JPH0657742A - Continuous wall material joint protection method and joint protection material - Google Patents
Continuous wall material joint protection method and joint protection materialInfo
- Publication number
- JPH0657742A JPH0657742A JP10399992A JP10399992A JPH0657742A JP H0657742 A JPH0657742 A JP H0657742A JP 10399992 A JP10399992 A JP 10399992A JP 10399992 A JP10399992 A JP 10399992A JP H0657742 A JPH0657742 A JP H0657742A
- Authority
- JP
- Japan
- Prior art keywords
- flexible tube
- joint
- flexible
- joint protection
- steel pipe
- 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.)
- Withdrawn
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、場所打ち式の土留壁や
遮水壁等の地中連続壁を構築するに当たり、鋼製矢板や
鋼製連壁部材等（以下、連壁部材と総称する）の継手部
にコンクリート等の固化材が入り込まないように防護す
る連壁部材の継手防護方法と、それに使用する継手防護
部材に関する。BACKGROUND OF THE INVENTION The present invention relates to a steel sheet pile, a steel connecting wall member, etc. (hereinafter collectively referred to as a connecting wall member) when constructing an underground continuous wall such as a cast-in-place type earth retaining wall or water impermeable wall. The joint protection method for a wall member that protects a solidified material such as concrete from entering the joint section, and the joint protection member used therefor.
【０００２】[0002]
【従来の技術】従来、このような継手防護方法として一
般に次のような２つの方法が行われている。2. Description of the Related Art Conventionally, the following two methods are generally used as such joint protection methods.
【０００３】 砂充填式 図９に示すように、連壁部材１の継手部２のスリット３
を薄鉄板などの保護金物４で閉塞した後、継手部２中に
砂を投入充填し、この状態で固化材を打設して１区間を
施工する。この後、保護金物４を引き抜き、隣の区間の
掘削時に、掘削機に取り付けた鋼製ガイドによって継手
部２中の砂を掻き出す。Sand filling type As shown in FIG. 9, the slit 3 of the joint portion 2 of the connecting wall member 1
Is closed with a protective metal 4 such as a thin iron plate, sand is filled into the joint portion 2, and a solidifying material is placed in this state to construct one section. After that, the protective hardware 4 is pulled out, and when excavating the adjacent section, the sand in the joint portion 2 is scraped out by the steel guide attached to the excavator.
【０００４】 可撓性チューブ式 図１０に示すように、一本の連続した可撓性チューブ５
を継手部２中に挿入し、該可撓性チューブ５中に空気又
は液体を加圧充填して膨張させ、継手部２のスリット３
を内側から閉塞する。固化材打設後に、可撓性チューブ
５中の空気又は液体を排出してから可撓性チューブ５を
継手部２より引き抜く。Flexible Tube Type As shown in FIG. 10, one continuous flexible tube 5
Is inserted into the joint portion 2, and air or liquid is pressurized and filled into the flexible tube 5 to expand the flexible tube 5, and the slit 3 of the joint portion 2 is expanded.
From the inside. After the solidifying material has been cast, the air or liquid in the flexible tube 5 is discharged, and then the flexible tube 5 is pulled out from the joint portion 2.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上記の方法
では、保護金物の設置及び撤去と、砂の投入及び掻き出
しという異なる２段階の作業を必要とするため、作業が
煩雑であるとともに、継手部からの砂の掻き出しの確実
性に欠けており、これを確実に行おうとすると水ジェッ
トなどによる清掃が更に必要となり、作業がますます煩
雑になるなどの問題があった。However, the above-mentioned method requires two steps of work, that is, installation and removal of a protective metal article, and throwing in and scraping out of sand. Therefore, the work is complicated and the joint part is complicated. There is a problem in that the sand is not surely scratched out from the sand, and if it is attempted to do so reliably, cleaning with a water jet or the like is further required and the work becomes more and more complicated.
【０００６】の方法では、継手部の保護に関しては可
撓性チューブに空気又は液体を圧入するだけで確実に行
え、しかも継手形状に対する追従性も良いが、可撓性チ
ューブが連続した一本ものであるため、その引抜き撤去
時に工事深度により１〜５ｔ程度以上の引抜き力が可撓
性チューブにかかり、その伸長又は破損などの恐れがあ
り、更にその転用回数が少ないとか、工事深度に応じて
可撓性チューブの長さを変更しなければならないなどの
問題があった。According to the method of (1), the joint can be protected by simply pressurizing air or liquid into the flexible tube, and the followability to the joint shape is good, but one flexible tube is continuous. Therefore, depending on the construction depth, a pulling force of about 1 to 5 tons or more is applied to the flexible tube when it is pulled out and removed, and there is a risk of extension or breakage of the flexible tube. There was a problem that the length of the flexible tube had to be changed.
【０００７】そこで、本発明の目的は、可撓性チューブ
式による利点はそのまま生かして従来の上記のような問
題点を解決すること、つまり可撓性チューブの引き抜き
時の耐久性を確保しながらその引き抜きを容易にするこ
と、工事深度に応じて可撓性チューブ全体の長さを自由
に変更できるようにすることにある。Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art by making the best use of the advantages of the flexible tube type, that is, while ensuring the durability when the flexible tube is pulled out. Its purpose is to facilitate its withdrawal and to allow the length of the entire flexible tube to be freely changed according to the construction depth.
【０００８】[0008]
【課題を解決するための手段】本発明による方法では、
可撓性チューブを短尺物としてそのそれぞれの上下端に
着脱自在な連結部を設けておく。そして、その複数本を
順次連結して継ぎ足しながら連壁部材の鞘状の継手部中
に挿入した後、最上段の可撓性チューブから気体又は液
体を圧入充填して全可撓性チューブを継手部中で膨張さ
せて該継手部を内側から閉塞する。可撓性チューブを撤
去するときには、その内部の空気又は液体を排出した
後、可撓性チューブの引き上げと上記連結部における分
離とを繰り返す。In the method according to the invention,
A flexible tube is made into a short product, and detachable connecting portions are provided at the upper and lower ends of the flexible tube. Then, the plurality of tubes are sequentially connected and added to each other and inserted into the sheath-like joint portion of the wall member, and then gas or liquid is press-fitted from the uppermost flexible tube to jointly connect all the flexible tubes. The joint is closed from the inside by inflating the joint. When the flexible tube is removed, the air or liquid in the flexible tube is discharged, and then the flexible tube is repeatedly pulled up and separated at the connecting portion.
【０００９】好ましくは、各可撓性チューブ中にその上
端から下端に至る鋼管を設け、可撓性チューブ相互の鋼
管の上下端部を着脱自在に連結し、該鋼管を通じて全可
撓性チューブ中に空気又は液体を圧入充填するととも
に、該鋼管を使用して可撓性チューブを引き上げる。Preferably, each flexible tube is provided with a steel pipe extending from its upper end to its lower end, the upper and lower ends of the steel pipes of the flexible tubes are detachably connected to each other, and the flexible pipe is connected to the entire flexible tube. Is filled with air or liquid under pressure, and the flexible tube is pulled up using the steel tube.
【００１０】本発明による継手防護部材は、上下端が閉
じた可撓性チューブ中にその上端から下端に至る鋼管を
設け、該鋼管の上下端部に継ぎ足し連結するための雌雄
のネジ部を設け、更に該鋼管の所要箇所に、可撓性チュ
ーブ内に気体又は液体を圧入充填するための吹き出し口
を設けたものである。In the joint protection member according to the present invention, a steel tube extending from the upper end to the lower end is provided in a flexible tube whose upper and lower ends are closed, and male and female screw portions for connecting and connecting the upper and lower ends of the steel pipe are provided. Further, a blowing port for press-filling a flexible tube with a gas or a liquid is provided at a required position of the steel tube.
【００１１】各継手防護部材に、その上端部に対して着
脱自在な仮受け金具を備えると、継手保護部材を順次連
結しながら連壁部材の継手部中に挿入するとき、先に挿
入した継手防護部材を継手部の上端に仮止めして次の継
手防護部材との連結を行えるとともに、その連結された
継手防護部材を継手部中から引き上げるときにも、次に
引き抜く継手防護部材を継手部の上端に仮止めして継手
防護部材相互を分離できる。If each joint protection member is provided with a temporary receiving metal fitting detachably attached to its upper end, when inserting the joint protection member into the joint portion of the wall member while sequentially connecting the joint protection members, the joint inserted first. The protective member can be temporarily fixed to the upper end of the joint to connect it with the next joint protective member, and the joint protective member to be pulled out next is also pulled up from the joint when the joint protective member is pulled up from the joint. The joint protection members can be separated from each other by temporarily fixing them to the upper end of.
【００１２】[0012]
【作用】本発明によると、短尺物の複数本の可撓性チュ
ーブを順次継ぎ足しながら連壁部材の継手部にスムーズ
に挿入し、その後、全可撓性チューブを一斉に膨張させ
ることにより、継手部の形状に従ってそのスリットを内
側から確実に閉塞することができる。一方、可撓性チュ
ーブを継手部中から引き抜くときには、内部の空気又は
液体を排出して収縮させてから、可撓性チューブ相互を
順次分離して小さい引抜き力で容易に引き抜くことがで
きる。According to the present invention, a plurality of flexible tubes of a short length are successively inserted into the joint portion of the wall member while being successively added, and then all the flexible tubes are simultaneously expanded to joints. The slit can be surely closed from the inside according to the shape of the part. On the other hand, when the flexible tube is pulled out from the joint portion, it is possible to easily pull out with a small pulling force by sequentially separating the flexible tubes from each other by discharging the air or the liquid inside to shrink the flexible tube.
【００１３】また、可撓性チューブ中に鋼管を組み込む
ことにより、可撓性チューブの耐久性を高め、しかも可
撓性チューブ相互の連結を確実に行える。Further, by incorporating a steel pipe into the flexible tube, the durability of the flexible tube can be enhanced and the flexible tubes can be reliably connected to each other.
【００１４】[0014]
【実施例】以下、本発明の実施例を図面に従い詳細に説
明する。図１は本発明による継手防護部材の一例の複数
本を分離して示し、図２はその上端部と下端部の断面構
造を示す。一本の継手防護部材１０は例えば３〜５ｍ程
度の長さの短尺物で、布、ビニール、ポリエチレン、ポ
リプロピレン等による可撓性チューブ１１中に鋼管１２
を組み込んだ二重円筒構造となっている。Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows a plurality of joint protection members according to the present invention separately, and FIG. 2 shows a cross-sectional structure of an upper end portion and a lower end portion thereof. One joint protection member 10 is, for example, a short piece having a length of about 3 to 5 m, and a steel tube 12 is provided in a flexible tube 11 made of cloth, vinyl, polyethylene, polypropylene or the like.
It has a double cylindrical structure incorporating.
【００１５】すなわち、鋼管１２の上下端部に金属製の
上下の鍔付き蓋板１３・１４を固着し、可撓性チューブ
１１の上下端部をこれら上下の鍔付き蓋板１３・１４の
鍔の外周面に被せ、その外側から上下それぞれ結束バン
ド１５で可撓性チューブ１１の上下端部のみを緊締して
ある。上側の鍔付き蓋板１３の上面（外面）には、図３
に示すように円形鉄板である補助板１６が押さえボルト
１７によって固着されている。That is, upper and lower lid plates 13 and 14 made of metal are fixed to the upper and lower end portions of the steel pipe 12, and the upper and lower end portions of the flexible tube 11 are fixed to the upper and lower brim lid plates 13 and 14, respectively. The upper and lower ends of the flexible tube 11 are tightened by binding bands 15 from the outside to the outer peripheral surface of the flexible tube 11. The upper surface (outer surface) of the upper lid plate 13 with the collar is shown in FIG.
As shown in FIG. 3, an auxiliary plate 16 which is a circular iron plate is fixed by a holding bolt 17.
【００１６】継手防護部材１０は、その複数本を後述す
るように上下に順次連結して使用するが、その連結で最
下位になる継手防護部材については、可撓性チューブ１
１の下端及び鋼管１２の下端が共に下側の鍔付き蓋板１
４によって完全に閉塞されている。ところが、それ以外
の継手防護部材では、その鋼管１２の下端部が、連結す
るための雄ネジ部１２a となって下側の鍔付き蓋板１４
から外方へ貫通突出しており、その雄ネジ部１２a の根
元部分にはパッキン材１８が付設される。The joint protection member 10 is used by connecting a plurality of joints up and down, as will be described later. The flexible joint 1 is the lowest joint protection member in the joint.
1 and the lower end of the steel pipe 12 are both lower lid plates 1 with a collar.
It is completely blocked by 4. However, in other joint protection members, the lower end portion of the steel pipe 12 becomes the male screw portion 12a for connection, and the lower lid plate 14 with the collar is formed.
And a packing material 18 is attached to the root portion of the male screw portion 12a.
【００１７】また、いずれの継手防護部材１０について
も、鋼管１２の上端部は、上側の鍔付き蓋板１３と一体
化され、この鍔付き蓋板１３の孔１９及び補助板１６の
孔２０と一致する雌ネジ部１２b となっている。補助板
１６は可撓性チューブ１１の上端から突出しており、該
補助板１６の外周面の対向する２箇所には仮受け用ネジ
孔２１が設けられている。更に、鋼管１２の中途には、
可撓性チューブ１１内に気体又は液体を圧入充填するた
めの吹き出し口２２が設けられている。Further, in any of the joint protection members 10, the upper end of the steel pipe 12 is integrated with the upper lid plate 13 with the flange, and the hole 19 of the lid plate 13 with the flange and the hole 20 of the auxiliary plate 16 are integrated. The female threads 12b are matched with each other. The auxiliary plate 16 protrudes from the upper end of the flexible tube 11, and temporary receiving screw holes 21 are provided at two opposing positions on the outer peripheral surface of the auxiliary plate 16. Furthermore, in the middle of the steel pipe 12,
The flexible tube 11 is provided with an outlet 22 for press-fitting and filling gas or liquid.
【００１８】次に、上記のような構造の継手防護部材１
０を使用して行う本発明の方法の一例について説明す
る。掘削機により所定の掘削溝を掘削し、その中に例え
ば図４に示すようなＨ型の連壁部材２３を建込む。この
後、図１に示すように、鋼管１２の下端部が突出してい
ない継手防護部材１０a を最下位にするため、これを先
ず連壁部材２３の鞘状の継手部２４に挿入し、該継手防
護部材１０a の頭部の両側の仮受け用ネジ孔２１に図３
に示すような例えばピン状の仮受け金具２５をネジ込
み、両側の仮受け金具２５で継手防護部材１０a を継手
部２４の上端に一旦仮止めする。Next, the joint protection member 1 having the above structure.
An example of the method of the present invention performed by using 0 will be described. A predetermined excavation groove is excavated by an excavator, and an H-shaped connecting wall member 23 as shown in FIG. 4, for example, is built therein. Thereafter, as shown in FIG. 1, in order to make the joint protection member 10a of which the lower end portion of the steel pipe 12 does not project to the lowest position, this is first inserted into the sheath joint portion 24 of the connecting wall member 23, and the joint protection member 10a is inserted. The temporary receiving screw holes 21 on both sides of the head of the protective member 10a are shown in FIG.
For example, the pin-shaped temporary receiving metal fittings 25 are screwed in, and the temporary joint fittings 25 on both sides temporarily fix the joint protection member 10a to the upper end of the joint portion 24.
【００１９】次いで、次の継手防護部材１０の下端の雄
ネジ部１２a を、仮止めしてある継手防護部材１０a の
雌ネジ部１２b へネジ込み、両継手防護部材１０a ・１
０を連結する。この後、継手防護部材１０a の頭部から
仮受け金具２５を外し、その外した後の仮受け用ネジ孔
２１に、図３に示すような蓋用ボルト２６をネジ込んで
蓋をしてから、両継手防護部材１０a ・１０を一体に下
降させて上側の継手防護部材１０も継手部２４中へ挿入
し、今度は該継手防護部材１０を上記と同様に継手部２
４の上端に仮止めする。Next, the male screw portion 12a at the lower end of the next joint protection member 10 is screwed into the female screw portion 12b of the joint protection member 10a which is temporarily fixed, and both joint protection members 10a.
Connect 0. After that, the provisional receiving metal fitting 25 is removed from the head of the joint protection member 10a, and a lid bolt 26 as shown in FIG. , The joint protection members 10a and 10 are integrally lowered, and the upper joint protection member 10 is also inserted into the joint portion 24. This time, the joint protection member 10 is moved in the same manner as described above.
Temporarily fix to the upper end of 4.
【００２０】以下、同様の作業を繰り返して所要本数の
継手防護部材１０を順次継ぎ足し、最上位の継手防護部
材１０の上端部が継手部２４の上端から突出した状態に
なる程度まで継手部２４中に挿入する。この状態で、図
１に示すように最上位の継手防護部材１０の上端の雌ネ
ジ部１２b へニップル２７を介して圧入ホース２８を接
続し、該圧入ホース２８から例えば空気を圧入する。す
ると、鋼管１２の吹き出し口２２から全継手防護部材１
０の可撓性チューブ１１中に空気が圧入され、全可撓性
チューブ１１が一斉に膨張して継手部２４のスリット２
４a を内側から閉塞する。その膨張力が、掘削溝内に充
填される固化材に対抗するに十分な圧力になるまで加圧
したら、圧入経路を閉じてその状態を保持する。Thereafter, the same work is repeated, and the required number of joint protection members 10 are sequentially added, and the upper end of the uppermost joint protection member 10 is projected from the upper end of the joint portion 24 to the extent that the joint portion 24 is in the middle. To insert. In this state, as shown in FIG. 1, the press-fitting hose 28 is connected to the female screw portion 12b at the upper end of the uppermost joint protection member 10 via the nipple 27, and, for example, air is press-fitted from the press-fitting hose 28. Then, from the outlet 22 of the steel pipe 12 to the joint protection member 1
Air is press-fitted into the flexible tube 11 of No. 0, all the flexible tubes 11 expand simultaneously, and the slit 2 of the joint part 24
Block 4a from the inside. When the expansion force is increased to a pressure sufficient to oppose the solidified material filled in the trench, the press-fitting path is closed and the state is maintained.
【００２１】この後、図４及び図５の（１）に示すよう
に掘削溝内にコンクリート等の固化材２９を充填する。
その充填した固化材２９が自立する程度まで硬化した
ら、空気圧力を開放して全可撓性チューブ１１を収縮さ
せてから、別に用意されている図６に示すような引抜き
補助金具３０を使用して継手防護部材を次のように順次
引き抜く。引抜き補助金具３０は、その上端部が吊り部
３０a 、中間部がジャッキ把持部３０b 、下端部が雄ネ
ジによる連結部３０c となっている。Thereafter, as shown in (1) of FIGS. 4 and 5, the excavation trench is filled with a solidifying material 29 such as concrete.
When the filled solidifying material 29 has hardened to a self-supporting state, the air pressure is released to shrink the all-flexible tube 11, and then a separately prepared pull-out auxiliary metal fitting 30 as shown in FIG. 6 is used. Pull out the joint protection member sequentially as follows. The withdrawal auxiliary metal fitting 30 has a hanging portion 30a at its upper end, a jack gripping portion 30b at its intermediate portion, and a connecting portion 30c by a male screw at its lower end.
【００２２】先ず、最上位の継手防護部材１０の上端の
雌ネジ部１２b からニップル２７及び圧入ホース２８を
外し、これに代えて引抜き補助金具３０の連結部３０c
を雌ネジ部１２b にネジ込み、該引抜き補助金具３０で
吊り上げて最上位の継手防護部材１０を継手部２４から
引き抜く。次の継手防護部材１０の頭部の仮受け用ネジ
孔２１に仮受け金具２５をネジ込んでこれで該継手防護
部材１０を継手部２４の上端に仮止めしておいてから、
最上位の継手防護部材１０の下端の雄ネジ部１２a を次
の継手防護部材１０の雌ネジ部１２b から外して最上位
の継手防護部材１０を分離する。First, the nipple 27 and the press-fitting hose 28 are removed from the female screw portion 12b at the upper end of the uppermost joint protection member 10, and instead of this, the connecting portion 30c of the withdrawal auxiliary metal fitting 30.
Is screwed into the female screw portion 12b, and the uppermost joint protection member 10 is pulled out from the joint portion 24 by lifting it with the pull-out auxiliary metal fitting 30. After the temporary receiving metal fitting 25 is screwed into the temporary receiving screw hole 21 of the head of the next joint protection member 10 to temporarily fix the joint protection member 10 to the upper end of the joint portion 24,
The male screw portion 12a at the lower end of the uppermost joint protection member 10 is removed from the female screw portion 12b of the next joint protection member 10 to separate the uppermost joint protection member 10.
【００２３】以下同様にして、引抜き補助金具３０の取
り付け、仮受け金具２５の取り外し、引抜き補助金具３
０を使用した継手防護部材の吊り上げ、仮受け金具２５
による次の継手防護部材の新たな仮止め、雄ネジ部１２
a と雌ネジ部１２b との間の分離を繰り返して全継手防
護部材を引き抜き撤去する。その後、図５の（２）に示
すように固化材２９の端部を処理してから同図の（３）
に示すように次ぎの掘削溝を掘削して同様の作業を繰り
返す。In the same manner, the attachment of the pull-out auxiliary metal fitting 30, the removal of the temporary receiving metal fitting 25, the pull-out auxiliary metal fitting 3
Lifting of joint protection member using 0, temporary receiving metal fitting 25
Next temporary protection of joint protection member, male screw part 12
The separation between the a and the female screw portion 12b is repeated, and the joint protection member is pulled out and removed. After that, as shown in (2) of FIG. 5, the end portion of the solidified material 29 is treated, and then (3) of FIG.
The next excavation groove is excavated as shown in, and the same work is repeated.
【００２４】図７及び図８はそれぞれ本発明の他の例を
示す。図７の例は、可撓性チューブ１１の上端部及び下
端部を折り曲げ、その折り曲げ部分を上下それぞれ鍔付
き蓋板１３・１４とで挟むようにして該鍔付き蓋板１３
・１４に上下の補助板１６を押さえボルト１７で固定し
たものである。このようにすると、図２に示した結束バ
ンド１５及びパッキン材１８を省略できる。図８の例
は、鋼管１２を省略して下側の鍔付き蓋板１４に雄ネジ
部１２a 、上側の鍔付き蓋板１４に雌ネジ部１２b を設
けたものである。7 and 8 each show another example of the present invention. In the example of FIG. 7, the upper end portion and the lower end portion of the flexible tube 11 are bent, and the bent portions are sandwiched between the upper and lower lid plates 13 and 14 of the flange, respectively.
The upper and lower auxiliary plates 16 are fixed to 14 by pressing bolts 17. By doing so, the binding band 15 and the packing material 18 shown in FIG. 2 can be omitted. In the example of FIG. 8, the steel pipe 12 is omitted and the lower lid plate 14 with a collar is provided with a male screw portion 12a, and the upper lid plate 14 with a collar is provided with a female screw portion 12b.
【００２５】なお、継手防護部材相互の連結はネジ以外
の連結手段で行っても構わない。また、空気に代えて水
等の液体を可撓性チューブ１１中に圧入しても良い。そ
の場合には、鋼管１２に２つ以上の吹き出し口２２を設
け、また引き抜きに当たり事前に液体を排出方法として
は、継手防護部材１０の頭部より空気を吹き込み、鋼管
１２から液体を逆流させて排出する方法が考えられる。The joint protection members may be connected to each other by connecting means other than screws. A liquid such as water may be pressed into the flexible tube 11 instead of air. In that case, two or more outlets 22 are provided in the steel pipe 12, and as a method of discharging the liquid in advance before drawing, air is blown from the head of the joint protection member 10 and the liquid is made to flow backward from the steel pipe 12. A method of discharging can be considered.
【００２６】[0026]
【発明の効果】本発明によれば次のような効果がある。 短尺物の複数本の可撓性チューブを順次継ぎ足しな
がら連壁部材の継手部にスムーズに挿入し、その後、全
可撓性チューブを一斉に膨張させることにより、継手部
の形状に従ってそのスリットを内側から確実に閉塞する
ことができる。The present invention has the following effects. Smoothly insert a plurality of flexible tubes into the joint part of the wall member while sequentially adding multiple flexible tubes, and then expand all the flexible tubes all at once, so that the slits are formed inside according to the shape of the joint part. Can be surely closed.
【００２７】 可撓性チューブを継手部中から引き抜
くときには、内部の空気又は液体を排出して収縮させて
から、可撓性チューブ相互を順次分離して小さい引抜き
力で容易に引き抜くことができる。When the flexible tube is pulled out from the joint portion, the air or liquid inside is discharged and contracted, and then the flexible tubes can be sequentially separated to be easily pulled out with a small pulling force.
【００２８】 工事深度に応じて可撓性チューブ全体
の長さを自由に変更できる。 可撓性チューブの径を変えることにより、様々な形
状及び大きさの継手に対応できる。The entire length of the flexible tube can be freely changed according to the construction depth. By changing the diameter of the flexible tube, it is possible to accommodate joints of various shapes and sizes.
【００２９】 可撓性チューブ内に鋼管を組み込んで
いるため、可撓性チューブの引き抜き時の耐久性を確保
しながらその引き抜きを容易に行える。Since the steel tube is incorporated in the flexible tube, it is possible to easily pull out the flexible tube while ensuring the durability at the time of pulling out.
【図１】本発明による継手防護部材の一例の複数本を分
離して示す側面図である。FIG. 1 is a side view showing a plurality of joint protection members according to the present invention, which are separated from each other.
【図２】上記継手防護部材の上端部と下端部の断面図で
ある。FIG. 2 is a cross-sectional view of an upper end portion and a lower end portion of the joint protection member.
【図３】同継手防護部材を連壁部材の継手部中に挿入し
て示す頭部の拡大斜視図である。FIG. 3 is an enlarged perspective view of a head shown by inserting the joint protection member into a joint portion of a connecting wall member.
【図４】掘削溝内に固化材を充填した後の天面の斜視図
である。FIG. 4 is a perspective view of the top surface after the solidification material is filled in the excavation trench.
【図５】連続地中壁の施工手順を（１）・（２）・
（３）の３状態に分けて示す平面図である。[Fig. 5] Construction procedure for continuous underground wall (1) ・ (2) ・
It is a top view which divides and shows 3 states of (3).
【図６】継手防護部材の引き抜きに使用する引抜き補助
金具３０の側面図である。FIG. 6 is a side view of a pull-out auxiliary metal fitting 30 used for pulling out the joint protection member.
【図７】本発明による継手防護部材の他の例の断面図で
ある。FIG. 7 is a sectional view of another example of the joint protection member according to the present invention.
【図８】本発明による継手防護部材の更に別例の断面図
である。FIG. 8 is a sectional view of still another example of the joint protection member according to the present invention.
【図９】従来の砂充填式の斜視図である。FIG. 9 is a perspective view of a conventional sand filling type.
【図１０】従来の可撓性チューブ式の斜視図である。FIG. 10 is a perspective view of a conventional flexible tube type.
１０・１０a 継手防護部材 １１ 可撓性チューブ １２ 鋼管 １２a 雄ネジ部 １２b 雌ネジ部 ２２ 吹き出し口 ２３ 連壁部材 ２４ 継手部 ２５ 仮受け金具 10 · 10a Joint protection member 11 Flexible tube 12 Steel pipe 12a Male screw portion 12b Female screw portion 22 Outlet port 23 Wall member 24 Joint portion 25 Temporary receiving metal fitting
───────────────────────────────────────────────────── フロントページの続き (72)発明者 石原 公明 東京都港区北青山二丁目５番８号 株式会 社間組内 (72)発明者 早川 雅彦 東京都港区北青山二丁目５番８号 株式会 社間組内 (72)発明者 田崎 和之 東京都千代田区大手町二丁目６番３号 新 日本製鐵株式会社内 (72)発明者 龍田 昌毅 東京都千代田区大手町二丁目６番３号 新 日本製鐵株式会社内 (72)発明者 渡辺 俊雄 東京都港区芝浦一丁目２番３号 清水建設 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kimiaki Ishihara 2-5-8 Kita-Aoyama Minato-ku, Tokyo Stock company inter-company group (72) Inventor Masahiko Hayakawa 2-5-8 Kita-Aoyama Minato-ku, Tokyo Stock company Intra-company group (72) Inventor Kazuyuki Tasaki 2-6-3 Otemachi, Chiyoda-ku, Tokyo Within Nippon Steel Corporation (72) Inventor Masaki Tatsuta 2-3-6 Otemachi, Chiyoda-ku, Tokyo New Nippon Steel Co., Ltd. (72) Inventor Toshio Watanabe 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd.
Claims (4)
の可撓性チューブを順次連結して継ぎ足しながら連壁部
材の鞘状の継手部中に挿入し、最上段の可撓性チューブ
から気体又は液体を圧入充填して全可撓性チューブを継
手部中で膨張させて該継手部を内側から閉塞し、可撓性
チューブを撤去するときには、その内部の空気又は液体
を排出した後、可撓性チューブの引き上げと上記連結部
における分離とを繰り返すことを特徴とする連壁部材の
継手防護方法。1. A flexible tube at the uppermost stage, wherein a plurality of flexible tubes having detachable connecting portions at upper and lower ends are sequentially connected and added while being inserted into a sheath-like joint portion of a wall member. When the flexible tube is removed by injecting gas or liquid from the above to press and fill the flexible tube in the joint to close the joint from the inside, and after discharging the air or liquid in the flexible tube. A method for protecting a joint of a wall member, characterized in that pulling up of the flexible tube and separation at the connecting portion are repeated.
端に至る鋼管を設け、可撓性チューブ相互の鋼管の上下
端部を着脱自在に連結し、該鋼管を通じて全可撓性チュ
ーブ中に空気又は液体を圧入充填するとともに、該鋼管
を使用して可撓性チューブを引き上げることを特徴とす
る請求項１に記載の連壁部材の継手防護方法。2. A steel pipe extending from the upper end to the lower end is provided in each of the flexible tubes, the upper and lower end portions of the steel pipes of the flexible tubes are detachably connected to each other, and all the flexible tubes are connected through the steel pipe. The joint protection method for a wall member according to claim 1, wherein the flexible tube is pulled up by using the steel pipe while pressurizing and filling with air or liquid.
端から下端に至る鋼管を設け、該鋼管の上下端部に継ぎ
足し連結するための雌雄のネジ部を設け、更に該鋼管の
所要箇所に、可撓性チューブ内に気体又は液体を圧入充
填するための吹き出し口を設けたことを特徴とする連壁
部材の継手防護部材。3. A flexible tube having closed upper and lower ends, a steel pipe extending from the upper end to the lower end of the flexible pipe, and male and female screw portions for connecting and connecting to the upper and lower end portions of the steel pipe. A joint protection member for a connecting wall member, characterized in that a blowout port for press-filling a gas or a liquid into a flexible tube is provided at a position.
の仮受け金具を備え、該仮受け金具を上端部に着脱自在
としたことを特徴とする請求項３に記載の連壁部材の継
手防護部材。4. The connecting wall according to claim 3, further comprising a temporary receiving metal fitting for temporarily receiving the upper end of the joint portion of the connecting wall member, wherein the temporary receiving metal fitting is detachably attached to the upper end. Joint protection member for members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10399992A JPH0657742A (en) | 1992-03-31 | 1992-03-31 | Continuous wall material joint protection method and joint protection material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10399992A JPH0657742A (en) | 1992-03-31 | 1992-03-31 | Continuous wall material joint protection method and joint protection material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0657742A true JPH0657742A (en) | 1994-03-01 |
Family
ID=14368996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10399992A Withdrawn JPH0657742A (en) | 1992-03-31 | 1992-03-31 | Continuous wall material joint protection method and joint protection material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0657742A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003529004A (en) * | 2000-03-29 | 2003-09-30 | インターナショナル シート パイリング カンパニー エスエイアールエル | How to make a sheet pile wall |
| KR100756930B1 (en) * | 2006-12-06 | 2007-09-07 | 삼성물산 주식회사 | Buckling restrained steel circular hollow section structure by air-tube and installation method thereof |
| KR100845638B1 (en) * | 2000-07-17 | 2008-07-10 | 엡슨 토요콤 가부시키가이샤 | Piezoelectric oscillator |
-
1992
- 1992-03-31 JP JP10399992A patent/JPH0657742A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003529004A (en) * | 2000-03-29 | 2003-09-30 | インターナショナル シート パイリング カンパニー エスエイアールエル | How to make a sheet pile wall |
| KR100845638B1 (en) * | 2000-07-17 | 2008-07-10 | 엡슨 토요콤 가부시키가이샤 | Piezoelectric oscillator |
| KR100756930B1 (en) * | 2006-12-06 | 2007-09-07 | 삼성물산 주식회사 | Buckling restrained steel circular hollow section structure by air-tube and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990608 |