JPH01223215A - Tube body for grouting - Google Patents
Tube body for groutingInfo
- Publication number
- JPH01223215A JPH01223215A JP4758888A JP4758888A JPH01223215A JP H01223215 A JPH01223215 A JP H01223215A JP 4758888 A JP4758888 A JP 4758888A JP 4758888 A JP4758888 A JP 4758888A JP H01223215 A JPH01223215 A JP H01223215A
- Authority
- JP
- Japan
- Prior art keywords
- tube body
- tube
- mortar
- circumferential
- air
- 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
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 9
- 239000011440 grout Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 229920003002 synthetic resin Polymers 0.000 abstract description 3
- 239000000057 synthetic resin Substances 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、アンカーの定着や構造物にプレストレスを導
入する場合などに使用するグラウト用管体に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a grouting tube used for fixing anchors or introducing prestress into structures.
〈従来の技術〉
引っ張り鋼材を地中に削孔した孔内に挿入し、その挿入
の後あるいは前に孔内にモルタルなどを注入して鋼材の
先端部分を定着する方法が知られている。<Prior Art> A method is known in which a tensile steel material is inserted into a hole drilled underground, and mortar or the like is injected into the hole after or before insertion to fix the tip of the steel material.
その場合に引っ張り鋼材を直接孔内に挿入するのではな
く、その周囲を鋼製、あるいは合成樹脂製の管体で被覆
する方法が開発されている。In this case, instead of directly inserting the tensile steel material into the hole, a method has been developed in which the periphery of the tensile steel material is covered with a tube made of steel or synthetic resin.
ただし通常の管体ではその表面は摩擦係数が小さいから
、引っ張り鋼材の定着の抵抗が小さくなってしまう。However, since the surface of a normal pipe has a small coefficient of friction, the resistance to fixation of the tensile steel material becomes small.
そこで第3図に示すようにグラウト用管体Aの表面に、
円周方向に環状帯Bを突設して抵抗を増加させた工法が
開発されている。Therefore, as shown in Fig. 3, on the surface of the grouting tube A,
A construction method has been developed in which an annular band B is provided protruding in the circumferential direction to increase resistance.
〈従来の技術の問題点〉
公知のグラウト用管体の構造であると、管の内部に注入
したモルタルの上昇時に内部の空気やブリージング水が
十分に排出できない。<Problems with the Prior Art> With the structure of the known grout tube, the air and breathing water inside cannot be sufficiently discharged when the mortar poured into the tube rises.
たとえば、孔が垂直である場合には、モルタルは下から
上昇してくるから、内部の空気やブリージング水は環状
帯に沿って順次押し上げられるから問題は少ない。For example, if the hole is vertical, there will be less problem because the mortar will rise from below and the air and breathing water inside will be pushed up sequentially along the annular zone.
しかし現実には斜め方向に向けて施工する場合が多く、
条件によっては水平方向、あるいは上向き方向に施工す
る場合さえある。However, in reality, construction is often done diagonally.
Depending on the conditions, it may be constructed horizontally or even upwards.
その場合に奥からグラウトを押し出してゆ(と、グラウ
ト用管体Aの内部の空気やブリージング水Wルイタンス
は第4図に示すように、環状帯Bの上側に貯留して、外
部へ出て行(ことができない。In this case, if the grout is pushed out from the inside, the air and breathing water W luitance inside the grout tube A will be stored on the upper side of the annular band B and come out to the outside, as shown in Figure 4. row (can't do it)
その結果せっかく抵抗の大きな形状の管体を使用しても
多数の空気溜まり、ブリージング水の溜まりが残ってし
まい、強度の低下につながることになる。As a result, even if a pipe body having a shape with a large resistance is used, a large number of air pockets and breathing water pockets remain, which leads to a decrease in strength.
〈本発明の目的〉
本発明は上記のような従来の技術の欠点を改善するため
になされたもので、次のようなグラウト用管体を提供す
ることを目的とする。<Objectives of the Present Invention> The present invention has been made in order to improve the drawbacks of the conventional techniques as described above, and an object of the present invention is to provide a grouting tube as described below.
〈イ〉モルタルなどとの管体との間の摩擦抵抗を十分に
とることができるグラウト用管体
〈口〉モルタルなどの注入時に管体の内部の空気や水を
貯留させることな(、完全に外部に排出することのでき
るグラウト用管体
〈本発明の構成〉
次に本発明の実施例をアンカーの施工について説明する
が、その他の構造物の施工にも同様に利用できることは
もちろんである。<A> A grouting tube that can sufficiently take the frictional resistance between the tube and the mortar. A grout tube that can be discharged to the outside <Structure of the present invention> Next, an embodiment of the present invention will be described in connection with the construction of an anchor, but it is of course applicable to the construction of other structures as well. .
〈イ〉全体の構造
引っ張り鋼材PとしてたとえばPCjli線を、グラウ
ト用管体1の内部に収納し、これを孔内に挿入し、挿入
の前または後に管体1の内部と外部にモルタルなどを注
入する方法は従来のアンカーの施工方法と同様である。<A> Whole structure As the tensile steel material P, for example, PCJLI wire is stored inside the grouting tube 1, inserted into the hole, and mortar etc. is applied to the inside and outside of the tube 1 before or after insertion. The injection method is similar to the construction method of conventional anchors.
〈口〉管体の構造(第1図)
本発明の管体1は合成樹脂、金属、アラミド繊維、炭素
繊維、グラスファイバーなどの公知の材料で整形した筒
体である。<Opening> Structure of Tube (FIG. 1) The tube 1 of the present invention is a cylindrical body made of known materials such as synthetic resin, metal, aramid fiber, carbon fiber, and glass fiber.
この管体1の一端(奥側端)は閉塞、あるいは開放状態
に構成し、他端(入口側端)は開放しである。One end (inner end) of this tubular body 1 is configured to be closed or open, and the other end (inlet end) is open.
そして、管体1には円周方向の円周突起2と、長手方向
の篩状突起3を突設した構造である。The tubular body 1 has a structure in which a circumferential protrusion 2 in the circumferential direction and a sieve-like protrusion 3 in the longitudinal direction are protruded.
〈ハ〉円周突起 管体1の円周方向に、多数の円周突起2を突出する。<C> Circumferential protrusion A large number of circumferential protrusions 2 protrude in the circumferential direction of the tube body 1.
この円周突起2は管体1の奥側端がら入口端までの全体
に形成する場合もあるし、管体1の半分、あるいは一部
にだけ形成する場合もある。This circumferential protrusion 2 may be formed on the entire tube body 1 from the back end to the inlet end, or it may be formed only on half or a part of the tube body 1.
第1図に示す円周突起2は、連続したらせん状の突起で
ある。The circumferential projection 2 shown in FIG. 1 is a continuous spiral projection.
しかし各円周方向に鍔状の突起を独立した状態で多数平
行に並べて構成した、らせん状に連続していない突起で
あっても本発明の目的を達成できる。However, the object of the present invention can be achieved even with a protrusion that is not continuous in a spiral shape and is constructed by arranging a large number of independent flange-like protrusions in parallel in each circumferential direction.
さらに円周方向に360度連続していない状態、すなわ
ち不連続の状態で歯車状に、多数の突起を突設させた状
態でも同様に目的を達成できる。Furthermore, the objective can be achieved in the same manner even if a large number of protrusions are provided protrudingly in a gear-like manner that is not continuous 360 degrees in the circumferential direction, that is, discontinuously.
〈二〉篩状突起
管体1の長手方向と平行に、1本または複数本の連続し
た突起を篩状突起3として連続状態に突設する。<2> Phloem-like projection One or more continuous projections are continuously provided as the cribriform projection 3 in parallel with the longitudinal direction of the tube body 1 .
この篩状突起3は排気用、排水用の通路として作用する
ものである。This sieve-like projection 3 acts as a passage for exhaust and drainage.
そのために、篩状突起3の始端は、管体1の奥側端付近
から開始する。Therefore, the starting end of the cribriform process 3 starts near the inner end of the tubular body 1.
そして篩状突起3の終端は、管体1の入口側端まで連続
して開放している。The terminal end of the cribriform projection 3 is continuously open to the inlet side end of the tube body 1.
〈本発明の詳細な説明〉 次に使用状態について説明する。<Detailed description of the present invention> Next, the usage status will be explained.
〈イ〉モルタルの注入
管体lの内部に引っ張り鋼材Pを収納し、内部にモルタ
ル、セメントペースト(以下「モルタル」で代表させる
)などを注入する。<A> Mortar injection A tensile steel material P is stored inside the tube l, and mortar, cement paste (hereinafter referred to as "mortar"), etc. are injected inside.
モルタルの注入には、管体1の最奥部まで細径の注入パ
イプを挿入し、その先端からモルタルを吐出して行う。Mortar is injected by inserting a small-diameter injection pipe to the innermost part of the tubular body 1 and discharging mortar from its tip.
したがってモルタルは管体1の最奥部から注入が始まり
、徐々に孔口側に向けて進行して(ることになる。Therefore, the mortar starts to be poured from the innermost part of the tube body 1 and gradually advances toward the hole side.
なお注入パイプを使用せず、直接本発明の管体1を使用
してモルタルを注入する場合でも同様である。The same applies even when mortar is directly injected using the tube body 1 of the present invention without using an injection pipe.
〈口〉管体の姿勢
管体1へのモルタルを注入する場合には、管体1をどの
状態で寝かせるか、その姿勢が空気や水を追い出すため
に大切である。<Mouth> Posture of the tube body When pouring mortar into the tube body 1, the posture in which the tube body 1 is laid down is important in order to expel air and water.
すなわち本発明の管体1の場合には、複数の篩状突起3
の内の1本を必ず上方に向けて位置させることが大切で
ある。That is, in the case of the tube body 1 of the present invention, a plurality of cribriform projections 3
It is important to always position one of them facing upward.
ただし篩状突起3を多数本形成した場合にはあまり注意
する必要はない。However, when a large number of cribriform projections 3 are formed, there is no need to be very careful.
〈ハ〉排気、排水
モルタルの進行とともに管体1内部の空気や水は全体と
しては管体1の入口側に向けて排出される。<C> Exhaust and Drainage As the mortar progresses, the air and water inside the pipe body 1 as a whole are discharged toward the entrance side of the pipe body 1.
しかし従来技術の問題点の項で説明したように、円周突
起2の奥に溜まった空気や水は排出しに((、特にその
上側にとどまった空気や水は上昇を阻止されるからその
まま残ってしまう。However, as explained in the section on the problems of the prior art, the air and water that have accumulated deep inside the circumferential protrusion 2 cannot be discharged ((especially the air and water that remains above it are prevented from rising, so they remain as they are). It will remain.
ところが本発明の管体1は長手方向に連続した篩状突起
3を形成してあり、それが上側に位置している。However, the tubular body 1 of the present invention has a sieve-like projection 3 continuous in the longitudinal direction, which is located on the upper side.
したがって円周突起2の奥にも空気や水はそこに溜まる
ことがない。Therefore, air and water do not accumulate deep inside the circumferential protrusion 2.
順次、排気通路、排水通路としての篩状突起3を通って
押し出され、順次管体1の入口側端から排出される。The water is sequentially pushed out through the sieve-like protrusion 3 serving as an exhaust passage and a drainage passage, and is sequentially discharged from the inlet side end of the tube body 1.
〈本発明の効果〉
本発明は上記したように、周囲との抵抗の大きなコルゲ
ート形状を有するとともに、その欠点となりやすい排水
、排気の問題を解決したものである。<Effects of the Present Invention> As described above, the present invention has a corrugated shape that has a large resistance to the surroundings, and solves the problems of drainage and exhaust, which are likely to be disadvantages of the corrugated shape.
したがって、次のような効果を期待することができる。Therefore, the following effects can be expected.
〈イ〉管体の円周面に多数の円周突起を突出させて形成
したので、モルタルなどとの摩擦抵抗を十分に大きくと
ることができる。(A) Since a large number of circumferential protrusions are formed to protrude from the circumferential surface of the tube, a sufficiently large frictional resistance with mortar etc. can be obtained.
〈口〉管体の全長にわたって、長手方向に連続する排気
通路、排水通路としての篩状突起を突設した。<Mouth> A sieve-like protrusion that serves as an exhaust passage and a drainage passage that continues in the longitudinal direction is provided over the entire length of the pipe body.
そのために円周突起の上側に溜まりやすいモルタル注入
時の空気やブリージング水を完全に排出することができ
る。Therefore, air and breathing water that tend to accumulate on the upper side of the circumferential protrusion during mortar pouring can be completely discharged.
〈ハ〉以上はアンカーの施工方法を例として説明したが
、橋梁、原子炉、汚水処理タンク、建築構造物などのよ
うな構造物にプレストレスを導入する際にも利用できる
。<C> Although the method for constructing anchors has been explained above as an example, it can also be used to introduce prestress into structures such as bridges, nuclear reactors, sewage treatment tanks, and building structures.
さらにプレストレス構造物ではな(、一般の鉄筋を使用
した構造物の施工の際にも利用できる。Furthermore, it can be used not only for prestressed structures but also for construction of structures using general reinforcing bars.
第1図二本発明の管体の側面図 第2図:その端面図 第3図:従来の工法の説明図 第4図:従来の工法の問題点の説明図 出順人大沢吉勝 Figure 1.2 Side view of the tube body of the present invention. Figure 2: Its end view Figure 3: Illustration of conventional construction method Figure 4: Illustration of problems with conventional construction methods Yoshikatsu Osawa
Claims (1)
ための管体であって、 管体の円周方向に複数段の円周突起を形成するとともに
、 管体の長手方向に連続した少なくとも1本の峰状突起を
形成した、 グラウト用の管体(1) A tube body for injecting mortar etc. placed around a steel material, which has multiple stages of circumferential protrusions in the circumferential direction of the tube body, and at least one continuous protrusion in the longitudinal direction of the tube body. Grout tube with a single peak-like protrusion
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4758888A JPH01223215A (en) | 1988-03-02 | 1988-03-02 | Tube body for grouting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4758888A JPH01223215A (en) | 1988-03-02 | 1988-03-02 | Tube body for grouting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01223215A true JPH01223215A (en) | 1989-09-06 |
Family
ID=12779415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4758888A Pending JPH01223215A (en) | 1988-03-02 | 1988-03-02 | Tube body for grouting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01223215A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS623844B2 (en) * | 1978-10-06 | 1987-01-27 | Fuji Photo Film Co Ltd |
-
1988
- 1988-03-02 JP JP4758888A patent/JPH01223215A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS623844B2 (en) * | 1978-10-06 | 1987-01-27 | Fuji Photo Film Co Ltd |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5079879A (en) | Anti-corrosive post-tensioning anchorage system | |
US20010007185A1 (en) | Method, member, and tendon for constructing an anchoring device | |
US5379562A (en) | Flow-through cap and stirrup for reinforcement bars and method of use thereof | |
EP0476060A1 (en) | Reinforcing bar coupling device | |
JPH01223215A (en) | Tube body for grouting | |
KR20040110204A (en) | Earth anchor including a duplex grouting pipe and the earth anchor construction method using the same | |
KR19990037958A (en) | Materials and methods for lining pipes | |
JPH0959973A (en) | Cast-in-place concrete pile and execution method thereof | |
JPS622083B2 (en) | ||
JPH08311867A (en) | Construction method for high stress-proof pile | |
JPS5817792Y2 (en) | End closure structure of earth anchor sheath | |
JP2517779Y2 (en) | Grout injection hose for anchor construction | |
JP3043990U (en) | Mortar filling type construction tool for rebar joint | |
JPH0355612B2 (en) | ||
JPS6043478B2 (en) | Corrosion prevention treatment method for cables | |
JP2869824B2 (en) | Ground anchor method | |
JP2969173B2 (en) | Construction method of cast-in-place concrete pile | |
JPH01127719A (en) | Construction of ground anchor head | |
SU848663A1 (en) | Ferroconcrete anchor | |
JPH0452807B2 (en) | ||
JPS641611B2 (en) | ||
JPH0941479A (en) | High bearing concrete structure | |
JPH0647967Y2 (en) | Bearing plate with water-stop sheath | |
JPS62112814A (en) | Fixing of anchor | |
JPH0617859Y2 (en) | Anchor bond sheath |