北横通道沥青混合料短驳运输质量控制技术研究
作者:
作者单位:

上海公路桥梁(集团)有限公司,上海市 200433

作者简介:

左峰委(1986—), 男, 学士, 工程师, 从事道路工程施工技术与管理工作。

通讯作者:

中图分类号:

U416.217;U415.2;TU997

基金项目:

]?段文涛,程芬.高填路堤沉降有限元解法[J].路基工程,2009(5):105-106.[7]?吴俊,陈开圣,龙万学.高填方路基沉降变形有限元数值模拟[J].公路工程,2009,34(2):27-29;33.


Research on Quality Control Technology of Asphalt Mixture Short-haul Transportation in Beiheng Passage
Author:
Affiliation:

Shanghai Road and Bridge (Group) Co., Ltd., Shanghai 200433, China

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    摘要:

    针对上海北横通道隧道工程受3 m限高制约导致大型沥青运输车无法直达摊铺现场的难题,创新采用“场外长距离运输+隧道口短驳转运”模式。通过构建“短驳专班”垂直管理体系,明确各岗位职责并配置15辆专用短驳车(净高<2.8 m)及6名专职人员,实现拌合站调度、隧道转运与摊铺接收的全流程闭环管控。聚焦温度损失、离析风险及安全效率平衡3大难点,实施综合技术措施:优化拌合站出料温度SMA-13提升至180~190 ℃、AC-20C提至170~180 ℃;严格限定单次短驳时间≤30 min,且全程车速≤20 km/h;采用保温篷布覆盖料斗、隔离低温地面作业及构建分段定点测温+数据台账联动方案强化料温动态监控,并在摊铺前进行级配快速抽检完善离析控制。实施效果表明,短驳环节温控显著,SMA-13和AC-20C混合料短驳环节温降仅8 ℃和7 ℃,摊铺温度达168 ℃和160 ℃;SMA-13路面压实度平均为97.5%、AC-20C平均为97.2%、平整度σ值为1.2 mm、渗水系数为65 mL/min。各指标均优于规范,施工全程零安全事故。为城市受限空间沥青混合料高效短驳运输提供了可复用的实践范式。

    Abstract:

    In response to the problem of large asphalt transport vehicles being unable to reach the paving site directly due to the 3-meter height limit in the Shanghai Beiheng Passage Tunnel Project, the “long-distance transportation outside the site + short-haul transfer at the tunnel entrance” mode is innovatively adopted. By establishing a vertical management system of “short-haul special teams”, the responsibilities of each position are clarified, and 15 dedicated short-haul trucks (with a net height of less than 2.8 m) and 6 full-time staff members are allocated to achieve the full process closed-loop control of mixing station scheduling, tunnel transfer and paving reception. Focusing on the three major difficulties of temperature loss, segregation risk and safety efficiency balance, the comprehensive technical measures are implemented, such as optimizing the discharge temperature of the mixing station SMA-13 up to 180~190 ℃, AC-20C up to 170~180 ℃, strictly limiting the single short haul time to ≤ 30 min and the full vehicle speed to ≤ 20 km/h, adopting the insulation tarpaulin to cover the hopper, isolating the low-temperature ground operations, and constructing a segmented fixed-point temperature measurement + data ledger linkage scheme to strengthen the dynamic monitoring of material temperature, and conducting the rapid grading sampling before paving to improve segregation control. The implementation effect shows that the temperature control in the short haul section is significant. The temperature drop in the short haul section of SMA-13 and AC-20C mixtures is only 8 ℃ and 7 ℃ respectively, while the paving temperature reaches 168 ℃ and 160 ℃. The average compaction degree of the pavement is 97.5% for SMA-13, 97.2% for AC-20C, 1.2 mm for smoothness σ value, and 65 mL/min for permeability coefficient. All indicators are better than the standards, and there are no safety accidents throughout the entire construction process, which provides a reusable practical paradigm for efficient short-haul transportation of asphalt mixtures in urban confined spaces.

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左峰委.北横通道沥青混合料短驳运输质量控制技术研究[J].城市道桥与防洪,2026,(1):159-164.

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  • 收稿日期:2025-08-20
  • 最后修改日期:2025-09-17
  • 录用日期:2025-09-23
  • 在线发布日期: 2026-01-18
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