A geotechnical investigation of marine deposits in a nearshore seabed for land reclamation

Canadian Geotechnical Journal - Tập 36 Số 6 - Trang 981-1000 - 1999
Kin-Man Lee, Patrick C.C. Ng

Tóm tắt

The properties of marine deposits in a nearshore seabed at a land reclamation site in Hong Kong were investigated. A variety of laboratory and in situ tests were conducted to define the geotechnical and consolidation characteristics of the marine deposits. The reliability and applicability of various laboratory and in situ testing techniques in evaluating the coefficient of consolidation were examined. Coefficients of consolidation were calculated from conventional oedometer tests, large-diameter (250 mm) Rowe cell tests, field permeability tests, and piezocone dissipation tests. Three techniques were adopted to evaluate the horizontal coefficient of consolidation ch from the results of in situ piezocone dissipation tests. Results from in situ pore pressure dissipation tests are compared with those from large-diameter Rowe cell tests performed on undisturbed samples under both vertical and horizontal drainage conditions and in situ permeability tests to provide reference values of the vertical coefficient of consolidation cv and ch. The engineering implications, particularly those related to land reclamation work in the nearshore environment, of various laboratory and field tests are discussed.

Từ khóa


Tài liệu tham khảo

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Thông tin
Thông tin xuất bản

Canadian Geotechnical Journal

Tập 36 Số 6

981-1000

Thông tin tác giả