隧道-增强
用于隧道开挖的玻璃纤维加筋
玻璃纤维筋与箍筋 玻璃纤维筋与箍筋在隧道临时作业中被成功应用于替代混凝土结构中的传统增强筋材（D墙、挡土墙、桩体等诸如此类），例如：隧道贯通处，即所谓的“Soft eye”。
GFRP BAR CRG 增强元件由增强的聚酯树脂基体和单向玻璃纤维（E-Glass类型玻璃纤维）连续螺纹缠绕制成。 GFRP BAR CRG 具有以下优点： – 极高的抗拉强度 – 高抗弯强度 – 高剪切强度 – 极高的模量 – 显着增强摩擦效果（拉出效果） – 可切割性 – 高耐腐蚀性
GFRP CRG螺栓 马克菲尔GFRP CRG 玻璃纤维锚杆用于隧道工程，配备用于后张拉的钢质头，用于岩石锚固、土钉和地锚。它由增强的聚酯树脂基体和单向玻璃纤维（E-Glass类型玻璃纤维）连续螺纹缠绕制成。螺纹工艺不会影响玻璃纤维的完整性，同时显着增强摩擦效果（拉出）和整体抗拉强度能力。 钢质头的尺寸根据其安装的特定型材的机械性能而定。张紧系统快速有效，并经过校准以确保 GFR 剖面的完整性。 也可以通过 S355 钢套连接两个元件。 GFRP BOLT CRG 建议仅用于临时应用（参考 ACI440.1R）。
P.E.R. Ground System
The P.E.R. Ground System, designed for challenging excavations, combines a fiberglass-reinforced element with an expandable sheath, filled with pressurized mortar. This system improves pull-out resistance, efficiently controls mortar usage and reduces perforations by up to 45%, enhancing safety and saving resources. P.E.R. Ground is customizable in various combinations, allowing multiple functions to be performed simultaneously (e.g., P.E.R. Ground Drain for both reinforcement and drainage).
Success Stories
Built, not just drawn
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TERZO VALICO DEI GIOVI - GENOVA JUNCTION
The Terzo Valico dei Giovi is an ambitious project aimed at enhancing the Italian railway network, particularly the Genoa Node - Campasso Route. This initiative is crucial in improving both national and international connectivity, facilitating the transportation of goods and passengers. However, the excavation phase has encountered substantial geological complexities, resulting in significant challenges. The instability of the mass and the distress of the primary lining have necessitated the installation of struts to ensure stability at the excavation front and prevent delays in project progression. A primary focus is on mitigating risks for workers and expediting the primary lining phase to ensure that operations continue without impediment. These challenges not only impact production but also raise concerns regarding the safety and timeliness of ongoing operations.
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南钦防改扩建高速公路8标段水毁边坡加固治理工程
China
兰海高速广西南宁经钦州至防城港段改扩建工程(以下简称南钦防高速改扩建工程)8标段位于广西南部钦州和防城港市境内,路线大致呈南北走向展布,沿线地形地貌以剥蚀邱林地貌为主。沿线地形起伏较大,标高多在3-100m之间,相对高差10~80m。场地内覆盖层主要为第四系人工堆积层(Qme)、冲洪积层（Qal+pl）,志留系上统防城群（S3fn），志留系下统连滩群（S1ln）地层组成。厚度分布不均，约1-5m。丘陵间冲沟、注地比较发育,多呈条带状分布,多开垦为水田或早地。该项目于2019年10月交工验收通车，2020年3月至2020年9月钦防地区普降大雨,引起南钦防改扩建高速公路原第8标段(K0+082. 435-K17+600)沿线多处边坡发生滑塌破坏,对高速路的行车安全造成了威胁。 根据现场调查结果,南钦防高速改扩建工程第8标段应进行加固治理设计水毁边坡共计6处，边坡破坏情况主要以表层土体冲刷流失、局部滑塌、坡体鼓包以及顶部开裂变形为主。
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隧道-增强
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