Technical insights
Practical technical articles for consultants and contractors on method selection, trials and verification.
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RIC vs. Dynamic Compaction: selection factors and limitations
Rapid Impact Compaction or Dynamic Compaction? Compare depth, control, access and verification to choose the right ground improvement method.
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When HEIC is appropriate for large-area fill improvement
High Energy Impact Compaction (HEIC) suits large, open fill areas and near-surface layers, less so small sites or deeper layers. A trial proves suitability.
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CPT vs. PLT: what each test verifies after ground improvement
CPT and plate load tests answer different questions after ground improvement: CPT profiles the ground with depth, a plate test measures stiffness near the surface.
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How trial areas establish production parameters
A trial area turns a ground improvement design into proven production parameters, by treating and testing part of the site before full production starts.
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Stone columns vs. rigid inclusions: how the choice is made
Stone columns or rigid inclusions under a slab, tank or embankment? Compare how each carries load, where each works and how each is verified.
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Secant vs. contiguous pile walls: which suits your excavation
Secant and contiguous pile walls both retain deep excavations. The difference is the gap between piles, and what that means for groundwater.
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Dewatering methods: sumps, wellpoints and deep wells compared
How sump pumping, wellpoints and deep wells lower groundwater for excavation, which soils each suits and what must be monitored around the site.
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Bored piles vs. CFA piles: how the choice is made
Bored piles and continuous flight auger (CFA) piles are both cast in place. Compare ground conditions, size, speed and quality control for each.
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Pile testing: what static, dynamic and integrity tests each prove
Static load, dynamic load and integrity tests answer different questions about a pile. What each one measures, its limits and when it is used.
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Building on sabkha: ground risks and the methods usually considered
Sabkha soils along the Saudi coasts are weak, salty and have shallow groundwater. The main risks and the ground engineering methods considered.