JP2002286700A - Fracture detection system for foundation structure by ae sound - Google Patents
Fracture detection system for foundation structure by ae soundInfo
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- JP2002286700A JP2002286700A JP2001092918A JP2001092918A JP2002286700A JP 2002286700 A JP2002286700 A JP 2002286700A JP 2001092918 A JP2001092918 A JP 2001092918A JP 2001092918 A JP2001092918 A JP 2001092918A JP 2002286700 A JP2002286700 A JP 2002286700A
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- sound
- destruction
- sound sensor
- substructure
- detection system
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 230000006378 damage Effects 0.000 claims abstract description 74
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 238000012545 processing Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000015654 memory Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ＡＥ音による基礎
構造物の破壊探知システムに関するものである。ここ
で、基礎構造物とは橋梁（橋脚や橋台）のみならず、ト
ンネルに設けられるボックスカルバート等の鉄道車両
（列車）や自動車（乗用車、トラックやバス）等の移動
体に供する基礎的な構築物をさすものとする。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for detecting the destruction of a substructure by AE sound. Here, the basic structure is not only a bridge (pier or abutment), but also a basic structure provided to a moving body such as a railcar (train) such as a box culvert provided in a tunnel or a car (passenger car, truck or bus). Shall be referred to.
【０００２】[0002]
【従来の技術】近年、コンクリート構造物の維持管理に
必要な非破壊検査法の重要性、必要性が高まっている。
従来の検査方法によれば、基礎構造物に対するアコース
ティックエミッション音法（ＡＥ音法）による損傷調査
の有効性が既に確認されている。2. Description of the Related Art In recent years, the importance and necessity of nondestructive inspection methods required for maintenance and management of concrete structures have been increasing.
According to the conventional inspection method, the effectiveness of the damage inspection of the substructure by the acoustic emission sound method (AE sound method) has already been confirmed.
【０００３】例えば、調査対象物の内部破壊挙動に伴っ
て発生するＡＥ音による破壊検知を行う方法（例えば、
特許第２８３９８３１号公報）や、構造物を支える杭の
周辺に、ＡＥ音センサーを複数個取り付けた取付棒を設
置し、杭の破壊を調査する方法（例えば、特許第２８２
０６３４号公報）等が提案されている。[0003] For example, a method of detecting destruction by an AE sound generated in accordance with the internal destruction behavior of a survey target (for example,
(Japanese Patent No. 2839831) and a method of investigating the destruction of a pile by installing a mounting rod having a plurality of AE sound sensors mounted around a pile supporting a structure (for example, Patent No. 282).
No. 0634) has been proposed.
【０００４】因みに、ＡＥ音（ＡＥ波）法は受動的な測
定法であり、その入力は荷重（動的や静的な力）、すな
わち、部材に載荷されたときに損傷箇所のひび割れの進
展や擦れ等によって発生した弾性波を探知して測定す
る。ＡＥ波（音）の性質は、断層（岩盤の損傷箇所）に
よる地震波に相似する。これに対して、他の波による測
定の場合は、能動的な調査法であり、弾性波（例えば、
超音波，電磁波等）そのものを構造物に入力し、また、
この波を探知して構造物の損傷箇所を推定するようにし
ており、両者は基本的に異なった測定方式である。[0004] Incidentally, the AE sound (AE wave) method is a passive measurement method, and its input is a load (dynamic or static force), that is, crack propagation at a damaged portion when the member is loaded. Elastic waves generated by rubbing or the like are detected and measured. The properties of AE waves (sounds) are similar to seismic waves due to faults (damage sites in rock). On the other hand, the measurement using other waves is an active investigation method, and elastic waves (for example,
Ultrasonic waves, electromagnetic waves, etc.) into the structure itself,
This wave is detected to estimate the damaged portion of the structure, and the two are basically different measurement methods.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来の
ＡＥ音法による基礎構造物の調査は、調査対象物の内部
破壊の検知であったり、構造物に対する載荷と地盤中へ
の導波棒設置が必要となることから、ある程度の調査期
間と高いコストが見込まれ、例えば、供用中の鉄道構造
物への実際的な適用には多くの問題点がある。However, the investigation of the basic structure by the conventional AE sound method is to detect the internal destruction of the object to be investigated, or to load the structure and install the waveguide rod in the ground. Due to the requirement, some investigation period and high cost are expected, and there are many problems in practical application to, for example, in-service railway structures.
【０００６】本発明では、上記問題点を除去し、通行に
伴って加えられる移動体荷重を利用し、特に、目視では
点検が不可能な基礎損傷部のＡＥ音を誘発させて、基礎
損傷部の損傷状況を検知することができるＡＥ音による
基礎構造物の破壊探知システムを提供することを目的と
する。[0006] In the present invention, the above-mentioned problems are eliminated, and the AE sound of a foundation damaged portion which cannot be visually inspected is used, in particular, by utilizing a moving body load applied along with the traffic, so that the basic damaged portion can be obtained. It is an object of the present invention to provide a destruction detection system for a substructure using an AE sound capable of detecting a damage state of a substructure.
【０００７】[0007]
【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〕ＡＥ音による基礎構造物の破壊探知システムにお
いて、移動体の通行に供する橋梁にＡＥ音センサーを設
け、前記橋梁上を通行する前記移動体の荷重による前記
橋梁の下部に設けられる杭の破壊に起因するＡＥ音を前
記ＡＥ音センサーで検知し、前記橋梁の杭の破壊を探知
することを特徴とする。In order to achieve the above object, the present invention provides: [1] In a system for detecting the destruction of a substructure using an AE sound, an AE sound sensor is provided on a bridge provided for the passage of a moving object; The AE sound sensor detects an AE sound caused by destruction of a pile provided at a lower portion of the bridge due to a load of the moving body passing on the bridge, and detects the destruction of the pile of the bridge. .
【０００８】〔２〕上記〔１〕記載のＡＥ音による基礎
構造物の破壊探知システムにおいて、前記橋梁の杭の破
壊探知は、この杭の損傷位置と損傷程度を探知すること
を特徴とする。[2] In the system for detecting the destruction of a foundation structure by the AE sound according to the above [1], the destruction detection of the pile of the bridge is performed by detecting a damaged position and a degree of damage of the pile.
【０００９】〔３〕ＡＥ音による基礎構造物の破壊探知
システムにおいて、移動体の通行に供する抗土圧構造物
である橋台の抗土圧側と反対側の露出側にＡＥ音センサ
ーを設け、前記移動体の荷重による前記橋台の抗土圧側
の破壊に起因するＡＥ音を前記ＡＥ音センサーで検知
し、前記橋台の破壊を探知することを特徴とする。[3] In the destruction detection system for a substructure using AE sound, an AE sound sensor is provided on the exposed side opposite to the anti-earth pressure side of the abutment, which is the anti-earth pressure structure used for traffic of the moving object, The AE sound sensor detects an AE sound caused by destruction of the abutment on the anti-earth pressure side due to a load of a moving body, and detects the destruction of the abutment.
【００１０】〔４〕上記〔３〕記載のＡＥ音による基礎
構造物の破壊探知システムにおいて、前記橋台の破壊探
知は、該橋台の損傷位置と損傷程度を探知することを特
徴とする。[4] In the destruction detection system for a substructure using the AE sound described in [3], the destruction detection of the abutment is performed by detecting a damage position and a degree of damage of the abutment.
【００１１】〔５〕移動体の通行に供するトンネルの坑
体を構成する抗土圧構造物である内壁の抗土圧側と反対
側の露出側にＡＥ音センサーを設け、前記移動体の荷重
による前記坑体の破壊に起因するＡＥ音を前記ＡＥ音セ
ンサーで検知し、前記坑体の破壊を探知することを特徴
とする。[5] An AE sound sensor is provided on the exposed side opposite to the anti-earth pressure side of the inner wall which is the anti-earth pressure structure constituting the tunnel body of the tunnel used for the passage of the moving body, and the AE sound sensor is provided by the load of the moving body. An AE sound caused by the destruction of the pit is detected by the AE sound sensor, and the destruction of the pit is detected.
【００１２】〔６〕上記〔５〕記載のＡＥ音による基礎
構造物の破壊探知システムにおいて、前記坑体の破壊探
知は、この坑体の損傷位置と損傷程度を探知することを
特徴とする。[6] In the destruction detection system for a substructure using the AE sound described in the above [5], the destruction detection of the pit is performed by detecting a damage position and a degree of damage of the pit.
【００１３】〔７〕上記〔１〕、〔３〕又は〔５〕記載
のＡＥ音による基礎構造物の破壊探知システムにおい
て、前記ＡＥ音センサーは、道路事業現場の実状を考慮
して、地盤中への導波棒を設置せず、フーチング表面、
側面又は地表面に設置することを特徴とする。[7] In the system for detecting destruction of a substructure by the AE sound according to the above [1], [3] or [5], the AE sound sensor is provided on the ground in consideration of the actual condition of the road business site. Without installing a waveguide rod to the footing surface,
It is characterized by being installed on the side surface or the ground surface.
【００１４】〔８〕上記〔１〕、〔３〕又は〔５〕記載
のＡＥ音による基礎構造物の破壊探知システムにおい
て、前記ＡＥ音センサーは、設置面に４チャネルずつ設
置することを特徴とする。[8] In the system for detecting destruction of a substructure by AE sound according to the above [1], [3] or [5], the AE sound sensor is installed on each of four installation channels. I do.
【００１５】[0015]
〔９〕上記〔１〕、〔３〕又は〔５〕記載
のＡＥ音による基礎構造物の破壊探知システムにおい
て、前記ＡＥ音センサーによる情報を、外部情報と対比
することにより、地震、地盤の不同沈下等による基礎構
造物の損傷状況を探知・監視することを特徴とする。[9] In the destruction detection system for a substructure using the AE sound according to the above [1], [3] or [5], the information obtained by the AE sound sensor is compared with external information to thereby determine the earthquake and ground irregularity. The feature is to detect and monitor the damage condition of the substructure due to subsidence.
【００１６】[0016]
【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.
【００１７】図１は本発明の第１実施例を示す基礎構造
物としての橋梁とその杭の破壊検知システムの説明図で
ある。FIG. 1 is an explanatory diagram of a system for detecting the destruction of a bridge as a substructure and a pile thereof according to a first embodiment of the present invention.
【００１８】この図において、１は橋梁、２はその橋梁
１の杭、３は鉄道車両、４はその鉄道車両の荷重、５は
杭２の破壊検知を行うＡＥ音センサー装置であり、４チ
ャンネル（４ｃｈ）ＡＥ音センサー５Ａ〜５Ｄを一組と
している。１０はＡＥ音センサー５からの情報及び地震
情報や台風情報等の外部情報６を収集してデータの処理
及び管理を行うデータ・処理管理装置であり、中央処理
装置１１、入力インタフェース１２，１３，複数のメモ
リを有する記憶装置１４、出力インタフェース１５、出
力送信機能を有する出力装置１６を備えている。In this figure, 1 is a bridge, 2 is a pile of the bridge 1, 3 is a railway car, 4 is a load of the railway car, 5 is an AE sound sensor device for detecting breakage of the pile 2, and 4 channels. (4ch) The AE sound sensors 5A to 5D constitute one set. Reference numeral 10 denotes a data / processing management device that collects information from the AE sound sensor 5 and external information 6 such as earthquake information and typhoon information to process and manage data. The data / processing management device 10 includes a central processing unit 11, input interfaces 12, 13, and A storage device 14 having a plurality of memories, an output interface 15, and an output device 16 having an output transmission function are provided.
【００１９】そこで、鉄道車両３による荷重４が加わる
ことによる、橋梁の杭２のひび割れ２Ａが発生している
と、そのひび割れ２ＡのＡＥ音をＡＥ音センサー５によ
って検知する。つまり、４チャンネル（４ｃｈ）ＡＥ音
センサー５Ａ〜５Ｄによって、そのひび割れ２Ａの位置
とそのひび割れ２Ａの損傷の程度を探知することができ
る。Therefore, if a crack 2A is generated in the bridge pile 2 due to the application of the load 4 by the railway vehicle 3, the AE sound of the crack 2A is detected by the AE sound sensor 5. That is, the position of the crack 2A and the degree of damage to the crack 2A can be detected by the four-channel (4ch) AE sound sensors 5A to 5D.
【００２０】なお、ＡＥ音センサー５Ａ〜５Ｄは上記し
た位置以外にも、図１に示すように、適宜橋梁の取付け
やすいフーチング表面または側面に設置することができ
る。In addition, the AE sound sensors 5A to 5D can be appropriately installed on the footing surface or side surface where the bridge can be easily attached as shown in FIG.
【００２１】また、ＡＥ音センサーの配置間隔は、対象
物のＡＥ減衰特性によって決定する。例えば、ひび割れ
が多く発生することが予想されるような減衰が大きいと
思われる場合は狭い間隔で配置し、そうでない減衰が小
さいと思われる場合は広い間隔で配置する。また、各面
にそれぞれ４チャンネルずつ設置することで、各面の監
視が可能である。The intervals between the AE sound sensors are determined by the AE attenuation characteristics of the object. For example, when the attenuation is considered to be large such that many cracks are expected to occur, they are arranged at narrow intervals, and when the attenuation is not considered to be small, they are arranged at wide intervals. In addition, by installing four channels on each surface, it is possible to monitor each surface.
【００２２】ところで、ＡＥ音センサー５Ａ〜５Ｄから
の情報は、データ・処理管理装置１０に取り込まれ、記
憶装置１４のメモリＡに記憶される。一方、このデータ
・処理管理装置１０には、地震や台風等の外部情報６も
取り込まれ、その関連情報は記憶装置１４のメモリＢに
記憶される。The information from the AE sound sensors 5A to 5D is taken into the data / processing management device 10 and stored in the memory A of the storage device 14. On the other hand, the data / processing management device 10 also takes in external information 6 such as an earthquake or a typhoon, and stores the related information in the memory B of the storage device 14.
【００２３】そこで、例えば、地震発生の前のＡＥ音セ
ンサー情報ａと地震発生の後のＡＥ音センサー情報ｂを
比較することにより、杭２の被災状況を把握することが
できる。また、出力送信機能を有する出力装置１６から
の情報を上位の情報システムである総合防災センターに
伝送することにより広域の被災管理を行うようにするこ
とができる。Therefore, for example, by comparing the AE sound sensor information a before the occurrence of the earthquake and the AE sound sensor information b after the occurrence of the earthquake, the damage state of the pile 2 can be grasped. Further, by transmitting information from the output device 16 having the output transmission function to the integrated disaster prevention center, which is an upper-level information system, it is possible to perform disaster management in a wide area.
【００２４】このように、地震、地盤の不同沈下等によ
る基礎構造物の損傷状況を探知・監視し、重点的かつ効
率的な構造物の維持管理を行うことができる。As described above, it is possible to detect and monitor the damage state of the foundation structure due to the earthquake, uneven settlement of the ground, and the like, and to perform the focused and efficient maintenance of the structure.
【００２５】なお、上記したＡＥ音センサーは橋梁毎に
配置してもよいが、地域毎の橋梁の配置箇所を選定して
サンプリングすることにより、それに近隣するＡＥ音セ
ンサーの配置されない橋梁の破壊検知を類推することが
できる。The above-mentioned AE sound sensor may be arranged for each bridge. However, by selecting and sampling a place where the bridge is arranged for each area, it is possible to detect the destruction of the bridge where no AE sound sensor is arranged nearby. Can be inferred.
【００２６】図２は本発明の第２実施例を示す基礎構造
物としての橋梁とその杭の破壊検知システムの説明図で
ある。FIG. 2 is an explanatory view of a bridge as a substructure and a system for detecting breakage of a pile thereof according to a second embodiment of the present invention.
【００２７】この図において、２１は橋、２２は橋台、
２３は鉄道車両、２４は鉄道車両による荷重、２５はＡ
Ｅ音センサー、２６は土構造物、３０はデータ処理・管
理装置、３１は出力送信機能を有する出力装置である。In this figure, 21 is a bridge, 22 is an abutment,
23 is a railway vehicle, 24 is a load by the railway vehicle, 25 is A
An E sound sensor, 26 is a soil structure, 30 is a data processing / management device, and 31 is an output device having an output transmission function.
【００２８】この実施例においては、抗土圧構造物であ
る橋台２２の抗土圧側と露出側（抗土圧側と反対側）に
ＡＥ音センサー２５を設け、鉄道車両２３の荷重２４に
よる前記橋台２２の抗土圧側のひび割れ２２Ａに起因す
るＡＥ音をＡＥ音センサー２５で検知し、橋台２２の破
壊を探知することができる。In this embodiment, an AE sound sensor 25 is provided on an anti-earth pressure side and an exposed side (opposite to the anti-earth pressure side) of an abutment 22 which is an anti-earth pressure structure. The AE sound sensor 25 detects the AE sound caused by the crack 22A on the anti-earth pressure side of the 22 and can detect the destruction of the abutment 22.
【００２９】なお、ＡＥ音センサー２５による情報の処
理及び管理は第１実施例と同様であるので、ここでは説
明は省略する。The processing and management of information by the AE sound sensor 25 are the same as in the first embodiment, and a description thereof will be omitted.
【００３０】図３は本発明の第３実施例を示す基礎構造
物としての鉄道車両用トンネルの坑体（ボックスカルバ
ート）の破壊検知システムの説明図である。FIG. 3 is an explanatory view of a system for detecting the destruction of a pit (box culvert) of a tunnel for a railway vehicle as a substructure according to a third embodiment of the present invention.
【００３１】この図において、４１はボックスカルバー
ト（鉄道車両用トンネルの坑体）、４１Ａはボックスカ
ルバート４１の外面に入るひび割れ、４２は内壁側面、
４３はＡＥ音センサー（４ｃｈ）、４５はデータ処理・
管理装置、４６は出力送信機能を有する出力装置であ
る。In this figure, reference numeral 41 denotes a box culvert (a pit of a tunnel for a railway vehicle), 41A denotes a crack entering the outer surface of the box culvert 41, 42 denotes a side surface of the inner wall,
43 is an AE sound sensor (4ch), 45 is data processing
The management device 46 is an output device having an output transmission function.
【００３２】このように、ボックスカルバート４１の各
側面にはＡＥ音センサー（４ｃｈ）４３が配置されてお
り、ボックスカルバート４１内を通過する電気鉄道（図
示なし）の荷重により、ボックスカルバート４１の外面
に入るひび割れ４４Ａの位置とその程度をＡＥ音センサ
ー（４ｃｈ）４３により検知することができる。As described above, the AE sound sensor (4ch) 43 is disposed on each side of the box culvert 41, and the outer surface of the box culvert 41 is controlled by the load of the electric railway (not shown) passing through the inside of the box culvert 41. The position and the degree of the crack 44A that enters can be detected by the AE sound sensor (4ch) 43.
【００３３】なお、ＡＥ音センサー４３による情報の処
理及び管理は第１実施例と同様であるので、ここでは説
明は省略する。The processing and management of information by the AE sound sensor 43 are the same as in the first embodiment, and a description thereof will be omitted.
【００３４】図４は本発明にかかるボックスカルバート
上に鉄道車両の軌道が敷設される例を示す図である。FIG. 4 is a view showing an example in which a track of a railway vehicle is laid on a box culvert according to the present invention.
【００３５】図４に示すように、ＡＥ音センサー５１が
配置されるボックスカルバート５２上に鉄道車両５３の
軌道が敷設される。As shown in FIG. 4, a track of a railway vehicle 53 is laid on a box culvert 52 on which an AE sound sensor 51 is disposed.
【００３６】したがって、ボックスカルバート５２のひ
び割れ５２ＡをＡＥ音センサー５１によって検出するこ
とができる。Therefore, the crack 52A of the box culvert 52 can be detected by the AE sound sensor 51.
【００３７】図５は本発明にかかるトンネル内に鉄道車
両の軌道が敷設される例を示す図である。FIG. 5 is a diagram showing an example in which a railroad of a railway vehicle is laid in a tunnel according to the present invention.
【００３８】図５に示すように、ＡＥ音センサー６１が
配置されるトンネル６２内に鉄道車両６３の軌道が敷設
されており、トンネル６２のひび割れ６２ＡはＡＥ音セ
ンサー６１によって検出することができる。As shown in FIG. 5, a track of a railway vehicle 63 is laid in a tunnel 62 in which an AE sound sensor 61 is disposed, and a crack 62A of the tunnel 62 can be detected by the AE sound sensor 61.
【００３９】また、上記基礎構造物としては土構造物等
が含まれることは言うまでもない。Needless to say, the above-mentioned basic structure includes an earth structure and the like.
【００４０】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、そ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, and various modifications are possible based on the spirit of the present invention, and these are not excluded from the scope of the present invention.
【００４１】[0041]
【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.
【００４２】（Ａ）供用中の列車の荷重を活用し、ＡＥ
音センサーにより基礎構造物の損傷位置と損傷程度を探
知することができる。(A) AE utilizing the load of train in service
The sound sensor can detect the damage position and the damage degree of the substructure.
【００４３】（Ｂ）鉄道事業現場の実状を考慮して、地
盤中への導波棒の設置を行うことなく、フーチング表
面、または側面にＡＥ音センサーを設置して目視検査が
不可能な基礎構造物の損傷位置と損傷程度を探知するこ
とができる。(B) In consideration of the actual situation of the railway business site, without installing the waveguide rod in the ground, the AE sound sensor is installed on the surface or the side surface of the footing, and the visual inspection is impossible. The location and degree of damage to the structure can be detected.
【００４４】（Ｃ）地震、地盤の不同沈下等による基礎
の損傷状況を探知・監視し、重点的かつ効率的な構造物
の維持管理を行うことができる。(C) It is possible to detect and monitor the damage to the foundation due to an earthquake, uneven settlement of the ground, etc., and to perform focused and efficient maintenance of the structure.
【図１】本発明の第１実施例を示す基礎構造物としての
橋梁とその杭の破壊検知システムの説明図である。FIG. 1 is an explanatory view of a bridge as a substructure and a system for detecting the destruction of a pile thereof, showing a first embodiment of the present invention.
【図２】本発明の第２実施例を示す基礎構造物としての
橋梁とその杭の破壊検知システムの説明図である。FIG. 2 is an explanatory view of a bridge as a substructure and a destruction detection system for a pile thereof according to a second embodiment of the present invention.
【図３】本発明の第３実施例を示す基礎構造物としての
鉄道車両用トンネルの坑体（ボックスカルバート）の破
壊検知システムの説明図である。FIG. 3 is an explanatory view of a system for detecting the destruction of a pit (box culvert) of a tunnel for a railway vehicle as a substructure showing a third embodiment of the present invention.
【図４】本発明にかかるボックスカルバート上に鉄道車
両の軌道が敷設される例を示す図である。FIG. 4 is a diagram showing an example in which a track of a railway vehicle is laid on a box culvert according to the present invention.
【図５】本発明にかかるトンネル内に鉄道車両の軌道が
敷設される例を示す図である。FIG. 5 is a diagram showing an example in which a track of a railway vehicle is laid in a tunnel according to the present invention.
１ 橋梁 ２ 橋梁の杭 ２Ａ 橋梁の杭のひび割れ ３，２３，５３，６３ 鉄道車両 ４，２４ 鉄道車両の荷重 ５ 杭の破壊検知を行うＡＥ音センサー装置 ５Ａ〜５Ｄ ４チャンネル（４ｃｈ）ＡＥ音センサー ６ 外部情報 １０，３０，４５ データ・処理管理装置 １１ 中央処理装置 １２，１３ 入力インタフェース １４ 複数のメモリを有する記憶装置 １５ 出力インタフェース １６，３１，４６ 出力送信機能を有する出力装置 ２１ 橋 ２２ 橋台 ２２Ａ 橋台の杭土圧側のひび割れ ２５，５１，６１ ＡＥ音センサー ２６ 土構造物 ４１，５２ ボックスカルバート（鉄道車両用トンネ
ルの坑体） ４１Ａ，５２Ａ ボックスカルバートの外面に入るひ
び割れ ４２ 内壁側面 ４３ ＡＥ音センサー（４ｃｈ） ６２ トンネル ６２Ａ 鉄道のひび割れDESCRIPTION OF SYMBOLS 1 Bridge 2 Bridge pile 2A Bridge pile crack 3,23,53,63 Railway vehicle 4,24 Railway vehicle load 5 AE sound sensor device which detects pile destruction 5A-5D 4 channel (4ch) AE sound sensor Reference Signs List 6 external information 10, 30, 45 data / processing management device 11 central processing unit 12, 13 input interface 14 storage device having a plurality of memories 15 output interface 16, 31, 46 output device having output transmission function 21 bridge 22 abutment 22A Cracks on the pile soil pressure side of the abutment 25, 51, 61 AE sound sensor 26 Soil structure 41, 52 Box culvert (pit body of tunnel for railway vehicle) 41A, 52A Cracks entering the outer surface of the box culvert 42 Inner wall side surface 43 AE sound sensor (4ch) 62 tunnel 62A railway crack
───────────────────────────────────────────────────── フロントページの続き (72)発明者 羽矢 洋 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 斉藤 正人 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 史朗 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 三輪 滋 東京都千代田区三番町２番地飛島建設株式 会社内 (72)発明者 塩谷 智基 東京都千代田区三番町２番地飛島建設株式 会社内 Ｆターム(参考） 2G047 AA10 BA05 BC07 BC11 GG19 2G064 AA05 AB13 AB23 BA28 CC13 CC59 CC60 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hiroshi Haya 2-8-3 Hikaricho, Kokubunji-shi, Tokyo Inside the Railway Technical Research Institute (72) Masato Saito 2-8-8 Hikaricho, Kokubunji-shi, Tokyo 38 Within the Railway Technical Research Institute (72) Inventor Shiro Tanamura 2-8-8 Hikaricho, Kokubunji-shi, Tokyo 38 Within the Railway Technical Research Institute (72) Inventor Shigeru Miwa Tobishima Construction No. 2, Sanbancho, Chiyoda-ku, Tokyo In-house (72) Inventor Tomoki Shioya Tobishima Construction 2nd Sanbancho, Chiyoda-ku, Tokyo F-term (reference) 2G047 AA10 BA05 BC07 BC11 GG19 2G064 AA05 AB13 AB23 BA28 CC13 CC59 CC60
Claims (9)
サーを設け、前記橋梁上を通行する前記移動体の荷重に
よる前記橋梁の下部に設けられる杭の破壊に起因するＡ
Ｅ音を前記ＡＥ音センサーで検知し、前記橋梁の杭の破
壊を探知することを特徴とするＡＥ音による基礎構造物
の破壊探知システム。1. An AE sound sensor is provided on a bridge provided for the passage of a moving object, and the AE sound sensor is provided on the bridge provided at a lower portion of the bridge due to a load of the moving object passing on the bridge.
A destruction detection system for a substructure using an AE sound, wherein an E sound is detected by the AE sound sensor and a breakage of the bridge pile is detected.
の破壊探知システムにおいて、前記橋梁の杭の破壊探知
は、該杭の損傷位置と損傷程度を探知することを特徴と
するＡＥ音による基礎構造物の破壊探知システム。2. The fracture detection system for a substructure according to claim 1, wherein the failure detection of the pile of the bridge is performed by detecting a damage position and a degree of damage of the pile. Substructure destruction detection system.
る橋台の抗土圧側と反対側の露出側にＡＥ音センサーを
設け、前記移動体の荷重による前記橋台の抗土圧側の破
壊に起因するＡＥ音を前記ＡＥ音センサーで検知し、前
記橋台の破壊を探知することを特徴とするＡＥ音による
基礎構造物の破壊探知システム。3. An AE sound sensor is provided on an exposed side opposite to the anti-earth pressure side of an abutment, which is an anti-earth pressure structure used for traffic of a moving body, and the anti-earth pressure side of the abutment is destroyed by the load of the moving body. AE sound caused by the AE sound sensor is detected by the AE sound sensor, and the destruction of the abutment is detected.
の破壊探知システムにおいて、前記橋台の破壊探知は、
該橋台の損傷位置と損傷程度を探知することを特徴とす
るＡＥ音による基礎構造物の破壊探知システム。4. The system for detecting destruction of a substructure by AE sound according to claim 3, wherein the destruction of the abutment is detected by:
A system for detecting the destruction of a substructure using an AE sound, characterized by detecting a damage position and a degree of damage of the abutment.
構成する抗土圧構造物である内壁の抗土圧側と反対側の
露出側にＡＥ音センサーを設け、前記移動体の荷重によ
る前記坑体の破壊に起因するＡＥ音を前記ＡＥ音センサ
ーで検知し、前記坑体の破壊を探知することを特徴とす
る基礎構造物の破壊探知システム。5. An AE sound sensor is provided on an exposed side opposite to an anti-earth pressure side of an inner wall which is an anti-earth pressure structure constituting a mine body of a tunnel provided for traffic of a moving body, and the AE sound sensor is provided by a load of the moving body. A destruction detection system for a substructure, wherein an AE sound caused by destruction of a pit is detected by the AE sound sensor, and destruction of the pit is detected.
の破壊探知システムにおいて、前記坑体の破壊探知は、
該坑体の損傷位置と損傷程度を探知することを特徴とす
る基礎構造物の破壊探知システム。6. The destruction detection system for an underground structure using the AE sound according to claim 5, wherein the destruction detection of the pit is performed by:
A destruction detection system for a substructure, which detects a damage position and a degree of damage of the pit.
基礎構造物の破壊探知システムにおいて、前記ＡＥ音セ
ンサーは、道路事業現場の実状を考慮して、地盤中への
導波棒を設置せず、フーチング表面、側面又は地表面に
設置することを特徴とする基礎構造物の破壊探知システ
ム。7. The system according to claim 1, 3 or 5, wherein the AE sound sensor detects a waveguide rod into the ground in consideration of the actual condition of a road business site. A destruction detection system for a substructure, which is not installed but is installed on a footing surface, a side surface or a ground surface.
基礎構造物の破壊探知システムにおいて、前記ＡＥ音セ
ンサーは、設置面に４チャネルずつ設置することを特徴
とする基礎構造物の破壊探知システム。8. The destruction detection system for a substructure according to claim 1, 3 or 5, wherein the AE sound sensor is installed on each of four installation channels. Detection system.
基礎構造物の破壊探知システムにおいて、前記ＡＥ音セ
ンサーによる情報を、外部情報と対比することにより、
地震、地盤の不同沈下等による基礎構造物の損傷状況を
探知・監視することを特徴とする基礎構造物の破壊探知
システム。9. The system for detecting destruction of a substructure by AE sound according to claim 1, 3 or 5, wherein information obtained by the AE sound sensor is compared with external information.
A destruction detection system for substructures that detects and monitors damage to substructures due to earthquakes, uneven settlement of the ground, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001092918A JP2002286700A (en) | 2001-03-28 | 2001-03-28 | Fracture detection system for foundation structure by ae sound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001092918A JP2002286700A (en) | 2001-03-28 | 2001-03-28 | Fracture detection system for foundation structure by ae sound |
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| Publication Number | Publication Date |
|---|---|
| JP2002286700A true JP2002286700A (en) | 2002-10-03 |
Family
ID=18947313
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001092918A Withdrawn JP2002286700A (en) | 2001-03-28 | 2001-03-28 | Fracture detection system for foundation structure by ae sound |
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| Country | Link |
|---|---|
| JP (1) | JP2002286700A (en) |
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