نتایج جستجو برای: subgrade reaction coefficient
تعداد نتایج: 577656 فیلتر نتایج به سال:
The authors present a simple elastostatic approach to estimate a suitable subgrade modulus from falling weight deflectometer (FWD) data. An effective surface modulus is defined on the basis of Boussinesq-Newmark equations. Deviations between the model assumptions and actual in situ conditions are reflected in the effective surface modulus variation with radius. The variation indicates which sen...
With the rapid development of national economic construction, traffic network is extending continuously, and the scope of the highway construction is gradually shifting from plain to the mountains. However, weathered rock occupies heavily along highway in mountainous area, and high quality subgrade filling is extremely short, thus a large amount of subgrade filling needed for subgrade high-fill...
It is known that the calculation of soil parameters in different ways geotechnical engineering important terms interpretation and obtaining reliable results. The subgrade reaction coefficient can generally be calculated by field loading tests, laboratory tests various empirical relations. obtained using methods relations have very values. calculations, which are one most used interaction struct...
Figure 2. Bearing capacity determined from astronaut bootprints (Modulus of Subgrade Reaction) [2]. Inset (upper left) shows a cross-section of bootprint and the forces involved. Other parameters can be measured using the astronaut’s boot or walking stick. They include surface temperature, dust accumulation, and penetrometry. These and other sensors will provide useful material information to g...
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