from improper dewatering and some resulting consequences that can occur.
- You will be able to recognize soil characteristics/subsurface conditions.
- You will be able to explain the size and depth of your excavation and why it is important.
Agenda
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Overview of Construction Dewatering/Groundwater Control? |
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- What Is Dewatering?
- What Does Dewatering Do?
- Origins of Dewatering
- Dilemmas That Arise From Improper Dewatering and Some Resulting Consequences That Can Occur
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Widely Used Dewatering Methods |
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- Wellpoint System
- Deep Well System
- Eductor System
- Sumping/Open Pumping
- Temporary and Permanent Dewatering Systems
- Details of a Dewatering System
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Things to Consider When Selecting a Dewatering System for Your Project |
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- Size and Depth of Your Excavation
- Location and Environment
- Proximity of Existing Structures
- Existence of Any On-Site Contamination
- Soil Characteristics/Subsurface Conditions
- Aquifer Characteristics
- Construction Schedule
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Dewatering Case Studies |
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- Saluda Dam, Columbia, South Carolina – Eductor Dewatering Method
- Paddy Creek Dam, Morganton, North Carolina – Eductor Dewatering Method
- Batchtown Wildlife Refuge, St. Louis, Missouri – Deep Well Method
- New Madrid Pumping Station, New Madrid, Missouri – Deep Well Method
- Riverpoint West Street Improvement Project, Des Moines, Iowa – Wellpoint Method
- Pearland Town, Center Houston, Texas – Wellpoint Method
- Lake Fork Pumping Station, Dallas, Texas – Deep Well Method and Wellpoint Method
- Crystal River Power Plant, Crystal River, Florida – Sumping Method
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Faculty
Harry Bagherzadeh, P.E., Ph.D., Griffin Dewatering Southwest/Southeast
Harry Bagherzadeh, P.E., Ph.D.
- Vice president of Griffin Dewatering Southwest/Southeast
- Professional engineer in Texas, Louisiana, North Carolina and South Carolina
- Professional geologist in Tennessee
- Practice emphasizes all aspects of construction dewatering and groundwater control
- Conducts regular seminars and workshops on numerous dewatering and groundwater control
- Author of several publications related to the areas of dewatering and groundwater control
- Member of the American Society of Civil Engineering; the American Society of Agricultural Engineering; the Soil Water Conservation Society; and the American Water Resources Association, United States Society on Dams
- Ph.D. degree in agricultural engineering, Pennsylvania State University
- M.S. degree in agricultural engineering, South Dakota State University
- M.S. degree in civil engineering, South Dakota State University
- B.C.E. degree in civil engineering, University of Minnesota
- Can be reached at Harry.Bagherzadeh@griffindewatering.com or 713-671-7026
Continuing Education Units
- AIA
- AICP (Pending)
- CC
- ENG
- PMI
- Additional credit may be available upon request. Contact Lorman at 866-352-9540 for further information.
Detailed Credit Information
Additional credit may be available upon request. Please call 1-866-352-9540 for more information.
Only registered attendee will receive continuing education credit.
Who Should Attend
This teleconference is designed for engineers, public works directors, hydrology professionals, environmental professionals, project managers, consultants, planners, contractors, subcontractors and architects.
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