Geological and engineering characteristics of expansive soils and rocks in northern Oman

Amer A. Al-Rawas*, Ingeborg Guba, A. McGown

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

37 اقتباسات (Scopus)


The geology and former climate of northern Oman favoured the formation of smectite clay minerals in certain materials which are implicated in ground heave problems. Investigations have shown that the smectite content of these expansive materials was developed in Oligocene, Miocene and Pliocene times. No evidence of a significant content of smectite was found in pre Eocene strata or in Quarternary strata, except for Desert Fill. It is shown that the main types of expansive materials in northern Oman are bentonitic mudstones, marls and silty mudstones, argillaceous dolomitic limestone, altered conglomerates and the desert fill derived from these. These swelling materials exist as impersistent bands within the bedrock Tertiary conglomerates and limestones. A geotechnical testing program was carried out on undisturbed samples from Sultan Qaboos University staff housing areas where building damage had occurred, to evaluate mineralogical composition, cation content and swelling characteristics. The test results characterized these soils/rocks as highly expansive type with Na-smectite as the dominant clay mineral.

اللغة الأصليةEnglish
الصفحات (من إلى)267-281
عدد الصفحات15
دوريةEngineering Geology
مستوى الصوت50
رقم الإصدار3-4
المعرِّفات الرقمية للأشياء
حالة النشرPublished - أكتوبر 1998

ASJC Scopus subject areas

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