Embankment structure, construction method, and bagged composite structure

JP2026095872APending Publication Date: 2026-06-12RAILWAY TECHNICAL RESEARCH INSTITUTE +4

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
RAILWAY TECHNICAL RESEARCH INSTITUTE
Filing Date
2024-12-02
Publication Date
2026-06-12

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【0035】 本発明によれば、施工性及び耐久性の両立を図ることができる盛土構造を提供することができる。

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Abstract

To simplify the construction of structures. [Solution] An embankment structure comprising a bag body, a filling material filled inside the bag body, a bag body formwork, an embankment material provided inside the bag body formwork, and a reinforcing member, wherein the reinforcing member comprises a first portion provided inside the bag body and fixed by the filling material, and a second portion fixed to the embankment material.
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Claims

[Claim 1] It is an embankment structure, A bag mold comprising a bag body and a filling material to be filled inside the bag body, The embankment material provided inside the aforementioned bag-shaped formwork, Equipped with reinforcing materials, The aforementioned reinforcing material is A first portion provided inside the bag and fixed by the filling material, A second portion which is fixed to the embankment material, Embankment structure. [Claim 2] The aforementioned reinforcing material comprises geotextile, The bag comprises a first facing material that forms one side of the bag on the embankment material side, and a second facing material that forms the bottom surface of the bag. The embankment structure according to claim 1, wherein the first facing material and the second facing material are joined together at the joint, and the first facing material, the second facing material, and the geotextile are integrally joined together. [Claim 3] The bag body comprises a third facing material that constitutes the upper surface of the bag body, The embankment structure according to claim 2, wherein the first panel and the third panel are joined together at another joint, and the first panel and the third panel and the geotextile are integrally joined together. [Claim 4] Equipped with additional drainage materials, The embankment structure according to claim 2 or 3, wherein the drainage material is provided between the first facing material and the embankment material, adjacent to the portion of the bag body in the first facing material where the geotextile is not joined. [Claim 5] Multiple embankment layers are stacked vertically, each comprising the aforementioned bag-shaped formwork, the aforementioned embankment material, and the aforementioned geotextile. The embankment structure according to claim 4, further comprising: a rigid wall made of sprayed concrete, provided on the side of the bag-shaped formwork on the opposite side of the embankment material for a plurality of embankment layers. [Claim 6] The rigid wall is further provided with a drainage pipe that penetrates it, The embankment structure according to claim 5, wherein one of the drainage pipes is connected to one of the drainage materials provided in common to a plurality of embankment layers. [Claim 7] The reinforcing material comprises a rod-shaped reinforcing material, The bag body comprises a first facing material that constitutes one side of the bag body on the embankment material side, a second facing material that constitutes the other side of the bag body on the opposite side of the embankment material, and a cylindrical facing material that constitutes a sleeve that penetrates from the first facing material to the second facing material. The embankment structure according to claim 1, wherein the rod-shaped reinforcing member is inserted through the sleeve. [Claim 8] The embankment structure according to any one of claims 1 to 3 or 7, wherein the embankment material is fluidized soil. [Claim 9] The embankment structure according to claim 4, wherein the embankment material is fluidized soil. [Claim 10] A construction method for embankment structures, The bag and reinforcing material are to be placed at the planned construction site of the aforementioned embankment structure, By filling the inside of the bag with a filler material, the first portion of the reinforcing material is fixed by the filler material to form a bag-shaped mold. The method involves pouring embankment material inside the aforementioned bag-shaped formwork to form an embankment layer in which the second portion of the reinforcing material is fixed to the embankment material. Construction method. [Claim 11] The reinforcing material comprises a geotextile having the first portion and the second portion, The bag body comprises a first facing material that constitutes one side surface of the bag body on the side where the embankment material is poured, and a second facing material that constitutes the bottom surface of the bag body. In the joint where the first panel and the second panel are joined, the first panel, the second panel, and the geotextile are integrally joined. The aforementioned construction method is, The process includes unfolding the second portion of the geotextile inside the bag-shaped formwork before pouring the embankment material, The construction method according to claim 10, wherein the embankment material is placed on the second portion of the geotextile. [Claim 12] The drainage pipe is positioned so that it faces from the inside to the outside of the aforementioned bag-shaped frame, The construction method according to claim 11, further comprising: before pouring the embankment material, placing drainage material adjacent to the portion of the first facing material of the bag body in which the geotextile is not joined, and connecting the drainage material to the drainage pipe via a conversion tee. [Claim 13] In developing the aforementioned geotextile, The support column is placed adjacent to the end of the second portion of the geotextile, The construction method according to claim 11, further comprising fixing the end portion to the support column. [Claim 14] The process of forming the bag-shaped formwork and pouring the embankment material on the aforementioned embankment layer is repeated, thereby stacking other embankment layers. The construction method according to claim 11, further comprising spraying concrete onto multiple embankment layers from the side of the bag-shaped formwork on the opposite side of the embankment material to form a rigid wall. [Claim 15] The reinforcing material comprises a rod-shaped reinforcing material having the first portion and the second portion, The bag body comprises a first facing material that constitutes one side of the bag body on the side where the embankment material is poured, a second facing material that constitutes the other side of the bag body on the opposite side where the embankment material is poured, and a cylindrical facing material that constitutes a sleeve that penetrates from the first facing material to the second facing material. The aforementioned construction method is, In arranging the bag and the reinforcing material, the first portion of the rod-shaped reinforcing material is inserted into the sleeve. The construction method according to claim 10, wherein when pouring the embankment material, the embankment material is poured so as to embed the second portion of the rod-shaped reinforcing material. [Claim 16] The construction method according to any one of claims 10 to 15, wherein the embankment material is fluidized soil. [Claim 17] A bag-type composite used in bag-shaped formwork that constitutes an embankment structure, It comprises a bag and a geotextile, The bag body comprises a first facing material that constitutes one side surface of the bag body, a second facing material that constitutes the bottom surface of the bag body, and a third facing material that constitutes the top surface of the bag body. In the joint where the first panel and the second panel are joined, the first panel, the second panel, and the geotextile are integrally joined. In another joint where the second panel and the third panel are joined, the second panel, the third panel, and the geotextile are joined together as a single unit. bag complex.