All Outputs (189)

A Field Study on the Stability of Road Cut Slopes in Nepal (2024)
Presentation / Conference Contribution

The density of Nepal’s road network has more than tripled in the last three decades. This growth has been rapid, extensive and in places haphazard, occurring on both the local and strategic road networks, and has resulted in the widespread failure of... Read More about A Field Study on the Stability of Road Cut Slopes in Nepal.

Preliminary assessment of series of landslides and related damage by heavy rainfall in Himachal Pradesh, India, during July 2023 (2024)
Journal Article

Soil–Water Retention Curve Prediction for Compacted London Clay Subjected to Moisture Cycles (2023)
Journal Article

The evolution of the hydraulic properties of London Clay when compacted at a range of initial conditions (density and water content) was investigated. The soil–water retention curve (SWRC) is observed to change as the soil is subjected to cycles of w... Read More about Soil–Water Retention Curve Prediction for Compacted London Clay Subjected to Moisture Cycles.

A simple method to determine soil–water retention curves of compacted active clays (2023)
Journal Article

Determining the Soil Water Retention Curve (SWRC) of an active clay constitutes a challenge due to the significant, and sometimes irreversible, volume changes that occur during wetting and drying cycles. A novel yet simple method of experimentally de... Read More about A simple method to determine soil–water retention curves of compacted active clays.

An Evolutionary Neural Network Approach for Slopes Stability Assessment (2023)
Journal Article

A current big challenge for developed or developing countries is how to keep large-scale transportation infrastructure networks operational under all conditions. Network extensions and budgetary constraints for maintenance purposes are among the main... Read More about An Evolutionary Neural Network Approach for Slopes Stability Assessment.

The bounding effect of the water retention curve on the cyclic response of an unsaturated soil (2022)
Journal Article

The water retention properties of soils present in formation layers of roads and railways continuously vary due to repeated traffic loads and periodic rainfall events. This is important because the accumulated deformation and resilient modulus of suc... Read More about The bounding effect of the water retention curve on the cyclic response of an unsaturated soil.

An investigation of the combined effect of rainfall and road cut on landsliding (2022)
Journal Article

The reduction of soil suction and consequent loss of shear strength due to infiltration is known to trigger shallow landslides during periods of concentrated rainfall. In the mountainous terrain of Nepal, the risk of shallow rainfall-induced landslid... Read More about An investigation of the combined effect of rainfall and road cut on landsliding.

Reusing Fe water treatment residual as a soil amendment to improve physical function and flood resilience (2022)
Journal Article

Soil degradation is a global challenge that is intrinsically linked to climate change and food security. Soil degradation has many causes, but all degraded soils suffer from poor soil structure. The increasing global production of water treatment res... Read More about Reusing Fe water treatment residual as a soil amendment to improve physical function and flood resilience.

The mechanical properties of a high plasticity expansive clay (2022)
Journal Article

The mechanical properties of a high plasticity expansive clay from South Africa are reported. The experimental programme considered wetting after loading tests followed by one-dimensional consolidation and unloading of undisturbed and statically comp... Read More about The mechanical properties of a high plasticity expansive clay.

The Influence of Cyclic Loading Frequency on the Response of an Unsaturated Railway Formation Soil (2022)
Presentation / Conference Contribution

This paper presents the results of cyclic triaxial tests conducted on unsaturated soil samples recovered from the railway embankment of a South African coal line to investigate the influence of cyclic loading frequency on a formation layer material,... Read More about The Influence of Cyclic Loading Frequency on the Response of an Unsaturated Railway Formation Soil.

Application of suction monitoring for cyclic triaxial testing of compacted soils (2022)
Journal Article

The performance of compacted soils that are used for the construction of railway embankments are impacted by weather-driven suction and water content fluctuations. Hence, the accurate measurement of the water retention properties of soil during cycli... Read More about Application of suction monitoring for cyclic triaxial testing of compacted soils.

Coupling cyclic and water retention response of a clayey sand subjected to traffic and environmental cycles (2021)
Journal Article

Compacted soils used as formation layers of railways and roads continuously undergo water content and suction changes due to seasonal variations. Such variations, together with the impact of cyclic traffic-induced loads, can alter the hydro-mechanica... Read More about Coupling cyclic and water retention response of a clayey sand subjected to traffic and environmental cycles.

Predictive and prescriptive analytics in transportation geotechnics: Three case studies (2021)
Journal Article

Transportation infrastructure is of paramount importance for any country. The construction, management and maintenance of this infrastructure is a complex task that requires a significant amount of resources (e.g., human work equipment, materials, ma... Read More about Predictive and prescriptive analytics in transportation geotechnics: Three case studies.

Advanced analysis of satellite data reveals ground deformation precursors to the Brumadinho Tailings Dam collapse (2021)
Journal Article

Catastrophic failure of a tailings dam at an iron ore mine complex in Brumadinho, Brazil, on 25th January 2019 released 11.7 million m3 of tailings downstream. Although reportedly monitored using an array of geotechnical techniques, the collapse occu... Read More about Advanced analysis of satellite data reveals ground deformation precursors to the Brumadinho Tailings Dam collapse.

Weather-driven deterioration processes affecting the performance of embankment slopes (2020)
Journal Article

Deterioration of earthworks and the resultant implications for serviceability and increased occurrence of failures have a significant negative impact on transport networks both in the UK and internationally. There is evidence in the field that deteri... Read More about Weather-driven deterioration processes affecting the performance of embankment slopes.

Field monitoring of soil-moisture to understand the hydrological response of a road-cut slope (2020)
Book Chapter

Rainfall and slope-cutting for road construction are two key landslide causative factors in Nepal, but how they interact to cause failures is poorly understood. To improve understanding of the effects of cut slopes during rainfall, geotechnical inves... Read More about Field monitoring of soil-moisture to understand the hydrological response of a road-cut slope.

Experimental, numerical and field study investigating a heritage structure collapse after the 2015 Gorkha earthquake (2020)
Journal Article

This paper presents an investigation of the collapse of a 325-year-old multi-tiered heritage temple during the 2015 Gorkha earthquake in Kathmandu, Nepal. The research comprises a reconnaissance survey followed by a geotechnical investigation and num... Read More about Experimental, numerical and field study investigating a heritage structure collapse after the 2015 Gorkha earthquake.

Identifying archaeological evidence of past earthquakes in a contemporary disaster scenario: Case-studies of damage, resilience and risk reduction from the 2015 Gorkha Earthquake and past seismic events within the Kathmandu Valley UNESCO World Heritage Property (Nepal) (2019)
Journal Article

The 2015 Gorkha Earthquake was a humanitarian disaster but also a cultural catastrophe that damaged and destroyed historic monuments across Nepal, including those within the Kathmandu Valley UNESCO World Heritage Property. In the rush to rebuild, tra... Read More about Identifying archaeological evidence of past earthquakes in a contemporary disaster scenario: Case-studies of damage, resilience and risk reduction from the 2015 Gorkha Earthquake and past seismic events within the Kathmandu Valley UNESCO World Heritage Property (Nepal).

Reducing Disaster Risk to Life and Livelihoods by Evaluating the Seismic Safety of Kathmandu’s Historic Urban Infrastructure: enabling an interdisciplinary pilot (2019)
Journal Article

Kathmandu’s cities are exceptional architectural and artistic achievements, underpinned by centuries of seismic adaptation. They represent portals where heavens touch the earth and individuals commune with guiding deities; their tangible and intangib... Read More about Reducing Disaster Risk to Life and Livelihoods by Evaluating the Seismic Safety of Kathmandu’s Historic Urban Infrastructure: enabling an interdisciplinary pilot.

On the development of an ultra-high-capacity tensiometer capable of measuring water tensions to 7 MPa (2019)
Journal Article

Tensiometers are increasingly used in geotechnical engineering to monitor pore-water tension in the field and to study the hydro-mechanical behaviour of unsaturated soils in the laboratory. Early tensiometers exhibited a relatively small measuring ra... Read More about On the development of an ultra-high-capacity tensiometer capable of measuring water tensions to 7 MPa.