Search results for: Free PDF Quiz 2024 High Hit-Rate EMC D-PM-IN-23 Latest Test Report 🍂 Search for ✔ D-PM-IN-23 ️✔️ and download exam materials for free through [ www.pdfvce.com ] 🦞Questions D-PM-IN-23 Exam
-
Diaphragm Wall Embedment Depth Design In Road Underpass Tunnel Project In Singapore
This paper describes the process for diaphragm wall embedment depth design in a single level underpass project in Singapore. The proposed underpass is located at an extremely heavy traffic junction/interchange. The existing Northeast Line MRT (NEL) tunnels run directly beneath the underpass for much of its length. The existing Woodsville Flyover is in close proximity to the proposed underpass structure. Other major constraints include an adjacent existing deep sewerage tunnel and residential/commercial buildings.
Different design conditions were considered in the diaphragm wall embedment depth design, which include soil retaining walls in bottom up construction and load bearing elements in top down construction and permanent condition. Finite element models (FEM) using geotechnical software Plaxis were implemented for earth retaining structure design and damage assessment for the impacts on the adjacent existing tunnel/flyover/building. Adequate wall embedment depths were to be verified by hand calculations in terms of geotechnical capacity of the diaphragm wall, floatation resistance, toe kick-out stability, basal heave stability and blowout failure issues. The proposed embedment depths in design drawings were reviewed by using predrilled holes results during the construction stage.
-
Use Of 3D FEM Model To Assess The Impact Of Deep Excavation On Existing Sydney Water Tank Stream
A residential-commercial development located in Alfred Street, Sydney (Circular Quay) was to be constructed adjacent to the heritage structure Tank Stream, currently owned by Sydney Water Corporation (Sydney Water), with a 6-level basement extending to approximately -17.3 m AHD (Australian Height Datum) resulting in an approximately 21 m deep excavation. The Tank Stream comprised a range of construction including brick oviform section, stone arch and twin concrete pipes employed to replace a damaged section. Due to the proximity of the proposed excavation to the Tank Stream, a geotechnical impact assessment was warranted. As part of the impact assessment work, a three-dimensional finite element numerical modelling (3D FEM) was carried out to assess potential impacts of the basement construction on the various components of the Tank Stream. The retention system was designed to satisfy a reasonably stringent criteria intended to keep oviform and stone arch components in compression. The paper discusses the development of the numerical model, the results of the analysis and the predicted ground movement arising from the construction and the measures taken to monitor and protect the Tank Stream. Inclinometer monitoring results are presented for comparison against the movements predicted from modelling.
-
AGS NSW Research Award 2021
Vienti Hadsari, Yuxiao Li, Dr Ebrahim Alaei and Rakesh Sai Malisetty
-
Urban Stormwater and Groundwater Management for Water Sensitive Urban Design Outcomes
Bill Till MIEAust CPEng.