Construction method of shield tunnel

• Main Authors: YU HONGBIAO, BAO KUN, CAO WEIYANG, HUANG SONG, WU BIN, SONG SIWEN
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2024
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; LIME, MAGNESIA; METALLURGY; MINING; REFRACTORIES; SHAFTS; SLAG; TREATMENT OF NATURAL STONE; TUNNELS

The invention relates to the technical field of underground space engineering, and particularly discloses a construction method of a shield tunnel. On the basis of related technologies, the premixed mortar and the modified acrylic fibers are added into the grouting material, a new grouting material is obtained, the modified acrylic fibers and the basalt fibers introduced into the premixed mortar synergistically play a reinforcing role, the combination effect between bentonite particles and set cement can be enhanced, and the grouting material has the advantages that the bonding effect between the bentonite particles and the set cement is improved; the negative influence of bentonite particles on the strength is overcome to a certain extent, so that the grouting material has better strength performance after being cured, and the construction safety during shield tunnel construction in a goaf is fully guaranteed. 本申请涉及地下空间工程技术领域，具体公开了一种盾构隧道的施工方法。本申请在相关技术的基础上向注浆料中添加了预拌砂浆和改性腈纶纤维，得到了新的注浆料，改性腈纶纤维除了与预拌砂浆引入的玄武岩纤维协同发挥