JP3026131B2 - Retaining wall structure and its construction method - Google Patents
Retaining wall structure and its construction methodInfo
- Publication number
- JP3026131B2 JP3026131B2 JP4139310A JP13931092A JP3026131B2 JP 3026131 B2 JP3026131 B2 JP 3026131B2 JP 4139310 A JP4139310 A JP 4139310A JP 13931092 A JP13931092 A JP 13931092A JP 3026131 B2 JP3026131 B2 JP 3026131B2
- Authority
- JP
- Japan
- Prior art keywords
- pile
- retaining wall
- hole
- slab
- concrete
- 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
- Retaining Walls (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、宅地造成、土留め工事
等に用いて好適な擁壁構造とその施工方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall structure suitable for use in residential land development, earth retaining work, and the like, and a construction method thereof.
【０００２】[0002]
【従来の技術】従来、宅地造成や道路造成などの本設用
あるいは仮説用擁壁の一つとして、図３に示すようなＬ
型擁壁が提供されている。このＬ型擁壁１は、地山２の
前方において地山２の下面に埋設された底版部４と、こ
の底版部４から上方に向かって立設された壁体部５とか
ら構成されている。2. Description of the Related Art Conventionally, as one of the retaining walls for main construction or hypothesis such as residential land development and road development, as shown in FIG.
Mold retaining walls are provided. The L-shaped retaining wall 1 includes a bottom slab 4 buried in the lower surface of the ground 2 in front of the ground 2 and a wall 5 erected upward from the bottom slab 4. I have.
【０００３】このようなＬ型擁壁１の施工方法では、壁
高が３ｍ以上の擁壁は宅地造成においてはすべて施工現
場における場所打ち工法により施工されているのが現状
である。すなわち、現場に型枠を設置し、この型枠内に
鉄筋を配筋し、これら鉄筋周囲にコンクリートを打設す
る。そして、前記型枠を脱型して、Ｌ型擁壁１を施工す
る。[0003] In the construction method of such an L-shaped retaining wall 1, at present, all retaining walls having a wall height of 3 m or more are constructed by a cast-in-place method at a construction site in the development of residential land. That is, a formwork is installed on the site, reinforcing bars are arranged in the formwork, and concrete is cast around these reinforcing bars. Then, the mold is released, and the L-shaped retaining wall 1 is constructed.
【０００４】[0004]
【発明が解決しようとする課題】しかし、前記Ｌ型擁壁
１の施工では、型枠設置作業、配筋作業、コンクリート
打設作業、型枠脱型作業が必要になるため、多数の作業
工程を必要とし、Ｌ型擁壁１の施工に長期間を要すると
ともに、Ｌ型擁壁１の施工作業が煩雑であり、Ｌ型擁壁
１の施工に多大な費用を要していた。そして、近年の型
枠工等の熟練を有する作業者の労働力不足から現場での
施工が難しくなっている。また、前記Ｌ型擁壁１は場所
打ち工法で施工されるために、かかるＬ型擁壁１に品質
のバラツキを有する場合があり、Ｌ型擁壁１の安全上問
題があった。However, in the construction of the L-shaped retaining wall 1, since a formwork installation work, a reinforcing work work, a concrete placing work, and a formwork removal work are required, a large number of work steps are required. In addition, the construction of the L-shaped retaining wall 1 requires a long time, and the construction work of the L-shaped retaining wall 1 is complicated, and the construction of the L-shaped retaining wall 1 requires a large cost. In recent years, construction on site has become difficult due to a shortage of labor of skilled workers such as formworkers. In addition, since the L-shaped retaining wall 1 is constructed by a cast-in-place method, the L-shaped retaining wall 1 may have quality variations, and there is a problem in terms of safety of the L-shaped retaining wall 1.
【０００５】本発明は前記課題を有効に解決するもの
で、擁壁の施工期間を短くするとともに、擁壁の施工作
業性を向上させた擁壁構造とその施工方法を提供するこ
とを目的とする。SUMMARY OF THE INVENTION The present invention effectively solves the above-mentioned problems, and has an object to provide a retaining wall structure and a method for constructing the retaining wall, in which the construction period of the retaining wall is shortened and workability of the retaining wall is improved. I do.
【０００６】[0006]
【課題を解決するための手段】請求項１記載の擁壁構造
は、プレキャストコンクリート製壁版部と、該壁版部の
下部に当該壁版部の両側方へ突出する基版部とが一体に
形成され、該基版部に地盤に打ち込まれた杭の上端部を
挿入する貫通孔が設けられ、該貫通孔には杭の軸に沿っ
て漸次拡径したテーパ面が形成され、これら貫通孔と杭
との間に場所打ちコンクリートが打設されてなることを
特徴とするものである。According to a first aspect of the present invention, there is provided a retaining wall structure, wherein a precast concrete wall slab and a base slab protruding to both sides of the wall slab at a lower portion of the wall slab are integrated. The base plate portion is provided with a through hole for inserting an upper end portion of a pile driven into the ground, and the through hole is formed with a tapered surface whose diameter gradually increases along the axis of the pile. It is characterized in that cast-in-place concrete is cast between a hole and a pile.
【０００７】請求項２記載の擁壁構造は、請求項１記載
の擁壁構造であって、前記杭の上端部から鉄筋が突出さ
れ、該鉄筋は、前記杭から貫通孔上側に配されるととも
に、前記コンクリートで覆われていることを特徴とする
ものである。The retaining wall structure according to a second aspect is the retaining wall structure according to the first aspect, wherein a reinforcing bar projects from an upper end portion of the pile, and the reinforcing bar is arranged above the through hole from the pile. And being covered with the concrete.
【０００８】請求項３記載の擁壁の施工方法は、請求項
１記載の擁壁の施工方法であって、あらかじめ前記プレ
キャストコンクリート製壁版部と、該壁版部の下部に当
該壁版部の両側方へ突出する基版部とが一体に形成する
とともに該基版部に貫通孔を形成し、前記杭を地盤に打
ち込み、該杭の上端部を前記貫通孔に挿入し、これら貫
通孔と杭との間に場所打ちコンクリートを打設すること
を特徴とするものである。A third aspect of the present invention is a method of constructing a retaining wall according to the first aspect, wherein the precast concrete wall slab and the wall slab are provided in advance below the wall slab. And a base portion projecting to both sides of the base plate is integrally formed, a through hole is formed in the base plate portion, the pile is driven into the ground, and an upper end of the pile is inserted into the through hole. It is characterized in that cast-in-place concrete is cast between the pile and the pile.
【０００９】[0009]
【作用】請求項１記載の擁壁構造では、プレキャストコ
ンクリート製壁版部と、該壁版部の下部に当該壁版部の
両側方へ突出する基版部とが一体に形成されているた
め、前記壁版部は工場等で施工され、前記壁版部が現場
に搬入される。そして、前記基版部に貫通孔が設けら
れ、この貫通孔に杭の上端部が挿入される。前記貫通孔
には杭の軸に沿って漸次拡径したテーパ面が形成されて
いるため、前記杭の上端部が貫通孔に容易に挿入され
る。これら貫通孔と杭との間に場所打ちコンクリートが
打設されているため、前記テーパ面でコンクリートを押
圧し、このコンクリートで杭を押圧し、前記基版部と杭
とが接合される。In the retaining wall structure according to the first aspect, the precast concrete wall slab and the base slab protruding to both sides of the wall slab are integrally formed at a lower portion of the wall slab. The wall slab is constructed in a factory or the like, and the wall slab is carried into the site. Then, a through hole is provided in the base plate portion, and the upper end of the pile is inserted into the through hole. The through hole is formed with a tapered surface whose diameter gradually increases along the axis of the pile, so that the upper end of the pile is easily inserted into the through hole. Since cast-in-place concrete is cast between these through holes and the pile, concrete is pressed by the tapered surface, and the pile is pressed by this concrete, and the base plate and the pile are joined.
【００１０】請求項２記載の擁壁構造では、請求項１記
載の作用を有するとともに、前記杭の上端部から鉄筋が
突出され、該鉄筋は、前記杭から貫通孔上側に配される
とともに、前記コンクリートで覆われているため、前記
貫通孔の上側がコンクリートで覆われている。[0010] In the retaining wall structure according to the second aspect, while having the function of the first aspect, a reinforcing bar is projected from an upper end portion of the pile, and the reinforcing bar is arranged above the through hole from the pile. Since it is covered with the concrete, the upper side of the through hole is covered with the concrete.
【００１１】請求項３記載の擁壁の施工方法では、あら
かじめ前記プレキャストコンクリート製壁版部と、該壁
版部の下部に当該壁版部の両側方へ突出する基版部とが
一体に形成するとともに該基版部に貫通孔を形成し、前
記杭を地盤に打ち込み、該杭の上端部を前記貫通孔に挿
入し、これら貫通孔と杭との間に場所打ちコンクリート
を打設するため、型枠の設置・脱型作業、配筋作業がな
くされる。According to the third aspect of the present invention, the precast concrete wall slab and the base slab protruding to both sides of the wall slab are integrally formed below the wall slab in advance. To form a through-hole in the base plate portion, drive the pile into the ground, insert the upper end of the pile into the through-hole, and cast cast-in-place concrete between the through-hole and the pile. In addition, the work of installing and removing the formwork and the arrangement of the reinforcing bars are eliminated.
【００１２】[0012]
【実施例】以下、本発明の擁壁構造とその施工方法の一
実施例について、図１を参照しながら説明する。図１に
示すように、符号１０は擁壁構造であり、この擁壁構造
１０は、地盤に打ち込まれた杭１６と、この杭１６に接
合される擁壁部材９とから概略構成されている。この擁
壁部材９は、地盤に立設され、プレキャストコンクリー
ト製外観矩形壁版部１１と、この壁版部１１の下部に一
体形成され、当該壁版部１１の立設方向に直交する両側
方へ突出する基版部１２とから構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a retaining wall structure and a method for constructing the same according to the present invention will be described below with reference to FIG. As shown in FIG. 1, reference numeral 10 denotes a retaining wall structure, and the retaining wall structure 10 is roughly composed of a pile 16 driven into the ground and a retaining wall member 9 joined to the pile 16. . The retaining wall member 9 is erected on the ground, and is formed integrally with a precast concrete appearance rectangular wall slab 11 and a lower portion of the wall slab 11, and on both sides orthogonal to the standing direction of the wall slab 11. And a base plate 12 projecting from
【００１３】前記壁版部１１は、側壁と地山Ｇとの間に
裏込め砂利１３を介在させ、地山Ｇを支持するととも
に、その立設方向に沿って通水孔１４を複数平行に設け
ている。この壁版部１１は、地山Ｇの斜面に沿って複数
列設状態に配置されている。The wall slab 11 supports the ground G by interposing a backfill gravel 13 between the side wall and the ground G, and forms a plurality of water holes 14 in parallel with the standing direction. Provided. The wall slabs 11 are arranged in a plurality of rows along the slope of the ground G.
【００１４】前記基版部１２は、壁版部１１の立設方向
に直交して当該壁版部１１の両側に設けられ、複数の貫
通孔１５を設けている。これら貫通孔１５には、前記杭
１５の上端部がそれぞれ挿入され、この杭１６の軸に沿
って漸次拡径したテーパ面１７が形成され、これら貫通
孔１５と杭１６との間に場所打ちコンクリート１８が打
設されている。前記基版部１２の下側面には、この基版
部１２の位置を決める捨コンクリート１９が設けられ、
この捨コンクリート１９の下側に砂利２０が敷かれてい
る。The base plate portion 12 is provided on both sides of the wall plate portion 11 at right angles to the direction in which the wall plate portion 11 stands, and has a plurality of through holes 15. The upper end of the pile 15 is inserted into each of the through holes 15, and a tapered surface 17 whose diameter is gradually increased along the axis of the pile 16 is formed. Concrete 18 is cast. On the lower side surface of the base plate portion 12, a waste concrete 19 for determining the position of the base plate portion 12 is provided,
Gravel 20 is laid below the waste concrete 19.
【００１５】このような擁壁構造１０の施工方法につい
て説明する。まず、あらかじめ前記壁版部１１と基版部
１２と貫通孔１５とを一体形成する。これらは、工場等
に備えた型枠に鉄筋を配筋し、当該型枠にコンクリート
を打設する。こうして、プレキャストコンクリートから
なる擁壁部材９を構築する。A method for constructing such a retaining wall structure 10 will be described. First, the wall slab 11, the base slab 12, and the through-hole 15 are integrally formed in advance. In these, reinforcing bars are arranged on a formwork provided in a factory or the like, and concrete is poured into the formwork. Thus, the retaining wall member 9 made of precast concrete is constructed.
【００１６】この擁壁部材９の立設対象の地盤を掘削
し、この掘削された地盤に杭１６を打ち込み、この杭１
６の上端部を露出状態にし、前記擁壁部材９を搬入す
る。そして、前記杭１６が打ち込まれた地盤の表面に砂
利２０を敷く。この砂利２０の上に捨コンクリート１９
を打設する。ここで、捨コンクリート１９を水平面に表
面出しする。この捨コンクリート１９の上に前記擁壁部
材９の基版部１２を載置する。このときに、基版部１２
の貫通孔１５に前記杭１６の上端部を挿入する。これら
貫通孔１５と杭１６との間にコンクリート１８を打設す
る。The ground on which the retaining wall member 9 is to be erected is excavated, and a pile 16 is driven into the excavated ground.
The upper end of 6 is exposed, and the retaining wall member 9 is carried in. Then, gravel 20 is laid on the surface of the ground into which the pile 16 has been driven. Discarded concrete 19 on this gravel 20
Is installed. Here, the discarded concrete 19 is exposed on a horizontal plane. The base plate portion 12 of the retaining wall member 9 is placed on the waste concrete 19. At this time, the master
The upper end of the pile 16 is inserted into the through hole 15. Concrete 18 is cast between the through holes 15 and the piles 16.
【００１７】こうして地盤に固定された基版部１２に土
砂を載せ、擁壁部材９の基版部１２を埋設するととも
に、壁版部１４の側壁と地山Ｇとの間に裏込め砂利１３
を介在させて地山Ｇを支持させる。Earth and sand are placed on the base plate portion 12 fixed to the ground in this way, the base plate portion 12 of the retaining wall member 9 is buried, and the backfill gravel 13 is placed between the side wall of the wall plate portion 14 and the ground G.
To support the ground G.
【００１８】このような擁壁構造１０によれば、プレキ
ャストコンクリート製壁版部１１と基版部１２とが一体
形成されているため、前記壁版部１１を工場等で施工で
きる。このため、現場で型枠設置作業、配筋作業、型枠
脱型作業を不要にでき、擁壁部材９の施工に要する作業
工程を少なくできるから、擁壁部材９の施工期間を短く
でき、擁壁部材９の施工に要する費用を低減できる。そ
して、前記擁壁部材９が工場等で施工できることから、
擁壁部材９の品質を向上でき、擁壁部材９の安全性を向
上できる。According to such a retaining wall structure 10, since the precast concrete wall slab 11 and the base slab 12 are integrally formed, the wall slab 11 can be constructed in a factory or the like. This eliminates the need for on-site form setting work, reinforcing arrangement work, and form release work, and reduces the number of work steps required for the construction of the retaining wall member 9, thereby shortening the construction period of the retaining wall member 9. The cost required for installing the retaining wall member 9 can be reduced. And since the said retaining wall member 9 can be constructed in a factory etc.,
The quality of the retaining wall member 9 can be improved, and the safety of the retaining wall member 9 can be improved.
【００１９】また、壁版部１１の両側方へ基版部１２が
形成され、この基版部１２が地盤に打ち込まれた杭１６
に接続されているため、壁版部１１が地山Ｇで押圧され
た場合にあっても、壁版部１１が転倒するおそれをなく
し、壁版部１１の安全性を向上できる。A base plate portion 12 is formed on both sides of the wall slab portion 11, and the base plate portion 12 is
Therefore, even when the wall slab 11 is pressed by the ground pile G, there is no possibility that the wall slab 11 falls down, and the safety of the wall slab 11 can be improved.
【００２０】前記基版部１２の貫通孔１５には、杭１６
の軸に沿って漸次拡径したテーパ面１７が形成されてい
るため、前記杭１６の上端部が貫通孔１５に容易に挿入
され、擁壁部材９と杭１６との接続作業性を向上でき
る。前記貫通孔１５と杭１６との間にコンクリート１８
が打設されて、前記基版部１２と杭１６とが接合される
ため、擁壁部材９の施工作業性を向上できる。したがっ
て、近年の作業者の労働力不足にあっても、擁壁を容易
に施工できる。そして、前記テーパ面１７でコンクリー
ト１８を押圧し、このコンクリート１８で杭１６を押圧
するため、この杭１６を押圧する力が伝達される。In the through hole 15 of the base plate 12, a pile 16
Is formed along the axis, the upper end of the pile 16 is easily inserted into the through-hole 15, and the workability of connection between the retaining wall member 9 and the pile 16 can be improved. . Concrete 18 is provided between the through hole 15 and the pile 16.
And the base plate 12 and the pile 16 are joined, so that the workability of the construction of the retaining wall member 9 can be improved. Therefore, it is possible to easily construct the retaining wall even if the labor of the workers is short in recent years. Then, the concrete 18 is pressed by the tapered surface 17, and the pile 16 is pressed by the concrete 18, so that the force for pressing the pile 16 is transmitted.
【００２１】このような擁壁の施工方法では、あらかじ
め前記プレキャストコンクリートからなる擁壁部材９を
形成し、前記杭１６を地盤に打ち込み、前記杭１６の上
端部を前記貫通孔１５に挿入し、これら貫通孔１５と杭
１６との間にコンクリート１８を打設する。このため、
型枠の設置・脱型作業、配筋作業がなくされ、擁壁の施
工期間を短くでき、擁壁の施工作業性を向上させること
ができる。In such a method of constructing a retaining wall, the retaining wall member 9 made of the precast concrete is formed in advance, the pile 16 is driven into the ground, and the upper end of the pile 16 is inserted into the through hole 15. Concrete 18 is cast between the through holes 15 and the piles 16. For this reason,
Eliminating the work of installing and removing the formwork, and arranging the reinforcing bars, shortening the construction period of the retaining wall, and improving the workability of the retaining wall construction.
【００２２】〈他の実施例〉本発明の擁壁構造とその施
工方法の他の実施例について、図２を参照しながら説明
する。ここで、前記実施例と同様のものについては同一
符号を用いて説明を簡略化する。当該擁壁構造は、プレ
キャストコンクリート製壁版部１１と基版部１２とから
なる擁壁部材９と、地盤に打ち込まれた杭１６とから概
略構成されている。前記壁版部１１は、側壁と地山Ｇと
の間に裏込め砂利１３を介在させ、通水孔１４を複数平
行に設けている。<Other Embodiment> Another embodiment of the retaining wall structure of the present invention and its construction method will be described with reference to FIG. Here, the same components as those in the above embodiment are denoted by the same reference numerals, and the description is simplified. The retaining wall structure is roughly composed of a retaining wall member 9 composed of a precast concrete wall slab 11 and a base slab 12, and a pile 16 driven into the ground. The wall slab 11 has a plurality of water holes 14 in parallel with a backfill gravel 13 interposed between the side wall and the ground G.
【００２３】前記基版部１２は、壁版部１１の両側に設
けられ、複数の貫通孔１５を設け、下側面に捨コンクリ
ート１９、砂利２０を敷いている。前記貫通孔１５に
は、前記杭１５の上端部が挿入され、漸次拡径したテー
パ面１７が形成されている。The base slab 12 is provided on both sides of the wall slab 11, is provided with a plurality of through-holes 15, and has a lower surface to which concrete 19 and gravel 20 are laid. The upper end of the pile 15 is inserted into the through hole 15, and a tapered surface 17 whose diameter is gradually increased is formed.
【００２４】これら貫通孔１５と杭１６との間には、図
２に示すように、コンクリート２４が打設されている。
このコンクリート２４は、前記杭１６の上端部から突出
する複数の鉄筋２５全体を覆っている。この鉄筋２５
は、前記杭１６の軸方向に延在され、この杭１６の上端
部から貫通孔１５の上側に配されている。As shown in FIG. 2, concrete 24 is cast between the through holes 15 and the piles 16.
The concrete 24 covers the entire plurality of reinforcing bars 25 projecting from the upper end of the pile 16. This rebar 25
Extends in the axial direction of the pile 16 and is arranged above the through hole 15 from the upper end of the pile 16.
【００２５】このような擁壁構造１０の施工方法につい
て説明する。まず、あらかじめ工場等でプレキャストコ
ンクリートからなる擁壁部材９を構築する。この擁壁部
材９の立設対象の地盤を掘削し、この地盤に杭１６を打
ち込み、前記擁壁部材９を搬入する。前記掘削された地
盤に砂利２０を敷き、この砂利２０の上に捨コンクリー
ト１９を打設する。この捨コンクリート１９に前記擁壁
部材９の基版部１２を載置する。A method for constructing such a retaining wall structure 10 will be described. First, a retaining wall member 9 made of precast concrete is constructed in advance in a factory or the like. The ground on which the retaining wall member 9 is to be erected is excavated, a pile 16 is driven into the ground, and the retaining wall member 9 is carried in. A gravel 20 is laid on the excavated ground, and a discarded concrete 19 is cast on the gravel 20. The base plate portion 12 of the retaining wall member 9 is placed on the waste concrete 19.
【００２６】この基版部１２の貫通孔１５では、前記杭
１６の鉄筋２５を貫通させ、杭１６の上端部を挿入す
る。これら貫通孔１５と杭１６との間にコンクリート２
４を打設するとともに、このコンクリート２４を基版部
１２の上側に配された鉄筋２５周囲に打設する。この
後、地盤に擁壁部材９の基版部１２を埋設するととも
に、壁版部１４と地山Ｇとの間に裏込め砂利１３を介在
させ、擁壁を施工する。The upper end of the pile 16 is inserted through the through-hole 15 of the base plate 12 through the reinforcing bar 25 of the pile 16. Concrete 2 is inserted between the through hole 15 and the pile 16.
4 and at the same time, the concrete 24 is cast around the reinforcing bar 25 disposed above the base plate 12. Thereafter, the base wall 12 of the retaining wall member 9 is buried in the ground, and the backfill gravel 13 is interposed between the wall slab 14 and the ground G to construct the retaining wall.
【００２７】このような擁壁構造によれば、前記杭１６
から突出された鉄筋２５は、前記貫通孔１５から基版部
１２上側に配されるとともに、前記貫通孔１５と杭１６
との間にコンクリート２４が充填され、このコンクリー
ト２４で基版部１２の上側が覆われる。このため、基版
部１２と杭１６とを強固に接合でき、壁版部１１が転倒
するのを防止でき、擁壁部材９の安全性を向上させるこ
とができる。According to such a retaining wall structure, the pile 16
The reinforcing bar 25 protruding from the through hole 15 is disposed above the base plate 12 from the through hole 15, and
The concrete 24 fills the space between the base plate 12 and the concrete 24. For this reason, the base plate part 12 and the pile 16 can be firmly joined, the wall plate part 11 can be prevented from falling down, and the safety of the retaining wall member 9 can be improved.
【００２８】[0028]
【発明の効果】以上説明したように、本発明の擁壁構造
とその施工方法によれば、以下の効果を奏することがで
きる。請求項１記載の擁壁構造によれば、プレキャスト
コンクリート製壁版部と基版部とが一体形成されている
ため、前記壁版部を工場等で施工できる。このため、現
場で型枠設置・脱型作業、配筋作業を不要にでき、擁壁
の施工に要する作業工程を少なくできるから、擁壁の施
工期間を短くでき、擁壁の施工に要する費用を低減でき
る。そして、前記壁版部と基版部とが工場等で施工でき
ることから、擁壁の品質を向上でき、擁壁の安全性を向
上できる。As described above, according to the retaining wall structure of the present invention and the construction method thereof, the following effects can be obtained. According to the retaining wall structure of the first aspect, since the precast concrete wall slab and the base slab are integrally formed, the wall slab can be constructed in a factory or the like. This eliminates the need for formwork installation, demolding, and rebar arrangement work on site, and reduces the number of work steps required for the construction of the retaining wall. Can be reduced. Since the wall slab and the base slab can be constructed in a factory or the like, the quality of the retaining wall can be improved, and the safety of the retaining wall can be improved.
【００２９】また、壁版部の両側方へ基版部が形成さ
れ、この基版部が地盤に打ち込まれた杭に接続されてい
るため、壁版部が地山等で押圧された場合にあっても、
壁版部が転倒するおそれをなくし、壁版部の安全性を向
上できる。Further, since the base plate portions are formed on both sides of the wall plate portion and are connected to the pile driven into the ground, when the wall plate portion is pressed by the ground or the like. Even so,
The wall slab can be prevented from falling over, and the slab can be improved in safety.
【００３０】前記基版部の貫通孔には、杭の軸に沿って
漸次拡径したテーパ面が形成されているため、前記杭の
上端部が貫通孔に容易に挿入され、基版部と杭との接続
作業性を向上できる。前記貫通孔と杭との間にコンクリ
ートが打設されて、前記基版部と杭とが接合されるた
め、擁壁の施工作業性を向上できる。したがって、近年
の作業者の労働力不足にあっても、擁壁を容易に施工で
きる。そして、前記テーパ面でコンクリートを押圧し、
このコンクリートで杭を押圧するため、この杭を押圧す
る力が伝達される。In the through-hole of the base plate, a tapered surface whose diameter gradually increases along the axis of the pile is formed, so that the upper end of the pile is easily inserted into the through-hole, and Connection workability with a pile can be improved. Since concrete is cast between the through hole and the pile and the base plate and the pile are joined, the workability of the construction of the retaining wall can be improved. Therefore, it is possible to easily construct the retaining wall even if the labor of the workers is short in recent years. Then, press the concrete with the tapered surface,
Since the pile is pressed by the concrete, a force for pressing the pile is transmitted.
【００３１】請求項２記載の擁壁構造によれば、請求項
１記載の効果を奏することができるとともに、前記杭か
ら突出された鉄筋は、前記貫通孔から基版部上側に配さ
れるとともに、この基版部の上側がコンクリートで覆わ
れる。このため、基版部と杭とを強固に接合でき、壁版
部が転倒するのを防止でき、擁壁の安全性を向上させる
ことができる。According to the retaining wall structure of the second aspect, the effect of the first aspect can be achieved, and the reinforcing bar protruding from the pile is disposed above the base plate portion from the through hole. The upper side of the base plate is covered with concrete. For this reason, the base plate portion and the pile can be firmly joined, the wall plate portion can be prevented from tipping over, and the safety of the retaining wall can be improved.
【００３２】請求項３記載の擁壁の施工方法によれば、
あらかじめ前記プレキャストコンクリートからなる壁版
部と基版部とを一体形成し、前記杭を地盤に打ち込み、
前記杭の上端部を前記貫通孔に挿入し、これら貫通孔と
杭との間にコンクリートを打設し、擁壁を施工する。こ
のため、型枠の設置・脱型作業、配筋作業がなくされ、
擁壁の施工期間を短くでき、擁壁の施工作業性を向上さ
せることができる。According to the construction method of the retaining wall according to the third aspect,
In advance, the wall slab and base slab made of the precast concrete are integrally formed, and the pile is driven into the ground,
An upper end of the pile is inserted into the through hole, concrete is poured between the through hole and the pile, and a retaining wall is constructed. For this reason, installation and removal work of formwork and rebar arrangement work are eliminated,
The construction period of the retaining wall can be shortened, and the construction workability of the retaining wall can be improved.
【図１】本発明の擁壁構造の一実施例を示す断面図であ
る。FIG. 1 is a sectional view showing an embodiment of a retaining wall structure according to the present invention.
【図２】図１の他の実施例を示す一部断面図である。FIG. 2 is a partial sectional view showing another embodiment of FIG. 1;
【図３】従来の擁壁構造を示す断面図である。FIG. 3 is a sectional view showing a conventional retaining wall structure.
１０ 擁壁構造 １１ 壁版部 １２ 基版部 １４ 通水孔 １５ 貫通孔 １７ テーパ面 １８・２４ コンクリート ２５ 鉄筋 Reference Signs List 10 retaining wall structure 11 wall slab 12 base slab 14 water passage hole 15 through hole 17 tapered surface 18/24 concrete 25 steel bar
フロントページの続き (56)参考文献 特開 平４−118423（ＪＰ，Ａ) 特開 平２−80718（ＪＰ，Ａ) 特開 平３−8927（ＪＰ，Ａ) 実開 昭48−25504（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 29/02 305 Continuation of the front page (56) References JP-A-4-118423 (JP, A) JP-A-2-80718 (JP, A) JP-A-3-8927 (JP, A) JP-A-48-25504 (JP) , U) (58) Field surveyed (Int. Cl. 7 , DB name) E02D 29/02 305
Claims (3)
該壁版部の下部に当該壁版部の両側方へ突出する基版部
とが一体に形成され、該基版部に地盤に打ち込まれた杭
の上端部を挿入する貫通孔が設けられ、該貫通孔には杭
の軸に沿って漸次拡径したテーパ面が形成され、これら
貫通孔と杭との間に場所打ちコンクリートが打設されて
なることを特徴とする擁壁構造。1. A precast concrete wall slab,
A base portion protruding to both sides of the wall slab portion is integrally formed at a lower portion of the wall slab portion, and a through hole for inserting an upper end portion of a pile driven into the ground is provided in the base plate portion, A retaining wall structure, characterized in that a tapered surface whose diameter gradually increases along the axis of the pile is formed in the through hole, and cast-in-place concrete is cast between the through hole and the pile.
杭の上端部から鉄筋が突出され、該鉄筋は、前記杭から
貫通孔上側に配されるとともに、前記コンクリートで覆
われていることを特徴とする擁壁構造。2. The retaining wall structure according to claim 1, wherein a reinforcing bar projects from an upper end portion of the pile, and the reinforcing bar is disposed above the through hole from the pile and covered with the concrete. Retaining wall structure characterized by being.
て、あらかじめ前記プレキャストコンクリート製壁版部
と、該壁版部の下部に当該壁版部の両側方へ突出する基
版部とが一体に形成するとともに該基版部に貫通孔を形
成し、前記杭を地盤に打ち込み、該杭の上端部を前記貫
通孔に挿入し、これら貫通孔と杭との間に場所打ちコン
クリートを打設することを特徴とする擁壁の施工方法。3. A method for constructing a retaining wall according to claim 1, wherein said precast concrete wall slab is provided in advance, and a base slab protruding below both sides of said wall slab. Are integrally formed and a through-hole is formed in the base plate portion, the pile is driven into the ground, the upper end of the pile is inserted into the through-hole, and cast-in-place concrete is inserted between the through-hole and the pile. Construction method of retaining wall characterized by casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4139310A JP3026131B2 (en) | 1992-05-29 | 1992-05-29 | Retaining wall structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4139310A JP3026131B2 (en) | 1992-05-29 | 1992-05-29 | Retaining wall structure and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0657768A JPH0657768A (en) | 1994-03-01 |
| JP3026131B2 true JP3026131B2 (en) | 2000-03-27 |
Family
ID=15242326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4139310A Expired - Lifetime JP3026131B2 (en) | 1992-05-29 | 1992-05-29 | Retaining wall structure and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3026131B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100382053B1 (en) * | 1999-09-22 | 2003-04-26 | 김우기 | Method for constructing breast wall using micro-file in direct-foundation |
| KR100387998B1 (en) * | 2000-06-29 | 2003-06-18 | 주식회사 팸택 | Block for Containing Wall and Method of Consolidating Base for Containing Wall |
| JP2005036641A (en) * | 2003-06-23 | 2005-02-10 | Fuji Autetsuku:Kk | Construction method for retaining wall |
| KR100774020B1 (en) * | 2006-09-30 | 2007-11-08 | 김근수 | Open concrete wall |
| JP5841082B2 (en) * | 2013-01-30 | 2016-01-06 | ジオスター株式会社 | Precast block that is the foundation of the seawall |
| CN109610407B (en) * | 2018-05-10 | 2020-09-22 | 浙江华东工程建设管理有限公司 | Ecological barricade of landslide prevention based on dead weight is balanced |
-
1992
- 1992-05-29 JP JP4139310A patent/JP3026131B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0657768A (en) | 1994-03-01 |
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