Hydraulic servo vibroseis for tunnel advanced forecasting
A technology of advance prediction and hydraulic servo, applied in seismology, seismic energy generation, measuring devices, etc., can solve problems such as advance prediction of bad geological bodies, achieve improved prediction accuracy, controllable excitation frequency, and speed up engineering progress Effect
Pending Publication Date: 2021-05-28
JILIN UNIV
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Problems solved by technology
[0003] The purpose of the present invention is to provide an airborne hydraulic servo vibrator for advance prediction of tunnels in order to solve many problems encountered in advance prediction of unfavorable geological bodies by seismic wave method during tunnel construction
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[0029] see Figure 1 to Figure 3 Shown:
[0030] The airborne hydraulic servo vibrator for advanced tunnel forecasting provided by the present invention includes a bearing platform 1, a mechanical arm 2, a first hydraulic rod 3, a second hydraulic rod 4, an exciting hammer 5, a hydraulic oil tank 6 and a controller 7 , wherein the bottom of the mechanical arm 2 is hinged on the platform 1, the bottom of the first hydraulic rod 3 is also hinged on the platform 1, the top of the first hydraulic rod 3 is fixedly connected to the bottom of the upper end of the mechanical arm 2, and the first hydraulic rod The expansion and contraction of 3 can drive the mechanical arm 2 to rotate around the hinge shaft at the bottom, the top of the mechanical arm 2 is pivotally connected with a rotating plate 8, the second hydraulic rod 4 is assembled on the upper part of the mechanical arm 2, and the top of the second hydraulic rod 4 is fixed Connected to one end of the rotating plate 8, the exp...
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The invention discloses a hydraulic servo vibroseis for tunnel advanced forecasting. The hydraulic servo vibroseis comprises a bearing platform, a mechanical arm, a first hydraulic rod, a second hydraulic rod, an excitation hammer, a hydraulic oil tank and a controller, the bottom of the mechanical arm is hinged to the bearing platform, the bottom of the first hydraulic rod is also hinged to the bearing platform, the top end of the first hydraulic rod is fixedly connected with the bottom of the upper end of the mechanical arm, the first hydraulic rod stretches out and draws back to drive the mechanical arm to rotate around a hinged shaft at the bottom, the top end of the mechanical arm is in pivot joint with a rotating plate, the second hydraulic rod is assembled on the upper portion of the mechanical arm, and the top end of the second hydraulic rod is fixedly connected with one end of the rotating plate. The hydraulic servo vibroseis has the beneficial effects that an acceleration sensor and an LVDT sensor can collect acceleration signals and power generation signals of a seismic source, the vibration excitation frequency is controllable, the pulse energy is continuous and stable, the working efficiency of the vibroseis can be obviously improved, the forecasting accuracy is improved, the project progress is accelerated, and the economic benefit is improved.
Description
technical field [0001] The invention relates to a hydraulic servo vibrator, in particular to a hydraulic servo vibrator for tunnel forecasting. Background technique [0002] At present, with the improvement of the country's economic level, the demand for road tunnel construction and development has greatly increased, and there are still problems to be overcome in the process of tunnel construction. At present, tunnel excavation projects using TBM account for a large proportion of tunnel construction projects under construction. Due to its large structure and great influence from adverse geological conditions, in the construction of underground tunnels, the surrounding rock geological conditions are complex, and karst and loose bottom layers will be encountered. Restricted by the economic and technical level, it is difficult to completely find out the characteristics of the above-mentioned unfavorable geological bodies encountered in the tunnel excavation process only through...
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Login to View More IPC IPC(8): G01V1/133G01V1/04
CPCG01V1/133G01V1/04
Inventor 杜立志胡新民张晓培韩亚鲁王勇
Owner JILIN UNIV