Open-hole drilling is typically faster since it skips installing and withdrawing a casing, though duration depends on hole depth and confirmed conditions.
Open-hole drilling circulates grout as the drilling fluid itself instead of supporting the borehole with a temporary steel casing. The grout's density keeps surrounding soil or rock from caving in and carries cuttings out as the hole advances, eliminating the step of installing and later pulling a casing.
In Tarrant County, whether that works depends on the specific site: it's viable once a hole reaches self-supporting ground, but growth-corridor sites built on reworked fill or heavy clay often still need a cased or duplex method to keep the hole from collapsing before the grout sets. GSI's Tarrant County drilling work includes:
Open-hole drilling is typically faster since it skips installing and withdrawing a casing, though duration depends on hole depth and confirmed conditions.
Cost varies by site; reworked fill or unstable clay requiring cased drilling generally costs more than sites where open-hole drilling is viable.
Yes. Our PE-licensed engineers specify the method by zone based on confirmed subsurface conditions, and every design meets applicable code requirements.
We switch to a cased or duplex drilling method for that section immediately, since continuing open-hole through unstable fill risks the borehole collapsing.
It depends on the site's history; undeveloped or previously graded sites can differ significantly in whether the ground self-supports a borehole.
We confirm ground conditions with test borings specific to the site rather than assuming uniform conditions across a growth corridor.
Yes, wherever an anchor extends into confirmed self-supporting ground, since a competent rock or stiff clay socket holds the hole open without a casing.
Yes. It's common for different zones of the same site to call for different methods, particularly on sites with a mix of natural soil and prior fill.
Using the wrong drilling method for the ground beneath a Tarrant County site risks a collapsed borehole and a stalled project. Call (855) 599-5217 to get a drilling assessment from a licensed engineer.
