JP2017116971A - System to change reference value for operation restriction against complex disaster of slope failure due to precipitation and earthquake - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system, to change a reference value for operation restriction against complex disaster of slope failure due to precipitation and earthquake, capable of improving safety against the complex disaster thereof by accurately measuring the precipitation.SOLUTION: In a system to change a reference value for operation restriction against complex disaster of slope failure due to precipitation and earthquake, a groundwater anemometer is installed at a boundary between a layer with low permeability and the layer with high permeability under a slope near a rail track and a seismometer is installed near the same. Also, information from the groundwater anemometer and the seismometer is integrated by a processing system. When a groundwater flow rate measured by the groundwater anemometer becomes not less than a predetermined value, the reference value for operation restriction on the basis of a measurement of the seismometer is lowered.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an operation regulation (alarm output) system at the time of an earthquake on a railway or road, and more particularly to a system for changing a reference value of an operation regulation for a slope disaster due to rainfall and a combined disaster caused by an earthquake.

  Conventionally, Patent Documents 1 to 3 below have been proposed as countermeasures against complex disasters when an earthquake occurs when heavy rain occurs on a route near a slope where collapse is a concern.

  Moreover, the following patent document 4 is put into practical use as a flow velocity flow direction meter.

  FIG. 2 is a cross-sectional view of an electrode portion of a conventional groundwater flow velocity meter.

  In this figure, 101 is a peripheral electrode, 102 is a boring hole, 103 is a central electrode / tracer (distilled water), 104 is an artificial permeable body, and 105 is a flow of groundwater.

  This groundwater flow velocity meter detects the flow velocity and flow direction of groundwater by measuring the resistance change between the electrodes in the sensor. As shown in this figure, when the test solution (distilled water) having a different value from the specific resistance value of groundwater is poured into the center of the measuring instrument, the electrode in the sensor moves due to the inflow of groundwater. Thus, the resistance value between the electrodes changes. By analyzing this change in resistance, the velocity and direction of groundwater can be determined.

  Therefore, this groundwater flow velocity meter can be measured by (1) one borehole. (2) It can be measured easily in a short time. (3) It can be measured repeatedly.

Japanese Patent No. 5535870 JP 2004-183340 A JP 2014-0667160 A Japanese Examined Patent Publication No. 62-4662 (Patent No. 1395803)

  As described above, it is known that the stability of natural slopes decreases due to heavy rain, but when a large shaking earthquake occurs at the same time, the stability further decreases and the possibility of collapse Rise.

  In view of the above situation, the present invention can improve the safety against a slope disaster caused by rainfall and a combined disaster caused by an earthquake by accurately measuring the rainfall. It aims at providing the standard value change system of regulation.

In order to achieve the above object, the present invention provides
[1] In the system for changing the standard values of operational regulations for combined slope failure and earthquake disaster due to rainfall, a groundwater velocimeter is installed at the boundary between the low-permeability layer and the high-level layer on the slope near the track, and The information from the groundwater anemometer and the seismometer is integrated in the processing system, and when the groundwater velocity of the groundwater anemometer exceeds the specified value, the operation regulation standard value of the seismometer is lowered. It is characterized by that.

  [2] In the system for changing the reference value of the operation regulation for the combined disaster of slope failure due to rainfall and earthquake as described in [1] above, a groundwater level meter is installed instead of the groundwater anemometer.

  [3] In the system for changing the standard value of the driving regulation for the combined disaster of slope failure due to rainfall and earthquake as described in [1] or [2] above, the driving regulation object is a railway vehicle traveling on a track. To do.

  [4] In the system for changing a reference value for driving regulation against a combined disaster caused by a slope failure due to rainfall and an earthquake as described in [1] or [2] above, the driving regulation object is a vehicle traveling on a road. .

  [5] In the system for changing the reference value of the driving regulation against the combined disaster of slope failure and earthquake due to rainfall according to the above [1] or [2], the railway car in which the driving regulation object travels on the track and the vehicle on the road It is characterized by both.

  According to the present invention, by accurately measuring rainfall, it is possible to improve safety against a slope disaster caused by rainfall and a combined disaster of earthquakes.

It is a schematic diagram of the reference value change system of the driving | running regulation with respect to the slope disaster by the rain and the compound disaster of an earthquake which shows the Example of this invention. It is electrode part sectional drawing of the conventional groundwater flow velocity direction meter.

  According to the present invention, the system for changing the standard value of the operational regulation for the combined slope failure and earthquake disaster by installing a groundwater velocimeter at the boundary between the low-permeability layer and the high-level layer on the slope near the track, and the seismometer near the track The information from the groundwater anemometer and the seismometer is integrated in the processing system, and when the groundwater velocity of the groundwater anemometer exceeds the specified value, the operation regulation standard value of the seismometer is lowered. .

  Hereinafter, embodiments of the present invention will be described in detail.

  FIG. 1 is a schematic diagram of a reference value changing system for operation regulation against a combined disaster caused by a slope failure and an earthquake due to rainfall, showing an embodiment of the present invention.

  In this figure, 1 is a natural slope, 2 is a low water permeability layer of the natural slope 1, 3 is a high water permeability layer of the natural slope 1, and 4 is a boundary between a low water permeability layer and a high layer of the slope 1 near the track A groundwater anemometer, 5 is a seismometer installed near the track, 6 is connected to the groundwater anemometer 4 and the seismometer 5 and integrates information from the groundwater anemometer 4 and the seismometer 5, Reference numeral 7 denotes a track laid near the natural slope 1.

  According to the present invention, a groundwater anemometer 4 is installed at the boundary between the low water permeability layer 2 and the high water layer 3 of the natural slope 1 in the system for changing the standard value of the operational regulation for the slope failure due to rainfall and the combined disaster of earthquake. When the seismometer 5 is installed in the vicinity of the track, the information from the groundwater velocimeter 4 and the seismometer 5 is integrated by the processing device 6, and when the groundwater flow velocity by the groundwater velocimeter 4 exceeds the specified value, the seismometer 5 Reduce the operation regulation standard value.

  In addition, a groundwater level meter can be installed instead of the groundwater current meter.

  In the system for changing the standard value of the driving regulation against the combined disaster of slope failure and earthquake due to rain, the driving regulation target object is a railway vehicle traveling on the track.

  In the reference value changing system for driving regulation against the combined disaster of slope failure and earthquake due to rain, the driving regulation target object is a vehicle traveling on a road.

  Furthermore, in the reference value changing system for driving regulation against a slope disaster caused by rainfall and a combined disaster of earthquake, the driving regulation target object is both a railway vehicle traveling on a track and a vehicle traveling on a road.

  In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

  According to the present invention, the system for changing the standard value of the operation regulation for the combined slope failure and earthquake disaster due to the rain can improve the safety against the combined slope failure due to the rain and the combined disaster of the earthquake. It can be used as a standard value change system for operation regulations against disasters.

1 Natural slope 2 Low water permeability layer of natural slope 3 High water permeability layer of natural slope 4 Groundwater anemometer 5 Seismometer 6 Treatment device 7 Track

Claims (5)

  Install a groundwater anemometer near the boundary between the low-permeability layer and the high layer on the slope near the track, install a seismometer near the track, integrate the information from the groundwater anemometer and the seismometer with a processing system, A system for changing the standard value of the operational regulation for a slope failure due to rainfall and a combined disaster of an earthquake characterized by lowering the operational regulation standard value of the seismometer when the groundwater flow velocity of the groundwater current meter exceeds a specified value .   The combined system of slope failure due to rainfall and earthquake, characterized in that a groundwater level meter is installed in place of the groundwater anemometer in the system for changing the standard value of operation regulation for the slope disaster and earthquake disaster due to rain according to claim 1 A system for changing the standard values of operation regulations for disasters.   3. A slope change due to rainfall according to claim 1 or 2, wherein the operation restriction object is a railway vehicle that travels on a railway track. A system for changing the standard values of operation regulations for combined disasters of collapse and earthquake.   The slope failure due to rainfall according to claim 1 or 2, wherein the operation restriction target is a vehicle traveling on a road, in the system for changing the reference value of the slope due to rainfall and the combined disaster caused by earthquake. Standard value change system for operation regulations for complex disasters of earthquakes and earthquakes.   3. The system for changing a reference value for driving regulation against a combined disaster caused by a slope failure due to rainfall and an earthquake according to claim 1 or 2, wherein the driving regulation target object is both a railway vehicle traveling on a track and a vehicle traveling on a road. A system for changing the standard value of operational regulations for combined disasters of slope failure and earthquake due to rainfall.

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