Ground-Supported Working Platforms for Tracked Plants and Mobile Cranes - Interaction Effects Investigated by Model Tests, Field Measurements and Numerical Simulations-Video

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The presentation examines failures and overturning of construction plants caused by inadequate working platforms, poor coordination, and the lack of consistent design standards. The research investigates interactions between cranes and other machinery, platform layers, and underlying soils, including the effects of repeated loading and time-dependent settlement. Researchers combined full-scale field tests, laboratory model tests, and numerical simulations. Measurements showed that actual track pressures can differ substantially from simplified assumptions, creating stress concentrations, differential settlement, and increased overturning risk. A review of design methods found widely varying estimates of required platform thickness. Reinforcement can significantly improve bearing resistance and reduce settlement, though its effectiveness depends on layer arrangement and strength. The team is developing validated design approaches and working with industry partners on a German recommendation to help engineers design platforms that meet equipment-specific requirements.

Keywords

construction platforms

overturning risk

track pressure

soil settlement

platform design