SI Works: Undisturbed (UD) Sample & Mazier Sample

Summary:
Undisturbed samples are taken with thin-walled tube sampler for soft to very soft soil depending on the SPT N value. Meanwhile, undisturbed core samples from stiffer cohesive soil are obtained by using mazier core barrel, a double-tube swivel type retractor barrel.
When coring in harder materials, the spring loaded inner tube comes under pressure and the inner tube retracts, so now the core lifter case assumes a normal position. A PVC coreliner is used inside the inner tube to retain the core, and a “basket” catcher can be used to prevent soft materials from slipping out.
Seberang Teknik Sdn Bhd is a geological & geotechnical engineering service provider based in Sibu, Sarawak Malaysia. For any enquires regarding soil investigation works, please contact us at:
G/FL. No. 3, Lorong Tunku Abdul Rahman, 8B1, 96000 Sibu, Sarawak.
Email: [e-mail]
Tel: [phone] (Mr. Raymond Entebang)