JP2647564B2 - Construction method of reinforcing embankment and net basket for embankment - Google Patents
Construction method of reinforcing embankment and net basket for embankmentInfo
- Publication number
- JP2647564B2 JP2647564B2 JP3718891A JP3718891A JP2647564B2 JP 2647564 B2 JP2647564 B2 JP 2647564B2 JP 3718891 A JP3718891 A JP 3718891A JP 3718891 A JP3718891 A JP 3718891A JP 2647564 B2 JP2647564 B2 JP 2647564B2
- Authority
- JP
- Japan
- Prior art keywords
- embankment
- net
- slope
- reinforcing
- sand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明はネット状補強材を展張
補強してなる補強盛土の施工法および盛土の法面の形成
に用いる盛土用ネット篭に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a reinforcing embankment by extending and reinforcing a net-like reinforcing material and a net cage for embankment used for forming a slope of the embankment.
【０００２】[0002]
【発明が解決しようとする課題】近年、ジオテキスタイ
ル、あるいはジオグリッドなどと云われる繊維あるいは
プラスチックを用いたネット状補強材を展張補強してな
る補強盛土が広く実用化されている。In recent years, reinforcing embankments formed by expanding and reinforcing a net-like reinforcing material made of fiber or plastic called geotextile or geogrid have been widely put into practical use.
【０００３】一般にこの補強盛土を施工するには、盛土
土砂のまき出し、展圧、ネット状補強材の展張を行なう
と同時に、合成繊維あるいは合成樹脂製のネット状物の
土のう袋へ土砂を充填し、これを積上げ、法面を形成し
ていた。[0003] In general, in order to construct the reinforcing embankment, the embankment is unwound, expanded, and the net-like reinforcing material is expanded, and at the same time, the sandbag is filled into a sandbag made of a synthetic fiber or synthetic resin net. Then, these were piled up to form a slope.
【０００４】図６はネット状補強材および土のう袋を用
いた従来の補強盛土の１例を示すものである。この盛土
を施工するには地山面にネット状補強材１を展張し、法
面となすべき面に土砂を充填した土のう袋２を0.５〜1.
０ｍ程度の単位高さ(h) 積上げ法面を形成し、積上げた
土のう袋２の背後に単位高さまで土砂３をまき出し展圧
し、さきに展張したネット状補強材１の先端部を折返し
て積上げた土のう袋２を巻き込み、展圧した土砂３の上
に展張する。この単位高さ(h) の盛土を繰返して所期の
法面高さをもった盛土を施工していた。FIG. 6 shows an example of a conventional reinforcing embankment using a net-like reinforcing material and a sandbag. In order to construct this embankment, a net-like reinforcing material 1 is spread on the ground surface, and a sandbag 2 filled with earth and sand on a surface to be made into a slope is 0.5 to 1.
A unit height of about 0 m (h) A stacked slope is formed, sand and sand 3 are rolled out to the unit height behind the stacked sandbags 2 and spread, and the tip of the net-like reinforcing material 1 that has been expanded is folded back. The stacked sandbags 2 are rolled up and spread on the expanded sand 3. The embankment with this unit height (h) was repeated to construct the embankment with the expected slope height.
【０００５】土のう袋を使用すると急勾配の法面でも容
易に精度よく施工できる利点がある。しかし、土のう袋
への土砂の充填および積上げには多大の労力を必要とす
る。[0005] The use of sandbags has the advantage that construction can be easily and accurately performed even on steep slopes. However, filling and stacking of sandbags into sandbags requires a great deal of labor.
【０００６】例えば５０×３０×１０cmの袋に土砂を充
填し、積上げる作業は約（４０個／１人、１日）程度で
あり、土砂のまき出し展圧やネット状補強材の展張に比
べ著しく手間がかかり、工期の短縮、コスト低減の上で
障害となっていた。For example, the work of filling and stacking a bag of 50 × 30 × 10 cm with earth and sand is about (40 pieces / person, 1 day). It took much time and effort, and was an obstacle in shortening the construction period and reducing costs.
【０００７】この発明は上記問題点に着目しなされたも
のである。その目的は急勾配の法面を有する盛土であっ
ても作業性高く、法面を形成して盛土できる盛土の施工
法および盛土に際し作業性高く法面を形成できる盛土用
ネット篭を提案するにある。The present invention has been made in view of the above problems. Its purpose is to propose an embankment construction method that can form an embankment by forming a slope, and a net basket for embankment that can form an embankment with high workability when embankment is used, even if the embankment has a steep slope. is there.
【０００８】[0008]
【課題を解決するための手段】(1) の発明になる補強盛
土の施工法は、ネット状補強材を展張補強してなる補強
盛土の施工において、１側面および上面が開口したネッ
ト篭を盛土の法面となすべき位置に、開口反対側面を法
面に沿わせ配置し、開口した１側面および上面から盛土
土砂を投入し、この土砂を投入したネット篭を多段に積
上げ法面を形成することを特徴とする。(2) の発明にな
る盛土用ネット篭は盛土の施工に際し、法面となすべき
面に沿い配置し、土砂を投入して積上げ法面を形成する
ネット篭であり、１側面および上面が開口していること
を特徴とする。Means for Solving the Problems In the construction method of the reinforcing embankment according to the invention of (1), in the construction of a reinforcing embankment formed by extending and reinforcing a net-like reinforcing material, a net cage having one side and an upper surface opened is embanked. At the position to be the slope, the side opposite to the opening is arranged along the slope, the embankment is poured from the opened one side and the upper surface, and the net baskets filled with the sand are stacked in multiple stages to form a slope. It is characterized by the following. The embankment net basket according to the invention of (2) is a net basket which is arranged along a surface to be a slope when embankment is to be constructed, and is filled with earth and sand to form a piled slope. It is characterized by doing.
【０００９】[0009]
【実施例】図１はこの施工法で用いるネット篭４であ
り、正面板４−ａ、２つの側面板４−ｂ、底板４−ｃと
からなり、上面および背面は開口した略直方体形をな
し、正面板４−ａはやや内側に傾斜し側面板４−ｂより
僅か高く立上っている。このネット篭４は合成樹脂製網
目構造物であり、底板４−ｃを下して置き自立性を有す
る。FIG. 1 shows a net cage 4 used in this construction method, which comprises a front plate 4-a, two side plates 4-b, and a bottom plate 4-c. None, the front plate 4-a is inclined slightly inward and rises slightly higher than the side plate 4-b. The net cage 4 is a mesh structure made of a synthetic resin, and has a self-supporting property by being placed on the bottom plate 4-c.
【００１０】この補強盛土を施工するには図２のごと
く、盛土すべき地山面にネット状補強材１を基端部をア
ンカー５を打込み固定し展張する。その上に法面となす
べき位置に複数の前記ネット篭４を、正面板４−ａを法
面に沿わせ、開口背面を盛土内側となし、一列に連続し
て配置し、アンカー５をネット状補強材１を貫通して地
山に打込み固定する。地山面にまき出した土砂３を展圧
するとともに、ネット篭１内に、開口した背面および上
面からじょれん等を用い投入する。１段をなし配列した
ネット篭４への土砂の投入が終ったら更にその上に図３
のごとくネット篭４を法面に沿い配置して背面の土砂３
の展圧とネット篭４への投入を行なう。これを繰返して
３段積上げて単位高さ(h) となし、さきに地山面に展張
してあるネット状補強材１の先端部を折返しネット篭４
を巻込み、展圧した土砂３上に展張する。この単位高さ
の盛土を繰返し所期の法面高さをもった盛土の施工が完
了する。In order to construct this reinforcing embankment, as shown in FIG. 2, the net-like reinforcing material 1 is fixed to the ground surface to be embanked by driving the anchor 5 at the base end thereof. A plurality of the net cages 4 are arranged at positions where the slopes should be formed, the front plate 4-a is along the slopes, the back of the opening is the inside of the embankment, and the anchors 5 are connected in a row. It penetrates through the reinforcing material 1 and is fixed to the ground. The earth and sand 3 that has been spread on the ground surface is spread and pressed into the net basket 1 from the open rear surface and the upper surface using a spatula or the like. When the earth and sand are put into the net baskets 4 arranged in one stage and arranged, FIG.
Arrange the net basket 4 along the slope as if
And put it into the net basket 4. This is repeated to form a unit height (h) by stacking three steps, and the tip of the net-like reinforcing material 1 that has been spread on the ground surface is folded back to form a net basket 4.
And spread it on the extruded earth and sand 3. The embankment of this unit height is repeated to complete the embankment with the expected slope height.
【００１１】図４は施工法の別の実施例を示す。この実
施例はネット篭４として、硬質合成樹脂製で高剛性、高
強度、耐久性のものを用い、展張したネット状補強材１
をネット篭４の表面に巻込み被せることなく法面を構成
してなった盛土の施工例である。FIG. 4 shows another embodiment of the construction method. In this embodiment, the net cage 4 is made of a hard synthetic resin and has high rigidity, high strength, and durability.
This is an example of embankment construction in which a slope is formed without being wound around the surface of the net basket 4.
【００１２】この発明になるネット篭は、合成樹脂孔あ
きシートまたは孔あき板、合成樹脂ネット、金網ネッ
ト、あるいは合成樹脂孔あき枠体とネットとを組合せた
複合体等で構成される。少なくとも自立性があり、配置
した状態で開口した上面および背面から土砂を投入でき
るものでなくてはならない。ネット網目寸法は盛土する
土砂がこぼれ落ちない程度であり、底板は正面板より若
干粗目であってもよい。The net basket according to the present invention comprises a synthetic resin perforated sheet or perforated plate, a synthetic resin net, a wire mesh net, or a composite in which a synthetic resin perforated frame and a net are combined. It must be at least self-supporting and capable of pouring earth and sand from the top and back, which are open when placed. The net mesh size is such that earth and sand to be embanked does not fall off, and the bottom plate may be slightly coarser than the front plate.
【００１３】孔あき枠体とネットとを組合せネット篭と
するとネットをかえるのみで多様の土砂に対応すること
ができ便利である。また正面板の裏面に種子付きシート
などを取付けておくと、施工後の法面の緑化を促進する
上で効果がある。If a perforated frame and a net are combined to form a net basket, it is convenient to cope with various earth and sand simply by changing the net. Also, if a sheet with seeds is attached to the back of the front plate, it is effective in promoting greening of the slope after construction.
【００１４】このネット篭は様々な方法でつくることが
できるが、例えば図５のごとく、図１のネット篭４を展
開した形状の展開ネットシート６を施工現場において、
ホッチギス等の止具、あるいは金属線材等を用いてネッ
ト篭に組立て使用することもできる。このネット篭はネ
ット状補強材と組合せて盛土を施工するほか、比較的低
く、緩勾配の法面をもった盛土の施工に際してはネット
状補強材を用いることなく用いることができる。This net basket can be made by various methods. For example, as shown in FIG. 5, a developed net sheet 6 in which the net basket 4 shown in FIG.
It can also be used by assembling it into a net basket using a fastener such as a hotchgis or a metal wire. This net basket can be used in combination with a net-like reinforcing material, and can be used without using a net-like reinforcing material when embanking a relatively low and gentle slope.
【００１５】[0015]
【作用】この補強盛土の施工法およびネット篭は、盛土
する際に法面に沿いネット篭を配置し、まき出した盛土
の土砂をじょれん等を用いて開口した背面および上面か
らネット篭内に投入して法面が形成できる。従って従来
の土のう袋に土砂を充填して積上げ法面を形成するのに
比べ作業能率を著しく高めることができる。[Effect] The construction method and the net basket of this reinforcing embankment are as follows. When embankment, a net basket is placed along the slope, and the sand from the embankment that has been rolled out is opened from the back and top using a spatula. The slope can be formed by putting it into the inside. Therefore, the working efficiency can be remarkably improved as compared with a conventional sandbag filled with earth and sand to form a piled slope.
【００１６】[0016]
【発明の効果】(1) の発明になる補強盛土の施工法は法
面形成の作業性が優れ、ネット状補強材の展張、土砂の
まき出し展張の作業性とよく釣合がとれ、補強盛土施工
のコスト、工期の低減を図ることが可能となる。[Effects of the Invention] The method of constructing the reinforcing embankment according to the invention of (1) is excellent in workability of forming a slope, and is well balanced with workability of spreading a net-like reinforcing material and spreading sand and sand, and reinforcing. The embankment construction cost and the construction period can be reduced.
【００１７】また、(2) の発明になるネット篭は、盛土
の際の法面形成が容易となり、盛土の施工能率の向上を
達成できる。In the net basket according to the invention (2), the slope can be easily formed at the time of embankment, and the efficiency of embankment construction can be improved.
【図面の簡単な説明】[Brief description of the drawings]
【図１】実施例のネット篭の斜視図である。FIG. 1 is a perspective view of a net basket according to an embodiment.
【図２】実施例の盛土の施工法の一部断面で示す説明図
である。FIG. 2 is an explanatory view showing a partial section of the embankment construction method of the embodiment.
【図３】盛土の施工法で得られた盛土の断面図である。FIG. 3 is a cross-sectional view of the embankment obtained by the embankment construction method.
【図４】別の実施例で得られた盛土の断面図である。FIG. 4 is a cross-sectional view of an embankment obtained in another embodiment.
【図５】ネット篭を組立てできる展開ネットシートの平
面図である。FIG. 5 is a plan view of a developed net sheet on which a net basket can be assembled.
【図６】従来の補強盛土の断面図である。FIG. 6 is a sectional view of a conventional reinforcing embankment.
１…ネット状補強材、２…土のう袋、３…土砂、４…ネ
ット篭、４−ａ…正面板、４−ｂ…側板、４−ｃ…底
板、５…アンカー、６…展開ネットシート。DESCRIPTION OF SYMBOLS 1 ... Net reinforcement material, 2 ... Sandbag, 3 ... Earth sand, 4 ... Net basket, 4-a ... Front plate, 4-b ... Side plate, 4-c ... Bottom plate, 5 ... Anchor, 6 ... Deployment net sheet.
Claims (2)
盛土の施工において、１側面および上面が開口したネッ
ト篭を盛土の法面となすべき位置に、開口反対側面を法
面に沿わせ配置し、開口した１側面および上面から盛土
土砂を投入し、この土砂を投入したネット篭を多段に積
上げ法面を形成することを特徴とする補強盛土の施工
法。In the construction of a reinforced embankment formed by extending and reinforcing a net-like reinforcing material, a net cage having an opening on one side and an upper surface is placed at a position to be a slope of the embankment, and a side opposite to the opening is along the slope. A method for constructing a reinforced embankment, comprising embedding earth and sand from one side and an upper surface which are arranged and opened, and stacking net baskets into which the earth and sand are stacked in multiple stages.
沿い配置し、土砂を投入して積上げ法面を形成するネッ
ト篭であり、１側面および上面が開口していることを特
徴とする盛土用ネット篭。2. A net basket which is arranged along a surface to be a slope when embankment is to be constructed, and is formed by putting earth and sand to form a stacked slope, wherein one side and an upper surface are open. Embankment net basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3718891A JP2647564B2 (en) | 1991-03-04 | 1991-03-04 | Construction method of reinforcing embankment and net basket for embankment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3718891A JP2647564B2 (en) | 1991-03-04 | 1991-03-04 | Construction method of reinforcing embankment and net basket for embankment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04277221A JPH04277221A (en) | 1992-10-02 |
| JP2647564B2 true JP2647564B2 (en) | 1997-08-27 |
Family
ID=12490608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3718891A Expired - Lifetime JP2647564B2 (en) | 1991-03-04 | 1991-03-04 | Construction method of reinforcing embankment and net basket for embankment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2647564B2 (en) |
-
1991
- 1991-03-04 JP JP3718891A patent/JP2647564B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04277221A (en) | 1992-10-02 |
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