High and steep slope earthquake instability early warning method for under interaction of pier stud-pile-soil foundation and application of high and steep slope earthquake instability early warning method
A technology for high and steep slopes and piers, which is applied in the field of early warning of earthquake instability on high and steep slopes, can solve the problems of seismic response without considering complex geological conditions, inability to measure soil deformation values, and limited applicability of models, etc., to achieve The effect of long service life, low cost and convenient operation
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Embodiment 1
[0060] An early warning method for earthquake instability of high and steep slopes under the interaction of pier-pile-soil, such as figure 1 shown, including the following steps:
[0061] Step 1: Geological prospecting or investigation of geological reports to determine the soil parameters of different soil layers.
[0062] Step 1.1: Mainly determine the cohesion, internal friction angle and soil weight of different soil layers;
[0063] Step 1.2: Calculate the shear strength of the soil at different positions on the monitoring pole, compare the earth pressure measured by the earth pressure box, and use it in step 7.1 to determine the stability of the high and steep slope after the earthquake;
[0064] Firstly, conduct geological exploration or investigate geological exploration reports, analyze the soil depth of different soil types, and obtain the cohesion and internal friction angle shear strength indicators of different soil types. In a preferred embodiment of the presen...
Embodiment 2
[0112] Such as image 3 and Figure 4 As shown, a device applying the method for early warning of earthquake instability of high and steep slopes under the interaction of pier column-pile-soil foundation includes a monitoring rod, and the monitoring rod includes a rectangular steel pipe 3 and is arranged on the top of the rectangular steel pipe 3 The top hat 1, the monitoring rod is provided with a number of detection elements, the monitoring rod is provided with a data transmission unit 2, the data transmission unit through the opening of the GPRS function of the SIM card, the detection element detects the horizontal acceleration, pile The soil pressure between the soil and the strain value between the monitoring poles are sent to the remote data processing terminal in real time.
[0113] Preferably, the detection elements include: an earth pressure cell 4, a horizontal accelerometer 5 and a strain gauge 6, and each potential sliding surface 11 is symmetrically arranged with...
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