JPS60138119A - Support structure of retaining wall - Google Patents
Support structure of retaining wallInfo
- Publication number
- JPS60138119A JPS60138119A JP24471583A JP24471583A JPS60138119A JP S60138119 A JPS60138119 A JP S60138119A JP 24471583 A JP24471583 A JP 24471583A JP 24471583 A JP24471583 A JP 24471583A JP S60138119 A JPS60138119 A JP S60138119A
- Authority
- JP
- Japan
- Prior art keywords
- retaining wall
- blocks
- block
- cables
- support structure
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の技術分野］
この発明は擁壁の支持構造に係り、特に擁壁用ブロック
で垂直擁壁を形成し、この垂直擁壁の盛土圧に抗して支
持することにより、盛土施工による道路や鉄道等の基礎
部分や壁面の整備を果す擁壁の支持構造に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a retaining wall support structure, and in particular, a structure for forming a vertical retaining wall using retaining wall blocks and supporting the vertical retaining wall against the embankment pressure. In particular, it relates to support structures for retaining walls that maintain the foundations and walls of roads and railways through embankment construction.
［発明の技術的背景］
一般に、盛土施工に際し、盛土の補強および外装のため
に擁壁が形成され、この擁壁には傾斜擁壁や垂直擁壁が
ある。この垂直擁壁の形成に際して、コンクリート製の
プロ・ツクや鋼板材、あるし）は網状鋼材を使用し、盛
土圧に抗して前記垂直擁壁を擁壁背面から抗張材からな
る支持手段により支持している。[Technical Background of the Invention] Generally, when constructing an embankment, a retaining wall is formed to reinforce and exteriorize the embankment, and this retaining wall includes an inclined retaining wall and a vertical retaining wall. When forming this vertical retaining wall, concrete protrusions, steel plate materials, or mesh steel materials are used to support the vertical retaining wall from the back of the retaining wall, which is made of tensile material, against the embankment pressure. It is supported by
これにより、起伏の激しい道路や鉄道等の基礎部分や壁
面の整備に寄与している。This contributes to the maintenance of the foundations and walls of roads and railways with severe ups and downs.
［背景技術の問題点］
ところで、従来の垂直擁壁の支持構造において、擁壁用
ブロックに固着した植込ボルトや板状体からなる接続部
材に、直接前記支持手段たる帯状体の一端を装着し、こ
の帯状体を盛土内に埋設し、帯状体の引抜き摩擦力によ
り盛土圧に抗して垂直擁壁を背面から支持していた。[Problems with the Background Art] By the way, in the conventional vertical retaining wall support structure, one end of the band-shaped body serving as the support means is directly attached to a connection member made of a stud or plate-shaped body fixed to a retaining wall block. However, this strip was buried in the embankment, and the vertical retaining wall was supported from the back against the embankment pressure by the pull-out friction force of the strip.
また、前記擁壁用ブロックの重積作業に際し、各々のブ
ロックの仮止め方策として、−ブ１コック外周面に形成
した凹凸形状と、ブロックの上下方向に穿設した孔部を
貫通する鉄筋とを使用している。In addition, when stacking the blocks for the retaining wall, as a temporary fixing measure for each block, the uneven shape formed on the outer peripheral surface of the block 1 cock and the reinforcing bars that pass through the holes drilled in the vertical direction of the blocks. are using.
しかし、前記帯状体の引抜き摩擦力の大小が盛土の土質
により変化し、特に砂質土における小なる引抜き摩擦力
に際しては、盛土圧によって垂直擁壁が崩壊する恐れが
ある。However, the magnitude of the pull-out friction force of the strip varies depending on the soil quality of the embankment, and especially when the pull-out friction force is small in sandy soil, there is a risk that the vertical retaining wall will collapse due to the embankment pressure.
また、仮止め用としてブロック接合面におりる凹凸接合
と鉄筋のみを使用し、１０００ ｋｇ前後のブロックを
重積すると、重積作業時にブロックが倒伏する恐れがあ
り、ブロック重積作業の安全性および信頼性が低下する
という不都合がある。In addition, if blocks weighing around 1000 kg are stacked together using only uneven joints and reinforcing bars that go down to the block joint surface for temporary fixing, there is a risk that the blocks may collapse during the stacking operation, which reduces the safety of block stacking work. There is also the disadvantage of reduced reliability.
［発明の目的］
そこでこの発明の目的は、上述不都合を除去するために
、４ブロック背面において接続部材により仮止めを行い
、重積作業時にブロックが倒伏するのを防止し、重積作
業の安全性および信頼性を高めるとともに、盛土の土質
にかかわらず垂直擁壁を支持手段により堅固に支持し得
る擁壁の支持構造を実現するにある。[Object of the Invention] Therefore, in order to eliminate the above-mentioned inconvenience, the purpose of the present invention is to temporarily secure the back of the four blocks with a connecting member, to prevent the blocks from falling down during stacking work, and to improve the safety of stacking work. The purpose of the present invention is to provide a support structure for a retaining wall that has improved performance and reliability, and can firmly support a vertical retaining wall by supporting means regardless of the soil quality of the embankment.
［発明の構成］
この目的を達成するためにこの発明は、擁壁用ブロック
を複数個重積して垂直擁壁とした擁壁の支持構造におい
て、前記ブロック背面に２個の前記ブロックを接続する
接続部材を設け、この接続部材を介して索条の一端を固
着するとともにこの索条の他端側には垂直擁壁を支持す
る支持手段を設けたことを特徴とする。[Structure of the Invention] To achieve this object, the present invention provides a retaining wall support structure in which a plurality of retaining wall blocks are piled up to form a vertical retaining wall, in which two of the blocks are connected to the back surface of the block. The present invention is characterized in that a connecting member is provided, one end of the cable is fixed via the connecting member, and a supporting means for supporting the vertical retaining wall is provided at the other end of the cable.
［発明の実施例］
以下図面に基づいてこの発明の実施例を詳細に説明する
。[Embodiments of the Invention] Examples of the present invention will be described in detail below based on the drawings.
第１〜７図はこの発明の第１実施例を示すものである。1 to 7 show a first embodiment of the present invention.
第１．２図において、２は擁壁、４は擁壁用ブロックで
ある。この擁壁用ブロック４を平面からなる平板部６と
、この平板部６の両側端に相互接合すべく形成した接合
腕部８とにより２字状に形成する。つまり、平板部６の
一側端上方部分と他側端下方部分とに接合腕部８ｘ、８
ｙを夫々設ける。また、このブロック４の接合腕部８ｘ
、８ｙに上下方向に貫通する孔部１０ｘ、１ｏｙを夫々
穿設するとともに、ブロック２の接合面１２には接合段
差部１２ａを形成する。この接合段差部１２ａは、前記
平板部６の四辺に平行な方形の所望の対角線方向に表裏
両面を平面移動させて出現させた斜面部１４と、この斜
面部１４の両端に位置する第１平坦部１６と第２平坦部
１８とからなる。In Fig. 1.2, 2 is a retaining wall, and 4 is a retaining wall block. This retaining wall block 4 is formed into a two-letter shape by a flat plate part 6 made of a plane and joint arm parts 8 formed at both ends of this flat plate part 6 to be mutually joined. In other words, the upper portion of one side end of the flat plate portion 6 and the lower portion of the other side end are connected to the arm portions 8x, 8.
y are provided respectively. Also, the joint arm portion 8x of this block 4
, 8y are formed with holes 10x and 1oy that penetrate in the vertical direction, respectively, and a joining step portion 12a is formed on the joining surface 12 of the block 2. This joining step portion 12a includes a slope portion 14 that is made to appear by moving both the front and back surfaces in a desired diagonal direction of a rectangle parallel to the four sides of the flat plate portion 6, and a first flat surface located at both ends of the slope portion 14. It consists of a portion 16 and a second flat portion 18.
また、前記ブロック４内には、植込ポルト２０の受容部
２２を埋設し、この受容部２２にブロック４背面から植
込ポルト２０を晴着する。このブロック４を重積する際
に、第３図に示す如く、２個のブロック４．４の接合段
差部１２ａ、１２ａを利用する接合面１２の凹凸接合と
孔部１０を貫通する鉄筋２４とを利用し、更に、第６図
に示す如く、前記植込ポルト２０に座金２６を介してＬ
形鋼材２８をナツト３０で固着し、２１１ｍのブロック
４を上下方向に接続して仮止めを行う。前記植込ボッし
ト２０とＩ、形ｍ拐２８とで接続部材３２を構成するも
のである。Further, a receiving part 22 for the implantable port 20 is embedded in the block 4, and the implantable port 20 is attached to the receiving part 22 from the back side of the block 4. When stacking these blocks 4, as shown in FIG. Further, as shown in FIG.
The shaped steel material 28 is fixed with nuts 30, and the 211 m blocks 4 are connected in the vertical direction for temporary fixing. The implantation bot 20, I, and the m-shape 28 constitute a connecting member 32.
前記ブロック４の重積作業において、第５．６図に示す
如く、まず、基層部のブロック４を所望位置に載置し、
このブロック４背面の接続部材３またるＬ形鋼材２８に
、索条３４の一端を第１ターンバツクル３６を介して取
着する。また、索条３４の他端には支持手段たるアンカ
プレート３８を第２ターンハソクル４０を介して取着す
る。In the stacking work of the blocks 4, as shown in Fig. 5.6, first, the base block 4 is placed at a desired position,
One end of the cable 34 is attached via a first turnbuckle 36 to the L-shaped steel member 28 that spans the connecting member 3 on the back side of the block 4. Further, an anchor plate 38 serving as a support means is attached to the other end of the cable 34 via a second turn hook 40.
この第２ターンバツクル４０を調整しつつ、前記ブロッ
ク４の平面部分とアンカプレート３８とが平行となるよ
うにアンカプレート３８の下端を地面４２あるいは盛土
表面４２ａに押し込み、アンカプレート３８部分に盛土
を行って転圧し、アンカプレート３８の盛土による埋設
を行う。そして、前記第１ターンバツクル３６により索
条３４の長さ調整を行い、ブロック４の傾きを補正する
。最後に、索条３４および第１ターンバックル３６部分
に盛土を行って転圧し、基層部の盛土作業を終了する。While adjusting this second turnbuckle 40, the lower end of the anchor plate 38 is pushed into the ground 42 or the embankment surface 42a so that the plane part of the block 4 and the anchor plate 38 are parallel, and embankment is performed on the anchor plate 38 part. Then, the anchor plate 38 is buried by embankment. Then, the length of the cable 34 is adjusted by the first turnbuckle 36, and the inclination of the block 4 is corrected. Finally, the cable 34 and first turnbuckle 36 portions are filled with earth and compacted to complete the earthwork of the base layer.
以下、前記接続部材３２によるブロック４の仮止めを行
いつつ、上方向の第２、第３層を形成し、終には垂直擁
壁２を構築する。Thereafter, while temporarily fixing the block 4 using the connecting member 32, the second and third layers in the upper direction are formed, and finally the vertical retaining wall 2 is constructed.
このように、ブロック４の重積作業時の仮止めを完全に
行うことにより、ブロックの倒伏を防止し、安全な重積
作業を行うことができる。In this way, by completely temporarily fixing the blocks 4 during stacking work, it is possible to prevent the blocks from collapsing and perform safe stacking work.
また、垂直擁壁２背面に作用する盛土圧と、索条３４を
介して取付したアンカプレート３８の引張抵抗力との平
衡によって、盛土の安定を図ることができ、粘性土や砂
質上等の盛土質に関係なく擁壁の崩壊を防止することが
できる。In addition, the embankment can be stabilized by balancing the embankment pressure acting on the back side of the vertical retaining wall 2 with the tensile resistance force of the anchor plate 38 attached via the cables 34. It is possible to prevent retaining walls from collapsing regardless of the quality of the embankment.
更に、第７図に示す如く、岩盤４４に近接させて垂直擁
壁２を構築する際には、前記支持手段たるアンカプレー
ト３８の代りに、岩盤４４に埋設するアースアンカ４６
を使用することもでき、盛土の安定性の向上を図ること
ができる。Furthermore, as shown in FIG. 7, when constructing the vertical retaining wall 2 close to the bedrock 44, an earth anchor 46 buried in the bedrock 44 is used instead of the anchor plate 38 serving as the support means.
can also be used to improve the stability of the embankment.
第８図はこの発明の第２実施例を示すものである。この
第２実施例において上述第１実施例と同一機能を果す箇
所には同一符号を付して説明する。FIG. 8 shows a second embodiment of the invention. In this second embodiment, parts that perform the same functions as those in the first embodiment described above are given the same reference numerals and will be explained.
この第２実施例の特徴とするところは、以下の如くであ
る。すなわち、前記接続部材３２をブロック４内に上下
方向に埋設したＵ字状植込ボルト５０と、重積したブロ
ック４のＵ字状植込ボルト５０間に介設しｈＬ形鋼材３
８とで構成した点にある。The features of this second embodiment are as follows. That is, the connecting member 32 is interposed between the U-shaped stud 50 buried vertically in the block 4 and the U-shaped stud 50 of the stacked blocks 4, and the hL-shaped steel material 3
It is located at the point composed of 8 and 8.
この第２実施例の如く構成すれば、接続部拐３２、特に
Ｕ字状植込ボルト５ｏの強度が増加し、ブロック４と索
条３４とのより堅固な接続を果すことができ、垂直擁壁
の支持に寄与するものである。If configured as in the second embodiment, the strength of the connecting part 32, especially the U-shaped stud 5o, is increased, and a more solid connection between the block 4 and the cable 34 can be achieved, and the vertical support It contributes to the support of the wall.
なお、この発明は上述第１、第２実施例に限定されるも
のではなく、種々の応用改変が可能である。Note that this invention is not limited to the above-mentioned first and second embodiments, and can be modified in various ways.
例えば、この発明の第１実施例においては、１本の索条
３４に１枚のアンカプレート３８を取着する構成とした
が、第９図に示す如・く、アンカプレート３８を山形等
の種々形状に変化させ、引張抵抗力を増大させることが
できる。また、第１０図に示す如く、盛土質によって複
数本例えば３本の索条３４−１．３４−２．３４−３を
集結月５２で１本に集結させ、１枚のアンカプレー１・
３８を使用して擁壁を支持する構成とすることも了きる
。更に、第１１図に示す如く、引張抵抗力Ｃ少なる盛土
においては、１本の索条３４に所望１３゜隔毎に複数枚
のアンカプレート３８を装着する構成とすることもでき
る。このため、盛土質によって擁壁の支持構造を種々変
化させることができ、構築現場状況に応じた垂直擁壁の
構築が可能となり、施工を容易に行い得るものである。For example, in the first embodiment of the present invention, one anchor plate 38 is attached to one cable 34, but as shown in FIG. It can be changed into various shapes to increase tensile resistance. In addition, as shown in FIG. 10, depending on the embankment quality, a plurality of cables, for example, three cables 34-1, 34-2, 34-3, are collected into one at a gathering stage 52, and one anchor play 1.
38 may also be used to support the retaining wall. Furthermore, as shown in FIG. 11, in an embankment where the tensile resistance force C is small, a plurality of anchor plates 38 may be attached to one cable 34 at desired intervals of 13 degrees. For this reason, the supporting structure of the retaining wall can be varied depending on the quality of the embankment, making it possible to construct a vertical retaining wall according to the construction site conditions, and making the construction easier.
［発明の効果］
以上詳細に説明した如くこの発明によれば、前記ブロッ
ク背面に２個のブロックを接続する接続部材を設け、こ
の接続部材を介して索条の一端を固着するとともにこの
索条の他端側には垂直擁壁を支持する支持手段を設ける
構成としたので、ブロック背面において接続部材により
仮止めを行い得て、重積作業時のブロックの倒伏を防止
することができ、重積作業の安全性および信頼性を高め
得るとともに、盛土の土質にかかわらず垂直擁壁を支持
手段により堅固に支持し得るという効果を奏する。[Effects of the Invention] As explained in detail above, according to the present invention, a connecting member for connecting two blocks is provided on the back surface of the block, one end of the cable is fixed via this connecting member, and the cable is Since a support means for supporting the vertical retaining wall is provided on the other end side, it is possible to temporarily secure the block with a connecting member on the back side of the block, preventing the block from falling down during stacking work, and preventing heavy loads. The safety and reliability of piling work can be improved, and the vertical retaining wall can be firmly supported by the supporting means regardless of the soil quality of the embankment.
第１〜７図はこの発明の第１実施例を示し、第１図はブ
ロックの正面図、第２図はブロックの平面図、第３図は
ブロック側端の接合状態を示す要部拡大平面図、第４図
は擁壁の斜視図、第５図は擁壁の縦断面側面図、第６図
は接続部材を示す要部拡大断面図、第７図はアースアン
カを示ず擁壁の縦断面側面図である。
第８図はこの発明の第２実施例を示す接続部材の要部拡
大断面図である。
第９．１０．１１図は受圧手段たるアンカプレートの他
の実施例を示す概略図である。
図において、２は擁壁、４はフロック、６は平板部、８
ば接合腕部、１０ｘ、Ｊｏｙは孔部、１２は接合面、１
２ａは接合段差部、・１４は斜面部、１６．１８は第１
、第２平坦部、２０は植込ボルト、２４は鉄筋、２８は
Ｌ形鋼拐、３２は接続部材、３４は索条、３８はアンカ
プレー１−１超はアースアンカ、５０はＵ字状植込ポル
１−である。
代理人 弁理士 西 郷 義 美
代理人 弁理士 原 １）幸 男
し１聞σノイｊ１山（内Ｇに変更なし）第３図
第４図
第７図
第８図
第９図
第１１図
手続補正書印釦
昭和５９年 １月２７日
特許庁長官 若 杉 和 夫 殿
１、事件の表示
昭和５８年特許願第２４４７１５号
２、発明の名称
擁壁の支持構造
３、補正をする者
事件との関係 特許出願人
住 所 東京都港区浜松町２丁目４番２５号名称 岡三
興業株式会社
代表者 ゝ岡 村 雄 次
４、代 理 人 〒１０５ Ｔｕ ０３−４３８−２２
４１ （代表）住 所 東京都港区虎ノ門３丁目４番１
７号５、補正命令の日付 自発
６補正の対象 図面
７、補正の内容 別紙のとおり1 to 7 show a first embodiment of the present invention, FIG. 1 is a front view of the block, FIG. 2 is a plan view of the block, and FIG. 3 is an enlarged plan view of main parts showing the joined state of the side ends of the block. Figure 4 is a perspective view of the retaining wall, Figure 5 is a vertical cross-sectional side view of the retaining wall, Figure 6 is an enlarged cross-sectional view of the main part showing the connecting member, and Figure 7 is the retaining wall without the earth anchor. FIG. FIG. 8 is an enlarged sectional view of a main part of a connecting member showing a second embodiment of the present invention. 9.10.11 is a schematic view showing another embodiment of the anchor plate as the pressure receiving means. In the figure, 2 is a retaining wall, 4 is a flock, 6 is a flat plate part, and 8
1 is the joint arm, 10x, Joy is the hole, 12 is the joint surface, 1
2a is the joining step part, 14 is the slope part, 16.18 is the first
, second flat part, 20 is a stud bolt, 24 is a reinforcing bar, 28 is an L-shaped steel strip, 32 is a connecting member, 34 is a cable, 38 is an anchor play 1-1 and above is an earth anchor, 50 is a U-shaped It is implanted Pol 1-. Agent Patent attorney Yoshimi Saigo Agent Patent attorney Hara 1) Yuki Oshi 1 σ noi j 1 mountain (no change in G) Figure 3 Figure 4 Figure 7 Figure 8 Figure 9 Figure 11 Procedure Amendment button January 27, 1980 Director of the Patent Office Kazuo Wakasugi 1, Indication of the case 1982 Patent Application No. 244715 2, Name of the invention Support structure for retaining wall 3, Person making the amendment Case and Relationship Patent applicant address: 2-4-25 Hamamatsucho, Minato-ku, Tokyo Name: Okasan Kogyo Co., Ltd. Representative: Yuji Okamura 4, Agent: 105 Tu 03-438-22
41 (Representative) Address: 3-4-1 Toranomon, Minato-ku, Tokyo
No. 7 No. 5, Date of amendment order Subject of spontaneous 6 amendment Drawing 7, Contents of amendment As shown in the attached sheet
Claims (1)
壁の支持構造において、前記ブロック背面に２個の前記
ブロックを接続する接続部材を設け、この接続部材を介
して索条の一端を固着するとともにこの索条の他端側に
は垂直擁壁を支持する支持手段を設けたことを特徴とす
る擁壁の支持構造。 ２、前記接続部材は、ブロックに螺着した複数本の植込
ボルトと、重積したブロックの植込ボルト間に架設した
Ｌ形鋼材とからなる接続ｎ叫］である特許請求の範囲第
１項記載の擁壁の支持構造。 ３、前記接続部材は、ブロック内に上下方向に位置すべ
く埋設したＵ字状植込ボルトと、前記重積した２個のブ
ロックのＵ字状植込ボルト間に架設したＬ形鋼材とから
なる接続部材である特許請求の範囲第１項記載の擁壁の
支持構造。[Claims] 1. In a retaining wall support structure in which a plurality of retaining wall blocks are piled up to form a vertical retaining wall, a connecting member for connecting two of the blocks is provided on the back surface of the block, and this connection 1. A retaining wall support structure, characterized in that one end of a cable is fixed via a member, and a support means for supporting a vertical retaining wall is provided at the other end of the cable. 2. The connection member is a connection consisting of a plurality of stud bolts screwed onto the blocks and an L-shaped steel member installed between the stud bolts of the stacked blocks. Support structure for retaining walls as described in Section 1. 3. The connecting member is made up of a U-shaped stud buried vertically within the block and an L-shaped steel installed between the U-shaped studs of the two stacked blocks. The retaining wall support structure according to claim 1, which is a connecting member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24471583A JPS60138119A (en) | 1983-12-27 | 1983-12-27 | Support structure of retaining wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24471583A JPS60138119A (en) | 1983-12-27 | 1983-12-27 | Support structure of retaining wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60138119A true JPS60138119A (en) | 1985-07-22 |
| JPH0250254B2 JPH0250254B2 (en) | 1990-11-01 |
Family
ID=17122830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24471583A Granted JPS60138119A (en) | 1983-12-27 | 1983-12-27 | Support structure of retaining wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60138119A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5002436A (en) * | 1988-05-04 | 1991-03-26 | Schnabel Foundation Company | Soil reinforcement system with adjustable connection system for connecting precast facing panels and soil nails |
| US6802675B2 (en) * | 2002-05-31 | 2004-10-12 | Reinforced Earth Company | Two stage wall connector |
| JP2007314960A (en) * | 2006-05-23 | 2007-12-06 | Kazu Kumagai | Reinforced earth retaining wall structure, and masonry tool for stacking reinforced earth retaining wall |
| JP2008261218A (en) * | 2008-06-26 | 2008-10-30 | Kazu Kumagai | Masonry tool for stacking reinforced earth retaining wall |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220042A (en) * | 1975-08-08 | 1977-02-15 | Sumitomo Electric Ind Ltd | Process for fabricating a preform capable of transmitting light |
| JPS5314844A (en) * | 1976-07-28 | 1978-02-09 | Toyoda Automatic Loom Works | Method of and apparatus for controlling opennend spinning frames |
-
1983
- 1983-12-27 JP JP24471583A patent/JPS60138119A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220042A (en) * | 1975-08-08 | 1977-02-15 | Sumitomo Electric Ind Ltd | Process for fabricating a preform capable of transmitting light |
| JPS5314844A (en) * | 1976-07-28 | 1978-02-09 | Toyoda Automatic Loom Works | Method of and apparatus for controlling opennend spinning frames |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5002436A (en) * | 1988-05-04 | 1991-03-26 | Schnabel Foundation Company | Soil reinforcement system with adjustable connection system for connecting precast facing panels and soil nails |
| US6802675B2 (en) * | 2002-05-31 | 2004-10-12 | Reinforced Earth Company | Two stage wall connector |
| JP2007314960A (en) * | 2006-05-23 | 2007-12-06 | Kazu Kumagai | Reinforced earth retaining wall structure, and masonry tool for stacking reinforced earth retaining wall |
| JP4596548B2 (en) * | 2006-05-23 | 2010-12-08 | 和 熊谷 | Reinforced earth retaining wall structure. |
| JP2008261218A (en) * | 2008-06-26 | 2008-10-30 | Kazu Kumagai | Masonry tool for stacking reinforced earth retaining wall |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0250254B2 (en) | 1990-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |