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A platform for research: civil engineering, architecture and urbanism
Method for treating tunnel non-surrounding rock stress cracks or falling and chipping by adopting composite mortar
The invention discloses a method for treating tunnel non-surrounding rock stress cracks or falling blocks by adopting composite mortar. The method comprises the following steps: step 1, grooving at the tunnel non-surrounding rock stress cracks or falling blocks to form strip-shaped grooves; 2, a fixing net is pasted to the bottom of the strip-shaped groove in the strip-shaped groove; 3, an adhesion agent is sprayed to the fixing net; 4, composite mortar is sprayed on the upper layer of the interface agent, so that the strip-shaped grooves are filled with the composite mortar, and the composite mortar is flush with the original tunnel lining structural surface; the composite mortar adopted by the invention has higher mechanical property, toughness property, shrinkage property and anti-permeability property, various performance indexes are slightly higher than those of operating tunnel structure concrete, the standard requirements are met, and non-surrounding rock stress cracks, falling and chipping of the tunnel can be effectively treated.
本发明公开了采用复合砂浆治理隧道非围岩应力裂缝或脱落掉块的方法，包括：步骤1：在隧道非围岩应力裂缝或脱落掉块处开槽形成条状槽；步骤2：在条状槽内将固定网黏贴在条状槽的底部；步骤3：向固定网上喷涂界面剂；步骤4：在界面剂上层喷射复合砂浆，使得复合砂浆填充满条状槽并与原隧道衬砌结构面齐平；本发明采用的复合砂浆具有较高力学性能、韧性性能、收缩性能和抗渗性能，各种性能指标均略高于运营隧道结构混凝土，满足规范要求，可以有效治理隧道非围岩应力裂缝、脱落掉块。
Method for treating tunnel non-surrounding rock stress cracks or falling and chipping by adopting composite mortar
The invention discloses a method for treating tunnel non-surrounding rock stress cracks or falling blocks by adopting composite mortar. The method comprises the following steps: step 1, grooving at the tunnel non-surrounding rock stress cracks or falling blocks to form strip-shaped grooves; 2, a fixing net is pasted to the bottom of the strip-shaped groove in the strip-shaped groove; 3, an adhesion agent is sprayed to the fixing net; 4, composite mortar is sprayed on the upper layer of the interface agent, so that the strip-shaped grooves are filled with the composite mortar, and the composite mortar is flush with the original tunnel lining structural surface; the composite mortar adopted by the invention has higher mechanical property, toughness property, shrinkage property and anti-permeability property, various performance indexes are slightly higher than those of operating tunnel structure concrete, the standard requirements are met, and non-surrounding rock stress cracks, falling and chipping of the tunnel can be effectively treated.
本发明公开了采用复合砂浆治理隧道非围岩应力裂缝或脱落掉块的方法，包括：步骤1：在隧道非围岩应力裂缝或脱落掉块处开槽形成条状槽；步骤2：在条状槽内将固定网黏贴在条状槽的底部；步骤3：向固定网上喷涂界面剂；步骤4：在界面剂上层喷射复合砂浆，使得复合砂浆填充满条状槽并与原隧道衬砌结构面齐平；本发明采用的复合砂浆具有较高力学性能、韧性性能、收缩性能和抗渗性能，各种性能指标均略高于运营隧道结构混凝土，满足规范要求，可以有效治理隧道非围岩应力裂缝、脱落掉块。
Method for treating tunnel non-surrounding rock stress cracks or falling and chipping by adopting composite mortar
采用复合砂浆治理隧道非围岩应力裂缝或脱落掉块的方法
NIU FUSHENG (author) / WANG HUA (author) / WEI XINYI (author) / CHEN HAIJUN (author) / YU JUN (author) / ZHENG KEREN (author) / WANG XIN (author) / CHEN ZHIYUAN (author) / WANG GUANGHUI (author) / LIN CHUNGANG (author)
2024-05-24
Patent
Electronic Resource
Chinese
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