Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance sprayed concrete for subsea tunnel and construction application method of high-performance sprayed concrete
The invention relates to the technical field of tunnel construction, and particularly provides high-performance sprayed concrete for subsea tunnels and a construction application method thereof.The concrete is prepared from, by weight, 450-550 parts of slag powder, 0.5-1.0 part of fluosilicate, 4.5-5.5 parts of a water reducing agent, 0.05-0.1 part of an alkali swelling thickener, 20-50 parts of an exciting agent, 1500-1700 parts of filler and 150-220 parts of water; the exciting agent is water glass containing meta-aluminate. The sprayed concrete has the advantages of being fast in setting and hardening, high in supporting strength, low in spraying rebound rate, high in hydration product corrosion resistance and good in durability, the main raw materials come from industrial solid waste, and the sprayed concrete is environmentally friendly, so that deformation and sedimentation of tunnel surrounding rock are effectively controlled, and meanwhile the construction cost is reduced. And the method is of great significance to green low-carbon construction and long-term service of the subsea tunnel.
本申请涉及隧道建造技术领域，具体提供一种海底隧道用高性能喷射混凝土及其施工应用方法，混凝土原料按重量份包括以下组分：矿渣粉450‑550份，氟硅酸盐0.5‑1.0份，减水剂4.5‑5.5份，碱溶胀增稠剂0.05‑0.1份，激发剂20‑50份，填料1500‑1700份，水150‑220份；所述激发剂为含偏铝酸盐的水玻璃。本申请的喷射混凝土具有凝结硬化快、支护强度高、喷射回弹率低，水化产物耐蚀性高、耐久性好的优点，而且主要原材料来自于工业固废、绿色环保等优点，因此，在有效控制隧道围岩的变形沉降的同时，对实现海底隧道的绿色低碳建造与长效服役具有重要意义。
High-performance sprayed concrete for subsea tunnel and construction application method of high-performance sprayed concrete
The invention relates to the technical field of tunnel construction, and particularly provides high-performance sprayed concrete for subsea tunnels and a construction application method thereof.The concrete is prepared from, by weight, 450-550 parts of slag powder, 0.5-1.0 part of fluosilicate, 4.5-5.5 parts of a water reducing agent, 0.05-0.1 part of an alkali swelling thickener, 20-50 parts of an exciting agent, 1500-1700 parts of filler and 150-220 parts of water; the exciting agent is water glass containing meta-aluminate. The sprayed concrete has the advantages of being fast in setting and hardening, high in supporting strength, low in spraying rebound rate, high in hydration product corrosion resistance and good in durability, the main raw materials come from industrial solid waste, and the sprayed concrete is environmentally friendly, so that deformation and sedimentation of tunnel surrounding rock are effectively controlled, and meanwhile the construction cost is reduced. And the method is of great significance to green low-carbon construction and long-term service of the subsea tunnel.
本申请涉及隧道建造技术领域，具体提供一种海底隧道用高性能喷射混凝土及其施工应用方法，混凝土原料按重量份包括以下组分：矿渣粉450‑550份，氟硅酸盐0.5‑1.0份，减水剂4.5‑5.5份，碱溶胀增稠剂0.05‑0.1份，激发剂20‑50份，填料1500‑1700份，水150‑220份；所述激发剂为含偏铝酸盐的水玻璃。本申请的喷射混凝土具有凝结硬化快、支护强度高、喷射回弹率低，水化产物耐蚀性高、耐久性好的优点，而且主要原材料来自于工业固废、绿色环保等优点，因此，在有效控制隧道围岩的变形沉降的同时，对实现海底隧道的绿色低碳建造与长效服役具有重要意义。
High-performance sprayed concrete for subsea tunnel and construction application method of high-performance sprayed concrete
一种海底隧道用高性能喷射混凝土及其施工应用方法
SUN WENHAO (Autor:in) / ZHAO SHUANG (Autor:in) / WANG WEI (Autor:in) / ZENG LUPING (Autor:in) / GAO NANXIAO (Autor:in) / QIAO MIN (Autor:in) / HONG JINXIANG (Autor:in) / MENG ZHENYA (Autor:in) / HOU XULIN (Autor:in)
29.03.2024
Patent
Elektronische Ressource
Chinesisch
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