Research Institute of Highway

A Graded Evaluation Method for Construction Quality of Prefabricated Beam Bridges Based on Manifold Learning and Probability Distributions

This study aims to construct a graded evaluation method for the construction quality of Highway Prefabricated Beam Bridges, in order to support refined quality control beyond the traditional “qualified/unqualified” judgment. Existing evaluation methods have difficulty effectively...

Model Test on Thermo-Mechanical Behavior of Pure Friction Piles Under Cyclic Temperature

Frictional energy piles are a more desirable form of shallow geothermal energy utilization. A pure friction pile condition cannot be achieved in field tests. In this study, foam was placed beneath the model pile tip to weaken the end-bearing resistance. The effects of different c...

Mechanism Analysis and Prevention of Road Damage in High-Latitude Permafrost Regions

Abstract Frost heave and thaw settlement occur widely in northern China. Environmental change has increased their occurrence. High-latitude permafrost regions have high temperature sensitivity, experience freeze–thaw settlement, and exhibit unique rheological properties. Multiple...

Collaborative Optimization of Mechanical and Alkali-Reduction Performance of Ecological Low-Alkali Porous Concrete Based on Alkalinity Gradient Regulation

Abstract Porous concrete (PC) is widely used in slope ecological restoration due to its good permeability and plantability. However, the synergistic evolution mechanism between its mechanical properties and pore alkalinity has not been systematically elucidated, which has become...