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Modelling of Twin Underground Caverns using 3DEC: A Case Study

Sreedevi A R, V. R. Sastry, N. Channabassamma

Abstract


India is poised to create large underground caverns, for storing crude oil and LPG. Presently there are three such facilities. The dependence of the country on Crude oil and petroleum products requires creating large underground caverns, from the strategic point of view. An attempt is made to present a case study of the stability of Twin Caverns driven adjacent to each other in Southern India. The host rock is granitic formation. A preliminary study was done to identify major geological anomalies. 3DEC software was used for the analysis of the stability of twin caverns and the barrier left between two caverns, incorporating major discontinuities. Study has revealed a considerable effect of mafic dyke on the stability of the caverns. Further details are given in the paper.

 

Key Words: Cavern, dyke intrusion, stability, numerical modeling.


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References


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