在路面养护工程中,修补后的坑槽再次破坏形成新坑槽的现象比较普遍,坑槽修补后再次形成坑槽的特点为:①多数始于边角,四角占的比例较大;②原坑槽处的油面较低,雨天积水;③多数是灰土先于油面破坏。坑槽修补后多呈矩形,这种形状虽然挖补时操作简便,但效果欠佳。因为修补坑槽夯实灰土基层时,矩形四角不易夯实,压实度不足,致使强度不匀。这是坑槽修补后再次破坏 In the pavement maintenance project, the repaired pit again destroys the formation of a new pit, which is characterized by the following features: (1) most of them start from the corners and occupy a larger proportion of corners; (2) the original The pit surface of the oil surface is low, rainy water; ③ most of the lime soil before the oil damage. After the pit repair more rectangular, although this shape digging easy, but the effect is not good. Because repair pit tamping lime soil grassroots, the rectangular corners are not easy to compaction, lack of compaction, resulting in uneven strength. This is a pit repair damaged again