An analysis of innovative and maintenance free active pre-stressed soil nail with reinforced grout hybrid anchor in the region of Rawang, Malaysia

• Autorzy: Jamain, Mohd Fadhil , Muda, Mohammad Ashari , Beddu, Salmia , Noor, Mohamad Jamaludin Md , Manan, Teh Sabariah Binti Abd , Ahmad, Mushtaq
• Języki publikacji: EN

Abstrakty

EN

Steep cut slops along the highways and hillsides closer development projects are generally stabilize using soil nailing method in Malaysia. Soil nail system (i.e., passive and active soil nail systems integrated with tendons pre-stressed) is widely applied to strengthened slopes. However, slope failures occurred observing flaws on the fundamental design. The loss of the pre stressed tension on the creep behaviour of the nail tendon affects the functionality of the soil nail system. This research has introduced a cylindrical shape reinforced grout hybrid anchor and the objectives is to assess its efficiency at refraining the creep behaviour of the soil. Therefore, laboratory evaluation of the pull-out creep behaviour of the anchor was assessed in a large pull-out box (length: 2 m, σ: 1 m×1 m). An effective stress of 100 and 200 kPa were applied to the soil in the pull-out box. The creep behaviour was tested at the pull-out tensions of 100 and 200 kN, respectively. Results show that the prestressing force is the main factor affecting the stress and deformation in the soil. The anchor was able to mobilise the tensions of 100 and 200 kN. The load was maintained, and the creep behaviour was monitored. A minimal amount of creep (approximately 1 mm) was observed. This finding presents a good justification showing that, the anchor could resist creep and thus can function as a maintenance free active soil nail system.

Słowa kluczowe

PL

gwóźdź gruntowy; kotwa hybrydowa zbrojona; mechanika gruntów; zachowanie gleby; rozciąganie

EN

soil nail; reinforced-grout hybrid anchor; soil mechanics; soil behaviour; tensile; creep displacement

• Czasopismo: Acta Geophysica
• Rocznik: 2022
• Tom: Vol. 70, no 6
• Strony: 2965--2978
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Jamain, Mohd Fadhil

• Faculty of Civil Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia,
• Selia Kreatif Sdn Bhd, 9-3, Jalan PJU 8/5a, Damansara Perdana, 47820 Petaling Jaya, , Selangor, Malaysia

autor

Muda, Mohammad Ashari

• Faculty of Civil Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia,
• Jabatan Kerja Raya, Jalan Sultan Salahuddin, 50582 Kuala Lumpur, Malaysia

autor

Beddu, Salmia

• Selia Kreatif Sdn Bhd, 9-3, Jalan PJU 8/5a, Damansara Perdana, 47820 Petaling Jaya, , Selangor, Malaysia ,
• Institute of Energy Infrastructure, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43000 Kajang, Selangor, Malaysia

autor

Noor, Mohamad Jamaludin Md

• Faculty of Civil Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia,
• Selia Kreatif Sdn Bhd, 9-3, Jalan PJU 8/5a, Damansara Perdana, 47820 Petaling Jaya, , Selangor, Malaysia

autor

Manan, Teh Sabariah Binti Abd

• Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, Kuala Nerus, 21030 Terengganu, Darul Iman, Malaysia,

autor

Ahmad, Mushtaq

• Institute of Energy Infrastructure, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43000 Kajang, Selangor, Malaysia,

Bibliografia

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• 2. Bo MW, Fabius M, Arulrajah A, Horpibulsuk S (2015) Environmentally friendly slope stabilization using a soil nail and root system in Canada. In: Chu JJ, Rujikiatkamjorn C (eds) Ground improvement case histories. Butterworth-Heinemann, Oxford, pp 629–654
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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).

Identyfikatory

DOI

10.1007/s11600-022-00892-7