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Home > Thailand’s Samui Island water tunnel breakthrough

Thailand’s Samui Island water tunnel breakthrough

Tris Thomas

Written by Tris Thomas on 31/08/2022 in News

Tagged: Samui Island water tunnel,Terratec,Thailand

Thai contractor SCG (1995) Co Ltd. has celebrated the completion of excavation of a 1.1km tunnel for the the Samui Island flood control system following breakthrough of it’s Terratec S48C refurbished 3.2m diameter EPBM.

SAMUI

Featuring a soft ground open spoke cutterhead design, with knife bits to assist break-in and break-out of the steel fibre reinforced concrete shaft eyes, the EPBM has coped well with the geological conditions along the alignment, which consist of dense sand, stiff to hard clay and decomposed rocks with a groundwater head of about 2 bars.

The receiving shaft, sized 5 x 9m, is located at the base of two hills where flooding persists. The flood water will drain through the new tunnel to connect with a 500m open canal that leads to the ocean.

The tunnel, build for project owner, Department of Public Work and Town & Country Planning Authority will alleviate flooding and drain the flood water on Samui Island from its busy urban areas to the ocean. Being part of the main Ring Road revitalization and improvement project, the water tunnel will significantly improve the rainwater collection from roadway run-off along Samui’s main ring road.

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