Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tunnel sprayed concrete and tunnel concrete spraying construction method
The invention discloses tunnel sprayed concrete and a tunnel concrete spraying construction method. Each cubic meter of the tunnel sprayed concrete comprises 360 to 410 kg of cement, 1558 to 1602 kg of a gravel mixture, 43.8 to 48 kg of polypropylene fiber, 5.4 to 6.2 kg of a water reducing agent, 2.6 to 3.06 kg of a tackifier, 75 to 121 kg of silica fume, 28.6 to 29.15 kg of a liquid accelerator and 188 kg of magnetized water, and the water-binder ratio of the tunnel sprayed concrete is 0.43 to 0.53. The invention solves the problems of slow final setting time, poor cohesive force of concrete and surrounding rock, large resilience and slow increase of later strength in the existing tunnel sprayed concrete.
本发明公开了一种隧道喷射混凝土及隧道混凝土喷射施工方法，该混凝土包括：每立方米隧道喷射混凝土包括：360～410kg的水泥、1558～1602kg的砂石混合料、43.8～48kg的聚丙烯纤维、5.4～6.2kg的减水剂、2.6～3.06kg的增粘剂、75～121kg的硅灰、28.6～29.15kg的液体速凝剂和188kg的磁化水，所述隧道喷射混凝土的水胶比0.43～0.53。本发明解决了现有隧道喷射混凝土，存在终凝时间较慢、混凝土与围岩粘结力较差，回弹量大，后期强度增加慢的问题。
Tunnel sprayed concrete and tunnel concrete spraying construction method
The invention discloses tunnel sprayed concrete and a tunnel concrete spraying construction method. Each cubic meter of the tunnel sprayed concrete comprises 360 to 410 kg of cement, 1558 to 1602 kg of a gravel mixture, 43.8 to 48 kg of polypropylene fiber, 5.4 to 6.2 kg of a water reducing agent, 2.6 to 3.06 kg of a tackifier, 75 to 121 kg of silica fume, 28.6 to 29.15 kg of a liquid accelerator and 188 kg of magnetized water, and the water-binder ratio of the tunnel sprayed concrete is 0.43 to 0.53. The invention solves the problems of slow final setting time, poor cohesive force of concrete and surrounding rock, large resilience and slow increase of later strength in the existing tunnel sprayed concrete.
本发明公开了一种隧道喷射混凝土及隧道混凝土喷射施工方法，该混凝土包括：每立方米隧道喷射混凝土包括：360～410kg的水泥、1558～1602kg的砂石混合料、43.8～48kg的聚丙烯纤维、5.4～6.2kg的减水剂、2.6～3.06kg的增粘剂、75～121kg的硅灰、28.6～29.15kg的液体速凝剂和188kg的磁化水，所述隧道喷射混凝土的水胶比0.43～0.53。本发明解决了现有隧道喷射混凝土，存在终凝时间较慢、混凝土与围岩粘结力较差，回弹量大，后期强度增加慢的问题。
Tunnel sprayed concrete and tunnel concrete spraying construction method
隧道喷射混凝土及隧道混凝土喷射施工方法
FENG FUXIN (Autor:in) / OUYANG LULONG (Autor:in) / YOOK YONG-CHEON (Autor:in) / LYU TONGLI (Autor:in) / ZHAO JIANCHUN (Autor:in)
02.12.2022
Patent
Elektronische Ressource
Chinesisch
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