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Physical Characterization of a Deep Weathering Profile Over Rhyolite in Humid Tropical Peninsular Malaysia
Springer Science and Business Media LLC - Tập 36 - Trang 3793-3809 - 2018
John Kuna Raj
The weathering profile, exposed at 38.2 km of the Kuala Lumpur—Karak Highway, can be differentiated into three broad zones; the topmost Zone I (pedological soil) comprising A, B and C soil horizons and made up of clayey silty sand with indistinct relict bedrock textures. The intermediate Zone II (saprock) consists of gravelly silty sand with distinct relict bedrock texture and structures, and can ...... hiện toàn bộ
Stability of an Embankment on Soft Consolidating Soil with Vertical Drains
Springer Science and Business Media LLC - - 2016
Agrahara Krishnamoorthy, Smit Kamal
Recommendations for a Quantitative Description of Joint Orientation Data
Springer Science and Business Media LLC - Tập 37 - Trang 1503-1514 - 2018
Marie-Hélène Fillion, John Hadjigeorgiou
A comprehensive joint orientation data collection program is necessary to ensure a sufficient degree of confidence in constructing a structural model. This paper investigates the influence of the number of joints sampled on the characterisation of the joint dip and dip direction. In a series of numerical experiments, Discrete Fracture Networks (DFNs) were used to model joint set populations. The a...... hiện toàn bộ
Influence of Petrogenesis on Suitability of Some Pelitic Rocks as Construction Aggregates in South-Eastern Nigeria
Springer Science and Business Media LLC - Tập 33 - Trang 1395-1407 - 2015
Celestine O. Okogbue, Tochukwu A. S. Ugwoke
Ten rock samples, collected from five studied Albian rock quarry units, were subjected to hand specimen and X-ray diffraction studies to determine their petrography and also to two degradability test versions of soaking and drying to simulate their resistance to intra-seasonal and inter-seasonal weathering that occurs in south-eastern Nigeria. Nine of the samples, which are pelitic in composition,...... hiện toàn bộ
A Parametric Analysis on the Influence of the Binder Characteristics on the Behaviour of Passive Rock Bolts with the Block Reinforcement Procedure
Springer Science and Business Media LLC - - 2020
Pierpaolo Oreste, Giovanni Spagnoli, Andrea Giuseppe Buccoleri
Influencing Factors of the Rebreak of the Key Rock Block of the Main Roof in the Gob
Springer Science and Business Media LLC - Tập 40 - Trang 4345-4356 - 2022
Yang Li, Yuqi Ren, Yikun Liu, Nan Wang, Xinghai Lei
In view of the phenomenon that upright triangular zone and inverted triangular zone of the collapsed roof appeared alternately in the gob, a mechanical model of the rebreak of the key rock block (KRB) of the main roof in the gob was established by using theoretical analysis. The main reason for the rebreak of KRB was revealed and the bending moment expression at any point of KRB was obtained. So, ...... hiện toàn bộ
Mechanism of the Mudstone Tunnel Failures Induced by Expansive Clay Minerals
Springer Science and Business Media LLC - Tập 35 - Trang 263-275 - 2016
Houjiang Zhang, Amoussou Coffi Adoko, Zhaojun Meng, Hao Wang, Yuyong Jiao
Expansive clay minerals can be a serious threat to underground rock structure because of their swelling behavior when absorbing water. Roof and wall collapse as well as large deformation were observed in Xiaotun Coal Mine, Guizhou Province, China. This paper studies the characteristics of expansive clays in order to understand the mechanism of the mudstone tunnel failures in the mine. The physical...... hiện toàn bộ
Post-Yield Properties of Rock Salt Using the Concept of Mobilized Strength Components and the Dilation Angle
Springer Science and Business Media LLC - Tập 35 Số 6 - Trang 2841-2849 - 2017
Linjian Ma, Yang Fa, Hongfa Xu, Zhinan Xie
Geotechnical evaluation of Miocene gypsum from Sivas (Turkey), Geotechnical and Geological Engineering
Springer Science and Business Media LLC - Tập 18 - Trang 241-241 - 2000
E. Karacan, I. Yilmaz
Behaviour of Hybrid Piled Footing Structures in Sands
Springer Science and Business Media LLC - Tập 36 - Trang 2273-2292 - 2018
Behrang Pedram
This paper investigates the lateral displacement and rotational behaviour of a combined footing resting at the ground level with a single pile structure installed in sands through constructing three-dimensional numerical models. In many cases, a pile restrained in a cap is considered as a fixed head pile (θ = 0), which is not a real representation of the case. There are no equations or guidelines,...... hiện toàn bộ
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