This paper presents, an in situ monitoring of the behaviour a partially saturated soil, subjected to unloading stress path resulting from excavations. The study case is 30m deep excavation for construction metro station, aim monitor evolution displacements and pore pressure during after different stages excavation. monitored soil expansive marl. first results have been collected analysed. Never...

We exploit the techniques developed in [Le] to study N -expansive homeomorphisms on surfaces. We prove that when f is a 2-expansive homeomorphism defined on a compact boundaryless surface M with nonwandering set Ω(f) being the whole of M then f is expansive. This condition on the nonwandering set cannot be relaxed: we present an example of a 2-expansive homeomorphisms on a surface with genus 2 ...

Abstract Expansive soils are referred to as swelling a result of changes or modifications in the water content soil. This study aims determine how addition fly ash affects value expansive soil's free compressive strength well curing period that has been stabilized with ash. Variations were made by 5%, 10%, 20%, and 25% times 0 days, 7 14 28 days see adding affected Free Compressive Strength Val...

In Bhopal, the widespread occurrences of cracking due to alternate swelling and shrinking in lightly loaded structures provided with traditional foundation like the strip footings in are covered by swelling soil. It is likely that foundation movements, due to shrinkage and swelling of expansive soil as a result of moisture content changes are responsible for more damage to building than any oth...

This laboratory study examines the potential use of an anionic polyacrylamide (PAM)-based material as environmentally sustainable additive for stabilization expansive soil from South Australia. The experimental program consisted consistency limits, sediment volume, compaction and oedometer cyclic swell–shrink tests, performed using distilled water four different PAM-to-water solutions P D = 0.1...

In this study, the chemical stabilization of moderately to highly plastic expansive soil using calcium chloride with added cement is introduced as an effective alternative conventional approaches a single additive such lime, cement, or by-product industrial processes. Using only may lead its leaching dissolution over time, leaving collapsing skeleton weak bonds. The effect produced by additives...