China's Loess to wide distribution, thickness, stratigraphic sequence complete, clear and known for its ancient soils in the world.
Especially in the west Wushaoling, the Taihang Mountains to the east, north of the Great Wall, south of the Qinling Mountains in the middle reaches of the Yellow River, the surface was almost entirely covered by loess, for the distribution area of 440,000 km2, the formation of the strata in a row, thickness, area Canton, the magnificent landscape in the Loess Plateau, the world rarely seen.
Loess often with different direction and structure of the original joint, in particular the joint development of vertical and has a certain continuity, porosity, loose structure, loose, low-density; between the loess grain structure so that the water easily loess collapse, falling more A collapsibility. Loess large section of tunnel construction, soil damage to the region, is usually more difficult to form a load-bearing arch, and vulnerable to landslides before the collapse of no omen; relatively shallow depth of the tunnel, easy to produce strong construction surface seam. In the area of the tunnel project, depending on the loess tunnel for the adverse geological problems.
High-speed railway is an important symbol of railway modernization, in the face of the West Zheng high-speed dedicated passenger railway tunnel loess brought about by technical problems and challenges, the Ministry of Railways building management, design, construction, and scientific research institutes, such as joint research, using theoretical analysis, Indoor test, field test, and other means of a comprehensive, in the Loess rock engineering properties, design, construction techniques and the many scientific issues has made significant progress, and won, "Mr West Line passenger large section of loess tunnel construction methods and monitoring technology," " Mr West Line passenger large section of loess tunnel reasonable support parameters and surface subsidence control technology "and" Mr West Line passenger large section of loess tunnel cracks in the surface control technology "and so on a number of research results. Loess large section of the tunnel construction to explore a range of research, construction technology and construction management for the West Zheng passenger yellow line to the success of building the tunnel has made a positive contribution to the enrichment and development of China's Loess tunnel construction technology, to promote our country and the world Tunnel construction technology.
The book summary of the engineering properties of loess wall, a wall of loess detailed classification to meet the 350km / h high-speed railway tunnel and the structure of the reasonableness of the requested size of the tunnel section, and in the form of parameters, load characteristics of the loess tunnel wall, Anchor role in the stability of the characteristics of the tunnel and control the key technology design. Summed up the loess cave-in of the tunnel, ahead of support, methods of excavation, support, waterproof, and the lining of the tunnel collapse loess of the basement to deal with security systems such as construction technology, large sections of loess through the tunnel under the existing structure of railways, highways, and other buildings Construction Deformation Control Technology. Loess revealed the characteristics of environmental pollution inside the cave, tunnel construction, tunnel construction loess formation mechanism of the surface cracks and cracks in the law, to prevent harmful propose the construction of the surface cracks control standards, and dealing with surface Cracking control technology. Introduced the loess tunnel construction technology and management experience, but also introduced the loess landslides dealing with the tunnel construction techniques. The book reflected the loess tunnel system design, construction and management of knowledge and experience in both theory and practice, rich in content and the amount of information, knowledge structure of the system.
China's Loess to wide distribution, thickness, stratigraphic sequence complete, clear and known for its ancient soils in the world.
Especially in the west Wushaoling, the Taihang Mountains to the east, north of the Great Wall, south of the Qinling Mountains in the middle reaches of the Yellow River, the surface was almost entirely covered by loess, for the distribution area of 440,000 km2, the formation of the strata in a row, thickness, area Canton, the magnificent landscape in the Loess Plateau, the world rarely seen.
Loess often with different direction and structure of the original joint, in particular the joint development of vertical and has a certain continuity, porosity, loose structure, loose, low-density; between the loess grain structure so that the water easily loess collapse, falling more A collapsibility. Loess large section of tunnel construction, soil damage to the region, is usually more difficult to form a load-bearing arch, and vulnerable to landslides before the collapse of no omen; relatively shallow depth of the tunnel, easy to produce strong construction surface seam. In the area of the tunnel project, depending on the loess tunnel for the adverse geological problems.
High-speed railway is an important symbol of railway modernization, in the face of the West Zheng high-speed dedicated passenger railway tunnel loess brought about by technical problems and challenges, the Ministry of Railways building management, design, construction, and scientific research institutes, such as joint research, using theoretical analysis, Indoor test, field test, and other means of a comprehensive, in the Loess rock engineering properties, design, construction techniques and the many scientific issues has made significant progress, and won, "Mr West Line passenger large section of loess tunnel construction methods and monitoring technology," " Mr West Line passenger large section of loess tunnel reasonable support parameters and surface subsidence control technology "and" Mr West Line passenger large section of loess tunnel cracks in the surface control technology "and so on a number of research results. Loess large section of the tunnel construction to explore a range of research, construction technology and construction management for the West Zheng passenger yellow line to the success of building the tunnel has made a positive contribution to the enrichment and development of China's Loess tunnel construction technology, to promote our country and the world Tunnel construction technology.
The book summary of the engineering properties of loess wall, a wall of loess detailed classification to meet the 350km / h high-speed railway tunnel and the structure of the reasonableness of the requested size of the tunnel section, and in the form of parameters, load characteristics of the loess tunnel wall, Anchor role in the stability of the characteristics of the tunnel and control the key technology design. Summed up the loess cave-in of the tunnel, ahead of support, methods of excavation, support, waterproof, and the lining of the tunnel collapse loess of the basement to deal with security systems such as construction technology, large sections of loess through the tunnel under the existing structure of railways, highways, and other buildings Construction Deformation Control Technology. Loess revealed the characteristics of environmental pollution inside the cave, tunnel construction, tunnel construction loess formation mechanism of the surface cracks and cracks in the law, to prevent harmful propose the construction of the surface cracks control standards, and dealing with surface Cracking control technology. Introduced the loess tunnel construction technology and management experience, but also introduced the loess landslides dealing with the tunnel construction techniques. The book reflected the loess tunnel system design, construction and management of knowledge and experience in both theory and practice, rich in content and the amount of information, knowledge structure of the system.
用翻译器翻译的,但希望对你有帮助~!
我国黄土以分布广、厚度大、地层层序完整、古土壤清楚而著称于世。
尤其是在西起乌鞘岭,东到太行山,北起长城,南抵秦岭的黄河中游地区,地表几乎完全为黄土所覆盖,连续分布面积达44万km2,形成了地层连续、厚度大、面积广、蔚为壮观的黄土高原地貌景观,为世界所罕见。
黄土常具有不同方向的原生与构造节理,特别是垂直节理发育,并具有一定的延续性、多孔性、结构疏松、松散、密度低;黄土粒间结构使黄土遇水易崩解、剥落,多具湿陷性。大断面黄土隧道施工时,土体破坏区域大,较难形成通常的承载拱,极易坍塌且坍方前无明显先兆;隧道埋深较浅时,极易产生施工地表烈缝。在隧道工程领域,视黄土为隧道不良地质问题之一。
高速铁路是铁路现代化的重要标志,面对郑西客专高速铁路黄土隧道带来的技术问题与挑战,铁道部组织建设管理、设计、施工、和科研院所等部门联合攻关,采用理论分析、室内试验、现场试验等综合手段,在黄土围岩工程特性、设计理念、施工技术和众多科学问题方面取得了重大进步,获得了“郑西客运专线大断面黄土隧道施工方法与监控技术”、“郑西客运专线大断面黄土隧道合理支护参数及地表沉降控制技术”和“郑西客运专线大断面黄土隧道地表裂缝控技术”等一批研究成果。大断面黄土隧道建设中探索出一系列研究成果、施工技术和建设管理方法,为郑西客运专线黄土隧道的成功建设作出了积极贡献,丰富和发展了我国黄土隧道建设技术,推动了我国乃至世界隧道建设技术的进步。
本书归纳总结了黄土围岩工程特性,提出了黄土围岩的细化分级,满足350km/h高速铁路和隧道结构合理性要求的隧道断面大小、形式和参数,黄土隧道围岩荷载特征、锚杆作用特点和隧道稳定性控制方法等关键设计技术。总结了黄土隧道洞口、超前支护、开挖方法、支护、防水、衬砌和湿陷性黄土隧道基底处理等系统安全施工技术,大断面黄土隧道下穿构既有铁路、公路等建筑物的施工变形控制技术。揭示了黄土隧道施工洞内环境污染特点,黄土隧道施工地表裂缝的形成机理与裂缝规律,提出了防止有害地表裂缝的施工控制标准、地表裂缝控制与处理技术等。介绍了黄土隧道建设管理技术与经验,也介绍了黄土隧道施工坍方处理技术方法。该书系统反映了黄土隧道设计、施工和管理的认识与经验,理论与实践并重,内容丰富、信息量大、知识结构系统
有点怪吓人的。
没钱的????
这么多!!!!