Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Synchronous grouting material for high-water-pressure super-large shield tunnel and preparation method of synchronous grouting material
The invention discloses a synchronous grouting material for a high-water-pressure super-large shield tunnel and a preparation method of the synchronous grouting material, and belongs to the technical field of cement-based materials. The synchronous grouting material for the high-water-pressure super-large shield tunnel is composed of a component A and a component B. The component A is cement paste and comprises cement, bentonite, a high-activity mineral admixture, a viscosity modifier, a stabilizer and water, and the component B is a water glass solution. The volume ratio of the component A to the component B is (10-13): 1. The synchronous grouting material disclosed by the invention has the advantages of good water dispersion resistance, slow gelation time, fast setting time and high water corrosion resistance, the gelation time and the setting time of slurry are controllable and adjustable, the slurry is prevented from blocking a pipe, a gap between a pipe piece and a peripheral soil body is quickly and effectively filled, and the service life of the pipe piece is prolonged. Meanwhile, the slurry has good cohesiveness in a water-rich environment and is not prone to segregation and dispersion, and the performance requirements of high-water-pressure and ultra-large-diameter shield tunnels for synchronous grouting materials can be met.
本发明公开了一种高水压超大盾构隧道用同步注浆材料及其制备方法，属于水泥基材料技术领域。所述高水压超大盾构隧道用同步注浆材料由A、B两种组分构成，其中A组分为水泥浆，包括水泥、膨润土、高活性矿物外加剂、粘度调节剂、稳定剂和水，B组分为水玻璃溶液；所述A组分与B组分的体积比为10～13:1。本发明所述的同步注浆材料具有抗水分散性好、慢凝胶时间和快凝结时间以及高抗水溶蚀性能，浆液凝胶时间和凝结时间可控可调，避免浆液堵管且快速有效填充管片与外围土体之间的间隙，同时浆液在富水环境下具有良好的粘聚性不易离析分散，可满足高水压、超大直径盾构隧道对同步注浆材料的性能需求。
Synchronous grouting material for high-water-pressure super-large shield tunnel and preparation method of synchronous grouting material
The invention discloses a synchronous grouting material for a high-water-pressure super-large shield tunnel and a preparation method of the synchronous grouting material, and belongs to the technical field of cement-based materials. The synchronous grouting material for the high-water-pressure super-large shield tunnel is composed of a component A and a component B. The component A is cement paste and comprises cement, bentonite, a high-activity mineral admixture, a viscosity modifier, a stabilizer and water, and the component B is a water glass solution. The volume ratio of the component A to the component B is (10-13): 1. The synchronous grouting material disclosed by the invention has the advantages of good water dispersion resistance, slow gelation time, fast setting time and high water corrosion resistance, the gelation time and the setting time of slurry are controllable and adjustable, the slurry is prevented from blocking a pipe, a gap between a pipe piece and a peripheral soil body is quickly and effectively filled, and the service life of the pipe piece is prolonged. Meanwhile, the slurry has good cohesiveness in a water-rich environment and is not prone to segregation and dispersion, and the performance requirements of high-water-pressure and ultra-large-diameter shield tunnels for synchronous grouting materials can be met.
本发明公开了一种高水压超大盾构隧道用同步注浆材料及其制备方法，属于水泥基材料技术领域。所述高水压超大盾构隧道用同步注浆材料由A、B两种组分构成，其中A组分为水泥浆，包括水泥、膨润土、高活性矿物外加剂、粘度调节剂、稳定剂和水，B组分为水玻璃溶液；所述A组分与B组分的体积比为10～13:1。本发明所述的同步注浆材料具有抗水分散性好、慢凝胶时间和快凝结时间以及高抗水溶蚀性能，浆液凝胶时间和凝结时间可控可调，避免浆液堵管且快速有效填充管片与外围土体之间的间隙，同时浆液在富水环境下具有良好的粘聚性不易离析分散，可满足高水压、超大直径盾构隧道对同步注浆材料的性能需求。
Synchronous grouting material for high-water-pressure super-large shield tunnel and preparation method of synchronous grouting material
一种高水压超大盾构隧道用同步注浆材料及其制备方法
XIA ZHONGSHENG (Autor:in) / SHA JIANFANG (Autor:in) / GUO FEI (Autor:in) / LIU JIANZHONG (Autor:in)
04.06.2024
Patent
Elektronische Ressource
Chinesisch
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