نتایج جستجو برای: grained soil
تعداد نتایج: 203811 فیلتر نتایج به سال:
Aspects in Mining & Mineral Science The Environmental Impact of Using Fine-Grained Cements as Injection Materials for Soil Grouting - A Mini Review Christodoulou Dimitrios* Department Sciences, University Thessaly, Greece *Corresponding author: Dimitrios, Campus Gaiopolis, Larissa, Submission: September 16, 2022;Published: 27, 2022 DOI: 10.31031/AMMS.2022.10.000727 ISSN 2578-0255Volume10 Issue1
Recent ground failure case histories after 1994 Northridge, 1999 Kocaeli and 1999 Chi-Chi earthquakes revealed that low-plasticity silt-clay mixtures generate significant cyclic pore pressures and can exhibit a strain-softening response, which may cause significant damage to overlying structural systems. In this study, results of cyclic tests performed on undisturbed specimens of ML, CL, MH and...
Earthquake-induced liquefaction is an unpredicted phenomenon that causes catastrophic damages and devastation to the environment, structures, human life. The assessment of soil behavior a decisive work for geotechnical engineers especially during designing phase any civil engineering projects. These decisions implicate tedious costly experimental procedures extensive evaluation. Considering the...
Technological progress in tunneling has led to modern and efficient tunneling methods in vast underground spaces even under inappropriate geological conditions. Identification and access to appropriate and sufficient geological hazard data are key elements to successful construction of underground structures. Choice of the method, excavation machine, and prediction of suitable solutions to over...
A highly effective biological fertilizer (bio-fertilizer) can be produced cheaply in countries that have a source of a suitable type of zeolitic rock (tuff). Such rocks occur worldwide in areas of past or current volcanism. In the event of explosive volcanic activity huge volumes of silicic glass and other debris are projected into the atmosphere. Reaching high altitude the fine material is sep...
Coarse-grained soil is widely used in the seasonal frozen region as subgrade filler. However, substantial frost heave has been observed coarse filler high-speed railway embankments. To investigate characteristics of coarse-grained a deep zone, indoor tests were carried out under water supply and no conditions. The effect water, fineness, temperature on behavior studied experimentally. relations...
The design of geotextile containers for dewatering applications typically requires hydraulic compatibility between the geotextile and the confined fill material. Ideally, a geotextile container must successfully retain the solid phase of the fill material and must not be clogged during the dewatering process. This becomes difficult to achieve when the fill material is fine grained and the pore ...
The optical properties of lunar softs are different than those of rocks from which they are derived. As a consequence of lunar space weathering, soils are darker and exhibit a distinctive red-sloped continuum and weaker mineral absorption bands. The accumulation of dark glass-welded aggregates (agglutinates) has been thought to account for these optical effects of space weathering on lunar soil...
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