JPH0213544Y2 - - Google Patents
Info
- Publication number
- JPH0213544Y2 JPH0213544Y2 JP10249784U JP10249784U JPH0213544Y2 JP H0213544 Y2 JPH0213544 Y2 JP H0213544Y2 JP 10249784 U JP10249784 U JP 10249784U JP 10249784 U JP10249784 U JP 10249784U JP H0213544 Y2 JPH0213544 Y2 JP H0213544Y2
- Authority
- JP
- Japan
- Prior art keywords
- tip
- corrugated tube
- anchor
- anchor cable
- grout hose
- 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
Links
- 239000011440 grout Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010276 construction 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
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Description
【考案の詳細な説明】
本考案はアースアンカーの構造に関するもので
ある。[Detailed Description of the Invention] The present invention relates to the structure of an earth anchor.
(イ) 本考案の目的
〔産業上の利用分野〕
各種構造物の引張り力を発生するアンカー等に
利用可能。(a) Purpose of the invention [Industrial field of application] Can be used as anchors that generate tensile force for various structures.
本考案は、簡単な構造で、作業性および耐久性
に優れたアースアンカーの構造を提供する事を目
的とする。
The purpose of the present invention is to provide an earth anchor structure that has a simple structure, excellent workability, and durability.
(ロ) 考案の構成
以下本考案のアースアンカーの構造について図
面を参照しながら説明する。(b) Structure of the invention The structure of the earth anchor of the invention will be explained below with reference to the drawings.
〔アンカーの全体の説明〕（第１図）
アースアンカー１はアンカーケーブル１１の外
周に、アンカーケーブル１１の自由長部を被覆す
るストレート管２１と定着長部を被覆する波形管
２２が接続してなるシース２を外装し、さらに、
このシース２内にはグラウトホース１２をアンカ
ーケーブル１１の内側を経てシース２の頭部まで
連絡して形成する。[Overall description of the anchor] (Figure 1) The earth anchor 1 has a straight tube 21 that covers the free length of the anchor cable 11 and a corrugated tube 22 that covers the fixed length of the anchor cable 11 connected to the outer periphery of the anchor cable 11. The sheath 2 is sheathed, and further,
A grout hose 12 is formed in the sheath 2 so as to communicate through the inside of the anchor cable 11 and reach the head of the sheath 2.
以下各部の構造について説明する。 The structure of each part will be explained below.
アンカーケーブル１１としては例えばPC鋼線、
もしくはPC鋼より線等の全周にグリース等を塗
布した後防蝕性のコーテイング材で被覆したもの
を使用する。
As the anchor cable 11, for example, a PC steel wire,
Alternatively, use a PC steel stranded wire that has been coated with grease or the like all around it and then covered with a corrosion-resistant coating material.
シース２は両端を開放したストレート管２１と
波形管２２からなり、プラスチツク等の公知の素
材で形成する。
The sheath 2 consists of a straight tube 21 and a corrugated tube 22 with both ends open, and is made of a known material such as plastic.
ストレート管２１はアンカーケーブル１１の自
由長部を被覆する円筒である。 The straight tube 21 is a cylinder that covers the free length of the anchor cable 11.
これに対し波形管２２は内外の両周面に波形状
の凹凸面を形成し、アンカーケーブル１１の定着
長部を被覆する管である。 On the other hand, the corrugated tube 22 is a tube that has a corrugated surface formed on both the inner and outer circumferential surfaces and covers the fixed length portion of the anchor cable 11 .
ストレート管２１と波形管２２の接合は、例え
ば両管２１，２２に接続可能なジヨイント管を中
間に介して接続する事が可能である。 The straight pipe 21 and the corrugated pipe 22 can be connected, for example, by connecting a joint pipe that can be connected to both the pipes 21 and 22 via an intermediate pipe.
ジヨイント管を使用する場合、ジヨイント管の
外周にアスフアルト等のパツキン材等を配置した
うえに熱収縮性のポリエチレン管を外装した後、
このポリエチレン管を加熱収縮させてバツト溶接
を行なうと、良好な止水性を確保した状態で両管
２１，２２を結合する事ができる。 When using a jointed tube, place a packing material such as asphalt around the outer circumference of the jointed tube, cover it with a heat-shrinkable polyethylene tube, and then
By heat-shrinking this polyethylene pipe and performing butt welding, both pipes 21 and 22 can be joined while ensuring good water-stopping properties.
波形管２２の頭部内側には第２図に示すよう
に、短形の鋼管等からなるグラウトホース防護管
４とアンカー先端部防護管４１からなる二重管を
内挿する。
As shown in FIG. 2, inside the head of the corrugated tube 22, a double tube consisting of a grout hose protection tube 4 made of a short steel pipe or the like and an anchor tip protection tube 41 is inserted.
すなわち、両防護管４，４１はアンカーケーブ
ル１１先端の内外両側から挟持してアンカーケー
ブル１１の先端を固定して保護する目的の管であ
る。 That is, both protection tubes 4 and 41 are tubes for the purpose of securing and protecting the tip of the anchor cable 11 by sandwiching it from both the inside and outside sides of the tip of the anchor cable 11.
両防護管４，４１を設置するには、波形管２２
内にセメントミルク６等の充填材を充填する際、
あらかじめアンカーケーブル１１の先端部の内側
とグラウトホース１２の間にはグラウトホース防
護管４を配置し、さらに、アンカーケーブル１１
の外周にはアンカー先端部防護管４１を配置す
る。 To install both protection pipes 4, 41, corrugated pipe 22
When filling the inside with filler such as cement milk 6,
A grout hose protection pipe 4 is placed in advance between the inside of the tip of the anchor cable 11 and the grout hose 12, and the anchor cable 11
An anchor tip protection tube 41 is arranged around the outer periphery of the anchor.
次に、波形管２２の先端開放口をアスフアルト
等の止水材５で閉塞してアンカー先端部防護管４
１の一端を止水材５に埋設して設置する。 Next, the tip opening of the corrugated tube 22 is closed with a water stop material 5 such as asphalt, and the anchor tip protection tube 4 is closed.
1 is installed by embedding one end in the water stop material 5.
この際、波形管２２の閉塞した頭部面から、グ
ラウトホース１２の先端を僅かに突出させてお
く。 At this time, the tip of the grout hose 12 is made to slightly protrude from the closed head surface of the corrugated pipe 22.
波形管２２の頭部先端には有天筒体からなる先
端キヤツプを取り付け、突出するグラウトホース
１２を保護する。
A tip cap made of a cylindrical body is attached to the tip of the head of the corrugated tube 22 to protect the protruding grout hose 12.
先端キヤツプ２３は筒体の周囲にグラウト放出
口２４を複数開設し、グラウトホース１２から噴
出するグラウト材をこのグラウト放出口２４から
キヤツプ２３の外部に放出できるよう構成する。 The tip cap 23 has a plurality of grout discharge ports 24 around the cylindrical body, and is configured so that the grout material spouted from the grout hose 12 can be discharged from the grout discharge ports 24 to the outside of the cap 23.
先端キヤツプ２３は、熱収縮性を有する強化プ
ラスチツク等で形成し、このキヤツプ２３の開放
口側を波形管２２の頭部に外装して熱収縮による
バツト溶接で波形管２２に一体に取り付ける。 The tip cap 23 is formed of a heat-shrinkable reinforced plastic or the like, and the open end of the cap 23 is wrapped around the head of the corrugated tube 22 and integrally attached to the corrugated tube 22 by butt welding using heat shrinkage.
ストレート管２１と波形管２２をバツト溶接で
接合してシース２を形成し、このシース２内に、
アンカーケーブル１１を内挿するとともに、波形
管２２の頭部には二重管を配置して止水材５で閉
塞した後先端キヤツプ２３を取り付け、かつ、波
形管２２の基端側の開口を閉塞して形成した波形
管２２内の空間内にセメントミルク６等を封入し
てアンカーを形成する。
A straight pipe 21 and a corrugated pipe 22 are joined by butt welding to form a sheath 2, and inside this sheath 2,
In addition to inserting the anchor cable 11, a double pipe is placed at the head of the corrugated tube 22, and a rear end cap 23 closed with a waterproof material 5 is attached, and the opening on the proximal end side of the corrugated tube 22 is closed. An anchor is formed by sealing cement milk 6 or the like in the space inside the corrugated tube 22 formed by closing.
完成したアンカーはアンカー孔７内に挿入した
後、このアンカー孔７内にグラウト充填して先端
部の定着を図り、アンカーの基端側を緊張して設
置する等公知の施工法に従つて使用する。
After the completed anchor is inserted into the anchor hole 7, the anchor hole 7 is filled with grout to fix the tip, and the base end of the anchor is placed under tension, and used according to known construction methods. do.
(ハ) 本考案の効果
本考案は以上説明したようになるので次のよう
な効果を期待する事ができる。(c) Effects of the present invention Since the present invention is as explained above, the following effects can be expected.
(1) 波形管の頭部先端に先端キヤツプを取り付け
たので、作業中にグラウトホースの先端を潰し
たりせずに安全に保護できる。(1) A tip cap is attached to the tip of the head of the corrugated pipe, so the tip of the grout hose can be safely protected from being crushed during work.
また、アースアンカーを上向きにして使用し
た場合には、先端キヤツプがスライムの巻込み
を防止できるのでグラウト作業を良好に行なう
ことができる。 Furthermore, when the earth anchor is used with the earth anchor facing upward, the tip cap can prevent slime from getting caught up in the grouting work.
(2) 波形管の頭部に二重管を埋設したので、複数
本のPC鋼より線群を確実に固定することがで
き、さらに、これらのPC鋼より線等からなる
アンカーケーブルの先端を確実に保護すること
もできる。(2) Since a double pipe is embedded in the head of the corrugated pipe, multiple prestressed steel stranded wires can be securely fixed, and the tip of the anchor cable made of these prestressed steel stranded wires can be fixed securely. It can also be securely protected.
(3) シースを構成するストレート管と波形管の接
続作業は両管の接続部分に止水材を介して熱収
縮によるバツト溶接を行なえるので止水材が圧
縮されて接続部分に発生する間隙を解消でき
る。(3) When connecting the straight pipe and corrugated pipe that make up the sheath, heat shrinkage can be used to butt weld the connecting part of both pipes with a water stop material in between, so the water stop material is compressed and there is no gap created at the connection part. can be resolved.
従つて、緊張時に高い外圧が作用しても両管
の接合部分に亀裂を生じることなく、地下水や
ガスの進入を阻止して良好な防蝕効果を期待で
きる。 Therefore, even if a high external pressure is applied during tension, no cracks will occur at the joint between the two pipes, and a good corrosion prevention effect can be expected by preventing the ingress of groundwater and gas.
第１図：アースアンカーの全体説明図、第２
図：波形管の頭部の説明図。
１……アースアンカー、２……シース、４……
グラウトホース防護管、５……止水材、１１……
アンカーケーブル、１２……グラウトホース、２
１……ストレート管、２２……波形管、２３……
先端キヤツプ、２４……グラウト放出口。
Figure 1: Overall illustration of earth anchor, Figure 2
Figure: Explanatory diagram of the head of the corrugated tube. 1...Earth anchor, 2...Sheath, 4...
Grout hose protection pipe, 5...Water stop material, 11...
Anchor cable, 12... Grout hose, 2
1... Straight tube, 22... Corrugated tube, 23...
Tip cap, 24... grout outlet.
Claims (1)
し、 前記波形管の頭部先端には、アンカーケーブル
群の中心部に内挿するグラウトホースを突出さ
せ、 このグラウトホースの突出する波形管の頭部先
端には有天筒体の保護キヤツプを取り付け、 波形管の先端開放口は止水材で閉塞し、 この止水材に端部を埋設して、アンカーケーブ
ル群の外周囲に配置した管体と、 アンカーケーブル群の先端部近傍とグラウトホ
ース間に配置した別途の管体により、アンカーケ
ーブル群の先端部近傍を二重に保護し、 波形管内に硬化材を充填したことを特徴とす
る、 アースアンカーの構造。[Claims for Utility Model Registration] A straight tube covering the free length is integrally joined to the proximal end of the corrugated tube covering the fixed length, and the center of the anchor cable group is attached to the tip of the head of the corrugated tube. A grout hose inserted into the grout hose is made to protrude, a protective cap made of a cylindrical body is attached to the tip of the head of the corrugated tube that protrudes from the grout hose, and the opening at the tip of the corrugated tube is closed with a water-stopping material. A pipe body is placed around the outer circumference of the anchor cable group with its end buried in waterproof material, and a separate pipe body is placed near the tip of the anchor cable group and between the grout hose. The structure of the earth anchor is characterized by double protection of the surrounding area and a corrugated tube filled with hardening material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10249784U JPS6119038U (en) | 1984-07-09 | 1984-07-09 | Earth anchor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10249784U JPS6119038U (en) | 1984-07-09 | 1984-07-09 | Earth anchor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6119038U JPS6119038U (en) | 1986-02-04 |
| JPH0213544Y2 true JPH0213544Y2 (en) | 1990-04-13 |
Family
ID=30661896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10249784U Granted JPS6119038U (en) | 1984-07-09 | 1984-07-09 | Earth anchor structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6119038U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0621953Y2 (en) * | 1990-05-22 | 1994-06-08 | 建設基礎エンジニアリング株式会社 | Deformed sheath of structure fixing device |
-
1984
- 1984-07-09 JP JP10249784U patent/JPS6119038U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6119038U (en) | 1986-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4799307A (en) | Anchor apparatus for a tendon in prestressed concrete slab | |
| JPH0240813B2 (en) | ||
| CN104846824A (en) | Protective rod, rod for concrete structure, manufacturing process of rod body and anchor rod | |
| JPH0213544Y2 (en) | ||
| CN202202258U (en) | Omni-sealing type inhaul cable | |
| US4928451A (en) | Anchor apparatus for a tendon in prestressed concrete slab | |
| JPH11264135A (en) | Anchor structural body | |
| JPH0324665Y2 (en) | ||
| JPS61142223A (en) | Prevention of corrosion of permanent anchor head | |
| JPH0355629Y2 (en) | ||
| JP3628626B2 (en) | Anchor cable | |
| JPH0137532B2 (en) | ||
| JP7572982B2 (en) | PC steel protective sheath | |
| JPS62146320A (en) | Anchoring work | |
| JPH0324666Y2 (en) | ||
| CN212294346U (en) | Sealing protection device for steel strand stay cable anchorage device connecting section | |
| JPS6143035Y2 (en) | ||
| JPS63130821A (en) | Structure of anchor cable | |
| JP2937644B2 (en) | Water stoppage treatment method for back of anchor head and apparatus therefor | |
| JPH10169885A (en) | Method for protecting cable, and protective pipe for cable | |
| JPH0340923Y2 (en) | ||
| JPH06336727A (en) | Permanent anchor and constructing method therefor | |
| KR200315925Y1 (en) | Waterproof structure of covered tension member for permanent ground anchor | |
| JPS6136004Y2 (en) | ||
| JP2584895Y2 (en) | Cut end structure of unbonded PC steel strand |