Pipe roofing heave monitoring system and method applied to pipe roofing box culvert construction

Abstract

The invention discloses a pipe roofing heave monitoring system and method applied to pipe roofing box culvert construction, and relates to the technical field of pipe roofing box culvert jacking construction. The pipe roofing heave monitoring system comprises inclination angle sensors which are bonded and fixed in a steel pipe at equal interval in the length direction of the steel pipe, and the inclination angle sensors are connected with a communication line in series; the system further comprises a controller located on a concrete base layer, a plurality of sets of communication lines penetrating out of the steel pipes are in communication connection with the controller, and the controller is in communication connection with a far-end server. Inclination angle data information of each monitoring point is measured by the inclination angle sensor, and then analysis is carried out according to the inclination angle data information, so that observation of the heaving of the pipe roofingcan be effectively, stably, simply and economically realized.

Description

technical field [0001] The invention relates to the technical field of pipe curtain box culvert jacking construction, in particular to a pipe curtain uplift monitoring system and a monitoring method. Background technique [0002] The box culvert jacking technology is an important part of the construction technology of box culvert jacking inside the pipe curtain, and its technical prototype is the common pipe jacking tunnel method. Up to now, the box culvert jacking method has been applied in many countries and regions in Asia, Europe and America. The earliest underground passage using the box culvert jacking method in my country was the Tianjin Dongfeng Tunnel Bridge constructed in 1966. Since the 1970s, the box culvert jacking method has been widely used in North China, Northwest China, East China and other places. [0003] In 2004, the pipe curtain-box culvert jacking method was first applied in the Beihong Road tunnel of Shanghai Central Ring Road. This is the first time...

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Problems solved by technology

[0005] In the new construction of Tianlin Road Tunnel in Shanghai, the inner diameter of the steel pipe curtain is only 800mm. It is not feasible to use the traditional geometric leveling method to observe the heave of the steel pipe curtain.

It is difficult to provide a stable reference point when using the commonly used static level to observe the rise of the pipe curtain, and it is difficult to install the static level in the narrow space of the pipe curtain

There are two main problems in using a horizontal fixed inclinometer to observe the uplift of the pipe curtain: one is that its economic cost is relatively high; ; The inclinometer pipe and the steel pipe are in line contact, not surface contact. Even if steel hoops are used every once in a while, it is difficult to stably form the two into an integrated structure. Stably fixed on the steel pipe curtain

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