Advances in Constructional Engineering

Subgrade compaction degree is one of the key factors affecting road service life, playing a significant role in the stability, durability, and compressive capacity of road structures. This paper studies the impact of subgrade compaction degree on road service life under different compaction conditions and explores the relationship between subgrade compaction degree and road quality. Appropriate subgrade compaction can effectively extend road service life and reduce pavement damage and maintenance frequency. In contrast, unqualified compaction may lead to issues such as pavement settlement and cracking, seriously affecting road stability and service performance. Through the analysis of road performance under different compaction degrees, this paper proposes suggestions for optimizing compaction control, aiming to provide a theoretical basis for improving road quality and extending service life.

Subgrade compaction degree; Road service life; Road quality; Stability; Durability