Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for filling karst cave by using advanced grouting pipe of shield tunneling machine
The invention relates to the technical field of tunnel engineering construction, in particular to a construction method for filling a karst cave by using an advanced grouting pipe of a shield tunneling machine. The construction method comprises the following steps that S1, the advanced grouting pipe of the shield tunneling machine is transformed; S2, grouting equipment is selected and used; S3, reinforcement treatment of the grouting equipment is conducted; S4, thick slurry is injected into a soil bin, and the pressure is controlled to be 2.5 bar; S5, phosphoric acid water glass double-liquid slurry is injected into the periphery of a shield body; S6, a drill rod of a drilling machine drills through the advanced grouting pipe; S7, the drilling rod of the drilling machine enters a preset position, and grouting filling is conducted; and S8, the grouting effect is monitored according to the pressure change. The method is compact in pressure maintaining, higher in efficiency and low in construction cost, and has safety and economical efficiency.
本发明涉及隧道工程施工技术领域，更具体而言，涉及一种用盾构机超前注浆管溶洞填充的施工方法。包括以下步骤：S1、盾构机超前注浆管的改造；S2、注浆设备的选用；S3、注浆设备的加固处理；S4、向土仓内注入厚浆，压力控制2.5bar；S5、盾体四周注入磷酸水玻璃双液浆；S6、钻机钻杆通过超前注浆管钻孔；S7、钻机钻杆进入预定位置，进行注浆填充；S8、根据压力变化监测注浆效果。本发明保压密实，效率更高，且施工成本低，具有安全性和经济性。
Construction method for filling karst cave by using advanced grouting pipe of shield tunneling machine
The invention relates to the technical field of tunnel engineering construction, in particular to a construction method for filling a karst cave by using an advanced grouting pipe of a shield tunneling machine. The construction method comprises the following steps that S1, the advanced grouting pipe of the shield tunneling machine is transformed; S2, grouting equipment is selected and used; S3, reinforcement treatment of the grouting equipment is conducted; S4, thick slurry is injected into a soil bin, and the pressure is controlled to be 2.5 bar; S5, phosphoric acid water glass double-liquid slurry is injected into the periphery of a shield body; S6, a drill rod of a drilling machine drills through the advanced grouting pipe; S7, the drilling rod of the drilling machine enters a preset position, and grouting filling is conducted; and S8, the grouting effect is monitored according to the pressure change. The method is compact in pressure maintaining, higher in efficiency and low in construction cost, and has safety and economical efficiency.
本发明涉及隧道工程施工技术领域，更具体而言，涉及一种用盾构机超前注浆管溶洞填充的施工方法。包括以下步骤：S1、盾构机超前注浆管的改造；S2、注浆设备的选用；S3、注浆设备的加固处理；S4、向土仓内注入厚浆，压力控制2.5bar；S5、盾体四周注入磷酸水玻璃双液浆；S6、钻机钻杆通过超前注浆管钻孔；S7、钻机钻杆进入预定位置，进行注浆填充；S8、根据压力变化监测注浆效果。本发明保压密实，效率更高，且施工成本低，具有安全性和经济性。
Construction method for filling karst cave by using advanced grouting pipe of shield tunneling machine
一种用盾构机超前注浆管溶洞填充的施工方法
LI PENGFEI (Autor:in) / LI ZILI (Autor:in) / GUO BO (Autor:in) / WU XINXING (Autor:in) / CUI JUNHUA (Autor:in)
17.08.2021
Patent
Elektronische Ressource
Chinesisch
Karst tunnel bottom filling beaded type karst cave steel pipe pile grouting hole forming method
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