JP2002054153A - Earth structure sliding detection reinforced pile - Google Patents
Earth structure sliding detection reinforced pileInfo
- Publication number
- JP2002054153A JP2002054153A JP2000240129A JP2000240129A JP2002054153A JP 2002054153 A JP2002054153 A JP 2002054153A JP 2000240129 A JP2000240129 A JP 2000240129A JP 2000240129 A JP2000240129 A JP 2000240129A JP 2002054153 A JP2002054153 A JP 2002054153A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- earth structure
- optical fiber
- main body
- slip detection
- 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
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光ファイバーセン
サーシステムに用いられる、特に、地山や盛土などの土
構造物用すべり検知補強杭に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slip detection reinforcing pile for use in an optical fiber sensor system, particularly for a soil structure such as a ground or an embankment.
【０００２】[0002]
【従来の技術】従来、地山や盛土などの土構造物の変状
を検知するセンサーとしては、 （１）長尺部材に取り付けられた歪みゲージや地滑り計
等のセンサーがあり、、これらはポイントとポイントを
計測するものである。2. Description of the Related Art Conventionally, as sensors for detecting deformation of soil structures such as ground and embankment, there are (1) sensors such as strain gauges and landslide meters attached to long members. It measures points and points.
【０００３】（２）また、現在、光ファイバーセンサー
は、コンクリート部材の歪みや盛土の表面での変形計測
手法として用いられている。(2) At present, an optical fiber sensor is used as a technique for measuring distortion of a concrete member or deformation on the surface of an embankment.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記し
た従来の技術（１）のポイントとポイントの計測では、
各地点で計測点が独立しており、数１０ｋｍを連続的に
計測することはできなかった。However, in the above-mentioned conventional technique (1), points and points are measured by the following method.
Measurement points were independent at each point, and it was not possible to measure several tens of kilometers continuously.
【０００５】また、上記した従来の技術（２）の光ファ
イバーセンサーは、コンクリート部材の歪みや盛土等の
表面での変状計測手法として用いられているが、地中内
の詳細な変状を計測するためには利用されていないのが
現状である。The optical fiber sensor of the prior art (2) is used as a method for measuring distortion of concrete members or deformation on the surface of an embankment or the like, but measures detailed deformation in the ground. At present, it is not used to do so.
【０００６】このような状況から、本願発明者は、地中
内の詳細な変状を計測することができる地中用光ファイ
バーセンサー及びその光ファイバーセンサーシステムを
既に特願平２０００−３１３７２号として提案した。Under such circumstances, the inventor of the present application has already proposed an underground optical fiber sensor and an optical fiber sensor system capable of measuring a detailed deformation in the underground as Japanese Patent Application No. 2000-31372. .
【０００７】本発明は、上記状況に鑑みて、土構造物の
補強を行うとともに、その後の土構造物の変状管理を同
時に行うことができる土構造物用すべり検知補強杭を提
供することを目的とする。The present invention has been made in view of the above circumstances, and has as its object to provide a slip detection reinforcing pile for an earth structure capable of reinforcing the earth structure and simultaneously performing deformation management of the earth structure thereafter. Aim.
【０００８】[0008]
【課題を解決するための手段】本発明は、上記目的を達
成するために、 〔１〕土構造物用すべり検知補強杭において、本体が土
構造物の側面から打ち込まれるとともに、前記本体の内
空部の内面に固定される光ファイバーセンサーを具備す
ることを特徴とする。In order to achieve the above object, the present invention provides: [1] In a slip detection reinforcing pile for an earth structure, the main body is driven from the side of the earth structure and the inside of the main body. An optical fiber sensor fixed to the inner surface of the cavity is provided.
【０００９】〔２〕上記〔１〕記載の土構造物用すべり
検知補強杭において、前記本体は高剛性管状杭であるこ
とを特徴とする。[2] In the slip detecting and reinforcing pile for an earth structure according to the above [1], the main body is a highly rigid tubular pile.
【００１０】〔３〕上記〔１〕又は〔２〕記載の土構造
物用すべり検知補強杭において、前記本体の内空部の内
面に間隔をおいて点状に光ファイバーが固定されること
を特徴とする。[3] In the slip detecting reinforcing pile for earth structure according to the above [1] or [2], an optical fiber is fixed in a dot-like manner at intervals on an inner surface of an inner space of the main body. And
【００１１】〔４〕上記〔１〕又は〔２〕記載の土構造
物用すべり検知補強杭において、前記本体の内空部の内
面の全面に光ファイバーが固定されることを特徴とす
る。[4] The slip detecting reinforcing pile according to [1] or [2], wherein an optical fiber is fixed to the entire inner surface of the inner space of the main body.
【００１２】〔５〕上記〔３〕又は〔４〕記載の土構造
物用すべり検知補強杭において、前記本体の内空部の出
入口において光ファイバーが接着樹脂により固定される
ことを特徴とする。[5] In the slip detection reinforcing pile for an earth structure according to the above [3] or [4], an optical fiber is fixed by an adhesive resin at an entrance / exit of an inner space of the main body.
【００１３】〔６〕上記〔３〕、〔４〕又は〔５〕記載
の土構造物用すべり検知補強杭において、前記本体の内
空部の出入口に弾性材からなるキャップを装着すること
を特徴とする。[6] In the slip detection reinforcing pile according to the above [3], [4] or [5], a cap made of an elastic material is attached to an entrance of an inner space of the main body. And
【００１４】〔７〕上記〔１〕、〔２〕、〔３〕、
〔４〕又は〔５〕記載の土構造物用すべり検知補強杭に
おいて、前記本体に水抜き穴が形成されることを特徴と
する。[7] The above [1], [2], [3],
In the slip detecting reinforcing pile for soil structure according to [4] or [5], a drain hole is formed in the main body.
【００１５】〔８〕上記〔７〕記載の土構造物用すべり
検知補強杭において、前記土構造物の側面から前記補強
杭の先端が上方に杭頭が下方になるように傾斜させて施
工することを特徴とする。[8] In the slip detecting reinforcing pile for an earth structure according to the above [7], the reinforcing pile is inclined from the side surface of the earth structure such that the tip of the reinforcing pile is directed upward and the pile head is directed downward. It is characterized by the following.
【００１６】[0016]
〔９〕本体が土構造物の側面から打ち込ま
れるとともに、前記本体の外面に設けられ、その外面を
樹脂コーティングする光ファイバーセンサーを具備する
ことを特徴とする。[9] A main body is driven from the side of the earth structure, and an optical fiber sensor is provided on an outer surface of the main body, and the outer surface is coated with a resin.
【００１７】〔１０〕上記[10] The above
〔９〕記載の土構造物用すべ
り検知補強杭において、前記本体は中実であることを特
徴とする。[9] In the slip detection reinforcing pile according to [9], the main body is solid.
【００１８】[0018]
【発明の実施の形態】以下、本発明の実施の形態につい
て、詳細に説明する。Embodiments of the present invention will be described below in detail.
【００１９】図１は本発明の実施例を示す地中用光ファ
イバーセンサーシステムを用いる土構造物用すべり検知
補強杭の施工を示す模式図である。FIG. 1 is a schematic view showing the construction of a slip detection reinforcing pile for an earth structure using an underground optical fiber sensor system according to an embodiment of the present invention.
【００２０】図１に示すように、地山や盛土された軌道
区域１に、光ファイバーセンサーの機能を有する土構造
物用すべり検知補強杭２が施工される。As shown in FIG. 1, a slip detecting reinforcing pile 2 for an earth structure having the function of an optical fiber sensor is installed in a ground section or an embanked track section 1.
【００２１】この土構造物用すべり検知補強杭２は、鋼
管やＦＲＰ管などの高剛性管状杭本体３内部に光ファイ
バー４が装着される。In the slip detecting reinforcing pile 2 for an earth structure, an optical fiber 4 is mounted inside a highly rigid tubular pile main body 3 such as a steel pipe or an FRP pipe.
【００２２】その土構造物用すべり検知補強杭２は地山
や盛土された軌道区域１の側面からその補強杭２の先端
２Ａが上方に杭頭２Ｂが下方になるように傾斜させて打
ち込むようにしている。The reinforcing pile 2 for detecting slips for earth structures is driven in such a manner that the tip 2A of the reinforcing pile 2 is inclined upward from the side surface of the ground or the filled track section 1 so that the pile head 2B is downward. I have to.
【００２３】以下、その土構造物用すべり検知補強杭の
具体例を示す。Hereinafter, a specific example of the slip detection reinforcing pile for an earth structure will be described.
【００２４】図２は本発明の第１実施例を示す土構造物
用すべり検知補強杭の構造を示す図、図３はその光ファ
イバーの固定状態を示す拡大図である。FIG. 2 is a view showing the structure of a slip detecting reinforcing pile for an earth structure according to a first embodiment of the present invention, and FIG. 3 is an enlarged view showing a fixed state of the optical fiber.
【００２５】これらの図において、１０は土構造物用す
べり検知補強杭であり、その高剛性管状杭本体１１には
内空部１２が形成され、その内空部１２の内部に光ファ
イバー１３を装置して、所定位置を点状に接着樹脂１４
により固定するようにしている。なお、高剛性管状杭本
体の先端部は打設し易いように先端部を鋭角とする。高
剛性管状杭本体１１の内空部の出口では確実に接着樹脂
１４′により固定して、光ファイバー１３が高剛性管状
杭本体１１の内空部の出入口で擦れて損傷することがな
いように留意する。In these figures, reference numeral 10 denotes a slip detecting reinforcing pile for an earth structure, an inner space 12 is formed in a highly rigid tubular pile main body 11, and an optical fiber 13 is installed inside the inner space 12. Then, a predetermined position of the adhesive resin 14
To fix it. The tip of the high-rigidity tubular pile body has an acute angle so that it can be easily driven. At the exit of the hollow space of the high-rigidity tubular pile body 11, it is securely fixed with the adhesive resin 14 'so that the optical fiber 13 is not rubbed and damaged at the entrance of the hollow space of the high-rigidity tubular pile body 11. I do.
【００２６】また、光ファイバー１３の高剛性管状杭本
体１１の内空部１２への固定は、図４に示すように、内
空部１２内に光ファイバー１３を装着して、高剛性管状
杭本体１１の内空部の全面に接着樹脂１６を塗布して、
光ファイバー１３を全体的に固定するようにしてもよ
い。ここでも、光ファイバー１３が高剛性管状杭本体１
１の内空部の出入口で擦れて損傷することがないように
留意する。The optical fiber 13 is fixed to the hollow space 12 of the high-rigidity tubular pile body 11 by mounting the optical fiber 13 in the hollow space 12 as shown in FIG. Apply adhesive resin 16 to the entire inner space of
The optical fiber 13 may be fixed as a whole. Also in this case, the optical fiber 13 is a highly rigid tubular pile main body 1.
Care should be taken to avoid rubbing and damage at the doorway of the inner space.
【００２７】また、高剛性管状杭本体１１の内空部の出
入口まで、接着樹脂１６′を延ばして確実に内空部の出
口で固定するようにして、光ファイバー１３が高剛性管
状杭本体１１の内空部の出口で擦れて損傷することがな
いように留意する。Also, the optical fiber 13 is connected to the high-rigidity tubular pile main body 11 by extending the adhesive resin 16 'to the entrance of the high-rigidity tubular pile main body 11 and securely fixing it at the outlet of the high-rigidity tubular pile main body 11. Care should be taken not to rub and damage at the exit of the inner space.
【００２８】また、光ファイバーの高剛性管状杭本体の
内空部の出入口には弾性材からなるキャップ１５を装着
するようにしてもよい。Further, a cap 15 made of an elastic material may be attached to the entrance / exit of the hollow space of the optical fiber high rigid tubular pile body.
【００２９】図５は本発明の第２実施例を示す土構造物
用すべり検知補強杭の構造を示す図である。FIG. 5 is a view showing the structure of a slip detection reinforcing pile for an earth structure according to a second embodiment of the present invention.
【００３０】この図において、２０は土構造物用すべり
検知補強杭であり、この土構造物用すべり検知補強杭２
０は、その高剛性管状杭本体２１には内空部２２が形成
され、その内空部２２の内部に光ファイバー２３を装置
して、所定位置を点状に接着樹脂２４により固定するよ
うにしている。更に、この実施例では、高剛性管状杭本
体２１には水抜き穴２５を形成して、通水性が良好にな
るようにする。In this figure, reference numeral 20 denotes a slip detecting reinforcing pile for an earth structure, and the slip detecting reinforcing pile 2 for the earth structure is shown.
Reference numeral 0 denotes an inner space 22 formed in the high-rigidity tubular pile main body 21, an optical fiber 23 is provided inside the inner space 22, and a predetermined position is fixed in a point-like manner by an adhesive resin 24. I have. Further, in this embodiment, a drain hole 25 is formed in the high-rigidity tubular pile main body 21 so that water permeability is good.
【００３１】特に、この種の土構造物用すべり検知補強
杭２０の場合は、図１にも示したように、地山や盛土さ
れた軌道区域１の側面からその補強杭２０の先端２０Ａ
が上方に杭頭２０Ｂが下方になるように傾斜させて打ち
込むようにするのが良く地盤内から高剛性管状杭本体２
１の内部に浸入した水は、水抜き穴２５を通って下方へ
と導かれ、高剛性管状杭本体２１の後端（出入口）から
外部へ排出されるため補強材として好ましい。In particular, in the case of this kind of slip detecting reinforcing pile 20 for soil structure, as shown in FIG. 1, the tip 20A of the reinforcing pile 20 is viewed from the side of the ground or the embanked track section 1.
It is preferable that the pile 20B be driven so as to be inclined upward such that the pile head 20B is directed downward.
The water that has entered the inside of the pipe 1 is guided downward through the drain hole 25 and is discharged to the outside from the rear end (gateway) of the high-rigidity tubular pile main body 21, which is preferable as a reinforcing material.
【００３２】図６は本発明の第３実施例を示す土構造物
用すべり検知補強杭の構造を示す図である。FIG. 6 is a view showing a structure of a slip detection reinforcing pile for an earth structure according to a third embodiment of the present invention.
【００３３】この実施例においては、中実状の土構造物
用すべり検知補強杭３０の本体３１の外面に光ファイバ
ー３２を巻回し、その外面を樹脂３３でコーティングす
るようにしている。In this embodiment, an optical fiber 32 is wound around the outer surface of a main body 31 of a solid-state slip detection reinforcing pile 30 for a soil structure, and the outer surface is coated with a resin 33.
【００３４】このようにすることにより、土構造物用す
べり検知補強杭の構造を簡素化するとともに、光ファイ
バーの装着も容易である。その光ファイバーは樹脂によ
り防護することができる。This simplifies the structure of the slip detection reinforcing pile for an earth structure and makes it easy to mount an optical fiber. The optical fiber can be protected by a resin.
【００３５】以下、上記した土構造物用すべり検知補強
杭を用いた光ファイバーセンサーシステムについて図１
を参照しながら説明する。FIG. 1 shows an optical fiber sensor system using the above-mentioned slip detecting reinforcing pile for an earth structure.
This will be described with reference to FIG.
【００３６】土構造物用すべり検知補強杭２は地山や盛
土された軌道区域１の側面から先端を上方に傾斜させ
て、打ち込まれて、光ファイバー４が布設される。その
場合に、基準となる光ファイバー５を配置しておく。An optical fiber 4 is laid with the tip of the soil detection reinforcing reinforcing pile 2 for the earth structure 2 being inclined upward from the side surface of the ground or the embanked track section 1. In that case, a reference optical fiber 5 is arranged in advance.
【００３７】そこで、基準となる光ファイバー５と地山
や盛土された軌道区域１に配置された光ファイバー４と
に光源６から第１の光カプラ４ａを通して光を導入し
て、光ファイバー５と光ファイバー４の両方に光を通
し、光の導波状態を第２の光カプラ４ｂを介してＯ／Ｅ
（光／電気変換器）７により電気に変換して、パッシブ
ホモダイン復調器８で復調して、計測装置９により、光
ファイバー５からの電気的出力状態を監視する。Therefore, light is introduced from the light source 6 through the first optical coupler 4a to the optical fiber 5 serving as a reference and the optical fiber 4 disposed in the ground or the embankment track section 1, and the optical fiber 5 and the optical fiber 4 are connected to each other. Light passes through both, and the waveguide state of the light is changed to O / E via the second optical coupler 4b.
(Optical / electrical converter) 7 converts the electric power to electricity, and demodulates the electric power with a passive homodyne demodulator 8. The measuring device 9 monitors the electric output state from the optical fiber 5.
【００３８】したがって、例えば、地山や盛土の内部に
変状を来している場合には、光ファイバー４の経路に変
化が生じる。つまり、土構造物用すべり検知補強杭２が
変位する。すると、光ファイバー４内の光の導波の状態
が変化し、基準となる光ファイバー５の光の導波の状態
と比較すると、偏差が生じることになり、その偏差を計
測装置９により計測することができる。Therefore, for example, when the inside of the ground or the embankment is deformed, the path of the optical fiber 4 is changed. That is, the slip detection reinforcing pile 2 for the earth structure is displaced. Then, the state of light guiding in the optical fiber 4 changes, and a deviation occurs when compared with the light guiding state of the optical fiber 5 serving as a reference, and the deviation can be measured by the measuring device 9. it can.
【００３９】また、上記した土構造物用すべり検知補強
杭２が打ち込まれた地山や盛土の内部に破壊的な変状が
生じたような場合には、光ファイバー４にも大きな変化
が生じることになり、基準となる光ファイバー５の光の
導波の状態と大きく異なる時には、計測装置９に連動す
る警報装置９Ａによって警報を出すようにしてもよい。
また、光源（レーザ光源）６とパッシブホモダイン復調
器８間には、変調信号発生器８Ａが設けられる。Further, when destructive deformation occurs in the ground or embankment into which the above-mentioned slip detecting reinforcing pile 2 for earth structure has been driven, a large change also occurs in the optical fiber 4. When the state of the optical waveguide 5 is largely different from that of the optical fiber 5 serving as a reference, an alarm may be issued by an alarm device 9A linked to the measuring device 9.
A modulation signal generator 8A is provided between the light source (laser light source) 6 and the passive homodyne demodulator 8.
【００４０】光ファイバーセンサーの布設の態様はその
構造物の変状をどのようにモニターするかによって、種
々の光ファイバーセンサーの配置とすることができる。The manner of laying the optical fiber sensors can be various optical fiber sensor arrangements depending on how the structure is monitored for deformation.
【００４１】また、計測は数１０ｋｍ以上行うことがで
き、かつ、遠隔地で集中管理が可能である。The measurement can be performed for several tens of kilometers or more, and can be centrally managed in a remote place.
【００４２】なお、本発明は上記実施例に限定されるも
のではなく、本発明の趣旨に基づいて種々の変形が可能
であり、これらを本発明の範囲から排除するものではな
い。It should be noted that the present invention is not limited to the above-described embodiment, but various modifications are possible based on the spirit of the present invention, and these are not excluded from the scope of the present invention.
【００４３】[0043]
【発明の効果】以上、詳細に説明したように、本発明に
よれば、以下のような効果を奏することができる。As described above, according to the present invention, the following effects can be obtained.
【００４４】（Ａ）地山や盛土等の土構造物の補強を行
うとともに、その後の地山や盛土の土構造物の変状管理
を同時に行うことができる。(A) It is possible to reinforce the soil structure such as the ground and the embankment, and to simultaneously perform the deformation management of the soil structure of the ground and the embankment.
【００４５】（Ｂ）高剛性管状杭本体の内空部に光ケー
ブルを固定するので、光ケーブルセンサーの施工が容易
である。(B) Since the optical cable is fixed to the inner space of the high-rigidity tubular pile main body, the installation of the optical cable sensor is easy.
【００４６】（Ｃ）光ケーブルの高剛性管状杭本体の内
空部の出入口における固定を確実にしたので、光ケーブ
ルの損傷を防止することができる。(C) Since the optical cable is securely fixed at the entrance and exit of the inner space of the high-rigidity tubular pile main body, damage to the optical cable can be prevented.
【００４７】（Ｄ）地山や盛土された軌道区域の側面か
ら補強杭の先端が上方に杭頭が下方になるように傾斜さ
せて高剛性管状杭を打ち込むようにすることにより、地
盤内から高剛性管状杭本体の内部に浸入した水は、水抜
き穴を通って下方へと導かれて土構造物の外部へと排出
されるため補強材として好ましい。(D) By injecting a high-rigidity tubular pile from the side of the ground or the embanked track section so that the tip of the reinforcing pile is inclined upward so that the pile head is directed downward, and from the ground, The water that has entered the inside of the high-rigidity tubular pile main body is guided downward through the drain hole and is discharged to the outside of the earth structure, so that it is preferable as a reinforcing material.
【図１】本発明の実施例を示す地中用光ファイバーセン
サーシステムを用いる土構造物用すべり検知補強杭の施
工を示す模式図である。FIG. 1 is a schematic view showing the construction of a slip detection reinforcing pile for an earth structure using an underground optical fiber sensor system according to an embodiment of the present invention.
【図２】本発明の第１実施例を示す土構造物用すべり検
知補強杭の構造を示す図である。FIG. 2 is a view showing a structure of a slip detection reinforcing pile for an earth structure according to a first embodiment of the present invention.
【図３】本発明の第１実施例を示す土構造物用すべり検
知補強杭の光ファイバーの固定状態を示す拡大図（その
１）である。FIG. 3 is an enlarged view (part 1) illustrating a fixed state of an optical fiber of the slip detection reinforcing pile for an earth structure according to the first embodiment of the present invention.
【図４】本発明の第１実施例を示す土構造物用すべり検
知補強杭の光ファイバーの固定状態を示す拡大図（その
２）である。FIG. 4 is an enlarged view (part 2) showing a fixed state of an optical fiber of the slip detection reinforcing pile for an earth structure according to the first embodiment of the present invention.
【図５】本発明の第２実施例を示す土構造物用すべり検
知補強杭の構造を示す図である。FIG. 5 is a view illustrating a structure of a slip detection reinforcing pile for an earth structure according to a second embodiment of the present invention.
【図６】本発明の第３実施例を示す土構造物用すべり検
知補強杭の構造を示す図である。FIG. 6 is a view illustrating a structure of a slip detection reinforcing pile for an earth structure according to a third embodiment of the present invention.
１ 地山や盛土された軌道区域 ２，１０，２０，３０ 土構造物用すべり検知補強杭 ２Ａ，２０Ａ 土構造物用すべり検知補強杭の先端 ２Ｂ，２０Ｂ 土構造物用すべり検知補強杭の杭頭 ３，１１，２１，３１ 高剛性管状杭本体 ４，４′，１３，１３′，２３，２３′，３２ 光フ
ァイバー ４ａ 第１の光カプラ ４ｂ 第２の光カプラ ５ 基準となる光ファイバー ６ 光源 ７ Ｏ／Ｅ（光／電気変換器） ８ パッシブホモダイン復調器 ８Ａ 変調信号発生器 ９ 計測装置 ９Ａ 警報装置 １２，２２ 内空部 １４，１４′，１６，１６′，２４ 接着樹脂 １５ キャップ ２５ 水抜き穴 ３３ 樹脂1 Track area filled with ground or embankment 2,10,20,30 Slip detection reinforcement pile for soil structure 2A, 20A Tip of slip detection reinforcement pile for soil structure 2B, 20B Pile of slip detection reinforcement pile for soil structure Head 3,11,21,31 High-rigidity tubular pile main body 4,4 ', 13,13', 23,23 ', 32 Optical fiber 4a First optical coupler 4b Second optical coupler 5 Reference optical fiber 6 Light source 7 O / E (optical / electrical converter) 8 passive homodyne demodulator 8A modulation signal generator 9 measuring device 9A alarm device 12,22 inner space 14,14 ', 16,16', 24 adhesive resin 15 cap 25 drainage Hole 33 resin
───────────────────────────────────────────────────── フロントページの続き (72)発明者 村田 修 東京都国分寺市光町二丁目８番地38 財団 法人 鉄道総合技術研究所内 (72)発明者 棚村 史郎 東京都国分寺市光町二丁目８番地38 財団 法人 鉄道総合技術研究所内 (72)発明者 伊藤 裕昌 神奈川県横浜市中区錦町12番地 三菱重工 業株式会社横浜製作所内 (72)発明者 秋山 洋 神奈川県横浜市中区錦町12番地 三菱重工 業株式会社横浜製作所内 (72)発明者 山浦 剛俊 長崎県長崎市深堀町五丁目717番１号 三 菱重工業株式会社長崎研究所内 (72)発明者 紀 博徳 長崎県長崎市深堀町五丁目717番１号 三 菱重工業株式会社長崎研究所内 Ｆターム(参考） 2D044 EA01 EA07 2F065 AA65 GG04 LL00 LL02 QQ00 QQ25 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Osamu Murata 2-8-8 Hikaricho, Kokubunji-shi, Tokyo Inside the Railway Technical Research Institute (72) Inventor Shiro Tanahmura 2-8-8 Hikaricho, Kokubunji-shi, Tokyo 38 Inside the Railway Technical Research Institute (72) Inventor Hiromasa Ito 12 Nishiki-cho, Naka-ku, Yokohama-shi, Kanagawa Prefecture Mitsubishi Heavy Industries, Ltd. Inside Yokohama Works Co., Ltd. (72) Inventor Taketoshi Yamaura 5-717-1, Fukahori-cho, Nagasaki-shi, Nagasaki Sanishi Heavy Industries Co., Ltd. No.1 F-term in Nagasaki Laboratory, Mitsubishi Heavy Industries, Ltd. (Reference) 2D044 EA01 EA07 2F065 AA65 GG04 LL00 LL02 QQ00 QQ25
Claims (10)
とともに、前記本体の内空部の内面に固定される光ファ
イバーセンサーを具備することを特徴とする土構造物用
すべり検知補強杭。1. A slip detection reinforcing pile for an earth structure, wherein the body is driven from a side surface of the earth structure and an optical fiber sensor fixed to an inner surface of an inner space of the body is provided.
強杭において、前記本体は高剛性管状杭であることを特
徴とする土構造物用すべり検知補強杭。2. The slip detecting and reinforcing pile for an earth structure according to claim 1, wherein the main body is a high-rigidity tubular pile.
検知補強杭において、前記本体の内空部の内面に間隔を
おいて点状に光ファイバーが固定されることを特徴とす
る土構造物用すべり検知補強杭。3. The soil detection reinforcing pile according to claim 1, wherein an optical fiber is fixed in a point-like manner at intervals on an inner surface of an inner space of the main body. Slip detection reinforcement pile for goods.
検知補強杭において、前記本体の内空部の内面の全面に
光ファイバーが固定されることを特徴とする土構造物用
すべり検知補強杭。4. The slip detection reinforcing pile for an earth structure according to claim 1, wherein an optical fiber is fixed to the entire inner surface of the inner space of the main body. Pile.
検知補強杭において、前記本体の内空部の出入口におい
て光ファイバーが接着樹脂により固定されることを特徴
とする土構造物用すべり検知補強杭。5. The slip detection reinforcing pile for an earth structure according to claim 3, wherein an optical fiber is fixed by an adhesive resin at an entrance and exit of an inner space of the main body. Reinforced pile.
べり検知補強杭において、前記本体の内空部の出入口に
弾性材からなるキャップを装着することを特徴とする土
構造物用すべり検知補強杭。6. The slip detecting reinforcement pile for an earth structure according to claim 3, wherein a cap made of an elastic material is attached to an entrance of an inner space of the main body. Slip detection reinforcement pile.
造物用すべり検知補強杭において、前記本体に水抜き穴
が形成されることを特徴とする土構造物用すべり検知補
強杭。7. The slip detection reinforcing pile for an earth structure according to claim 1, 2, 3, 4, or 5, wherein a drain hole is formed in the main body. Pile.
強杭において、前記土構造物の側面から前記補強杭の先
端が上方に杭頭が下方になるように傾斜させて施工する
ことを特徴とする土構造物用すべり検知補強杭。8. The slip detecting reinforcing pile for an earth structure according to claim 7, wherein the pile is constructed such that a tip of the reinforcing pile is inclined upward from a side surface of the earth structure such that a pile head is directed downward. Characterized by a slip detection reinforcement pile for earth structures.
とともに、前記本体の外面に設けられ、その外面を樹脂
コーティングする光ファイバーセンサーを具備すること
を特徴とする土構造物用すべり検知補強杭。9. A slip detection reinforcing pile for an earth structure, wherein the body is driven from the side surface of the earth structure, and an optical fiber sensor provided on an outer surface of the body and coating the outer surface with a resin is provided.
補強杭において、前記本体は中実であることを特徴とす
る土構造物用すべり検知補強杭。10. The reinforcement pile for detecting slippage of an earth structure according to claim 9, wherein the main body is solid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000240129A JP4208062B2 (en) | 2000-08-08 | 2000-08-08 | Slip detection reinforcement pile for earth structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000240129A JP4208062B2 (en) | 2000-08-08 | 2000-08-08 | Slip detection reinforcement pile for earth structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002054153A true JP2002054153A (en) | 2002-02-20 |
| JP4208062B2 JP4208062B2 (en) | 2009-01-14 |
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ID=18731550
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000240129A Expired - Fee Related JP4208062B2 (en) | 2000-08-08 | 2000-08-08 | Slip detection reinforcement pile for earth structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009019878A (en) * | 2007-07-10 | 2009-01-29 | Ntt Infranet Co Ltd | Sensor for amount of deformation, measuring device for amount of deformation, and measuring method of deformation amount |
| JP2009192319A (en) * | 2008-02-13 | 2009-08-27 | Taiheiyo Cement Corp | Buried type strain meter |
| CN103699060A (en) * | 2013-09-27 | 2014-04-02 | 广东工业大学 | Effectiveness optimization control system used in tubular pile producing and curing process |
| CN116024959A (en) * | 2023-03-29 | 2023-04-28 | 中国电力科学研究院有限公司 | Precast pile, construction method thereof and quality detection method |
-
2000
- 2000-08-08 JP JP2000240129A patent/JP4208062B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009019878A (en) * | 2007-07-10 | 2009-01-29 | Ntt Infranet Co Ltd | Sensor for amount of deformation, measuring device for amount of deformation, and measuring method of deformation amount |
| JP2009192319A (en) * | 2008-02-13 | 2009-08-27 | Taiheiyo Cement Corp | Buried type strain meter |
| CN103699060A (en) * | 2013-09-27 | 2014-04-02 | 广东工业大学 | Effectiveness optimization control system used in tubular pile producing and curing process |
| CN116024959A (en) * | 2023-03-29 | 2023-04-28 | 中国电力科学研究院有限公司 | Precast pile, construction method thereof and quality detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4208062B2 (en) | 2009-01-14 |
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