The evaluation of lateral swelling pressure of expansive
Research gap analysis derived from 3 agriculture papers in our local library.
The gap
The evaluation of lateral swelling pressure of expansive soils is crucial for the design of retaining structures, but the underlying mechanisms are not well understood.
Evidence profile
Sourced from the stated research gap and stated challenges of the source papers, classified as general, spanning 3 journals.
Research trend
Established — well-defined area with open sub-problems.
Supporting evidence — 4 representative gaps
- A Generalized Multi-Segment Sliding Wedge Model for Active Earth Pressure Under Narrow Backfill Width (2026) · Buildings · doi
The classical earth pressure theories are not applicable when the backfill width behind retaining walls is limited. There is a need for an improved theoretical method for determining the active earth pressure under narrow backfill width. The existing methods do not account for the effects of parameters such as the backfill width-to-height ratio and the internal friction angle of the soil on the active earth pressure.
generalstated research gapKeywords: classical earth pressure theories applicable backfill width behind - A Generalized Multi-Segment Sliding Wedge Model for Active Earth Pressure Under Narrow Backfill Width (2026) · Buildings · doi
The backfill width behind retaining walls is often limited, leading to inaccuracies in the estimation of the active earth pressure. The soil properties, such as the internal friction angle and the dilatancy angle, affect the active earth pressure. The development of a theoretical model that accounts for the effects of these parameters is a challenge.
generalstated challengesKeywords: backfill width behind retaining walls often limited leading - Evolution of lateral earth pressure and pore structure of expansive soil during swelling and consolidation (2026) · Acta Geotechnica · doi
The evaluation of lateral swelling pressure of expansive soils is crucial for the design of retaining structures, but the underlying mechanisms are not well understood.
generalstated research gapevidence 5/5Keywords: evaluation lateral swelling pressure expansive soils crucial design - Failure Mechanism of Soil Excavations Under Unsaturated Steady-State Flow Conditions Based on Slip-Line Method (2026) · Geotechnical and Geological Engineering · doi
Traditional methods for estimating active earth pressures often rely on predefined failure mechanisms, overlooking key factors. The influence of backfill properties, wall geometry, and boundary fluxes under unsaturated conditions is crucial, but not well addressed.
generalstated research gapevidence 5/5Keywords: traditional methods estimating active earth pressures often rely
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