2 edition of Compressibility of stiff Bangkok clay found in the catalog.
Compressibility of stiff Bangkok clay
in Bangkok : Asian Institute of Technology, 1974
Written in English
|Statement||by Hon-Kuen Chuang and Za-Chieh Moh.|
|Series||Engineering characteristics of undisturbed soils in the Bangkok area : Phase report ; no. 14, Asian Institute of Technology research report ; no. 45|
|LC Classifications||MLCM 83/4170 (S)|
|The Physical Object|
|Pagination||xv, 209 leaves : ill. ; 28 cm.|
|Number of Pages||209|
|LC Control Number||79103755|
A comprehensive set of experimental data on Bangkok subsoils from oedometer and triaxial tests are analysed in this paper in order to determine the stiffness and strength parameters for Hardening Soil Model. The parameters determined are the. Compressibility model for highly sensitive Singapore marine clay. In Proceedings of the 11th Southeast Asian Geotechnical Conference, Singapore, March Southeast Asian Geotechnical Society, Pathumthani, Thailand. pp. –Cited by:
stiff-to-stiff clay; the thickness is around 10 to 20 m. The stiff clay has higher shear strength of more than kN/m2 and compressibility is very low. Below the stiff clay is the first sand layer and is generally found at a depth of 20 to 30m. There is an inter-bedded layer of sandy clay or clayey sand between the stiff clay and the first. Soft ground improvement techniques have become most practical and popular methods to increase soil strength, soil stiffness and reduce soil compressibility including the soft Bangkok clay. This paper focuses on comparative performances of prefabricated vertical drain (PVD) using surcharge, vacuum and heat preloading as well as the cement.
Introduction to Cone Penetration Testing Peter K. Robertson [email protected] ISSMGE Webinar Jan. CPT Guide – Dense sand/stiff clay (with qc > 10 MPa; >tsf) – excellent accuracy (> 1 to 5%) Soil Compressibility Compressibility linked to soil plasticity & amount/type of fines Increasing compressibility. the engineering properties to determine if the observed variability is a result of laboratory testing variability or subsurface variations across the site. The geotechnical designer is responsible for selecting the geotechnical engineering properties that are appropriate .
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Medium stiff and stiff to very stiff clays underlay the soft clay. The stiff to very stiff clay is deposited above the first sand layer (1st sand) that sits over a hard clay. The Atterberg's limits (LL and PL) of the stiff to very stiff and hard clays are practically identical to each other, but they differ from those of the soft and the medium stiff by: Compressibility of Bangkok clay in the weathered zone [Edward W.
Kanjanophas, Surindr, Brand] on *FREE* shipping on qualifying : Brand, Edward W. Kanjanophas, Surindr. plain (near Ayatthaya). The contour of the thickness of Bangkok soft clay is also presented in Fig.
Medium stiff and stiff to very stiff clays underlaythe soft stiff to very stiff clay is depositedabove the ﬁrst sand layer (1st sand) that sits over a hard clay. The Atterberg's. Compressibility characteristics of a lightweight cemented clay are important issues for deformation analysis.
This paper attempts to analyze and assess the compressibility characteristics of lightweight cemented clays. Three types of clay, kaolin, Bangkok clay and bentonite, representative of non- to high swelling clays are used for this by: Compressibility and permeability of Bangkok clay compared with kaolinite and bentonite.
soft to stiff Bangkok clays are meta-stable cemented clay and the very stiff Bangkok clay is overconsolidated cemented clay. The consolidation path of naturally cemented clay is governed by the cementation and the fabric.
At the post yield state (Break-up of cementation), the void ratio. Request PDF | On Compressibility of stiff Bangkok clay book 1,S. Horpibulsuk and others published Novel approach for analyzing compressibility and permeability characteristics of Bangkok clayey soils | Find, read and cite all.
embankments (TS1 to TS3) were constructed in stages on PVD improved soft Bangkok clay at Nong Ngu Hao, Thailand with PVD spacings ofand m, respectively, in a square pattern (Table 1).
The developed hypoplastic model for simulation of compressibility characteristics of cement-admixed Bangkok soft clay at high water content was proposed in this paper. By using unique equation, the model is able to predict the relationship between void ratio and vertical effective stress of different water and cement content of soil cement.
For practically convenient utilization and Author: Piyachat Chattonjai. Description and Classification of Soils and Rocks 4 The fundamental difference between these two proposals is that under the BS proposals, many ‘clays’ i.e. materials of low strength, very low permeability and high compressibility, must be termed silts, sands or Size: KB.
The compressibility and strength characteristics of reconstituted clays are used as a basic frame of reference for interpreting the corresponding characteristics of natural sedimentary clays.
The properties of reconstituted clays are termed ‘intrinsic’ properties since they are inherent to the soil and independent of the natural by: The traditional method used to describe the compressibility of natural clay is based on the compressibility indices (e.g., Cc, Cr) which are determined by means of 1-D consolidation tests.
The oedometer data are obtained from three different Bangkok soil layers: soft clay at 6–8 m depths; medium clay at 12–14 m depths; and stiff clay at –18 m depths. Due to the effect of structure, Bangkok clay is stable in a metastable state.
Its void ratio, e, is the summation of the void ratio sustained by the intrinsic fabric, e R, and the additional void ratio due to the structure, e intrinsic state line (e R versus log σ′ v, where σ′ v is the effective vertical stress) is developed in terms of the void ratio at the liquid limit, e by: The intense cycles performed in the laboratory produced a decay of compressibility and a shear strength approaching reconstituted values.
The conclusions are important when choosing the shear strength parameters required when studying shallow landsliding in clay words: weathered clay, structure, cycle of degradation, shallow by: the soft clay is medium stiff-to-stiff clay; the thickness is around 10 to 20 m. The stiff clay has higher shear strength of more than kN/m2 and compressibility is very low.
Below the stiff clay is the first sand layer and is generally found at a depth of 20 to 30m. There is an inter-bedded layer of sandy clay or clayey sand between.
Bangkok stiff clay represents an overconsolidated clay with an estimated overconsolidation ratio of approximately 4 (Sayed, ). In Paris, the most challenging sections are going to be excavated. Evaluation of Differential Settlement along Bridge Approach Structure on Soft Bangkok Clay Sorasak Seawsirikul, Korchoke Chantawarangul and Barames Vardhanabhuti Department of Civil Engineering, Rajamangala University of Technology Isan, Khonkaen, Thailand Abstract.
Excessive differential settlement along bridge approach is commonly found in Cited by: 2. The oedometer test data are studied for soft Bangkok clay at 6–8 m depths; medium clay at 12–14 m depths; and stiff clay at –18 m depths.
The triaxial test data are on soft and stiff clays at depths of 3–4 m and of 16–18 m, by: The soft Bangkok clay has been well known for high water content, low shear strength, and high compressibility, to geotechnical engineers.
Two Volumes + CD-ROM book. Proceedings of the 10th International Symposium on Landslides and Engineered Slopes, 30 June - 4 JulyXi'an, China. Landslides and Engineered Slopes. From the Past to Author: Zuyu Chen, Jian-Min Zhang, Ken Ho, Fa-Quan Wu, Zhong-Kui Li.
The clay layer would undergo settlement due to the fill above. When the clay layer settles, it would carry the piles down with it creating negative skin friction (downdrag) on piles. The negative skin friction forces could be as high as tons per pile. The capacity of the piles is not more than tons per pile.
Compressibility of Overconsolidated Clays. Shear Strength of Intact Overconsolidated Todi Clay. Post-Rupture Strength. Preliminary Study of Slip Surfaces in Kaolin. Ashford Common Revisited. Operational Strength of Stiff Fissured Clays. Discussion and Conclusions. Acknowledgements. Vote of Thanks.project site are associated with the problems of low strength and high compressibility of the soft clay strata, stiff clay 10~15 59 70 30 for the reconstituted soft Bangkok clay has been verified by Bergado et al ().