PIP STS02485-2025 PDF

Full title and description

St PIP STS02485-2025 — PIP STS02485:2025, "Helical Piles Specification" — a Process Industry Practices (PIP) practice describing requirements for supply, installation and testing of small-capacity helical piles and related items.

Abstract

This practice specifies minimum requirements for helical piles with small axial compressive capacity (ultimate axial compressive capacity < 100 kip / approximately 450 kN). It covers material, manufacture, installation methods, field testing (including axial and torque-based verification), quality assurance and documentation needed for use in process-industry facilities. (2025 edition, 17 pages).

General information

• Status: Current / Active.
• Publication date: 1 March 2025 (2025 edition).
• Publisher: Process Industry Practices (PIP).
• ICS / categories: Geotechnical engineering; piling & foundations; process-industry construction practices.
• Edition / version: 2025 (STS02485:2025).
• Number of pages: 17 pages.

Scope

This practice describes minimum requirements for supplying, installing and testing small-capacity helical piles (defined by PIP as piles with ultimate axial compressive capacity less than 100 kip / ~450 kN) and related items used in process-industry facilities. It is intended to provide consistent requirements for procurement, installation and verification of performance where helical piles are an appropriate foundation or remediation solution.

Key topics and requirements

• Definitions and terminology for helical piles and related components.
• Material and manufacturing requirements for shaft, helices, couplers and brackets.
• Design capacity definitions (ultimate and allowable axial capacities) and design verification methods.
• Installation procedures, acceptable installation equipment and torque-to-capacity correlations.
• Field testing and acceptance: torque monitoring, axial compression/tension tests and required documentation.
• Corrosion protection and coatings for long-term durability in process-industry environments.
• Quality assurance, manufacturer documentation, traceability and site records.
• Acceptance criteria and reporting requirements for contract handover.

Typical use and users

Primary users are process-industry owners, EPC contractors, structural and geotechnical engineers, foundation subcontractors and procurement teams who need a consistent practice for specifying, procuring and verifying helical pile foundations in plant and process infrastructure projects. PIP practices are commonly referenced by engineering teams working on oil & gas, petrochemical, power and similar industrial facilities.

Related standards

Commonly referenced / complementary documents and standards include ICC-ES acceptance criteria for helical pile systems (AC358) and manufacturer evaluation reports, ASTM test methods for deep foundations (e.g., ASTM D1143 for static axial compressive load testing and related ASTM methods), IAPMO UES evaluation criteria for helical foundations, and other PIP structural and civil practices. These documents provide detailed test methods, code acceptance criteria and industry test procedures that support the practice.

Keywords

helical piles; helical foundations; PIP STS02485; helical piers; installation torque; axial capacity; load testing; corrosion protection; process industry practices; foundation specification.

FAQ

Q: What is this standard?

A: PIP STS02485:2025 is a Process Industry Practices specification titled "Helical Piles Specification" that sets minimum requirements for supplying, installing and testing small-capacity helical piles used in process-industry facilities.

Q: What does it cover?

A: It covers material and manufacturing requirements, installation procedures, field testing and acceptance (including torque and axial verification), corrosion protection, QA/QC and documentation for helical piles with ultimate axial compressive capacity under 100 kip (~450 kN).

Q: Who typically uses it?

A: Structural and geotechnical engineers, foundation contractors, EPC firms and process-industry owners/operators specifying or accepting helical pile foundations for plants and industrial facilities.

Q: Is it current or superseded?

A: The 2025 edition (STS02485:2025) is listed as current/active (published March 1, 2025). Users should confirm they have the latest revision before purchase or specification.

Q: Is it part of a series?

A: Yes — it is published by Process Industry Practices and intended to be used alongside other PIP structural, civil and piping practices that together form PIP guidance for process-industry design and construction. Users frequently apply it together with related PIP practices and relevant national codes or industry acceptance criteria.

Q: What are the key keywords?

A: Helical piles, helical foundations, installation torque, axial capacity, load testing, corrosion protection, PIP, foundation specification.