JPH047222Y2 - - Google Patents
Info
- Publication number
- JPH047222Y2 JPH047222Y2 JP1986059370U JP5937086U JPH047222Y2 JP H047222 Y2 JPH047222 Y2 JP H047222Y2 JP 1986059370 U JP1986059370 U JP 1986059370U JP 5937086 U JP5937086 U JP 5937086U JP H047222 Y2 JPH047222 Y2 JP H047222Y2
- Authority
- JP
- Japan
- Prior art keywords
- civil engineering
- blocks
- circular
- block
- space
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000003628 erosive effect Effects 0.000 description 11
- 238000010276 construction Methods 0.000 description 9
- 241000251468 Actinopterygii Species 0.000 description 4
- 241000238557 Decapoda Species 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241001070941 Castanea Species 0.000 description 2
- 235000014036 Castanea Nutrition 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002351 wastewater Substances 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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Revetment (AREA)
- Artificial Fish Reefs (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、河川や海岸等の護岸、砂防、魚巣等
の機能を備えた土木用ブロツクに関する。[Detailed description of the invention] [Field of industrial application] The present invention relates to a block for civil engineering that has functions such as bank protection for rivers and coasts, erosion control, fish nests, etc.
従来から使用されている土木用ブロツクとして
は、そのブロツクを配列したときに各ブロツク間
に平面的な空隙を形成するものや、消波のために
複雑な形状とした様々なものがある。
Conventionally used civil engineering blocks include those that form planar gaps between blocks when arranged, and various blocks that have complex shapes for wave dissipation.
このような土木用ブロツク、特に砂防ブロツク
の場合、潮の流れによる侵食を防ぐために、潮流
に対する抵抗をできるだけ小さくした形状となつ
ている。 In the case of such civil engineering blocks, especially erosion control blocks, they are designed to have as little resistance to tidal currents as possible in order to prevent erosion caused by tidal currents.
しかし、従来のブロツクでは、砂防及び護岸の
機能を果たしても、これらを組み合わせることに
よつて得られる空隙を魚巣等として利用できず、
特に立体的にレイアウトした時には水の流路が閉
塞して抵抗が大きくなる。たとえば、護岸や砂防
を確実にするためブロツクを段積みにした場合、
ブロツクにより形成された空隙を水の流路として
利用することができない。このため、ブロツク群
に対する流水の抵抗が増大し、施工強度及びブロ
ツク自体の強度をかなり大きくする必要がある等
の問題がある。また、ブロツク間の空隙を、魚巣
やエビ、カニ等の幼虫の孵化場として利用するこ
ともできない。 However, although conventional blocks perform the functions of erosion control and bank protection, the voids obtained by combining these blocks cannot be used as fish nests, etc.
Particularly when laid out three-dimensionally, the water flow path is blocked and the resistance increases. For example, if blocks are stacked in layers to ensure bank protection or erosion control,
The voids formed by the blocks cannot be used as water channels. For this reason, there is a problem that the resistance of flowing water to the block group increases, and it is necessary to considerably increase the construction strength and the strength of the blocks themselves. Furthermore, the spaces between the blocks cannot be used as fish nests or hatcheries for larvae such as shrimp and crabs.
そこで、本考案者は、従来のブロツクにおける
このような問題を解消するものとして、護岸や砂
防等の従来のブロツク機能に加え、ブロツクのレ
イアウトに拘わらず各ブロツク間の空隙を生物の
成育に利用でき、しかも流水の抵抗を低減させた
土木用ブロツクを実開昭61−152025号として提案
した。 Therefore, in order to solve these problems with conventional blocks, in addition to the conventional block functions such as seawalls and erosion control, the inventor of the present invention has developed a new block that utilizes the spaces between each block for the growth of living things, regardless of the layout of the blocks. We proposed a block for civil engineering that could be used in construction and reduce the resistance of flowing water as Utility Model Application No. 152025/1983.
この提案の土木用ブロツクは、正方形の対角二
点を中心とする二つの等径の円弧領域及び残りの
対角二点を中心とし前記円弧より小さい二つの等
径の円弧領域を切り欠いた平面形状をもち、且つ
上下面の少なくとも一方に前記大径円弧の半径方
向に切欠きを設けたものである。 This proposed civil engineering block has two circular arc areas of equal diameter centered on two diagonal points of a square, and two circular arc areas of equal diameter smaller than the aforementioned circular arcs centered on the remaining two diagonal points. It has a planar shape, and a notch is provided in at least one of the upper and lower surfaces in the radial direction of the large diameter arc.
実開昭61−152025号の土木用ブロツクを使用す
るとき、ブロツク間に生物の棲息空間となる隙間
を維持しながら、護岸や砂防等の工事を行うこと
ができる。
When using the civil engineering blocks of Utility Model Application Publication No. 61-152025, construction work such as bank protection and erosion control can be carried out while maintaining gaps between the blocks that can serve as habitats for living things.
しかし、この土木用ブロツクにおいて、セメン
トを継目に充填することにより、隣接するブロツ
ク相互の接続を行つていた。そのために、土木用
ブロツクの接続に際しては、たとえば河川工事の
場合には流水を堰き止める必要があり、工事を手
間のかかるものにしていた。また、土木用ブロツ
ク単体の形状が不安定なものであるため、積み重
ねて保管する場合に、その山積み状態が崩れた
り、或いは子供がその積み重ねたブロツクの山に
入つて遊んでいるうちに出れなくなるという恐れ
があつた。 However, in this civil engineering block, adjacent blocks were connected to each other by filling the joints with cement. For this reason, when connecting civil engineering blocks, for example, in the case of river construction, it is necessary to dam up running water, making the construction work time-consuming. In addition, since the shape of individual civil engineering blocks is unstable, when they are stored in a pile, the pile may collapse, or a child may get into the pile of blocks and become unable to get out while playing. There was a fear that.
そこで、本考案は、先の提案に係わる土木用ブ
ロツクにおけるこのような問題を解消すべく案出
されたものであり、護岸、砂防等の工事を容易に
し、且つ安定して保管することができる土木用ブ
ロツクを提供することを目的とする。 Therefore, the present invention was devised to solve such problems with the civil engineering blocks related to the previous proposal, and it facilitates construction work such as bank protection and erosion control, and can be stored stably. The purpose is to provide blocks for civil engineering.
本考案の土木用ブロツクは、その目的を達成す
るために、正方形の四個の頂点をそれぞれ中心と
する等径の円弧で囲まれる扇形部、中央部に設け
た円形部及び前記正方形の四辺の中点をそれぞれ
中心とする小径の半円部を切り欠いた平面形状を
もち、上下面の少なくとも一方に前記扇形部の半
径方向に前記扇形部から前記円形部まで連続する
切欠きを設け、且つ平面方向に内蔵させた環状の
補強用鉄筋の一部を接続部として前記半円部に露
出させていることを特徴とする。
In order to achieve this purpose, the civil engineering block of the present invention has a fan-shaped part surrounded by arcs of equal diameter centered on the four vertices of the square, a circular part provided in the center, and a circular part provided on the four sides of the square. It has a planar shape in which small-diameter semicircular parts are cut out, each centering on a midpoint, and a notch is provided on at least one of the upper and lower surfaces of the fan-shaped part in a radial direction from the sector-shaped part to the circular part, and It is characterized in that a part of the annular reinforcing reinforcing bar built in in the planar direction is exposed in the semicircular part as a connecting part.
以下、図面に示す実施例により本考案の特徴を
具体的に説明する。
Hereinafter, the features of the present invention will be specifically explained with reference to embodiments shown in the drawings.
第１図は本実施例の土木用ブロツクを示す斜視
図であり、第２図及び第３図はそれぞれその側面
図及び平面図である。 FIG. 1 is a perspective view showing a civil engineering block of this embodiment, and FIGS. 2 and 3 are a side view and a plan view thereof, respectively.
本例の土木用ブロツクＡは、その平面が第３図
に示すような形状になつている。すなわち、一点
鎖線で示した基本となる正方形１から、該正方形
の四頂点を中心とする四個の扇形部２，該正方形
１の真中にあり扇形部２と同一半径の円形部３及
び該正方形１の四辺の中点を中心とする半円部４
を切り欠いた残りを、土木用ブロツクＡの平面形
状としている。この平面形状を基礎として高さ方
向に立体化させたものが、土木用ブロツクＡの本
体である。なお、本例では、円形部３の半径を扇
形部２の半径に等しくしているが、これに拘束さ
れることなく両者の半径を異なるものとしても良
いことは勿論である。 The civil engineering block A of this example has a planar shape as shown in FIG. That is, from a basic square 1 shown by a dashed-dotted line, four fan-shaped parts 2 centered on the four vertices of the square, a circular part 3 located in the middle of the square 1 and having the same radius as the fan-shaped part 2, and the square. Semicircular part 4 centered on the midpoint of the four sides of 1
The planar shape of civil engineering block A is obtained by cutting out the remaining part. The main body of civil engineering block A is made three-dimensional in the height direction based on this planar shape. In this example, the radius of the circular part 3 is made equal to the radius of the fan-shaped part 2, but it goes without saying that the radius of the two parts may be different without being restricted to this.
この土木用ブロツクＡ本体の扇形部２の底部又
は頂部には、円形部３の空洞に連なる切欠き部５
が穿設されている。この切欠き部５は、土木用ブ
ロツクＡを積み重ねたときに、土木用ブロツクＡ
相互の間に空間部を形成するものであり、該空間
部を介して円形部３内に流水が流入するようにな
つている。 At the bottom or top of the fan-shaped part 2 of the main body of the civil engineering block A, there is a notch 5 that is connected to the cavity of the circular part 3.
is drilled. This notch 5 is formed when the civil engineering blocks A are stacked.
A space is formed between them, and running water flows into the circular part 3 through the space.
更に、土木用ブロツクＡ本体の内部には、補強
用鉄筋６が埋め込まれている。この補強用鉄筋６
は、第４図に示すように環状に成形されており、
その円周方向の四個所に外方向に向かつて突出す
る突起７が取り付けられている。この突起７は、
第１〜３図に示すように半円部４内の空間に露出
している。この露出している突起７は、場合によ
つてはワイヤを懸け、土木用ブロツクＡを吊り上
げるために利用される。しかし、通常は、土木用
ブロツクＡの円形部３又は扇形部２にワイヤを懸
けて、土木用ブロツクＡを運搬する。 Furthermore, reinforcing reinforcing bars 6 are embedded inside the main body of the civil engineering block A. This reinforcement reinforcing bar 6
is formed into an annular shape as shown in Fig. 4,
Projections 7 projecting outward are attached to four locations in the circumferential direction. This protrusion 7 is
As shown in FIGS. 1 to 3, it is exposed to the space within the semicircular portion 4. This exposed protrusion 7 is used to suspend the civil engineering block A by hanging a wire as the case may be. However, normally, the civil engineering block A is transported by hanging a wire around the circular part 3 or fan-shaped part 2 of the civil engineering block A.
第５図は、この土木用ブロツクＡを複数組み合
わせた例を示す。土木用ブロツクＡは、第３図に
示したような平面形状を持つているので、これを
平面上で縦横に並べると、隣接する四個の扇形部
２により、円形部３と同じ大きさの円形空間８が
形作られる。そして、隣接する二個の円形部３に
より小円形空間９が形作られる。 FIG. 5 shows an example in which a plurality of civil engineering blocks A are combined. The civil engineering block A has a planar shape as shown in Fig. 3, so when it is arranged vertically and horizontally on a plane, the four adjacent fan-shaped parts 2 form a block with the same size as the circular part 3. A circular space 8 is formed. A small circular space 9 is formed by two adjacent circular parts 3.
該小円形空間９には、突起７が臨んでおり、こ
の突起７を介して隣接する土木用ブロツクＡが相
互に接続される。第６図は、該小円形空間９に差
し込まれる連結具１０を示す。この連結具１０
は、小円形空間９の大きさに対応する直径をもつ
円柱に成形されており、その高さは土木用ブロツ
クＡの高さと同等にされている。そして、突起７
に相当する高さまで凹部１１が穿設されている。 A projection 7 faces the small circular space 9, and adjacent civil engineering blocks A are connected to each other via this projection 7. FIG. 6 shows a connector 10 inserted into the small circular space 9. This connector 10
is formed into a cylinder having a diameter corresponding to the size of the small circular space 9, and its height is made equal to the height of the civil engineering block A. And protrusion 7
The recess 11 is bored to a height corresponding to .
隣接する土木用ブロツクＡの接続は、この連結
具１０を使用して次のように行われる。すなわ
ち、土木用ブロツクＡを第５図に示すように配列
した後、半円部４で形成される小円形空間９に連
結具１０を挿入する。このとき、小円形空間９内
に突出する突起７は凹部１１に嵌合され、連結具
１０が完全に小円形空間９内に収められた状態で
は、凹部１１の上端に突起７が配置される。 Adjacent civil engineering blocks A are connected using this connector 10 as follows. That is, after the civil engineering blocks A are arranged as shown in FIG. 5, the connector 10 is inserted into the small circular space 9 formed by the semicircular part 4. At this time, the protrusion 7 protruding into the small circular space 9 is fitted into the recess 11, and when the connector 10 is completely housed in the small circular space 9, the protrusion 7 is arranged at the upper end of the recess 11. .
これにより、土木用ブロツクＡ相互間の動きが
なくなる。また、このように隣接する土木用ブロ
ツクＡが連結されることが、土木用ブロツクＡ自
体の重量と合わせて、第５図のように配列された
土木用ブロツクＡ群を固定することになる。 As a result, there is no movement between the civil engineering blocks A. Further, the fact that adjacent civil engineering blocks A are connected in this manner, together with the weight of the civil engineering blocks A themselves, fixes the group of civil engineering blocks A arranged as shown in FIG.
この点、実開昭61−152025号の土木用ブロツク
においては、セメントにより隣接ブロツクを固定
するため、流水を止める必要があつたのに対し、
本実施例の土木用ブロツクＡにおいては、単に連
結具１０を小円形空間９に挿入するだけで、土木
用ブロツクＡ群の固定が行われる。したがつて、
護岸、砂防等の工事が非常に簡単なものとなる。 In this regard, in the case of the civil engineering block of Utility Model Application Publication No. 152025/1983, it was necessary to stop the water flow because the adjacent blocks were fixed with cement.
In the civil engineering blocks A of this embodiment, simply inserting the connector 10 into the small circular space 9 fixes the civil engineering blocks A group. Therefore,
Construction work such as bank protection and erosion control becomes extremely easy.
このように、安定した状態で土木用ブロツクＡ
を配列することができるので、この上に土木用ブ
ロツクＡを数段にわたり積み重ねても、全体の安
定性が少しも劣化しない。土木用ブロツクＡを垂
直方向に積み重ねるとき、切欠き部５が流水を円
形部３に案内する通路となり、流水の抵抗を小さ
く抑えることができる。なお、この積み重ねに際
し、一段目の土木用ブロツクＡを第１図に示す状
態で配置し、２段目の土木用ブロツクＡを上下逆
の状態で配置するとき、上下方向に隣接する土木
用ブロツクＡの切欠き部５によつて、一個の切欠
き部５で形成される空間の２倍の空間が形成され
るので、流水抵抗は更に小さくなる。また、この
切欠き部５の角部を丸く形成することにより、人
体がその角部に触れた場合の擦傷を防ぐことが可
能となる。 In this way, civil engineering block A can be moved in a stable state.
can be arranged, so even if civil engineering blocks A are stacked on top of this in several stages, the overall stability will not deteriorate in the slightest. When the civil engineering blocks A are stacked vertically, the notch 5 becomes a passageway for guiding running water to the circular part 3, and the resistance of running water can be kept low. In addition, when stacking, if the first stage civil engineering block A is arranged as shown in Fig. 1 and the second stage civil engineering block A is arranged upside down, the vertically adjacent civil engineering blocks Since the notch 5 of A forms a space twice as large as the space formed by one notch 5, the water flow resistance becomes even smaller. Furthermore, by rounding the corners of the notch 5, it is possible to prevent scratches when a human body touches the corners.
このようにして、土木用ブロツクＡを固定した
後、円形部３内の空間や円形空間８等に、栗石１
２等を投入すると良い。この栗石１２は、海底や
川底のヘドロ等が水の流動により土木用ブロツク
Ａ群の円形部３内空間や円形空間８内に流れ込む
ときに、フイルタとして働き、流水を浄化する役
割を受け持つ。また、円形部３内の空間や円形空
間８等に石灰石、活性炭等を充填するとき、農薬
汚水や都市下水等の浄化が行われる。 After fixing the civil engineering block A in this way, a chestnut stone 1 is placed in the space inside the circular part 3, the circular space 8, etc.
It is better to put in 2nd class. This chestnut stone 12 acts as a filter and takes on the role of purifying the flowing water when sludge from the seabed or river bottom flows into the space inside the circular part 3 or the circular space 8 of the civil engineering blocks A group due to the flow of water. Furthermore, when filling the space within the circular portion 3, the circular space 8, etc. with limestone, activated carbon, etc., agricultural wastewater, urban sewage, etc. are purified.
また、この土木用ブロツクＡ群を川底、海底等
に敷設すれば、切欠き部５を流路として円形部３
内空間や円形空間８内に自在に水が流動する。し
たがつて、これら円形部３内空間や円形空間８を
魚巣として利用できる。このとき、それら円形部
３内の空間や円形空間８等に有機物或いはその腐
植物を混入した土砂、マツト等を敷くと、エビ、
カニ、魚介類及び微生物等の生息、産卵、孵化に
好適となる環境を作ることができる。 In addition, if this civil engineering block group A is laid on a riverbed, seabed, etc., the notch 5 can be used as a flow path and the circular part 3
Water freely flows within the inner space and circular space 8. Therefore, the space inside the circular portion 3 and the circular space 8 can be used as a fish nest. At this time, if earth and sand, pine, etc. mixed with organic matter or humic plants are spread in the space inside the circular part 3 and the circular space 8, shrimp, etc.
It is possible to create an environment suitable for the inhabitation, spawning, and hatching of crabs, seafood, microorganisms, and the like.
更に、この円形部３内空間や円形空間８内に、
竹や芝等を植生することにより、土木用ブロツク
Ａ群の構造的強度を向上させることができる。 Furthermore, in this circular part 3 internal space and circular space 8,
By growing bamboo, grass, etc., the structural strength of the civil engineering blocks A group can be improved.
なお、以上の例においては、川底、海底等に敷
設する場合について説明した。しかし、これに拘
束されることなく、滑走路、住宅地の造成用等各
種の土木工事に対しても、該土木用ブロツクＡを
使用することができる。 In addition, in the above example, the case where it is laid on a riverbed, seabed, etc. was explained. However, without being restricted by this, the civil engineering block A can also be used for various civil engineering works such as the construction of runways and residential areas.
以上に説明したように、本考案の土木用ブロツ
クにおいては、半円部に補強用鉄筋の突起を突出
させているので、該半円部で形成される小円形空
間に連結具をを挿入することによつて、隣接する
土木用ブロツクを容易に接続することが可能であ
る。また、そのために、流水を堰き止める必要も
ない。したがつて、護岸、砂防等の工事を極めて
簡単な方法により行うことができる。また、本考
案の土木用ブロツクは、安定した形状を持つてい
るので、それを構築して護岸、砂防等の構造体と
したとき、あるいは山積みで保管しているときに
おける安全性も優れている。
As explained above, in the civil engineering block of the present invention, the protrusions of the reinforcing bars protrude from the semicircular part, so that the connector can be inserted into the small circular space formed by the semicircular part. This makes it possible to easily connect adjacent civil engineering blocks. Moreover, there is no need to dam the running water for this purpose. Therefore, construction works such as bank protection and erosion control can be carried out in an extremely simple manner. In addition, the civil engineering blocks of this invention have a stable shape, so they are safe when built into structures such as seawalls and erosion control, or when stored in piles. .
第１図は本考案実施例の土木用ブロツクを示す
斜視図であり、第２図及び第３図はそれぞれその
側面図及び平面図である。また、第４図は該土木
用ブロツクの内部に組み込まれる補強用鉄筋の斜
視図であり、第５図は該土木用ブロツクを配列し
た状態を示し、第６図は接続部に挿入される連結
具の斜視図である。
１……正方形、２……扇形部、３……円形部、
４……半円部、５……切欠き部、６……補強用鉄
筋、７……突起、８……円形空間、９……小円形
空間、１０……連結具、１１……凹部、１２……
栗石。
FIG. 1 is a perspective view showing a civil engineering block according to an embodiment of the present invention, and FIGS. 2 and 3 are a side view and a plan view thereof, respectively. Fig. 4 is a perspective view of reinforcing reinforcing bars incorporated into the civil engineering blocks, Fig. 5 shows the civil engineering blocks arranged, and Fig. 6 shows the connections inserted into the connection parts. It is a perspective view of a tool. 1...square, 2...fan-shaped part, 3...circular part,
4...Semicircular part, 5...Notch part, 6...Reinforcing bar, 7...Protrusion, 8...Circular space, 9...Small circular space, 10...Connector, 11...Recessed part, 12...
Kuriishi.
Claims (1)
の円弧で囲まれる扇形部、中央部に設けた円形部
及び前記正方形の四辺の中点をそれぞれ中心とす
る小径の半円部を切り欠いた平面形状をもち、上
下面の少なくとも一方に、前記扇形部の半径方向
に前記扇形部から前記円形部まで連続する切欠き
を設け、且つ平面方向に内蔵させた環状の補強用
鉄筋の一部を接続部として前記半円部に露出させ
ていることを特徴とする土木用ブロツク。 A fan-shaped part surrounded by arcs of equal diameter centered at the four vertices of the square, a circular part provided in the center, and a semicircular part of a small diameter centered at the midpoint of the four sides of the square were cut out. It has a planar shape, has a notch continuous in the radial direction of the fan-shaped part from the sector-shaped part to the circular part on at least one of the upper and lower surfaces, and has a part of an annular reinforcing reinforcing bar built in in the planar direction. A civil engineering block characterized in that a connecting portion is exposed in the semicircular portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986059370U JPH047222Y2 (en) | 1986-04-18 | 1986-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986059370U JPH047222Y2 (en) | 1986-04-18 | 1986-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62172715U JPS62172715U (en) | 1987-11-02 |
| JPH047222Y2 true JPH047222Y2 (en) | 1992-02-26 |
Family
ID=30890797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986059370U Expired JPH047222Y2 (en) | 1986-04-18 | 1986-04-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH047222Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718142B2 (en) * | 1990-07-19 | 1995-03-01 | ワールド環境コンクリート株式会社 | Riverbed construction method |
-
1986
- 1986-04-18 JP JP1986059370U patent/JPH047222Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62172715U (en) | 1987-11-02 |
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