JPH108406A - Roadway widening block and roadway widening method - Google Patents
Roadway widening block and roadway widening methodInfo
- Publication number
- JPH108406A JPH108406A JP8185319A JP18531996A JPH108406A JP H108406 A JPH108406 A JP H108406A JP 8185319 A JP8185319 A JP 8185319A JP 18531996 A JP18531996 A JP 18531996A JP H108406 A JPH108406 A JP H108406A
- Authority
- JP
- Japan
- Prior art keywords
- block
- roadway
- retaining wall
- bottom plate
- widening
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title description 7
- 239000004576 sand Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 9
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000009415 formwork Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001070941 Castanea Species 0.000 description 1
- 235000014036 Castanea Nutrition 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Road Paving Structures (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、特に片側が河川、
崖などの段差になっている車道の拡幅に用いて好適な車
道拡幅ブロック及び車道拡幅方法に関する。BACKGROUND OF THE INVENTION The present invention relates to
The present invention relates to a roadway widening block and a roadway widening method suitable for widening a roadway having a step such as a cliff.
【０００２】[0002]
【従来の技術】従来、歩道については、片側が河川、崖
などの段差になっている部分に張り出すように用いるブ
ロックが、例えば、実開昭６３−７６０４４号公報に開
示されている。しかし、車道については歩道の場合より
も数段大きな強度が求められるために、この種のブロッ
クを用いた施工は困難とされていた。すなわち、強度の
大きいブロックを製造しようとすればブロックが大型に
なりすぎて製造・運搬・施工が困難となるのである。し
たがって、このような段差部分の車道拡幅工事は、多量
の土砂を谷側に投入し谷側を一部埋めて拡幅を行うか、
現場施工により強固な張り出し構造体を構築して拡幅を
行っていた。2. Description of the Related Art Conventionally, as for a sidewalk, a block used to overhang a stepped portion such as a river or a cliff on one side is disclosed in, for example, Japanese Utility Model Laid-Open No. 63-76044. However, since it is required that the strength of the road is several steps higher than that of the sidewalk, it has been difficult to construct the road using this type of block. In other words, if an attempt is made to produce a block having a high strength, the block becomes too large, making production, transportation and construction difficult. Therefore, such roadway widening work at the stepped part should be done by putting a lot of earth and sand into the valley side and partially filling the valley side,
A wide overhang structure was built by constructing a strong overhang structure by on-site construction.
【０００３】[0003]
【発明が解決しようとする課題】上記の従来工法におい
て、多量の土砂を谷側に投入し谷側を一部埋めて拡幅を
行う工法は、多量の土砂が必要でコストがかかるばかり
か、谷側の土地が埋められてしまうからその利用が制限
され、また、河川や険しい崖地のような場合には埋め立
てが不可能な場合もある。特に、片側が河川の場合に
は、河川をボックスカルバート等を用いて暗渠とし、そ
の上に車道を構築していたので、非常なコストを必要と
し、また河川が暗渠として隠れてしまうので、環境保護
や景観上も問題があった。現場施工により強固な張り出
し構造体を構築して拡幅を行う場合には、現場で基礎工
事・型枠工事・コンクリート工事・型枠解体工事を行わ
なければならないので、大変な工期とコストを必要とし
ていた。本発明は、このような常識を打破するもので、
ブロックを用いた車道の拡幅を可能とし、現場施工の工
期短縮及びコストダウンを実現するものである。In the conventional method described above, the method of putting a large amount of earth and sand into the valley side and widening the valley side by partially filling the valley side requires not only a large amount of earth and sand but also costs. Land use on the side will be buried, which limits its use, and it may not be possible to reclaim land in rivers or steep cliffs. In particular, when one side is a river, the river is formed as a culvert using a box culvert, etc., and a roadway is constructed on it, which requires extremely high costs, and the river is hidden as a culvert. There were also problems with protection and landscape. When a strong overhanging structure is constructed and widened by on-site construction, foundation work, formwork, concrete work, and formwork demolition work must be performed on site. Was. The present invention breaks such common sense,
It enables widening of roads using blocks, shortening the construction period of site construction and reducing costs.
【０００４】[0004]
【課題を解決するための手段】本発明は、底板と、底板
中間部から立設され上部が谷側に傾斜する張出部となっ
ている土留壁部と、土留壁部の山側ないし上側に突設さ
れた縦リブとからなることを特徴とする車道拡幅ブロッ
ク、及び、車道の拡幅部にブロックを設置するための地
業を行う工程と、該地業の上に、底板と、底板中間部か
ら立設され上部が谷側に傾斜する張出部となっている土
留壁部と、土留壁部の山側ないし上側に突設された縦リ
ブとからなり、底板の谷側の先端面にアンカー鉄筋が植
設されている車道拡幅ブロックを設置する工程と、設置
したブロック底板の谷側先端部を現場打ちコンクリート
で増幅する工程と、設置した車道拡幅ブロックの山側を
埋め戻す工程と、埋め戻した土砂の表面に舗装を行う工
程とを含むことを特徴とする車道の拡幅方法である。SUMMARY OF THE INVENTION The present invention is directed to a bottom plate, a retaining wall portion erected from a middle portion of the bottom plate and having an overhanging upper portion inclined toward a valley side, and a ridge side or an upper side of the retaining wall portion. A roadway widening block characterized by comprising projecting vertical ribs, and a step of performing a ground work for installing a block in a widened portion of the roadway, and a bottom plate, a bottom plate intermediate on the ground work And a vertical rib protruding from the mountain side or upper side of the earth retaining wall, and the bottom plate is formed on the tip end surface of the bottom plate at the valley side. Steps of installing the roadway widening block where the anchor reinforcement is planted, amplifying the valley side tip of the installed block bottom plate with cast-in-place concrete, and backfilling the mountain side of the installed roadway widening block. Paving the surface of the returned earth and sand. A roadway widening method according to symptoms.
【０００５】本発明の車道拡幅ブロックは、底板と土留
壁部とからなり、土留壁部の上部は谷側に傾斜する張出
部となっているから、このブロックを設置することで上
部が谷側に張り出して、その分車道を拡幅することがで
きる。土留壁部には補強のための縦リブが形成されてお
り、この縦リブが土留壁部の山側に設けられているの
で、底板の谷側の幅を狭く形成してもブロックが容易に
自立し、安全に施工することができる。すなわち、底板
の一部を現場打ちコンクリートで形成することができ、
ブロックの重量を軽減できる。この場合、底板の谷側の
先端面にアンカー鉄筋が植設されていることで、底板と
現場打ちコンクリートが一体化されて好ましい。さら
に、土留壁部の上部の張出部においては、縦リブが上側
に形成されているから、埋め戻し及び舗装を行ったと
き、土留壁部には少なくとも縦リブの厚さだけ土砂が被
覆していることとなり、この土砂が通行車両の衝撃荷重
を分散させるから、壁厚を薄くすることができる。[0005] The roadway widening block of the present invention comprises a bottom plate and a retaining wall, and the upper portion of the retaining wall is a protruding portion inclined toward the valley side. The road can be widened to the side. Vertical ribs for reinforcement are formed on the retaining wall, and these vertical ribs are provided on the mountain side of the retaining wall, so the block can easily stand on its own even if the width of the valley side of the bottom plate is narrowed And can be constructed safely. That is, part of the bottom plate can be formed of cast-in-place concrete,
Block weight can be reduced. In this case, it is preferable that the bottom plate and the cast-in-place concrete are integrated because the anchor rebar is planted on the tip end surface on the valley side of the bottom plate. Furthermore, since the vertical ribs are formed on the upper overhang portion of the retaining wall portion, when the backfill and the pavement are performed, the retaining wall portion is covered with the earth and sand by at least the thickness of the vertical rib. Since the earth and sand disperse the impact load of the passing vehicle, the wall thickness can be reduced.
【０００６】[0006]
【発明の実施の態様】以下、実施例を表した図面を参照
しつつ本願発明を詳細に説明する。図１は実施例の車道
拡幅ブロックの左側面図、図２は正面図、図３はブロッ
ク１を用いて本願発明方法で拡幅工事を行った車道の断
面説明図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments. FIG. 1 is a left side view of a roadway widening block according to an embodiment, FIG. 2 is a front view, and FIG. 3 is a cross-sectional explanatory view of a roadway on which widening work has been performed using the block 1 by the method of the present invention.
【０００７】車道拡幅ブロック１は、底板２と土留壁部
３とからなる。土留壁部３は底板２の中間部から立設さ
れ、その上部は谷側に傾斜した張出部４となっている。
土留壁部３には補強のための縦リブ５が形成されてお
り、この縦リブが土留壁部の山側ないし上側に突設され
ている。すなわち、土留壁部がほぼ垂直に形成されてい
る下部においては山側に、上方の張出部４においては上
側に突設されている。底板２の谷側の先端面には、複数
のアンカー鉄筋６が植設されている。The roadway widening block 1 comprises a bottom plate 2 and a retaining wall 3. The retaining wall portion 3 is erected from an intermediate portion of the bottom plate 2, and an upper portion thereof is an overhang portion 4 inclined toward a valley side.
A vertical rib 5 for reinforcement is formed on the retaining wall portion 3, and the vertical rib projects from a mountain side or an upper side of the retaining wall portion. That is, the lower part where the earth retaining wall portion is formed substantially vertically protrudes toward the mountain side, and the upper protruding part 4 protrudes upward. A plurality of anchor reinforcing bars 6 are planted on the tip end surface on the valley side of the bottom plate 2.
【０００８】ブロック１は、底板２が幅狭く形成され、
また、土留壁部３が肉薄に形成されているので、ブロッ
ク重量が軽減され、充分な強度を得ることができるにも
かかわらず製造・運搬・施工を容易に行うことができ
る。The block 1 has a bottom plate 2 formed to be narrow,
In addition, since the retaining wall portion 3 is formed to be thin, the weight of the block is reduced, and the production, transportation, and construction can be easily performed although sufficient strength can be obtained.
【０００９】図１において、土留壁部３の上部の張出部
４は谷側（図の左側）に傾斜しているから、これにより
ブロック１が左側に倒れようとする力が発生する。一
方、縦リブ５は土留壁部３の山側（図の右側）に設けら
れているから、これが前述の左側に倒れようとする力を
打ち消す。したがって、ブロック１は底板２の幅が狭い
にもかかわらず、安定的に自立し、運搬や施工を安全に
行うことができるのである。In FIG. 1, the overhanging portion 4 at the top of the retaining wall portion 3 is inclined toward the valley side (left side in the figure), thereby generating a force for the block 1 to fall to the left side. On the other hand, since the vertical ribs 5 are provided on the mountain side (the right side in the figure) of the retaining wall portion 3, the vertical ribs 5 cancel the above-mentioned force of falling to the left side. Therefore, the block 1 can stably stand on its own, and can safely carry and carry, even though the width of the bottom plate 2 is small.
【００１０】アンカー鉄筋６は、現場打ちコンクリート
で底板を増幅したときに、底板２と現場打ちコンクリー
ト１０とを一体化させるためのものである。The anchor reinforcing bar 6 is for integrating the bottom plate 2 and the cast-in-place concrete 10 when the bottom plate is amplified by cast-in-place concrete.
【００１１】次に、ブロック１を用いた車道拡幅方法を
図３を参照しつつ説明する。まず、車道の拡幅を行う部
分に、ブロック１を設置するために掘削・地均し・割栗
地業１３・捨てコンクリート１４等の必要な地業を行
う。もちろん地業はこれに限らず適当なものを選択でき
る。この地業の上に、クレーン等の揚重機を用いてブロ
ック１を設置する。ブロック１の底板２は現場打ちコン
クリート１０で増幅する。増幅された底板はブロック背
面の土圧による転倒モーメント及び滑動力に対抗する。
土留壁部３の先端には現場打ちコンクリートで立上部１
１が形成され、ガードレール１２が植設される。埋め戻
しによりブロック１の山側（図の右側）には土砂が充填
され、その表面には舗装１５が施工されて車道となる。
符号１６は谷側敷地である。Next, a road widening method using the block 1 will be described with reference to FIG. First, in order to install the block 1 in a portion where the roadway is widened, necessary groundwork such as excavation, leveling, splitting ground 13 and waste concrete 14 is performed. Of course, the local business is not limited to this, and an appropriate one can be selected. The block 1 is installed on this local business using a lifting machine such as a crane. The bottom plate 2 of the block 1 is amplified with cast-in-place concrete 10. The amplified bottom plate opposes the overturning moment and the sliding force due to the earth pressure on the back of the block.
The top of the retaining wall 3 is made of cast-in-place concrete at the tip 1
1 are formed, and the guardrail 12 is implanted. By the backfill, the mountain side (the right side in the figure) of the block 1 is filled with earth and sand, and the pavement 15 is constructed on the surface thereof to form a roadway.
Reference numeral 16 is a valley side site.
【００１２】車道を通過する車両の衝撃荷重は、少なく
とも張出部４の縦リブ５の厚さだけ被覆した土砂により
分散されるから、土留壁部３の壁厚を薄くしても充分こ
れに耐えることができる。The impact load of the vehicle passing through the roadway is dispersed by the earth and sand covered by at least the thickness of the vertical ribs 5 of the overhang portion 4, so that even if the wall thickness of the retaining wall portion 3 is reduced, it is sufficient. Can withstand.
【００１３】実施例の車道拡幅ブロック１の土留壁部３
の下部はほぼ垂直に形成されているが、これは必ずしも
垂直である必要はない。また、実施例のブロックでは土
留壁部の上部の張出部が明確に区別できるが、張出部
は、その基端方向の境目が必ずしも明確である必要はな
い。[0013] The retaining wall portion 3 of the roadway widening block 1 of the embodiment.
Is formed substantially vertically, but this need not be the case. Further, in the block of the embodiment, the overhanging portion above the retaining wall portion can be clearly distinguished, but the boundary of the overhanging portion in the base direction does not necessarily need to be clear.
【００１４】[0014]
【発明の効果】本発明の車道拡幅ブロックは、土留壁部
の縦リブを土留壁部の山側ないし上側に突設して形成す
ることにより、小型軽量化することができ、いままで困
難とされていた車道拡幅のブロック化を実現した。この
ブロックを用いて車道拡幅を行えば、現場における型枠
工事、型枠解体工事、コンクリート工事が最小限です
み、工期短縮とコストダウンを実現できる。The widening block of the roadway according to the present invention can be reduced in size and weight by forming the vertical ribs of the retaining wall portion so as to protrude from the mountain side or the upper side of the retaining wall portion. The widening of the roadway, which had been widened, was realized. If this block is used to widen the road, formwork, formwork demolition work and concrete work at the site can be minimized, shortening the construction period and reducing costs.
【図１】実施例の車道拡幅ブロック１の左側面図であ
る。FIG. 1 is a left side view of a roadway widening block 1 according to an embodiment.
【図２】車道拡幅ブロック１の正面図である。FIG. 2 is a front view of the roadway widening block 1. FIG.
【図３】車道拡幅ブロック１を用い本願発明方法で拡幅
工事を行った車道の断面説明図である。FIG. 3 is an explanatory sectional view of a roadway on which widening work has been performed by the method of the present invention using the roadway widening block 1.
１ 車道拡幅ブロック ２ 底板 ３ 土留壁部 ４ 張出部 ５ 縦リブ ６ アンカー鉄筋 １０ 現場打ちコンクリート １１ 立上部 １２ ガードレール １３ 割栗地業 １４ 捨てコンクリート １５ 舗装 １６ 谷側敷地 DESCRIPTION OF SYMBOLS 1 Roadway widening block 2 Bottom plate 3 Retaining wall part 4 Overhang part 5 Vertical rib 6 Anchor reinforcing bar 10 Cast-in-place concrete 11 Elevation part 12 Guard rail 13 Split chestnut ground 14 Waste concrete 15 Pavement 16 Valley side site
Claims (3)
部が谷側に傾斜する張出部４となっている土留壁部３
と、土留壁部３の山側ないし上側に突設された縦リブ５
とからなることを特徴とする車道拡幅ブロック１1. A bottom plate 2 and a retaining wall portion 3 having an overhanging portion 4 erected from an intermediate portion of the bottom plate 2 and having an upper portion inclined toward a valley side.
And a vertical rib 5 protruding from the mountain side or the upper side of the retaining wall portion 3.
Roadway widening block 1 comprising:
て、底板２の谷側の先端面にアンカー鉄筋６が植設され
ていることを特徴とする車道拡幅ブロック１2. The roadway widening block 1 according to claim 1, wherein an anchor reinforcing bar 6 is planted on a tip end surface of the bottom plate 2 on the valley side.
の地業を行う工程と、該地業の上に、底板２と、底板２
中間部から立設され上部が谷側に傾斜する張出部４とな
っている土留壁部３と、土留壁部３の山側ないし上側に
突設された縦リブ５とからなり、底板２の谷側の先端面
にアンカー鉄筋６が植設されている車道拡幅ブロック１
を設置する工程と、設置したブロック１の底板２をその
谷側先端部に現場打ちコンクリート１０を形成すること
で増幅する工程と、設置した車道拡幅ブロック１の山側
を埋め戻す工程と、埋め戻した土砂の表面に舗装１５を
行う工程とを含むことを特徴とする車道の拡幅方法3. A step of performing a local operation for installing a block in a widened portion of a roadway, and a bottom plate 2 and a bottom plate 2
The bottom plate 2 is composed of a retaining wall portion 3 erected from an intermediate portion and an overhanging portion 4 having an upper portion inclined toward a valley side, and a vertical rib 5 protruding from the mountain side or upper side of the retaining wall portion 3. Road widening block 1 with anchor reinforcement 6 planted at the tip end surface on the valley side
Installing, amplifying the bottom plate 2 of the installed block 1 by forming cast-in-place concrete 10 at the valley-side tip thereof, backfilling the mountain side of the installed roadway widening block 1, and backfilling. Performing a pavement 15 on the surface of the dirt and sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8185319A JP2802909B2 (en) | 1996-06-27 | 1996-06-27 | Roadway widening block and roadway widening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8185319A JP2802909B2 (en) | 1996-06-27 | 1996-06-27 | Roadway widening block and roadway widening method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH108406A true JPH108406A (en) | 1998-01-13 |
| JP2802909B2 JP2802909B2 (en) | 1998-09-24 |
Family
ID=16168762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8185319A Expired - Fee Related JP2802909B2 (en) | 1996-06-27 | 1996-06-27 | Roadway widening block and roadway widening method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2802909B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100964721B1 (en) | 2009-07-02 | 2010-06-21 | 박성진 | Block for road extension |
| CN112900175A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Road widening structure and construction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6085302U (en) * | 1983-11-14 | 1985-06-12 | 池口 明 | Concrete blocks for overhanging slopes, etc. |
| JPS62225601A (en) * | 1986-03-25 | 1987-10-03 | 岡部株式会社 | Extension type widened road |
| JPH06228903A (en) * | 1992-12-10 | 1994-08-16 | Kaihatsu Concrete Kk | Road widening block |
-
1996
- 1996-06-27 JP JP8185319A patent/JP2802909B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6085302U (en) * | 1983-11-14 | 1985-06-12 | 池口 明 | Concrete blocks for overhanging slopes, etc. |
| JPS62225601A (en) * | 1986-03-25 | 1987-10-03 | 岡部株式会社 | Extension type widened road |
| JPH06228903A (en) * | 1992-12-10 | 1994-08-16 | Kaihatsu Concrete Kk | Road widening block |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100964721B1 (en) | 2009-07-02 | 2010-06-21 | 박성진 | Block for road extension |
| CN112900175A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Road widening structure and construction method thereof |
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|---|---|
| JP2802909B2 (en) | 1998-09-24 |
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