JP2001011874A - Construction method for structural stud using precast pile - Google Patents
Construction method for structural stud using precast pileInfo
- Publication number
- JP2001011874A JP2001011874A JP11187171A JP18717199A JP2001011874A JP 2001011874 A JP2001011874 A JP 2001011874A JP 11187171 A JP11187171 A JP 11187171A JP 18717199 A JP18717199 A JP 18717199A JP 2001011874 A JP2001011874 A JP 2001011874A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- ready
- pillar
- straight
- cement milk
- 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
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、主に地下工事を
逆打ち工法で施工する場合の工法であって、既製杭を使
用した構真柱の構築方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a method of constructing an underground construction by a reverse driving method, and more particularly to a method of constructing a straight pillar using a ready-made pile.
【０００２】[0002]
【従来の技術】建設工事の工期の短縮化、工事の安全
性、市街地での近接施工の要求から地下工事の逆打ちが
用いられている。逆打ち工法の特徴は、１階スラブを早
期に施工して、地上部と地下部とを同時に施工するもの
である。2. Description of the Related Art Underground construction is used in reverse because of the shortening of the construction period, the safety of the construction, and the demand for close construction in an urban area. The feature of the reverse beating method is that the first-floor slab is constructed at an early stage and the above-ground part and the underground part are constructed at the same time.
【０００３】１階の床スラブを施工するためには、地下
部の柱部材を施工する必要があり、従来、地下部の柱の
施工は地上部からリバース工法、アースドリル工法等の
現場造成杭に構真柱を設置していた。また、近年の既製
杭の大径化にも伴い、既製杭を使用して構真柱を構築す
る方法も提案されている。[0003] In order to construct a floor slab on the first floor, it is necessary to construct a column member in the underground part. Had a tall pillar. Also, with the recent increase in diameter of ready-made piles, a method of constructing a straight pillar using the ready-made piles has been proposed.
【０００４】例えば、特開平６−８８３５０「構真柱建
込み工法」、特許第２８５８９９８号「逆打工法用仮設
対応支柱の施工方法」のように、上端に予め構真柱３３
を固定した既製杭３２を埋設する横真柱の構築方法が考
えられた（図８（ａ））。また、他の方法では、コンク
リート系の既製杭の上端に鋼管杭を固定してなる既製杭
を埋設して、構真柱を、鋼管杭を挿通してコンクリート
系既製杭の上に、構築する工法も提案されている（特許
第２５６７９９０号「地下構築用逆打工法」）。For example, as disclosed in Japanese Unexamined Patent Application Publication No. Hei 6-88350, entitled "Construction method of vertical columns" and Japanese Patent No. 2858998, "Construction method of temporary supporting columns for reverse hitting method"
A method of constructing a horizontal straight column for burying a ready-made pile 32 with the fixed structure was considered (FIG. 8A). In another method, a ready-made pile formed by fixing a steel pipe pile at the upper end of a concrete-based ready-made pile is buried, and a straight pillar is constructed on the concrete-based ready-made pile by inserting the steel pipe pile. A construction method has also been proposed (Japanese Patent No. 2567990 "Back-strike construction method for underground construction").
【０００５】[0005]
【発明が解決しようとする課題】前記既製杭を使用して
構真柱を構築する工法の内、前者の構築方法において
は、既製杭３２と構真柱（Ｈ形鋼、鋼管等）３３とを施
工前に予め一体的に接続して構真柱となし、同時に埋設
している。この方法であると、掘削孔３４が土砂の崩壊
等によって、既製杭１の杭芯Ｙの位置がズレたり、既製
杭が傾斜したりと、いわゆる偏心を起こした場合にも、
既製杭だけでなく構真柱までも偏心を起こしてしまう問
題があった（図８（ｂ）（ａ））。このような問題が生
じた場合、構真柱は上層の荷重を受けるため、傾斜する
と予想外の曲げモーメントが加わるので、構真柱の破壊
を招き、また必要以上に構真柱を大断面としなければな
らなかった。Among the construction methods for constructing a straight pillar using the ready-made pile, the former construction method uses a ready-made pile 32 and a straight pillar (H-shaped steel, steel pipe, etc.) 33. Before construction, they are integrally connected in advance to form a straight pillar and are buried at the same time. According to this method, even when the position of the core Y of the ready-made pile 1 is displaced or the ready-made pile is inclined due to collapse of earth and sand, so-called eccentricity occurs,
There was a problem that eccentricity was caused not only on the ready-made piles but also on the pillars (FIGS. 8B and 8A). When such a problem occurs, the timber column is subjected to the upper layer load, and when it inclines, an unexpected bending moment is applied, so that the timber column is destroyed and the timber column is made larger than necessary. I had to.
【０００６】また、後者の方法であると、コンクリート
系の既製杭の上に構真柱を設置するため、構真柱の重量
がコンクリート系の既製杭に伝わり、コンクリート系の
既製杭を沈設するために使用する根固め液や杭周囲定液
が固化するまで構真柱を構築できない問題があった。ま
た、構真柱の先端がフラットな構造となっているため、
既製杭が偏心等を起こした場合、偏心した既製杭の上に
該横真柱を設置することになるため、強度的にも鉛直精
度的にも不安な要素となっていた。According to the latter method, since a trussed pillar is placed on a concrete-based ready-made pile, the weight of the trussed pillar is transmitted to the concrete-based ready-made pile, and the concrete-based ready-made pile is laid down. Therefore, there is a problem that it is not possible to construct a straight column until the root consolidation solution and the constant solution around the pile are solidified. In addition, because the tip of the straight pillar has a flat structure,
When the pre-made pile is eccentric or the like, the horizontal pillar is set on the pre-made eccentric pile, which is an uneasy factor in both strength and vertical accuracy.
【０００７】[0007]
【課題を解決するための手段】然るにこの発明では、既
製杭の中空部に充填したセメントミルク内に、構真柱の
下端部を沈設したので、前記問題点を解決した。According to the present invention, however, the above-mentioned problem has been solved because the lower end portion of the trussed pillar is submerged in the cement milk filled in the hollow portion of the ready-made pile.
【０００８】即ちこの発明は、以下の工程により構真柱
を建て込むことを特徴とする既製杭を使用した構真柱の
構築方法である。 最上端に位置する中空部を有する既製杭の下端面に、
該最上端に位置する既製杭の中空部を閉塞又は半閉塞す
る端面板を取り付けて構成し、前記既製杭を任意の工法
で埋設する。 前記既製杭の中空部内で、少なくとも上端部にセメン
トミルクを充填する。 前記既製杭の上方の地上で構真柱を鉛直に支持し、下
降した前記構真柱の下端部を前記セメントミルク内に埋
設する。[0008] That is, the present invention is a method of constructing a straight pillar using a ready-made stake, wherein the straight pillar is built by the following steps. On the lower end surface of the ready-made pile having a hollow part located at the uppermost end,
An end plate for closing or semi-closing the hollow portion of the ready-made pile located at the uppermost end is attached, and the ready-made pile is buried by an arbitrary construction method. In the hollow part of the ready-made pile, at least the upper end part is filled with cement milk. A straight pillar is vertically supported on the ground above the ready-made pile, and a lower end of the lowered straight pillar is embedded in the cement milk.
【０００９】また、他の発明は、 最上端に位置する中空部を有する既製杭の下端面に、
該最上端に位置する既製杭の中空部を閉塞又は半閉塞す
る端面板を取り付けて構成し、前記既製杭を任意の工法
で埋設する。 前記既製杭の上方の地上で構真柱を鉛直に支持し、下
降した前記構真柱の下端部を前記既製杭の中空部内に臨
ませる。 地上から注入管を前記既製杭の中空部内に挿入し、該
注入管からセメントミルクを放出し、少なくとも前記構
真柱の下端部をセメントミルクで満たす。 以上の工程により構真柱を建て込むことを特徴とする既
製杭を使用した構真柱の構築方法である。[0009] Further, another invention relates to a method of manufacturing a prefabricated pile having a hollow portion located at the uppermost end, the lower end face of the prefabricated pile.
An end plate for closing or semi-closing the hollow portion of the ready-made pile located at the uppermost end is attached, and the ready-made pile is buried by an arbitrary construction method. The straight pillar is vertically supported on the ground above the ready-made pile, and the lower end of the lowered straight pillar is made to face the hollow part of the ready-made pile. An injection pipe is inserted from the ground into the hollow part of the ready-made pile, and the cement milk is discharged from the injection pipe, and at least the lower end of the straight pillar is filled with the cement milk. This is a method of constructing a straight pillar using a ready-made stake characterized by building a straight pillar by the above process.
【００１０】また、前記において、最上端に位置する既
製杭の端面板の中央部に透孔を穿設した構真柱の構築方
法である。また、構真柱の下端部を先細に形成した構真
柱の構築方法である。また、構真柱は下端部外周に鉄筋
かごを配置して下降した構真柱の構築方法である。更
に、既製杭の掘削孔の地上付近に、ケーシングを嵌挿し
て、該ケーシングの上端の位置決め治具に構真柱を支持
する構真柱の構築方法である。[0010] In the above, there is provided a method of constructing a straight pillar in which a through hole is formed in a center portion of an end face plate of a ready-made pile located at the uppermost end. Also, the present invention relates to a method of constructing a timbered pillar in which the lower end of the timbered pillar is tapered. In addition, the trussed pillar is a method of constructing a trussed pillar that is lowered by arranging a rebar cage around the lower end portion. Furthermore, the present invention relates to a method of constructing a straight pillar in which a casing is inserted near the ground of an excavation hole of a ready-made pile, and the straight pillar is supported by a positioning jig at an upper end of the casing.
【００１１】前記における既製杭とは、予め工場で製造
された杭で、コンクリート系、鋼管系あるいはこれらの
組合せのいずれでも可能である。また、打ち継ぐ場合
に、単位既製杭の構成を異なるものとすることもでき
る。The above-mentioned ready-made pile is a pile manufactured in advance at a factory, and may be any of concrete, steel pipe or a combination thereof. In addition, in the case of joining, the configuration of the unit ready-made piles may be different.
【００１２】また、前記における最上端に位置する既製
杭とは、継ぎ杭の場合の最上の既製杭や、単一杭の場合
のその一の既製杭をも指す。[0012] The uppermost ready-made pile in the above refers to the uppermost ready-made pile in the case of a joint pile, or the one ready-made pile in the case of a single pile.
【００１３】また、前記における工法は、逆打ち工法に
おいて特に有効であるが、下階から順に構築する順打ち
工法の基礎の構築にあたり、既製杭に直接に鉄骨柱（構
真柱）を接合する際にも応用できる。[0013] The above construction method is particularly effective in the reverse construction method. However, when constructing the foundation of the forward construction method constructed in order from the lower floor, a steel column (straight column) is directly joined to the ready-made pile. It can also be applied to situations.
【００１４】また、前記における半閉塞とは、構真柱の
全長が端面板を通過することはできないが、セメントミ
ルクは通過できるように、形成した端面板をいい、例え
ば開口を形成して構成する。[0014] The term "semi-blocking" as used herein refers to an end plate formed so that the entire length of the straight pillar cannot pass through the end plate, but cement milk can pass therethrough. I do.
【００１５】[0015]
【発明の実施の形態】(1) 継ぎ杭からなる既製杭１を従
来任意の方法によって沈設し（図１（ａ））、掘削孔５
の孔壁上端部６に、ケーシング７を鉛直に嵌挿する（図
１（ｂ））。既製杭１は、下端に端面板２８を取付けた
中空部３を有する上杭２と下杭３０とから構成される。 (2) スパイラルオーガー１２等により上杭２の中空部
３、上杭２の上方の掘削孔５内にセメントミルク（圧縮
強度２００ｋｇ／ｃｍ2 程度）１３を注入充填する
（図１（ｂ）（ｃ））。 (3) ケーシング７上に、構真柱の位置決め治具１５を設
置固定する（図１（ｃ））。 (4) Ｈ形鋼からなる構真柱２０は、先端に先細部２２を
形成し、上端に仮止め材２３を固定して形成される。位
置決め治具１５の収容部１８に沿わせて、構真柱２０を
下降する。構真柱２０の下端部を上杭２の中空部３内の
セメントミルク１３内に沈設して、仮止め材２３を位置
決め治具１５に溶接などにより固着する（図１（ｄ）、
図２（ｂ）（ｃ））。 (5) セメントミルク固化後、仮止め材２３を構真柱２０
から分離し、ケーシング７、位置決め治具１５等を掘削
孔５周辺から撤去して、構真柱２０の構築を完了する
（図１（ｅ））。DESCRIPTION OF THE PREFERRED EMBODIMENTS (1) A ready-made pile 1 consisting of a joint pile is laid down by a conventional arbitrary method (FIG. 1 (a)).
The casing 7 is vertically inserted into the upper end portion 6 of the hole wall (FIG. 1B). The ready-made stake 1 is composed of an upper stake 2 having a hollow portion 3 with an end plate 28 attached to a lower end, and a lower stake 30. (2) Cement milk (compression strength of about 200 kg / cm 2 ) 13 is injected and filled into the hollow portion 3 of the upper pile 2 and the excavation hole 5 above the upper pile 2 by a spiral auger 12 or the like (FIG. 1B). c)). (3) A positioning jig 15 for a straight pillar is installed and fixed on the casing 7 (FIG. 1C). (4) The straight pillar 20 made of H-section steel is formed by forming a tapered portion 22 at the tip and fixing a temporary fixing member 23 to the upper end. The straight pillar 20 is lowered along the accommodation portion 18 of the positioning jig 15. The lower end of the trussed pillar 20 is submerged in the cement milk 13 in the hollow portion 3 of the upper pile 2, and the temporary fixing member 23 is fixed to the positioning jig 15 by welding or the like (FIG. 1D,
FIG. 2 (b) (c)). (5) After the cement milk is solidified, the temporary fixing material 23 is fixed to the pillar 20.
Then, the casing 7, the positioning jig 15 and the like are removed from the vicinity of the excavation hole 5 to complete the construction of the vertical pillar 20 (FIG. 1 (e)).
【００１６】[0016]
【実施例１】図１、２に基づきこの発明の実施例を説明
する。Embodiment 1 An embodiment of the present invention will be described with reference to FIGS.
【００１７】この実施例に使用する既製杭１は、所定
数の単位杭を連結してなるいわゆる継ぎ杭から構成し、
最上に位置する既製杭であって、横真柱の根入れ長Ｌと
ほぼ同じ長さの既製杭（以下、上杭２という。図３）
と、該上杭２の下方に位置する既製杭（以下、下杭３０
という。）とする。前記上杭２の下端２ｂに、中央部に
円形の開口２９を有する半開塞構造の端面板２８が固定
されている。また、上杭２は上方に開放した中空部３が
形成されている（図３（ａ）（ｂ））。The ready-made pile 1 used in this embodiment is constituted by a so-called joint pile formed by connecting a predetermined number of unit piles.
A ready-made pile located at the uppermost position and having a length substantially equal to the length L of the horizontal straight pillar (hereinafter referred to as an upper pile 2; FIG. 3).
And a ready-made pile located below the upper pile 2 (hereinafter referred to as a lower pile 30).
That. ). An end plate 28 having a semi-closed structure having a circular opening 29 in the center is fixed to the lower end 2b of the upper pile 2. The upper pile 2 has a hollow portion 3 opened upward (FIGS. 3A and 3B).
【００１８】プレボーリング工法、中掘工法等の任意
の工法で、下杭３０、３０を順次埋設し、最上の下杭３
０ａ（上杭２の直下の下杭）に上杭２を結合して、既製
杭１の全体を所定位置に沈設する（図１（ａ））。ここ
で、最上の下杭３０ａと上杭２との結合は、従来使用さ
れる任意の方法でなされ、溶接の他、ボルトナットや各
種カップリングを使用した無溶接のいずれでも可能であ
る。また、前記上杭２は下杭３０ａを下降させながら結
合する他、下杭３０ａを下降させる前に構築現場で、又
は構築現場に搬入する前に予め結合させておくこともで
きる。The lower piles 30, 30 are sequentially buried by an arbitrary construction method such as a pre-boring construction method, a digging construction method, etc.
The upper pile 2 is connected to 0a (the lower pile immediately below the upper pile 2), and the entire ready-made pile 1 is sunk at a predetermined position (FIG. 1A). Here, the connection between the uppermost lower pile 30a and the upper pile 2 is made by any conventionally used method, and it is possible to use any method other than welding, such as welding without bolts and nuts or various couplings. In addition to the lower pile 30a being connected to the lower pile 30a while lowering, the upper pile 2 may be connected beforehand at the construction site before lowering the lower pile 30a or before being brought into the construction site.
【００１９】掘削孔５の孔壁上端部６に、ケーシング
７を鉛直に嵌挿して、地面２４に載置した鋼板９と前記
ケーシング７とを固定し、補強板１０、１０を固着して
補強する（図１（ｂ））。The casing 7 is inserted vertically into the hole wall upper end 6 of the excavation hole 5, the steel plate 9 placed on the ground 24 and the casing 7 are fixed, and the reinforcing plates 10 and 10 are fixed and reinforced. (FIG. 1B).
【００２０】スパイラルオーガー１２を使用して、上
杭（既製杭１）２の中空部３、上杭２の上方の掘削孔５
内にセメントミルク（圧縮強度２００Ｋｇ／ｃｍ2 程
度）１３を注入する（図１（ｂ）（ｃ））。Using a spiral auger 12, the hollow portion 3 of the upper pile (the ready-made pile 1) 2 and the excavation hole 5 above the upper pile 2
Cement milk (compressive strength: about 200 kg / cm 2 ) 13 is injected into the inside (FIGS. 1B and 1C).
【００２１】ここで、セメントミルク１３を注入する前
に、上杭２の中空部３内及び掘削孔５内に、泥土塊等の
不純物がある場合には、これを除去しておく。例えば、
スパイラルオーガー１２を回転させることにより上杭２
の中空部３内及び掘削孔５内の泥土塊等を抜出して行
う。また、既製杭１を沈設の際に使用した根固め液や杭
周固定液などが、上杭２の上端部に固化して固着してい
た場合には、これらの固化物を、掘削ヘッドを有するス
パイラルオーガー１２等の掘削手投を用いて除去してお
く。Here, before the cement milk 13 is injected, if there is an impurity such as a mud mass in the hollow portion 3 and the excavation hole 5 of the upper pile 2, it is removed. For example,
By rotating the spiral auger 12, the upper pile 2
This is performed by extracting mud masses and the like in the hollow portion 3 and the excavation hole 5. In addition, when the root consolidation liquid, the pile perimeter fixing liquid, and the like used when the ready-made pile 1 is laid are solidified and fixed to the upper end of the upper pile 2, these solidified substances are removed by the excavating head. It is removed by using a drilling method such as a spiral auger 12 having the drill.
【００２２】掘削孔１に挿入されたケーシング７上
に、構真柱の位置決め治具１５を設置固定する（図１
（ｃ））。On the casing 7 inserted into the excavation hole 1, a positioning jig 15 for a straight pillar is installed and fixed (FIG. 1).
(C)).
【００２３】前記位置決め治具１５は、ケーシング７上
に架設される支持杆１６、１６と、該支持杆１６、１６
上に架設される基準杆１７、１７とから平面井桁状に形
成される（図２（ｂ））。前記位置決め治具１５は、支
持杆１６、１６及び基準杆１７、１７間が収容部１８を
形成し、該収容部１８に構真柱２０を嵌挿できるように
なっている。また、前記収容部１８の位置は、構築すべ
き構真柱２０の位置に合わせておく。The positioning jig 15 includes supporting rods 16, 16 laid on the casing 7, and the supporting rods 16, 16.
It is formed in a plane cross-girder shape from the reference rods 17, 17 erected above (FIG. 2 (b)). The positioning jig 15 has an accommodating portion 18 formed between the supporting rods 16, 16 and the reference rods 17, 17, and the straight pillar 20 can be inserted into the accommodating portion 18. In addition, the position of the storage section 18 is adjusted to the position of the straight pillar 20 to be constructed.
【００２４】この実施例に使用する構真柱２０は、Ｈ
形鋼からなり、下端を尖らせて先細部２２を形成してあ
る。前記構真柱２０の上端に、同一断面のＨ形鋼からな
る仮止め材２３を固定しておく。また、前記構真柱２０
は、設置した状態で、上杭２の上端（頭部位置）２ａよ
り上部（長さＬの根入れ部分より上方）に剥離剤を塗布
して、フーチング等構築時、構真柱２０周面から固化し
たセメントミルクを剥がしやすいようにしておくことが
望ましい。The pillar 20 used in this embodiment is H
It is made of shaped steel and has a tapered lower end to form a tapered portion 22. A temporary fixing member 23 made of H-section steel having the same cross section is fixed to the upper end of the straight pillar 20. In addition, the straight pillar 20
Is applied, a release agent is applied above the upper end (head position) 2a of the upper pile 2 (above the rooted portion of the length L), and when building footing or the like, the peripheral surface of the timber pillar 20 It is desirable that the solidified cement milk be easily peeled off from the substrate.
【００２５】前記先細部２２は、Ｈ形鋼の先端を削り、
又は他の逆錘形の別部材を接続して構成する。The tapered portion 22 is formed by cutting the tip of an H-shaped steel,
Alternatively, another inverted weight-shaped separate member is connected.
【００２６】前記位置決め治具１５の収容部１８に、上
方から仮止め材２３を固定した構真柱２０を挿入し、位
置決め治具１５に沿わせて、トランシット等で鉛直を確
認しながら構真柱２０を下降して、構真柱２０の下端部
を上杭２の中空部３内のセメントミルク１３内に沈設す
る（図１（ｄ））。A straight pillar 20 to which the temporary fixing member 23 is fixed is inserted into the accommodation portion 18 of the positioning jig 15 from above, and the vertical jig is checked along the positioning jig 15 with a transit or the like while confirming the vertical position. The pillar 20 is lowered, and the lower end of the straight pillar 20 is sunk in the cement milk 13 in the hollow portion 3 of the upper pile 2 (FIG. 1D).
【００２７】ここで、構真柱２０の芯と既製杭１（上杭
２）の芯が合っていれば、構真柱２０の先細部２２を端
面板２８の開口２９内に臨ませれば、より強固に構真柱
２０と既製杭１（上杭２）とを連結できる。また、上杭
２の端面板２８より上方に沈設することもできる。Here, if the core of the trussed pillar 20 and the core of the ready-made stake 1 (upper stake 2) are aligned, the tapered portion 22 of the trussed pillar 20 is allowed to face the opening 29 of the end face plate 28. Thus, the straight pillar 20 and the ready-made pile 1 (upper pile 2) can be more strongly connected. In addition, the upper pile 2 may be disposed above the end face plate 28.
【００２８】また、構真柱２０の芯と上杭２（既製杭
１）の芯がづれていたり、上杭２が傾斜していた場合に
も、上杭２の中空部３内に構真柱２０の下端部２１を収
容できれば、構真柱２０の構築に支障はない。In addition, even when the core of the trussed pillar 20 is misaligned with the core of the upper stake 2 (the ready stake 1), or when the upper stake 2 is inclined, the stake is set in the hollow portion 3 of the upper stake 2. If the lower end 21 of the pillar 20 can be accommodated, there is no problem in the construction of the straight pillar 20.
【００２９】構真柱２０の仮止め材２３を位置決め治
具１５に溶接などにより固着して、セメントミルク１３
が固化発現まで、構真柱２０を所定位置に保持する。こ
の際、構真柱２０は地上２４の位置決め治具１５で保持
されているので、上杭２の周壁と掘削孔５との間の杭周
固定液、掘削孔５底部の根固め液が固化する前であって
も、構真柱２０を構築することができ、構真柱２０の荷
重が既製杭１に影響を与えることもない。The temporary fixing member 23 of the shaft 20 is fixed to the positioning jig 15 by welding or the like.
Holds the pillar 20 in a predetermined position until solidification appears. At this time, since the trussed pillar 20 is held by the positioning jig 15 on the ground 24, the pile periphery fixing liquid between the peripheral wall of the upper pile 2 and the excavation hole 5 and the root consolidation liquid at the bottom of the excavation hole 5 are solidified. Even before this, the straight pillar 20 can be constructed, and the load of the straight pillar 20 does not affect the ready-made pile 1.
【００３０】セメントミルク固化後、仮止め材２３を
構真柱２０から分離し、ケーシング７、鋼板９、位置決
め治具１５等を掘削孔５周辺から撤去する。以上で、構
真柱２０の構築を完了する（図１（ｅ））。After solidification of the cement milk, the temporary fixing member 23 is separated from the straight pillar 20, and the casing 7, the steel plate 9, the positioning jig 15 and the like are removed from the vicinity of the excavation hole 5. Thus, the construction of the straight pillar 20 is completed (FIG. 1E).
【００３１】以降従来の逆打ち工法と同様に、構真柱２
０の上端部に上階の柱を接合して、基準階スラブ及び上
層の躯体を構築すると共に、地盤を掘りながら構真柱２
０を使用して地階を構築する。Thereafter, as in the conventional reverse striking method, the shaft 2
The upper floor column is joined to the upper end of the slab 0 to construct the reference floor slab and the upper frame, and at the same time digging the ground, the straight pillar 2
Construct basement using zero.
【００３２】前記実施例において、セメントミルクの圧
縮強度を２００ｋｇ／ｃｍ2 程度としたが、構真柱と
の接合強度と経済性とを考慮して、５０〜３００ｋｇ／
ｃｍ 2 程度とすることもできる。In the above embodiment, the pressure of cement milk
Shrink strength 200kg / cmTwo Although it was about,
Considering the joining strength and economy of
cm Two It can also be about.
【００３３】また、前記実施例において、セメントミル
ク１３を閉塞板２８の開口２９から下方に浸透させ、閉
塞板２８の下方の下杭３０ａの中空部内にも、構真柱２
０の周囲のセメントミルク１３層に連続したセメントミ
ルク１３ａ層を形成することができる（図４）。この場
合、上杭２と下杭３０との一体性が高まり、構真柱２０
は既製杭１の全体と強固に接合される。Further, in the above embodiment, the cement milk 13 is made to penetrate downward from the opening 29 of the closing plate 28, and is also inserted into the hollow portion of the lower pile 30 a below the closing plate 28.
A continuous cement milk 13a layer can be formed on the 0 surrounding cement milk 13 layers (FIG. 4). In this case, the integration between the upper pile 2 and the lower pile 30 is enhanced, and
Is firmly joined to the entire ready-made pile 1.
【００３４】また、前記実施例において、構真柱２０の
下端部外周に鉄筋かご２５を嵌装した状態で、下降して
埋設することもできる（図５）。この場合、構真柱２０
の根入れ部分を補強して、既製杭１（上杭２）と構真柱
２０との一体性を更に高めることができるので、根入れ
長さＬ（ほぼ上杭２長さ分）だけ、設けることが望まし
いが、根入れ部分の一部に設けることもできる（図示し
ていない）。Further, in the above embodiment, it is also possible to embed the steel pillar 20 by lowering it with the reinforcing cage 25 fitted on the outer periphery of the lower end of the straight pillar 20 (FIG. 5). In this case, the pillar 20
Can be further strengthened, and the integration between the ready-made pile 1 (upper pile 2) and the straight pillar 20 can be further enhanced. Although it is desirable to provide, it can also be provided in a part of the burial portion (not shown).
【００３５】また、前記実施例において、構真柱２０の
先端を鋭角状に尖らせて先細部２２を形成したが、先細
に形成されていれば、鈍角状、半球形状などその形状は
任意である（図示していない）。Further, in the above embodiment, the tapered portion 22 is formed by sharpening the tip of the straight pillar 20 at an acute angle. However, if the tapered portion is formed, the shape such as an obtuse angle or a hemisphere can be arbitrarily determined. (Not shown).
【００３６】また、前記実施例において、構真柱２０は
先細部２２を形成したので、構真柱２０の建て込み作業
がし易く、特に端面板２８の開口に挿入しやすいが、下
端をフラットに形成した構真柱２０を使用することもで
きる（図６）。Further, in the above embodiment, since the straight pillar 20 has the tapered portion 22, it is easy to install the straight pillar 20. In particular, it is easy to insert the straight pillar 20 into the opening of the end face plate 28, but the lower end is flat. (FIG. 6).
【００３７】また、前記実施例において、端面板２８を
使用したので、高強度のセメントミルク１３が、掘削孔
５の下方に位置する周面固定液などと混ざるおそれな
く、上杭２と構真柱２０とを強固に接合できる。この場
合、開口２９を形成しなければ、上杭２の中空部３が下
方と分離されて、より強固な接合ができる（図示してい
ない）。In the above embodiment, since the end plate 28 is used, the high-strength cement milk 13 does not mix with the peripheral surface fixing liquid located below the excavation hole 5 and the like. The column 20 can be firmly joined. In this case, if the opening 29 is not formed, the hollow portion 3 of the upper pile 2 is separated from the lower portion, and a stronger connection can be made (not shown).
【００３８】また、端面板２８は上杭２の下端又はその
直下の下杭３０ａの上面に設けることが望ましいが、他
の下杭に設けることもできる（図示していない）。The end plate 28 is preferably provided on the lower end of the upper stake 2 or on the upper surface of the lower stake 30a immediately below the upper stake 2, but may be provided on another lower stake (not shown).
【００３９】また、前記実施例において、既製杭１は上
杭２からのみ構成される単杭とすることもできる（図示
していない）Further, in the above embodiment, the ready-made pile 1 may be a single pile composed only of the upper pile 2 (not shown).
【００４０】[0040]
【実施例２】図１〜図７に基づきこの発明の他の構築方
法を説明する。Embodiment 2 Another construction method of the present invention will be described with reference to FIGS.
【００４１】実施例１と同様に、端面板２８を有する
上杭２、下杭３０等の継ぎ杭からなる既製杭１を従来任
意の方法によって、所定位置に沈設する（図１
（ａ））。続いて、既製杭１の掘削孔５の孔壁上端部６
に、鋼管からなるケーシング７を鉛直に嵌装して、地面
２４に載置した鋼板９と前記ケーシング７とを固定し、
補強板１０を固着して補強する（図７（ａ））。また、
実施例１と同様に、上杭２の中空部３内、掘削孔５内の
不純物は予め除いておく。In the same manner as in the first embodiment, the ready-made stake 1 composed of the connecting stakes such as the upper stake 2 and the lower stake 30 having the end plate 28 is sunk at a predetermined position by a conventional arbitrary method (FIG. 1).
(A)). Subsequently, the upper end 6 of the hole wall of the excavation hole 5 of the ready-made pile 1
Then, a casing 7 made of a steel pipe is fitted vertically, and the steel plate 9 placed on the ground 24 and the casing 7 are fixed.
The reinforcing plate 10 is fixed and reinforced (FIG. 7A). Also,
As in the first embodiment, impurities in the hollow portion 3 of the upper pile 2 and the excavation hole 5 are removed in advance.
【００４２】掘削孔５に挿入されたケーシング７上
に、実施例１と同様に、構真柱の位置決め治具１５を設
置固定する（図７（ａ））。前記位置決め治具１５は、
支持杆１６、１６と、基準杆１７、１７とから平面井桁
状に形成され、該井桁状内を構真柱の収容部１８とする
（図２（ｂ））。As in the first embodiment, a positioning jig 15 for a straight pillar is fixed on the casing 7 inserted into the excavation hole 5 (FIG. 7A). The positioning jig 15
The support rods 16 and 16 and the reference rods 17 and 17 are formed in a plane cross-girder shape, and the inside of the cross-girder shape is used as a storage portion 18 of a straight pillar (FIG. 2B).
【００４３】実施例１と同様に、Ｈ形鋼からなる先細
部２２を形成した構真柱２０の上端に、同一断面のＨ形
鋼からなる仮止め材２３を固定しておく。また、前記構
真柱２０は、設置した状態で、上杭２の上端（頭部位
置）２ａより上部（長さＬの根入れ部分より上方）に剥
離剤を塗布して、フーチング等構築時、構真柱２０周面
から固化したセメントミルクを剥がしやすいようにして
おくことが望ましい。As in the first embodiment, a temporary fixing member 23 made of an H-shaped steel having the same cross section is fixed to the upper end of a straight pillar 20 having a tapered portion 22 made of an H-shaped steel. In addition, when the straight pillar 20 is installed, a release agent is applied above the upper end (head position) 2a of the upper pile 2 (above the rooted portion of the length L), and when building footing or the like. It is desirable that solidified cement milk be easily peeled off from the peripheral surface of the pillar 20.
【００４４】前記位置決め治具１５の収容部１８に、上
方から仮止め材２３を固定した構真柱２０を挿入し、位
置決め治具１５に沿わせて、トランシット等で鉛直を確
認しながら構真柱２０を下降して、構真柱２０の下端部
を上杭２の中空部３内に沈設し、仮止め材２３を位置決
め治具１５に溶接などにより固着して構真柱２０を所定
位置に保持する（図７（ａ））。ここで、構真柱２０の
芯と既製杭１（上杭２）の芯が合っていれば、構真柱２
０の先細部２２を端面板２８の開口２９内に臨ませれ
ば、より強固に構真柱２０と既製杭１（上杭２）とを連
結できる。また、上杭２の端面板２８より上方に沈設す
ることもできる。A straight pillar 20 to which the temporary fixing member 23 is fixed is inserted into the accommodation portion 18 of the positioning jig 15 from above, and the vertical jig is checked along the positioning jig 15 with a transit or the like while confirming verticality. The pillar 20 is lowered, the lower end of the straight pillar 20 is sunk in the hollow portion 3 of the upper pile 2, and the temporary fixing member 23 is fixed to the positioning jig 15 by welding or the like, and the straight pillar 20 is positioned at a predetermined position. (FIG. 7A). Here, if the core of the straight pillar 20 and the core of the ready-made pile 1 (upper pile 2) match, the straight pillar 2
When the tapered portion 22 of 0 faces the opening 29 of the end face plate 28, the straight pillar 20 and the ready-made pile 1 (upper pile 2) can be more firmly connected. In addition, the upper pile 2 may be disposed above the end face plate 28.
【００４５】前記構真柱２０の沈設後又は沈設前に、
セメントミルク注入用のトレミー管１４を掘削孔５内を
通り、既製杭１の中空部３内に挿入する（図７（ａ）、
図２鎖線図示１４）。前記トレミー管１４の先端を構真
柱２０の下端（予定位置）付近（端面板２８付近）に位
置させておく。After or before the trussed pillar 20 is laid,
The tremy tube 14 for cement milk injection is inserted into the hollow portion 3 of the ready-made pile 1 through the borehole 5 (FIG. 7A,
FIG. 2 shows a chain line 14). The tip of the tremee tube 14 is located near the lower end (planned position) of the straight pillar 20 (near the end face plate 28).
【００４６】続いて、トレミー管１４の先端からセメ
ントミルク（圧縮強度２００ｋｇ／ｃｍ2 程度）を注
入し、上杭２の中空部３内、上杭２の上方の掘削孔５内
にセメントミルクを充填する（図７（ｂ））。充填完了
後、トレミー管１４を掘削孔５外へ撤去する。Subsequently, cement milk (compressive strength: about 200 kg / cm 2 ) is injected from the tip of the tremee pipe 14, and the cement milk is injected into the hollow portion 3 of the upper pile 2 and the drilling hole 5 above the upper pile 2. Fill (FIG. 7 (b)). After the filling is completed, the tremee pipe 14 is removed out of the borehole 5.
【００４７】ここで、仮止め材２３を位置決め治具１５
に固着してあるので、セメントミルク１３が固化発現ま
で、構真柱２０を所定位置に保持され、既製杭１（上杭
２、下杭３０）の周壁と掘削孔５との間の杭周固定液、
掘削孔５底部の根固め液が固化する前であっても、構真
柱２０を構築することができ、構真柱２０の荷重が既製
杭１に影響を与えることもない。Here, the temporary fixing member 23 is moved to the positioning jig 15.
The solid pillar 20 is held at a predetermined position until the cement milk 13 solidifies, and the pile periphery between the peripheral wall of the ready-made pile 1 (the upper pile 2 and the lower pile 30) and the excavation hole 5 is fixed. Fixative,
Even before the solidification liquid at the bottom of the excavation hole 5 is solidified, the straight pillar 20 can be constructed, and the load on the straight pillar 20 does not affect the ready-made pile 1.
【００４８】セメントミルク固化後、仮止め材２３を
構真柱２０から分離し、ケーシング７、鋼板９、位置決
め治具１５等を掘削孔５周辺から撤去する。以上で、構
真柱２０の構築を完了する（図７（ｃ））。After solidification of the cement milk, the temporary fixing member 23 is separated from the straight pillar 20, and the casing 7, the steel plate 9, the positioning jig 15 and the like are removed from the vicinity of the excavation hole 5. This completes the construction of the pillar 20 (FIG. 7C).
【００４９】以降従来の逆打ち工法と同様に、構真柱２
０の上端部に上階の柱を接合して、基準階スラブ及び上
層の躯体を構築すると共に、地盤を掘りながら構真柱２
０を使用して地階を構築する。Thereafter, similarly to the conventional reverse striking method, the shaft 2
The upper floor column is joined to the upper end of the slab 0 to construct the reference floor slab and the upper frame, and at the same time digging the ground, the straight pillar 2
Construct basement using zero.
【００５０】前記実施例において、セメントミルクの充
填にトレミー管１４を使用したが、従来の他の方法によ
りセメントミルクを充填することもできる。In the above embodiment, the tremy tube 14 is used for filling the cement milk. However, the cement milk can be filled by another conventional method.
【００５１】また、前記実施例におけるセメントミルク
の他の実施例、構真柱２０の他の実施例、既製杭１の他
の実施例などは、前記実施例１と同様である（図４〜図
６等）。Further, other embodiments of the cement milk, other embodiments of the trussed pillar 20, and other embodiments of the ready-made stake 1 in the above embodiment are the same as those of the first embodiment (FIGS. 4 to 4). 6 etc.).
【００５２】また、前記実施例において、既製杭１は上
杭２からのみ構成される単杭とすることもできる（図示
していない）In the above embodiment, the ready-made pile 1 may be a single pile composed only of the upper pile 2 (not shown).
【００５３】[0053]
【発明の効果】既製杭の中空部内に充填したセメントミ
ルク内に構真柱を埋設するので、既製杭が高止り、偏心
等を起こしても、横真柱は該既製杭の位置に左右される
ことなく、鉛直性を保ち所定位置に高精度に設置できる
効果がある。According to the present invention, since the straight pillar is buried in the cement milk filled in the hollow part of the ready-made pile, even if the ready-made pile stops high and eccentricity occurs, the horizontal true pillar is affected by the position of the ready-made pile. This has the effect of being able to be installed at a predetermined position with high accuracy while maintaining verticality.
【００５４】また、既製杭の沈設に際し、根固め液や杭
周固定液を使用した場合において、これらの固化の如何
を問わず、構真柱を横築できるので、施工期間を短縮で
きる効果がある。Further, in the case of using a root consolidation liquid or a pile perimeter fixing liquid when submerging a ready-made pile, regardless of the solidification of the pile, the straight pillar can be laid horizontally, which has the effect of shortening the construction period. is there.
【００５５】また、構真柱を先細とした場合には、先細
部を案内として位置決め治具に嵌挿する作業が効率よく
できる効果がある。In the case where the straight pillar is tapered, there is an effect that the operation of fitting the tapered guide into the positioning jig as a guide can be efficiently performed.
【００５６】また、最上に位置する既製杭の下端に中空
部を塞ぐような端面板を設けたので、セメントミルクを
隔離して鉛直支持力を増強できる。また、端面板の中央
部に開口を設けて、先細とした構真柱の先細部を開口に
臨ませれば、構真柱の接合を強固にできる。更に、構真
柱の下端部に鉄筋かごを配置すれば、上記の１．５〜２
倍程度の耐力を得ることができる。Further, since the end plate for closing the hollow portion is provided at the lower end of the ready-made pile located at the uppermost position, the cement milk can be isolated and the vertical supporting force can be increased. In addition, if an opening is provided in the center of the end face plate so that the tapered part of the straight pillar faces the opening, the joining of the straight pillar can be strengthened. Further, if a reinforcing steel cage is arranged at the lower end of the straight pillar, the above 1.5 to 2
About twice the proof stress can be obtained.
【００５７】また、掘削孔の地上付近に、ケーシングを
嵌挿して、ケーシングの上端の位置決め治具に構真柱を
支持させれば、掘削孔壁の崩壊を防ぎ、セメントミルク
の質の劣化を防止できる。Further, if the casing is inserted near the ground of the drilling hole and the positioning column at the upper end of the casing supports the straight pillar, the wall of the drilling hole is prevented from collapsing and the quality of the cement milk is deteriorated. Can be prevented.
【００５８】また、圧縮強度５０〜３００ｋｇ／ｃｍ2
程度のセメントミルクを使用して構真柱と既製杭とを
付着力により接合れば、摩擦力、鉛直支持力を有し、強
固に固結できるため、構真柱が高耐力を得られる効果が
ある。Further, the compressive strength is 50 to 300 kg / cm 2.
By joining cemented columns and ready-made stakes with adhesive force using a certain amount of cement milk, it has a frictional force and a vertical supporting force, and can be firmly consolidated, so that the reinforced columns can obtain high yield strength There is.
【図１】（ａ）〜（ｅ）は、この発明の実施例１に係る
構築方法を説明する縦断面図である。FIGS. 1A to 1E are longitudinal sectional views illustrating a construction method according to a first embodiment of the present invention.
【図２】実施例で、構真柱を位置決め治具に保持した状
態で、（ａ）は既製杭部分の横断面図、（ｂ）は平面
図、（ｃ）は一部を省略した縦断面図である。FIGS. 2A and 2B are cross-sectional views of a ready-made pile portion, FIG. 2B is a plan view, and FIG. FIG.
【図３】（ａ）はこの発明の実施例に使用する上杭の縦
断面で、（ｂ）は（ａ）のＡ−Ａ線における断面図であ
る。FIG. 3A is a longitudinal section of an upper pile used in the embodiment of the present invention, and FIG. 3B is a sectional view taken along line AA in FIG.
【図４】この発明の他の実施例により構築した構真柱の
縦断面図である。FIG. 4 is a longitudinal sectional view of a straight pillar constructed according to another embodiment of the present invention.
【図５】この発明の他の構真柱を表す縦断面図である。FIG. 5 is a longitudinal sectional view showing another straight pillar according to the present invention.
【図６】同じく他の構真柱を表す縦断面図である。FIG. 6 is a longitudinal sectional view showing another straight pillar.
【図７】（ａ）〜（ｃ）は、この発明の他の構築方法
で、実施例２に係る構築方法を説明する縦断面図であ
る。FIGS. 7A to 7C are longitudinal sectional views illustrating another construction method according to the present invention and illustrating a construction method according to a second embodiment.
【図８】従来例の概略した縦断面図で、（ａ）は正しく
施工された状態、（ｂ）は偏心状態を夫々表す。8A and 8B are schematic longitudinal sectional views of a conventional example, in which FIG. 8A shows a state where the work is correctly performed, and FIG. 8B shows an eccentric state.
１ 既製杭 ２ 上杭 ２ａ 上杭の上端 ３ 上杭の中空部 ５ 掘削孔 ６ 掘削孔の上端部 ７ ケーシング ８ ケーシングの上端 １２ スパイラルオーガ １３ セメントミルク １３ａ セメントミルク １４ トレミー管 １５ 位置決め治具 １８ 位置決め具の収容部 ２０ 構真柱 ２１ 構真柱の下端部 ２２ 構真柱の先細部 ２３ 仮止め材 ２４ 地面 ２５ 鉄筋かご ２８ 端面板 ２９ 端面板の開口 ３０ 下杭（既製杭） ３２ 既製杭（従来例） ３３ 構真柱（従来例） ３４ 掘削孔（従来例） DESCRIPTION OF SYMBOLS 1 Ready-made pile 2 Upper pile 2a Upper end of upper pile 3 Hollow part of upper pile 5 Drilling hole 6 Upper end of drilling hole 7 Casing 8 Upper end of casing 12 Spiral auger 13 Cement milk 13a Cement milk 14 Tremy tube 15 Positioning jig 18 Positioning Storage part of tool 20 Straight pillar 21 Lower end of straight pillar 22 Tapered part of straight pillar 23 Temporary fixing material 24 Ground 25 Reinforced basket 28 End plate 29 Opening of end plate 30 Lower pile (Pre-made pile) 32 Ready-made pile ( Conventional example) 33 Straight pillar (conventional example) 34 Drilling hole (conventional example)
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｅ０４Ｂ 1/35 Ｅ０４Ｂ 1/58 ５０３Ｃ 1/58 ５０３ Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (Reference) E04B 1/35 E04B 1/58 503C 1/58 503
Claims (6)
の下端面に、該最上端に位置する既製杭の中空部を閉塞
又は半閉塞する端面板を取り付けて構成し、前記既製杭
を任意の工法で埋設する。 前記既製杭の中空部内で、少なくとも上端部にセメン
トミルクを充填する。 前記既製杭の上方の地上で構真柱を鉛直に支持し、下
降した前記構真柱の下端部を前記セメントミルク内に埋
設する。 以上の工程により構真柱を建て込むことを特徴とする既
製杭を使用した構真柱の構築方法。An end plate for closing or semi-closing a hollow portion of a ready-made pile located at the uppermost end is attached to a lower end surface of a ready-made pile having a hollow portion located at the uppermost end. It is buried by any method. In the hollow part of the ready-made pile, at least the upper end part is filled with cement milk. A straight pillar is vertically supported on the ground above the ready-made pile, and a lower end of the lowered straight pillar is embedded in the cement milk. A method of constructing a trussed pillar using a ready-made stake, wherein the trussed pillar is built by the above process.
の下端面に、該最上端に位置する既製杭の中空部を閉塞
又は半閉塞する端面板を取り付けて構成し、前記既製杭
を任意の工法で埋設する。 前記既製杭の上方の地上で構真柱を鉛直に支持し、下
降した前記構真柱の下端部を前記既製杭の中空部内に臨
ませる。 地上から注入管を前記既製杭の中空部内に挿入し、該
注入管からセメントミルクを放出し、少なくとも前記構
真柱の下端部をセメントミルクで満たす。 以上の工程により構真柱を建て込むことを特徴とする既
製杭を使用した構真柱の構築方法。2. A prefabricated pile having a hollow portion located at the uppermost end is provided with an end face plate for closing or semi-closing the hollow portion of the prefabricated pile located at the uppermost end. It is buried by any method. The straight pillar is vertically supported on the ground above the ready-made pile, and the lower end of the lowered straight pillar is made to face the hollow part of the ready-made pile. An injection pipe is inserted from the ground into the hollow part of the ready-made pile, and the cement milk is discharged from the injection pipe, and at least the lower end of the straight pillar is filled with the cement milk. A method of constructing a trussed pillar using a ready-made stake, wherein the trussed pillar is built by the above process.
に透孔を穿設した請求項１又は２記載の構真柱の構築方
法。3. The method according to claim 1, wherein a through hole is formed in a central portion of the end face plate of the ready-made pile located at the uppermost end.
又は２記載の構真柱の構築方法。4. The straight pillar according to claim 1, wherein a lower end of the pillar is tapered.
Or the method of constructing a straight pillar according to 2.
下降した請求項１又は２記載の構真柱の構築方法。5. The method according to claim 1, wherein the straight pillar is lowered by arranging a reinforcing cage around the lower end.
を嵌挿して、該ケーシングの上端の位置決め治具に構真
柱を支持する請求項１又は２記載の構真柱の構築方法。6. The method according to claim 1, wherein a casing is inserted near the ground of the excavation hole of the ready-made pile, and the pillar is supported on a positioning jig at the upper end of the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18717199A JP4293297B2 (en) | 1999-07-01 | 1999-07-01 | Construction method of structural pillars using ready-made piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18717199A JP4293297B2 (en) | 1999-07-01 | 1999-07-01 | Construction method of structural pillars using ready-made piles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001011874A true JP2001011874A (en) | 2001-01-16 |
| JP4293297B2 JP4293297B2 (en) | 2009-07-08 |
Family
ID=16201364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18717199A Expired - Lifetime JP4293297B2 (en) | 1999-07-01 | 1999-07-01 | Construction method of structural pillars using ready-made piles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4293297B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014129705A (en) * | 2012-12-28 | 2014-07-10 | Mitani Sekisan Co Ltd | Burying method and tool for burning for pipe for heat exchange |
| CN104563101A (en) * | 2015-01-14 | 2015-04-29 | 济南轨道交通集团有限公司 | Composite pile structure serving as main structure stand column and construction method thereof |
| JP7093089B1 (en) | 2022-02-21 | 2022-06-29 | オリエンタル白石株式会社 | Liner plate retaining wall root fixing member and liner plate retaining wall root fixing method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58150621A (en) * | 1982-03-01 | 1983-09-07 | Komatsu Ltd | Steel pipe pile |
| JPH0393923A (en) * | 1989-09-06 | 1991-04-18 | Mitsui Constr Co Ltd | Connection method of steel pillar of cast-in-place pile and connection structure |
| JPH03119034U (en) * | 1990-03-19 | 1991-12-09 | ||
| JPH05140953A (en) * | 1991-11-15 | 1993-06-08 | Kajima Corp | Building with steel skeleton |
| JPH05156654A (en) * | 1991-12-10 | 1993-06-22 | Takenaka Komuten Co Ltd | Top-down construction method |
| JPH0665924A (en) * | 1992-06-29 | 1994-03-08 | Takenaka Komuten Co Ltd | Structural stud erection method in inverted construction method |
| JPH0688342A (en) * | 1992-09-08 | 1994-03-29 | Ohbayashi Corp | Constructing method of post |
| JPH09217367A (en) * | 1996-02-13 | 1997-08-19 | Toda Constr Co Ltd | Method for building structural central pillar |
| JPH1113067A (en) * | 1997-06-27 | 1999-01-19 | Artes:Kk | Burying construction method for supplementary stud in reverse concreting construction method |
-
1999
- 1999-07-01 JP JP18717199A patent/JP4293297B2/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58150621A (en) * | 1982-03-01 | 1983-09-07 | Komatsu Ltd | Steel pipe pile |
| JPH0393923A (en) * | 1989-09-06 | 1991-04-18 | Mitsui Constr Co Ltd | Connection method of steel pillar of cast-in-place pile and connection structure |
| JPH03119034U (en) * | 1990-03-19 | 1991-12-09 | ||
| JPH05140953A (en) * | 1991-11-15 | 1993-06-08 | Kajima Corp | Building with steel skeleton |
| JPH05156654A (en) * | 1991-12-10 | 1993-06-22 | Takenaka Komuten Co Ltd | Top-down construction method |
| JPH0665924A (en) * | 1992-06-29 | 1994-03-08 | Takenaka Komuten Co Ltd | Structural stud erection method in inverted construction method |
| JPH0688342A (en) * | 1992-09-08 | 1994-03-29 | Ohbayashi Corp | Constructing method of post |
| JPH09217367A (en) * | 1996-02-13 | 1997-08-19 | Toda Constr Co Ltd | Method for building structural central pillar |
| JPH1113067A (en) * | 1997-06-27 | 1999-01-19 | Artes:Kk | Burying construction method for supplementary stud in reverse concreting construction method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014129705A (en) * | 2012-12-28 | 2014-07-10 | Mitani Sekisan Co Ltd | Burying method and tool for burning for pipe for heat exchange |
| CN104563101A (en) * | 2015-01-14 | 2015-04-29 | 济南轨道交通集团有限公司 | Composite pile structure serving as main structure stand column and construction method thereof |
| JP7093089B1 (en) | 2022-02-21 | 2022-06-29 | オリエンタル白石株式会社 | Liner plate retaining wall root fixing member and liner plate retaining wall root fixing method |
| JP2023121248A (en) * | 2022-02-21 | 2023-08-31 | オリエンタル白石株式会社 | Well head foot protection member for liner plate earth-retaining wall, and well head foot protection method of liner plate earth-retaining wall |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4293297B2 (en) | 2009-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101014796B1 (en) | Top-down underground construction method using prefabricated concrete column member as temporary bridge column | |
| CN112323777A (en) | Hollow precast pile for rock embedding and rock embedding construction method using precast pile | |
| JP4013182B2 (en) | Self-supporting mountain retaining wall method and self-supporting mountain retaining wall | |
| KR100698912B1 (en) | Applying method of the PHC pile as the footing with the column of building | |
| JPH08296243A (en) | Construction method for underground structure by precast concrete central pillar | |
| JP5456627B2 (en) | Connection structure and method of connection between pile and steel column | |
| JP2001011874A (en) | Construction method for structural stud using precast pile | |
| JP2790038B2 (en) | Reinforcement method of existing pile foundation building | |
| JP3930954B2 (en) | Construction method of structure | |
| JP3172694B2 (en) | Embedding method of straight pillar in reverse hitting method | |
| JPH10317374A (en) | Method for constructing underground column made of reinforced concrete | |
| JP4178273B2 (en) | Construction method of structural pillars using ready-made piles | |
| JP4675101B2 (en) | Semi-rigid joint structure between concrete pile and foundation slab or foundation beam and its construction method | |
| JP2858997B2 (en) | Temporary support column used for reverse driving method | |
| JPS63280153A (en) | Underground inverted lining method | |
| JP3790310B2 (en) | Construction method of the building by the prior construction of steel frame | |
| JP3281554B2 (en) | How to rebuild underground structures | |
| JPH06108476A (en) | Construction of stud in steel frame structure | |
| KR102583537B1 (en) | Top-down construction method for uneven-slope site | |
| JP3637945B2 (en) | Construction method of base-isolated building by reverse driving method | |
| CN215888268U (en) | Utilize slant steel of steel stand biography power to trade and prop system | |
| JP2011220009A (en) | Erection method of permanent sub-substructural column | |
| JPH108482A (en) | Joined structure between construction center column and pile and posteriorly constructing method for construction center column | |
| KR100441966B1 (en) | Applying Method of Casing as the Concrete Filled Tube | |
| JPS6128774B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 19990701 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060628 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080422 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080603 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080731 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081104 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20081226 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090210 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090331 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120417 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 4293297 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130417 Year of fee payment: 4 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130417 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140417 Year of fee payment: 5 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |