Before any construction project begins, a thorough geotechnical investigation can make or break its success. At QTE (Quality Testing and Engineering), we specialize in identifying subsurface conditions that could impact the safety, stability, and longevity of your structure. Here are the top five soil problems we commonly uncover during geotechnical exploration—and why they matter.
1. Expansive Soils
These are clays that swell when wet and shrink when dry, causing serious issues for foundations, slabs, and roadways. If expansive soils aren’t properly identified and mitigated, they can lead to cracked foundations, uneven floors, and long-term structural damage. QTE’s laboratory testing pinpoints expansive clays, allowing us to recommend soil stabilization or foundation design modifications.
2. Poor Bearing Capacity
If the soil under your site can’t support the weight of the planned structure, you’re at risk for settlement or even collapse. This is especially problematic for multi-story buildings, heavy equipment pads, or industrial facilities. Through standard penetration testing (SPT) and lab analysis, we evaluate soil strength and provide foundation recommendations to suit the site.
3. High Groundwater Table
Water close to the surface can create major construction headaches, including instability during excavation, delays due to water pumping, and increased risk of basement seepage or flooding. QTE uses piezometers and borehole observations to determine the water table depth and advise on drainage, waterproofing, or dewatering solutions.
4. Soil Contamination
While not always obvious, contaminated soils pose environmental and health risks and can delay project timelines. Potential contaminants include petroleum, heavy metals, and industrial chemicals. If contamination is suspected, QTE performs soil sampling and coordinates environmental testing to ensure proper remediation before construction begins.
5. Unstable Fill or Voids
Man-made fill or natural voids—such as sinkholes or karst formations—can cause differential settlement, threatening the structure above. These hidden dangers are common in previously developed or excavated land. Subsurface exploration and test borings reveal inconsistencies in fill material, allowing engineers to address these concerns with compaction, grouting, or design changes.
Know What’s Below Before You Build
Identifying these and other soil conditions early saves time, money, and stress during your project. QTE’s geotechnical exploration services provide developers, contractors, and engineers with the information needed to build safely and confidently.
Need help with your next site investigation? Contact QTE today to schedule a geotechnical consultation or request a quote.