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explain the statement- subsidence of the ground another type of problem is the subsidence of the ground due to breakdown of weak rocks
collapsible soils and subsidencethere are soils which are quite stable when dry and they show large volume changes on wetting under load examples
what is floating foundationfloating foundationraft or mat is also recommended when the soil mass contains compressible layers or the soil stratum is
environments can cause deterioration of foundation can you explain this in the following casesa a column footing which was stable for a number of
explain in detail about the large excavationslarge excavations required for construction of rafts may need dewatering depending on the ground water
what are the alluvial sedimentsalluvial sediments are characterized by stratification or layering and fine grained soil layers have higher
what are the problem arise in pile foundationproblems can also arise in providing pile foundations in residual soils which are underlain by sloping
explain the uses of residual soilsresidual soils may be underlain by sloping rock which may contain weathered seams the possibility of foundations
what is strap footingstrap footingyou have to use cantilever or strap footings when the proximity of a property line precludes the use of other types
problems on structural design of combined footingsa two columns 50 cm x 50 cm in size support service loads of 1200kn and 800knthe centre to centre
determine in brief about the residual soilsresidual soils are generally very complex and varied they are the products of in-situ disintegration of
what are relevant design considerationsthe relevant design considerations may be summarized as followsa main reinforcement uniformly distributed is
state the types of foundations we saw the different types of foundations commonly adopted for specific situation in actual practice the situations
determine about the extent of excavationthe extent of excavation depends upon the construction problems like dewatering and uplift in extreme cases
what is floating foundations the settlement of foundations can be reduced if the applied load is compensated by excavation of a basement this
explain the uses of pier and well foundations well foundations are used to transmit large loads from piers of bridges and other marine structures
what are the two ways of pile foundationpile foundations can be installed in two ways timber steel and precast concrete piles are driven from the
explain in detail about the pile foundationswhere the support given by top soil is not sufficient and the load has to be carried deep down for
explain about structural design of combined footingstructural design of combined footingthe rectangular and trapezoidal combined footings are
what are the limitations with rectangular combined footingsin this section the analysis is limited to the determination of plan dimensions of the
what are rectangular combined footingsrectangular combined footingsin the design of rectangular combined footings it is assumed that the footing is
explain the meaning of a raft foundationa raft foundation as also combined footing cannot be considered to be the opposite of a slab supported on the
what are the conditions where combined footings usedtwo conditions in which it is used are asa when an exterior column is immediately adjacent to a
what are combined footingscombined footingswhen a footing supports two or more columns in the same line it is called a combined footing the combined
explain about the raft foundationsthe raft foundations are generally used for large loaded area on soils of low bearing capacity they are of