JPS6017898B2 - Construction method of pile foundation with underground wall - Google Patents
Construction method of pile foundation with underground wallInfo
- Publication number
- JPS6017898B2 JPS6017898B2 JP12326880A JP12326880A JPS6017898B2 JP S6017898 B2 JPS6017898 B2 JP S6017898B2 JP 12326880 A JP12326880 A JP 12326880A JP 12326880 A JP12326880 A JP 12326880A JP S6017898 B2 JPS6017898 B2 JP S6017898B2
- Authority
- JP
- Japan
- Prior art keywords
- underground wall
- pile
- wall
- underground
- guide
- 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
Landscapes
- Foundations (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【発明の詳細な説明】
この発明は地中壁付き杭基礎の施工方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing a pile foundation with an underground wall.
この地中壁付き杭基礎は杭と杭とを地中壁で連結し、水
平耐力を向上させかつ不同沈下を低減するようにしたも
のであり、従来においては先づ杭の所要住に合わせて杭
孔を掘削しかつ地中壁の所要厚さ‘こ応じて杭孔間に地
中肇用溝を掘削し、杭孔および地中壁用溝にそれぞれ杭
用鉄筋篭およびＰＣ壁等の地中蟹用鉄筋篭を鰹込んで両
者をコネクターにより接続し、次いでコンクリートを打
設していた。This pile foundation with underground walls connects the piles with an underground wall to improve horizontal bearing capacity and reduce uneven settlement. Pile holes are excavated and underground trenches are dug between the pile holes according to the required thickness of the underground wall, and reinforcing bar cages for piles and PC walls, etc. are installed in the pile holes and the trench for the underground wall, respectively. A reinforcing cage for medium-sized crabs was placed in the bonito shells, the two were connected using connectors, and then concrete was poured.
このような施工方法においては、、杭孔および地中壁用
簿の掘削に際して掘削した壁面がくずれ落ちないように
ペントナィト溶液等の安定液を使用する必要があり、施
工能率が悪いなどの問題点があった。この発明は前記従
釆の問題点を藤消すべく提案されたもので、施工能率の
良い地中壁付き杭基礎の施工方法を提供することを目的
とする。In this construction method, it is necessary to use a stabilizing solution such as pentonite solution to prevent the excavated wall surface from collapsing when excavating pile holes and underground wall registers, resulting in problems such as poor construction efficiency. was there. This invention was proposed to eliminate the problems of the above-mentioned substructures, and an object of the present invention is to provide a construction method for a pile foundation with an underground wall that is highly efficient in construction.
以下この発明を図示する一実施例に基づいて説明する。The present invention will be described below based on an illustrated embodiment.
この発明に係る地中肇付き杭基礎の施工は次に示す順序
に従って行なわれる。■ 第１図に示すように地中壁掘
削位置に地中壁１の所要厚さもしくは地中壁用溝の掘削
幅に等しい間隔においてアングル材からなる水平ガイド
５を設置する。Construction of the underground pile foundation according to the present invention is carried out in the following order. (2) As shown in FIG. 1, horizontal guides 5 made of angle materials are installed at the underground wall excavation position at intervals equal to the required thickness of the underground wall 1 or the excavation width of the trench for the underground wall.
■ 第１図、第２図に示すように水平ガイド５を案内と
して杭まわりすなわち杭２の蓬込み位置を中心にして左
右に所定長さ分だけ地中壁用溝３Ａを掘削する。(2) As shown in FIGS. 1 and 2, using the horizontal guide 5 as a guide, excavate a trench 3A for the underground wall by a predetermined length to the left and right around the pile, that is, around the lowered-in position of the pile 2.
このように杭まわりの地中壁用溝を予め掘削するのは、
次の理由による。（ｉ）杭孔を先に掘削した場合には、
地中壁用溝の切削ずが杭孔に入る恐れがある。仙 地中
壁用溝を掘削する前に杭用鉄筋篭を挿入したこの杭用鉄
筋篭から地中壁との接合用鉄筋あるいはスタ，ンド等を
出すのが難しい。Excavating the underground wall trench around the pile in advance in this way is
Due to the following reasons. (i) If the pile hole is excavated first,
There is a risk that cutting waste from the underground wall trench will enter the pile hole. Sen: It is difficult to take out the reinforcing bars for connection to the underground wall, stands, and so on from the reinforcing bar cage for the piles, which were inserted before excavating the trench for the underground wall.
地盤中に接合用鉄筋あるいはスタンド等を出すと土が付
着し好ましくない。If reinforcing bars or stands are placed in the ground, soil will stick to them, which is undesirable.
さらに、杭から接合用鉄筋が突出していると杭に接する
地中壁用溝の掘削が簸しい。Furthermore, if the joining reinforcing bars protrude from the piles, it is difficult to excavate trenches for underground walls that are in contact with the piles.
Ｏｉｉ）杭孔に比べて地中壁の方が浅いので、掘削の所
要時間は杭孔の方がかかる。Oii) Since the underground wall is shallower than the pile hole, the excavation time required for the pile hole is longer.
すなわち、杭まわりの地中壁用溝を掘削しておけば杭孔
の擬削と同時にその他の作業が行なえる。In other words, if the underground wall trench around the pile is excavated, other work can be done at the same time as the pile hole is excavated.
■ 第１図、第２図に示すように掘削された地中肇用溝
３Ａ内に地中壁溝３と杭孔４とを仕切る垂直ガイド６を
一対で蓬込む。- As shown in FIGS. 1 and 2, a pair of vertical guides 6 that partition the underground wall groove 3 and the pile hole 4 are bent into the excavated underground foot groove 3A.
この垂直ガイド６は図ではチャンネル材とされているが
、その他の形材でもよい。一般に杭と地中壁は十分に接
合されていなければならないが、通常杭と地中壁のコン
クリート打設時期はずれることが多いため、この垂直ガ
イドは杭あるいは地中壁の打設時に一方にコンクリート
が流出するのを防止していることになる。また、垂直ガ
イド６の下部は土中に埋込み、上部は水平ガイド５と取
り合い調整を行ない垂直性を確保するようにされている
。さらに、垂直ガイド６には第６図に示すように接合用
鉄筋７のための孔８あるいはその両面にスタツド９等が
予め設けられている。なお、接合用鉄筋７は馬豚形とさ
れ杭の主筋１０を内包する形状とされている。このよう
に垂直ガイド６は、
（ｉ）コンクリートの止切片、（ｉｉ１接合用部材、肌
杭と地中壁の垂直性の案内、そしての役割を担うこと
になる。Although the vertical guide 6 is shown as a channel material in the figure, it may be made of other shapes. Generally speaking, piles and underground walls must be well connected, but since the concrete placement times for piles and underground walls are often at different times, this vertical guide is used to ensure that one side of the concrete is placed at the same time as the pile or underground wall is being placed. This means that the leakage of the liquid is prevented. Further, the lower part of the vertical guide 6 is buried in the soil, and the upper part engages and adjusts the horizontal guide 5 to ensure verticality. Furthermore, as shown in FIG. 6, the vertical guide 6 is preliminarily provided with a hole 8 for the joining reinforcing bar 7 or a stud 9 on both sides thereof. The reinforcing bars 7 for joining are shaped like a horse and a pig, and are shaped to enclose the main reinforcing bars 10 of the pile. In this way, the vertical guide 6 plays the roles of (i) a concrete stopper, (ii) a joining member, and a guide for the verticality of the skin pile and underground wall.
■ 垂直ガイド６を案内として第３図、第４図に示すよ
うに杭２の所要径に合わせて杭孔４を掘削する。(2) Using the vertical guide 6 as a guide, excavate the pile hole 4 according to the required diameter of the pile 2 as shown in FIGS. 3 and 4.
■ 杭孔４，４に存在する残りの地中壁用溝３Ｂを掘削
する。■ Excavate the remaining underground wall grooves 3B existing in pile holes 4 and 4.
この掘削は■の杭孔４の掘削と同時でもまた先行して行
なっても差し支えない。■ 杭孔４内に鉄筋篭あるいは
鋼管等の杭構成部材１１を蓬込む。■ 第５図に示すよ
うに掘削した地中壁用溝３に合板あるいは波形鉄板等か
らなるウオールケーシング１２を蓬込む。This excavation may be carried out simultaneously with or prior to the excavation of the pile hole 4 in (■). ■ A pile component 11 such as a reinforcing bar cage or a steel pipe is inserted into the pile hole 4. - As shown in Fig. 5, a wall casing 12 made of plywood or corrugated iron plate is inserted into the excavated underground wall groove 3.
第７図、第８図に示すようにこのウオールケーシング１
２は、合板あるいは波形鉄板が骨材（チャンネル、Ｈ形
鋼等）１３およびスベーサ１４により対向して設けられ
、その内部に地中壁構成部材としての縦筋１５および簾
筋１６が配されている。骨材１３には機筋１６が挿入さ
れる挿入孔が形成されており、ウオールケ−シング建込
み前に縦筋１５および横筋１６は予めウオールケーシン
グ１２に取付けられユニット化されている。さらに、こ
のようなウオールケーシング１２は、地中壁長手方向に
複数に分割されており、隣接するウオールケーシングを
重ね合わせて蓬込むようにされている。そのため隣接す
るウオールケーシングの藤筋１６は、ずらして取付けて
ある。また、側圧（土庄、コンクリート圧．の大きさに
応じて骨村１３を増減することができる。■ 第６図に
示すように杭主筋１０と横筋１６を連結する接合用鉄筋
７あるいはスタッド９をセットする。As shown in Figures 7 and 8, this wall casing 1
In 2, plywood or corrugated iron plates are provided facing each other with aggregate (channel, H-beam steel, etc.) 13 and smoother 14, and vertical reinforcements 15 and blind reinforcements 16 as underground wall constituent members are arranged inside. There is. An insertion hole is formed in the aggregate 13, into which a mechanical reinforcement 16 is inserted, and the vertical reinforcement 15 and the horizontal reinforcement 16 are previously attached to the wall casing 12 to form a unit before the wall casing is erected. Furthermore, such wall casing 12 is divided into a plurality of parts in the longitudinal direction of the underground wall, and adjacent wall casings are overlapped and folded into each other. Therefore, the rattan strips 16 of adjacent wall casings are installed in a shifted manner. In addition, the bone thickness 13 can be increased or decreased depending on the magnitude of the lateral pressure (soil pressure, concrete pressure.) ■ As shown in Figure 6, the connecting reinforcing bars 7 or studs 9 connecting the pile main reinforcement 10 and the horizontal reinforcement 16 are set.
■ ウオールケーシング１２の頂部を水平ガイド５に取
付ける。■ Attach the top of the wall casing 12 to the horizontal guide 5.
■ 杭および地中壁のコンクリートを打設する。■ Place concrete for piles and underground walls.
なお、第９図に示すように地中壁用溝３の幅がウオール
ケーシング１２の幅より大きい場合には一対の垂直ガイ
ド６につなぎ材１７を取付け、これによりウオールケー
シング１２と水平ガイド５の取合いを行なう。前述のと
おりこの発明に係る施工方法によれば次のような効果が
得られる。In addition, as shown in FIG. 9, when the width of the underground wall groove 3 is larger than the width of the wall casing 12, a connecting material 17 is attached to the pair of vertical guides 6, thereby connecting the wall casing 12 and the horizontal guide 5. conduct a negotiation. As described above, the construction method according to the present invention provides the following effects.
■ 安定液を用いず施工能率の良い施工ができる。■ Efficient construction is possible without using stabilizing liquid.
■ 水平ガイドおよび垂直ガイドを案内に正確な掘削が
できる。■ Accurate excavation is possible using the horizontal and vertical guides.
■ ウオールケーシングに予め鉄筋を組み込んでこくこ
とができる。■ Reinforcement bars can be pre-assembled into the wall casing.
■ ウオールケーシングを分割挿入できるので施工がし
易い。■ Easy to install because the wall casing can be inserted separately.
第１図、第２図、第３図、第４図および第５図はこの発
明に係る施工方法を工程順に示した概略図、第６図は杭
孔と地中壁用溝との接合部分を示す斜視図、第７図、第
８図および第９図はウオールケーシングを示す平面図、
正面図および断面図である。
１…地中壁、２・・・杭、３，３Ａ，３８・・・地中壁
用溝、４・・・杭孔、５・・・水平ガイド、６・・・垂
直ガイド、７・・・接合用鉄筋、８・・・孔、９…スタ
ッド、１０・・・杭主筋、１ １・・・杭構成部材、１
２・・・ウオールケーシング、１３・・・骨材、１」・
・・スベーサ、１５・・・縦筋、１６・・・横筋、１，
つなぎ材。
第１図第２図
第３図
第４図
第５図
第６図
第７図
第８図
第９図Figures 1, 2, 3, 4, and 5 are schematic diagrams showing the construction method according to the present invention in the order of steps, and Figure 6 shows the joint between the pile hole and the underground wall trench. 7, 8 and 9 are plan views showing the wall casing,
They are a front view and a sectional view. 1... Underground wall, 2... Pile, 3, 3A, 38... Underground wall groove, 4... Pile hole, 5... Horizontal guide, 6... Vertical guide, 7...・Connecting reinforcing bars, 8... Holes, 9... Studs, 10... Pile main reinforcement, 1 1... Pile constituent members, 1
2... Wall casing, 13... Aggregate, 1''・
...Subesa, 15...Vertical stripe, 16...Horizontal stripe, 1,
Tie material. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9
Claims (1)
この水平ガイドを案内として杭まわりの地中壁用溝を掘
削した後、この地中壁用溝内に地中壁用溝と杭孔とを仕
切る垂直ガイドを建込み、この垂直ガイドを案内として
杭孔を掘削するとともに残りの地中壁用溝を掘削し、杭
孔に杭構成部材を建込むとともに地中壁用溝にウオール
ケーシングおよび地中壁用構成部材を建込んだ後コンク
リートを打設することを特徴とする地中壁付き杭基礎の
施工方法。1. After installing a horizontal guide at the underground wall excavation position on the ground and excavating an underground wall trench around the pile using this horizontal guide as a guide, insert the underground wall trench and pile hole into the underground wall trench. Using this vertical guide as a guide, excavate the pile hole and excavate the remaining underground wall trench, install the pile components in the pile hole, and install the wall casing and wall casing in the underground wall trench. A method for constructing a pile foundation with an underground wall, characterized by pouring concrete after erecting components for the underground wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12326880A JPS6017898B2 (en) | 1980-09-05 | 1980-09-05 | Construction method of pile foundation with underground wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12326880A JPS6017898B2 (en) | 1980-09-05 | 1980-09-05 | Construction method of pile foundation with underground wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5748018A JPS5748018A (en) | 1982-03-19 |
| JPS6017898B2 true JPS6017898B2 (en) | 1985-05-07 |
Family
ID=14856350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12326880A Expired JPS6017898B2 (en) | 1980-09-05 | 1980-09-05 | Construction method of pile foundation with underground wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6017898B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2550585B2 (en) * | 1987-06-11 | 1996-11-06 | 三井造船株式会社 | Heat resistant alkaline paint |
| GB0124991D0 (en) * | 2001-10-17 | 2001-12-05 | Cementation Found Skanska Ltd | Perimeter walls |
| CN105735236B (en) * | 2016-03-17 | 2018-05-04 | 中铁十六局集团北京轨道交通工程建设有限公司 | The soil body pre-add solid method that continuous wall trench underground is constructed in a kind of thick mud layer |
| CN111705786A (en) * | 2020-03-27 | 2020-09-25 | 中铁四局集团第二工程有限公司 | Method for vertical combination construction of composite stratum underground continuous wall and cast-in-situ bored pile |
-
1980
- 1980-09-05 JP JP12326880A patent/JPS6017898B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5748018A (en) | 1982-03-19 |
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