JP5325318B2 - Road embankment reinforcement method - Google Patents

Road embankment reinforcement method Download PDF

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JP5325318B2
JP5325318B2 JP2012137963A JP2012137963A JP5325318B2 JP 5325318 B2 JP5325318 B2 JP 5325318B2 JP 2012137963 A JP2012137963 A JP 2012137963A JP 2012137963 A JP2012137963 A JP 2012137963A JP 5325318 B2 JP5325318 B2 JP 5325318B2
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embankment
reinforcing
reinforcement
shoulder
road
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JP2012177298A (en
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尚希 竜田
俊晴 西本
賢一 常田
和広 小田
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Maeda Kosen Co Ltd
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Description

本発明は、上面に舗装道路を敷設する盛土の補強方法に関するものである。   The present invention relates to a method for reinforcing embankments in which a paved road is laid on the upper surface.

従来、上面に舗装道路を敷設する盛土の補強構造は、図７に示すように、舗装道路の下方の盛土１全面に、高さ方向に所定の間隔を持って盛土補強材１２を埋設して補強盛土とし、その上部に路盤２４及び硬質舗装層２２と、を積層して舗装道路２を構成している。   Conventionally, the embankment reinforcement structure in which the paved road is laid on the upper surface is formed by embedding embankment reinforcements 12 at predetermined intervals in the height direction on the entire embankment 1 below the paved road, as shown in FIG. The pavement 2 is configured by stacking the roadbed 24 and the hard pavement layer 22 on the upper part of the reinforced embankment.

しかし、従来の盛土上に敷設する舗装道路の補強構造には以下の問題があった。
＜１＞地震や台風、豪雨等の災害時に、崩壊した舗装道路を復旧する際には、舗装道路の下部の盛土全面を掘削しなければならないため、復旧に時間がかかる。
＜２＞既設道路を補強するためには、舗装道路の下部の盛土全面を掘削しなければならないため、道路交通が遮断されてしまう。また、施工期間も長く、施工コストも高くなってしまう。 However, the conventional reinforcement structure for paved roads laid on embankments has the following problems.
<1> When restoring a collapsed paved road in the event of an earthquake, typhoon, heavy rain, etc., the entire embankment below the paved road must be excavated, which requires time.
<2> In order to reinforce the existing road, it is necessary to excavate the entire embankment below the paved road, and the road traffic is blocked. In addition, the construction period is long and the construction cost becomes high.

本発明の目的は、低コストで、短工期に行う事が出来る、上面に舗装道路を敷設する盛土の補強方法を提供することを目的とする。   An object of the present invention is to provide a method for reinforcing embankments in which a paved road is laid on the upper surface, which can be performed at a low cost and in a short construction period.

上記目的を達成するためになされた本願の第１発明は、舗装道路の路盤部に補強材を敷設して形成する路盤補強部と、前記路盤補強部の下方であって、前記盛土の両側の法肩から所定範囲の下方の盛土を補強して形成する法肩補強部と、前記路盤補強部と、一方の前記法肩補強部と、他方の前記法肩補強部とにより囲まれた前記舗装道路の下方の盛土とを有し、前記路盤補強部の両側に、一方の前記法肩補強部と、他方の前記法肩補強部とを一体に結合し、前記路盤補強部と法肩補強部とにより前記舗装道路下方の盛土を包持して拘束するようにした道路盛土の補強方法であって、盛土の法肩から前記法肩補強部の形成範囲の下方の盛土を掘削する工程と、掘削した範囲に前記法肩補強部を形成する工程と、前記法肩補強部の上に前記路盤補強部を形成する工程と、前記法肩補強部と路盤補強部とを一体に結合する工程と、前記路盤補強部の上に硬質舗装層を形成する工程とを含み、前記した一連の工程を舗装道路の片側を維持したまま施工することを特徴とする、道路盛土の補強方法を提供するものである。
本願の第２発明は、第１発明の道路盛土の補強方法において、前記法肩補強部は、前記盛土内に敷設した前記補強材を法面側で巻き返して盛土を包み込んで形成した法面補強層を複数層積層して形成することを特徴とする、道路盛土の補強方法を提供するものである。
本願の第３発明は、第２発明の道路盛土の補強方法において、積層する前記法面補強層の、下層側の法面補強層の上面の補強材と、上層側の法面補強層の下面の補強材とを、連結材により連結することを特徴とする、道路盛土の補強方法を提供するものである。
本願の第４発明は、第２発明の道路盛土の補強方法において、前記法面補強層を貫通し、前記補強材に接続する縫合体を有することを特徴とする、道路盛土の補強方法を提供するものである。
本願の第５発明は、第１発明の道路盛土の補強方法において、連続する補強材によって盛土を包み込んで前記路盤補強部と前記法肩補強部とを一体に形成し、前記法肩補強部の法面側の補強材と、盛土側の補強材とを、拘束材によって拘束することを特徴とする、道路盛土の補強方法を提供するものである。 The first invention of the present application made to achieve the above object is a roadbed reinforcing part formed by laying a reinforcing material on a roadbed part of a paved road, below the roadbed reinforcing part, on both sides of the embankment The pavement surrounded by the shoulder reinforcement part formed by reinforcing the embankment below a predetermined range from the shoulder, the road base reinforcement part, the one shoulder reinforcement part, and the other shoulder reinforcement part And a road shoulder reinforcement portion, and one of the shoulder reinforcement portions and the other shoulder reinforcement portion are integrally coupled to both sides of the roadbed reinforcement portion, and the roadbed reinforcement portion and the shoulder reinforcement portion are combined. A method for reinforcing the road embankment by enclosing and restraining the embankment below the paved road, and a step of excavating the embankment below the formation area of the fore shoulder reinforcement portion from the embankment shoulder; Forming the shoulder reinforcement portion in the excavated area; and Paving the above-described series of steps, including a step of forming a portion, a step of integrally coupling the shoulder reinforcement portion and the roadbed reinforcing portion, and a step of forming a hard pavement layer on the roadbed reinforcing portion. The present invention provides a method for reinforcing a road embankment, wherein construction is performed while maintaining one side of the road.
The second invention of the present application is the method of reinforcing a road embankment according to the first invention, wherein the shoulder reinforcement portion is formed by wrapping the embankment by winding up the reinforcing material laid in the embankment on the slope side. The present invention provides a method for reinforcing a road embankment, characterized by forming a plurality of layers.
The third invention of the present application is the road embankment reinforcing method according to the second invention, wherein the reinforcing material on the upper surface of the lower surface side reinforcing layer and the lower surface of the upper surface side reinforcing layer of the slope reinforcing layer to be laminated. A reinforcing method for road embankment is provided, wherein the reinforcing material is connected to each other by a connecting material.
According to a fourth aspect of the present invention, there is provided the method for reinforcing a road embankment according to the second aspect of the present invention, wherein the road embankment includes a stitching body that penetrates the slope reinforcement layer and is connected to the reinforcing material. To do.
According to a fifth aspect of the present invention, in the road embankment reinforcement method of the first invention, the road base reinforcement portion and the shoulder reinforcement portion are integrally formed by wrapping the embankment with a continuous reinforcement material, The present invention provides a method for reinforcing road embankment, characterized by restraining a slope-side reinforcing material and a bank-side reinforcing material with a restraining material.

本発明は、上記した課題を解決するための手段により、次のような効果の少なくとも一つを得ることができる。
＜１＞補強を行うのは、盛土の全面ではなく、路盤部と盛土の法肩から所定範囲の下方の盛土のみであるため、低コストで、短工期に施工を行うことができる。
＜２＞路盤部と、盛土の法肩の下方のみを掘削して補強するため、既設道路を補強する際にも、低コストで、短工期に施工を行うことができる。
＜３＞路盤補強部と、法肩補強部とによって内部の盛土を包持して、地震時の盛土の変位を制限することができる。このため、盛土全面を補強した場合と同様の効果を得ることができる。 The present invention can obtain at least one of the following effects by means for solving the above-described problems.
<1> Reinforcement is not performed on the entire surface of the embankment, but only on the embankment below a predetermined range from the roadbed portion and the shoulder of the embankment. Therefore, construction can be performed at a low cost and in a short construction period.
<2> Since only the roadbed and the lower shoulder of the embankment are excavated and reinforced, the existing road can be reinforced at a low cost and in a short construction period.
<3> By embedding the internal embankment by the roadbed reinforcement and the shoulder reinforcement, the displacement of the embankment during an earthquake can be limited. For this reason, the same effect as the case where the whole embankment is reinforced can be acquired.

上面に舗装道路を敷設する盛土の補強構造の説明図Illustration of embankment reinforcement structure laying paved road on top 法肩補強部の説明図Illustration of the shoulder reinforcement 両側に法肩部を有する道路盛土の補強構造の説明図Illustration of reinforcing structure for road embankment with shoulders on both sides 道路盛土の補強構造の説明図Illustration of reinforcement structure for road embankment 既設の道路盛土の補強方法の説明図Illustration of existing road embankment reinforcement method 上面に舗装道路を敷設する盛土の補強構造の説明図Illustration of embankment reinforcement structure laying paved road on top 従来の舗装道路を敷設する盛土の補強構造の説明図Explanatory drawing of reinforcement structure of embankment laying conventional paved road

以下、図面を参照しながら本発明の実施の形態について説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

［１］補強構造の概要
道路盛土の補強構造は、上面に舗装道路２を敷設する盛土１の補強構造である。
補強構造は、盛土１の法肩Ａの下方の所定範囲を補強して形成する法肩補強部１１と、舗装道路２の下部の路盤補強部２１と、により構成する。（図１）
以下、各構成について詳述する。 [1] Outline of reinforcement structure The reinforcement structure of the road embankment is a reinforcement structure of the embankment 1 in which the paved road 2 is laid on the upper surface.
The reinforcing structure includes a shoulder reinforcing portion 11 formed by reinforcing a predetermined range below the shoulder A of the embankment 1, and a roadbed reinforcing portion 21 below the paved road 2. (Figure 1)
Hereinafter, each configuration will be described in detail.

＜１＞盛土
舗装道路２の下方の盛土１は、流用土や採取土を台形状に転圧して形成する。
盛土１の法肩Ａから所定範囲の下方に、盛土１の法面に沿って、法肩補強部１１を形成する。
盛土１の法面は、コンクリート等により形成した擁壁ブロック等により構成する。 <1> Embankment The embankment 1 below the paved road 2 is formed by rolling diversion soil or collected soil into a trapezoidal shape.
A shoulder reinforcement portion 11 is formed along the slope of the embankment 1 below the predetermined range from the shoulder A of the embankment 1.
The slope of the embankment 1 is constituted by a retaining wall block formed of concrete or the like.

＜２＞法肩補強部
法肩補強部１１は、盛土１内の高さ方向に所定の間隔で盛土補強材１２を埋設して形成する。
盛土補強材１２には、ジオグリッドやジオテキスタイルなどの可撓性を有する公知の部材が利用できる。
盛土補強材１２は法面側で巻き返して盛土１を包み込み、法面補強層１１１を形成する。
法面補強層１１１を複数層積層して、法肩補強部１１を形成する。
積層する法面補強層１１１ａ、１１１ｂの、下側の法面補強層１１１ａの上面の盛土補強材１２ａと、上側の法面補強層１１１ｂの下面の盛土補強材１２ｂを、樹脂、繊維、鋼線等からなるロープ材やテープ材である連結材１３によって連結する。このように、上下に接する盛土補強材１２を連結材１３で結合して、積層する複数の法面補強層１１１が一体となって、法肩補強部１１を形成する。（図２）
連結材１３は、樹脂、繊維、鋼線等からなるロープ材やテープ材により構成する。 <2> Method shoulder reinforcement part The method shoulder reinforcement part 11 embeds the embankment reinforcement 12 in the height direction in the embankment 1 at predetermined intervals, and forms it.
As the embankment reinforcing material 12, a known member having flexibility such as a geogrid or a geotextile can be used.
The embankment reinforcing material 12 is rolled back on the slope side to wrap the embankment 1 and form a slope reinforcement layer 111.
A plurality of slope reinforcing layers 111 are stacked to form the shoulder reinforcing portion 11.
The embankment reinforcing material 12a on the upper surface of the lower surface reinforcing layer 111a and the embankment reinforcing material 12b on the lower surface of the upper surface reinforcing layer 111b of the laminated surface reinforcing layers 111a and 111b are made of resin, fiber, steel wire. It connects with the connection material 13 which is a rope material and tape materials which consist of etc. Thus, the embankment reinforcing material 12 which touches up and down is couple | bonded by the connection material 13, and the several slope reinforcing layer 111 laminated | stacked forms the shoulder reinforcement part 11 integrally. (Figure 2)
The connecting material 13 is composed of a rope material or a tape material made of resin, fiber, steel wire or the like.

また、法面補強層１１１の複数箇所を貫通するように、縫合体１４により上面と下面の盛土補強材１２を縫合してもよい。
縫合体１４は、樹脂、繊維、鋼線等の可撓性と非伸縮性を有する素材からなるロープ材又はテープ材により構成する。
縫合体１４は、積層する法面補強層１１１の複数層に亘って貫通し、上下を盛土補強材１２と接続してもよい。 Further, the embankment reinforcing material 12 on the upper surface and the lower surface may be sewn by the suture body 14 so as to penetrate a plurality of portions of the slope reinforcing layer 111.
The suture body 14 is made of a rope material or a tape material made of a material having flexibility and non-stretchability, such as resin, fiber, and steel wire.
The suture body 14 may penetrate through a plurality of layers of the slope reinforcing layer 111 to be laminated, and the upper and lower sides may be connected to the embankment reinforcing material 12.

＜３＞舗装道路
舗装道路２は、盛土１上に敷設するものである。
舗装道路２は、路盤補強部２１と、路盤補強部２１の上部に位置する硬質舗装層２２と、により構成する。
硬質舗装層２２は、アスファルトやコンクリートからなる。 <3> Paved road The paved road 2 is laid on the embankment 1.
The paved road 2 is constituted by a roadbed reinforcing part 21 and a hard pavement layer 22 positioned on the upper part of the roadbed reinforcing part 21.
The hard pavement layer 22 is made of asphalt or concrete.

＜４＞路盤補強部
路盤補強部２１は、舗装道路２の路盤部に、補強材２３を埋設して形成したものである。
路盤部は、砕石を転圧して形成する。
補強材２３は盛土補強材１２と同様に、ジオグリッドやジオテキスタイルなどの可撓性を有する公知の部材が利用できる。補強材２３は、高さ方向に所定の間隔で複数枚埋設したり、連続する補強材２３によって路盤部を巻き込むように包持したりすることによって、路盤補強部２１を形成する。
法肩付近の補強材２３は、法肩補強部１１の盛土補強材１２と連続一体となるように配置したり、重合させて連結材１３で結合したりすることにより、路盤補強部２１と法肩補強部１１を一体とする。 <4> Roadbed Reinforcement Section The roadbed reinforcement section 21 is formed by embedding a reinforcing material 23 in the roadbed section of the paved road 2.
The roadbed is formed by rolling crushed stone.
As the reinforcing material 23, a known member having flexibility such as a geogrid or a geotextile can be used similarly to the embankment reinforcing material 12. A plurality of the reinforcing members 23 are embedded at a predetermined interval in the height direction, or are wrapped so that the road base portion is wound around by the continuous reinforcing members 23 to form the road base reinforcing portion 21.
The reinforcing material 23 in the vicinity of the shoulder is disposed so as to be continuously integrated with the embankment reinforcing material 12 of the shoulder reinforcing portion 11, or is superposed and coupled with the connecting material 13, so The shoulder reinforcement portion 11 is integrated.

＜５＞道路盛土の補強構造
上記のように形成することにより、路盤補強部２１と、法肩補強部１１とが一体となり、内部の盛土１を包持して拘束するため、地震時の舗装道路２のすべり破壊を防止し、変位が制限される。
このため、舗装道路２の下部全面に補強盛土を形成した場合と同様の効果を得ることができる。 <5> Reinforcement structure of road embankment By forming as described above, the roadbed reinforcement portion 21 and the shoulder reinforcement portion 11 are integrated, and the inner embankment 1 is held and restrained. The slippage of the road 2 is prevented and the displacement is limited.
For this reason, the same effect as the case where the reinforcement embankment is formed in the whole lower part of the paved road 2 can be acquired.

両側に法肩Ａを有する盛土の場合には、両側に法肩補強部１１を形成する。
このように構成することにより、内部の盛土１は両側の法肩補強部１１と、上部の路盤補強部２１によって包持（抱持）されることとなるため、より強固な構造とすることができる。（図３）
また、例えば斜面に面して盛土を構築した場合のように、片側の法肩Ａに形成した法肩補強部１１と路盤補強部２１とによって、内部の盛土１を包持するようにしてもよい。（図１） In the case of the embankment having the shoulder A on both sides, the shoulder reinforcing portions 11 are formed on both sides.
By configuring in this way, the internal embankment 1 is held (held) by the shoulder reinforcements 11 on both sides and the roadbed reinforcement 21 on the upper side, so that a stronger structure can be obtained. it can. (Figure 3)
Further, as in the case where the embankment is constructed facing the slope, for example, the embankment 1 inside is embedded by the shoulder reinforcement part 11 and the roadbed reinforcement part 21 formed on the shoulder A on one side. Good. (Figure 1)

この補強構造は、盛土１の法肩から下方の所定範囲に形成する法肩補強部１１と、盛土１上部に形成する路盤補強部２１とにより構成するため、低コストで構築することができる。
また、地震や台風、豪雨等の災害時に崩落するのは専ら盛土１の法面側であるが、本発明においては法肩から下方の所定範囲に法肩補強部１１を形成するため、地震や降雨などの際の盛土１のすべり線（Ｂ）が盛土１内部（Ｃ）に移動する。これによって、盛土１のすべり変形を抑止することができるため、舗装道路２の下部全面の盛土１を補強した場合と同等の補強効果を得ることができる。（図４） Since this reinforcement structure is comprised by the shoulder reinforcement part 11 formed in the predetermined range below from the shoulder of the embankment 1 and the roadbed reinforcement part 21 formed in the embankment 1 upper part, it can be constructed | assembled at low cost.
In addition, it is only the slope side of the embankment 1 that collapses in the event of a disaster such as an earthquake, typhoon, or heavy rain. However, in the present invention, the shoulder reinforcement portion 11 is formed in a predetermined range below the shoulder, The slip line (B) of the embankment 1 at the time of rainfall or the like moves to the inside (C) of the embankment 1. Thereby, since the slip deformation of the embankment 1 can be suppressed, a reinforcing effect equivalent to the case where the embankment 1 on the entire lower surface of the paved road 2 is reinforced can be obtained. (Fig. 4)

［２］道路盛土の補強方法
次に、盛土１上に敷設する舗装道路２の補強方法について説明する。 [2] Method of reinforcing road embankment Next, a method of reinforcing the paved road 2 laid on the embankment 1 will be described.

両側に法肩を有する既設の舗装道路２の盛土１を補強する場合には、一方の法肩側の、法肩補強部１１を形成する範囲のみを掘削して、法肩補強部１１を形成する。その後、構築する舗装道路２の下部に路盤補強部２１を構築し、その上部に硬質舗装層２２を構築する。（図５Ａ）
そして、片側の施工が終了した後に、もう一方の法肩側の、盛土補強部１１を形成する範囲のみを掘削して、盛土補強部１１を形成し、その上部に路盤補強部２１、硬質舗装層２２を構築することによって、舗装道路２が構築する。（図５Ｂ）
舗装道路２全面を掘削するのではなく、補強する側の法肩部から所定範囲のみを掘削するため、既設の舗装道路２の片側は維持したまま施工でき、施工期間中であっても片側通行を確保することができる。 When reinforcing the embankment 1 of the existing paved road 2 having the shoulders on both sides, only the area where the shoulder reinforcement portion 11 is formed on one shoulder side is excavated to form the shoulder reinforcement portion 11. To do. Then, the roadbed reinforcement part 21 is constructed in the lower part of the paved road 2 to be constructed, and the hard pavement layer 22 is constructed in the upper part. (FIG. 5A)
Then, after the construction on one side is completed, only the area on the other shoulder side where the embankment reinforcement portion 11 is formed is excavated to form the embankment reinforcement portion 11, and the roadbed reinforcement portion 21 and the hard pavement are formed on the upper portion thereof. By building the layer 22, the paved road 2 is built. (Fig. 5B)
Rather than excavating the entire surface of the paved road 2, only a predetermined area is excavated from the shoulder on the reinforcing side, so it can be constructed while maintaining one side of the existing paved road 2, and one-way traffic even during the construction period Can be secured.

［その他実施例］
上記実施例は盛土１中に補強部１１及び路盤補強部２１に盛土補強材１２や補強材２３を埋設して法肩補強部１１及び路盤補強部２１を形成したが、法肩補強部１１と路盤補強部２１とが一体となるように、連続する補強材２３によって両補強部の外周を包み込むように埋設して形成することもできる。（図６）
この際、法肩補強部１１の外周に位置する補強材２３のうち、法面側の補強材２３ａと盛土側の補強材２３ｂとを、拘束材１５によって拘束する。拘束材１５には、樹脂、繊維、鋼線等の可撓性と非伸縮性を有する素材からなるロープ材又はテープ材が利用できる。
拘束材１５によって法肩補強部１１の補強材２３を内部から拘束することによって、法肩補強部１１の下方で崩落が起こった際にも、法肩補強部１１の変形が抑止され、上面に敷設された舗装道路２の交通を維持することができる。 [Other Examples]
In the above example, the embankment 1 and the roadbed reinforcement 21 are embedded in the embankment 1 with the embankment reinforcement 12 and the reinforcement 23 to form the shoulder reinforcement 11 and the roadbed reinforcement 21. It can also be formed by being embedded so as to wrap around the outer periphery of both reinforcing portions with a continuous reinforcing material 23 so that the roadbed reinforcing portion 21 is integrated. (Fig. 6)
At this time, the reinforcing material 23 a on the slope side and the reinforcing material 23 b on the embankment side are restrained by the restraining material 15 among the reinforcing materials 23 positioned on the outer periphery of the slope shoulder reinforcing portion 11. As the restraining material 15, a rope material or a tape material made of a material having flexibility and non-stretchability such as resin, fiber, and steel wire can be used.
By restraining the reinforcing member 23 of the shoulder reinforcing portion 11 from the inside by the restraining material 15, even when a collapse occurs below the shoulder reinforcing portion 11, the deformation of the shoulder reinforcing portion 11 is suppressed, and the upper surface is Traffic on the paved road 2 that has been laid can be maintained.

１ 盛土
１１ 法肩補強部
１１１ 法面補強層
１２ 盛土補強材
１３ 連結材
１４ 縫合体
１５ 拘束材
２ 舗装道路
２１ 路盤補強部
２２ 硬質舗装層
２３ 補強材 DESCRIPTION OF SYMBOLS 1 Embankment 11 Shoulder reinforcement part 111 Slope reinforcement layer 12 Embankment reinforcement 13 Connection material 14 Suture 15 Restraint material 2 Pavement road 21 Subbase reinforcement part 22 Hard pavement layer 23 Reinforcement material

Claims (5)

舗装道路の路盤部に補強材を敷設して形成する路盤補強部と、前記路盤補強部の下方であって、前記盛土の両側の法肩から所定範囲の下方の盛土を補強して形成する法肩補強部と、前記路盤補強部と、一方の前記法肩補強部と、他方の前記法肩補強部とにより囲まれた前記舗装道路の下方の盛土とを有し、前記路盤補強部の両側に、一方の前記法肩補強部と、他方の前記法肩補強部とを一体に結合し、前記路盤補強部と法肩補強部とにより前記舗装道路下方の盛土を包持して拘束するようにした道路盛土の補強方法であって、
盛土の法肩から前記法肩補強部の形成範囲の下方の盛土を掘削する工程と、
掘削した範囲に前記法肩補強部を形成する工程と、
前記法肩補強部の上に前記路盤補強部を形成する工程と、
前記法肩補強部と路盤補強部とを一体に結合する工程と、
前記路盤補強部の上に硬質舗装層を形成する工程とを含み、
前記した一連の工程を舗装道路の片側を維持したまま施工することを特徴とする、
道路盛土の補強方法。 A roadbed reinforcing part formed by laying a reinforcing material on the roadbed part of the paved road, and a method of reinforcing the lower bank below the roadbed reinforcing part and below the predetermined range from the shoulders on both sides of the banking A shoulder reinforcement portion, the roadbed reinforcement portion, one of the shoulder reinforcement portions, and an embankment below the paved road surrounded by the other shoulder reinforcement portion, on both sides of the roadbed reinforcement portion In addition, the one shoulder reinforcement portion and the other shoulder reinforcement portion are integrally coupled, and the embankment below the paved road is held and restrained by the roadbed reinforcement portion and the shoulder reinforcement portion. A method for reinforcing road embankment,
Excavating the embankment below the formation area of the shoulder reinforcement from the embankment shoulder;
Forming the shoulder reinforcement portion in the excavated area;
Forming the roadbed reinforcing portion on the shoulder reinforcing portion;
A step of integrally coupling the shoulder reinforcement portion and the roadbed reinforcement portion;
Forming a hard pavement layer on the roadbed reinforcing part,
It is characterized by constructing the above-described series of processes while maintaining one side of the paved road,
How to reinforce road embankments. 請求項１に記載の道路盛土の補強方法において、前記法肩補強部は、前記盛土内に敷設した前記補強材を法面側で巻き返して盛土を包み込んで形成した法面補強層を複数層積層して形成することを特徴とする、道路盛土の補強方法。   The road embankment reinforcement method according to claim 1, wherein the shoulder reinforcement portion is formed by laminating a plurality of slope reinforcement layers formed by winding the reinforcement material laid in the embankment on the slope side so as to wrap the embankment. A method for reinforcing road embankment, characterized in that it is formed as a result. 請求項２に記載の道路盛土の補強方法において、積層する前記法面補強層の、下層側の法面補強層の上面の補強材と、上層側の法面補強層の下面の補強材とを、連結材により連結することを特徴とする、道路盛土の補強方法。   The reinforcing method for road embankment according to claim 2, wherein the reinforcing material on the upper surface of the lower surface side reinforcing layer and the reinforcing material on the lower surface of the upper surface side reinforcing layer of the slope reinforcing layer to be laminated are: A method for reinforcing a road embankment, characterized by being connected by a connecting material. 請求項２に記載の道路盛土の補強方法において、前記法面補強層を貫通し、前記補強材に接続する縫合体を有することを特徴とする、道路盛土の補強方法。   The road embankment reinforcement method according to claim 2, further comprising a suture body that penetrates the slope reinforcement layer and is connected to the reinforcement member. 請求項１に記載の道路盛土の補強方法において、連続する補強材によって盛土を包み込んで前記路盤補強部と前記法肩補強部とを一体に形成し、前記法肩補強部の法面側の補強材と、盛土側の補強材とを、拘束材によって拘束することを特徴とする、道路盛土の補強方法。   The road embankment reinforcement method according to claim 1, wherein the road base reinforcement portion and the shoulder reinforcement portion are integrally formed by wrapping the embankment with a continuous reinforcement material, and reinforcing the slope side of the shoulder reinforcement portion. A method for reinforcing road embankment, characterized in that the material and the reinforcing material on the embankment side are restrained by a restraining material.
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