Method for determining benching non-circular slip surfaces by displacement monitoring

A technology of displacement monitoring and sliding surface, which is applied in excavation, on-site foundation soil survey, construction, etc., can solve the problems that have not been well solved, sudden changes, etc., and achieve the effect of wide application value and simple and clear measurement method

Inactive Publication Date: 2013-08-28
QINGDAO TECHNOLOGICAL UNIVERSITY +1
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Problems solved by technology

[0006] Sun Haishan et al. used the graphical method to determine the slip surface and its inclination, but this method is only applicable to the overall sliding slope. At the same time, the inclination of the cracks in the upper part of the slide mass and the shear outlet are not considered. Approximate value of slip surface in rock mass
[0007] Although useful explorations have been made on the method of determining the non-circular slip surface, this problem has not been well resolved so far. It can be said that there is no fast and effective method to determine the real non-circular slip surface of the slope.

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  • Method for determining benching non-circular slip surfaces by displacement monitoring
  • Method for determining benching non-circular slip surfaces by displacement monitoring
  • Method for determining benching non-circular slip surfaces by displacement monitoring

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Embodiment Construction

[0034] The method of utilizing displacement monitoring of the present invention to measure the non-circular slip surface of a slope comprises the following steps:

[0035] (1) Investigation and mapping of the characteristic position and parameters of the slope slip surface: use theodolite or total station to measure the distribution positions of the tensile cracks at the rear edge of the landslide and the shear outlet 5 at the front edge, and measure the width of the longitudinal cracks with a tape measure and a compass Determine the position of the deep edge point of the rupture wall and the direction of the arc tangent according to the length of the lateral distribution, the exposed depth of the rupture wall and the direction of the arc tangent at the corresponding point; the inclination direction of the 5 shear outlets at the leading edge is determined by pit or drilling survey tools;

[0036] (2) Displacement monitoring point setting of the main sliding surface of the lands...

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Abstract

The invention relates to the field of geotechnical engineering slope stability evaluation and prevention and treatment, in particular to a method for determining benching non-circular slip surfaces by displacement monitoring. The method includes: (1) surveying and mapping feature positions and parameters of a slope slip surface; (2) setting monitoring points of main slip surface displacement of a slope; (3) collecting and processing slope displacement monitoring data; (4) drawing a profile map of a slope main axis; (5) determining a slip mass distribution circle center and a slip surface position; and (6) drawing a complete main axis slip plane position. The method has the advantages that an initial slip surface needs not to be supposed, feature points that the slip surface passes in advance need not to be set, the slope slip surface is determined comprehensively just according to observation point displacement vector data, rear edge cracked wall position and shape and front edge shear opening position information, and determination of the slip surface position of a slip mass is no longer limited to a single slip circle and a circle center.

Description

technical field [0001] The invention relates to the field of geotechnical engineering slope stability evaluation and prevention, in particular to a method for determining and applying a slip surface of an arbitrary shape of a slope. Background technique [0002] With the rapid development of engineering construction in our country, in the construction of civil engineering infrastructure, it is inevitable to evaluate the slope stability, and to propose prevention and treatment measures and treatment plans in turn. The position of the slip surface is one of the prerequisites and essential elements for slope stability evaluation and prevention. [0003] The prerequisite for slope stability analysis and evaluation is how to effectively and accurately determine the most dangerous slip surface of the slope. So far, in the field of geotechnical engineering, the slope stability evaluation method generally adopts the limit equilibrium evaluation method of the circular sliding surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D1/00E02D17/20
Inventor 贺可强尹明泉阳吉宝罗会来李增涛
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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