Geotechnical
- Site Description (TxDOT Geotechnical Manual)
- Existing Site Condition: Undeveloped
- Ground Cover: Grass and Trees
- Existing Grade: 2% slope
- Prepare the Site
- No overhead clearance
- Trees
- Powerlines
- No ground connections
- Water lines
- Sewer lines
- Storm lines
- Gas lines
- Electrical cables
- Telephone cables
- Drilling Procedure, Flight Auger (ASTM Safety Manual)
- 4 borings
- 25 feet deep
- Borings backfilled with bentonite
- Collect Samples (ASTM D4220) for Laboratory Test
- Visual Classification (ASTM D2488)
- Moisture Content Tests (ASTM D2216)
- Atterberg Limits (ASTM D4318)
- Unconfined Compression Strength Test (ASTM D2166)
- Unified Soil Classification System (ASTM D2487)
Boring Locations
Boring Findings
- Findings
- ASTM Plasticity Chart
- Soil Type: Fat Clay (CH)
- Soil Depth: 2 ft to 4.5 ft
- Parent material: Weathered Limestone
- No water table
- Properties and qualities of soil:
- Liquid Limit: 63%
- Plasticity Index: 36
- High Plasticity and Swelling
- Load Bearing Capacity: 1500 to 2000 psf
- Foundation Recommendations:
- Excavate the clay
- Replace with select fill (19 PI)
- Main building: Slab-on-grade and footings
- Outside Units: Slab-on-grade