Calculation method of slope sliding thrust based on deep displacement deformation monitoring

Abstract

The invention relates to a calculation method of slope sliding thrust, in particular to a calculation method of the slope sliding thrust based on deep displacement deformation monitoring. The calculation method solves the problem that large deviation of results of existing calculation methods of the slope sliding thrust from true values. The calculation method of the slope sliding thrust based ondeep displacement deformation monitoring includes the steps that a continuous deformation of the deep part of a slope is obtained through displacement monitoring of slope deep displacement by using aninclinometer; an elastic modulus of a rock and soil layer inside the slope is obtained by conducting indoor mechanical test analysis on rock and soil samples of the slope; based on a principle of elastic deformation, a stress state of the slope is obtained, and thus the slope sliding thrust and thrust shape distribution are deduced. According to thrust calculation results, corresponding engineering treatment measures are taken.

Description

technical field [0001] The invention relates to a slope sliding thrust calculation method, in particular to a slope sliding thrust calculation method based on deep displacement and deformation monitoring. Background technique [0002] Calculation of slope sliding thrust is the key to slope prevention technology and method. Under the existing technical conditions, the calculation methods of slope sliding thrust mainly include BISHOP method, transfer coefficient method, unbalanced thrust method, etc., on the basis of assuming that the location of the sliding surface and its mechanical parameters are known, according to the applicable conditions (such as BISHOP The method ignores the moment generated by the interstrip force, and assumes that the vertical lateral force of the soil strip is 0) to calculate the sliding thrust of the potential sliding surface. However, the above methods often have the following disadvantages: 1. The actual sliding surface is often unknown, so the ...

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Problems solved by technology

However, the above methods often have the following disadvantages: 1. The actual sliding surface is often unknown, so the designed sliding surface is a virtual position, which is quite different from the real position; 2. Due to the application of the calculation method, the shape of the sliding surface It can only be a circular arc or a broken line with a small slope. When the shape of the sliding surface does not conform to the calculation result, the deviation of the calculation result is extremely large; 3. Most of the mechanical parameters of the sliding surface used in the calculation are speculative values ​​(very few mechanical parameters are Real field test test value), the difference between the value and the real value leads to a huge difference between the calculated value and the real sliding force

The above reasons lead to inaccurate calculation of the glide thrust, which in turn leads to a large difference between the engineering design and the actual situation, resulting in some engineering waste

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