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A soil-rock interbedded embankment structure and its design method

A design method and technology for interbedded rock, applied in the field of embankment structure and design of interbedded soil and rock, can solve the problems of difficulty in controlling the settlement of interbedded soil, not applicable to settlement calculation, and difficult to calculate settlement of interbedded soil. , to achieve the effect of being conducive to the stability of use, less construction tasks, and light weight

Active Publication Date: 2022-05-03
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a soil-rock interbed embankment structure in view of the problem that the newly built embankment will cause the subsidence of the soil-rock interbed foundation to be difficult to control when building an embankment on the soil-rock interbed in the prior art;
[0005] Aiming at the problem that the traditional settlement deformation design method is not suitable for the settlement calculation when building embankments on soil-rock interbed foundations, and it is difficult to calculate the settlement of soil-rock interbed foundations, a design method for soil-rock interbed embankment structures is provided

Method used

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  • A soil-rock interbedded embankment structure and its design method
  • A soil-rock interbedded embankment structure and its design method
  • A soil-rock interbedded embankment structure and its design method

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Embodiment 1

[0061] This embodiment provides a soil-rock interbedded embankment structure, see Figure 1-3 , located on the soil-rock interbed foundation, the soil-rock interbed foundation includes the first soil layer foundation 4, the rock layer 6 and the second soil layer foundation 7 from top to bottom; the soil-rock interbed embankment structure includes channel members 1. The opening of the channel member 1 faces upward, and the bottom of the channel member 1 is placed on the surface of the first soil layer foundation 4 or in the first soil layer foundation 4, and the inside of the channel member 1 is from The lightweight concrete layer 2 and the surface structure 3 are filled sequentially from bottom to top, and the surface structure 3 is used to protect the lightweight concrete layer 2 .

[0062] The channel member 1, the lightweight concrete layer 2 and the surface structure 3 are all arranged longitudinally along the road, and the two sides of the surface structure 3 are respecti...

Embodiment 2

[0067] This embodiment provides a design method of the soil-rock interlayer embankment structure as described in Embodiment 1. The soil-rock interlayer includes the first soil layer foundation 4, the rock layer 6 and the second soil layer foundation from top to bottom 7;

[0068] Also includes the following steps:

[0069] A. Obtain the thickness d of rock layer 6 through numerical simulation and field test 2 To the thickness influence coefficient ζ of additional stress, obtain the fragmentation degree influence coefficient η of the degree of fragmentation of the additional stress to the degree of fragmentation of the rock layer 6;

[0070] In step A, in the process of numerical simulation and field test, control the thickness of rock layer 6 or control the fragmentation degree of rock layer 6, and make statistics: the additional stress at the top of the second soil layer foundation 7 under the influence of no rock layer 6, with The additional stress on the top of the second...

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Abstract

The invention provides an earth-rock interbed embankment structure and a design method thereof. A soil-rock interbedded embankment structure according to the present invention is set on a soil-rock interbedded foundation, and the soil-rock interbedded foundation includes a first soil layer foundation, a rock layer and a second soil layer foundation from top to bottom; The earth-rock interlayer embankment structure includes a channel member, the opening of the channel member faces upwards, the bottom of the channel member is placed on the surface of the first soil layer foundation or in the first soil layer foundation, and the groove The profile member is filled with a lightweight concrete layer and a surface structure sequentially from bottom to top, and the surface structure is used to protect the lightweight concrete layer. Its structure is simple, it only needs to be constructed on the first soil layer foundation, and it can also satisfy the control of the settlement of the soil-rock interlayer foundation. Better reduce the settlement of the foundation.

Description

technical field [0001] The invention relates to the technical field of embankment construction, in particular to an earth-rock interbedded embankment structure and a design method thereof. Background technique [0002] When building high-speed railways in volcanic eruption areas, we often encounter soil-rock interbedded foundations. Soil-rock interbedded foundations refer to soil-layer foundations, rock layers, and soil-layer foundations from top to bottom. This staggered soil Interbedded rock foundations are formed by long-term accumulation of volcanic eruptions in different time periods. When building a ballastless track high-speed railway embankment project on this soil-rock interlayer foundation, what measures to use to reinforce the soil foundation and how to design the foundation settlement deformation are two major technical problems that need to be solved. Under such soil-rock interbedded foundation conditions, it is difficult for traditional composite foundation re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B2/00E01B1/00E02D27/14G06F30/13
CPCE01B2/00E01B2/006E01B1/00E02D27/14G06F30/13
Inventor 姚裕春谢毅罗照新周成袁志刚封志军吴沛沛李宁张东卿袁碧玉
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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