Youdaoplaceholder0 I. Material Optimization and standardized Construction (the foundation for Extending service life) ‌ Youdaoplaceholder0 basic processing strict control standards ‌ The ground compaction degree should be ≥93%, the slope error should be ≤0.7%, and the depth of water accumulation after rain should be ≤4mm. The drainage system adopts a “turtle-back” structure, with pre-buried pipes […]