Method for performing monitoring ground surface settlement and deformation of separate underground space on line

Abstract

The invention discloses a method for monitoring ground surface settlement and deformation of separate underground spaces on line. The method comprises the following steps: (1) calculating a settlementtank curve by means of an array; (2) selecting a transverse measurement point array on each cross section; (3) setting a longitudinal measurement point array on each longitudinal section; (4) diggingrectangular drill holes with certain lengths, widths and heights at the positions of the transverse measurement point arrays and the longitudinal measurement point arrays, putting protective wells into the holes, injecting fast setting concrete into the protective wells, putting micro-electromechanical system (MEMS) inclination angle sensing devices into the fast setting concrete; (5) enabling all the MEMS inclination angle sensing devices to automatically measure inclination angles, and sending results to a terminal by means of a network; (6) automatically receiving measured data in a wireless way by means of the terminal, interpreting the data, and then sending the data to a tunnel cloud monitoring server; (7) completing the functions of receiving, storing, processing, analyzing, alarming and visualizing showing the monitored data in an on-line way by means of the server. The monitoring method can realize intelligent measurement in the whole process, and has the advantages of high measurement accuracy and simple installation.

Description

technical field [0001] The invention relates to the field of underground space, in particular to a method for on-line monitoring surface settlement and deformation of a separate underground space. Background technique [0002] With the continuous development of my country's economy and society, the scale of transportation infrastructure construction has gradually expanded, and the number and mileage of tunnels have gradually increased. As of 2010, the total length of my country's built railway tunnels exceeds 7,000km, road tunnels reach 5,000km, and subway lines reach 1,400km. It is estimated that by 2020, my country will also plan to build 5,000 tunnels with a total length of more than 9,000 kilometers. my country has become the country with the most, most complex and fastest-growing tunnels in the world. [0003] Tunnel construction, especially the excavation process, will produce surrounding rock disturbance effects, which will cause tunnel vault settlement and surround...

AI Technical Summary

Problems solved by technology

This measurement method has the following disadvantages: 1) It requires technicians to go to the site for manual measurement. Not only is the on-site operation complicated, time-consuming and laborious, but also human factors have a greater impact on the measurement accuracy; 2) Urban tunnels are usually built along the main road. The traffic on the road is heavy, the environment is complex, there are many influencing factors, the measurement site is narrow, and field measurements are often required at night, and the light is weak, resulting in low reliability and sensitivity of the measurement; 3) each section only measures a limited number of points, It is difficult to accurately reflect the deformation state of the entire section; 4) File management and manual calculation are usually used to process on-site monitoring data, which cannot realize database management, sharing and original data traceability, resulting in low analysis efficiency and data authenticity cannot be guaranteed

However, the above-mentioned monitoring equipment has disadvantages such as high cost and difficult installation, and is rarely used in actual projects.

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