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Year: 2017
挖掘日本坚硬岩石的巨型泥水盾构机
罗宾斯公司最近被Obayashi-Taisei-Kosei合资公司选中，为广岛高速公路5号线建造一个硬岩泥水隧道掘进机。该机直径13.67米，将是日本第一台在硬岩中挖掘的大直径泥水盾构机。该隧道将长1.4公里，并将用钢筋混凝土段衬砌。
这台机器的生产是日本吉姆技术公司（Jim Technology Corporation）和罗宾斯的合资企业。这台机器是罗宾斯设计的，由 JIMT提供刀盘驱动和关节密封。据估计，地质条件包括最大强度190兆帕的花岗岩，高水压高达13巴。泥水盾构机设计配备专用的20英寸压力补偿滚刀挖掘高强度岩石，该滚刀采用专利设计，可在高压下有效工作。
这条新的高速公路5号线隧道将直接连接广岛市城区和一个主要的国家公路网，并有望改善通往广岛机场的通道。由于地面上有居民区，为了避免噪音限制，必须在有限的时间段内进行作业。为了满足城市内控制的运输限制，也有交付掘进机的限制，需要将设备分为小的可运输重量和尺寸，然后在现场组装。预计设备将于2018年投产，2020年建成隧道。
大型泥水盾构机的发展，从其耐磨特性和坚固的部件到高压刀具，说明了泥水盾构机的通用性。该掘进机有望扩大泥水盾构机在高压硬岩地质中的适用范围。
免费网络研讨会：压力下的表现
土压力平衡盾构机（EPB）是目前隧道工程中应用最广泛的一种掘进机，但其在不同地质条件下的合理设计和使用却不常被讨论。粘土、砂、砾石、混合面条件和巨石都需要独特的盾构机设计和专家操作。无论这意味着利用耐磨电镀，重型螺旋输送机，或定制切割工具，今天的盾构机都面临挑战。在操作方面，使用正确的转速、适当的添加剂和详细的监测可以使沉降保持在最低限度，减少停机时间。
在这场免费的60分钟网络研讨会上，罗宾斯工程经理Brad Grothen和罗宾斯盾构首席工程师Shinichi Konda将探讨盾构机的工作原理、各种设计和现实应用。他们将从多种地质类型的现场数据中提取数据，对盾构机的设计和操作提出明智的建议。还将讨论“包括高刀具磨损和适当形成插头的能力”。
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2017国际施工与公共设备展览会
Event Name: ICUEE 2017
Dates: October 3-5, 2017
Location: Louisville, KY
Venue: Kentucky Exposition Center
The Robbins Company will be attending the International Construction & Utility Equipment Exposition (ICUEE) in Louisville, KY on October 3-5, 2017. Be sure to visit us at the Robbins booth to learn more about Robbins Small Boring Units operating world-wide.
Robbins Celebrates Tough Tunnels for Clean Energy
In April 2017, a ceremony was held to celebrate the commissioning of the Dariali Hydropower Project in the Republic of Georgia. Many attended the ceremony marking the first carbon-neutral hydropower project in the world, including Georgian Prime Minister, Giorgi Kvirikashvili. The power station, an independent power project (IPP) developed through Dariali Energy Ltd, was a joint venture involving three other firms: Georgian private companies Peri Ltd and Energy LLC, and state-owned Georgian Energy Development Fund (GEDF). The Dariali HPP gathers water from the Tergi River and directs it through the headrace tunnel to the power house located near the Russian—Georgian border. Each year, the site will generate 500 GWhs of carbon-neutral energy, with 70 percent of power production occurring during the country’s summer months.
Robbins also invested in the project by gaining equity through supplying tunneling equipment and services in consortium with contractor Peri. “Robbins understood the risk in the tunneling portion of the project and we were compensated for taking on part of the risk. Peri is a long-time customer, as we supplied a TBM to them 15 years ago for a small project in Georgia. It was great to be invited to invest and risk share on this project, and to work together again,” said Robbins President Lok Home. The 5 km (3 mi) long headrace tunnel for the power station was bored with the use of a 5.5 m (18 ft) diameter Robbins Main Beam TBM starting in February 2012.
Due to the remote and mountainous location of the jobsite 160 km (100 mi) from the capital Tbilisi, the machine was shipped in pieces to contractor Peri’s workshop, where they were refurbished under Robbins supervision and then delivered to the site to be assembled. Each piece was transported by truck down narrow, winding roads that eventually gave way to dirt paths. Assembly at the jobsite was difficult, as the project site at a 1,700 m (1.0 mi) altitude was blanketed in snow and components arrived in December. Bone-chilling temperatures often reached negative 15 degrees Celsius (5ºF), and 40 below with the wind chill factor. Once the machine had launched, it encountered difficult ground including slate, sandstone, limestone and malms with fault zones.
“The main challenges we faced were boring the tunnel at a 6 percent incline and having restricted access to service the machine. There were also two major landslides that delayed the project for over a year,” said Home. After the first landslide, the access tunnel, which had allowed mud and water to enter the power station, had to be relocated at a higher elevation and facing away from the river valley. When the machine was nearing the end of its bore, a second landslide blocked the exit portal for the machine as well as access to the main highway. Despite these challenges, tunneling crews persevered and the machine successfully holed through in October 2014.
Throughout the construction process, careful steps were taken to minimize the carbon footprint. Although the plant’s energy production is carbon emission free, construction of the plant was not. To offset these emissions, 7,000 seedlings are being planted all around the area in a reforestation effort. In years to come, the trees will absorb enough carbon dioxide to compensate for the emissions produced during the construction of the hydropower plant.
Overall, said Home, there is much to celebrate as the project has immense benefits: “Not only does it provide affordable electrical power for the country with essentially no pollution effects, but it also provided jobs during construction and will continue providing jobs during its operation and maintenance.”
Robbins TBM Takes on Eighth Bore for Galerie des Janots Project
A Robbins TBM, recently christened “Augustine”, is being commissioned to undertake its eighth bore after being launched by contractor Eiffage Civil Engineering on March 3. The TBM, which was extensively modernized and upgraded during the rebuild for the Galerie des Janots project in La Ciotat, France, has previously completed seven other successful projects across Europe and Hong Kong. This time, it will bore the Janots gallery to improve access to water in the communities east of the Aix-Marseille-Provence metropolis (Cassis, Roquefort-la-Bédoule, La Ciotat and Ceyreste). “It’s a single machine 3.5 meters (11.5 ft) in diameter, 250 metric tons (275 US tons), and 135 meters (443 ft) long, that will work 24 hours a day for almost 10 months during this operation,” says Marc Dhiersat, Project Director of Galerie des Janots for Eiffage.
Currently, the machine is ramping up as back-up decks are being installed. As of April 2017, the machine has bored more than 51 m (167 ft), mainly encountering limestone. “Limestone is a rock easy to dig, but one can be confronted with the phenomenon of karst,” explains Loïc Thévenot, Director of Underground Works for Eiffage. “For this purpose, the tunnel boring machine is equipped with a probe drill. If the karst is small, we will fill it with concrete. If it is large, we will erect a small parallel gallery.”
Galerie des Janots is one of the fourteen operations designed to save water and protect resources, which are being carried out by the Aix-Marseille-Provence metropolis, water agency Rhône Mediterranean Corsica, and the State Government. The future Janots gallery will replace existing pipelines currently located in the railway tunnel that have significant safety and vulnerability deficiencies with estimated water losses of 500,000 cubic meters (132 million gallons) per year. According to Danielle Milon, Mayor of Cassis, “This is an investment of 55 million euros (USD $59 million) with 11 million in aid from the water agency. This project required 10 years of reflection and work to improve water supply. And water is essential for the development of each municipality, and for citizens’ well-being.”
Augustine is boring a tunnel 2,750 m (1.7 mi) long, and will pass under Le Parc National des Calanques, with cover between 15 and 180 meters (50 to 600 ft), in order to replace the pipes that are currently being utilized for the water supply networks. “[The current pipes] have a capacity of transit limited to 330 liters (87 gallons) per second, which is largely insufficient in the summer period. The objective of the operation is to increase to 440 liters (116 gallons) per second,” says Dhiersat. Once the project is complete, networks can easily be maintained in comparison to the old pipes currently running beneath the railway.
滚刀参数表
罗宾斯设计和制造世界上技术最先进的滚刀，致力于高质量和持续改进。无论地质情况如何，无论机器类型或制造商，无论尺寸大小，罗宾斯都有满足您需求的切削解决方案。
泥水微型隧道系统参数表
微型隧道系统是小直径、无人驾驶隧道掘进工程的最佳选择。有了这些系统，隧道掘进机（MTBM）就可以从地表远程驱动和监控，并且能够按照行业标准在线和分级安装单通道设备。位于地面的操作室容纳操作站和MTBM及其泥浆泵的驱动电机控制装置。主顶升站和中间顶升站的液压动力装置独立于操作室。罗宾斯拥有一批现场服务和支持人员，根据需要对其进行培训和协助，以确保项目顺利完成。
小型硬岩掘进机参数表
小型硬岩掘进机适用于对线性和坡度要求严谨的长隧道公用设施（超过500英尺）。
可以有在双护盾（SBU-RHDS）或单护盾（SBU-RSS）两种机型。双护盾机型采用夹持器系统自行推进。单护盾机型必须与顶管系统或安装在尾盾中的主衬板一起使用。可以使用小型倒置螺旋钻或渣土车清除渣土。
小型驱动式掘进机参数表
线性和坡度至关重要，例如安装重力下水道和或者有限的旁通道，您想要一台可以连续导向的掘进机。对于更长距离的掘进 (长于 500 英寸/ 150 米) 的硬岩, 您不想被您的螺旋钻头或者易耗品例如刀具所限制。如果您需要在固定地质或者硬岩中掘进，管套直径在48英寸和78英寸(1.2 到 2.0 米)之间, 罗宾斯的是您理想的方案。罗宾斯提供定制的SBU-Ms来满足您项目的要求，让您能攻克更多开挖的挑战。
小型双护盾隧道掘进机参数表
小型双护盾隧道掘进机（SBU-DS）是理想的长隧道（长达3公里），没有中间通道的解决方案。SBU-DS直径为2.2至3.0米，是一种载人进入式小型硬岩隧道进机。