Microtunnelling / Gujarat, India

GHCL Curved Sea Outfall

2000mm ID · 350m · Gujarat Heavy Chemicals · Gujarat

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Project Overview

Execution & Technical Scope

TESPL executed a 2000mm internal diameter microtunnel sea outfall for Gujarat Heavy Chemicals Ltd. in Gujarat — a curved drive through rock in an open coastal environment.

The curved alignment was required by site constraints that made a straight bore impractical. Executing a curved MT drive at 2000mm diameter through rock, in coastal conditions, is technically rare — demanding precise steering control and consistent face pressure management.

Site Photos & Visual Records

Trenchless

GHCL Curved Sea Outfall - Site Operation

Key Statistics

  • Length350m
  • Diameter2000mm internal diameter
  • Depth10m (onshore) · 10.5m (offshore)
  • GeologyRock
  • EquipmentAVN2000
  • MethodMicrotunnelling — curved alignment
  • Client / OwnerGujarat Heavy Chemicals Ltd.
  • LocationGujarat, India
  • Year Completed2026