JPH06322756A - Steel pipe pile connection method - Google Patents
Steel pipe pile connection methodInfo
- Publication number
- JPH06322756A JPH06322756A JP13898193A JP13898193A JPH06322756A JP H06322756 A JPH06322756 A JP H06322756A JP 13898193 A JP13898193 A JP 13898193A JP 13898193 A JP13898193 A JP 13898193A JP H06322756 A JPH06322756 A JP H06322756A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- pipe pile
- inner sheath
- pile
- filling
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 170
- 239000010959 steel Substances 0.000 title claims abstract description 170
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 50
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 238000005452 bending Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000000452 restraining effect Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
(57)【要約】
【目的】 山岳傾斜地での地滑り対策として施工される
抑止杭等での、継手部の強度・曲げ剛性を高く維持し、
施工性の良い鋼管杭の継ぎ杭方法。
【構成】 上鋼管杭１の下端と下鋼管杭２の上端のそれ
ぞれの内側に挿入する補強内鞘管４を介して該上鋼管杭
１と該下鋼管杭２とを逐次接合して建込みを行なう鋼管
杭の継ぎ杭方法において、補強内鞘管４の先端部にシー
ルリング３を装着するとともに前記補強内鞘管４の上方
部分を前記上鋼管杭１の先端内腔に挿入固着しておき、
次いで補強内鞘管４の前記上方部分を除く残余の部分で
ある前記上鋼管杭１の先端から突出した下方部分を前記
下鋼管杭２の先端内腔に挿入した後、前記下鋼管杭２に
穿孔した充填固化材注入用孔７より下鋼管杭２と補強内
鞘管４との間隙に充填固化材８を充填し、上鋼管杭１と
下鋼管杭２とを接合する。補強内鞘管４を下鋼管杭２に
挿入固着しておき、次いで上鋼管杭１を補強内鞘管４に
挿入する場合もある。
(57) [Summary] [Purpose] Maintaining high joint strength and bending rigidity in restraint piles, etc. constructed as a measure against landslides on mountain slopes,
A method of jointing steel pipe piles with good workability. [Structure] The upper steel pipe pile 1 and the lower steel pipe pile 2 are successively joined through a reinforcing inner sheath pipe 4 inserted inside each of the lower end of the upper steel pipe pile 1 and the upper end of the lower steel pipe pile 2 and built. In the method of connecting piles of steel pipe piles, the seal ring 3 is attached to the tip of the reinforcing inner sheath pipe 4, and the upper portion of the reinforcing inner sheath pipe 4 is inserted and fixed to the inner lumen of the upper steel pipe pile 1. Every
Next, after inserting the lower portion projecting from the tip of the upper steel pipe pile 1 which is the remaining portion of the reinforcing inner sheath pipe 4 excluding the upper portion into the tip inner cavity of the lower steel pipe pile 2, The filling and solidifying material 8 is filled into the gap between the lower steel pipe pile 2 and the reinforcing inner sheath pipe 4 through the hole 7 for injecting the filling and solidifying material, and the upper steel pipe pile 1 and the lower steel pipe pile 2 are joined. In some cases, the reinforcing inner sheath pipe 4 is inserted and fixed to the lower steel pipe pile 2, and then the upper steel pipe pile 1 is inserted into the reinforcing inner sheath pipe 4.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、土木・建築、海洋構造
物等の分野における鋼管杭の継ぎ杭方法に関する。特
に、山岳傾斜地での地滑り対策として施工される抑止杭
として用いる鋼管杭の継ぎ杭方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for jointing steel pipe piles in the fields of civil engineering / construction, marine structures and the like. In particular, the present invention relates to a method for connecting steel pipe piles used as a restraining pile to prevent landslides on a mountain slope.
【０００２】[0002]
【従来の技術】従来、鋼管杭の継ぎ杭方法について、特
開平３−９０７０５号公報が公開されている。特開平３
−９０７０５号公報は、図６において示すように、上鋼
管杭１の先端内腔に補強内鞘管４の略半長分を挿入固着
しておき、次いで上鋼管杭１の先端から突出した補強内
鞘管４の略半長分を下鋼管杭２の内腔に挿入、接合し、
逐次建込みを行なう鋼管杭の継ぎ杭方法を開示する。2. Description of the Related Art Conventionally, Japanese Unexamined Patent Publication No. 3-90705 discloses a method of connecting piles of steel pipe piles. JP-A-3
As shown in FIG. 6, in the -90705 gazette, approximately half the length of the reinforcing inner sheath pipe 4 is inserted and fixed in the tip inner cavity of the upper steel pipe pile 1, and then the reinforcement protruding from the tip of the upper steel pipe pile 1 is provided. About half length of the inner sheath pipe 4 is inserted into the inner cavity of the lower steel pipe pile 2 and joined,
A jointing method for steel pipe piles to be sequentially built is disclosed.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上鋼管杭１
と下鋼管杭２とは、上鋼管杭１と下鋼管杭２の継手部に
おいて、例えば山岳傾斜地での地滑りに対処して一体的
に働く必要がある。そのため、特開平３−９０７０５号
公報においては、下鋼管杭２と補強内鞘管４との間隙に
充填固化材８を注入する。この充填固化材８の注入は、
上鋼管杭１の管端に形成した印籠継手６のやや上部から
上鋼管杭１およひ補強内鞘管４を貫通し、補強内鞘管４
の先端部において補強内鞘管４の内側から外側面に開口
するよう取り付けた充填固化材注入管１９により行う。
充填固化材８は、下鋼管杭２と補強内鞘管４との間隙に
充填され、固化する。それにより、上鋼管杭１と下鋼管
杭２とは、上鋼管杭１と補強内鞘管４との固着と相まっ
て、その継手部において、水平方向の力に対して有効に
対抗できるようになる。しかしながら、この鋼管杭の継
ぎ杭方法においては、上述したように、充填固化材注入
管１９が上鋼管杭１および補強内鞘管４を貫通して、鋼
管杭１、２の内部に設けられるため、鋼管杭のボーリン
グ孔への建込み後に行なわれる鋼管杭内部の泥水除去作
業において、ケーシング管を挿入する場合に、またモル
タル充填作業において、トレミー管を挿入する場合に、
充填固化材注入管１９を損傷することがある。上述した
従来の技術には、鋼管杭１、２の内部に充填固化材注入
管１９を設けることに伴って、充填固化材注入管１９が
損傷すると、充填固化材８が漏出し、上鋼管杭１と下鋼
管杭２との継手部の強度・曲げ剛性の低下を招く心配が
あるという問題点がある。尤も、ケーシング管およびト
レミー管の挿入時において、充填固化材注入管１９を損
傷しないように、挿入作業に慎重を期せばよいが、山岳
傾斜地での地滑り対策として抑止杭作業を行なうのに、
その施工性を低下することになるという別の問題点が生
じることになる。By the way, the upper steel pipe pile 1
The lower steel pipe pile 2 and the lower steel pipe pile 2 need to work integrally at the joint portion between the upper steel pipe pile 1 and the lower steel pipe pile 2 by coping with landslides on a mountain slope. Therefore, in Japanese Patent Laid-Open No. 3-90705, the filling and solidifying material 8 is injected into the gap between the lower steel pipe pile 2 and the reinforcing inner sheath pipe 4. The injection of the filling and solidifying material 8 is
The upper steel pipe pile 1 and the reinforcing inner sheath pipe 4 are penetrated from a slightly upper part of the inro joint 6 formed on the pipe end of the upper steel pipe pile 1 to form the reinforcing inner sheath pipe 4.
The filling and solidifying material injection pipe 19 attached so as to open from the inner side to the outer side surface of the reinforced inner sheath tube 4 at the tip end of the.
The filling and solidifying material 8 is filled in the gap between the lower steel pipe pile 2 and the reinforcing inner sheath pipe 4 and solidifies. As a result, the upper steel pipe pile 1 and the lower steel pipe pile 2 can effectively counter the horizontal force at the joint portion thereof, together with the fixation of the upper steel pipe pile 1 and the reinforcing inner sheath pipe 4. . However, in this steel pipe pile joint pile method, as described above, the filling and solidifying material injection pipe 19 penetrates the upper steel pipe pile 1 and the reinforcing inner sheath pipe 4, and is provided inside the steel pipe piles 1 and 2. In the muddy water removal work inside the steel pipe pile performed after the steel pipe pile is installed in the boring hole, when inserting the casing pipe, and when inserting the tremie pipe in the mortar filling work,
The filling and solidifying material injection pipe 19 may be damaged. In the above-mentioned conventional technique, when the filling and solidifying material injection pipe 19 is provided inside the steel pipe piles 1 and 2, and the filling and solidifying material injection pipe 19 is damaged, the filling and solidifying material 8 leaks out, and the upper steel pipe pile 1 and the lower steel pipe pile 2 may cause a decrease in strength and bending rigidity of the joint. Of course, when the casing pipe and the tremie pipe are inserted, careful care should be taken in the insertion work so as not to damage the filling and solidifying material injection pipe 19. However, to perform the restraining pile work as a measure against landslide on a mountain slope,
Another problem arises that the workability is deteriorated.
【０００４】本発明は、従来の技術の有するこのような
問題点に鑑み、上鋼管杭と下鋼管杭との継手部の強度・
曲げ剛性を高く維持し、施工性の良い鋼管杭の継ぎ杭方
法を提供することを目的とする。In view of the above problems of the prior art, the present invention provides the strength / strength of the joint portion between the upper steel pipe pile and the lower steel pipe pile.
An object of the present invention is to provide a joint pile method for steel pipe piles, which maintains high bending rigidity and has good workability.
【０００５】[0005]
【課題を解決するための手段】本発明の鋼管杭の継ぎ杭
方法は、上鋼管杭の下端と下鋼管杭の上端のそれぞれの
内側に挿入する補強内鞘管を介して該上鋼管杭と該下鋼
管杭とを逐次接合して建込みを行なう鋼管杭の継ぎ杭方
法において、補強内鞘管の先端部にシールリングを装着
するとともに前記補強内鞘管の上方部分を前記上鋼管杭
の先端内腔に挿入固着しておき、次いで補強内鞘管の前
記上方部分を除く残余の部分である前記上鋼管杭の先端
から突出した下方部分を前記下鋼管杭の先端内腔に挿入
した後、前記下鋼管杭に穿孔した充填固化材注入用孔よ
り下鋼管杭と補強内鞘管との間隙に充填固化材を充填
し、上鋼管杭と下鋼管杭とを接合することにより構成さ
れる。ここで、上鋼管杭に補強内鞘管を挿入固着するに
あたり、上鋼管杭内で補強内鞘管を位置決めを行うた
め、上鋼管杭内に位置決め金具を設ける。位置決め金具
は、例えば補強内鞘管の挿入を行き止まりにするテーパ
ー部を有するものである。補強内鞘管をこのテーパー部
に当接させて、補強内鞘管の挿入深さを規制し、また上
鋼管杭と補強内鞘管との軸心の芯合わせを正確に行う。
補強内鞘管の先端部には、下鋼管杭と補強内鞘管との間
隙へ注入される充填固化材の漏洩を防止するためのシー
ルリングを装着する。シールリングには、ゴム等の材料
を使用することができる。上鋼管杭と下鋼管杭との接合
は、両者の軸心が合うように行う。そのため、上鋼管杭
の下端と下鋼管杭の上端との接合部は、例えば印籠継手
とする。印籠継手は、上述した位置決め金具と相まっ
て、上鋼管杭及び下鋼管杭と補強内鞘管との間隙を均一
に確保し、その間隙内に充填固化材を隙間なく行き渡ら
せる。充填固化材には、エポキシ樹脂、セメントミル
ク、モルタル等がある。充填固化材を充填した後、充填
固化材の漏出を防止するため、充填固化材注入用孔を例
えばボルト等により閉塞することが好ましい。A method for jointing steel pipe piles according to the present invention relates to a method for connecting steel pipe piles to each other via reinforcing inner sheath pipes inserted inside the lower end of the upper steel pipe pile and the upper end of the lower steel pipe pile, respectively. In the method for jointing piles of steel pipe piles that are sequentially joined with the lower steel pipe pile, a seal ring is attached to the tip of the reinforcing inner sheath pipe and the upper portion of the reinforcing inner sheath pipe is attached to the upper steel pipe pile. After inserting and fixing in the tip lumen, after inserting the lower part protruding from the tip of the upper steel pipe pile, which is the remaining part excluding the upper part of the reinforcing inner sheath pipe, into the tip lumen of the lower steel pipe pile The filling and solidifying material is filled in the gap between the lower steel pipe pile and the reinforcing inner sheath pipe through the filling and solidifying material injection hole formed in the lower steel pipe pile, and the upper steel pipe pile and the lower steel pipe pile are joined together. . Here, when the reinforcing inner sheath pipe is inserted and fixed to the upper steel pipe pile, in order to position the reinforcing inner sheath pipe in the upper steel pipe pile, a positioning metal fitting is provided in the upper steel pipe pile. The positioning member has, for example, a taper portion which makes a dead end of the insertion of the reinforcing inner sheath tube. The reinforced inner sheath pipe is brought into contact with the tapered portion to regulate the insertion depth of the reinforced inner sheath pipe, and the axial centers of the upper steel pipe pile and the reinforced inner sheath pipe are accurately aligned.
A seal ring for preventing leakage of the filled solidified material injected into the gap between the lower steel pipe pile and the reinforced inner sheath pipe is attached to the tip of the reinforced inner sheath pipe. A material such as rubber can be used for the seal ring. The upper steel pipe pile and the lower steel pipe pile are joined so that the axes of both are aligned. Therefore, the joint between the lower end of the upper steel pipe pile and the upper end of the lower steel pipe pile is, for example, an inro joint. The inro joint, together with the above-mentioned positioning metal fitting, ensures a uniform gap between the upper steel pipe pile and the lower steel pipe pile and the reinforced inner sheath pipe, and allows the filling and solidifying material to be spread in the gap without any gap. Filling and solidifying materials include epoxy resin, cement milk, mortar and the like. After the filling and solidifying material is filled, it is preferable to close the filling and solidifying material injection hole with, for example, a bolt in order to prevent leakage of the filling and solidifying material.
【０００６】また、本発明は、上鋼管杭の下端と下鋼管
杭の上端のそれぞれの内側に挿入する補強内鞘管を介し
て該上鋼管杭と該下鋼管杭とを逐次接合して建込みを行
なう鋼管杭の継ぎ杭方法において、補強内鞘管の先端部
にシールリングを装着するとともに前記補強内鞘管の下
方部分を前記下鋼管杭の先端内腔に挿入固着しておき、
次いで補強内鞘管の前記下方部分を除く残余の部分であ
る前記下鋼管杭の先端から突出した上方部分に前記上鋼
管杭の先端内腔を挿入した後、前記上鋼管杭に穿孔した
充填固化材注入用孔より上鋼管杭と補強内鞘管との間隙
に充填固化材を充填し、上鋼管杭と下鋼管杭とを接合す
ることにより構成される。ここで、本発明は、補強内鞘
管を予め下鋼管杭の方に設ける点で、上述した発明（請
求項１）と異なる。これに伴い、上鋼管杭に充填固化材
注入用孔を設ける。Further, the present invention is constructed by successively joining the upper steel pipe pile and the lower steel pipe pile through reinforcing inner sheath pipes inserted inside the lower end of the upper steel pipe pile and the upper end of the lower steel pipe pile, respectively. In the method of joining piles of steel pipe piles, the seal ring is attached to the tip of the reinforcing inner sheath pipe and the lower portion of the reinforcing inner sheath pipe is inserted and fixed in the tip inner cavity of the lower steel pipe pile.
Next, after inserting the tip inner cavity of the upper steel pipe pile into the upper portion projecting from the tip of the lower steel pipe pile, which is the remaining portion of the reinforcing inner sheath pipe excluding the lower portion, filling and solidifying the upper steel pipe pile by perforating It is constituted by filling a gap between the upper steel pipe pile and the reinforcing inner sheath pipe with a filling and solidifying material through the material injection hole, and joining the upper steel pipe pile and the lower steel pipe pile. Here, the present invention is different from the above-mentioned invention (Claim 1) in that the reinforcing inner sheath pipe is provided in advance toward the lower steel pipe pile. Along with this, a hole for injecting the filling and solidifying material is provided in the upper steel pipe pile.
【０００７】上述した発明において、補強内鞘管は、上
鋼管杭と下鋼管杭との管端を補強するに必要な長さを確
保するが、上鋼管杭と下鋼管杭との内側に挿入する補強
内鞘管の長さは略等長とすることが好ましい。また、上
鋼管杭及び下鋼管杭と補強内鞘管との間隙は、充填固化
材としてエポキシ樹脂を使用する場合、２〜５ｍｍ（半
径分）とすることが好ましい。２ｍｍより小さいと、充
填固化材が間隙に行きわたらせることが困難となり、５
ｍｍより大きくなると、充填固化材の量が多くなると同
時に、注入に時間を要するからである。In the above-mentioned invention, the reinforced inner sheath pipe secures a length required to reinforce the pipe ends of the upper steel pipe pile and the lower steel pipe pile, but is inserted inside the upper steel pipe pile and the lower steel pipe pile. The length of the reinforced inner sheath tube is preferably substantially equal. Further, the gap between the upper steel pipe pile and the lower steel pipe pile and the reinforcing inner sheath pipe is preferably 2 to 5 mm (for the radius) when the epoxy resin is used as the filling and solidifying material. If it is smaller than 2 mm, it becomes difficult for the filling and solidifying material to spread over the gap, and
This is because if it is larger than mm, the amount of the filling and solidifying material increases, and at the same time, it takes time to inject.
【０００８】[0008]
【作用】請求項１の発明は、補強内鞘管の上方部分を上
鋼管杭の先端内腔に挿入固着しておき、次いで前記上鋼
管杭の先端から突出した補強内鞘管の下方部分を下鋼管
杭の先端内腔に挿入する。下鋼管杭と補強内鞘管との間
隙への充填固化材の充填は、従来における補強内鞘管内
に露出した充填固化材注入管を使用せず、下鋼管杭に穿
孔した充填固化材注入用孔より直接に下鋼管杭と補強内
鞘管との間隙へ注入することにより行う。請求項２の発
明は、補強内鞘管の下方部分を下鋼管杭の先端内腔に挿
入固着しておき、次いで前記下鋼管杭の先端から突出し
た補強内鞘管の上方部分に上鋼管杭の先端内腔を挿入す
る。上鋼管杭と補強内鞘管との間隙への充填固化材の充
填は、上鋼管杭に穿孔した充填固化材注入用孔より直接
に上鋼管杭と補強内鞘管との間隙へ注入することにより
行う。According to the invention of claim 1, the upper portion of the reinforced inner sheath tube is inserted and fixed in the tip inner cavity of the upper steel pipe pile, and then the lower portion of the reinforced inner sheath pipe protruding from the tip of the upper steel pipe pile is fixed. Insert it into the inner lumen of the lower steel pipe pile. Filling the gap between the lower steel pipe pile and the reinforcing inner sheath pipe with the filling solidification material does not use the conventional filling solidification material injection pipe exposed in the reinforcing inner sheath pipe, but for injecting the filling solidification material drilled into the lower steel pipe pile. It is carried out by directly injecting into the gap between the lower steel pipe pile and the reinforced inner sheath pipe through the hole. According to a second aspect of the present invention, the lower portion of the reinforcing inner sheath pipe is inserted and fixed in the tip inner cavity of the lower steel pipe pile, and then the upper steel pipe pile is attached to the upper portion of the reinforcing inner sheath pipe protruding from the tip of the lower steel pipe pile. Insert the tip lumen of the. To fill the gap between the upper steel pipe pile and the reinforced inner sheath pipe with the filling solidification material, directly inject into the gap between the upper steel pipe pile and the reinforced inner sheath pipe from the filling solidification material injection hole drilled in the upper steel pipe pile. By.
【０００９】[0009]
【実施例】本発明の実施例について、図面を参照して以
下説明する。図１において、上鋼管杭１と下鋼管杭２と
の接合前（イ）と、結合後（ロ）を示す。図１（イ）に
おいて、上鋼管杭１に補強内鞘管４が挿入されている。
上鋼管杭１の補強内鞘管４に対する位置決めは、位置決
め金具５（後述）により行う。補強内鞘管４と上鋼管杭
１との固定は、補強内鞘管４と上鋼管杭１との間隙Ａに
エポキシ樹脂、セメントミルク、モルタル等の充填固化
材７を充填して行う。補強内鞘管４を上鋼管杭１に挿
入、固着し、補強内鞘管４の先端部にシールリング３を
装着した状態で、上鋼管杭１の先端から突出した補強内
鞘管４の下方部分を前記下鋼管杭２の先端内腔に挿入す
る。上鋼管杭１と下鋼管杭２の端部には、印籠継手６を
備える。印籠継手６により、上鋼管杭１の軸心と下鋼管
杭２の軸心との芯合わせが確実になり、下鋼管杭２と補
強内鞘管４との間隙を均等にすることができる。上鋼管
杭１と下鋼管杭２との間には、上鋼管杭１と下鋼管杭２
とを突き合わせた際に、両者が離れることを防止するた
め、止めボルト１０が設けられる。止めボルト１０はボ
ーリング孔へ鋼管杭を建て込むに当たって、下鋼管杭２
が落下しないように設けるものである。充填固化材８
は、下鋼管杭２に穿孔した充填固化材注入用孔７より下
鋼管杭２と補強内鞘管４との間隙Ａに注入、充填され
る。充填固化材８を充填するため、空気抜き孔９が用意
される。空気抜き孔９は、充填固化材８の注入後、ボル
ト等により閉塞することが好ましい。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the upper steel pipe pile 1 and the lower steel pipe pile 2 are shown before joining (a) and after joining (b). In FIG. 1A, a reinforcing inner sheath pipe 4 is inserted in the upper steel pipe pile 1.
Positioning of the upper steel pipe pile 1 with respect to the reinforcing inner sheath pipe 4 is performed by a positioning fitting 5 (described later). The reinforcement inner sheath pipe 4 and the upper steel pipe pile 1 are fixed by filling the gap A between the reinforcement inner sheath pipe 4 and the upper steel pipe pile 1 with a filling and solidifying material 7 such as epoxy resin, cement milk, mortar or the like. Below the reinforcing inner sheath pipe 4 protruding from the tip of the upper steel pipe pile 1 in a state where the reinforcing inner sheath pipe 4 is inserted into and fixed to the upper steel pipe pile 1 and the seal ring 3 is attached to the tip of the reinforcing inner sheath pipe 4. The portion is inserted into the inner lumen of the tip of the lower steel pipe pile 2. At the ends of the upper steel pipe pile 1 and the lower steel pipe pile 2, a seal joint 6 is provided. The inro joint 6 ensures that the axis of the upper steel pipe pile 1 and the axis of the lower steel pipe pile 2 are aligned, and the gap between the lower steel pipe pile 2 and the reinforcing inner sheath pipe 4 can be made uniform. An upper steel pipe pile 1 and a lower steel pipe pile 2 are provided between the upper steel pipe pile 1 and the lower steel pipe pile 2.
A retaining bolt 10 is provided to prevent the two from separating when they are butted. When the steel pipe pile is installed in the boring hole, the set bolt 10 is used for the lower steel pipe pile 2
Are provided so that they do not fall. Filling and solidifying material 8
Is injected and filled into the gap A between the lower steel pipe pile 2 and the reinforcing inner sheath pipe 4 through the filling and solidifying material injection hole 7 formed in the lower steel pipe pile 2. An air vent hole 9 is prepared for filling the filling and solidifying material 8. The air vent hole 9 is preferably closed with a bolt or the like after the filling and solidifying material 8 is injected.
【００１０】図２は、請求項２についての実施例を示
す。図２では、補強内鞘管４を下鋼管杭２に挿入固着し
ておき、次いで下鋼管杭２の先端から突出した補強内鞘
管４の上方部分に上鋼管杭１を挿入する。これに伴い、
充填固化材注入用孔７と空気抜き孔９の位置等が異なる
他は図１の場合と同様のものである。FIG. 2 shows an embodiment of claim 2. In FIG. 2, the reinforcing inner sheath pipe 4 is inserted and fixed to the lower steel pipe pile 2, and then the upper steel pipe pile 1 is inserted into the upper portion of the reinforcing inner sheath pipe 4 protruding from the tip of the lower steel pipe pile 2. With this,
This is the same as the case of FIG. 1 except that the positions of the filling and solidifying material injection hole 7 and the air vent hole 9 are different.
【００１１】次いで、図３により、位置決め金具の例示
を説明する。位置決め金具５は上鋼管杭１に固定され、
テーパー部５ａにより補強内鞘管４を着座させて位置決
めする。補強内鞘管４の先端部には凹溝１１を設け、シ
ールリング１２が取り付けられる。Next, an example of the positioning fitting will be described with reference to FIG. The positioning bracket 5 is fixed to the upper steel pipe pile 1,
The reinforced inner sheath tube 4 is seated and positioned by the tapered portion 5a. A groove 11 is provided at the tip of the reinforced inner sheath tube 4, and a seal ring 12 is attached.
【００１２】図４により、止めボルトの例示を説明す
る。図４は、弾性ボルトを示し、ピン１３がスプリング
１４により上鋼管杭１の軸心の方向に向かうよう貫通孔
１５内にケース１６により取り付けられる。下鋼管杭２
を挿入すると、ピン１３はバックし、スプリング１４の
働きにより凹溝１７内に収まる。かかる止めボルトを上
鋼管杭１の周囲に適宜の本数設ける。An example of the retaining bolt will be described with reference to FIG. FIG. 4 shows an elastic bolt, and the pin 13 is attached to the through hole 15 by the spring 16 so that the pin 13 faces the axial center of the upper steel pipe pile 1. Lower steel pipe pile 2
When the pin is inserted, the pin 13 is moved back and is housed in the concave groove 17 by the action of the spring 14. An appropriate number of such fastening bolts are provided around the upper steel pipe pile 1.
【００１３】図５は、補強内鞘管の先端部に装着するシ
ールリングの例示を説明する。図５において、補強内鞘
管４の先端部に、凹溝１８を設け、シールリング３を取
り付ける。シールリング３には、ゴム等を使用する。FIG. 5 illustrates an example of a seal ring mounted on the tip of the reinforced inner sheath tube. In FIG. 5, a groove 18 is provided at the tip of the reinforced inner sheath tube 4, and the seal ring 3 is attached. Rubber or the like is used for the seal ring 3.
【００１４】[0014]
【発明の効果】本発明は、上述の構成により、以下の効
果を奏することができる。本発明は、継手部に挿入する
補強内鞘管と鋼管杭内面との間隙への充填固化材の注入
を、該注入作業に関わる治具を補強内鞘管の内部に突出
させずに行うことができる。従って、山岳傾斜地での地
滑り対策として施工される抑止杭工で、鋼管杭のボーリ
ング孔への建込み後に行われる鋼管内部の泥水除去作業
のためのケーシング管の挿入、またモルタル充填作業の
ためのトレミー管の挿入に伴う充填固化材の漏出の発生
等による上鋼管杭と下鋼管杭とから形成される継手部の
強度・曲げ剛性の低下を防止することができる。また、
ケーシング管及びトレミー管の鋼管杭内部への挿入作業
時の障害を軽減し、抑止杭作業の施工性を大幅に改善す
ることができる。The present invention has the following effects due to the above configuration. The present invention is to perform the injection of the filling and solidifying material into the gap between the reinforcing inner sheath tube to be inserted into the joint portion and the inner surface of the steel pipe pile without projecting a jig related to the injecting work into the reinforcing inner sheath tube. You can Therefore, for the deterrent pile work that is installed as a measure against landslides on mountain slopes, insert a casing pipe for muddy water removal work inside the steel pipe that is performed after the steel pipe pile is installed in the boring hole, and for mortar filling work. It is possible to prevent a decrease in strength and bending rigidity of the joint portion formed by the upper steel pipe pile and the lower steel pipe pile due to leakage of the solidified filling material caused by the insertion of the tremie pipe. Also,
It is possible to reduce obstacles during the insertion work of the casing pipe and the tremie pipe into the steel pipe pile and significantly improve the workability of the restraining pile work.
【図１】本発明の実施例を説明する図である。FIG. 1 is a diagram illustrating an example of the present invention.
【図２】本発明の別の実施例を説明する図である。FIG. 2 is a diagram illustrating another embodiment of the present invention.
【図３】位置決め金具の例示を説明する図である。FIG. 3 is a diagram illustrating an example of a positioning fitting.
【図４】止めボルトの例示を説明する図である。FIG. 4 is a diagram illustrating an example of a stop bolt.
【図５】補強内鞘管の先端部のシールリングの例示を説
明する図である。FIG. 5 is a diagram illustrating an example of a seal ring at the tip of a reinforced inner sheath tube.
【図６】従来の技術を説明する図である。FIG. 6 is a diagram illustrating a conventional technique.
１ 上鋼管杭 ２ 下鋼管杭 ３ シールリング ４ 補強内鞘管 ５ 位置決め金具 ５ａ テーパー部 ６ 印籠継手 ７ 充填固化材注入孔 ７ａ ボルト ８ 充填固化材 ９ 空気抜き孔 １０ 止めボルト １１ 凹溝 １２ シールリング １３ ピン １４ スプリング １５ 貫通孔 １６ ケース １７ 凹溝 １８ 凹溝 １９ 充填固化材注入管 1 Upper Steel Pipe Pile 2 Lower Steel Pipe Pile 3 Seal Ring 4 Reinforcing Inner Sheath Pipe 5 Positioning Metal 5a Tapered Part 6 Inko Joint 7 Filled Solidifying Material Injection Hole 7a Bolt 8 Filled Solidifying Material 9 Air Venting Hole 10 Stop Bolt 11 Recessed Groove 12 Seal Ring 13 Pin 14 Spring 15 Through hole 16 Case 17 Recessed groove 18 Recessed groove 19 Filled solidified material injection pipe
Claims (4)
ぞれの内側に挿入する補強内鞘管を介して該上鋼管杭と
該下鋼管杭とを逐次接合して建込みを行なう鋼管杭の継
ぎ杭方法において、補強内鞘管の先端部にシールリング
を装着するとともに前記補強内鞘管の上方部分を前記上
鋼管杭の先端内腔に挿入固着しておき、次いで補強内鞘
管の前記上方部分を除く残余の部分である前記上鋼管杭
の先端から突出した下方部分を前記下鋼管杭の先端内腔
に挿入した後、前記下鋼管杭に穿孔した充填固化材注入
用孔より下鋼管杭と補強内鞘管との間隙に充填固化材を
充填し、上鋼管杭と下鋼管杭とを接合することを特徴と
する鋼管杭の継ぎ杭方法。1. A steel pipe which is constructed by successively joining the upper steel pipe pile and the lower steel pipe pile through reinforcing inner sheath pipes inserted inside the lower end of the upper steel pipe pile and the upper end of the lower steel pipe pile, respectively. In the method of connecting piles of piles, a seal ring is attached to the tip portion of the reinforcing inner sheath tube, and the upper portion of the reinforcing inner sheath tube is inserted and fixed in the tip inner cavity of the upper steel pipe pile. After inserting the lower portion projecting from the tip of the upper steel pipe pile, which is the remaining portion excluding the upper portion, into the tip inner cavity of the lower steel pipe pile, the filling solidified material injection hole drilled in the lower steel pipe pile A joint pile method for steel pipe piles, characterized by filling a gap between a lower steel pipe pile and a reinforced inner sheath pipe with a filling and solidifying material, and joining the upper steel pipe pile and the lower steel pipe pile.
ぞれの内側に挿入する補強内鞘管を介して該上鋼管杭と
該下鋼管杭とを逐次接合して建込みを行なう鋼管杭の継
ぎ杭方法において、補強内鞘管の先端部にシールリング
を装着するとともに前記補強内鞘管の下方部分を前記下
鋼管杭の先端内腔に挿入固着しておき、次いで補強内鞘
管の前記下方部分を除く残余の部分である前記下鋼管杭
の先端から突出した上方部分に前記上鋼管杭の先端内腔
を挿入した後、前記上鋼管杭に穿孔した充填固化材注入
用孔より上鋼管杭と補強内鞘管との間隙に充填固化材を
充填し、上鋼管杭と下鋼管杭とを接合することを特徴と
する鋼管杭の継ぎ杭方法。2. A steel pipe which is constructed by sequentially joining the upper steel pipe pile and the lower steel pipe pile through reinforcing inner sheath pipes inserted inside the lower end of the upper steel pipe pile and the upper end of the lower steel pipe pile, respectively. In the method of connecting piles of piles, a seal ring is attached to the tip portion of the reinforcing inner sheath tube, the lower portion of the reinforcing inner sheath tube is inserted and fixed in the tip inner cavity of the lower steel pipe pile, and then the reinforcing inner sheath tube is fixed. After inserting the tip lumen of the upper steel pipe pile into the upper portion projecting from the tip of the lower steel pipe pile, which is the remaining portion excluding the lower portion, from the filling solidified material injection hole drilled in the upper steel pipe pile A joint pile method for steel pipe piles, which comprises filling a gap between the upper steel pipe pile and the reinforced inner sheath pipe with a filling and solidifying material and joining the upper steel pipe pile and the lower steel pipe pile.
ぞれの内側に挿入された補強内鞘管の長さを略等長とす
る請求項１、又は２記載の鋼管杭の継ぎ杭方法。3. The joint pile for a steel pipe pile according to claim 1, wherein the lengths of the reinforcing inner sheath pipes inserted inside the lower end of the upper steel pipe pile and the upper end of the lower steel pipe pile are substantially equal to each other. Method.
は下鋼管杭と補強内鞘管との間隙に充填固化材を充填し
た後、該充填固化材注入用孔を閉塞する請求項１、２、
又は３記載の鋼管杭の継ぎ杭方法。4. The filling and solidifying material injection hole is closed after the filling and solidifying material is filled in the gap between the upper steel pipe pile or the lower steel pipe pile and the reinforcing inner sheath pipe from the filling and solidifying material injection hole. 2,
Alternatively, the method for splicing steel pipe piles according to item 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13898193A JPH06322756A (en) | 1993-05-18 | 1993-05-18 | Steel pipe pile connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13898193A JPH06322756A (en) | 1993-05-18 | 1993-05-18 | Steel pipe pile connection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06322756A true JPH06322756A (en) | 1994-11-22 |
Family
ID=15234694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13898193A Pending JPH06322756A (en) | 1993-05-18 | 1993-05-18 | Steel pipe pile connection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06322756A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009002023A (en) * | 2007-06-20 | 2009-01-08 | Raiteku:Kk | Prop for protective structure against avalanche and falling rock |
| JP2009002022A (en) * | 2007-06-20 | 2009-01-08 | Raiteku:Kk | Prop for protective structure against avalanche and falling rock |
| JP2015232215A (en) * | 2014-06-09 | 2015-12-24 | 西武ポリマ化成株式会社 | Double pipe sealing material |
| JP2018204257A (en) * | 2017-06-01 | 2018-12-27 | 株式会社横山基礎工事 | Ring-shaped tip metal and pile installation method by inner excavation using it |
-
1993
- 1993-05-18 JP JP13898193A patent/JPH06322756A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009002023A (en) * | 2007-06-20 | 2009-01-08 | Raiteku:Kk | Prop for protective structure against avalanche and falling rock |
| JP2009002022A (en) * | 2007-06-20 | 2009-01-08 | Raiteku:Kk | Prop for protective structure against avalanche and falling rock |
| JP2015232215A (en) * | 2014-06-09 | 2015-12-24 | 西武ポリマ化成株式会社 | Double pipe sealing material |
| JP2018204257A (en) * | 2017-06-01 | 2018-12-27 | 株式会社横山基礎工事 | Ring-shaped tip metal and pile installation method by inner excavation using it |
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