Controlling and reinforcing method for soft soil shield receiving

Abstract

The invention discloses a controlling and reinforcing method for soft soil shield receiving. The controlling and reinforcing method comprises the following steps that step 1, construction of a shielding receiving end is carried out, specifically, reinforcement construction of the receiving end and the precipitation construction of the receiving end are carried out; step 2, a shielding receiving bracket is installed; step 3, construction of a door opening is carried out, specifically, a door opening sealing device is mounted, measurement before penetrating is carried out, shielding posture is adjusted and parameters are adjusted; step 4, shield receiving is carried out; and step 5, treatment after shield receiving is carried out; a segment tensioning device is arranged at an end well; aftershield receiving, grouting plugging is carried out, and a shield tunneling machine is hoisted out of the end well; and lower layer reinforcement structure is detached. The steps are simple, the design is reasonable and construction transportation is simple and convenient; implementation of the actual project operation is high; disturbance in the shield receiving is reduced during construction process; and integrity and stability are improved. The reinforced solid has certain supporting independence and stability, is free of water linkage and sand drifting, thereby having the good water blocking effect.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a soft soil shield reception control and reinforcement method. Background technique [0002] In recent years, as the scale of cities in our country has doubled, the problem of backward infrastructure has emerged, and the contradictions of urban transportation have become increasingly prominent. With its advantages of safety, punctuality, and speed, subways are playing an increasingly important role in expanding urban space, creating urban rapid three-dimensional traffic networks, and improving urban traffic environments. Major cities across the country are actively planning and constructing subway projects according to the needs of sustainable urban development and the healthy development of urban transportation. However, the soil in some areas is soft, and accidents are prone to occur during shield tunneling. Especially, shield tunnel reception is a high...

AI Technical Summary

Problems solved by technology

However, the soil in some areas is soft, and accidents are prone to occur during shield tunneling. In particular, shield tunnel reception is a high-risk process in tunnel construction, which is a difficult point in project safety and quality control.

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