what exactly is modulus of resilience of soil?
492924
i'm not exactly sure, but i would think that it would depend on the soil composition.  after all a fine clay has much different properties than a sandy or rocky soil
235878
Soils vary widely in composition and structure from place to place. Soils are formed through the weathering of rock and the breakdown of organic matter. Weathering is the action of wind, rain, ice, sunlight and biological processes on rocks, which breaks them down into small particles. The proportions of minerals and organic matter determine the structure and other characteristics of a particular soil.\n\nSoils can be divided into two general layers (strata): topsoil, the topmost layer, where most plant roots, microorganisms, and other animal life are located, and subsoil, which is deeper and often more dense and contains less organic matter.\n\nWater and air are also components of soils. Mineral and organic solids comprise about half of the soil by volume. Water occupies the spaces between soil particles and is held by surface tension on particle surfaces. Air occupies the remaining void space. Both water and air components of soils are important to plant growth and other life in the soil profile of a particular ecosystem.\n\nThe rock and mineral content of soils is categorized according to particle size, from sand (coarsest), to silt and clay (finest). The ratio of these particles to a great degree determines the soil classification and characteristics.\n\nSoils serve as habitats for soil organisms varying in size from microorganisms to small animals. The character of soils is intricately tied to bioturbation and the biochemical functions performed by soil organisms.\n\nFormer soils which become buried below the effects of organisms are called paleosols.\n\nSoils develops naturally over time through the action of plants, animals, and weathering. Soils are also affected by human habitation. People can alter soils to make them more suitable for plant growth through the addition of organic materials and natural or synthetic fertilizer, and by improving their drainage or water-retaining capacity. Human actions also can degrade soils through the depletion of nutrients, pollution, contamination, and compaction, and by increasing the rate of erosion, which is the relocation of soil through the movement of water or wind.
656252
It is because the round or circular shape is the most uniform shape of all (there are no edges or corners) - this means the amount of stress force exerted from the surrounding soil is uniformly distributed onto it; wheareas if it was some other shape with corners or edges, then stress concentration would be higher at those places, which would cause cracks/erosion that can destroy the pothole.
73982
Same as the foundation of a house, except bigger.\n\nThere are several ways to build the foundation depending on the soil structure and the estimated weight of the skyscraper.
407589
That completely depends on the conditions in the soil- If its fairly dry, you would have a hard, dessicated tissue much like jerky.  In a moist but anoxic soil, the tissue would be well preserved.  In normal moist and oxygenated soil, there would be very little tissue left.
1089540
The elongation index is the % by weight of those particles present in an aggregate sample whose greatest dimension(length) is greater than 9/5 th of their mean dimension.\n\nThe flakiness index is the % by weight of those particles present in an aggregate sample whose least dimension(thickness) is lesser than 3/5 th of their mean dimension.\n\nThe presence of these particles in a concrete should not be more than 15% to obtain a durable concrete
470540
http://en.wikipedia.org/wiki/Strength_of_materials
377582
We use the heavier sand, not the fine playsand, it's a little heavier(probably more rock in it). It seems to hold up better.
338480
That is a good & interesting question.\n\nIn all logical aspects, this should occur due to the fact that everything in nature trys to balance out. This includes things like air pressure; it travels from high to low areas of pressure. In the same manner, everything that is uphill or of higher elevation trys to balance w/ those that are of lower elevation; hence erosion & drainage basins in general.\n\nIn order for this to occur, a lot of sediment would have to be washed into the drainage basin's streams & rivers. That would take a very long time.\n\nAlthough I think the answer here has to do with the fact that the earth's crust rebounds in a process called isostatic adjustment.\n\nWhen material is removed from the crust to another location, weight is taken off of an area. The crust will readjust to the former height by rising slightly.\n\nIt's just like placing several blocks of wood in a container of water. As you take off one of the blocks, the rest of them will rise in response to the reduced load.\n\nThats my answer & I'm sticking to it.\n\n:)
1112775
The density of dry loose gravel regardless of size is on average about 90 to 105 pounds per cubic foot. This assumes a fairly consistent size. If the gravel is a mixture of large and very fine material then it will be some what higher because the fine grains will fill in between the larger pieces. \n\nAny granular material that is evenly graded (all pieces about the same size) will have the same degree of void space between granules. It calculates to around 30% (I don't remember the exact number but you can calculate it you like). Most sand and gravel is made of the same ground up rock, therefore density of the individual grains or pieces is the same. With 30% of any cubic foot the same and the density of the grains the same, sand or gravel will have the same density.
857774
I know about what they call Pandemic(sp) earth, it's soil mixed with Portland cement and packed, cured with the available moisture and it works well as a soil stabilizer... they used it to make runways in WWII.
328265
Wet soil, Humid atm, Loamy soil, Proper Sunlight.
346958
Yes, soil moisture.\n\nBut how about the degree of ionicity of the soil; wouldnt that depend on the kinds of minerals in the soil (which is likely to vary as well)...\n\nCordially,\nJohn\nhttp://www.GodSci.org
406491
go www.google.ae  use key of civil engineering soil test.  also universities and colledges of civil engineering make the tests.
904405
Yielding is when a material deforms plastically, that is when you bend it it will not recoil to its original shape.  Strength to weight ratio is merely a value given to a material that describes its ability to withstand force related to its weight or density (for example an airplane would want a lightweight material that is very strong).  Lastly a point load is a load that a force is being applied in one specific loaction, in reality this is impossible but when contact areas are very small we assume them to be point loads.  A distributed load is one where a force is applied over a given area.  A person generates a distributed load on the floor over they area of their soles of their feet for example.
599976
There are any number of examples. \n\nFor example many plant species and even entire communities have distributions controlled by soil type to the degree that it is normal to refer to sandstone communities or basalt communities.
1075431
Strength of material, velocity, distance; any of these ring a bell!