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Method for simulating rock masses with surfaces of unconformity

A parallel unintegrated and angular unintegrated technology, applied in the field of geotechnical engineering, which can solve the problems of imperfect contact surface construction

Inactive Publication Date: 2014-05-28
陈善乐
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

In these simulations, the contact surface in the rock-soil mass is not constructed finely, and it will have unpredictable effects on specific issues such as later simulated construction. Therefore, how to construct a realistic contact surface is a problem worthy of study.

Method used

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  • Method for simulating rock masses with surfaces of unconformity
  • Method for simulating rock masses with surfaces of unconformity
  • Method for simulating rock masses with surfaces of unconformity

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Embodiment Construction

[0035] Use this method to build image 3 The rock mass of the inclusion contact surface. for image 3 (a) The rock mass structure of the inclusion integration surface is relatively simple, and it can be directly constructed by using the drop method and the range in FISH. Main discussion here image 3 (b) and image 3 (c) Construction. The coordinates of the two models are established as Figure 4 shown. The length (x) of the model is 100m, the height (z) is 55m, and the thickness (y) is 2m. Sampling of key points is carried out every 5m along the length direction, and the sampling point is the intersection coordinate of the dotted line in the figure and the contact surface. Numbers above the dotted line represent point numbers, and numbers below represent actual coordinates.

[0036]

[0037] Table 1 Key point coordinates and fitting formula

[0038]

[0039] After the coordinates are calibrated, the key points are collected and matlab fitting is carried out. The ...

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Abstract

The invention discloses a method for simulating rock masses with surfaces of unconformity. According to the method, the influence of the surfaces of unconformity of rock stratums on simulation is taken into account, PFC3D based on the particle flow code theory is used as a simulation platform, and contact situations of the different rock stratums in the underground rock masses are simulated respectively, wherein the contact situations comprise conformity, parallel unconformity and angular unconformity. The method includes the following steps that a rock mass coordinate system is defined, key coordinate points of the trend of contact surfaces are determined, trend curves are fitted through MATLAB, curve parameters are acquired, the rock stratums are constructed through a drop method, and the contact surfaces are formed through FISH according to the parameters of the trend curves. By the adoption of the method, the underground rock masses can be accurately modeled, and the method is used for constructing the rock masses mingled with the contact surfaces of different forms.

Description

technical field [0001] The invention relates to geotechnical engineering, in particular to accurate modeling of underground rock and soil bodies. Background technique [0002] When conducting feasibility analysis and safety analysis of underground engineering, in most cases, the geological conditions of the area where the project is located are not the same, and may include various geological structural phenomena. The areas where human beings live today are mainly concentrated in areas where Quaternary geological activities were not intense. The surface of these areas is generally formed by deposition-denudation-re-deposition. contact surface. The properties of the upper and lower layers of the contact surface are different, and the contact surface weakens the connection between the two sets of rock layers. Therefore, the existence of the contact surface has a direct impact on the simulation of rock and soil mass. [0003] At present, there are few studies on the contact s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 陈善乐汪华君崔铁军赵明洲王坤王洪波
Owner 陈善乐
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