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Soil deformation prediction method, system and equipment and readable storage medium

A soil deformation and prediction method technology, applied in the field of geotechnical engineering, can solve the problems of poor applicability and reliability, large prediction time consumption, opaque calculation, etc., and achieve the effect of quick and targeted, less prediction time consumption and clear meaning

Pending Publication Date: 2021-12-14
XI'AN PETROLEUM UNIVERSITY +1
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Problems solved by technology

[0008] Aiming at the technical problems existing in the prior art, the present invention provides a soil deformation prediction method, system, equipment and readable storage medium to solve the problem of stratum deformation in tunnel shield construction in large-thickness collapsible loess areas. In forecasting, there are technical problems such as poor applicability and reliability, strong subjectivity, opaque calculation and large forecast time consumption

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  • Soil deformation prediction method, system and equipment and readable storage medium
  • Soil deformation prediction method, system and equipment and readable storage medium
  • Soil deformation prediction method, system and equipment and readable storage medium

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Embodiment

[0080] In this example, taking the monitoring section of a tunnel in the Hang-Shen section of Xi'an Metro Line 4 as an example, the deformation of large-thickness collapsible loess strata under the influence of tunnel construction is predicted by using the soil deformation prediction method described above. .

[0081] as attached figure 2 shown, with figure 2 The flow chart of the soil deformation prediction method described in this embodiment is given in the present embodiment; wherein, the vertical displacement v(x, z) And the horizontal displacement u(x,z) is the target value that needs to be predicted.

[0082] The specific process is as follows:

[0083] Step 1. Obtain the geometric design data of the target tunnel.

[0084] According to the geotechnical investigation data of shield tunneling in the Hang-Shen section of Xi'an Metro Line 4, the buried depth of the target tunnel is H 0 = 14.56m, the tunnel design diameter of the target tunnel is D = 6.06m, and the ou...

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Abstract

The invention discloses a soil deformation prediction method, system and device and a readable storage medium. The method comprises the steps: obtaining geometric design data of a target tunnel which passes through a large-thickness collapsible loess stratum, a soil internal friction angle of the large-thickness collapsible loess stratum, and a collapsibility coefficient which passes through the stratum; according to the geometric design data of the target tunnel, the friction angle in the soil body and the collapsibility coefficient of the penetrating stratum, the width of a settling tank at any vertical depth from the tunnel vault to the earth surface and the stratum loss rate after the target tunnel is excavated are calculated; according to geometric design data of the target tunnel, the stratum loss rate after excavation of the target tunnel and the width of a settling tank at the vertical depth in the large-thickness collapsible loess stratum, vertical displacement and horizontal displacement at any point between the earth surface of the large-thickness collapsible loess stratum and the arch crown of the target tunnel are calculated; a soil deformation prediction result is obtained; the method has the characteristics of clear meaning, simple formula, few calculation parameters and better accuracy.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to a soil deformation prediction method, system, equipment and readable storage medium. Background technique [0002] Collapsible loess is a kind of silt with large pores and weak cementation, which has the characteristics of a sharp decrease in strength after being exposed to water, causing excessive deformation; generally, the collapsible loess layer with a thickness greater than or equal to 20m below the base is called large Thick collapsible loess strata. Accurately predicting the ground deformation during the construction of subway tunnels in large-thickness collapsible loess strata can not only ensure the safety of tunnel construction, but also save resources and reduce energy consumption. Tunnel excavation will cause stress redistribution in the soil around the tunnel, and then induce stratum movement and deformation. Compared with the general c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/20G06Q10/04G06Q50/26
CPCG06F30/13G06F30/20G06Q10/04G06Q50/26
Inventor 黄俊党康宁何俊昊张昕田正兰
Owner XI'AN PETROLEUM UNIVERSITY
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