Side slope dynamic stability coefficient determination method based on underground water level and displacement monitoring

A technology of dynamic stability and groundwater level, applied in measurement devices, electrical digital data processing, special data processing applications, etc., can solve problems such as the inability to explain the formation mechanism and mechanical dynamics of landslides, and the lack of a stable and unified instability criterion.

Active Publication Date: 2015-03-11
QINGDAO TECHNOLOGICAL UNIVERSITY
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Problems solved by technology

However, the displacement time-series prediction method reflects the trend and law of landslide deformation over time, and most of them are displacement apparent mathematical evaluation models based on mathematical statistics. Therefore, this type of evaluation model can only explain the process and law of landslide deformation and displacement, but ca...

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  • Side slope dynamic stability coefficient determination method based on underground water level and displacement monitoring
  • Side slope dynamic stability coefficient determination method based on underground water level and displacement monitoring
  • Side slope dynamic stability coefficient determination method based on underground water level and displacement monitoring

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[0066] In order to illustrate the present invention better, below in conjunction with accompanying drawing, take certain water-induced accumulation layer landslide as embodiment to further describe in detail, the landslide area of ​​this accumulation layer landslide is 0.73km 2 , volume about 3×10 7 m 3 , the deposits are mainly composed of collapsing (slope) crushed rocks and clay, and the underlying bedrock surface is Silurian sand and shale, with complex shapes. It occurred on June 12, 1985 under the influence of groundwater environment changes. destroyed. The monitoring time of the landslide in this embodiment is from January, 1978 to the destruction of the landslide instability, the slope dynamic stability coefficient of the present invention determines the process as follows figure 1 As shown, the specific implementation steps are as follows:

[0067] Step 1: Monitor the basic data of slope groundwater level and displacement

[0068] ①Monitoring instruments: groundw...

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Abstract

The invention discloses a side slope dynamic stability coefficient determination method and technology based on underground water level change and displacement monitoring data. The landslide formation motivation and mechanism are cross coupled with displacement response information change and an evaluation method thereof. A nonlinear unload and load response ratio parameter prediction model is established so that the side slope stability coefficient determination method based on underground water level and displacement change is established. According to the landslide displacement prediction method, the idea of a conventional displacement time sequence prediction method that only landslide displacement or displacement rate is selected to act as monitoring and evaluation parameters is changed, and simultaneous monitoring and integration of landslide underground water level and displacement or displacement rate are put forward so that the coupling integration power prediction parameter and evaluation method of landslide underground water level and displacement or displacement rate is confirmed. The limitation that a static limit mechanics evaluation method cannot analyze and evaluate the change rule of side slope stability along with time can be overcome by the method, and a defect that the conventional displacement time sequence prediction method cannot analyze and evaluate the landslide formation mechanism and motivation can also be overcome by the method.

Description

technical field [0001] The invention belongs to the field of quantitative evaluation and prevention of water-induced landslide dynamic stability, and in particular relates to a method and technology for measuring the dynamic stability coefficient of this type of slope based on groundwater level change and displacement monitoring data. Background technique [0002] Landslides are an important research content in the field of natural disasters and environmental science. From the perspective of geological disasters, landslides are common and frequently occurring, widely distributed and extremely harmful geological disasters, which often threaten national economic construction and people's lives and property. All brought huge losses. As we all know, the change of groundwater environment is the most important formation mechanism and cause of landslides. According to statistics, landslides induced by changes in the groundwater environment caused by rainfall account for 70% of the...

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Application Information

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IPC IPC(8): G01D21/02G06F19/00G08B21/10
Inventor 贺可强杨德兵张嘉鑫李晶
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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