建筑物和/或结构物的开挖 ...................................................................................................................... 494 第 70.51 节 - 明挖中的巨石开挖 .............................................................................................................. 498 第 70.52 节 - 隧道段​​中的巨石开挖 ............................................................................................................. 500 第 70.53 节 - 巨石移除津贴 ............................................................................................................................. 502 第 70.61 节 - 岩石开挖 ............................................................................................................................. 504 第 70.71 节 - 护堤石、石碴、碎石和斜坡路面 ............................................................................. 506 第 70.72 节 - 灌浆石路面 ............................................................................................................................. 508 第 70.81 节 - 清洁回填........................................................................................................................... 509 第 70.91 节 — — 挡板 ...................................................................................................................................... 511 第 71.11 节 — — 锯切路面 ................................................................................................................................ 514 第 71.21 节 — — 路面开挖 ............................................................................................................................. 518 第 71.31 节 — — 路面的临时修复 ............................................................................................................. 527 第 71.41 节 — — 路面的最终修复 ............................................................................................................. 529 第 72.11 节 — — 废弃下水道和水管的水力填充 ............................................................................................. 540 第 73.11 节 — — 附加砖砌体 ............................................................................................................................. 542 第 73.21 节 — — 附加混凝土................................................................................................................ 543 第 73.31 节 – 额外土方开挖，包括试验坑.............................................................................. 544 第 73.41 节 – 额外精选粒状回填料............................................................................................. 546 第 73.51 节 – 额外钢筋............................................................................................................. 548