JP3052005B2 - Packer method and packer equipment - Google Patents
Packer method and packer equipmentInfo
- Publication number
- JP3052005B2 JP3052005B2 JP3152212A JP15221291A JP3052005B2 JP 3052005 B2 JP3052005 B2 JP 3052005B2 JP 3152212 A JP3152212 A JP 3152212A JP 15221291 A JP15221291 A JP 15221291A JP 3052005 B2 JP3052005 B2 JP 3052005B2
- Authority
- JP
- Japan
- Prior art keywords
- packer
- sheath
- anchor hole
- hole
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Piles And Underground Anchors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はモルタル等の薬液の逆流
を防止するパッカー工法及びパッカー装置に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packer method and a packer device for preventing backflow of a chemical such as mortar.
【０００２】[0002]
【従来の技術】パッカー工法は、モルタル等の薬液を地
中に加圧注入する際に、薬液の逆流防止を図るため削孔
壁の途上を封鎖する方法の総称で、パッカー装置が用い
られる。 例えば地盤アンカー工法においては、ＰＣ鋼
材の防食を図る筒状のシースの周面途上に取り付けた浮
き輪形のパッカー装置が用いられる。この種のパッカー
装置は素材の観点からゴム製と繊維製に大別され、一般
に前者は水やエアを注入し、後者はセメントミルク等の
固結材を加圧注入して使用している。2. Description of the Related Art The packer method is a general term for a method of closing a hole in a drilled wall in order to prevent a backflow of a chemical solution when a chemical solution such as mortar is injected into the ground under pressure. For example, in the ground anchoring method, a floating ring type packer device attached on the circumferential surface of a tubular sheath for preventing corrosion of PC steel is used. Packers of this type are roughly classified into rubber and fiber from the viewpoint of the material. In general, the former uses water or air, and the latter uses a compaction material such as cement milk under pressure.
【０００３】[0003]
【発明が解決しようとする問題点】前記した従来のパッ
カー工法にあっては、次のような問題点がある。 ＜イ＞ 現在、シースの周面が連続した凹凸形状に形成
されている場合は、パッカー装置とシースの凹凸面間の
密着性が悪い。そのため、アンカー孔内に加圧注入する
モルタル等の薬液の注入圧力が増すほど、シースとパッ
カー装置の周面間から薬液が漏出し易い。 ＜ロ＞ パッカー装置はアンカー孔内の途中で膨脹させ
るため、外部からパッカー装置のシール状態を確認でき
ない。 ＜ハ＞ パッカー装置には水や薬液などの流体を注入す
るホースが接続している。 そのため、削孔の口径が小
さくなるほどパッカー装置の内挿作業が困難となる。The above-mentioned conventional packing method has the following problems. <A> At present, when the peripheral surface of the sheath is formed in a continuous uneven shape, the adhesion between the packer device and the uneven surface of the sheath is poor. Therefore, as the injection pressure of the liquid medicine such as mortar injected under pressure into the anchor hole increases, the liquid medicine is more likely to leak from between the sheath and the peripheral surface of the packer device. <B> Since the packer device expands in the middle of the anchor hole, the seal state of the packer device cannot be checked from the outside. <C> A hose for injecting a fluid such as water or a chemical solution is connected to the packer device. For this reason, the smaller the bore of the hole, the more difficult it is to insert the packer device.
【０００４】[0004]
【本発明の目的】本発明は以上の問題を解決するために
成されたもので、その目的とするところは、シール性能
に優れたパッカー工法及びパッカー装置を提供すること
にある。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a packer method and a packer device having excellent sealing performance.
【０００５】[0005]
【問題点を解決するための手段】本発明は、シースの外
周に膨脹可能な筒状の中空袋を外装し、アンカー孔内で
中空袋を膨脹させて遮蔽するパッカー工法において、シ
ースと中空袋の周面間に、無数の微孔を有する止水層を
介在した後に中空袋を膨脹させ、前記止水層に固結材を
浸透させることを特徴とする、パッカー工法である。さ
らに本発明は、シースの外周に膨脹可能な筒体を外装
し、前記筒体をアンカー孔内で膨脹させて遮蔽するパッ
カー工法において、シースに外装した筒体の両側に圧縮
力を作用させて筒体をアンカー孔及びシースの周面へ向
けて加圧膨脹させることを特徴とする、パッカー工法で
ある。さらに本発明は、アンカー孔の口元に位置するシ
ースの外周に膨脹可能なパッカーを外装し、前記パッカ
ーをアンカー孔内で膨脹させて遮蔽するパッカー工法に
おいて、アンカー孔の孔外に反力板を取り付け、流体の
加圧注入によりパッカーを膨張させた後、アンカー孔内
に充填した固結材の注入圧力によるパッカーの膨張力が
アンカー孔及びシースの周面へ向けて作用するように、
前記反力板でパッカーの膨張方向を規制することを特徴
とする、パッカー工法である。さらに本発明は、シース
の外周に膨脹可能な筒体を外装し、前記筒体をアンカー
孔の口元で膨脹させて遮蔽するパッカー装置において、
アンカー孔の孔外に反力板を取り付け、前記反力板に筒
体の加圧手段を設け、前記筒体の加圧手段としてボルト
の締付力を用い、前記ボルトの締付力を筒体に与えて筒
体をアンカー孔及びシースの周面へ向けて膨脹可能に構
成したことを特徴とする、パッカー装置である。SUMMARY OF THE INVENTION The present invention relates to a packer method in which an inflatable tubular hollow bag is provided on the outer periphery of a sheath and the hollow bag is inflated and shielded in an anchor hole. After interposing a water-stop layer having a myriad of micropores between the peripheral surfaces, the hollow bag is inflated, and a solidifying material is applied to the water-stop layer.
A packer method characterized by infiltration . The present invention exterior inflatable cylindrical body on the outer periphery of the sheath, the packer method for shielding the tubular body is inflated in the anchor hole, the compression on either side of the cylindrical body which is fitted on the sheath
Apply force to move the cylinder toward the anchor hole and the peripheral surface of the sheath.
And a pressurized expansion. The present invention further provides a packer method in which an inflatable packer is provided on the outer periphery of a sheath located at the mouth of the anchor hole, and the packer is expanded and shielded in the anchor hole. After installing a reaction force plate outside and inflating the packer by injecting fluid under pressure, inside the anchor hole
The expansion force of the packer due to the injection pressure of the consolidated material filled in
To act toward the anchor hole and the peripheral surface of the sheath ,
The packer method is characterized in that the direction of expansion of the packer is regulated by the reaction force plate. The present invention further provides a sheath
An inflatable cylinder is provided around the outer periphery of the
In a packer device that expands and shields at the mouth of the hole,
Attach a reaction plate outside the anchor hole, and attach a cylinder to the reaction plate.
Body pressurizing means, and a bolt is used as the cylinder pressurizing means.
The tightening force of the bolt is applied to the cylindrical body by using the tightening force of
The body can be expanded toward the anchor hole and the circumference of the sheath.
It is a packer device characterized by having been completed .
【０００６】[0006]
【実施例１】以下図面を参照しながら本発明について説
明する。Embodiment 1 The present invention will be described below with reference to the drawings.
【０００７】＜イ＞パッカー装置 図１に本発明にかかるパッカー装置の一例を示す。１０
は地中に穿孔したアンカー孔、２０はＰＣ鋼線やＰＣ鋼
より線等の複数のＰＣ鋼材、２１は複数のＰＣ鋼線２０
をまとめて被覆し、周面に連続した凹凸を形成したポリ
エチレン製のシースである。２２、２３はＰＣ鋼材２０
と共にシース２１に内挿し、シース２１の内外にモルタ
ル等の薬液を注入する注入用ホースである。以上の地盤
アンカーの構造は従来と同様である。本発明にかかるパ
ッカー装置は、シース２１の周面に取り付ける浮き輪形
の中空袋３０と、シース２１と中空袋３０の間に介在し
た筒状の止水層３１で構成する。中空袋３０はゴム製ま
たは繊維製からなり、袋の一部には各種の流体を供給す
る圧送ホースが接続されている。止水層３１はそれ自体
が完全な止水性を具備せず、例えば組織内に無数の微孔
を有する発泡ウレタンで構成される。止水層３１を現場
発泡により製作すると、止水層３１の内外面がシース２
１の凹凸面や中空袋３０に密着して、密着性と接着性の
両条件を同時に満足させることができる。<A> Packer Apparatus FIG. 1 shows an example of a packer apparatus according to the present invention. 10
Is an anchor hole drilled in the ground; 20 is a plurality of PC steel materials such as PC steel wires and PC steel strands; 21 is a plurality of PC steel wires 20
And a sheath made of polyethylene with continuous irregularities formed on the peripheral surface. 22 and 23 are PC steel materials 20
In addition, this is an injection hose that is inserted into the sheath 21 and injects a chemical such as mortar into and out of the sheath 21. The structure of the ground anchor described above is the same as the conventional one. The packer device according to the present invention includes a floating ring-shaped hollow bag 30 attached to the peripheral surface of the sheath 21, and a tubular waterproof layer 31 interposed between the sheath 21 and the hollow bag 30. The hollow bag 30 is made of rubber or fiber, and a pressure feeding hose for supplying various fluids is connected to a part of the bag. The water blocking layer 31 does not have complete water blocking properties by itself, and is made of, for example, urethane foam having countless micropores in tissue. When the waterproof layer 31 is manufactured by in-situ foaming, the inner and outer surfaces of the waterproof layer 31 are covered with the sheath 2.
By closely contacting the uneven surface and the hollow bag 30, both conditions of adhesion and adhesion can be satisfied at the same time.
【０００８】＜ロ＞遮蔽方法 図１に示すように一方の注入用ホース２２を利用してシ
ース２１内に内部固結材を注入する。つぎに流体を供給
して中空袋３１を膨脹させる。その結果、中空袋３１の
外周は地山の凹凸に追随して圧着し、中空袋３１の内周
は止水層３１を介してシース２１の外周面に圧着するよ
うに縮径する。つぎに注入用ホース２３を用いてアンカ
ー孔１０内へ外部固結材４０を加圧注入する。外部固結
材４０はアンカー孔１０内の孔底から液位を増し、止水
層３１に浸透する。外部固結材４０の粒子が止水層３１
内の微孔群内を通過する際に目詰まりを起こして止水層
３１に止水機能が付与される。また止水層３１の外周と
中空袋３０の周面間、及び止水層３１の内周とシース２
１の周面間が共に密着しており、しかも止水層３１に止
水性が付与されるため、外部固結材４０の注入圧が外部
に漏れる心配がなく、高圧で注入することができる。<B> Shielding Method As shown in FIG. 1, an internal solidifying material is injected into the sheath 21 using one injection hose 22. Next, a fluid is supplied to expand the hollow bag 31. As a result, the outer periphery of the hollow bag 31 is crimped following the unevenness of the ground, and the inner periphery of the hollow bag 31 is reduced in diameter so as to be crimped to the outer peripheral surface of the sheath 21 via the water blocking layer 31. Next, the external binder 40 is injected under pressure into the anchor hole 10 using the injection hose 23. The external solidifying material 40 increases the liquid level from the bottom of the hole in the anchor hole 10 and permeates the water blocking layer 31. The particles of the external consolidated material 40 are
When passing through the inside of the micropore group, clogging occurs, and the water stopping layer 31 is provided with a water stopping function. Further, between the outer periphery of the water blocking layer 31 and the peripheral surface of the hollow bag 30, and between the inner periphery of the water blocking layer 31 and the sheath 2.
Since the peripheral surfaces of the first and second sealing members 1 are in close contact with each other and the water-stopping layer 31 is provided with water-stopping property, there is no fear that the injection pressure of the external binder 40 leaks to the outside, and the injection can be performed at a high pressure.
【０００９】[0009]
【実施例２】前記実施例１の止水層３１を水膨脹性の材
料で構成しても良い。本実施例によれば水膨脹性の止水
層３１が、外部固結材４０中の水等と反応して膨脹を起
こし、シース２１と中空袋３０との周面間を確実にシー
ルすることができる。Embodiment 2 The water-stopping layer 31 of Embodiment 1 may be made of a water-swellable material. According to the present embodiment, the water-swellable water-stop layer 31 reacts with water or the like in the external solidifying material 40 to expand, thereby securely sealing the gap between the peripheral surfaces of the sheath 21 and the hollow bag 30. Can be.
【００１０】[0010]
【実施例３】図３に示すように、シース２１と中空袋３
０の周面間にゴム製で筒状の止水層３２を介在しても良
い。本実施例の場合、止水層３２の外周面をシース２１
の凹凸外周面と合致する形状に凹凸面に形成しておく。
或いは止水層３２を軟質ゴムで製作すれば前記した凹凸
成形を省略することができる。また止水層３２のシール
性は、中空袋３０の膨脹圧により付与される。また筒体
の止水層３２に代えて、棒状のゴム材を巻き付けてシー
ス２１と中空袋３０の間に介在しても良いこの場合、棒
状のゴムの少なくとも片面は、シース２１の凹凸外周面
と合致する形状に凹凸面に形成しておく必要がある。Embodiment 3 As shown in FIG.
A rubber-made cylindrical water-blocking layer 32 may be interposed between the peripheral surfaces 0. In the case of the present embodiment, the outer peripheral surface of
Is formed on the uneven surface in advance so as to match the outer circumferential surface of the uneven surface.
Alternatively, if the water blocking layer 32 is made of soft rubber, the above-described uneven forming can be omitted. The sealing property of the water blocking layer 32 is given by the inflation pressure of the hollow bag 30. Instead of the water blocking layer 32 of the cylindrical body, a rod-shaped rubber material may be wound and interposed between the sheath 21 and the hollow bag 30. In this case, at least one surface of the rod-shaped rubber is It is necessary to form it on the uneven surface in a shape that matches.
【００１１】[0011]
【実施例４】＜イ＞構成 図４及び図５にその他のパッカー装置を示す。本発明の
パッカー装置は、アンカー孔１０の口元付近をシールす
る、パッカーで、円盤状の固定板５０と加圧板５１の間
に、ゴム等の弾性材からなる筒体５２を挟み込み、筒体
の上下方向から圧縮力を加え、筒体５２を膨脹させてア
ンカー孔１０内をシールする．すなわち、固定板５０に
一体に接続した複数の固定ボルト５３に筒体５２を貫通
し、筒体５２の上部から突出する固定ボルト５３を加圧
板５１に挿通し、さらに加圧板５１から突出する固定ボ
ルト５３を孔外に据え付けた反力板５４にナット５５で
固定する。さらに反力板５４には複数の押込ボルト５６
を螺合し、これら押込ボルト５６の下端を加圧板５１の
上面に押し付ける。この場合、外力を加えない時の筒体
５２の内径はシース２１の外径とほぼ等しいか僅かに大
きく設計し、またその外径はアンカー孔１０とほぼ等し
いか小さく設計しておく。Embodiment 4 <a> Configuration FIGS. 4 and 5 show another packer device. The packer device of the present invention is a packer that seals the vicinity of the mouth of the anchor hole 10, sandwiches a cylindrical body 52 made of an elastic material such as rubber between a disc-shaped fixing plate 50 and a pressing plate 51, and A compressive force is applied from above and below to expand the cylindrical body 52 to seal the inside of the anchor hole 10. That is, a plurality of fixing bolts 53 integrally connected to the fixing plate 50 penetrate the cylindrical body 52, the fixing bolts 53 projecting from the upper part of the cylindrical body 52 are inserted into the pressing plate 51, and the fixing projecting from the pressing plate 51 is further performed. The bolt 53 is fixed with a nut 55 to the reaction force plate 54 installed outside the hole. Further, a plurality of push bolts 56
And press the lower ends of these pushing bolts 56 against the upper surface of the pressure plate 51. In this case, the inner diameter of the cylindrical body 52 when no external force is applied is designed to be approximately equal to or slightly larger than the outer diameter of the sheath 21, and the outer diameter is designed to be approximately equal to or smaller than the anchor hole 10.
【００１２】＜ロ＞作用 図５に示すように押込ボルト５６を締め付けて筒体５２
を上下方向から圧縮すると、筒体５２が横方向に膨脹す
る。その結果、膨脹した筒体５２がアンカー孔１０及び
シース２１の周面形状に追随して圧着し、圧着面間に良
好なシール面が形成される。<B> Operation As shown in FIG.
Is compressed in the vertical direction, the cylinder 52 expands in the horizontal direction. As a result, the expanded cylindrical body 52 is pressed and pressed following the peripheral surface shape of the anchor hole 10 and the sheath 21, and a good seal surface is formed between the pressed surfaces.
【００１３】[0013]
【実施例５】＜イ＞構成 図６にアンカー孔１０の孔外に円盤状の反力板５４を取
り付けボルト５７等で取り付け、反力板５４で筒状のパ
ッカーＡを支持する他のパッカー装置を示す。パッカー
Ａは圧送ホースＢから各種流体の注入圧力で膨脹する公
知のパッカーの他に、既述したシール材を適用すること
ができる。また、反力板５４の一部に内視用のスリット
５８や各種形状の窓を開設しておくと、孔外からパッカ
ーＡの膨脹状態やシール状態を目視できる。Example 5 <b> attached a disc-shaped counter-mounting force plate 54 bolt 5 7 like configuration Figure 6 the hole outside of the anchor hole 10, reaction with a force plate 54 a cylindrical packer A further supporting the 1 shows a packer device. As the packer A, in addition to a known packer that expands by the injection pressure of various fluids from the pressure feeding hose B, the above-described sealing material can be applied. If slits 58 for internal viewing and windows of various shapes are provided in a part of the reaction force plate 54, the expanded state and the sealed state of the packer A can be visually observed from outside the holes.
【００１４】＜ロ＞作用 本実施例によれば、パッカーＡに流体を加圧注入してシ
ース２１の口元を確実にシールした後に、アンカー孔１
０内に外部固結材を注入する。外部固結材を高圧で注入
すると、パッカーＡの底面に外部固結材の押上力が作用
する。この押上力が反力板５４で支持されるため、パッ
カーの膨張力がアンアンカー孔及びシースの周面へ向け
て作用するように、パッカーの膨張方向が規制される。
そのため、長時間に亘り良好なシール性を持続できる。
またスリット５８から覗いて、シール状態や固結材の漏
出を確認しながら作業を行うことができる<B> Operation According to the present embodiment, after the fluid is injected under pressure into the packer A to securely seal the mouth of the sheath 21, the anchor hole 1
An external consolidation material is injected into the inner space. When the external consolidated material is injected at high pressure, the push-up force of the external consolidated material acts on the bottom of the packer A
I do. Since this lifting force is supported by the reaction force plate 54, the
The inflation force of the car is directed toward the anchor and the outer surface of the sheath
The direction of expansion of the packer is regulated so as to act.
Therefore, good sealing properties can be maintained for a long time.
In addition, it is possible to work while checking the sealing state and leakage of the consolidated material by looking through the slit 58.
【００１５】[0015]
【発明の効果】本発明は以上説明したようになるから次
のような効果を得ることができる。As described above, the present invention has the following effects.
【００１６】＜イ＞ 中空袋とシースの周面間に止水層
を介在することで、止水層とシースの凹凸面の間のシー
ル性能が著しく向上する。<A> By interposing the water blocking layer between the hollow bag and the peripheral surface of the sheath, the sealing performance between the water blocking layer and the uneven surface of the sheath is significantly improved.
【００１７】＜ロ＞ 弾性の筒体を上下方向から加圧し
て膨脹させることで、アンカー孔の内周とシースの凹凸
面のとの間の周面間のシール性能が著しく向上する。<B> By compressing the elastic cylinder from above and below to expand it, the sealing performance between the inner periphery of the anchor hole and the uneven surface of the sheath is significantly improved.
【００１８】＜ハ＞ パッカーの設置位置をシースの口
元付近に設定した反力板でパッカーの膨張方向を規制す
ることで、アンカー孔の内周とシースの凹凸面のとの間
の周面間のシール性能が著しく向上する。 <C> The direction in which the packer expands is regulated by a reaction force plate whose position is set near the mouth of the sheath .
Between the inner periphery of the anchor hole and the uneven surface of the sheath.
The sealing performance between the peripheral surfaces is significantly improved.
【図１】 実施例１にかかるパッカー装置の断面図FIG. 1 is a cross-sectional view of a packer device according to a first embodiment.
【図２】 実施例１のシール時におけるパッカー装置の
断面図FIG. 2 is a cross-sectional view of the packer device during sealing according to the first embodiment.
【図３】 実施例３にかかるパッカー装置の断面図FIG. 3 is a sectional view of a packer device according to a third embodiment;
【図４】 実施例４にかかるパッカー装置の断面図FIG. 4 is a sectional view of a packer device according to a fourth embodiment.
【図５】 実施例４のシール時におけるパッカー装置の
断面図FIG. 5 is a cross-sectional view of the packer device during sealing according to a fourth embodiment.
【図６】 実施例５にかかるパッカー装置の断面図FIG. 6 is a sectional view of a packer device according to a fifth embodiment.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀井 光男 大阪府箕面市瀬川１−６−25 (72)発明者 貝田 廣通 大阪府池田市伏尾台３−13−13 (72)発明者 宮原 茂美 大阪府大阪市旭区新森１−７−11−706 (72)発明者 幸村 憲衛 神奈川県横浜市緑区中山町330−３ 中 山パークホームズ221 (72)発明者 青木 雄二郎 神奈川県川崎市宮前区有馬７−２ 鷺沼 ライラック２−507 (72)発明者 柴崎 富士夫 神奈川県座間市入谷４−3011−18東建座 間ハイツ３−903 (72)発明者 斎藤 駿三 神奈川県川崎市麻生区上麻生58−７ (72)発明者 稲村 利男 東京都渋谷区広尾５−４−12 東洋基礎 工業株式会社内 (72)発明者 細岡 修 東京都渋谷区広尾５−４−12 東洋基礎 工業株式会社内 (72)発明者 山口 誠也 東京都渋谷区広尾５−４−12 東洋基礎 工業株式会社内 (56)参考文献 実開 昭63−156227（ＪＰ，Ｕ) 実開 昭63−41689（ＪＰ，Ｕ) アース・アンカー基準化委員会編「ア ース・アンカー工法」（昭54−８−10) 社団法人土質工学会ｐ．105−106 (58)調査した分野(Int.Cl.7，ＤＢ名) E21B 33/12 E02D 5/80 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuo Horii 1-6-25 Segawa, Minoh-shi, Osaka (72) Inventor Hiromichi Kaida 3-13-13, Fushiodai, Ikeda-shi, Osaka (72) Inventor Shigemi Miyahara (72) Inventor Kensuke Yukimura 330-3 Nakayamacho, Midori-ku, Yokohama-shi, Kanagawa Prefecture Nakayama Park Homes 221 (72) Inventor Yujiro Aoki Kawasaki-shi, Kanagawa Prefecture 7-27 Arima, Miyamae-ku 2-507 Saginuma Lilac 2-72 (72) Inventor Fujio Shibasaki 4-3011-18 Iriya, Zama-shi, Kanagawa 3-903 Heights between east buildings (72) Inventor Shunzo Saito Aso-ku, Kawasaki-shi, Kanagawa 58-7 Kamio Aso (72) Inventor Toshio Inamura 5-4-12 Hiroo, Shibuya-ku, Tokyo Toyo Basic Industry Co., Ltd. (72) Inventor Osamu 5-4-12 Hiroo, Shibuya-ku, Tokyo Toyo Basic Industry Co., Ltd. (72) Inventor Seiya Yamaguchi 5-4-12 Hiroo, Shibuya-ku, Tokyo Inside Toyo Basic Industry Co., Ltd. (56) References Japanese Utility Model 1988-63 (JP, U) Japanese Utility Model 63-41689 (JP, U) Earth Anchor Standardization Committee, “Earth Anchor Construction Method” (Showa 54-8-10) Japan Society of Geotechnical Engineers p. 105-106 (58) Field surveyed (Int. Cl. 7 , DB name) E21B 33/12 E02D 5/80
Claims (4)
を外装し、アンカー孔内で中空袋を膨脹させて遮蔽する
パッカー工法において、 シースと中空袋の周面間に、無数の微孔を有する止水層
を介在した後に中空袋を膨脹させ、前記止水層に固結材を浸透させる ことを特徴とする、パ
ッカー工法。1. A sheathed inflatable tubular hollow bag to the outer periphery of the sheath, the packer method of shielding by the swelling of the hollow bag within the anchor hole, between the peripheral surface of the sheath and a hollow bag, countless fine A packer method, wherein a hollow bag is inflated after a water-stop layer having holes is interposed, and a consolidation material is penetrated into the water-stop layer .
し、前記筒体をアンカー孔内で膨脹させて遮蔽するパッ
カー工法において、シースに外装した筒体の両側に圧縮力を作用させて 筒体
をアンカー孔及びシースの周面へ向けて加圧膨脹させる
ことを特徴とする、パッカー工法。2. A packer method in which an inflatable cylinder is sheathed on the outer periphery of a sheath, and the cylinder is inflated and blocked in an anchor hole, by applying a compressive force to both sides of the sheath which is sheathed in the sheath. A packer method, wherein a cylindrical body is pressurized and expanded toward an anchor hole and a peripheral surface of a sheath .
周に膨脹可能なパッカーを外装し、前記パッカーをアン
カー孔内で膨脹させて遮蔽するパッカー工法において、 アンカー孔の孔外に反力板を取り付け、 流体の加圧注入によりパッカーを膨張させた後、アンカー孔内に充填した固結材の注入圧力によるパッカ
ーの膨張力がアンカー孔及びシースの周面へ向けて作用
するように 、前記反力板でパッカーの膨張方向を規制す
ることを特徴とする、パッカー工法。3. A packing method in which an inflatable packer is provided on the outer periphery of a sheath located at the mouth of an anchor hole, and the packer is expanded and shielded in the anchor hole, wherein a reaction plate is provided outside the hole of the anchor hole. After mounting and expanding the packer by pressurized injection of fluid, the packer is injected by the injection pressure of the consolidated material filled in the anchor hole.
-Expansion force acts on the anchor hole and the peripheral surface of the sheath
As to, characterized by regulating the direction of expansion of the packer in the reactive force plate, packer method.
し、前記筒体をアンカー孔の口元で膨脹させて遮蔽する
パッカー装置において、 アンカー孔の孔外に反力板を取り付け、 前記反力板に筒体の加圧手段を設け、 前記筒体の加圧手段としてボルトの締付力を用い、 前記ボルトの締付力を筒体に与えて筒体をアンカー孔及
びシースの周面へ向けて膨脹可能に構成したことを特徴
とする、 パッカー装置 。4. An inflatable cylinder is provided around the outer periphery of the sheath.
Then, the cylindrical body is inflated at the mouth of the anchor hole to be shielded.
In packer device, a reactive force plate attached to the hole outside of the anchor hole, the reactive force plate pressurizing means of the cylindrical body provided, using a bolt tightening force of the pressurizing means of the cylindrical body, tightening of the bolt Applying force to the cylinder to anchor the cylinder
Characterized in that it can be expanded toward the outer surface of the sheath and sheath.
And a packer device .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3152212A JP3052005B2 (en) | 1991-05-29 | 1991-05-29 | Packer method and packer equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3152212A JP3052005B2 (en) | 1991-05-29 | 1991-05-29 | Packer method and packer equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04353190A JPH04353190A (en) | 1992-12-08 |
| JP3052005B2 true JP3052005B2 (en) | 2000-06-12 |
Family
ID=15535525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3152212A Expired - Lifetime JP3052005B2 (en) | 1991-05-29 | 1991-05-29 | Packer method and packer equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3052005B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008248645A (en) * | 2007-03-30 | 2008-10-16 | Psl Japan Kk | Structure of anchor and constructing method of anchor |
| JP5610516B2 (en) * | 2010-04-14 | 2014-10-22 | 一般財団法人電力中央研究所 | Sealing device |
| KR101043966B1 (en) * | 2010-09-07 | 2011-06-24 | 원석기 | Waterproof pack and the the method of waterproofing |
| JP5414924B1 (en) * | 2013-04-26 | 2014-02-12 | 株式会社大阪防水建設社 | Casing pipe |
| KR102381796B1 (en) * | 2021-06-30 | 2022-04-04 | 유세진 | Reusable packer and pressure type slope reinforcement method using this |
-
1991
- 1991-05-29 JP JP3152212A patent/JP3052005B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| アース・アンカー基準化委員会編「アース・アンカー工法」（昭５４−８−１０）社団法人土質工学会ｐ．１０５−１０６ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04353190A (en) | 1992-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4607469A (en) | Seal for water proofing a utility line conduit and a method of forming the seal | |
| CN112031657B (en) | Tunnel lining permeation destruction treatment device and construction method thereof | |
| JP3052005B2 (en) | Packer method and packer equipment | |
| KR20180103776A (en) | Reinforcing structures for inclined plane using steel pipe and steel bar and, reinforcing methods for the same | |
| CN110593808B (en) | Grout stopping plugging device and grouting anchor cable hole sealing grout stopping method | |
| CN113107561B (en) | Self-drilling type combined grouting anchor rod with grout stop plug and suitable for soft rock stratum | |
| WO2014083057A1 (en) | Sealing device and method for sealing fractures or leaks in wall or formation surrounding tube-shaped channel | |
| CN213544581U (en) | High polymer slurry self-expansion characteristic testing device | |
| JP3046548B2 (en) | Fixing material injection method | |
| KR102267049B1 (en) | Watertight Band for Tube Type Rock Bolt | |
| JPH112100A (en) | Up-facing ground anchor and method for its constructing and setting in place | |
| KR101841048B1 (en) | Reinforcing structures for inclined plane using steel pipe and steel bar and, reinforcing methods for the same | |
| JPH0686800B2 (en) | Filling material injection method | |
| CN113107564A (en) | Anchor rod structure for fixing water-rich karst tunnel surrounding rock and using method thereof | |
| EP1017926A1 (en) | Injection device and injection method | |
| JP2945218B2 (en) | Construction method of ground anchor and waterproofing device used for it | |
| KR980002473A (en) | New Earth Anchor Technique | |
| KR20000045953A (en) | Earth anchor using pressurizing expandable membrane | |
| US3238973A (en) | Sealing underground conduits | |
| JP2001131952A (en) | Injecting method of ground improving agent and injecting device used therefor | |
| JP2636139B2 (en) | Wellhead sealing device | |
| CN212272259U (en) | Whole set grouting anchor cable | |
| JP2573880B2 (en) | Method and apparatus for measuring pore water pressure in ground | |
| CN221345599U (en) | Anchor cable repeatable pressurized supplementary grouting device | |
| JP2002180780A (en) | Sealing method for shaft arrival of shield machine and its device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090407 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090407 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100407 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120407 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120407 Year of fee payment: 12 |