LECTURE NOTES ON GROUND IMPROVEMENT TECHNIQUES

LECTURE NOTES . ON. GROUND IMPROVEMENT TECHNIQUES . (A60127). III B. Tech - II Semester (JNTUH-R15). Prepared By Dr. Kavita Singh Associate Professor Ms. J. Hymavathi Assistant Professor, Department of Civil Engineering INSTITUTE OF AERONAUTICAL ENGINEERING. (Autonomous). DUNDIGAL, HYDERABAD - 500 043. UNIT-1. Introduction to Engineering GROUND Modification. The Need for Engineered GROUND IMPROVEMENT : As more and more land becomes subject to urban or industrial development, good construction sites and borrow areas are difficult to find and the soil IMPROVEMENT alternatives becomes the best option, technically and economically. Where a project encounters difficult foundation conditions, possible alternative solutions are: 1. Avoid the particular site. Relocate a planned highway or development site. 2. Design the planned structure accordingly. Some of the many possible approaches are to: - Use a raft foundation supported by piles, - Design a very stiff structure which is not damaged by settlement, - Or choose a very flexible construction which accommodates differential movement or allows for compensation.

Determining Water Content in Soil – Calcium Carbide Method This test is done to determine the water content in soil by calcium carbide method as per IS: 2720 (Part II) – 1973. It is a method for rapid determination of water content from the gas pressure developed by the reaction of calcium carbide with the free water of the soil.

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