Planning foundation work around the monsoon in Gujarat

What can continue in the rain, what should not, and how to sequence a programme that survives June without a claim at the end of it.

Every year somebody prices a Gujarat basement as though June to September is twelve normal weeks. It is not, and pretending otherwise turns a weather problem into a commercial one.

What actually stops

• Cage lifting in high wind — a 20 T cage on a crane is not a judgement call
• Tremie concreting during heavy rain, where slurry level control is lost
• Anchor drilling on a saturated platform that cannot carry the rig
• Any excavation whose surface water route has become the excavation

What can continue

Guide wall construction, panel excavation under slurry with a bunded platform, grouting under cover, reinforcement fabrication and — importantly — every piece of documentation that otherwise gets deferred to the dry season.

“The monsoon is the right time to close out the test file, not to start a new panel line.”

Sequencing the year

We plan panel walls to be structurally complete before the second week of June where we can, leaving anchoring and internal strutting — both of which tolerate rain better — for the wet months. Where that is not possible, the platform gets built for the monsoon from the start: bunds, falls, sumps and a defined stop-work trigger on rainfall intensity.

Say it in the contract

A programme with named monsoon float and a written stop-work trigger is not pessimism, it is the version that finishes on time. Everyone knows what happens in June; the only question is whether it is in the contract or in a claim.

Written by Amit Wardha, Managing Director at Wardha Infrastructure. Questions about your own site? Send us the details — an engineer answers.