JP2002061181A - Ground structure for ground anchor - Google Patents
Ground structure for ground anchorInfo
- Publication number
- JP2002061181A JP2002061181A JP2000253616A JP2000253616A JP2002061181A JP 2002061181 A JP2002061181 A JP 2002061181A JP 2000253616 A JP2000253616 A JP 2000253616A JP 2000253616 A JP2000253616 A JP 2000253616A JP 2002061181 A JP2002061181 A JP 2002061181A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- anchor
- pressure receiving
- receiving member
- pressing force
- 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.)
- Granted
Links
Landscapes
- Piles And Underground Anchors (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、グラウンドアンカ
ー工法においてアンカー引張部材の地上部分に固定さ
れ、地盤に対する押圧力を適切に分散させて地盤を保持
するグラウンドアンカー地上構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground anchor ground structure which is fixed to a ground portion of an anchor tension member in a ground anchor construction method and which holds a ground by appropriately dispersing a pressing force against the ground.
【０００２】[0002]
【従来の技術】造成した法面もしくは斜面に対し、地盤
崩壊による地滑りの発生等を防ぐために、グラウンドア
ンカーで地盤を安定化する工事が従来から広く行われて
きた。従来のグラウンドアンカー設置の一般的な工法
は、鋼線等からなるアンカー引張部材を地盤中に挿入し
てその一端部を地盤中に定着・固定する一方、アンカー
引張部材他端側を地上に露出させた状態とし、さらにコ
ンクリート製や鋼板製のアンカー受圧部材（アンカー台
座）を地盤表面に設置した後、前記アンカー引張部材を
所定の張力が得られるまで緊張した状態でその地上露出
部分をアンカー受圧部材に一体に固着させるというもの
であり、アンカー引張部材の張力を一体のアンカー受圧
部材から地盤に伝えるようにして地盤を安定に保持する
仕組みとなっている。2. Description of the Related Art In order to prevent the occurrence of landslides or the like due to ground collapse on slopes or slopes that have been created, ground stabilization work has conventionally been widely performed. The general construction method of conventional ground anchor installation is to insert an anchor tension member made of steel wire or the like into the ground and fix and fix one end of the anchor tension in the ground, while exposing the other end of the anchor tension member to the ground After the anchor receiving member (anchor pedestal) made of concrete or steel plate is installed on the ground surface, the anchor exposed member is tensioned until a predetermined tension is obtained. The anchor is integrally fixed to the member, and the ground is stably held by transmitting the tension of the anchor tension member from the integral anchor pressure receiving member to the ground.
【０００３】[0003]
【発明が解決しようとする課題】従来のグラウンドアン
カー設置工事は以上のように行われていたが、アンカー
受圧部材の設置される地盤表面のうち、アンカー引張部
材を挿入固定するため地盤に穿設された穿孔の開口部分
は、アンカー引張部材を地盤に固定するまでの孔内洗浄
やグラウト注入などの諸作業を経て削られて地盤表面に
向うほど拡開状に広がった形状となり、地盤表面の他部
分に対して大きく凹んだ状態となっている。The conventional ground anchor installation work has been carried out as described above. However, of the ground surface on which the anchor pressure receiving member is installed, drilling is performed on the ground to insert and fix the anchor tension member. The opening part of the drilled hole was cut through various operations such as cleaning inside the hole and grouting until the anchor tension member was fixed to the ground, and it became a shape that expanded in a wider manner toward the ground surface, and the ground surface It is in a state of being greatly depressed with respect to other parts.
【０００４】このため、そのままアンカー受圧部材を地
盤表面に設置してアンカー引張部材と一体化させた場
合、前記した凹んだ穿孔開口部においてアンカー受圧部
材と地盤とが密着できず、この部分の地盤に対しアンカ
ー受圧部材から押圧力を伝達できない状態となり、地盤
の保持強度が十分確保できないという課題を有してい
た。[0004] Therefore, when the anchor pressure receiving member is directly installed on the ground surface and integrated with the anchor tension member, the anchor pressure receiving member and the ground cannot be brought into close contact with each other at the above-mentioned recessed opening, and the ground at this portion is not allowed. On the other hand, the pressing force cannot be transmitted from the anchor pressure receiving member, and there is a problem that the holding strength of the ground cannot be sufficiently secured.
【０００５】一方、凹んだ穿孔開口部を土嚢の投入やグ
ラウト注入等で埋める工事も従来から行われていたが、
埋め戻した凹み部分にアンカー受圧部材からの押圧力を
分担させるのに十分な強度を与えることは困難で、アン
カー受圧部材と地盤との間の隙間が外部から見えなくな
るといった見栄えの改善程度に留まり、アンカー受圧部
材から地盤へ一部押圧力を伝達できない状態は変らない
という課題を有していた。[0005] On the other hand, the work of filling the recessed opening with sandbags or grouting has been carried out.
It is difficult to give enough strength to share the pressing force from the anchor pressure receiving member to the buried recessed portion, and it only improves the appearance such that the gap between the anchor pressure receiving member and the ground becomes invisible from the outside. However, there has been a problem that the state in which partial pressing force cannot be transmitted from the anchor pressure receiving member to the ground remains unchanged.
【０００６】また、凹んだ穿孔開口部に加えて地盤表面
に不陸がある場合は、さらにアンカー受圧部材と地盤と
の接触面積がとれず、アンカー引張部材からの力がアン
カー受圧部材から地盤のごく一部に集中して加わること
もあり、地盤に対する十分な保持強度を確保できず、保
持が適切に行えなくなることに加え、アンカー受圧部材
の応力集中による変形や破損を招くことがあるという課
題を有していた。When the ground surface has irregularities in addition to the recessed opening, the contact area between the anchor pressure receiving member and the ground cannot be further increased, and the force from the anchor tension member causes the ground from the anchor pressure receiving member to move from the anchor pressure receiving member to the ground. In some cases, it is concentrated in a very small area, and it is not possible to secure sufficient holding strength to the ground, making it impossible to hold properly, and in addition to causing deformation or damage due to stress concentration of the anchor pressure receiving member. Had.
【０００７】さらに、従来はグラウンドアンカーを一度
設置すると、以降は破損するまでそのままの状態とさ
れ、メンテナンス等は行われないため、グラウンドアン
カー自体の経年変化や、地盤周囲の環境変化に伴って地
盤の保持力が変っても適切に対応できず、地滑りなど地
盤の崩落などが起りやすくなっている場合でもこれらを
防止できなくなる危険性が高いという課題を有してい
た。Further, conventionally, once the ground anchor is installed, the ground anchor is kept as it is until it is damaged and maintenance is not performed. Therefore, the ground anchor itself changes over time and the ground changes due to environmental changes around the ground. However, there is a problem that even if the holding force of the ground changes, it cannot cope properly, and there is a high risk that even if the collapse of the ground such as a landslide is likely to occur, it cannot be prevented.
【０００８】本発明は前記課題を解決するためになされ
たもので、アンカー引張部材を挿入された穿孔の拡開し
た開口部分に押圧力分散体が嵌り込んでアンカー受圧部
材と地盤との間の空隙を埋め、アンカー受圧部材からの
力を適切に地盤に伝えて地盤の保持力を高めると共に、
地盤の状態変化に対応して押圧状態を調整可能とし、地
盤を長期にわたって確実に保持できるグラウンドアンカ
ー地上構造を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a pressing force dispersing member is fitted into an expanded opening portion of a hole into which an anchor tension member is inserted, so that a gap between the anchor pressure receiving member and the ground is provided. Fill the gap and properly transmit the force from the anchor pressure receiving member to the ground to increase the holding power of the ground,
An object of the present invention is to provide a ground anchor ground structure capable of adjusting a pressing state in accordance with a change in the state of the ground and capable of reliably holding the ground for a long period of time.
【０００９】[0009]
【課題を解決するための手段】本発明に係るグラウンド
アンカー地上構造は、貫通状態の中心孔を穿設された略
台状体で形成され、地盤の所定の穿孔に挿入・固定され
ているアンカー引張部材の地上露出部分を前記中心孔に
通した状態で前記地盤表面に設置され、且つ前記アンカ
ー引張部材の地上露出部分に一体に固着されるアンカー
受圧部材と、貫通状態の中心孔を穿設された略円錐状体
で形成され、前記アンカー引張部材の地上露出部分を前
記略円錐状体の中心孔に通した状態で地盤における前記
穿孔の開口部分に略円錐状体の尖端側を地盤側に向けて
嵌め込まれ、前記アンカー受圧部材と地盤との間に配設
される押圧力分散体とを備えるものである。このように
本発明においては、アンカー受圧部材と地盤との間に略
円錐状体の押圧力分散体を配設し、アンカー受圧部材の
地盤に対する押圧力を押圧力分散体で穿孔の開口部分に
も伝えることから、アンカー引張部材の張力をアンカー
受圧部材と押圧力分散体でスムーズに地盤に伝達して地
盤を確実に押圧できることとなり、一つのアンカー受圧
部材における地盤保持力を大きく向上させて安全性と信
頼性が高まると共に、地盤保持力の増大に伴ってアンカ
ー工事対象となる地盤をより効率よく押圧でき、アンカ
ー設置数削減も図れるなどアンカー工事全体で省力化と
コスト削減が可能となる。SUMMARY OF THE INVENTION A ground anchor ground structure according to the present invention is formed of a substantially trapezoidal body having a center hole in a penetrating state, and is inserted and fixed in a predetermined hole in the ground. An anchor pressure receiving member installed on the ground surface with a ground exposed portion of the tension member passed through the center hole and integrally fixed to the ground exposed portion of the anchor tension member, and a through-hole center hole is formed. In the state where the ground exposed part of the anchor tension member is passed through the center hole of the substantially conical body, the tip side of the substantially conical body is placed on the ground side with the opening part of the perforation in the ground in a state where the exposed part of the anchor tension member is passed through the center hole of the substantially conical body And a pressing force dispersing member disposed between the anchor pressure receiving member and the ground. As described above, in the present invention, a substantially cone-shaped pressing force dispersion is disposed between the anchor pressure receiving member and the ground, and the pressing force of the anchor pressure receiving member against the ground is applied to the opening portion of the perforation by the pressing force dispersion. Also, the tension of the anchor tension member can be smoothly transmitted to the ground by the anchor pressure receiving member and the pressing force disperser, and the ground can be reliably pressed, and the ground holding force of one anchor pressure receiving member is greatly improved and safety is improved. In addition to improving the reliability and reliability, the ground to be anchored can be pressed more efficiently with the increase in the ground holding power, and the number of anchors to be installed can be reduced, so that labor saving and cost reduction can be achieved in the entire anchoring work.
【００１０】また、本発明に係るグラウンドアンカー地
上構造は必要に応じて、前記アンカー受圧部材と押圧力
分散体との間における一又は複数の所定箇所に配設さ
れ、当該所定箇所におけるアンカー受圧部材と押圧力分
散体の相互間の圧力状態を検知し、取得した情報を外部
の管理手段に送信する所定の圧力検知手段を備えるもの
である。このように本発明においては、アンカー受圧部
材と押圧力分散体との間に圧力検知手段を配設し、この
圧力検知手段にアンカー受圧部材と押圧力分散体の相互
間の圧力状態を検知させて取得情報を外部に送信させ、
この送信情報を受けて外部からアンカー受圧部材及び押
圧力分散体における圧力変化を監視して地盤保持状態の
変化を確認できることにより、グラウンドアンカー各部
の経年変化やアンカー設置箇所周囲の環境変化に伴って
地盤の保持状態が変った場合でもこうした変化に対応し
て十分な対策を施すことができ、安全な地盤保持状態を
長期にわたり維持できる。The ground anchor ground structure according to the present invention is provided at one or a plurality of predetermined locations between the anchor pressure receiving member and the pressing force dispersing member as required, and the anchor pressure receiving member at the predetermined location is provided. And a predetermined pressure detecting means for detecting a pressure state between the pressure dispersing element and the obtained pressure information and transmitting the acquired information to an external management means. As described above, in the present invention, the pressure detecting means is provided between the anchor pressure receiving member and the pressing force dispersing element, and the pressure detecting means detects the pressure state between the anchor pressure receiving member and the pressing force dispersing element. To send the acquired information to the outside,
By receiving this transmission information and monitoring the pressure change in the anchor pressure receiving member and the pressing force disperser from the outside and confirming the change in the ground holding state, it is possible to confirm the secular change of each part of the ground anchor and the environmental change around the anchor installation location Even when the ground holding state changes, sufficient countermeasures can be taken in response to such changes, and a safe ground holding state can be maintained for a long period of time.
【００１１】また、本発明に係るグラウンドアンカー地
上構造は必要に応じて、前記アンカー受圧部材と押圧力
分散体との間における一又は複数の所定箇所に配設さ
れ、当該所定箇所におけるアンカー受圧部材と押圧力分
散体との間隔を変化させる所定の間隔調整手段を備える
ものである。このように本発明においては、アンカー受
圧部材と押圧力分散体との間に間隔調整手段を配設し、
アンカー受圧部材と押圧力分散体との間隔を一様に調整
してアンカー受圧部材の地盤からの高さを変化させた
り、アンカー受圧部材と押圧力分散体の所定箇所におけ
る互いの間隔を変化させて一方の他方に対する傾きを変
化させたりすることにより、アンカー受圧部材据付け時
の地盤表面に対する高さ位置及び向きの調整が適切且つ
容易に行え、地盤表面の不陸に対しアンカー受圧部材の
設置姿勢を調整して適切に対応させられ、アンカー受圧
部材から地盤へ押圧力を確実に分散させて伝達できる状
態が得られる。さらに、グラウンドアンカー各部の経年
変化やアンカー設置箇所周囲の環境変化に伴って地盤の
保持状態が変った場合でも、こうした変化に合わせて間
隔調整手段による間隔調整を行ってアンカー受圧部材及
び押圧力分散体での地盤の保持状態を適切な状態に修正
できることとなり、安全な地盤保持状態を長期にわたり
維持できる。Further, the ground anchor ground structure according to the present invention is provided at one or a plurality of predetermined locations between the anchor pressure receiving member and the pressing force dispersing member as required, and the anchor pressure receiving member at the predetermined location is provided. And a predetermined distance adjusting means for changing the distance between the pressing force dispersing element and the pressing force dispersing element. Thus, in the present invention, the distance adjusting means is disposed between the anchor pressure receiving member and the pressing force dispersion,
The height of the anchor pressure receiving member from the ground is changed by uniformly adjusting the distance between the anchor pressure receiving member and the pressing force dispersion, or the distance between the anchor pressure receiving member and the pressing force dispersion at a predetermined position is changed. By changing the inclination with respect to one another, the height position and orientation with respect to the ground surface at the time of installation of the anchor pressure receiving member can be appropriately and easily adjusted, and the installation posture of the anchor pressure receiving member against unevenness of the ground surface. Is adjusted so that the pressing force can be reliably dispersed and transmitted from the anchor pressure receiving member to the ground. Furthermore, even if the ground holding condition changes due to the aging of each part of the ground anchor or the environmental change around the anchor installation location, the spacing adjustment means adjusts the spacing according to these changes to disperse the anchor pressure receiving member and the pressing force distribution. The state in which the ground is held by the body can be corrected to an appropriate state, and the safe ground holding state can be maintained for a long time.
【００１２】また、本発明に係るグラウンドアンカー地
上構造は必要に応じて、前記押圧力分散体が、円錐軸方
向に複数分割されてなると共に、分割された各分割体の
組合わせ数変更により円錐軸方向寸法を調整可能とされ
てなるものである。このように本発明においては、押圧
力分散体を円錐軸方向に複数分割構造とし、各分割体の
組合わせる数を変えて押圧力分散体の大きさを容易に調
整できることにより、地盤の穿孔開口部の大きさに対応
させて押圧力分散体を適切な大きさに調整でき、アンカ
ー受圧部材の地盤に対する押圧力を最適な大きさの押圧
力分散体で穿孔開口部に無理なく伝えられ、地盤保持状
態を確実に維持できる。さらに、押圧力分散体を分割体
毎に持運んで現場に設置することができ、持運びから据
付けに至る作業が容易になり、作業者の負担も低減され
る。In the ground anchor ground structure according to the present invention, if necessary, the pressing force dispersing element is divided into a plurality of pieces in the direction of the cone axis, and the number of the divided pieces is changed by changing the number of combinations. The axial dimension can be adjusted. As described above, in the present invention, the pressing force dispersing element has a plurality of divided structures in the conical axis direction, and the size of the pressing force dispersing element can be easily adjusted by changing the number of combinations of the divided elements, so that the perforation opening of the ground can be adjusted. The pressing force disperser can be adjusted to an appropriate size according to the size of the part, and the pressing force of the anchor pressure receiving member against the ground can be transmitted to the perforation opening with the optimal size of the pressing force disperser, and the ground The holding state can be reliably maintained. Further, the pressing force dispersing element can be carried for each divided body and installed on the site, so that the work from carrying to installation is facilitated, and the burden on the operator is reduced.
【００１３】また、本発明に係るグラウンドアンカー地
上構造は必要に応じて、前記押圧力分散体が、所定の一
又は複数の分割体相互間に、当該分割体相互間の圧力状
態を検知する所定の圧力検知手段、及び分割体同士の間
隔を変化させる所定の間隔調整手段をそれぞれ配設され
てなるものである。このように本発明においては、押圧
力分散体の所定の分割体相互間に圧力検知手段及び間隔
調整手段を配設し、圧力検知手段で検知した分割体相互
間の圧力状態に対応して、間隔調整手段で分割体間隔を
一様に調整し、押圧力分散体の円錐軸方向の寸法を変え
てアンカー受圧部材の地盤からの高さを変化させたり、
分割体相互の間隔を部分的に変化させて一方の他方に対
する傾きを変化させたりすることにより、アンカー受圧
部材据付け時の地盤表面に対する高さ位置及び向きの調
整が適切且つ容易に行え、地盤表面の不陸に対しアンカ
ー受圧部材の設置姿勢を調整して適切に対応させられ、
アンカー受圧部材から地盤へ押圧力を確実に分散させて
伝達できる状態が得られる。さらに、グラウンドアンカ
ー各部の経年変化やアンカー設置箇所周囲の環境変化に
伴って地盤の保持状態が変った場合でも、こうした変化
に合わせて間隔調整手段による間隔調整を行ってアンカ
ー受圧部材及び押圧力分散体での地盤の保持状態を適切
な状態に修正できることとなり、安全な地盤保持状態を
長期にわたり維持できる。In the ground anchor ground structure according to the present invention, if necessary, the pressing force disperser may detect a pressure state between the predetermined one or a plurality of divided bodies between the divided bodies. And a predetermined distance adjusting means for changing the distance between the divided bodies. Thus, in the present invention, the pressure detecting means and the interval adjusting means are disposed between the predetermined divided bodies of the pressing force dispersion, and corresponding to the pressure state between the divided bodies detected by the pressure detecting means, Adjust the division body spacing uniformly by the spacing adjustment means, change the height of the anchor pressure receiving member from the ground by changing the size of the pressing force dispersion in the conical axis direction,
By partially changing the interval between the divided bodies to change the inclination with respect to the other one, the height position and the direction with respect to the ground surface at the time of installation of the anchor pressure receiving member can be appropriately and easily adjusted, and the ground surface can be adjusted. Adjusting the installation position of the anchor pressure receiving member for the unevenness of
A state is obtained in which the pressing force can be reliably dispersed and transmitted from the anchor pressure receiving member to the ground. Furthermore, even if the ground holding condition changes due to the aging of each part of the ground anchor or the environmental change around the anchor installation location, the spacing adjustment means adjusts the spacing according to these changes to disperse the anchor pressure receiving member and the pressing force distribution. The state in which the ground is held by the body can be corrected to an appropriate state, and the safe ground holding state can be maintained for a long time.
【００１４】また、本発明に係るグラウンドアンカー地
上構造は、貫通状態の中心孔を穿設された略台状体で形
成され、地盤の所定の穿孔に挿入・固定されているアン
カー引張部材の地上露出部分を前記中心孔に通した状態
で前記地盤表面に設置され、且つ前記アンカー引張部材
の地上露出部分に一体に固着されるアンカー受圧部材
と、前記アンカー受圧部材と地盤との間における一又は
複数の所定箇所に配設され、当該所定箇所におけるアン
カー受圧部材と地盤の相互間の圧力状態を検知し、取得
した情報を外部の管理手段に送信する所定の圧力検知手
段を備えるものである。このように本発明においては、
アンカー受圧部材と地盤との間に圧力検知手段を配設
し、この圧力検知手段にアンカー受圧部材と地盤の相互
間の圧力状態を検知させて取得情報を外部に送信させ、
この送信情報を受けて外部からアンカー受圧部材及び地
盤における圧力変化を監視して地盤保持状態の変化を確
認できることにより、グラウンドアンカー各部の経年変
化やアンカー設置箇所周囲の環境変化に伴って地盤の保
持状態が変った場合でもこうした変化に対応して十分な
対策を施すことができ、安全な地盤保持状態を長期にわ
たり維持できる。Further, the ground anchor ground structure according to the present invention is formed of a substantially trapezoidal body having a center hole in a penetrating state, and the ground surface of an anchor tension member inserted and fixed in a predetermined hole in the ground. An anchor pressure receiving member installed on the ground surface with the exposed portion passed through the center hole, and integrally fixed to the ground exposed portion of the anchor tension member, one or more of the anchor pressure receiving member and the ground It is provided at a plurality of predetermined locations and includes predetermined pressure detection means for detecting a pressure state between the anchor pressure receiving member and the ground at the predetermined locations and transmitting the acquired information to an external management means. Thus, in the present invention,
A pressure detecting means is disposed between the anchor pressure receiving member and the ground, and the pressure detecting means detects a pressure state between the anchor pressure receiving member and the ground and transmits acquired information to the outside,
By receiving this transmission information and monitoring the pressure change in the anchor pressure receiving member and the ground from the outside, it is possible to confirm the change in the ground holding state, so that the ground holding due to the aging of each part of the ground anchor and the environmental change around the anchor installation location Even when the state changes, sufficient measures can be taken in response to such a change, and a safe ground holding state can be maintained for a long time.
【００１５】また、本発明に係るグラウンドアンカー地
上構造は必要に応じて、前記アンカー受圧部材と地盤と
の間における一又は複数の所定箇所に配設され、アンカ
ー受圧部材及び地盤とのそれぞれの当接部分同士の距離
を変化させる所定の間隔調整手段を備えるものである。
このように本発明においては、アンカー受圧部材と地盤
との間に間隔調整手段を配設し、アンカー受圧部材と地
盤との間隔を一様に調整してアンカー受圧部材の地盤か
らの高さを変化させたり、アンカー受圧部材と地盤の所
定箇所における互いの間隔を変化させてアンカー受圧部
材の地盤に対する傾きを変化させたりすることにより、
アンカー受圧部材据付け時の地盤表面に対する高さ位置
及び向きの調整が適切且つ容易に行え、地盤表面の不陸
に対しアンカー受圧部材の設置姿勢を調整して適切に対
応させられ、アンカー受圧部材から地盤へ押圧力を確実
に分散させて伝達できる状態が得られる。さらに、グラ
ウンドアンカー各部の経年変化やアンカー設置箇所周囲
の環境変化に伴って地盤の保持状態が変った場合でも、
こうした変化に合わせて間隔調整手段による間隔調整を
行ってアンカー受圧部材での地盤の保持状態を適切な状
態に修正できることとなり、安全な地盤保持状態を長期
にわたり維持できる。Further, the ground anchor ground structure according to the present invention is disposed at one or a plurality of predetermined locations between the anchor pressure receiving member and the ground as necessary, and is provided for each of the anchor pressure receiving member and the ground. It is provided with a predetermined interval adjusting means for changing the distance between the contact portions.
As described above, in the present invention, the distance adjusting means is provided between the anchor pressure receiving member and the ground, and the distance between the anchor pressure receiving member and the ground is uniformly adjusted to increase the height of the anchor pressure receiving member from the ground. By changing, by changing the interval between the anchor pressure receiving member and the ground at a predetermined location of the ground to change the inclination of the anchor pressure receiving member with respect to the ground,
Adjustment of the height position and orientation with respect to the ground surface at the time of installation of the anchor pressure receiving member can be performed appropriately and easily, the installation posture of the anchor pressure receiving member is adjusted appropriately to the unevenness of the ground surface, A state in which the pressing force can be reliably dispersed and transmitted to the ground can be obtained. Furthermore, even if the ground holding state changes due to the aging of each part of the ground anchor and the environmental change around the anchor installation location,
By adjusting the interval by the interval adjusting means in accordance with such a change, the holding state of the ground at the anchor pressure receiving member can be corrected to an appropriate state, and the safe ground holding state can be maintained for a long time.
【００１６】[0016]
【発明の実施の形態】以下、本発明の一実施の形態を図
１〜図４に基づいて説明する。図１は本実施の形態に係
るグラウンドアンカー地上構造の正面図、図２は本実施
の形態に係るグラウンドアンカー地上構造におけるアン
カー受圧部材の平面図、図３は本実施の形態に係るグラ
ウンドアンカー地上構造における押圧力分散体の配設途
中状態説明図、図４は本実施の形態に係るグラウンドア
ンカー地上構造における押圧力分散体の斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a front view of a ground anchor ground structure according to the present embodiment, FIG. 2 is a plan view of an anchor pressure receiving member in the ground anchor ground structure according to the present embodiment, and FIG. 3 is a ground anchor ground according to the present embodiment. FIG. 4 is a perspective view of a pressing force dispersing element in the ground anchor ground structure according to the present embodiment.
【００１７】前記各図において本実施形態に係るグラウ
ンドアンカー地上構造は、地盤６０に固定されているア
ンカー引張部材５０の地上露出部分に一体に固着されて
地盤６０表面に固定されるアンカー受圧部材１０と、地
盤６０のアンカー引張部材５０を挿入・固定された穿孔
６１の開口部に嵌め込まれてアンカー受圧部材１０と地
盤６０との間に配設される押圧力分散体２０と、アンカ
ー受圧部材１０と押圧力分散体２０との間における複数
の所定箇所に配設される間隔調整手段３０及び圧力検知
手段４０とを備える構成である。In each of the drawings, the ground anchor ground structure according to the present embodiment includes an anchor pressure receiving member 10 which is integrally fixed to an exposed portion of the ground of an anchor tension member 50 fixed to the ground 60 and is fixed to the surface of the ground 60. A pressing force dispersing member 20 fitted between the anchor pressure receiving member 10 and the ground 60 by being fitted into the opening of the perforation 61 into which the anchor tension member 50 of the ground 60 has been inserted and fixed; And a pressure detecting means 40 disposed at a plurality of predetermined locations between the pressure dispersing member 20 and the pressing force dispersing member 20.
【００１８】前記アンカー受圧部材１０は、貫通状態の
中心孔１１ａを穿設された中空略箱状体のコア部１１
と、このコア部１１を中心に略十字状に連結配置される
四つの中空略箱状体のアーム部１２とを備え、コア部１
１とアーム部１２を一体化した略台状体とされてなる構
成である。このアンカー受圧部材１０は、地盤６０に固
定されているアンカー引張部材５０の地上露出部分をコ
ア部１１の中心孔１１ａに通した状態で地盤６０表面に
設置され、アンカー引張部材５０の地上露出部分に一体
に固着される。The anchor pressure receiving member 10 has a hollow substantially box-shaped core portion 11 having a central hole 11a formed therethrough.
And four hollow substantially box-shaped arms 12 connected and arranged in a substantially cross shape around the core 11.
1 and an arm portion 12 are integrated into a substantially trapezoidal body. The anchor pressure receiving member 10 is installed on the surface of the ground 60 with the ground exposed portion of the anchor tension member 50 fixed to the ground 60 passed through the center hole 11a of the core portion 11, and the ground exposed portion of the anchor tension member 50 is Are fixed together.
【００１９】また、アンカー受圧部材１０の中心孔１１
ａは、アンカー受圧部材１０の底面側に向って拡開状に
形成されており、アンカー引張部材５０を孔内で所定範
囲角度変更可能として、アンカー受圧部材１０のアンカ
ー引張部材５０に対する直角位置から所定範囲の傾きを
許容する構成であり、間隔調整手段３０によるアンカー
受圧部材１０と押圧力分散体２０との間隔及び相互の傾
きの調整をスムーズに行えるようにすると共に、アンカ
ー引張部材５０が地盤６０表面に対する直角方向から傾
いて地盤６０に配設されている場合でも、無理なく中心
孔１１ａに通してアンカー受圧部材１０を設置できる仕
組みとなっている。Further, the center hole 11 of the anchor pressure receiving member 10
a is formed so as to expand toward the bottom surface side of the anchor pressure receiving member 10, and the angle of the anchor tension member 50 can be changed within a predetermined range within the hole, so that the anchor pressure member 10 is at a right angle to the anchor tension member 50. It is configured to allow a predetermined range of inclination, so that the distance between the anchor pressure receiving member 10 and the pressing force dispersing member 20 and the mutual inclination by the distance adjusting means 30 can be smoothly adjusted, and the anchor tension member 50 is fixed to the ground. Even if it is arranged on the ground 60 at an angle from the direction perpendicular to the surface of the anchor 60, the anchor pressure receiving member 10 can be installed through the center hole 11a without difficulty.
【００２０】前記押圧力分散体２０は、アンカー引張部
材５０の地上露出部分を通すために貫通状態の中心孔２
１を穿設された中空の略円錐状体で形成される構成であ
り、地盤６０のアンカー引張部材５０を挿入・固定され
た穿孔６１の開口部に略円錐尖端側を挿入させて嵌め込
まれ、アンカー受圧部材１０と地盤６０との間に配設さ
れる。The pressing force dispersing member 20 has a center hole 2 penetrating therethrough for passing an above-ground exposed portion of the anchor pulling member 50.
1 is formed by a hollow substantially conical body having a hole formed therein, and the anchor tension member 50 of the ground 60 is fitted into the opening of the hole 61 into which the substantially conical point is inserted by inserting and fixing the anchor tension member 50. It is arranged between the anchor pressure receiving member 10 and the ground 60.
【００２１】前記間隔調整手段３０は、略平行な二面間
の間隔を調整可能な公知のアクチュエータであり、前記
二面をアンカー受圧部材１０又は押圧力分散体２０にそ
れぞれ当接させてアンカー受圧部材１０と押圧力分散体
２０との間における複数の所定箇所に配設され、これら
所定箇所におけるアンカー受圧部材１０と押圧力分散体
２０との間隔を変化させる仕組みである。この間隔調整
手段３０のアンカー受圧部材１０側の面には、圧力検知
手段４０が配設される（図４参照）。The distance adjusting means 30 is a known actuator capable of adjusting the distance between two substantially parallel surfaces. The distance adjusting means 30 is brought into contact with the anchor pressure receiving member 10 or the pressing force dispersing member 20, respectively. A mechanism is provided at a plurality of predetermined locations between the member 10 and the pressing force dispersing member 20 to change the distance between the anchor pressure receiving member 10 and the pressing force dispersing member 20 at these predetermined portions. A pressure detecting means 40 is provided on a surface of the gap adjusting means 30 on the anchor pressure receiving member 10 side (see FIG. 4).
【００２２】前記圧力検知手段４０は、接触する二つの
物体間の圧力を検知する公知の圧力センサであり、アン
カー受圧部材１０と押圧力分散体２０との間における複
数の所定箇所に前記間隔調整手段３０の一方の面とアン
カー受圧部材１０の底面間に挟まれた状態で配設され、
これら所定箇所におけるアンカー受圧部材１０と押圧力
分散体２０の相互間の圧力状態を検知し、取得した圧力
に関する情報を外部の管理手段（図示を省略）に送信す
る仕組みである。The pressure detecting means 40 is a known pressure sensor for detecting a pressure between two contacting objects, and the pressure adjusting means 40 is provided at a plurality of predetermined positions between the anchor pressure receiving member 10 and the pressing force dispersing member 20. It is disposed in a state sandwiched between one surface of the means 30 and the bottom surface of the anchor pressure receiving member 10,
It is a mechanism that detects the pressure state between the anchor pressure receiving member 10 and the pressing force dispersing member 20 at these predetermined locations, and transmits information on the acquired pressure to an external management unit (not shown).
【００２３】次に、前記構成に基づくグラウンドアンカ
ー地上構造の構築工程及び地盤保持状態について説明す
る。始めに構築工程については、あらかじめアンカー引
張部材５０が地盤６０に固定された状態で、まず、押圧
力分散体２０を中心孔２１にアンカー引張部材５０の地
上露出部分が通るようにしながらアンカー引張部材５０
の挿入されている地盤６０の穿孔６１における開口部に
挿入する（図３参照）。そして、押圧力分散体２０の上
面側に、間隔調整手段３０と圧力検知手段４０をそれぞ
れ配設する。この後、アンカー受圧部材１０を中心孔１
１ａにアンカー引張部材５０の地上露出部分が通るよう
にしながら地盤６０表面に設置する。Next, the construction process of the ground anchor ground structure based on the above configuration and the ground holding state will be described. First, in the construction step, in the state where the anchor tension member 50 is fixed to the ground 60 in advance, first, the pressing force dispersion member 20 is passed through the center hole 21 so that the exposed portion of the anchor tension member 50 passes through the ground. 50
Is inserted into the opening in the perforation 61 of the ground 60 into which the base material has been inserted (see FIG. 3). Then, the interval adjusting means 30 and the pressure detecting means 40 are provided on the upper surface side of the pressing force dispersion 20. Thereafter, the anchor pressure receiving member 10 is inserted into the center hole 1.
It is installed on the surface of the ground 60 so that the exposed portion of the anchor tension member 50 passes through 1a.
【００２４】アンカー受圧部材１０を設置した後、アン
カー受圧部材１０と地盤６０との接触状態を調べ、地盤
６０の不陸が原因でアンカー受圧部材１０が地盤６０に
適切に当接せず隙間が空いている場合は、いずれかの間
隔調整手段３０の間隔調整によりアンカー受圧部材１０
と押圧力分散体２０との間隔及び相互の傾きを変化さ
せ、アンカー受圧部材１０と地盤６０との接触が適切な
状態となるようにしておく。この調整の後、アンカー引
張部材５０を所定の張力が得られるまで緊張し、この緊
張状態のアンカー引張部材５０とアンカー受圧部材１０
とを一体に固着させれば、構築工程完了となり、アンカ
ー受圧部材１０及び押圧力分散体２０で地盤６０を押圧
保持する状態となる（図１参照）。After the anchor pressure receiving member 10 is installed, the state of contact between the anchor pressure receiving member 10 and the ground 60 is checked, and due to the unevenness of the ground 60, the anchor pressure receiving member 10 does not properly contact the ground 60 and a gap is formed. When the anchor pressure receiving member 10 is free,
The distance between the anchor pressure receiving member 10 and the ground 60 is changed so that the distance between the anchor pressure receiving member 10 and the ground 60 is changed. After this adjustment, the anchor tension member 50 is tensioned until a predetermined tension is obtained, and the tensioned anchor tension member 50 and the anchor pressure receiving member 10 are tensioned.
Are integrally fixed, the construction process is completed, and the ground 60 is pressed and held by the anchor pressure receiving member 10 and the pressing force dispersing member 20 (see FIG. 1).
【００２５】この地盤保持状態では、地盤６０表面でア
ンカー引張部材５０に一体に固定されているアンカー受
圧部材１０において、アンカー引張部材５０の緊張力が
コア部１１を経てアーム部１２にも伝わり、アーム部１
２の下面から地盤６０へ押圧力として加わることで地盤
６０を保持可能となっている。加えて、地盤に対する押
圧力がアンカー受圧部材１０から押圧力分散体２０を通
じて地盤６０の凹んだ穿孔６１開口部にも確実に伝わる
こととなり、アンカー受圧部材１０の載置部分全体にわ
たって均等に押圧力を与えられ、グラウンドアンカーと
しての地盤６０の保持力が大きくなっている。In the ground holding state, in the anchor pressure receiving member 10 which is integrally fixed to the anchor tension member 50 on the surface of the ground 60, the tension of the anchor tension member 50 is transmitted to the arm portion 12 via the core portion 11, and Arm part 1
The ground 60 can be held by applying a pressing force to the ground 60 from the lower surface of the ground 2. In addition, the pressing force against the ground is reliably transmitted from the anchor pressure receiving member 10 to the opening of the recessed perforation 61 of the ground 60 through the pressing force dispersing member 20, and the pressing force is evenly distributed over the entire mounting portion of the anchor pressure receiving member 10. And the holding power of the ground 60 as a ground anchor is increased.
【００２６】さらに、アンカー受圧部材１０と押圧力分
散体２０との間に配設されている複数の圧力検知手段４
０にアンカー受圧部材１０と押圧力分散体２０の相互間
の圧力状態を検知させ、且つ検知された圧力を所定の管
理手段へ送信させることができ、管理手段が送信情報に
基づいてアンカー受圧部材１０と押圧力分散体２０との
間で圧力の著しい変化がないかを監視することで、グラ
ウンドアンカー各部の経年変化や地盤６０の周囲の環境
変化などにより地盤６０の保持力が低下するなど保持状
態が変化する事態を確実に把握できる。そして、この圧
力検知手段４０で検知した変化に対応させて、間隔調整
手段３０でアンカー受圧部材１０と押圧力分散体２０と
の間隔及び傾きを調整し、設置後においてもアンカー受
圧部材１０及び押圧力分散体２０での地盤の保持状態を
変化させることができ、押圧状態の変化に対応して適切
な対策を施すことで地盤６０を安定的に長期間保持可能
となる。Further, a plurality of pressure detecting means 4 provided between the anchor pressure receiving member 10 and the pressing force dispersing member 20 are provided.
0 can detect the pressure state between the anchor pressure receiving member 10 and the pressing force dispersing member 20, and can transmit the detected pressure to predetermined management means, and the management means can control the anchor pressure receiving member based on the transmission information. By monitoring whether there is a remarkable change in pressure between the pressing force dispersing member 10 and the pressing force dispersing member 20, the holding force of the ground 60 is reduced due to the secular change of each part of the ground anchor or the environmental change around the ground 60. The situation where the state changes can be surely grasped. Then, in accordance with the change detected by the pressure detecting means 40, the distance and inclination between the anchor pressure receiving member 10 and the pressing force dispersing member 20 are adjusted by the distance adjusting means 30, and even after installation, the anchor pressure receiving member 10 and the pressing force The holding state of the ground in the pressure dispersing body 20 can be changed, and the ground 60 can be stably held for a long period of time by taking appropriate measures in response to the change in the pressing state.
【００２７】このように、本実施の形態に係るグラウン
ドアンカー地上構造においては、アンカー受圧部材１０
と地盤６０との間に略円錐状体の押圧力分散体２０を配
設し、アンカー受圧部材１０の地盤６０に対する押圧力
を押圧力分散体２０で凹んだ状態となっている穿孔６１
の開口部にも伝えることから、アンカー引張部材５０の
張力をアンカー受圧部材１０と押圧力分散体２０でスム
ーズに地盤６０に伝達して地盤６０を確実に押圧できる
こととなり、一つのアンカー受圧部材１０における地盤
保持力を大きく向上させて安全性と信頼性が高められる
と共に、地盤保持力の増大に伴ってアンカー設置数削減
も図れるなど、アンカー工事全体で省力化とコスト削減
が可能となる。As described above, in the ground anchor ground structure according to this embodiment, the anchor pressure receiving member 10
A substantially conical pressing force dispersing member 20 is disposed between the ground and the ground 60, and the pressing force of the anchor pressure receiving member 10 against the ground 60 is perforated by the pressing force dispersing member 20.
Of the anchor tension member 50, the anchor pressure receiving member 10 and the pressing force dispersing member 20 can smoothly transmit the tension to the ground 60, and the ground 60 can be reliably pressed. As a result, the safety and reliability can be improved by greatly improving the ground holding force, and the number of anchors can be reduced with the increase in the ground holding force, so that labor saving and cost reduction can be achieved in the entire anchor work.
【００２８】なお、前記実施の形態に係るグラウンドア
ンカー地上構造において、アンカー受圧部材１０及び押
圧力分散体２０の内部は中空のままの構成としている
が、これに限らず、地盤表面への設置後、内部の中空部
分にコンクリート等の充填材を充填し、強度及び重量を
増加させてアンカー受圧部材１０及び押圧力分散体２０
としての地盤保持力の向上を図る構成とすることもでき
る。さらに、中空の箱状体とせず、コンクリート製等の
中実の一体成型体として用いる構成とすることもでき
る。In the ground anchor ground structure according to the above-described embodiment, the interior of the anchor pressure receiving member 10 and the pressing force dispersing member 20 is configured to be hollow. However, the present invention is not limited to this. Filling the hollow portion of the interior with a filler such as concrete to increase the strength and the weight, thereby increasing the anchor pressure receiving member 10 and the pressing force dispersion 20
It is also possible to adopt a configuration for improving the ground holding force as described above. Furthermore, it is also possible to adopt a configuration in which a solid box formed of concrete or the like is used instead of a hollow box.
【００２９】また、前記実施の形態に係るグラウンドア
ンカー地上構造において、押圧力分散体２０は一体の略
円錐状体として形成される構成としているが、これに限
らず、押圧力分散体２０を円錐軸方向への複数分割構造
とし、分割された各分割体の組合わせ数変更により押圧
力分散体２０の円錐軸方向寸法を調整可能とする構成と
することもでき、地盤６０の穿孔６１開口部の大きさに
対応させて押圧力分散体２０を適切な大きさに調整で
き、アンカー受圧部材１０の地盤６０に対する押圧力を
最適な大きさの押圧力分散体２０で穿孔６１開口部に無
理なく伝えられ、地盤保持状態を確実に維持できること
となる。加えて、分割構造とした押圧力分散体２０の所
定の分割体相互間に、分割体相互間の圧力状態を検知す
る圧力検知手段、及び分割体同士の間隔を変化させる間
隔調整手段をそれぞれ配設する構成とすることもでき、
圧力検知手段で検知した分割体相互間の圧力状態に対応
して間隔調整手段により分割体間隔を調整することで、
アンカー受圧部材１０の地盤６０表面に対する高さ位置
及び向きの調整が適切且つ容易に行え、地盤６０表面の
不陸、並びに、経年変化に対する調整を行って地盤６０
の保持状態を適切な状態に修正でき、安全な地盤保持状
態を長期にわたり維持できる。Further, in the ground anchor ground structure according to the above-described embodiment, the pressing force dispersing member 20 is formed as an integral substantially conical member. However, the present invention is not limited to this. It is also possible to adopt a configuration in which a plurality of divided structures in the axial direction are provided, and the conical axial size of the pressing force dispersing member 20 can be adjusted by changing the number of combinations of each divided body. The pressing force dispersing body 20 can be adjusted to an appropriate size in accordance with the size of the anchoring member. This will ensure that the ground holding state can be maintained. In addition, a pressure detecting means for detecting a pressure state between the divided bodies and an interval adjusting means for changing an interval between the divided bodies are provided between predetermined divided bodies of the pressing force dispersion body 20 having the divided structure. It can be configured to be installed,
By adjusting the divided body interval by the interval adjusting means in accordance with the pressure state between the divided bodies detected by the pressure detecting means,
The height position and direction of the anchor pressure receiving member 10 with respect to the surface of the ground 60 can be appropriately and easily adjusted, and the ground 60 can be adjusted for unevenness of the surface of the ground 60 and aging.
Can be corrected to an appropriate state, and a safe ground holding state can be maintained for a long time.
【００３０】また、前記実施の形態に係るグラウンドア
ンカー地上構造において、地盤６０の穿孔６１開口部に
押圧力分散体２０を嵌め込んで配設する構成としている
が、これに限らず、固い地盤等で穿孔６１の開口部が十
分小さい場合には、図５に示すように、押圧力分散体２
０を用いず、従来同様アンカー受圧部材１０を地盤表面
にそのまま載置すると共に、アンカー受圧部材１０と地
盤６０表面との間に、間隔調整手段３０及び／又は圧力
検知手段４０を前記実施形態におけるアンカー受圧部材
１０と押圧力分散体２０間への配設と同様に配設する構
成とすることもでき、アンカー引張部材５０とアンカー
受圧部材１０との固着前には、地盤６０の不陸が原因で
アンカー受圧部材１０が地盤６０に適切に当接せず隙間
が空いている場合でも、いずれかの間隔調整手段３０の
間隔調整によりアンカー受圧部材１０と地盤６０との間
隔及び地盤６０に対するアンカー受圧部材１０の傾きを
変化させられ、アンカー受圧部材１０と地盤６０とを適
切な接触状態に調整できる。さらに、アンカー引張部材
５０とアンカー受圧部材１０との固着後は、圧力検知手
段４０にアンカー受圧部材１０と地盤６０の相互間の圧
力状態を検知させ、且つ検知された圧力を所定の管理手
段へ送信させることができ、管理手段が送信情報に基づ
いて圧力の著しい変化がないかを監視することで、前記
実施形態同様に地盤６０の保持状態が変化する事態を確
実に把握できる。そして、この圧力検知手段４０で検知
した変化に対応させて、間隔調整手段３０でアンカー受
圧部材１０と地盤６０との間隔及び地盤６０に対するア
ンカー受圧部材１０の傾きを調整し、設置後においても
アンカー受圧部材１０での地盤の保持状態を変化させる
ことができ、押圧状態の変化に対応して適切な対策を施
すことで地盤６０を安定的に長期間保持可能となる。Further, in the ground anchor ground structure according to the embodiment, the pressing force dispersing member 20 is arranged so as to be fitted in the opening of the perforation 61 of the ground 60. However, the present invention is not limited to this. When the opening of the perforation 61 is sufficiently small, as shown in FIG.
0, the anchor pressure receiving member 10 is placed on the ground surface as it is conventionally, and the gap adjusting means 30 and / or the pressure detecting means 40 are provided between the anchor pressure receiving member 10 and the surface of the ground 60 in the above-described embodiment. It is also possible to adopt a configuration similar to the arrangement between the anchor pressure receiving member 10 and the pressing force dispersing member 20. Before the anchor tension member 50 and the anchor pressure receiving member 10 are fixed to each other, unevenness of the ground 60 may occur. Even if the anchor pressure receiving member 10 does not properly contact the ground 60 due to the cause and there is a gap, the gap between the anchor pressure receiving member 10 and the ground 60 and the anchor to the ground 60 are adjusted by adjusting the interval of any of the interval adjusting means 30. The inclination of the pressure receiving member 10 can be changed, and the anchor pressure receiving member 10 and the ground 60 can be adjusted to an appropriate contact state. Further, after the anchor tension member 50 and the anchor pressure receiving member 10 are fixed, the pressure detecting means 40 detects the pressure state between the anchor pressure receiving member 10 and the ground 60, and sends the detected pressure to a predetermined management means. The transmission can be performed, and the management unit monitors whether there is a remarkable change in the pressure based on the transmission information, so that the situation in which the holding state of the ground 60 changes as in the above-described embodiment can be reliably grasped. The distance between the anchor pressure receiving member 10 and the ground 60 and the inclination of the anchor pressure receiving member 10 with respect to the ground 60 are adjusted by the gap adjusting means 30 in accordance with the change detected by the pressure detecting The state of holding the ground by the pressure receiving member 10 can be changed, and by taking appropriate measures in response to the change in the pressed state, the ground 60 can be stably held for a long period of time.
【００３１】また、前記実施の形態に係るグラウンドア
ンカー地上構造において、アンカー受圧部材１０は平面
形状が四角形の略箱状体であるコア部１１に四つのアー
ム部１２を固定して全体で十字形状の略台状体をなす構
成としているが、これに限らず、コア部１１を平面形状
が四角形以外の多角形となる略箱状体とし、且つコア部
１１の側面の数に対応するアーム部１２をそれぞれコア
部１１に固定し、コア部１１を中心とする十字形状以外
の所定対称形状にする構成とすることもできる。加え
て、アンカー受圧部材１０をコア部１１とアーム部１２
との組合わせとせず、図６に示すように、方形や円形、
三角形等の単純な平面形状を有する略台状の構造体とす
ることもできる。In the ground anchor ground structure according to the above-described embodiment, the anchor pressure receiving member 10 has four arms 12 fixed to the core 11 which is a substantially box-like body having a square planar shape, and has a cross shape as a whole. However, the present invention is not limited to this. The core portion 11 may be a substantially box-shaped body having a polygonal shape other than a quadrangle, and the arm portions may correspond to the number of side surfaces of the core portion 11. Each of the fixing members 12 may be fixed to the core portion 11 so as to have a predetermined symmetric shape other than the cross shape centering on the core portion 11. In addition, the anchor pressure receiving member 10 is connected to the core portion 11 and the arm portion 12.
, As shown in FIG. 6,
It may be a substantially trapezoidal structure having a simple planar shape such as a triangle.
【００３２】さらに、前記実施の形態に係るグラウンド
アンカー地上構造においては、アンカー受圧部材１０の
アーム部１２として略箱状体を用いる構成としている
が、これに限らず、アーム部１２としてＴ形鋼や山形
鋼、Ｈ形鋼など地面と直角をなす略板状部分及びこの略
板状部材と直交する別の略板状部分とを有する部材を用
いる構成とすることもでき、より簡略な構造としてコス
トダウンが図れる。Further, in the ground anchor ground structure according to the embodiment, a substantially box-shaped body is used as the arm portion 12 of the anchor pressure receiving member 10, but the present invention is not limited to this. Or an angle iron, an H-shaped steel, and a member having a substantially plate-shaped portion perpendicular to the ground and another substantially plate-shaped portion orthogonal to the substantially plate-shaped member. Cost reduction can be achieved.
【００３３】[0033]
【発明の効果】以上のように本発明によれば、アンカー
受圧部材と地盤との間に略円錐状体の押圧力分散体を配
設し、アンカー受圧部材の地盤に対する押圧力を押圧力
分散体で穿孔の開口部分にも伝えることから、アンカー
引張部材の張力をアンカー受圧部材と押圧力分散体でス
ムーズに地盤に伝達して地盤を確実に押圧できることと
なり、一つのアンカー受圧部材における地盤保持力を大
きく向上させて安全性と信頼性が高まると共に、地盤保
持力の増大に伴ってアンカー工事対象となる地盤をより
効率よく押圧でき、アンカー設置数削減も図れるなどア
ンカー工事全体で省力化とコスト削減が可能となるとい
う効果を奏する。As described above, according to the present invention, the substantially conical pressing force dispersing member is disposed between the anchor pressure receiving member and the ground, and the pressing force of the anchor pressing member against the ground is distributed. Since the body also transmits to the opening of the perforation, the tension of the anchor tension member can be smoothly transmitted to the ground by the anchor pressure receiving member and the pressing force dispersing member, and the ground can be reliably pressed, and the ground holding by one anchor pressure receiving member In addition to improving the safety and reliability by greatly increasing the force, the ground to be anchored can be pressed more efficiently as the ground holding force increases, and the number of anchor installations can be reduced. This has the effect of enabling cost reduction.
【００３４】また、本発明によれば、アンカー受圧部材
と押圧力分散体との間に圧力検知手段を配設し、この圧
力検知手段にアンカー受圧部材と押圧力分散体の相互間
の圧力状態を検知させて取得情報を外部に送信させ、こ
の送信情報を受けて外部からアンカー受圧部材及び押圧
力分散体における圧力変化を監視して地盤保持状態の変
化を確認できることにより、グラウンドアンカー各部の
経年変化やアンカー設置箇所周囲の環境変化に伴って地
盤の保持状態が変った場合でもこうした変化に対応して
十分な対策を施すことができ、安全な地盤保持状態を長
期にわたり維持できるという効果を有する。Further, according to the present invention, pressure detecting means is provided between the anchor pressure receiving member and the pressing force dispersing member, and the pressure detecting means includes a pressure state between the anchor pressure receiving member and the pressing force dispersing member. , The acquired information is transmitted to the outside, and by receiving this transmitted information, the pressure change in the anchor pressure receiving member and the pressing force dispersing member can be monitored from the outside to confirm the change in the ground holding state, and the aging of each part of the ground anchor can be confirmed. Even if the ground holding condition changes due to changes or environmental changes around the anchor installation location, sufficient countermeasures can be taken in response to such changes, and the effect is that a safe ground holding state can be maintained for a long time .
【００３５】また、本発明によれば、アンカー受圧部材
と押圧力分散体との間に間隔調整手段を配設し、アンカ
ー受圧部材と押圧力分散体との間隔を一様に調整してア
ンカー受圧部材の地盤からの高さを変化させたり、アン
カー受圧部材と押圧力分散体の所定箇所における互いの
間隔を変化させて一方の他方に対する傾きを変化させた
りすることにより、アンカー受圧部材据付け時の地盤表
面に対する高さ位置及び向きの調整が適切且つ容易に行
え、地盤表面の不陸に対しアンカー受圧部材の設置姿勢
を調整して適切に対応させられ、アンカー受圧部材から
地盤へ押圧力を確実に分散させて伝達できる状態が得ら
れるという効果を有する。さらに、グラウンドアンカー
各部の経年変化やアンカー設置箇所周囲の環境変化に伴
って地盤の保持状態が変った場合でも、こうした変化に
合わせて間隔調整手段による間隔調整を行ってアンカー
受圧部材及び押圧力分散体での地盤の保持状態を適切な
状態に修正できることとなり、安全な地盤保持状態を長
期にわたり維持できるという効果を有する。Further, according to the present invention, the distance adjusting means is provided between the anchor pressure receiving member and the pressing force dispersing member, and the distance between the anchor pressure receiving member and the pressing force dispersing member is uniformly adjusted to provide the anchor. By changing the height of the pressure receiving member from the ground, or by changing the interval between the anchor pressure receiving member and the pressing force dispersing body at a predetermined position to change the inclination with respect to one of the other, when installing the anchor pressure receiving member The height and direction of the ground surface can be adjusted appropriately and easily with respect to the ground surface, and the installation posture of the anchor pressure receiving member can be adjusted appropriately for irregularities on the ground surface, and the pressing force from the anchor pressure receiving member to the ground can be adjusted. This has the effect that a state in which the data can be transmitted while being reliably dispersed is obtained. Furthermore, even if the ground holding condition changes due to the aging of each part of the ground anchor or the environmental change around the anchor installation location, the spacing adjustment means adjusts the spacing according to these changes to disperse the anchor pressure receiving member and the pressing force distribution. The state in which the ground is held by the body can be corrected to an appropriate state, and there is an effect that the safe ground holding state can be maintained for a long time.
【００３６】また、本発明によれば、押圧力分散体を円
錐軸方向に複数分割構造とし、各分割体の組合わせる数
を変えて押圧力分散体の大きさを容易に調整できること
により、地盤の穿孔開口部の大きさに対応させて押圧力
分散体を適切な大きさに調整でき、アンカー受圧部材の
地盤に対する押圧力を最適な大きさの押圧力分散体で穿
孔開口部に無理なく伝えられ、地盤保持状態を確実に維
持できるという効果を有する。さらに、押圧力分散体を
分割体毎に持運んで現場に設置することができ、持運び
から据付けに至る作業が容易になり、作業者の負担も低
減されるという効果を有する。Further, according to the present invention, the pressing force dispersing element has a plurality of divided structures in the conical axis direction, and the size of the pressing force dispersing element can be easily adjusted by changing the number of combinations of the divided elements. The pressure distribution can be adjusted to an appropriate size according to the size of the perforation opening, and the pressure of the anchor pressure receiving member against the ground can be easily transmitted to the perforation opening with the optimal size of the pressure distribution. This has the effect that the ground holding state can be reliably maintained. Further, the pressing force dispersing element can be carried for each divided body and installed on the site, so that the work from carrying to installation is facilitated, and the burden on the operator is reduced.
【００３７】また、本発明によれば、押圧力分散体の所
定の分割体相互間に圧力検知手段及び間隔調整手段を配
設し、圧力検知手段で検知した分割体相互間の圧力状態
に対応して、間隔調整手段で分割体間隔を一様に調整
し、押圧力分散体の円錐軸方向の寸法を変えてアンカー
受圧部材の地盤からの高さを変化させたり、分割体相互
の間隔を部分的に変化させて一方の他方に対する傾きを
変化させたりすることにより、アンカー受圧部材据付け
時の地盤表面に対する高さ位置及び向きの調整が適切且
つ容易に行え、地盤表面の不陸に対しアンカー受圧部材
の設置姿勢を調整して適切に対応させられ、アンカー受
圧部材から地盤へ押圧力を確実に分散させて伝達できる
状態が得られるという効果を有する。さらに、グラウン
ドアンカー各部の経年変化やアンカー設置箇所周囲の環
境変化に伴って地盤の保持状態が変った場合でも、こう
した変化に合わせて間隔調整手段による間隔調整を行っ
てアンカー受圧部材及び押圧力分散体での地盤の保持状
態を適切な状態に修正できることとなり、安全な地盤保
持状態を長期にわたり維持できるという効果を有する。Further, according to the present invention, the pressure detecting means and the interval adjusting means are arranged between the predetermined divided bodies of the pressing force dispersing element, and correspond to the pressure state between the divided bodies detected by the pressure detecting means. Then, the distance between the divided bodies is uniformly adjusted by the distance adjusting means, and the height of the anchor pressure receiving member from the ground is changed by changing the size of the pressing force dispersing body in the conical axis direction, or the distance between the divided bodies is changed. By partially changing the inclination with respect to the other, the height position and orientation with respect to the ground surface at the time of installation of the anchor pressure receiving member can be appropriately and easily adjusted, and the anchor can be fixed against unevenness of the ground surface. There is an effect that the installation posture of the pressure receiving member is adjusted to appropriately cope with it, and a state is obtained in which the pressing force from the anchor pressure receiving member can be reliably dispersed and transmitted to the ground. Furthermore, even if the ground holding condition changes due to the aging of each part of the ground anchor or the environmental change around the anchor installation location, the spacing adjustment means adjusts the spacing according to these changes to disperse the anchor pressure receiving member and the pressing force distribution. The state in which the ground is held by the body can be corrected to an appropriate state, and there is an effect that the safe ground holding state can be maintained for a long time.
【００３８】また、本発明によれば、アンカー受圧部材
と地盤との間に圧力検知手段を配設し、この圧力検知手
段にアンカー受圧部材と地盤の相互間の圧力状態を検知
させて取得情報を外部に送信させ、この送信情報を受け
て外部からアンカー受圧部材及び地盤における圧力変化
を監視して地盤保持状態の変化を確認できることによ
り、グラウンドアンカー各部の経年変化やアンカー設置
箇所周囲の環境変化に伴って地盤の保持状態が変った場
合でもこうした変化に対応して十分な対策を施すことが
でき、安全な地盤保持状態を長期にわたり維持できると
いう効果を有する。According to the present invention, pressure detecting means is provided between the anchor pressure receiving member and the ground, and the pressure detecting means detects the pressure state between the anchor pressure receiving member and the ground to obtain the acquired information. Receiving the transmitted information, it is possible to monitor changes in the ground holding state by monitoring pressure changes in the anchor pressure receiving member and the ground from the outside, so that the secular change of each part of the ground anchor and environmental changes around the anchor installation location Accordingly, even when the ground holding state changes, sufficient countermeasures can be taken in response to such changes, and there is an effect that a safe ground holding state can be maintained for a long time.
【００３９】また、本発明によれば、アンカー受圧部材
と地盤との間に間隔調整手段を配設し、アンカー受圧部
材と地盤との間隔を一様に調整してアンカー受圧部材の
地盤からの高さを変化させたり、アンカー受圧部材と地
盤の所定箇所における互いの間隔を変化させてアンカー
受圧部材の地盤に対する傾きを変化させたりすることに
より、アンカー受圧部材据付け時の地盤表面に対する高
さ位置及び向きの調整が適切且つ容易に行え、地盤表面
の不陸に対しアンカー受圧部材の設置姿勢を調整して適
切に対応させられ、アンカー受圧部材から地盤へ押圧力
を確実に分散させて伝達できる状態が得られるという効
果を有する。さらに、グラウンドアンカー各部の経年変
化やアンカー設置箇所周囲の環境変化に伴って地盤の保
持状態が変った場合でも、こうした変化に合わせて間隔
調整手段による間隔調整を行ってアンカー受圧部材での
地盤の保持状態を適切な状態に修正できることとなり、
安全な地盤保持状態を長期にわたり維持できるという効
果を有する。Further, according to the present invention, the distance adjusting means is provided between the anchor pressure receiving member and the ground, and the distance between the anchor pressure receiving member and the ground is uniformly adjusted so that the distance between the anchor pressure receiving member and the ground increases. By changing the height or changing the inclination of the anchor pressure receiving member with respect to the ground by changing the distance between the anchor pressure receiving member and the ground at a predetermined location, the height position with respect to the ground surface at the time of anchor pressure receiving member installation And the direction can be adjusted appropriately and easily, and the installation posture of the anchor pressure receiving member can be adjusted appropriately for unevenness of the ground surface, and the pressing force can be reliably dispersed and transmitted from the anchor pressure receiving member to the ground. This has the effect that a state can be obtained. Furthermore, even if the ground holding condition changes due to the aging of each part of the ground anchor or the environmental change around the anchor installation location, the gap adjustment means adjusts the gap in accordance with these changes, and the ground is fixed by the anchor pressure receiving member. It will be possible to correct the holding state to an appropriate state,
This has an effect that a safe ground holding state can be maintained for a long time.
【図１】本発明の一実施の形態に係るグラウンドアンカ
ー地上構造の正面図である。FIG. 1 is a front view of a ground anchor ground structure according to an embodiment of the present invention.
【図２】本発明の一実施の形態に係るグラウンドアンカ
ー地上構造におけるアンカー受圧部材の平面図である。FIG. 2 is a plan view of an anchor pressure receiving member in the ground anchor ground structure according to one embodiment of the present invention.
【図３】本発明の一実施の形態に係るグラウンドアンカ
ー地上構造における押圧力分散体の配設途中状態説明図
である。FIG. 3 is an explanatory diagram showing a state in which a pressing force dispersing element is being arranged in the ground anchor ground structure according to the embodiment of the present invention.
【図４】本発明の一実施の形態に係るグラウンドアンカ
ー地上構造における押圧力分散体の斜視図である。FIG. 4 is a perspective view of a pressing force dispersion body in the ground anchor ground structure according to the embodiment of the present invention.
【図５】本発明の他の実施形態に係るグラウンドアンカ
ー地上構造の正面図である。FIG. 5 is a front view of a ground anchor ground structure according to another embodiment of the present invention.
【図６】本発明の別の実施形態に係るグラウンドアンカ
ー地上構造の斜視図である。FIG. 6 is a perspective view of a ground anchor ground structure according to another embodiment of the present invention.
１０ アンカー受圧部材 １１ コア部 １１ａ 中心孔 １２ アーム部 ２０ 押圧力分散体 ２１ 中心孔 ３０ 間隔調整手段 ４０ 圧力検知手段 ５０ アンカー引張部材 ６０ 地盤 ６１ 穿孔 DESCRIPTION OF SYMBOLS 10 Anchor pressure receiving member 11 Core part 11a Center hole 12 Arm part 20 Pressing force dispersing element 21 Center hole 30 Interval adjustment means 40 Pressure detection means 50 Anchor tension member 60 Ground 61 Perforation
Claims (7)
で形成され、地盤の所定の穿孔に挿入・固定されている
アンカー引張部材の地上露出部分を前記中心孔に通した
状態で前記地盤表面に設置され、且つ前記アンカー引張
部材の地上露出部分に一体に固着されるアンカー受圧部
材と、 貫通状態の中心孔を穿設された略円錐状体で形成され、
前記アンカー引張部材の地上露出部分を前記略円錐状体
の中心孔に通した状態で地盤における前記穿孔の開口部
分に略円錐状体の尖端側を地盤側に向けて嵌め込まれ、
前記アンカー受圧部材と地盤との間に配設される押圧力
分散体とを備えることを特徴とするグラウンドアンカー
地上構造。1. A state in which a ground-exposed portion of an anchor tension member, which is formed of a substantially trapezoidal body having a center hole in a penetrating state and is inserted and fixed in a predetermined hole in the ground, passes through the center hole. An anchor pressure receiving member that is installed on the ground surface and is integrally fixed to the ground exposed portion of the anchor tension member, and is formed of a substantially conical body having a through-hole center hole,
In a state where the ground exposed portion of the anchor tension member is passed through the center hole of the substantially conical body, the tip end side of the substantially conical body is fitted to the opening side of the perforation in the ground with the tip side facing the ground side,
A ground anchor ground structure comprising: a pressing force disperser disposed between the anchor pressure receiving member and the ground.
ー地上構造において、 前記アンカー受圧部材と押圧力分散体との間における一
又は複数の所定箇所に配設され、当該所定箇所における
アンカー受圧部材と押圧力分散体の相互間の圧力状態を
検知し、取得した情報を外部の管理手段に送信する所定
の圧力検知手段を備えることを特徴とするグラウンドア
ンカー地上構造。2. The ground anchor ground structure according to claim 1, wherein the ground anchor is provided at one or a plurality of predetermined locations between the anchor pressure receiving member and the pressing force dispersing member, and the anchor pressure receiving member at the predetermined location is provided. A ground anchor ground structure comprising predetermined pressure detecting means for detecting a pressure state between the pressing force dispersing elements and transmitting the acquired information to an external management means.
アンカー地上構造において、 前記アンカー受圧部材と押圧力分散体との間における一
又は複数の所定箇所に配設され、当該所定箇所における
アンカー受圧部材と押圧力分散体との間隔を変化させる
所定の間隔調整手段を備えることを特徴とするグラウン
ドアンカー地上構造。3. The ground anchor ground structure according to claim 1, wherein the ground anchor structure is disposed at one or a plurality of predetermined locations between the anchor pressure receiving member and the pressing force dispersing member, and receives the anchor pressure at the predetermined location. A ground anchor ground structure comprising a predetermined distance adjusting means for changing a distance between a member and a pressing force dispersing element.
のグラウンドアンカー地上構造において、 前記押圧力分散体が、円錐軸方向に複数分割されてなる
と共に、分割された各分割体の組合わせ数変更により円
錐軸方向寸法を調整可能とされてなることを特徴とする
グラウンドアンカー地上構造。4. The ground anchor ground structure according to claim 1, wherein the pressing force dispersion member is divided into a plurality of pieces in a conical axis direction, and a combination of the divided pieces is combined. A ground anchor ground structure characterized in that the conical axial dimension can be adjusted by changing the number.
ー地上構造において、 前記押圧力分散体が、所定の一又は複数の分割体相互間
に、当該分割体相互間の圧力状態を検知する所定の圧力
検知手段、及び分割体同士の間隔を変化させる所定の間
隔調整手段をそれぞれ配設されてなることを特徴とする
グラウンドアンカー地上構造。5. The ground anchor ground structure according to claim 4, wherein the pressing force dispersing member detects a pressure state between the predetermined one or a plurality of divided members. A ground anchor ground structure comprising: a pressure detecting means; and a predetermined distance adjusting means for changing a distance between the divided bodies.
で形成され、地盤の所定の穿孔に挿入・固定されている
アンカー引張部材の地上露出部分を前記中心孔に通した
状態で前記地盤表面に設置され、且つ前記アンカー引張
部材の地上露出部分に一体に固着されるアンカー受圧部
材と、 前記アンカー受圧部材と地盤との間における一又は複数
の所定箇所に配設され、当該所定箇所におけるアンカー
受圧部材と地盤の相互間の圧力状態を検知し、取得した
情報を外部の管理手段に送信する所定の圧力検知手段を
備えることを特徴とするグラウンドアンカー地上構造。6. A state in which a ground-exposed portion of an anchor tension member, which is formed of a substantially trapezoidal body having a center hole in a penetrating state and is inserted and fixed in a predetermined hole in the ground, passes through the center hole. An anchor pressure receiving member that is installed on the ground surface and is integrally fixed to a ground exposed portion of the anchor tension member, and is disposed at one or a plurality of predetermined locations between the anchor pressure receiving member and the ground. A ground anchor ground structure comprising a predetermined pressure detecting means for detecting a pressure state between an anchor pressure receiving member and a ground at a predetermined location and transmitting acquired information to an external management means.
ー地上構造において、 前記アンカー受圧部材と地盤との間における一又は複数
の所定箇所に配設され、アンカー受圧部材及び地盤との
それぞれの当接部分同士の距離を変化させる所定の間隔
調整手段を備えることを特徴とするグラウンドアンカー
地上構造。7. The ground anchor ground structure according to claim 6, wherein the ground anchor is disposed at one or a plurality of predetermined locations between the anchor pressure receiving member and the ground, and abuts on the anchor pressure receiving member and the ground, respectively. A ground anchor ground structure comprising a predetermined gap adjusting means for changing a distance between portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000253616A JP3416935B2 (en) | 2000-08-24 | 2000-08-24 | Ground anchor Ground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000253616A JP3416935B2 (en) | 2000-08-24 | 2000-08-24 | Ground anchor Ground structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002061181A true JP2002061181A (en) | 2002-02-28 |
| JP3416935B2 JP3416935B2 (en) | 2003-06-16 |
Family
ID=18742680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000253616A Expired - Fee Related JP3416935B2 (en) | 2000-08-24 | 2000-08-24 | Ground anchor Ground structure |
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| Country | Link |
|---|---|
| JP (1) | JP3416935B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101039683B1 (en) | 2010-12-29 | 2011-06-09 | 주식회사 비엠테크 | Cave-in cone, anchor assembly using cave-in cone and method to reinforce slope using anchor assembly |
| CN102587369A (en) * | 2012-03-15 | 2012-07-18 | 中国石油集团西部钻探工程有限公司 | Helical blade type ground anchor |
| JP2014515065A (en) * | 2011-04-12 | 2014-06-26 | グリップル・リミテッド | Ground stabilization device |
| KR20150102569A (en) * | 2014-02-28 | 2015-09-07 | 고려개발 주식회사 | The noise barrier foundation and its construction method |
| CN114002060A (en) * | 2021-09-27 | 2022-02-01 | 西南交通大学 | Performance test system and method of reinforced geotechnical structure under multi-field coupling effect |
-
2000
- 2000-08-24 JP JP2000253616A patent/JP3416935B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101039683B1 (en) | 2010-12-29 | 2011-06-09 | 주식회사 비엠테크 | Cave-in cone, anchor assembly using cave-in cone and method to reinforce slope using anchor assembly |
| JP2014515065A (en) * | 2011-04-12 | 2014-06-26 | グリップル・リミテッド | Ground stabilization device |
| JP2017048678A (en) * | 2011-04-12 | 2017-03-09 | グリップル・リミテッドＧｒｉｐｐｌｅ Ｌｉｍｉｔｅｄ | Ground surface stabilizer |
| CN102587369A (en) * | 2012-03-15 | 2012-07-18 | 中国石油集团西部钻探工程有限公司 | Helical blade type ground anchor |
| KR20150102569A (en) * | 2014-02-28 | 2015-09-07 | 고려개발 주식회사 | The noise barrier foundation and its construction method |
| KR101581938B1 (en) | 2014-02-28 | 2015-12-31 | 고려개발 주식회사 | The noise barrier foundation and its construction method |
| CN114002060A (en) * | 2021-09-27 | 2022-02-01 | 西南交通大学 | Performance test system and method of reinforced geotechnical structure under multi-field coupling effect |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3416935B2 (en) | 2003-06-16 |
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