Resourcization of Argillaceous Limestone with Mn3O4 …

The maximum adsorption capacities of lead (Pb2+), copper (Cu2+), and nickel (Ni2+) ions on Mn3O4-modified argillaceous limestone (Mn3O4–AL) in mono-metal systems were …

Side Load-Transfer Mechanisms in Drilled Shafts in Soft Argillaceous …

Elastic-plastic axisymmetric finite-element analyses were performed to investigate the side load-transfer mechanism of drilled shafts socketed into cohesive intermediate geomaterials (very hard clays/very soft rocks). The roughness of the concrete-geomaterial interface was modeled explicitly by assuming sinusoidal undulations along a discontinuous surface. …

Regional stratigraphy, facies distribution, and hydrocarbons …

In Oman, the Pg30 MFS is located in the limestone near the base of the Taqa Formation (Hughes-Clarke 1988), gradually changing into shale at the base of the Fars …

Axial flow hydraulic pulse testing of an argillaceous limestone …

Lindsay Limestone is an argillaceous limestone encountered in Southern Ontario, Canada. The Lindsay formation is regarded as a suitable geologic medium for the construction of a Deep Geologic Repository for storing low to intermediate level nuclear waste. The Lindsay Limestone is a nodular argillaceous rock with very low …

A New Approach to Estimate Side Resistance of Rock Socketed Drilled

Key words drilled shafts GSI Hoek-Brown criterion load transfer mechanism side resistance (IGC: G1/H1) REFERENCES 1) R.J. Castelli, K. Fan, O-Cell test results for drilled shafts in marl and limestone O'Neill, M.W. Townsend, F.C. Proc. Int. Deep Foundation Congress 2002: An Int. Perspective on Theory, Design, Construction, and …

Self-sealing capacity of argillaceous rocks: Review of …

DOI: 10.1016/J.PCE.2008.10.063 Corpus ID: 129442504; Self-sealing capacity of argillaceous rocks: Review of laboratory results obtained from the SELFRAC project @article{Geet2008SelfsealingCO, title={Self-sealing capacity of argillaceous rocks: Review of laboratory results obtained from the SELFRAC project}, author={Maarten van …

Argillaceous limestone: Mineral information, data and …

A limestone containing an appreciable amount (but less than 50%) of clay; e.g., cement rock. Ref: AGI

Experimental study on the hydraulic fracture …

Laminar argillaceous limestone cores. FIGURE 2 XRD mineral content characteristic value d of cores (A) Core form well X1, (B) Core form well X2, (C) Core form well X3, and (D) Core form well X4.

Experimental study on the hydraulic fracture …

Number Well Depth (m) Peak load (kN) Tensile strength (MPa) Average strength (MPa) 1 X2 3653.1 0.78 1.59 1.76 2 X2 3653.1 0.94 1.92 3 X2 3653.1 0.86 1.76 ... argillaceous limestone continental shale has a significant impact on the complexity of fracturing fractures. When preparing artificial

Analytical Model for Load-Transfer Mechanism of Rock …

The mobilization of side resistance has a significant effect on load-transfer characteristics and the ultimate bearing capacity of rock-socketed piles. A good understanding of the shear mechanism of a concrete–rock interface has a critical part in analytical load-transfer solutions of rock-socketed piles.

Classification of Sedimentary Rocks

Texture: Grain Size > 2 mm. Clastic Unconsolidated: gravel (rounded), rubble (angular) Consolidated: conglomerate (rounded), breccia (angular) Size Grades (mm): 2-4 granules; 4-64 pebbles; 64-256 cobbles; >256 boulders Composition of Major Fraction: Volcanic Ejecta (also in grain size 1/256-2 mm category)

A textural classification of argillaceous rocks …

Cut slope surface deterioration in the N-1 road at Ormaiztegi in the Gipuzkoa province, N Spain. The argillaceous rock decomposes around the bolt thus preventing its proper operation

A textural classification of argillaceous rocks and their …

Argillaceous rocks can display a wide range of durability behaviour after excavation and in cut slopes. In . 16 . ... of limestone, sandstone or conglomerateare present, disaggregation of the argillaceous rock results in . 70 . overhangs, which may produce topples and failures, especially if vertical joints parallel to the slope face ...

The Slake Durability of Argillaceous and Non …

The Slake Durability of Argillaceous and Non-argillaceous Rocks: nsights rom Eects of… 5117 1 3 marl samples and 5 dierent limestone samples belonging to argillaceous and non-argillaceous rocks, respectively. Figure 2 shows the trenches of the sampling locations. The block samples were transferred to the Engineering Geology

Geological and engineering characteristics of expansive soils …

The main types of expansive materials in northern Oman were found to be bentonitic mudstones, marls and silty mudstones, argillaceous dolomitic limestone, altered conglomerates and desert fill derived from these materials.

Cyclic loading effects on the strength and fatigue properties …

In short, material strength and rock bearing capacity are two different concepts. In the case of argillaceous siltstone, friction played a decisive role in load-bearing capacity. The porosity of the argillaceous siltstone reached 19.98 %, and mineral particles smaller than 38 μm accounted for 71 %.

An overview of the engineering properties of Cenozoic …

Locally, in Oman, argillaceous rocks have been studied because of their water-expansive properties (see Al-Rawas and Quamaruddin 1998) which prove …

(PDF) A Review of the Cretaceous Formations in the Arabian …

This formation is the upper part of the Musandam Limestone of the Oman Mountains (lower part of units K, J, and possibly I) of Hudson and Chatton (1959); zones V and VI of ADMA (Abu Dhabi Marine Co.) usage in offshore Abu Dhabi. ... Nairn 379 OFF SHORE IRAN MUDSTONE WACKESTONE GRAINSTONE PACKSTONE ARGILLACEOUS …

Disintegration characteristics and mechanism of red-bed argillaceous …

Red-bed argillaceous siltstone is a common soft rock in the drawdown area of water diversion project extending from the Yangtze to Huaihe Rivers, with the characteristics of water softening and disintegration, which directly threatens the stability and safety of the diversion project. To better understand the effect of cyclic …

Geological and engineering characteristics of expansive soils …

The main materials exhibiting expansive behaviour are: bentonitic mudstones; marls and silty mudstones; argillaceous dolomitic limestones; altered conglomerates; …

A load-transfer function for the side resistance of drilled shafts in

The shaft capacity of hard limestone obtained from the load test at the final loading step was 1.4 times larger than the shaft capacity that is obtained using the highest value of limit unit shaft ...

A textural classification of argillaceous rocks and their …

On the other hand, carbonatic sediments and rocks (limestone, dolomite) are defined as having more than 50 % of carbonate content. This percentage must not include the carbonatic cement although this requirement is not necessary in the classification of the USGS ().Several researchers suggest that the classification of the argillaceous rocks …

Buildings | Free Full-Text | New Design Criteria for Long, …

This paper presents an analysis of long, large-diameter bored piles' behavior under static and dynamic load tests for a megaproject located in El Alamein, on the northern shoreline of Egypt. Site investigations depict an abundance of limestone fragments and weak argillaceous limestone interlaid with gravelly, silty sands and silty, …

Iran's crude oil reserves and production

The older Sarvak Formation consists of a lower argillaceous limestone, grading upwards into massive microporous limestone and nodular chert. The porosity of between 7–14% is due to fissuring, and the gross and net thickness range from 24–790 m (79–2,591 ft) and 5–285 m (16–935 ft).

Limestone NIST SRM 1d, argillaceous

SRM 1d is composed of argillaceous limestone quarried in Putnam County, Indiana, USA. A unit of SRM 1d consists of a single bottle containing approximately 70 g of material of which 97 % passes a 75 μm (No. 200) sieve. For more information, please refer to …

Profiling of weathered argillaceous limestone rock with …

Advanced drilling was employed for the ongoing excavation of a tunnel on Wu-Kai Expressway in Chongqing, aiming to characterize the ground condition ahead of the tunnel face and avoid potential geohazards. Measurement While Drilling (MWD) system and the hydraulic rotary crawler drilling machine are used for the advanced drillhole in the …

Competitive adsorption of Cd2+, Pb2+ and Ni2+ onto Fe3

In present study, the feasibility of applying a natural adsorbent with Fe3+ modification (Fe3+-modified argillaceous limestone, FAL) on the competitive adsorption of heavy metals (i.e., Cd2+, Pb2 ...

Anisotropic thermal properties of an argillaceous rock under …

The Tamusu mudstone used in this study taken from the Tamusu area of the Bayin Gobi Basin, Inner Mongolia. This region is a candidate site for China's argillaceous rock geological repository for HLW [[33], [34], [35]].As shown in Fig. 1 (a), the argillaceous rock stratum in the Tamusu pre-selection area under study is the lower part of the upper …

Influences of Saturation and Wetting-Drying Cycle on …

(a) Argillaceous limestone specimens and (b) RTX-4000 GCTS rock mechanics test system. …

11. FOUNDATIONS ON ROCK

Cemented shale, siltstone, sandstone, limestone without cavities, thoroughly cemented conglomerates, all in sound condition b,c Compaction shale and other argillaceous rocks in sound conditionb,d Broken rocks of any kind with moderately close spacing of disconti­ nuities (0.3 m or greater), except argillaceous rocks (shale) Low-medium 0.5-1 1