Excavation Support
Excavation Support Design
Safe, buildable excavation support — from battered slopes to sheeted and framed solutions — designed around your ground, your plant and your programme.
What this covers
Excavations fail fast and without warning. We design excavation support that fits what you actually have — ground, groundwater, surcharges, adjacent structures and available kit — from battered profiles through proprietary boxes and sheets to framed solutions, with reference to BS 5975:2024 and CIRIA good practice.
- Battered excavation profiles and benching
- Trench boxes, drag boxes and proprietary shields
- Sheeted and framed excavation support
- Groundwater, surcharge and adjacent-structure assessment
- Excavation and installation sequence design
- Interfaces with piling mats, cranes and haul roads
How we word it
- Designs rely on ground and groundwater information supplied — unverified assumptions are stated and flagged for confirmation.
- Daily inspection and permit control remain site responsibilities.
- Subject to competent checking under the project temporary works procedure.
Typical deliverables
- Support design calculations and drawings/sketches
- Installation, use and removal sequence
- Design risk assessment with residual risks
- Inspection and permit-to-dig/enter interface notes
Information we need for an accurate quote
Partial information is fine to start — we will tell you what matters most.
- Depth, plan size and shape of the excavation
- Ground type and any GI / trial pit information
- Groundwater expectations or observations
- Surcharge loads — plant, spoil, traffic, structures nearby
- Buried services information
- Preferred method or available support kit
Typical hold points & interfaces
- Support installed and inspected before entry
- Re-inspection after rain, surcharge change or partial removal
- Permit-to-dig / permit-to-enter interfaces at each stage
When contractors use this
- A dig goes deeper than a batter can safely go
- Ground, water or surcharge conditions have changed
- Working next to structures, roads or live services
- A proprietary system needs project-specific justification
Move this forward
Send the item, the programme date and what information you already have (drawings, loads, ground info, constraints). You will get a practical view on scope, approach and turnaround.
Related services
Scope & competence note
Temporary Works Consulting & Design Ltd provides design, advisory, training and support services subject to agreed scope, competence requirements and project-specific information. Digital products, books, templates and tutoring support do not replace formal appointment, competent design review, independent checking, statutory duties or project-specific approval under the project temporary works procedure.
Get started
Need Temporary Works Support Now?
Tell us the item, the programme date and what information you have. You will get a practical, honest response — not a sales pitch.