Services

GEOTECHNICAL ENGINEERING
DRILLING SERVICES
CONSTRUCTION MATERIALS TESTING
AND SPECIAL INSPECTIONS
SPECIALTY SERVICES
ENVIRONMENTAL SERVICES
 

GEOTECHNICAL ENGINEERING
BHATE offers comprehensive services in the field of geotechnical engineering. All field exploration and laboratory testing services associated with these services are provided by in-house equipment and personnel, allowing us to control the quality and schedule of our services. The following information briefly describes the services that BHATE offers in these fields:

Preliminary Studies

  • Site Suitability Evaluation and Project Feasibility Studies
  • Preliminary Subsurface Exploration
  • Subsurface Photography/Videography

Design

  • Geotechnical Investigations/Subsurface Exploration
  • Foundation Engineering
  • Pavement Evaluation and Design
  • Fill Material
  • Reinforced Slope Design
  • Machine Foundation Analysis
  • Earth Dam and Levee Design
  • Embankment Stability Analysis
  • Underground Mine Remediation
  • Sinkhole Remediation
  • Tunnel and Shaft Analysis
  • Specification Preparation and Review

Construction

  • Earthwork Monitoring
  • Deep/Shallow Foundation Installation Monitoring
  • Construction Dewatering Evaluation
  • Geotechnical Instrumentation Monitoring
  • Review of Excavation Bracing
  • Tie-Back and Anchorage Systems

Post Construction

  • Failure Investigations & Slope Failure Remediation Designs
  • Instrumentation Program Development
  • Foundation Underpinning Designs
  • Subsidence Abatement Designs
  • Expert Testimony

DRILLING SERVICES
To control quality and meet our client’s schedules, BHATE owns and operates our own drilling fleet. We have both truck mounted and adverse train drilling rigs, support trucks, trailers, water tanks, off road moving mats and low clearance drills for limited height and indoor work. We do angle drilling and are specialists in karstic and sinkhole prone geologic formation.

  • BHATE has the capabilities to drill by either flighted auger or rotary wash or air methods
    and soil sample by standard penetration test, pitcher tube, continuous soil core or Shelby
    tube.
  • We can core nominal 2-, 3.5- and 4-inch diameter rock samples by wireline methods.
  • We routinely install two- and four-inch groundwater monitoring wells, multiple cased
    telescope wells, and slope inclinometers and nested piezometers.
  • Our in-house drilling department staff includes a professional geologist and six crewmen
    who include registered drillers in Alabama and Mississippi.
  • All of our personnel have met the training and medical monitoring requirements of OSHA
    29 CFR 1910.120.
  • All have completed basic First Aid and CPR courses and have current OSHA/DOT physicals.
  • Our rigs are capable of augering soil sampling in excess of 300 feet and can rock core
    greater than 800 feet.

Drilling Rigs and Equipment

  • Hollow Stem Augers: 2 ¼, 3 ¼, 4 ¼, 6 ¼, and 8 ¼ inch internal diameters
  • Solid Flight Augers: 3, 4, and 6 inch diameters
  • Flush joint casing 3” (NW) and 4” (HW) size
  • NQ wireline drill rods and 5’ and 10’ core barrels
  • Larger diameter coring (3.25 to 4.00 inches)

CONSTRUCTION MATERIALS TESTING AND SPECIAL INSPECTIONS
BHATE maintains a staff of highly qualified materials engineers and technicians that keep abreast of current ASTM, AASHTO, MILSTD and other specifications used on commercial, government and Corps of Engineers projects. A list of our services is as follows:

Soils

  • Compaction Testing of Soil, Base and Asphalt
  • Observation of Soil and Rockfill Placement
  • Field Permeability Testing
  • Field CBR Tests
  • Plateload Tests (Subgrade Modulus)

Concrete
  • Concrete Batch Plant Inspection
  • Sampling and Testing of Fresh Concrete
  • Compression, Flexure and Splitting Tensile Tests
  • Concrete Reinforcing Steel Placement Inspection
  • Observation of Post-tension Tendon Stressing

Masonry/Asphalt
  • Structural Masonry Inspection
  • Field Sampling of Masonry Block, Prisms, Grout and Mortar
  • Asphalt Placement Monitoring
  • Asphalt Batch Plant Inspection

Structural Steel
  • Welder and Procedure Qualification
  • Prepare and Evaluate Welding Procedures
  • Ultra-Sound Testing
  • Liquid Penetrant Testing
  • Magnetic Particle Testing
  • Visual Testing
  • Turning of Nut Bolting Inspections
  • Torque Verification Bolting Inspection

Roofing
  • Destructive and Nondestructive Testing
  • Evaluation of Roofing Materials and Specification
  • Application and Conformance Monitoring
  • Moisture and Condition Survey

IBC Chapter 17 Special Inspections & Threshold Inspections         AASHTO Accreditation                 USACE Validated

Specialty services
BHATE specializes in a wide variety of non-invasive geophysical methods that can be used to determine depth to bedrock, subsurface soil and rock conditions, and locate buried objects such as utilities, drums and voids. Some of the services include:

Ground Penetrating Radar (GPR) - is a geophysical method that uses radar pulses to image the subsurface. This nondestructive method uses electromagnetic radiation in the microwave band (UHF/VHF frequencies) of the radio spectrum and detects the reflected signals from subsurface structures. GPR can be used in a variety of media including rock, soil, ice, freshwater, pavements and structures. It can detect objects, changes in materials and voids and cracks.

  • Structural Mapping
  • Utility Mapping

Resistivity- form of geophysical survey where electrical current is passed through the ground at regular points on a survey grid. Electrical resistance in the soil varies, and is affected by the presence of archaeological features. The patterns of resistance in the soil are recorded, plotted and interpreted.

Gravity Survey- measurements of the gravitational field at a series of different locations over an area of interest. The objective in exploration work is to associate variations with differences in the distribution of densities and hence rock types.

The Refraction Microtremor (ReMi) Method- provides an effective and efficient means to acquire general, one-dimensional information about large volumes of the subsurface with one setup. The method can be used to estimate shear wave velocity profiles and provide site-specific NEHRP and IBC Vs30 soil classification data. Testing is performed at the ground surface with no need for a specifically cased borehole. ReMi is useful in determining site specific earthquake response, liquefaction potential, soil compaction, and subsurface geology.

Vibration and Noise Monitoring Services Include:

  • Vibration monitoring and analysis
  • Remote vibration monitoring
  • Noise monitoring and analysis
  • Mechanical equipment evaluation
  • Pre-construction and pre-blast surveys


Seismic Refraction Exploration- consists of measuring the time required for a seismic impulse to travel from a seismic source to a receiving transducer. An explosive device, an air gun, a weight dropped from a truck or a hammer striking a steel plate is typically used for the seismic source and twelve or more vertical geophones are used for the receiving transducers. The choice of the seismic source depends upon the length of the seismic line, the degree of resolution desired, and the environmental suitability of a particular source.

The seismic refraction method provides information which can be used in:

  • Mapping bedrock topography
  • Determining the depth of gravel, sand or clay deposits
  • Delineating perched water tables
  • Determining the depth to the water table
  • Detecting subsurface caverns
  • Estimating rippability
  • Detecting shallow faults and fracture zones
  • Detecting large boulders
  • Monitoring time-varying changes in elastic properties

 

 



 

 

ENVIRONMENTAL SERVICES
BHATE provides comprehensive environmental engineering and consulting services for public and private clients. We have developed an excellent reputation in providing cost effective solutions to evaluate and resolve the environmental risks associated with your projects. BHATE’s engineers and scientists have years of experience in working with regulatory agencies to solve complex environmental problems. Our multi-disciplined staff of scientists, geologists, biologists, engineers and hydrogeologists can provide you with comprehensive services within regulatory compliance framework. We have established a strong relationship with several state and federal regulatory agencies across the United States.

Traditional Environmental Services

  • Phase I & Phase II Environmental Site Assessment
  • Lead- Based Paint
  • Asbestos Survey
  • Investigation/Feasibility Study
  • Hydrogeological Investigations
Compliance Systems
  • Waste Minimization and Management Planning
  • Compliance Audit Program
  • Training
Risk Assessment
  • Risk-Based Cleanup Criteria
  • Risk-Based Closure Analysis
  • Human Risk Analysis
Underground Storage Tanks
  • Site Investigation
  • Groundwater Monitoring
  • Removal Oversite
  • Contamination Assessment
  • Remedial System Implication

Safety and Training

  • OSHA Compliance Auditing
Solid and Hazardous Waste
  • Landfill and Impoundment Siting, Design, Permitting and Closure
  • Waste Characterization
  • Waste Minimization
Wetlands and Ecology
  • Environmental Impact Studies
  • Wetlands Delineation and Permitting
  • Wetlands Construction and Bioremediation
  • Sensitive Habitat Studies
  • NEPA Compliance Documentation
  • Ecological Risk Assessment
Regulatory Support
  • NPDES Permitting
  • Best Available Technology Management Practices
  • Permit Preparation and Negotiations
  • Emissions Estimates and Inventories
  • Compliance Plans
Facilities Design and Construction Management
  • Treatment Plant Design
  • Cap Design