Question

Write about the different in test in the presence of soil exploration

Answer 1

Answer:

Planning of Subsurface Investigation:

To obtain the most useful information at minimum cost and effort, proper planning of subsurface investigation programme is essential.

For planning of the programme, the soil engineer-in-charge of the programme should include the following steps:

(i) Completely familiar with the kind of information required from the investigation.

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(ii) Knowledge of type, size and importance of the project.

(iii) Preparation of layout plan of the project,

(iv) Preparation of borehole layout plan which includes number and spacing of boreholes, depth and frequency of sampling.

(v) Selection of proper drilling and sampling equipment.

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(vi) Selection of personnel to supervise the field investigation.

(vii) Marking on the layout plan any additional types of soil investigation.

(viii)Preparation of guidelines for laboratory testing of collected samples.

Stage of Subsoil Investigation:

Different stages of sub-soil investigation of a major civil Engineering project are

Answer 2

$\huge\bold\red{HOLA!!}$

Disturbed samples are tested in the laboratory to determine the physical properties of soil. ... Depth of boring is at least 1.5 to 2B, where B is the width of foundation, undisturbed samples are tested in the laboratory to determine the engineering properties like shear strength, permeability, compressibility etc.