Construction method for underneath passing of three-hole highway tunnel through existing railway

A technology for road tunnels and existing railways, applied in office automation, image data processing, instruments, etc., can solve problems such as the inability to adjust the construction progress of tunnels under construction in real time
CN113723934AInactive Publication Date: 2021-11-30赵红刚
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
赵红刚
Publication Date
2021-11-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of tunnel engineering construction, in particular to a construction method for underneath passing of a three-hole highway tunnel through an existing railway. Through the above scheme, the geological data of the three highway tunnels crossing the existing railway area and the geographic coordinate information of the existing railway are collected, the sensors are arranged on the existing railway, the collected information is imported into the modeling software to establish the geological model, and then the information collected by the sensors is transmitted to the model in real time. And the next circulating footage is adjusted in real time according to the settlement amount, monitored by the sensor, of each circulating footage, so that the technical defect that in the prior art, the construction progress of the tunnel under construction cannot be adjusted in real time according to information such as settlement displacement of an existing railway during tunnel excavation is overcome.
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Description

technical field

[0001] The invention relates to the technical field of tunnel engineering construction, in particular to a construction method for a three-hole highway tunnel passing under an existing railway. Background technique

[0002] The existing method to reduce the construction settlement and disturbance of the existing operating track is: chemical grouting reinforcement stratum method, that is, to carry out grouting reinforcement in advance on the existing railway subgrade stratum and the stratum within a certain range below to improve the soil quality. parameters, so as to reduce the construction settlement and disturbance caused by tunnels and other buildings passing under or adjacent to the construction process. However, the grouting reinforcement method has many disadvantages: First, the grouting reinforcement construction itself will cause disturbance and settlement to the existing subgrade, especially in the loess area, where the collapsibility of the loess is...

Claims

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