Test method of karst water burst when tunneling and monitor device thereof

A technology of tunnel excavation and monitoring device, applied in the field of test models, can solve the problems of low sampling rate, inability to realize real-time monitoring of tests, and no waterproofing, etc., and achieve the effects of rich collection data, high sampling rate, and wide application range

Inactive Publication Date: 2010-01-13
SHANDONG UNIV
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Problems solved by technology

Traditional monitoring components do not have waterproof function, and

Method used

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  • Test method of karst water burst when tunneling and monitor device thereof
  • Test method of karst water burst when tunneling and monitor device thereof
  • Test method of karst water burst when tunneling and monitor device thereof

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0032] A monitoring device for tunnel excavation karst water inrush test, which includes a model frame 2 fixed on a base 1, a prefabricated water tank 4, a water level pipe 5 (with scale), an optical fiber stress sensor 7, a displacement sensor 8, a temperature Sensor 9, osmotic pressure sensor 10, acoustic emission probe 11, model surface displacement and deformation observation mechanism, deformation and water inrush observation mechanism in the tunnel after model excavation, optical fiber demodulator 14 and computer 15, such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 Shown, wherein, prefabricated water tank 4 is positioned at the inside of model frame 2, and water level pipe 5 is positioned at the top of model frame 2; Each sensor is connected to the computer 15 through the optical fiber demodulator 14; the acoustic emission probe 11 is...

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Abstract

The invention discloses a test method of karst water burst when tunneling, comprising the following steps of: preparing materials; filling materials; embedding elements; embedding a water tank; injecting water and monitoring, tunneling and monitoring, etc. The invention further discloses a monitor device used for the test method of the karst water burst when tunneling, comprising a module frame fixed on a base, a preset water tank, a water pressure loading mechanism, a stress field monitoring mechanism, a deformation field monitoring mechanism, a temperature field monitoring mechanism, a seepage field monitoring mechanism, an acoustic emission field monitoring mechanism, a module surface displacement deformation observing mechanism, a module deformation and water burst observing mechanismin tunnels after tunneling, a fiber demodulation device and a computer. The invention simultaneously can research the change regularity of premonitory multi field information which induces the water burst when tunneling at different water body containing positions and under different water pressure conditions, has wide application, high reliability, abundant collecting data, high test precision, etc.

Description

technical field [0001] The invention relates to a tunnel excavation karst water inrush test method and a monitoring device, belonging to the field of test models. Background technique [0002] At present, my country's economic construction is developing more and more rapidly, and the requirements for infrastructure construction are constantly improving. In the construction of transportation facilities, water conservancy and hydropower projects, the number of deep buried tunnels in large mountains continues to increase. Carbonate rocks are widely distributed in my country, accounting for about 1 / 3 of the country's land area based on the distribution area of ​​soluble rock formations. Due to the large buried depth, long tunnel body and complex geological conditions of the karst deep-buried long tunnel project, during the construction process, there will be Encountered a series of special disaster geological problems, such as landslides, water inrush, mud (sand) inrush and other...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 李术才李利平李树忱冯现大李国莹
Owner SHANDONG UNIV
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