Showing papers in "Engineering Geology in 1988"

TL;DR: Derbyshire et al. as discussed by the authors compared the geotechnical characteristics of some loess and loessic soils from China and Britain: a comparison, and found that despite their geographical separation, the deposits from both locations have a remarkable similarity in some of their physical properties.

TL;DR: Based on the microstructure analyses, Gao et al. as discussed by the authors assumed that the formation and development of the structure of collapsing loess in China has undergone five stages: the loessization stage, the formation stage, development stage, degeneration stage and the clayization stage.

TL;DR: In this article, the tensile strength of two coals were measured in carbon dioxide and nonsorbing (helium) atmospheres up to pore gas pressures of 3.5 MPa, and it was shown that gas sorption produces no significant reduction in coal strength at the 95% confidence level.

TL;DR: In this article, the results of a series of tests conducted on loess samples from one locality, tested under the condition of confined and hydrostatic compression are presented and analyzed, and a collapse surface is depicted and the phenomenon hypothetically generalized for other types of collapse.

TL;DR: In this paper, a microstructure model of Chinese loess is suggested, which can explain its collapsible behaviour and the sensitivity of the mechanical properties of macroporous loess to slight changes of the water content.

TL;DR: In this article, a detailed 1:2000 scale geomorphological and geotechnical survey of the Widenbach valley is presented, with a focus on the behaviour of various discontinuity planes expressed in the terrain.

TL;DR: Lin et al. as discussed by the authors conducted laboratory tests on samples of deep-seated loess from different locations of the loessial regions of northern China, including Shaanxi, Gansu, Shanxi and Honan Provinces.

TL;DR: In this article, it is shown that liquefaction flow slides in coastal soil deposits may be initiated by small to moderate drawdowns consistent with those observed in actual slides. But the causes of these slides have never been well understood.

TL;DR: In this paper, the present-day state of the methods of improvement of loess soils as a base and material for engineering constructions is discussed, and the applicability of these methods, their recent development as well as typical case histories have been discussed.

TL;DR: In this article, Lutenegger et al. show that the natural stability of loess soils can be related to fundamental geotechnical properties such as Atterberg limits, water content and void ratio.

TL;DR: Grabowska-Olszewski et al. as discussed by the authors presented characteristics of granulometric, mineral and chemical compositions with reference to origin, facies and stratigraphic position of these soils, as well as their lithofacies classification.

TL;DR: In this paper, the authors pay particular attention to the effects of the seam factor from research conducted from the end of the nineteenth century to the deductions of modern day workers and identify the spontaneous heating in underground coal mines as a combination of seam factor, the geological factor and the mining factor.

TL;DR: In this article, the use of fault tree analysis for evaluating escapeway reliability is discussed, and a brief analysis is also conducted to determine the occurrence probability of the TOP event.

TL;DR: In this paper, the authors reviewed the availability, distribution and uses of wastes from most mining countries of the world and identified concrete aggregates for construction purposes, and for production of brick and tile, cement and pozzolana and as pigments for paints.

TL;DR: In this paper, the authors explain the mechanics of bluff recession and the long-term trends in the evolution of coastal bluffs using data obtained over long periods from air-photos.

TL;DR: Bally et al. as discussed by the authors presented a case history of wetted loessial soils in civil engineering, including the following: surpassing soil bearing capacity and non-stabilized settlements of buildings after initially dry loess wetting; slow but nondamped settlements or damped but great and, eventually, non-uniform settlements of structures erected on wet loess; supplementary settlements by water level lowering in loessia ground; great settlements of deep foundations passing through the collapsible loess to the underlaying wet but noncollapsible loESS.

TL;DR: In this paper, an experimental bench top procedure is described to determine the acid production response of a 350 ton simulated backfill of coal associated rocks exposed to natural weathering conditions with better than 90% confidence.

TL;DR: In this article, the porosity and swelling strain of carbonate rocks are used to classify carbonate materials based on their geotechnical properties and their properties reflect a wide variation of composition.

TL;DR: The morphotectonic junction and its structural features reflect the existence of a major fault along the bottom of the Jordan River gorge, where a probable transform fault was previously inferred by regional platetectonic studies as mentioned in this paper.

TL;DR: In this paper, the effect of width to diameter ratio on fracture toughness was examined in detail and a minimum ratio of 0.8 was recommended, which is the minimum required for fracture toughness.

TL;DR: In this paper, the influence of void ratio on the collapse settlement of opencast mine backfill is investigated and a settlement cell designed for this purpose is described together with the critical factors affecting the test results.

TL;DR: In this article, some guidelines are proposed for partial or full protection in order to prevent possible damage to the pipeline, based on the assumptions that the pipelines are thin and that the ground subsidence can be predicted by the probability function integration method fairly well.

TL;DR: In this paper, an investigation of a landslide involving a federal highway, the Umuahia-Bende Road, in southeastern Nigeria is presented, where the slide occurred in an apparently stabilized slope one year after a previous “corrected” slide.

TL;DR: In this article, a new method was introduced to determine optimum blasthole diameter, burden, spacing, stemming length, ratio of maximum burden to the bench height and relationship between the blastability, rock strength factor and specific consumption of explosive.

TL;DR: In this article, the use of side-slewable belt conveyors in large-scale surface mining, in conjunction with in-pit crushing, is discussed and compared to other systems.

TL;DR: Milovic et al. as discussed by the authors presented the results of laboratory and field tests which were carried out on loess in Yugoslavia and established a correlation between the initial dry density, initial water content and unconfined compression strength.

TL;DR: Sweeney, S.J. and Smalley, I.A. as mentioned in this paper reported that the Atterberg limits of Canadian loess are comparable with reference samples from the U.S.

TL;DR: In this paper, the authors investigated the relationship between geology, convergence and powered support rating at various collieries in the Illawarra Region of N.S.W. (Australia) and the Scottish area of the British Coalfields.

TL;DR: Rendell et al. as mentioned in this paper compared the pore size distributions of laboratory and naturally consolidated loess before and after laboratory consolidation with those for samples that had undergone natural compaction.