JP2002062362A - Inspecting method for baking-work part - Google Patents
Inspecting method for baking-work partInfo
- Publication number
- JP2002062362A JP2002062362A JP2000253423A JP2000253423A JP2002062362A JP 2002062362 A JP2002062362 A JP 2002062362A JP 2000253423 A JP2000253423 A JP 2000253423A JP 2000253423 A JP2000253423 A JP 2000253423A JP 2002062362 A JP2002062362 A JP 2002062362A
- Authority
- JP
- Japan
- Prior art keywords
- embankment
- inspection
- electrode
- electrodes
- present
- 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.)
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、盛土された地盤に
おける盛土土工部の検査方法に関し、より詳細には盛土
土工部の電気的な検査方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for inspecting an embankment portion on an embankment, and more particularly to an electrical inspection method for an embankment portion.
【従来の技術】建設や、建築分野における多くの工法に
おいては、盛土土工が行われている。この盛土土工の品
質は、締固め度で規定されることが多く、一般には原位
置における密度試験、含水比、空気間隙率、飽和度、強
度・変形特性を用いて品質の検査が行われている。2. Description of the Related Art In many construction methods in the construction and construction fields, embankment is performed. The quality of this embankment is often specified by the degree of compaction. Generally, in-situ density tests, water content ratios, air porosity, saturation, strength / deformation characteristics are used to inspect quality. I have.
【０００２】具体的に上述した盛土の品質の代表的な検
査方法は、密度を測定する方法であり、この方法は施工
した盛土の表面から穴を掘り、取り出した土の重量を測
定し、掘った穴の容積を砂や水で置換して求め、両者の
値から盛土土工の密度を求める方法である。上述した検
査方法以外にも近年では、中性子や、ガンマ線の散乱を
利用したラジオアイソトープ（ＲＩ）を用いて密度を求
める方法が提案されている。A typical inspection method of the quality of the embankment described above is a method of measuring the density. In this method, a hole is dug from the surface of the embankment constructed, the weight of the soil taken out is measured, and the excavation is performed. In this method, the volume of the pit is determined by replacing it with sand or water, and the density of the embankment is calculated from the values of both. In recent years, in addition to the above-described inspection method, a method of obtaining a density using a radioisotope (RI) utilizing neutron or gamma ray scattering has been proposed.
【０００３】上述した方法のうち、例えば砂や水で置換
して密度を求める方法は直接的ではあるものの、施工し
た盛土を乱してしまうこと、測定時間に時間がかかるこ
と、という不都合がある。また、ＲＩにより求める方法
は、放射線源を地中に設置したり放射線源を地表面に配
置するというように、放射線源を取り扱う必要があり、
取扱う線源の強さによっては放射線取扱主任者といった
専門のものを選任しなければならない。また、放射線源
を地中に配置する場合には、盛土面に棒状の穴を設ける
必要があるなど、上述した従来の検査方法では、盛土を
乱してしまうことになり、多数の測定を行って精度を向
上させようとすると、それにともなって盛土土工部の品
質が低下することになる。[0003] Of the above-mentioned methods, for example, the method of obtaining the density by substituting with sand or water is straightforward, but has the disadvantage of disturbing the constructed embankment and taking a long time for measurement. . In addition, the method required by RI requires handling the radiation source, such as placing the radiation source in the ground or placing the radiation source on the ground surface,
Depending on the strength of the source being handled, a specialized one, such as the chief of radiation handling, must be appointed. In addition, when the radiation source is placed in the ground, it is necessary to provide a rod-shaped hole in the embankment surface. In the above-described conventional inspection method, the embankment is disturbed. In order to improve the precision, the quality of the embankment will decrease accordingly.
【０００４】[0004]
【０００５】上述した検査方法は、盛土の検査を行うこ
とはできるものの、測定時間がかかり、さらには非破壊
で検査を行うことができないため、盛土の全面の検査は
事実上不可能である。また、連続的に測定点を移動させ
て効率よく測定を行うこともできないという不都合があ
る。また、上述したように盛土土工部をポイント毎にサ
ンプリングして検査を行う従来の方法では、サンプルし
たポイント以外の部分における盛土土工部の品質が不明
で、サンプリングした部分以外での不具合が見過ごされ
るといった問題もあった。Although the above-described inspection method can inspect an embankment, it takes a long measurement time and cannot be inspected in a nondestructive manner, so that an inspection of the entire embankment is practically impossible. In addition, there is also a disadvantage that the measurement cannot be performed efficiently by continuously moving the measurement point. Also, as described above, in the conventional method of sampling and embedding the embankment portion for each point, the quality of the embankment portion in a portion other than the sampled point is unknown, and defects other than the sampled portion are overlooked. There was also a problem.
【０００６】[0006]
【課題を解決するための手段】一般に、一定強度の電流
を流した時の電流の流れ易さ、すなわち比抵抗値を測定
することにより、地盤の構造や土質を判断できることが
知られている。このような電流を流して測定を行う電気
探査法は、地盤に電流を流した時の比抵抗や電圧値を測
定して地盤の構造や土質の判断を行うために、これまで
多用されている技術である。In general, it is known that the structure and soil quality of the ground can be determined by measuring the easiness of current flow when a current of constant intensity flows, that is, the specific resistance value. The electric prospecting method that performs measurement by passing such a current has been frequently used so far to measure the specific resistance and the voltage value when the current is passed through the ground to determine the structure and soil characteristics of the ground. Technology.
【０００７】この電気探査法では、電極を地表面に設置
し電極間に電流を加えることによって測定を行うため、
広い範囲にわたって簡便に測定を行うことができる。ま
た、非破壊方法で地盤の構造を測定することも可能であ
る。そこで電気探査法を用いて盛土土工の検査を行うこ
とにより、非破壊方法により盛土部の検査を行うことを
可能とし、さらには、盛土土工部全面についても検査を
行うことを可能とする盛土土工の検査方法を提供でき
る。In this electric prospecting method, electrodes are placed on the ground surface, and measurement is performed by applying a current between the electrodes.
Measurement can be easily performed over a wide range. It is also possible to measure the structure of the ground by a non-destructive method. Therefore, the embankment can be inspected by the non-destructive method by conducting the inspection of the embankment using the electric prospecting method, and furthermore, the embankment can be inspected also on the entire embankment part. Can be provided.
【０００８】すなわち、本発明の請求項１の発明によれ
ば、盛土土工部に複数の検査用電極を設置して、盛土土
工部の電気特性を測定することにより該盛土土工部を検
査することを特徴とする盛土土工部の検査方法が提供で
きる。[0008] That is, according to the first aspect of the present invention, the embankment is inspected by installing a plurality of inspection electrodes on the embankment and measuring the electrical characteristics of the embankment. The method for inspecting an embankment section characterized by the following features can be provided.
【０００９】本発明の請求項２の発明によれば、前記検
査用電極は、転圧機に保持されていることを特徴とする
検査方法が提供できる。According to the invention of claim 2 of the present invention, there can be provided an inspection method characterized in that the inspection electrode is held by a rolling machine.
【００１０】本発明の請求項３の発明によれば、前記検
査用電極の位置をグローバル・ポジショニング・システ
ムまたはジオグラフィック・インフォメーション・シス
テムにより測定して前記盛土土工部の検査を２次元で行
うことを特徴とする検査方法が提供できる。According to the third aspect of the present invention, the position of the inspection electrode is measured by a global positioning system or a geographic information system, and the embankment is inspected two-dimensionally. Can be provided.
【００１１】本発明の請求項４の発明によれば、前記検
査用電極を、前記盛土土工部の地表部に隣接して配置す
ることを特徴とする検査方法が提供できる。According to the invention of claim 4 of the present invention, there can be provided an inspection method characterized in that the inspection electrode is arranged adjacent to the surface of the embankment.
【００１２】本発明の請求項５の発明によれば、前記検
査用電極を、前記盛土土工部の厚さの０．５倍〜２倍の
間隔で配置することを特徴とする検査方法が提供でき
る。According to a fifth aspect of the present invention, there is provided an inspection method, wherein the inspection electrodes are arranged at intervals of 0.5 to 2 times the thickness of the embankment. it can.
【００１３】本発明の請求項６の発明によれば、前記検
査用電極を、列として構成する、検査方法が提供でき
る。According to the invention of claim 6 of the present invention, it is possible to provide an inspection method in which the inspection electrodes are configured as a row.
【００１４】本発明の請求項７の発明によれば、前記列
として構成される前記検査用電極が、複数の異なった間
隔で配置される、検査方法が提供される。According to a seventh aspect of the present invention, there is provided an inspection method in which the inspection electrodes configured as the rows are arranged at a plurality of different intervals.
【００１５】本発明の請求項８の発明によれば、前記盛
土土工部は、土と土質改良材とを含む、検査方法が提供
できる。According to the invention of claim 8 of the present invention, it is possible to provide an inspection method in which the embankment section includes soil and a soil improvement material.
【００１６】[0016]
【発明の実施の形態】以下、本発明を図面に示した実施
例をもって説明する。図１は、本発明の盛土土工の検査
方法が適用されている盛土土工部１の断面を示してい
る。この盛土土工部は、盛土土工が行われるいかなる部
分にでも適用することができ、具体的には例えば廃棄物
最終処分場の法面や、底面において行われる土質遮水層
の施工の際に含まれる盛土土工部とすることができる。
図１に示された盛土土工部１は、地盤２上に盛土土工が
行われて形成されている。この盛土土工部は、静荷重、
衝撃または振動などを加えることにより、締固めて盛土
の密度を増加させて形成されている。このような盛土を
締固めるための方法としては従来用いられているいかな
る方法でも用いることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 shows a cross section of an embankment section 1 to which an embankment inspection method of the present invention is applied. This embankment section can be applied to any part where embankment is performed, and specifically includes, for example, the slope of a final waste disposal site or the construction of a soil impermeable layer performed at the bottom. Embankment section.
The embankment section 1 shown in FIG. 1 is formed by embankment on the ground 2. This embankment section has a static load,
It is formed by increasing the density of the embankment by compaction by applying impact or vibration. As a method for compacting such an embankment, any conventionally used method can be used.
【００１７】図１においては、盛土土工部１の地表部３
には、複数の検査用電極４が配置されているのが示され
ている。図１に示されたこの検査用電極４は、先端部５
が扁平に拡大されているのが示されている。しかしなが
ら本発明においては、特に図１に示される電極構造に限
定されるものではなく、種々の形状の検査用電極４を用
いることができる。また、検査用電極４を盛土に対して
深く差し込むと、盛土土工部１の層厚によっては盛土土
工部１の情報に加えて、地盤２の情報も含まれてしまう
ことになるので検査用電極４は、できるだけ地表部３に
隣接して配置されていることが好ましい。In FIG. 1, the ground surface 3 of the embankment 1
Shows that a plurality of test electrodes 4 are arranged. The inspection electrode 4 shown in FIG.
Is shown enlarged flat. However, in the present invention, the electrode structure is not particularly limited to the electrode structure shown in FIG. 1, and various shapes of test electrodes 4 can be used. Also, if the inspection electrode 4 is inserted deeply into the embankment, the information of the ground 2 may be included in addition to the information of the embankment part 1 depending on the layer thickness of the embankment part 1. 4 is preferably disposed as close to the ground surface 3 as possible.
【００１８】この検査用電極４の電極間隔ｄは、測定対
象である盛土土工部１の厚さと略等しい間隔とされてい
ることができる。また、この電極間隔ｄは、特に同じ間
隔の電極間隔で測定することが必要とされるわけではな
く、適切な盛土土工部１の検査を行うことができるので
あれば、電極間隔ｄは、作業性、盛土土工部１の状態な
どに応じて適宜設定することができる。具体的には、盛
土土工部１の厚さの０．５倍〜２倍まで電極間隔の異な
った検査用電極４を用いて、それぞれの電極間隔ｄにつ
いて測定を行い、深さ方向の分布についての情報を得つ
つ、盛土土工部１の検査を行うこともできる。The electrode interval d of the inspection electrode 4 can be set to be approximately equal to the thickness of the embankment 1 to be measured. The electrode interval d is not necessarily measured at the same electrode interval. If the appropriate embankment 1 can be inspected, the electrode interval d is determined by the work. It can be appropriately set according to the properties, the state of the embankment section 1, and the like. Specifically, using the inspection electrodes 4 having different electrode intervals from 0.5 to 2 times the thickness of the embankment section 1, measurement is performed for each electrode interval d, and the distribution in the depth direction is measured. Inspection of the embankment embankment 1 can be performed while obtaining the above information.
【００１９】また、この検査用電極４を用いた比抵抗測
定方法としては、従来知られている方法を用いることが
でき、具体的には２極法配置やウエンナー（Ｗｅｎｎｅ
ｒ）配置法といった４極法を用いることができる。図１
には、例えばウエンナー法を適用する場合の検査用電極
４の配置が示されている。また、任意の配置で測定を行
うことができる。図１を用いて検査方法を具体的に説明
すると、検査用電極４に電流計Ａから一定の電流Ｉを通
じる。このとき、電圧計Ｖに接続された電極４の間に
は、盛土土工部１を通して流れる電流Ｉに応じて電位差
Ｖｄが生じる。この電位差Ｖｄと、電流値Ｉとから比抵
抗ρａ（Ω・ｍ）を下記式を用いて算出する。As a method of measuring the specific resistance using the inspection electrode 4, a conventionally known method can be used, and specifically, a two-pole method arrangement, a Wenner method, and the like.
r) A quadrupole method such as an arrangement method can be used. FIG.
2 shows the arrangement of the inspection electrodes 4 when the Wenner method is applied, for example. Further, the measurement can be performed in an arbitrary arrangement. The inspection method will be specifically described with reference to FIG. 1. A constant current I is passed from the ammeter A to the inspection electrode 4. At this time, a potential difference Vd is generated between the electrodes 4 connected to the voltmeter V in accordance with the current I flowing through the embankment 1. And the potential difference V d, resistivity ρa and a current value I a (Ω · m) is calculated using the following equation.
【００２０】[0020]
【数１】 (Equation 1)
【００２１】このような測定方法により測定が行われる
比抵抗値は、盛土土工部１の条件が同一であれば、地盤
の密度に相関し、比抵抗の測定値から地盤の密度、締固
め度、透水係数などを推定することが可能となる。この
ような推定をより確実に行うためには、本発明の盛土土
工部の検査方法を適用する前に、用いる盛土材を用いて
密度、すなわち締固め度と比抵抗値、すなわち電圧値と
の関係を較正しておくことが好ましい。この際、締固め
度は、突固めによる土の締固め試験方法ＪＩＳＡ １２
１０により測定することができる。比抵抗値を用いるこ
とにより、電流値Ｉに依存せずに検査を行うことが可能
となるが、本発明においては、上述したように比抵抗値
を用いて検査を行うほか、電圧値を用いて測定すること
が妥当である場合には、電圧値をそのまま用いることも
可能である。The specific resistance measured by such a measuring method is correlated with the density of the ground if the conditions of the embankment section 1 are the same, and the density of the ground and the compaction degree are determined from the measured specific resistance. , Hydraulic conductivity and the like can be estimated. In order to perform such estimation more reliably, before applying the embankment inspection method of the present invention, using the embankment material to be used, the density, that is, the compaction degree and the specific resistance value, that is, the voltage value, It is preferable to calibrate the relationship. At this time, the compaction degree is determined by the compaction test method of soil by compaction according to JISA 12
10 can be measured. By using the specific resistance value, the inspection can be performed without depending on the current value I. In the present invention, in addition to performing the inspection using the specific resistance value as described above, using the voltage value If it is appropriate to perform the measurement by using the voltage value, the voltage value can be used as it is.
【００２２】本発明の盛土土工部の検査方法は、上述し
たように盛土土工部１を深く掘削する必要がないため、
盛土土工部１の全体にわたって、非破壊で、かつ迅速に
検査を行うことが可能となる。また。電気探査法に用い
る測定機材は、簡便な装置で測定時間が短いので、電
極、電源、測定機器等からなる測定装置をシステム化す
ることにより、容易に検査を行うことができ、現場にお
ける検査に好適に用いることができる。In the method for inspecting an embankment section according to the present invention, it is not necessary to excavate the embankment section 1 as described above.
A nondestructive and quick inspection can be performed over the entire embankment section 1. Also. Since the measuring equipment used for the electric prospecting method is a simple device and the measuring time is short, it is possible to easily carry out the inspection by systematizing the measuring device consisting of electrodes, power supply, measuring equipment, etc. It can be suitably used.
【００２３】図２には、本発明において用いることがで
きる電極配置を例示した図である。図２中、電流を流す
ための電極をＣｎ（ｎは、自然数）で示し、電位を測定
するための電極をＰｎ（ｎは、自然数）で示している。
図２（ａ）においては、電位を測定するための電極を横
切る形で電流を通じるための電極が配置されており、電
位Ｖ１、Ｖ２、Ｖ３といった複数の電位を同時に測定で
きる構成とされている。また、図２（ｂ）に示した電極
配置においては、電流を供給するための電極Ｃｎと、電
位を測定するための電極Ｐｎとが平行に同一数で配置さ
れており、例えば、Ｉ１、Ｉ２の切換えを行いつつ、電
位Ｖ１、Ｖ２を同時に測定することができるようにされ
ている。また、Ｉ１、Ｉ２を同時電流を流し、Ｖ１、Ｖ
２の電位の傾きを測定することも可能である。FIG. 2 is a diagram illustrating an electrode arrangement that can be used in the present invention. In FIG. 2, an electrode for passing a current is indicated by Cn (n is a natural number), and an electrode for measuring a potential is indicated by Pn (n is a natural number).
In FIG. 2A, an electrode for passing a current across the electrode for measuring a potential is arranged, and a configuration capable of simultaneously measuring a plurality of potentials such as potentials V 1 , V 2 , and V 3 is provided. Have been. Further, in the electrode arrangement shown in FIG. 2B, the same number of electrodes Cn for supplying current and the same number of electrodes Pn for measuring potential are arranged in parallel, for example, I 1 , The potentials V 1 and V 2 can be simultaneously measured while switching I 2 . Simultaneous currents flow through I 1 and I 2 , and V 1 and V 2
It is also possible to measure the slope of the potential of No. 2 .
【００２４】さらに、本発明において用いることができ
る検査用電極４の配置を図３に示す。図３（ａ）に示す
電極配置においては、電流を供給するための電極Ｃｎ
と、電位を測定するための電極Ｐｎとが一列に配置され
ていて、電流計Ａおよび電位計Ｖをそれぞれ切換えて、
測定が可能となるようにされている。図３（ｂ）に示す
電極配置では、電流を通じるための電極と電位を測定す
るための電極とが一列に配置されていて、２つの電極Ｃ
１、Ｃ２の間に、電位測定用の電極Ｐｎが配置されてい
る。この電極配置では、図に示された互いに異なった電
位測定電極Ｐｎの間の電位Ｖ１、Ｖ２、Ｖ３といった複
数の電位を同時に測定することができる。FIG. 3 shows an arrangement of the test electrodes 4 which can be used in the present invention. In the electrode arrangement shown in FIG. 3A, an electrode Cn for supplying a current is provided.
And the electrodes Pn for measuring the potential are arranged in a line, and the ammeter A and the electrometer V are switched respectively,
The measurement is made possible. In the electrode arrangement shown in FIG. 3B, electrodes for passing a current and electrodes for measuring a potential are arranged in a line, and two electrodes C are arranged.
During the 1, C 2, are arranged electrode Pn for potential measurement. In this electrode arrangement, a plurality of potentials such as potentials V 1 , V 2 , and V 3 between different potential measurement electrodes Pn shown in the figure can be measured simultaneously.
【００２５】図４には、本発明の盛土土工部の検査方法
の第２の実施例を示す。図４に示された本発明の第２の
実施例においては、本発明の盛土土工部の検査方法に用
いる検査用電極４などの測定機材を台車、転圧機といっ
た車両に搭載して、移動させつつ測定を行うことを可能
とするものである。本発明の第２の実施例によれば、移
動または締固め工を行いつつ、容易に多くの測定箇所に
おける測定を行うことができ、従来、施工領域の少数の
箇所での測定結果に基づくポイント的な管理であった盛
土土工部１の締固め管理を、施工面の多数の測定点の測
定結果に基づいて行うことを可能とし、より盛土土工部
１の品質管理を完全に行うことができる。FIG. 4 shows a second embodiment of the method for inspecting an embankment section according to the present invention. In the second embodiment of the present invention shown in FIG. 4, measuring equipment such as an inspection electrode 4 used in the method for inspecting an embankment section of the present invention is mounted on a vehicle such as a bogie or a compactor and moved. This makes it possible to perform measurement while measuring. According to the second embodiment of the present invention, it is possible to easily perform measurement at many measurement points while performing movement or compaction work. Conventionally, points based on measurement results at a small number of points in the construction area are used. Compaction management of the embankment part 1 which was a general management can be performed based on the measurement results of a large number of measurement points on the construction surface, and the quality control of the embankment part 1 can be more completely performed. .
【００２６】図４に示す実施例においては、測定機材が
例えばタイヤローラといった転圧機６と連動され、連続
的に測定を行っているところが示されている。図４に示
すように検査用電極４は、転圧機６の後部に連結された
上下動可能なステー７の先端部に連結されていて、この
ステー７は、例えば油圧ジャッキ８といった部材によ
り、一定の圧力で検査用電極４を地表部３に接するよう
に保持させている。また、さらに検査用電極４の地表面
３との接触性を良好にすべく、検査用電極４と、ステー
７との間に図示しないダンパが設けられていてもよい。
転圧機６の移動に際しては、必要に応じてステー７を矢
線Ａの方向に持ち上げて、移動の際に検査用電極４を保
護するようにされていてもよい。図４に示した本発明の
第２の実施例によれば、転圧機６のオペレータ自身が締
固め工を行いつつ容易に転圧効果を判断することができ
る。In the embodiment shown in FIG. 4, it is shown that the measuring equipment is linked to a rolling machine 6 such as a tire roller, for example, to perform continuous measurement. As shown in FIG. 4, the inspection electrode 4 is connected to a tip of a vertically movable stay 7 connected to the rear part of the rolling machine 6, and the stay 7 is fixed by a member such as a hydraulic jack 8. The inspection electrode 4 is held so as to be in contact with the ground surface portion 3 with the pressure of (1). Further, a damper (not shown) may be provided between the inspection electrode 4 and the stay 7 in order to further improve the contact property of the inspection electrode 4 with the ground surface 3.
At the time of movement of the compactor 6, the stay 7 may be lifted in the direction of arrow A as necessary to protect the inspection electrode 4 at the time of movement. According to the second embodiment of the present invention shown in FIG. 4, the operator of the compactor 6 can easily determine the compaction effect while performing compaction work.
【００２７】図５は、本発明の第２の実施例において用
いることができる検査用電極４の配置を示した平面図で
ある。図５（ａ）では、検査用電極４は、転圧機６に保
持されたステー７により保持された保持部材９に一列と
して配置されている。また、図５（ｂ）では、転圧機６
に保持されたステー７により保持された２個の保持部材
９ａ，９ｂに複数の列として配置されており、それぞれ
の保持部材９ａ，９ｂの間において異なった間隔として
配置されているのが示されている。FIG. 5 is a plan view showing the arrangement of test electrodes 4 which can be used in the second embodiment of the present invention. In FIG. 5A, the inspection electrodes 4 are arranged in a row on a holding member 9 held by a stay 7 held by a roller 6. Further, in FIG.
The two holding members 9a and 9b held by the stay 7 held at the same position are arranged as a plurality of rows, and are arranged at different intervals between the respective holding members 9a and 9b. ing.
【００２８】図５では、説明のため、保持部材９を２個
として示しているが、検査用電極４を取り付けるための
保持部材９は、転圧機６に対して２個以上保持させるこ
ともできる。また、図５においては、保持部材９を転圧
機６の進行方向に対して直交するように配置しているの
が示されているが、適切な測定を行うことができる限
り、保持部材９は、進行方向に沿って１個またはそれ以
上の列として配置することも可能である。In FIG. 5, two holding members 9 are shown for the sake of explanation. However, two or more holding members 9 for attaching the inspection electrode 4 can be held by the rolling press 6. . Further, FIG. 5 shows that the holding member 9 is disposed so as to be orthogonal to the traveling direction of the compactor 6, but as long as appropriate measurement can be performed, the holding member 9 is , One or more rows along the direction of travel.
【００２９】さらに、本発明においては、転圧機６に対
して検査用電極４を保持させる構成においては、図２、
図３に示した電極構成を用いることもできるし、矩形ま
たは平行四辺形の頂点に電極が配置されるようにして、
検査用電極４を構成することもできる。さらには、転圧
機６のタイヤの表面にプレート状、平板状といった検査
用電極４を保持させ、特に上述したステー７と、保持部
材９とにより検査用電極４を保持させることがないよう
にすることもできる。Further, according to the present invention, in the configuration in which the inspection electrode 4 is held by the roller 6, FIG.
The electrode configuration shown in FIG. 3 may be used, or the electrodes may be arranged at the vertices of a rectangle or a parallelogram.
The inspection electrode 4 can also be configured. Further, the inspection electrode 4 having a plate shape or a flat plate shape is held on the surface of the tire of the rolling machine 6, so that the inspection electrode 4 is not particularly held by the stay 7 and the holding member 9 described above. You can also.
【００３０】図６には、本発明の第３の実施例を示す。
本発明の第３の実施例においては、検査用電極４の位置
を人工衛星１０を用いたジオグラフィック・インフォメ
ーション・システム（ＧＩＳ）や、グローバル・ポジシ
ョニング・システム（ＧＰＳ）を用いる高精度な３次元
位置表示システムにより検出する。このようにＧＰＳま
たはＧＩＳと組み合わせて検査を行うことにより盛土土
工部１の締固め度、すなわち品質分布を容易かつ迅速に
２次元的および各層毎に得ることもでき、より良好な品
質の盛土土工部１を得ることが可能となる。FIG. 6 shows a third embodiment of the present invention.
In the third embodiment of the present invention, the position of the inspection electrode 4 is determined by using a geographic information system (GIS) using an artificial satellite 10 or a highly accurate three-dimensional system using a global positioning system (GPS). It is detected by the position display system. By performing the inspection in combination with GPS or GIS in this way, the compaction degree of the embankment portion 1, that is, the quality distribution can be easily and quickly obtained two-dimensionally and for each layer, and the embankment of better quality can be obtained. Part 1 can be obtained.
【００３１】また、本発明の盛土土工部の検査方法は、
土と、セメントやベントナイトといった土質改良材を加
えて盛土土工を行う場合には、他の測定値との組み合わ
せて混合程度、すなわち混合ムラの判定を同時に行うこ
とも可能であるし、転圧機６により移動する電極の位置
をＧＰＳ、ＧＩＳなどにより測定しつつ２次元的な品質
検査を行うことも可能である。The method for inspecting an embankment embankment according to the present invention comprises:
When embankment is performed by adding soil and a soil improvement material such as cement or bentonite, it is possible to simultaneously determine the degree of mixing, that is, mixing unevenness, in combination with other measured values. It is also possible to perform a two-dimensional quality inspection while measuring the position of the moving electrode by GPS, GIS, or the like.
【００３２】[0032]
【発明の効果】上述したように、本発明によれば、非破
壊で、かつ迅速に検査を行うことが可能で、現場におけ
る検査に適し、多数の測定点からの測定結果に基づいて
盛土土工部の高精度な締固め管理を可能とする検査方法
が提供できる。As described above, according to the present invention, nondestructive and quick inspection can be performed, suitable for inspection on site, and embankment based on measurement results from a large number of measurement points. An inspection method that enables high-precision compaction management of a part can be provided.
【００３３】これまで、本発明を図面に示した実施例に
基づいて説明してきたが、本発明は、上述した実施例に
限定されるものではなく、これまで知られたいかなる盛
土土工部の施工方法、比抵抗測定方法、電圧測定方法、
電極形状、測定電流の交流・直流といった電流の形態等
と組み合わせて用いることが可能であることはいうまで
もないことである。Although the present invention has been described with reference to the embodiment shown in the drawings, the present invention is not limited to the above-described embodiment, but is applicable to any known embankment embankment. Method, resistivity measurement method, voltage measurement method,
It goes without saying that it can be used in combination with the electrode shape, the form of current such as AC or DC of the measurement current, and the like.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の検査方法の第１の実施例における盛土
土工部および検査用電極の配置を示した断面図。FIG. 1 is a sectional view showing the arrangement of an embankment section and an electrode for inspection in a first embodiment of the inspection method of the present invention.
【図２】本発明において用いることができる検査用電極
の配置を示した図。FIG. 2 is a diagram showing an arrangement of test electrodes that can be used in the present invention.
【図３】本発明において用いることができる検査用電極
の配置を示した図。FIG. 3 is a diagram showing an arrangement of inspection electrodes that can be used in the present invention.
【図４】本発明の検査方法の第２の実施例を示した図。FIG. 4 is a diagram showing a second embodiment of the inspection method of the present invention.
【図５】本発明の第２の実施例に用いられる検査用電極
の配置を示した平面図。FIG. 5 is a plan view showing an arrangement of test electrodes used in a second embodiment of the present invention.
【図６】本発明の検査方法の第３の実施例を示した図。FIG. 6 is a diagram showing a third embodiment of the inspection method of the present invention.
１…盛土土工部 ２…地盤 ３…地表部 ４…検査用電極 ５…先端部 ６…転圧機 ７…ステー ８…油圧ジャッキ ９…保持部材 １０…人工衛星 Ｉ…電流 Ａ…電流計 Ｖ…電圧計 Ｖｄ…電位差 ｄ…電極間隔 DESCRIPTION OF SYMBOLS 1 ... Embankment part 2 ... Ground 3 ... Ground surface part 4 ... Inspection electrode 5 ... Tip part 6 ... Roller 7 ... Stay 8 ... Hydraulic jack 9 ... Holding member 10 ... Artificial satellite I ... Current A ... Ammeter V ... Voltage Total Vd: Potential difference d: Electrode spacing
フロントページの続き (72)発明者 萩谷 宏三 東京都港区虎ノ門一丁目20番10号 西松建 設株式会社内 (72)発明者 平岡 博明 東京都港区虎ノ門一丁目20番10号 西松建 設株式会社内 (72)発明者 田中 勉 東京都港区虎ノ門一丁目20番10号 西松建 設株式会社内 (72)発明者 金丸 信一 東京都港区虎ノ門一丁目20番10号 西松建 設株式会社内 (72)発明者 酒井 幸雄 東京都千代田区九段北１丁目11番５号 基 礎地盤コンサルタンツ株式会社内 (72)発明者 三木 茂 東京都千代田区九段北１丁目11番５号 基 礎地盤コンサルタンツ株式会社内 Ｆターム(参考） 2D043 AA00 AB00 AC01 2G060 AA14 AA20 AE40 AF08 AG04 EA03 EA04 EA06 HC10 HE10Continued on the front page (72) Inventor Kozo Hagiya 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Co., Ltd. (72) Inventor Hiroaki Hiraoka 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Co., Ltd. (72) Inventor Tsutomu Tanaka 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Incorporated (72) Inventor Shinichi Kanamaru 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Inside the company (72) Inventor Yukio Sakai 1-11-5 Kudankita, Chiyoda-ku, Tokyo Base Foundation Consultants Co., Ltd. (72) Inventor Shigeru Miki 1-11-5 Kudankita, Chiyoda-ku, Tokyo Base foundation Consultants Co., Ltd. F term (reference) 2D043 AA00 AB00 AC01 2G060 AA14 AA20 AE40 AF08 AG04 EA03 EA04 EA06 HC10 HE10
Claims (8)
て、盛土土工部の電気特性を測定することにより該盛土
土工部を検査することを特徴とする盛土土工部の検査方
法。1. A method for inspecting an embankment part, wherein a plurality of inspection electrodes are installed in the embankment part, and the electric characteristics of the embankment part are measured to inspect the embankment part.
いることを特徴とする請求項１に記載の検査方法。2. The inspection method according to claim 1, wherein the inspection electrode is held by a compactor.
ジショニング・システムまたはジオグラフィック・イン
フォメーション・システムにより測定して前記盛土土工
部の検査を２次元で行うことを特徴とする請求項１また
は２に記載の検査方法。3. The method according to claim 1, wherein the position of the inspection electrode is measured by a global positioning system or a geographic information system, and the embankment is inspected two-dimensionally. Inspection method described.
表部に隣接して配置することを特徴とする請求項１〜３
のいずれか１項に記載の検査方法。4. The method according to claim 1, wherein the inspection electrode is disposed adjacent to a surface of the embankment.
The inspection method according to any one of the above items.
さの０．５倍〜２倍の間隔で配置することを特徴とする
請求項１〜４のいずれか１項に記載の検査方法。5. The inspection according to claim 1, wherein the inspection electrodes are arranged at intervals of 0.5 to 2 times the thickness of the embankment. Method.
求項１〜５のいずれか１項に記載の検査方法。6. The inspection method according to claim 1, wherein the inspection electrodes are configured as a row.
が、複数の異なった間隔で配置される、請求項６に記載
の検査方法。7. The inspection method according to claim 6, wherein the inspection electrodes configured as the rows are arranged at a plurality of different intervals.
含む、請求項１〜７のいずれか１項に記載の検査方法。8. The inspection method according to claim 1, wherein the embankment section includes soil and a soil improvement material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000253423A JP3416908B2 (en) | 2000-08-24 | 2000-08-24 | Inspection method of embankment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000253423A JP3416908B2 (en) | 2000-08-24 | 2000-08-24 | Inspection method of embankment |
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| Publication Number | Publication Date |
|---|---|
| JP2002062362A true JP2002062362A (en) | 2002-02-28 |
| JP3416908B2 JP3416908B2 (en) | 2003-06-16 |
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ID=18742522
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|---|---|---|---|
| JP2000253423A Expired - Fee Related JP3416908B2 (en) | 2000-08-24 | 2000-08-24 | Inspection method of embankment |
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| JP2007517185A (en) * | 2003-06-13 | 2007-06-28 | アプレラ コーポレイション | Electrochemiluminescence electrode |
| KR101242681B1 (en) * | 2010-08-26 | 2013-03-12 | 고려대학교 산학협력단 | Apparatus for measuring relative density of embankment and method for measuring relative density of embankment using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007517185A (en) * | 2003-06-13 | 2007-06-28 | アプレラ コーポレイション | Electrochemiluminescence electrode |
| KR101242681B1 (en) * | 2010-08-26 | 2013-03-12 | 고려대학교 산학협력단 | Apparatus for measuring relative density of embankment and method for measuring relative density of embankment using the same |
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| JP2019138732A (en) * | 2018-02-08 | 2019-08-22 | 鹿島建設株式会社 | Soil measurement device and method |
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| JP2021032642A (en) * | 2019-08-21 | 2021-03-01 | 一般財団法人電力中央研究所 | Buried steel material detection device, buried steel material detection method and buried steel material detection program |
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