JPH02128017A - Bank structure - Google Patents
Bank structureInfo
- Publication number
- JPH02128017A JPH02128017A JP28111288A JP28111288A JPH02128017A JP H02128017 A JPH02128017 A JP H02128017A JP 28111288 A JP28111288 A JP 28111288A JP 28111288 A JP28111288 A JP 28111288A JP H02128017 A JPH02128017 A JP H02128017A
- Authority
- JP
- Japan
- Prior art keywords
- blocks
- light weight
- layer
- embankment
- polystyrene foam
- 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
- 229920006327 polystyrene foam Polymers 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 10
- 239000004568 cement Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 244000144992 flock Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Retaining Walls (AREA)
- Road Paving Structures (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は軟弱地盤等の上に盛土して構築した道路等の
盛土構造物に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an embankment structure such as a road constructed by embanking on soft ground or the like.
近年、軟弱地盤での工事が増加するに伴い、軽量盛土材
の必要性が高まっている。そして、軽量盛土材をプレキ
ャスト化することにより、工期の短縮、省力化施工１機
械化施工１品質向上、維持補修の容易さ等の面から、ト
ータルコストの低減を図り得ることが可能となった。さ
らに、プレキャスト部材は自立性があるので土圧軽減工
法としての利点を備え、注目されている。In recent years, as construction work on soft ground has increased, the need for lightweight embankment materials has increased. By precasting lightweight embankment materials, it has become possible to reduce the total cost in terms of shorter construction periods, labor-saving construction, mechanized construction, improved quality, and ease of maintenance and repair. Furthermore, since precast members are self-supporting, they have the advantage of being a construction method for reducing earth pressure, and are attracting attention.
プレキャストした軽量盛土材は上記のような特色を有す
るので、その用途として軟弱地盤上の盛土材、用地の有
効利用、道路の拡幅、構造物の裏込め、軟弱地盤の補強
材、荷重分散材等が挙げられる。Precast lightweight embankment materials have the above-mentioned characteristics, and can be used as embankment materials on soft ground, effective use of land, road widening, backfilling of structures, reinforcing materials for soft ground, load distribution materials, etc. can be mentioned.
従来、軟弱地盤用のプレキャスト化された盛土材として
は、ポリスチレン発泡体ブロック、あるいはポリスチレ
ン発泡体を骨材とした軽量コンクリートブロック、発泡
材を用い発泡させた気泡コンクリート等があった。Conventionally, precast embankment materials for soft ground include polystyrene foam blocks, lightweight concrete blocks using polystyrene foam as aggregate, and aerated concrete made from foamed materials.
ポリスチレン発泡体ブロックは単位体積重量γ＝０．０
２〜０．０４ｔ／ｍ’で軽量性を備え、自立性。Polystyrene foam block has unit volume weight γ=0.0
Lightweight and self-supporting at 2-0.04t/m'.
耐水性、取扱性が優れているが、これを用いた盛土工法
は次の様な欠点があった。■ガソリン等の砿油系物質に
溶解し、耐薬品性が劣る。■可燃性である。■紫外線に
より、変形、変色し、耐候性が劣る。■衝撃に弱く壁面
保護が必要。Although it has excellent water resistance and ease of handling, embankment construction methods using it have the following drawbacks. ■Dissolves in mineral oil-based substances such as gasoline, and has poor chemical resistance. ■It is flammable. ■Deformed and discolored by ultraviolet rays, resulting in poor weather resistance. ■It is weak against shock and requires wall protection.
■部材単価が高い（１７，０００円／＋″）。■耐震性
が劣る（構造がトップヘビーになっている。）。■The unit cost of parts is high (17,000 yen/+'').■Earthquake resistance is poor (the structure is top-heavy).
また、前記した軽量コンクリートブロックは単位体積重
量０．５〜１．２ｔ／ｍ’程度であり、軽量盛土材とし
てのメリットが乏しく、軽量性、取扱性が劣る。気泡コ
ンクリートブロックは通常蒸気養生が必要であり、場所
打ち気泡コンクリートでは特殊なプラントが必要となる
欠点があった。Moreover, the above-mentioned lightweight concrete block has a unit volume weight of about 0.5 to 1.2 t/m', and has little merit as a lightweight embankment material, and is inferior in lightness and handling. Aerated concrete blocks usually require steam curing, and cast-in-place aerated concrete has the disadvantage of requiring special plant.
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、性能、施工性が優れ、軟弱地盤に構築して好
適な盛土構造物を提案するにある。This invention has been made in view of the above-mentioned problems. The purpose is to propose an embankment structure that has excellent performance and ease of construction and is suitable for construction on soft ground.
この盛土構造物は、軽量コンクリートブロックあるいは
軽量コンクリートブロックとポリエスチレン発泡体ブロ
ックを積上げ、少なくとも外層部に軽量コンクリートブ
ロックを配し盛土層を構成してなることを特徴とする。This embankment structure is characterized by stacking lightweight concrete blocks or lightweight concrete blocks and polystyrene foam blocks, and arranging lightweight concrete blocks at least in the outer layer to form an embankment layer.
この発明の軽量コンクリートブロックは「セメント＋軽
量骨材十水ト細骨材」からなる組成物、または「セメン
ト十発泡剤＋軽量骨材＋水＋細骨材」からなる組成物を
主材とした硬化物である。その形状、体積重量、圧縮強
度の仕様は、地盤条件、設計条件に応じセメント種類。The lightweight concrete block of this invention is mainly composed of a composition consisting of "cement + lightweight aggregate 10 water and fine aggregate" or a composition consisting of "cement 10 foaming agent + lightweight aggregate + water + fine aggregate". It is a cured product. The shape, volumetric weight, and compressive strength specifications depend on the type of cement and ground conditions and design conditions.
量、軽量骨材量、気泡量等の製造条件を調整し、変更す
ることができる。It is possible to adjust and change manufacturing conditions such as volume, amount of lightweight aggregate, amount of air bubbles, etc.
なお、セメントとしては普通ポルトランド。The cement used is usually Portland.
早強、超早強等を選定して用い、セメントのほか、フラ
イアッシュや高炉スラグを結合材として用いる場合があ
る。軽量骨材としては人工軽量骨材、あるいはポリスチ
レン発泡体細片等である。Early strength, ultra early strength, etc. are selected and used, and in addition to cement, fly ash or blast furnace slag may be used as a binding material. The lightweight aggregate may be artificial lightweight aggregate or polystyrene foam strips.
以下図示する実施例により説明する。第１図はこの軽量
コンクリートブロックの形状とその積上げの状態を示す
ものである。この例で用いるブロックはいずれも略直方
体形をなし、幅方向面の幅Ｗ ＋ ／高さｈが２／１の
ブロック１と幅Ｗｔ／高さｈが１／１のブロック１′と
がある。This will be explained below with reference to the embodiments shown in the drawings. Figure 1 shows the shape of this lightweight concrete block and how it is stacked. All of the blocks used in this example have a substantially rectangular parallelepiped shape, and include block 1 with width W + /height h of 2/1 and block 1' with width Wt / height h of 1/1. .
いずれのブロック１、およびｌｏも上下面にそれぞれ長
さ方向に沿い３条の断面三角形の突条２と溝条３、およ
び１条の突条２と溝条３とを有し、長さ方向の稜には断
面三角形に切欠してなった切欠部４が形成されている。Each of the blocks 1 and lo has three protrusions 2 and grooves 3 having a triangular cross section along the length direction on the upper and lower surfaces, and one protrusion 2 and groove 3 along the length direction. A cutout 4 having a triangular cross section is formed at the edge of the cutout.
また、ブロック１，１′にはそれぞれ長さ方向に貫通し
た断面長方形の２つの空洞５，５および１つの空洞５が
設けである。Further, the blocks 1, 1' are provided with two cavities 5, 5 each having a rectangular cross section and one cavity 5 extending through the blocks 1, 1' in the length direction.
このブロック１．１）はブロック上面の突条２を下面の
溝条３および２つの切欠部４，４が形成した溝条に嵌合
し、幅、長さ方向の目地６をずらせ積上げ盛土層を構成
する。なお、外側に配置するブロック１および１′の側
面には長さ方向の２条の溝条３が設けである。This block 1.1) is constructed by fitting the protrusion 2 on the upper surface of the block into the groove 3 on the lower surface and the groove formed by the two notches 4, 4, and by shifting the joints 6 in the width and length directions and stacking the embankment layer. Configure. In addition, two longitudinal grooves 3 are provided on the side surfaces of the blocks 1 and 1' arranged on the outside.
この形状のブロックは上下面の突条と溝条を嵌合し、目
地をずらせ積上げることにより、ブロック間のずれが防
止でき、盛土層の安定性向上が達成できる。ポリスチレ
ン発泡体ブロックも同様なブロック形状となすことによ
り、軽量コンクリートと嵌合し積上げることが可能とな
る。空洞を設けることにより、盛土層の軽量化が一層促
進でき、同時に施工時のブロックの取扱性の向上を図る
ことができる。By fitting the protrusions and grooves on the upper and lower surfaces of blocks of this shape and stacking them with staggered joints, it is possible to prevent the blocks from shifting and improve the stability of the embankment layer. By making the polystyrene foam blocks into a similar block shape, it becomes possible to fit and stack with lightweight concrete. By providing a cavity, it is possible to further reduce the weight of the embankment layer, and at the same time, it is possible to improve the handling of the blocks during construction.
第２図は軟弱地盤７上に軽量コンクリートフロック１お
よびポリスチレンの発泡体ブロック８を積上げ盛土層９
を構成し、盛土構造物の道路を構築した実施例である。Figure 2 shows an embankment layer 9 in which lightweight concrete flock 1 and polystyrene foam blocks 8 are piled up on soft ground 7.
This is an example in which a road was constructed using an embankment structure.
盛土層９の両側および上部の表層部に軽量コンクリート
ブロック１を内層部にはポリスチレン発泡体ブロック８
を配置し、それぞれ前託第１図のごとき形状で嵌合して
積上げである。Lightweight concrete blocks 1 are placed on both sides and the upper surface layer of the embankment layer 9, and polystyrene foam blocks 8 are placed on the inner layer.
are arranged and stacked together, fitting each other in the shape shown in Figure 1.
盛土層９の上面にコンクリート床板１０（場合によって
は不要）、路盤１）および表層１２を順に重ね舗装路面
を形成し、盛土層９の傾斜した側面には被覆土１３を配
し植生緑化を図った。A concrete floor plate 10 (unnecessary in some cases), a roadbed 1) and a surface layer 12 are layered in order on the top of the embankment layer 9 to form a paved road surface, and cover soil 13 is placed on the sloping side of the embankment layer 9 for vegetation greening. Ta.
この実施例の盛土構造物の道路は軽量コンクリートブロ
ックの剪断強度が大であるため、軽量による効果ととも
に、剪断抵抗（盛土層の一体化による）が増大し、盛土
層の安定性が著しく向上した。また、軽量コンクリート
ブロックとポリスチレン発泡体ブロックとを組合せて積
上げたことにより盛土層が著しく軽量となり、超軟弱地
盤に対応することができた。側面の被覆土は通常不要で
あるが、景観的に緑化が必要な場合に設けることができ
る。In the road of the embankment structure in this example, the lightweight concrete blocks have a high shear strength, so in addition to the effect of light weight, the shear resistance (due to the integration of the embankment layer) increases, and the stability of the embankment layer is significantly improved. . Furthermore, by stacking lightweight concrete blocks and polystyrene foam blocks in combination, the embankment layer became significantly lighter, making it suitable for use on extremely soft ground. Covering soil on the sides is usually unnecessary, but it can be provided if greening is required for aesthetic reasons.
第３図は地山法面１４の前方に、前記第１図の形状のコ
ンクリートブロック１を嵌合して積上げ、前面が垂直壁
面１５をなした盛土層９を構成し、盛土構造物の道路を
構築した実施例である。盛土層９内には他山法面１４内
に打込んだ水平方向の定着アンカー１６ （場合によっ
ては不要）が配してあり、盛土層９上面にコンクリート
床板１０（場合によっては不要）、路盤１）および表層
１２を順に重ね、他山面と連続した舗装路面を形成した
。FIG. 3 shows that the concrete blocks 1 having the shape shown in FIG. This is an example of constructing a . In the embankment layer 9, horizontal fixing anchors 16 (unnecessary in some cases) are arranged, which are driven into the slope 14 of the mountain. 1) and the surface layer 12 were layered in order to form a paved road surface that was continuous with other mountain surfaces.
この盛土構造物は、盛土層が耐薬品性、耐火性、耐候性
を備え自立性、耐衝撃性が優れ、垂直壁面１５に作用す
る土圧が低いので壁面保護材が不要となった。基礎地盤
が超軟弱な場合は外層部のみを軽量コンクリートブロッ
クとなし、内層部にポリスチレン発泡体ブロックを配し
、対応することができる。支持地盤が軟弱地盤であって
も、ブロック全量を軽量コンクリートフロックの重量で
施工できれば、ブロック間を突条と溝条との嵌合効果に
より、ブロックが一体化し、定着アンカー、コンクリー
ト床板を不要とすることもできる。In this embankment structure, the embankment layer has chemical resistance, fire resistance, and weather resistance, and has excellent self-reliance and impact resistance, and the earth pressure acting on the vertical wall surface 15 is low, so that a wall surface protection material is not required. If the foundation ground is extremely soft, this can be handled by using lightweight concrete blocks for only the outer layer and polystyrene foam blocks for the inner layer. Even if the supporting ground is soft, if the entire block can be constructed using the weight of lightweight concrete flock, the blocks will be integrated due to the interlocking effect of the protrusions and grooves between the blocks, eliminating the need for anchors and concrete floor plates. You can also.
この盛土構造物の盛土層を構成する軽量コンクリートブ
ロックおよびポリスチレン発泡体ブロックは土に比べ軽
量で圧縮強度が大きいので、軟弱地盤上にも構築でき、
道路舗装等の上部構造が経済的となる。The lightweight concrete blocks and polystyrene foam blocks that make up the embankment layer of this embankment structure are lighter than soil and have greater compressive strength, so they can be constructed even on soft ground.
Superstructures such as road pavement become economical.
盛土層の外装部を構成する軽量コンクリートブロックは
耐薬品性、不燃性、耐候性を有し、自立性、耐衝撃性が
優れているので、劣化や火災の恐れがなく、垂直壁面で
あっても壁面保護材が不要である。The lightweight concrete blocks that make up the exterior of the embankment layer are chemical resistant, non-combustible, weather resistant, self-supporting, and have excellent impact resistance, so there is no risk of deterioration or fire, and they are suitable for vertical walls. No wall protection material is required.
この発明は以上の通りであり、この盛土構造物は軟弱な
地盤に施工性よく低コストで構築することができ、道路
等として用い高い性能を発揮できる。The present invention is as described above, and this embankment structure can be constructed on soft ground with good construction efficiency and at low cost, and can be used as a road and exhibits high performance.
図面はこの発明の実施例を示すものであって、第１図は
軽量コンクリートブロックの形状および積上状態を示す
斜視図、第２図は軟弱地盤上に構築した道路の横断面図
、第３図は他山法面前面に構築した道路の横断面図であ
る。
１．１′・・・・・・Ｉｌｌコンクリートブロック、２
・・・・・・突条、３・・・・・・溝条、４・・・・・
・切欠部、５・・・・・・空洞、６・・・・・・目地、
７・・・・・・軟弱地盤、８・・・・・・ポリスチレン
発泡体ブロック、９・・・・・・盛土層、１０・・・・
・・コンクリート床版、１）・・・・・・路盤、１２・
・・・・・表層、１３・・・・・・被覆土、１４・・・
・・・地山法面、１５・・・・・・垂直壁面、１６・・
・・・・定着アンカー
第
図The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing the shape and stacked state of lightweight concrete blocks, FIG. 2 is a cross-sectional view of a road constructed on soft ground, and FIG. The figure is a cross-sectional view of a road constructed in front of the slope of another mountain. 1.1'...Ill concrete block, 2
... Protrusion, 3... Groove, 4...
・Notch, 5...Cavity, 6...Joint,
7... Soft ground, 8... Polystyrene foam block, 9... Embankment layer, 10...
... Concrete slab, 1) ... Roadbed, 12.
...Surface layer, 13...Covering soil, 14...
...Mound slope, 15...Vertical wall surface, 16...
・・・Fixing anchor diagram
Claims (1)
ートブロックとポリスチレン発泡体ブロックを積上げ、
少なくとも外層部に軽量コンクリートブロックを配し盛
土層を構成してなることを特徴とする盛土構造物。(1) Stacking lightweight concrete blocks or lightweight concrete blocks and polystyrene foam blocks,
An embankment structure comprising lightweight concrete blocks arranged at least in the outer layer to form an embankment layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63281112A JPH0784738B2 (en) | 1988-11-07 | 1988-11-07 | Embankment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63281112A JPH0784738B2 (en) | 1988-11-07 | 1988-11-07 | Embankment structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02128017A true JPH02128017A (en) | 1990-05-16 |
| JPH0784738B2 JPH0784738B2 (en) | 1995-09-13 |
Family
ID=17634520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63281112A Expired - Lifetime JPH0784738B2 (en) | 1988-11-07 | 1988-11-07 | Embankment structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0784738B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8696250B2 (en) | 2009-10-30 | 2014-04-15 | Steve Ruel | Backfill system for retaining wall |
| US8764348B2 (en) | 2010-09-15 | 2014-07-01 | Steve Ruel | Retaining wall systems and methods |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245801A (en) * | 1985-08-24 | 1987-02-27 | 株式会社建設企画コンサルタント | Construction of structure by foamed resin block |
| JPS62107119A (en) * | 1985-11-01 | 1987-05-18 | Oyo Kikaku:Kk | Method of building up retaining wall by hollow slab |
| JPS6344025A (en) * | 1986-08-12 | 1988-02-25 | Keihan Concrete Kogyo Kk | Foamed block back-filling material for foamed block structure |
-
1988
- 1988-11-07 JP JP63281112A patent/JPH0784738B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245801A (en) * | 1985-08-24 | 1987-02-27 | 株式会社建設企画コンサルタント | Construction of structure by foamed resin block |
| JPS62107119A (en) * | 1985-11-01 | 1987-05-18 | Oyo Kikaku:Kk | Method of building up retaining wall by hollow slab |
| JPS6344025A (en) * | 1986-08-12 | 1988-02-25 | Keihan Concrete Kogyo Kk | Foamed block back-filling material for foamed block structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8696250B2 (en) | 2009-10-30 | 2014-04-15 | Steve Ruel | Backfill system for retaining wall |
| US8764348B2 (en) | 2010-09-15 | 2014-07-01 | Steve Ruel | Retaining wall systems and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0784738B2 (en) | 1995-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3421326A (en) | Constructional works | |
| US5472297A (en) | Building and shoring blocks | |
| EP1084306B1 (en) | Method of forming a support structure using strings or stays | |
| US8667752B2 (en) | Interlocking construction systems and methods | |
| AU620012B2 (en) | Pre-cast, reinforced concrete retaining wall system | |
| US3226935A (en) | Retaining wall and method of constructing same | |
| US4903450A (en) | Concrete footer block and foundation system formed therefrom | |
| AU1738699A (en) | Block for retaining wall and method for the construction of retaining wall using the same | |
| EP0595193A1 (en) | An embankment formed by preformed collaborating assemblable elements, in particular for road or railway constructions, and process | |
| RU102220U1 (en) | ROAD DESIGN | |
| WO1990001597A1 (en) | Set of angular building elements fitting into one another | |
| JPH02128017A (en) | Bank structure | |
| US5189855A (en) | Foundation raft for supporting a structure | |
| US9267282B2 (en) | Block for construction and method to build walls with said block | |
| KR100531180B1 (en) | the revetment block and the process method using block shaped plate which contained natural stones on the surface | |
| JP4227356B2 (en) | Long block for construction | |
| JP2002250043A (en) | Wall face protective block | |
| DE830806C (en) | Road surface made of artificial stones | |
| JPS6323475Y2 (en) | ||
| DE4104045C2 (en) | Process for the production of a versatile supporting wall construction for the stabilization of terrain jumps | |
| EP3470588A1 (en) | Construction method using bags of material | |
| JPS62268413A (en) | Ground improving-reinforcing work using composite material | |
| GB2372050A (en) | Building construction for forming retaining walls, flood barriers etc. | |
| JP2003019707A (en) | Wood civil engineering product, its manufacturing method and work execution method by using wood material or wood civil engineering product | |
| JP2003003491A (en) | Box-type foundation structure and method for constructing the same |