Deep foundations, built to precision.

Specialists in bored piling, soldier piling, and secant piling. Our team has been building deep foundations since 2014, continuing as PT Alpha Konstruksi Nusantara since 2018. From our base in Bekasi, AKN delivers foundation works for main contractors and project managers across Indonesia.

View Projects Our Services

Drone shot pekerjaan bored pile — Sekolah Citra Kasih Semarang — Fig. 01 — Bored pileSemarang, Jawa Tengah · 1 / 3

Drone shot proyek Bukit Sari — Fig. 01 — Bored pileSemarang, Jawa Tengah · 1 / 3

Drilling diameter

Ø 400–1.200 mm

Drilling depth

up to 30 m

Scope of services

4 geotechnical disciplines

Services

Foundation & deep excavation works

Bored pile rig drilling, with the open hole fenced off by yellow barriers

Bored Piling

Cast-in-place bored piles for buildings and infrastructure across soft to hard soils, with verticality and concrete quality controlled on every pile.

Ø 400–1.200 mm · up to 30 mView service

Drilling rig and excavator working side by side on a tight site behind a metal hoarding

Soldier Piling

Earth retaining walls for basement excavation and confined sites — bored piles set at measured spacing to suit retention requirements.

Deep excavation retentionView service

A continuous retaining wall around an excavation on sloping ground, with the drilling rig inside

Secant / Contiguous Piling

Continuous retaining walls formed by interlocking bored piles, for deep excavation with a high groundwater table.

Groundwater cut-offView service

Excavation flooded before groundwater control

Dewatering

Groundwater control throughout construction, keeping excavations dry, stable, and safe to work in.

Groundwater table controlView service

How we work

From soil data to integrity testing

Soil data review

We review CPT/borehole logs and shop drawings before settling on method and plant.

Rig mobilisation

Rig and crew are matched to site access, pile diameter, and design depth.

Drilling & concreting

Verticality, concrete slump, and pour volume are recorded pile by pile.

Reporting & integrity testing

Complete piling records and PIT/PDA testing to project specification.

Bored piling rig at work on site — Fig. 02 — Rig on sitePondok Indah, Jakarta

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Why Alpha

“You cannot build a great building on a weak foundation.”

— Gordon B. Hinckley

“When we build, let us think that we build for ever.”

— John Ruskin

“Well building hath three conditions: firmness, commodity, and delight.”

— Vitruvius

“No house should ever be on a hill or on anything. It should be of the hill.”

— Frank Lloyd Wright

“You’ll know it’s there, so you’re going to use a beautiful piece of wood on the back.”

— Steve Jobs

Foundations disappear from view once the building stands. That is precisely why we document every pile — complete piling records, PIT/PDA testing, and a schedule we keep.

Piling record per pile PIT / PDA testing On schedule More than 30 clients