Tunnel supporting grouting equipment and grouting method thereof

Abstract

The invention discloses tunnel supporting grouting equipment and a grouting method thereof. The tunnel supporting grouting equipment comprises a slurrying device, a water cement ratio measuring and control instrument, a slurry pressing pump, a supporting column, a slurry inlet measuring and control box and a slurry outlet measuring and control box, wherein the water cement ratio measuring and control instrument is located on the slurrying device, the slurry pressing pump is connected with the slurrying device through a conveying pipeline, the supporting column needs to grout, the slurry inlet measuring and control box is installed between the slurry pressing pump and the supporting column, and the slurry outlet measuring and control box is installed on one side of the supporting column. The grouting equipment further comprises a main control machine. The main control machine is used for controlling the slurrying device, the water cement ratio measuring and control instrument, the slurry pressing pump, the slurry inlet measuring and control box and the slurry outlet measuring and control box. The slurry inlet measuring and control box is connected to a grouting hole. The slurry outlet measuring and control box is connected to a slurry outlet hole. The interiors of the slurry inlet measuring and control box and the slurry outlet measuring and control box are each provided with a flow sensor, a pressure sensor and a density sensor. The flow sensors are used for monitoring flow parameters of a slurry liquid in real time. The pressure sensors are used for monitoring pressure parameters of the slurry liquid in real time. The density sensors are used for monitoring density parameters of the slurry liquid in real time.

Description

technical field [0001] The invention relates to the technical field of grouting equipment, in particular to tunnel support grouting equipment. Background technique [0002] In recent years, there have been more and more tunnel construction projects in China, especially the construction of subway tunnels has sprung up in large and medium-sized cities. During the construction of underground excavation tunnels, difficult construction layers such as broken zones, loose zones, and weak bottom layers are often encountered. In order to ensure the stability of the excavation face of the tunnel project, it is usually necessary to reinforce and advance the support of the vault of the tunnel, and carry out grouting reinforcement. In the current construction process of grouting to strengthen the surrounding rock, the grouting material used is mostly cement grouting, and the cement grout has good adhesion and compressive strength to the loose surrounding rock. The method is pipe shed g...

AI Technical Summary

Problems solved by technology

The grouting equipment in the prior art has a low degree of automation, time-consuming and labor-intensive, and automatic grouting cannot be realized, and the grout often flows back, resulting in problems such as the grout not being able to fully fill into the rock crevices, water gushing and sand gushing, and uneven grouting, which affect the final product. Construction Quality

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