Covering earth balanced safe receiving method of large-diameter shield tunneling machine

A receiving method and shield machine technology, which can be applied in the direction of earth drilling, mining equipment, tunnels, etc., can solve the problems of difficulty in retaining water in advance wells, ground subsidence, and high cost, so as to avoid the occurrence of receiving risks and control surface subsidence Effect

Inactive Publication Date: 2017-08-08
CHINA RAILWAY SHISIJU GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of high groundwater confined head, it is difficult and expensive to use this technical method to implement water retention in advanced wells
In addition, in this method, when the large-diameter shield machine goes out of the hole, the soil at the hole will collapse and flow into the receiving well, causing ground subsidence

Method used

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  • Covering earth balanced safe receiving method of large-diameter shield tunneling machine
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  • Covering earth balanced safe receiving method of large-diameter shield tunneling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A large-diameter shield machine covering soil balance safe receiving method, the steps are as follows:

[0037] (1) Determine the penetration attitude of the shield machine 3: adjust the attitude of the shield machine 3 100 meters before the cutter head of the shield machine 3 enters the door 8, and use the method of manual measurement to calculate the measured data to obtain the shield machine 3’s horizontal orientation, roll angle and slope angle, combined with the geometric relationship between the front mark and the back mark of the machine’s built-in measurement system in the shield machine 3, the center coordinates of the shield head and shield tail are obtained, and at the same time, combined with the central axis of the tunnel design, the shield is adjusted. The position of the tunneling machine 3, so that the central axis of the shield machine 3 is consistent with the position of the central axis of the tunnel design;

[0038] (2) Sealing and reinforcement of r...

Embodiment 2

[0049] A large-diameter shield machine covering soil balance safe receiving method, the steps are as follows:

[0050] (1) Determine the penetration attitude of the shield machine 3: adjust the attitude of the shield machine 3 100 meters before the cutter head of the shield machine 3 enters the door 8, and use the method of manual measurement to calculate the measured data to obtain the shield machine 3’s horizontal orientation, roll angle and slope angle, combined with the geometric relationship between the front mark and the back mark of the machine’s built-in measurement system in the shield machine 3, the center coordinates of the shield head and shield tail are obtained, and at the same time, combined with the central axis of the tunnel design, the shield is adjusted. The position of the tunneling machine 3, so that the central axis of the shield machine 3 is consistent with the position of the central axis of the tunnel design;

[0051] (2) Sealing and reinforcement of r...

Embodiment 3

[0062] A large-diameter shield machine covering soil balance safe receiving method, the steps are as follows:

[0063] (1) Determine the penetration attitude of the shield machine 3: adjust the attitude of the shield machine 3 100 meters before the cutter head of the shield machine 3 enters the door 8, and use the method of manual measurement to calculate the measured data to obtain the shield machine 3’s horizontal orientation, roll angle and slope angle, combined with the geometric relationship between the front mark and the back mark of the machine’s built-in measurement system in the shield machine 3, the center coordinates of the shield head and shield tail are obtained, and at the same time, combined with the central axis of the tunnel design, the shield is adjusted. The position of the tunneling machine 3, so that the central axis of the shield machine 3 is consistent with the position of the central axis of the tunnel design;

[0064] (2) Sealing and reinforcement of r...

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Abstract

The invention provides a covering earth balanced safe receiving method of a large-diameter shield tunneling machine. The method comprises the following steps of determining the through posture of the shield tunneling machine, sealing and reinforcing a reinforced area, lowering the water level of the reinforced area, removing a portal of a receiving well, manufacturing a substrate, performing earth filling and watering, enabling the shield tunneling machine to perform tunneling, and receiving the shield tunneling machine. By means of the covering earth balanced safe receiving method of the large-diameter shield tunneling machine, the shield tunneling machine can arrive at the receiving well safely while water and soil pressure balance and effective counter-force are maintained. Besides, a protection measure of an underwater arrival method is adopted for receiving of the shield tunneling machine in order to reduce the construction risk. The method has the advantages of safety and low cost, and can better achieve safe receiving of the shield tunneling machine.

Description

technical field [0001] The invention belongs to the technical field of receiving methods for shield tunneling machines, in particular to a method for safely receiving large-diameter shield machines with soil-covered balance. Background technique [0002] Shield reception is the last key link in shield tunnel construction, and it is the focus and difficulty of shield construction, and it has certain risks. When the shield tunnel is located in the soft ground with rich groundwater, when the portal is removed, water will flow into the receiving shaft from the gap in front of the portal, which will also cause the water outside the reinforcement area to flow along the enclosure during the demolition of the portal There is a certain construction risk due to the penetration of joints between connecting walls and plain walls. In addition, when the large-diameter shield machine came out of the hole, a large amount of soil flowed into the receiving shaft from the hole door, causing t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D9/14
CPCE21D9/06E21D9/14
Inventor 陈健王承震王德福胡浩
Owner CHINA RAILWAY SHISIJU GROUP CORP
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