Group 1 - The G351 line Jiajin Mountain Tunnel will soon open, reducing travel time from 1 hour to 10 minutes [1] - Sichuan aims to complete an annual construction investment of 260 billion yuan, with 179.95 billion yuan invested in infrastructure from January to August [1] - The province ranks second in fixed asset investment growth among major economic provinces in China [1] Group 2 - Highway construction is the main focus of Sichuan's transportation investment, with 26.406 billion yuan invested in the Xixiang Highway, accounting for 45% of the total investment of 58.738 billion yuan [1] - From January to August, Sichuan completed 89.25 billion yuan in highway construction investments, with 40 kilometers of new highways built [1] - Sichuan is the third province in China to exceed 10,000 kilometers of highway mileage, with total highway mileage expected to surpass 11,000 kilometers this year [1] Group 3 - In addition to highways, national and provincial trunk roads and inland waterway projects are also advancing, with 41.7 billion yuan invested in national and provincial trunk roads from January to August [2] - A total of 36 new projects have started, including 685 kilometers of new or upgraded national and provincial trunk roads, achieving 63.8% of the annual target [2] - Inland waterway investment reached 3.91 billion yuan, a year-on-year increase of 6.9%, with nine projects, including the Minjiang Longxikou hydropower hub, accelerating construction [2]

6月12日，中国水运建设行业协会在上海组织召开了由中交三航局牵头完成的9项科技成果鉴定会。经综合评价，中交三航局1项科技成果达到国际 领先水平，6项科技成果达到国际先进水平，其余2项分别达到国内领先和国内先进水平。 专家组听取了各项目汇报，审阅了项目技术研究报告、科技查新报告、经济效益证明、工程应用证明等资料，并进行了认真讨论，一致认为四公 司牵头完成的《国产旋转式打桩船沉桩施工关键技术》成果达到国际领先水平。 该成果结合工程实际，通过理论分析、数值模拟、工艺研究、装备研发、现场试验等方法，研发了国产旋转式打桩船沉桩施工关键技术。 该项目取得4项创新成果，一是研发了旋转式打桩船沉桩工艺，综合采用旋转式桩架系统、角度自适应调节抱桩器、定位桩定位系统、全船数智化 系统，增强了打桩船对环境的适应性，提高了沉桩效率；二是研发了"旋转式+滑轨"自适应打桩船桩架系统，实现了桩架便捷提升和变幅，提高了 吊桩、竖桩、就位工效；三是研制了角度自适应调节抱桩器，实现了波浪作用下桩身姿态的实时补偿，保证了沉桩倾斜度；四是研发了打桩船分 段式压载水舱与高速响应阀协同控制系统，实现了沉桩过程中船舶的动态平衡，提高了船舶的稳定性。 该成 ...