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工程聚焦 | 院士专家“慧”聚金陵,为南京上元门过江通道建设“把脉开方”!

  • 2026-03-30 19:47:23
工程聚焦 | 院士专家“慧”聚金陵,为南京上元门过江通道建设“把脉开方”!

3月7日,中国工程院院士杜彦良何川及多位行业专家齐聚南京,参加中铁十六局南京上元门过江通道站前3标工程重难点技术攻坚专家咨询会,围绕长距离大埋深高水压盾构掘进、地中对接、智能化建造等难题开展高层次技术研讨,为这一串联南京三大枢纽的“咽喉工程”高质量建设注入智慧动能。

专家咨询会现场

现场调研+深度研讨,精准聚焦核心瓶颈

上午8时,与会院士专家前往项目施工现场,详细了解地质条件、施工筹划及当前进展。

现场调研

在随后召开的咨询会上,院士专家聚焦工程实施与科研创新两大维度开展深入研讨。工程层面上,围绕盾构机在超高水压下的密封耐久性、超4公里泥岩段刀盘泥饼防治、高石英含量地层刀具减磨与高压换刀技术、长距离泥浆环流系统优化、地中对接精度控制与加固止水等关键议题展开深入交流。科研层面上,就盾构智能化配置升级、高粘性岩层渣土脱水固化及资源化利用等前沿方向进行前瞻性探讨。

江苏省铁路集团有限公司副总经理史良洪、南京铁路枢纽工程建设指挥部指挥长俞峰对专家团队的智力支持致以诚挚感谢,强调上元门过江通道对于完善南京铁路枢纽、推动长三角互联互通的重要意义,要求参建团队落实好国铁集团关于系统研究下穿长江盾构隧道智能施工技术的指示精神,全力攻关核心施工难题,形成一套适配下穿长江盾构隧道施工的成套施工工艺和机械装备体系。

咨询研讨

中铁十六局总经理、党委副书记谭发刚在致辞中表示,中铁十六局作为江苏铁路最早的施工主力之一,深度参与南京铁路枢纽建设,双方并肩攻坚,结下了深厚的战斗情谊,形成了“投资统筹+施工攻坚+技术协同”的黄金默契。此次承建南京上元门过江通道这一关键工程,深感使命光荣、责任千钧。中铁十六局团队将坚决贯彻专家智慧,以铁军担当将该项目打造成经得起历史检验的精品工程。

北京交通大学土木建筑工程学院教授、北京盾构工程协会理事长袁大军,北京盾构工程协会专家组长、中国铁建派驻外部董事沙明元,中国铁建副总工程师程永亮,上海汇谷岩土工程技术有限公司总工程师罗建军等专家;南京铁路枢纽工程建设指挥部总调度长范剑雄、上元门段落指挥长冯传宝;中铁十六局副总经理高宪民,副总经理、总工程师杨晋文等参加会议。

“长、大、深、险、准”,解码极限挑战

作为国内首条串联南京北站、南京站、南京南站三大枢纽的铁路过江通道,南京上元门过江通道北起江北新区南京北站,南接主城南京站,正线全长约20.4公里,采用单洞双线高速铁路隧道设计,是南京市第一条高速铁路过江隧道。

其中,集团轨道公司承建的3标段正线长7.47公里,盾构隧道长6.93公里,是整个工程的核心与难点。盾构施工将面临将应对92米大埋深、高水压下一次性独头掘进6.9公里的施工考验,同时要实现江南江北盾构机的精准地中对接,并在狭小空间内完成洞内拆解,精度要求高、安全防控难。

工程线路示意图

该工程兼具“长、大、深、险、准”五大突出特点:

长——单机独头掘进距离长,对设备耐久性及施工控制提出极高要求;

大——工程规模大、协调难度大,盾构开挖断面大;

深——隧道埋深大,施工风险随深度陡增;

险——盾构下穿风险较大,长距离、大直径盾构地中对接施工,风险控制难度高;

准——两台盾构相向而行,径向错位须严控于毫米级,精度要求远超常规。

项目建设现场

工程施工将面临“五大拦路虎”:长距离大埋深盾构密封性保障、大直径岩层掘进管片上浮控制、高水压带压换刀安全技术、盾构地中对接成套工艺、刀盘结泥饼防治措施。每一项都是制约工期的“卡脖子”环节,也是本次专家咨询的核心议题。

智能化+精细化,专家献策指明攻关方向

在综合现场调研与研讨成果后,专家组对项目团队前期开展的科研策划和应对措施给予肯定,并就关键技术路径提出建设性意见。针对泥岩段结泥饼风险,专家建议在确保轨迹线的情况下,在泥岩层适当减少刀具数量,通过在掘进中试验优化刮刀与滚刀刀差配合;对于刀具减磨,在砂岩层优化机械配置,增加刀盘转速,小贯入度掘进。

杜彦良院士讲话

智能化建造成为研讨高频词。专家组指出,应充分利用数字化孪生平台,将超前地质预报、管片浮动监测、刀具磨损感知等“五官一脑”系统深度嵌入施工全流程,实现从“经验驱动”向“数据驱动”转变。同时,针对高粘性渣土处置,倡导绿色低碳理念,推进泥浆筛分效率提升与脱水固结资源化利用,打造“无废隧道”示范。

何川院士讲话

此次专家咨询会的成功召开,标志着项目技术攻坚进入新阶段。建设团队将依托高端智力资源,持续深化大盾构核心技术攻关,确保“一次成优、数智创新、本质安全”,全力将上元门过江通道打造成为经得起历史检验的精品工程、创新工程。

会议合影

据悉,南京上元门过江通道是国家发改委《长江干线过江通道布局规划》中江苏省44座境内过江通道之一,也是南京首条高速铁路过江隧道,更是畅通长江南北交通、织密“米”字形高铁网络的关键枢纽工程。项目建成后,将破解南京铁路过江瓶颈,形成南京站、南京南站、南京北站“三大客站”联动格局,对于提升南京综合交通枢纽地位、加快建设“轨道上的江苏”、促进长三角一体化高质量发展具有重大战略意义。

本文转载自中铁十六局

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  1. CONNECT:[ UseTime:0.000400s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000580s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.014120s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001577s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000565s ]
  6. SELECT * FROM `set` [ RunTime:0.003042s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000662s ]
  8. SELECT * FROM `article` WHERE `id` = 501905 LIMIT 1 [ RunTime:0.002303s ]
  9. UPDATE `article` SET `lasttime` = 1775866002 WHERE `id` = 501905 [ RunTime:0.006572s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.002463s ]
  11. SELECT * FROM `article` WHERE `id` < 501905 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.003831s ]
  12. SELECT * FROM `article` WHERE `id` > 501905 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000536s ]
  13. SELECT * FROM `article` WHERE `id` < 501905 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003629s ]
  14. SELECT * FROM `article` WHERE `id` < 501905 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001275s ]
  15. SELECT * FROM `article` WHERE `id` < 501905 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.005084s ]
0.128509s