Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Advanced pre-supporting surrounding rock reinforcement process
The invention relates to an advanced pre-supporting surrounding rock reinforcing technology. The technology comprises the following steps that S1, horizontal jet grouting reinforcement is conducted on the outer contour of a tunnel excavation face; s2, the tunnel face is subjected to guniting reinforcement; s3, a guide arch frame is installed; s4, hole drilling, hole cleaning and hole inspection are carried out; s5, installing a small conduit, and sealing; s6, cement mortar is grouted into the soil layer through the small guide pipes; s7, standing and maintaining; the cement mortar comprises the following raw materials in parts by weight: 100-140 parts of superfine cement; 84 to 110 parts of mixing water; 0.4 to 0.6 part of a water reducing agent; 20 to 56 parts of fly ash; 1-5 parts of water glass; 8-12 parts of a slurry lubricant; 16 to 30 parts of reinforcing filler; and 11-15 parts of an expansion filler. The method has the effect of reducing the collapse probability of the surrounding rock.
本申请涉及一种超前预支护围岩加固工艺，包括以下步骤：S1、隧道开挖面外轮廓水平旋喷加固；S2、掌子面喷浆加固；S3、导向拱架安装；S4、钻孔、清孔和验孔；S5、小导管安装、封口；S6、通过小导管向土层内灌浆水泥砂浆；S7、静置养护；所述水泥砂浆包括以下重量份的原料：超细水泥100～140份；拌合水84～110份；减水剂0.4～0.6份；粉煤灰20～56份；水玻璃1～5份；泥浆润滑剂8～12份；增强填料16～30份；膨胀填料11～15份。本申请具有减小围岩坍塌的概率的效果。
Advanced pre-supporting surrounding rock reinforcement process
The invention relates to an advanced pre-supporting surrounding rock reinforcing technology. The technology comprises the following steps that S1, horizontal jet grouting reinforcement is conducted on the outer contour of a tunnel excavation face; s2, the tunnel face is subjected to guniting reinforcement; s3, a guide arch frame is installed; s4, hole drilling, hole cleaning and hole inspection are carried out; s5, installing a small conduit, and sealing; s6, cement mortar is grouted into the soil layer through the small guide pipes; s7, standing and maintaining; the cement mortar comprises the following raw materials in parts by weight: 100-140 parts of superfine cement; 84 to 110 parts of mixing water; 0.4 to 0.6 part of a water reducing agent; 20 to 56 parts of fly ash; 1-5 parts of water glass; 8-12 parts of a slurry lubricant; 16 to 30 parts of reinforcing filler; and 11-15 parts of an expansion filler. The method has the effect of reducing the collapse probability of the surrounding rock.
本申请涉及一种超前预支护围岩加固工艺，包括以下步骤：S1、隧道开挖面外轮廓水平旋喷加固；S2、掌子面喷浆加固；S3、导向拱架安装；S4、钻孔、清孔和验孔；S5、小导管安装、封口；S6、通过小导管向土层内灌浆水泥砂浆；S7、静置养护；所述水泥砂浆包括以下重量份的原料：超细水泥100～140份；拌合水84～110份；减水剂0.4～0.6份；粉煤灰20～56份；水玻璃1～5份；泥浆润滑剂8～12份；增强填料16～30份；膨胀填料11～15份。本申请具有减小围岩坍塌的概率的效果。
Advanced pre-supporting surrounding rock reinforcement process
一种超前预支护围岩加固工艺
DU ZHENYI (Autor:in) / GAO GUOQING (Autor:in) / YAN LEI (Autor:in)
15.11.2022
Patent
Elektronische Ressource
Chinesisch
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