JP6384866B2 - Model sample preparation device for buried environment member model for evaluating the behavior of buried environment field of underground isolation member - Google Patents

Model sample preparation device for buried environment member model for evaluating the behavior of buried environment field of underground isolation member Download PDF

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JP6384866B2
JP6384866B2 JP2014224653A JP2014224653A JP6384866B2 JP 6384866 B2 JP6384866 B2 JP 6384866B2 JP 2014224653 A JP2014224653 A JP 2014224653A JP 2014224653 A JP2014224653 A JP 2014224653A JP 6384866 B2 JP6384866 B2 JP 6384866B2
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壮志 西本
壮志 西本
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Central Research Institute of Electric Power Industry
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    • YGENERAL 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
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    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Description

本発明は、廃棄物等の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料を作製するための作製装置に関する。   The present invention relates to a production apparatus for producing a model sample of a buried environment member model for evaluating the behavior of a buried environment field of a ground isolation member such as waste.

放射性廃棄物を地下深部の岩盤中に埋設処分する処分施設が知られている。放射性廃棄物を埋設処分する施設では、放射性廃棄物が容器に密閉されて地中隔離部材とされ、地中隔離部材が地下数百メートルの岩盤に埋設されている。   Disposal facilities that bury radioactive waste in bedrock deep underground are known. In a facility where radioactive waste is buried and buried, the radioactive waste is sealed in a container as a ground isolation member, and the ground isolation member is buried in a bedrock several hundred meters underground.

地中隔離部材は、放射性廃棄物が格納容器に密閉され、格納容器の周囲に難透水層を構築するために、透水性が極めて低いベントナイト系の材料、例えば、ベントナイトの緩衝材、もしくは、ベントナイトと砂を混合した緩衝材で格納容器が包まれて構成されている(例えば、特許文献1)。   The underground isolation member is a bentonite-based material, for example, a bentonite buffer material or a bentonite, in which radioactive waste is sealed in the containment vessel and a poorly permeable layer is constructed around the containment vessel. The storage container is wrapped with a cushioning material in which sand and sand are mixed (for example, Patent Document 1).

地中隔離部材は、廃棄物の発熱による緩衝材や岩盤の変形、地下水の影響、土圧による岩盤の変形等、熱、水、応力の複合的な現象の影響を受けることになる。このため、地中隔離部材は、長年の隔離により埋設環境が変化する。   The ground isolation member is affected by combined phenomena of heat, water, and stress, such as deformation of buffer material and rock mass due to heat generation of waste, influence of groundwater, deformation of rock mass due to earth pressure, etc. For this reason, the underground environment of the underground isolation member changes due to isolation for many years.

長期に亘り地中隔離部材を安定して埋設するためには、熱、水、応力の相互作用の影響を考慮して相当の長期に亘り埋設環境の評価を行い地中隔離部材の挙動を評価する必要がある。この場合、模型試料に地中隔離部材を収容して埋設環境部材模型とし、埋設環境部材模型により埋設環境の変化等を評価することが考えられている。   In order to stably embed underground isolation members over a long period of time, the effects of the interaction of heat, water, and stress are taken into account, and the behavior of the underground isolation member is evaluated by evaluating the embedded environment for a considerable period of time. There is a need to. In this case, it is considered that a ground isolation member is accommodated in a model sample to form a buried environment member model, and a change in the buried environment is evaluated by the buried environment member model.

埋設環境部材模型の模型試料としては、処分孔を考慮して土圧計や歪ゲージ等を備えた模型が考えられる。しかし、地中隔離部材は、坑道を伴った処分孔に収容されることがあり、また、坑道を伴った複数の処分孔に収容されることもある。このため、埋設環境部材模型の模型試料としても、坑道を伴った処分孔を模擬した物が必要となる。   As a model sample of the buried environment member model, a model equipped with a soil pressure gauge, a strain gauge, or the like in consideration of the disposal hole can be considered. However, the underground isolation member may be accommodated in a disposal hole with a mine shaft, or may be accommodated in a plurality of disposal holes with a mine shaft. For this reason, as a model sample of the buried environment member model, a model simulating a disposal hole with a mine shaft is required.

処分孔だけを備えた埋設環境部材模型の模型試料を作製する場合、通常のコアドリルを用いて作製することができる。坑道と処分孔を備えた埋設環境部材模型の模型試料を作製する場合は、長尺の坑道に相当する孔と、坑道に直交して連続して設けられる処分孔に相当する孔とを作る必要がある。しかし、埋設環境部材模型の模型試料は小型であり、坑道に相当する孔、処分孔に相当する孔は小径の孔となる。   When a model sample of a buried environment member model having only a disposal hole is manufactured, it can be manufactured using a normal core drill. When making a model sample of a buried environmental member model with a mine shaft and a disposal hole, it is necessary to create a hole corresponding to a long mine shaft and a hole corresponding to a disposal hole continuously provided perpendicular to the mine shaft. There is. However, the model sample of the buried environment member model is small, and the hole corresponding to the tunnel and the hole corresponding to the disposal hole are small-diameter holes.

このため、小径の長い孔と、長い穴に直交して連続して設けられる小径の短い孔とを作製することは非常に困難であり、坑道に相当する孔と処分孔に相当する孔とを備えた埋設環境部材模型の模型試料は容易に実現していないのが現状である。   For this reason, it is very difficult to produce a long hole with a small diameter and a short hole with a small diameter provided continuously perpendicular to the long hole, and a hole corresponding to a tunnel and a hole corresponding to a disposal hole are formed. The model of the embedded environment member model provided is not easily realized.

特開2003―211113号公報JP 2003-211113 A

本発明は上記状況に鑑みてなされたもので、小径の長い孔である坑道に相当する孔と、長い孔に直交して連続して設けられる小径の短い孔である処分孔に相当する孔とを備えた埋設環境部材模型の模型試料が作製できる、地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置を提供することを目的とする。   The present invention has been made in view of the above situation, a hole corresponding to a mine shaft that is a long hole having a small diameter, and a hole corresponding to a disposal hole that is a short hole having a small diameter provided continuously perpendicular to the long hole. It is an object of the present invention to provide an apparatus for producing a model sample of a buried environment member model for evaluating the behavior of a buried environment field of a ground isolation member, which can produce a model sample of a buried environment member model including

上記目的を達成するための請求項1に係る本発明の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置は、一端面から他端面に貫通孔が貫通している岩盤に相当する模型試料に対し、前記貫通孔に交差する方向に対し、前記貫通孔に連続する処分孔を作製して埋設環境部材模型の模型試料を作製する装置であり、前記模型試料を保持する保持部材と、前記保持部材に保持された前記模型試料の前記貫通孔に貫通して挿入される支持アーム部材と、前記支持アーム部材の端部を支持する上下支持ガイドと、前記支持アーム部材に設けられ、前記貫通孔に対して処分孔を掘削する掘削工具と、前記掘削工具を回転駆動させる回転駆動手段と、前記掘削工具を掘削方向に移動させる掘削移動手段とを備えたことを特徴とする。   According to the first aspect of the present invention for achieving the above object, there is provided a device for producing a model sample of a buried environment member model for evaluating the behavior of a buried environment field of a ground isolation member according to the present invention. Is a device for producing a model sample of a buried environmental member model by creating a disposal hole continuous to the through hole, in a direction intersecting the through hole, for a model sample corresponding to a bedrock through which A holding member that holds the model sample, a support arm member that is inserted through the through hole of the model sample held by the holding member, and an upper and lower support guide that supports an end of the support arm member; An excavation tool provided on the support arm member for excavating a disposal hole with respect to the through-hole, a rotation driving means for rotating the excavation tool, and an excavation moving means for moving the excavation tool in the excavation direction. Prepared The features.

請求項1に係る本発明では、模型試料の貫通孔に支持アーム部材を挿入し、掘削工具を回転駆動させて掘削方向に移動させることで、貫通孔に連続する処分孔を掘削することができる。   In the present invention according to claim 1, a disposal hole continuous to the through hole can be excavated by inserting the support arm member into the through hole of the model sample and rotating the excavating tool to move in the excavating direction. .

このため、小径の長い孔である坑道に相当する孔と、長い孔に直交して連続して設けられる小径の短い孔である処分孔に相当する孔とを備えた埋設環境部材模型の模型試料が作製できる。   Therefore, a model sample of a buried environmental member model having a hole corresponding to a tunnel having a long hole with a small diameter and a hole corresponding to a disposal hole being a short hole with a small diameter provided continuously perpendicular to the long hole. Can be made.

そして、請求項2に係る本発明の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置は、請求項1に記載の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置において、前記回転駆動手段は、前記模型試料の前記貫通孔の外側の前記支持アーム部材に設けられる駆動モータと、前記駆動モータの駆動軸と前記掘削工具の回転軸とを連結する伝達ベルトとを有していることを特徴とする。   And the preparation apparatus of the model sample of the embedded environment member model for performing the behavior evaluation of the embedded environment field of the underground isolation member of the present invention according to claim 2 is the embedded environment of the underground isolation member according to claim 1 In an apparatus for producing a model sample of an embedded environmental member model for performing field behavior evaluation, the rotation driving means includes a drive motor provided on the support arm member outside the through hole of the model sample, and the drive motor And a transmission belt for connecting the drive shaft and the rotary shaft of the excavating tool.

請求項2に係る本発明では、模型試料の貫通孔の外側の支持アーム部材に設けられた駆動モータにより、伝達ベルトを介して掘削工具を駆動して処分孔を掘削する。   In the present invention according to claim 2, the disposal hole is excavated by driving the excavation tool via the transmission belt by the drive motor provided on the support arm member outside the through hole of the model sample.

また、請求項3に係る本発明の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置は、請求項1もしくは請求項2に記載の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置において、前記掘削移動手段は、前記上下支持ガイドに昇降自在に支持されると共に、前記支持アーム部材が取り付けられ、雌ねじ部が形成された上下ブロックと、前記上下ブロックの雌ねじ部に螺合し、前記上下支持ガイドに沿って上下に延びて回転自在に支持されるねじロッドと、前記ねじロッドを回転させることで前記支持アーム部材を昇降させ、前記掘削工具を掘削方向に移動させることを特徴とする。   An apparatus for producing a model sample of a buried environment member model for evaluating the behavior of the buried environment field of the underground isolation member according to claim 3 is the ground isolation according to claim 1 or 2. In an apparatus for producing a model sample of a buried environment member model for evaluating the behavior of a buried environment field of a member, the excavation moving means is supported by the vertical support guide so as to be movable up and down, and the support arm member is attached. An upper and lower block formed with a female thread part, a threaded rod threadedly engaged with the female thread part of the upper and lower block, extending vertically along the upper and lower support guide, and rotating the threaded rod The support arm member is moved up and down to move the excavation tool in the excavation direction.

請求項3に係る本発明では、ねじロッドを回転させることで支持アーム部材を昇降させ、掘削工具を掘削方向に移動させて処分孔を掘削する。   In the present invention according to claim 3, the support arm member is moved up and down by rotating the screw rod, and the excavation tool is moved in the excavation direction to excavate the disposal hole.

また、請求項4に係る本発明の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置は、請求項3に記載の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置において、前記上下支持ガイド、前記上下ブロック、前記ねじロッドは、前記支持アーム部材の両端にそれぞれ備えられ、前記それぞれのねじロッドを連動して回転させるタイミングベルトが備えられていることを特徴とする。   An apparatus for producing a model sample of a buried environment member model for evaluating the behavior of the buried environment field of the underground isolation member according to claim 4 is the buried environment of the underground isolation member according to claim 3. In an apparatus for preparing a model sample of a buried environment member model for evaluating a field behavior, the upper and lower support guides, the upper and lower blocks, and the screw rods are respectively provided at both ends of the support arm member, and the respective screw rods And a timing belt that rotates the motor in conjunction with each other.

請求項4に係る本発明では、支持アーム部材の両端にそれぞれ備えられたねじロッドを、タイミングベルトを介して連動して回転させて上下ブロック(上下支持ガイド)を昇降させるので、上下支持ガイドが長尺であってもスムーズに昇降させて掘削工具を掘削方向に移動させる。それぞれ備えられたねじロッドを個別に調整することで、上下支持ガイドの水平状態を調整することができる。   In the present invention according to claim 4, since the upper and lower blocks (upper and lower support guides) are moved up and down by rotating the screw rods respectively provided at both ends of the support arm member via the timing belt, the upper and lower support guides Even if it is long, the excavating tool is moved up and down smoothly and moved in the excavating direction. The horizontal state of the upper and lower support guides can be adjusted by individually adjusting the screw rods provided.

また、請求項5に係る本発明の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置は、請求項1から請求項4のいずれか一項に記載の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置において、前記掘削工具の先端に掘削水を供給する給水手段を備えたことを特徴とする。   Moreover, the preparation apparatus of the model sample of the buried environment member model for evaluating the behavior of the buried environment field of the underground isolation member of the present invention according to claim 5 according to any one of claims 1 to 4. The buried environment member model model sample production apparatus for evaluating the behavior of the buried environment field of the underground isolation member according to claim 1, further comprising a water supply means for supplying drilling water to a tip of the drilling tool. .

請求項5に係る本発明では、給水手段により掘削箇所への給水を行うことができる。   In this invention which concerns on Claim 5, water supply to an excavation location can be performed by a water supply means.

本発明の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置は、小径の長い孔と、長い穴に直交して連続して設けられる小径の短い孔とを有し、小径の長い孔である坑道に相当する孔と、長い孔に直交して連続して設けられる小径の短い孔である処分孔に相当する孔とを備えた埋設環境部材模型の模型試料を作製することが可能になる。   An apparatus for producing a model sample of a buried environment member model for evaluating the behavior of a buried environment field of a ground isolation member according to the present invention has a small hole having a small diameter and a small diameter and a short diameter that are continuously provided perpendicular to the long hole. Embedded environment member model having a hole corresponding to a tunnel having a small diameter and a hole having a small diameter, and a hole corresponding to a disposal hole being a short hole having a small diameter provided continuously perpendicular to the long hole It becomes possible to produce a model sample.

本発明の一実施例に係る地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置の全体構成を表す概略側面図である。It is a schematic side view showing the whole structure of the preparation apparatus of the model sample of the embedded environment member model for performing the behavior evaluation of the embedded environment field of the underground isolation member which concerns on one Example of this invention. 挙動評価装置の全体構成を説明するための概略側面図である。It is a schematic side view for demonstrating the whole structure of a behavior evaluation apparatus. 作製装置の全体を表す外観図である。It is an external view showing the whole production apparatus. 作製装置の側面図である。It is a side view of a manufacturing apparatus. 図4中のV矢視図である。It is a V arrow directional view in FIG. 図4中のVI-VI線矢視図である。FIG. 6 is a view taken along line VI-VI in FIG. 4. 埋設環境部材模型の模型試料を作製する工程説明図である。It is process explanatory drawing which produces the model sample of a buried environment member model. 埋設環境部材模型の模型試料を作製する工程説明図である。It is process explanatory drawing which produces the model sample of a buried environment member model. 埋設環境部材模型の模型試料を作製する工程説明図である。It is process explanatory drawing which produces the model sample of a buried environment member model.

図1に基づいて埋設環境部材模型、及び、埋設環境部材模型の模型試料を説明する。   A buried environment member model and a model sample of the buried environment member model will be described with reference to FIG.

図1(a)には埋設環境部材模型を構成する模型試料の外観、図1(b)には埋設環境部材模型の概念を示してある。   FIG. 1 (a) shows the appearance of a model sample constituting the buried environment member model, and FIG. 1 (b) shows the concept of the buried environment member model.

本発明の作製装置で作製される地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料は、地中隔離部材が埋設される環境の状態にされた試料、例えば、放射性廃棄物を緩衝材で隔離した試料を埋設するための処分孔を有するものであり、模型試料の処分孔に試料が収容されて埋設環境部材模型が構成される。   The model sample of the buried environment member model for evaluating the behavior of the buried environment field of the underground isolation member manufactured by the manufacturing apparatus of the present invention is a sample in an environment in which the underground isolation member is embedded, for example, A disposal hole for embedding a sample in which radioactive waste is isolated by a buffer material is provided, and the embedded environment member model is configured by accommodating the sample in the disposal hole of the model sample.

埋設環境部材模型11(図1(b)参照)を構成する模型試料16には、図1(a)に示すように、例えば、直方体状のブロック体で、小径の長い孔12が形成されている。小径の長い孔12は坑道に相当する孔に相当する。小径の長い孔12に直交して連続して小径の短い孔である処分孔13が形成され、模型試料16とされている。   As shown in FIG. 1A, the model sample 16 constituting the buried environment member model 11 (see FIG. 1B) has a rectangular block-like block body and a long hole 12 having a small diameter. Yes. The small diameter long hole 12 corresponds to a hole corresponding to a tunnel. A disposal hole 13, which is a short hole with a small diameter, is formed continuously in a direction orthogonal to the long hole 12 with a small diameter.

処分孔13には、試料15(例えば、緩衝材14で隔離した放射性廃棄物)が収容され、坑道に相当する孔12は埋戻し土で塞がれる。これにより、埋設環境部材模型11が構成される。   The disposal hole 13 accommodates a sample 15 (for example, radioactive waste isolated by the buffer material 14), and the hole 12 corresponding to the tunnel is closed with backfill soil. Thereby, the buried environment member model 11 is configured.

埋設環境部材模型11の処分孔13に緩衝材14で隔離した試料15を収容することで、緩衝材14と試料15の挙動が把握される。模型試料16に緩衝材14と試料15が収容され、孔12が埋戻し土で塞がれた埋設環境部材模型11は、挙動評価装置により、地下数百メートルの環境に相当する応力・環境(圧密、透水現象)が加速して加えられ、埋設環境場での地中隔離部材の長期にわたる挙動が評価される。即ち、坑道の変形や周囲に岩盤部材の状況が加味されて長期にわたる挙動が評価される。   By accommodating the sample 15 separated by the buffer material 14 in the disposal hole 13 of the buried environment member model 11, the behavior of the buffer material 14 and the sample 15 is grasped. The embedded environment member model 11 in which the buffer material 14 and the sample 15 are accommodated in the model sample 16 and the hole 12 is closed with backfill soil is subjected to stress / environment (equivalent to an environment of several hundred meters underground) by a behavior evaluation device. Consolidation, water permeability phenomenon) is accelerated and the long-term behavior of the underground isolation member in the buried environment is evaluated. That is, long-term behavior is evaluated by taking into account the deformation of the tunnel and the condition of the rock member around it.

図2に基づいて挙動評価装置の一例を説明する。図2には挙動評価装置の全体構成を説明するための概略側面を示してある。   An example of the behavior evaluation apparatus will be described based on FIG. FIG. 2 shows a schematic side view for explaining the overall configuration of the behavior evaluation apparatus.

挙動評価装置1は、鉛直方向に延びる中心軸S(軸心)を中心に中心回転軸2が回転自在に設けられている。中心回転軸2は図示しない駆動手段により所定の回転速度で駆動回転される。中心回転軸2の下部には、水平方向(軸方向に直交する方向)に延びる回転アーム3の基端が設けられている。   The behavior evaluation apparatus 1 is provided with a central rotation shaft 2 that is rotatable about a central axis S (axial center) extending in the vertical direction. The central rotating shaft 2 is driven and rotated at a predetermined rotational speed by a driving means (not shown). A base end of the rotating arm 3 extending in the horizontal direction (a direction orthogonal to the axial direction) is provided at the lower portion of the central rotating shaft 2.

中心回転軸2を挟んで回転アーム3の反対側にはカウンターアーム4の基端が設けられ、カウンターアーム4の先端にはカウンターウエイト5が回動自在に吊り下げ支持されている。回転アーム3の先端には保持部6が回動自在に吊り下げ支持され、保持部6には、模型試料16(図1参照)に緩衝材14(図1参照)と試料15(図1参照)が収容され、孔12(図1参照)が埋戻し土で塞がれた埋設環境部材模型11が、例えば、容器に入れられて保持される。   A base end of a counter arm 4 is provided on the opposite side of the rotary arm 3 with the central rotary shaft 2 interposed therebetween, and a counter weight 5 is supported by being suspended from the tip of the counter arm 4 so as to be rotatable. A holding portion 6 is rotatably supported at the tip of the rotating arm 3, and the holding portion 6 includes a model sample 16 (see FIG. 1), a buffer material 14 (see FIG. 1), and a sample 15 (see FIG. 1). ) And the embedded environment member model 11 in which the hole 12 (see FIG. 1) is closed with backfilling soil is placed in a container and held, for example.

中心回転軸2が中心軸Sを中心に駆動回転されることにより、回転アーム3及びカウンターアーム4が所定の速度で旋回する。回転アーム3及びカウンターアーム4の旋回により、遠心力が働いてカウンターウエイト5及び保持部6の底部が外側に回動し、回転アーム3及びカウンターアーム4と、カウンターウエイト5及び保持部6とが一直線上に配された状態で旋回する。これにより、埋設環境部材模型11の自重方向に遠心加速度が加えられる。   When the central rotating shaft 2 is driven and rotated about the central axis S, the rotating arm 3 and the counter arm 4 are turned at a predetermined speed. As the rotating arm 3 and the counter arm 4 are turned, a centrifugal force is applied to rotate the bottom portions of the counter weight 5 and the holding portion 6 outward, so that the rotating arm 3 and the counter arm 4, the counter weight 5 and the holding portion 6 are moved. Turn in a straight line. As a result, centrifugal acceleration is applied in the direction of the weight of the embedded environment member model 11.

これにより、模型試料16(図1参照)における坑道に相当する小径の長い孔12(図1参照)の変形や、孔12(図1参照)の埋戻し土との相互作用、緩衝材14(図1参照)の膨潤圧による孔12(図1参照)の埋戻し土の変形、岩盤の変形、隔離部材の発熱、地下水の浸入、緩衝材の膨潤、変形、試料15が収容された埋設環境部材模型11の沈下等、複数の要因の相互作用の影響に対し、長期間の埋設環境を物理的に評価して地中隔離部材の埋設環境場での挙動評価を行うことが可能になる。   Thereby, the deformation | transformation of the small diameter long hole 12 (refer FIG. 1) corresponded to the tunnel in the model sample 16 (refer FIG. 1), interaction with the backfill soil of the hole 12 (refer FIG. 1), the shock absorbing material 14 ( Deformation of backfill soil, deformation of rock mass, heat generation of isolation member, infiltration of groundwater, swelling and deformation of buffer material, embedding environment in which sample 15 is accommodated due to swelling pressure (see FIG. 1) It is possible to evaluate the behavior of the underground isolation member in the embedded environment field by physically evaluating the long-term embedded environment against the influence of the interaction of a plurality of factors such as the sinking of the member model 11.

図1に示すように、埋設環境部材模型11は、模型試料16における坑道に相当する小径の長い孔12に対し、直交して連続して小径の短い孔である処分孔13が形成されている。坑道に相当する長い孔12が小径のため、処分孔13の掘削作業が大変になり、埋設環境部材模型11を作製することは非常に困難であった。このような状況から、地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型11の模型試料16の作製装置を発明するに至った。   As shown in FIG. 1, the buried environment member model 11 is formed with disposal holes 13, which are short holes with a small diameter, continuously perpendicular to a long hole 12 with a small diameter corresponding to a tunnel in the model sample 16. . Since the long hole 12 corresponding to the mine shaft has a small diameter, the excavation work of the disposal hole 13 becomes difficult, and it is very difficult to produce the buried environment member model 11. From such a situation, it came to invent the preparation apparatus of the model sample 16 of the buried environment member model 11 for evaluating the behavior of the buried environment field of the underground isolation member.

図3から図6に基づいて、地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型11の模型試料16の作製装置を説明する。   An apparatus for producing the model sample 16 of the buried environment member model 11 for evaluating the behavior of the buried environment field of the underground isolation member will be described with reference to FIGS.

図3には作製装置の全体を表す外観の斜視状況、図4には作製装置の側面側からの状況、図5には図4中の矢印V方向から見た状況、図6には図4中のVI-VI線に沿った断面状況を示してある。   3 is a perspective view of the appearance of the entire manufacturing apparatus, FIG. 4 is a situation from the side of the manufacturing apparatus, FIG. 5 is a situation seen from the direction of arrow V in FIG. 4, and FIG. The cross-sectional situation along the line VI-VI is shown.

本実施例の作製装置21は、一端面から他端面に貫通孔である孔12(図1参照)が貫通している岩盤に相当する模型試料16(図1参照)に対し、孔12(図1参照)に交差する方向(直交する方向)に対し、孔12(図1参照)に連続する処分孔13(図1参照)を掘削して埋設環境部材模型11を作製する装置である。   The manufacturing apparatus 21 of the present example has a hole 12 (see FIG. 1) for a model sample 16 (see FIG. 1) corresponding to a rock mass through which a hole 12 (see FIG. 1) that is a through hole passes from one end face to the other end face. 1 is a device for excavating a disposal hole 13 (see FIG. 1) continuous with the hole 12 (see FIG. 1) in a direction intersecting with (a direction perpendicular to) 1 to produce a buried environment member model 11.

図に示すように、模型試料16(図1参照)を保持するための保持部材としてのベース板22を備え、ベース板22の一方の端部、他方の端部には、それぞれ上下支持ガイド23が設けられている。上下支持ガイド23には上下ブロック24がそれぞれ昇降自在に支持されている。上下支持ガイド23の上端同士には、はり部材25が掛け渡されている。   As shown in the figure, a base plate 22 is provided as a holding member for holding the model sample 16 (see FIG. 1), and the upper and lower support guides 23 are provided at one end and the other end of the base plate 22, respectively. Is provided. Upper and lower blocks 24 are supported by the upper and lower support guides 23 so as to be movable up and down. A beam member 25 is stretched between the upper ends of the upper and lower support guides 23.

上下支持ガイド23に沿って上下に延びて、ベース板22、及び、はり部材25に上下の端部が回転自在に支持されるねじロッド26がそれぞれ設けられている。上下ブロック24には雌ねじ部が形成され、上下ブロック24の雌ねじ部はねじロッド26に螺合している。つまり、ねじロッド26を回転させることで、上下ブロック24が上下支持ガイド23に案内されて昇降する。   A screw rod 26 that extends vertically along the vertical support guide 23 and whose upper and lower ends are rotatably supported by the base plate 22 and the beam member 25 is provided. The upper and lower block 24 is formed with a female screw portion, and the female screw portion of the upper and lower block 24 is screwed to the screw rod 26. That is, when the screw rod 26 is rotated, the upper and lower blocks 24 are guided by the upper and lower support guides 23 and are moved up and down.

ベース板22に孔12(図1参照)が貫通している模型試料16(図1参照)が保持された際に、孔12(図1参照)に貫通して配される支持アーム部材36が設けられている。支持アーム部材36は上下2枚の長尺の支持板で構成されている。模型試料16(図1参照)の孔12に支持アーム部材36を貫通して配した後、支持アーム部材36の端部は上下ブロック24にそれぞれ固定される。   When the model sample 16 (see FIG. 1) in which the hole 12 (see FIG. 1) passes through the base plate 22 is held, the support arm member 36 disposed through the hole 12 (see FIG. 1) is provided. Is provided. The support arm member 36 is composed of two upper and lower long support plates. After the support arm member 36 is disposed through the hole 12 of the model sample 16 (see FIG. 1), the ends of the support arm member 36 are fixed to the upper and lower blocks 24, respectively.

模型試料16(図1参照)の孔12(図1参照)の内部に位置する部位の支持アーム部材36には、孔12(図1参照)に対して処分孔13(図1参照)を掘削するための掘削工具(コアビット)27が回転自在に支持されている。模型試料16(図1参照)の孔12(図1参照)の外部に位置する部位の支持アーム部材36には、回転駆動手段としての駆動モータ28が設けられている。   A disposal hole 13 (see FIG. 1) is drilled in the support arm member 36 at a position located inside the hole 12 (see FIG. 1) of the model sample 16 (see FIG. 1) with respect to the hole 12 (see FIG. 1). An excavation tool (core bit) 27 is rotatably supported. A drive motor 28 as a rotational drive means is provided on the support arm member 36 at a portion located outside the hole 12 (see FIG. 1) of the model sample 16 (see FIG. 1).

尚、掘削工具27自体を掘削方向に移動させる機構を備えることも可能である。   It is also possible to provide a mechanism for moving the excavation tool 27 itself in the excavation direction.

駆動モータ28の駆動軸と掘削工具27の回転軸には伝達ベルト29が掛けまわされ、駆動モータ28の駆動により伝達ベルト29を介して掘削工具27が駆動回転する。支持アーム部材36には給水用の配管30が設けられ、掘削工具27による掘削部位に配管30を通して給水が行われる。   A transmission belt 29 is wound around the drive shaft of the drive motor 28 and the rotation shaft of the excavation tool 27, and the excavation tool 27 is driven to rotate via the transmission belt 29 by the drive motor 28. The support arm member 36 is provided with a water supply pipe 30, and water is supplied to the excavation site by the excavation tool 27 through the pipe 30.

一方、2本のねじロッド26の上端同士にはタイミングベルト31が掛けまわされ、一方のねじロッド26の上端にはハンドル32が設けられている。ハンドル32を回転させることにより、タイミングベルト31を介して2本のねじロッド26が同期して(連動して)回転し、上下ブロック24が上下支持ガイド23に案内されて昇降し、支持アーム部材36(掘削工具27)が昇降する。   On the other hand, a timing belt 31 is wound around the upper ends of the two screw rods 26, and a handle 32 is provided at the upper end of the one screw rod 26. By rotating the handle 32, the two screw rods 26 are rotated synchronously (interlocked) via the timing belt 31, and the upper and lower blocks 24 are guided by the upper and lower support guides 23 to move up and down, thereby supporting arm members. 36 (excavation tool 27) moves up and down.

つまり、ねじロッド26、タイミングベルト31、上下ブロック24、支持アーム部材36により、掘削工具27を掘削方向に移動させる掘削移動手段が構成されている。尚、図中の符号で33は孔12が貫通している試料を固定するための固定板である。   That is, the screw rod 26, the timing belt 31, the upper and lower blocks 24, and the support arm member 36 constitute excavation moving means for moving the excavation tool 27 in the excavation direction. Note that reference numeral 33 in the figure denotes a fixing plate for fixing the sample through which the hole 12 passes.

上記構成では、上下ブロック24に対し、支持アーム部材36を固定した例を挙げて説明したが、上下ブロック24に対し、支持アーム部材36を軸心周りで回動自在に支持させることも可能である。支持アーム部材36を回動自在にすることで、試料の孔12に対し任意の放射方向に処分孔13を掘削することができる。   In the above configuration, the example in which the support arm member 36 is fixed to the upper and lower blocks 24 has been described. However, the support arm member 36 can be supported by the upper and lower blocks 24 so as to be rotatable around the axis. is there. By making the support arm member 36 rotatable, the disposal hole 13 can be excavated in an arbitrary radial direction with respect to the sample hole 12.

また、上下ブロック24に対し、支持アーム部材36を長手方向(孔12と平行な方向)に移動自在に支持することも可能である。支持アーム部材36を孔12と平行な方向に移動させることで、孔12の任意の場所に処分孔13を掘削することができる。   It is also possible to support the support arm member 36 movably in the longitudinal direction (direction parallel to the hole 12) with respect to the upper and lower blocks 24. By moving the support arm member 36 in a direction parallel to the hole 12, the disposal hole 13 can be excavated at an arbitrary position of the hole 12.

また、掘削工具27を回転軸に取り付けるためのスペーサを複数準備し、スペーサを接続しながら掘削を繰り返すことで、任意の深さの処分孔13を掘削することができる。   Further, by preparing a plurality of spacers for attaching the excavation tool 27 to the rotary shaft and repeating excavation while connecting the spacers, the disposal hole 13 having an arbitrary depth can be excavated.

図7から図9に基づいて孔12が形成された模型試料16に対し処分孔13を掘削して埋設環境部材模型11を作製する手順を説明する。   A procedure for excavating the disposal hole 13 in the model sample 16 in which the hole 12 is formed and manufacturing the embedded environment member model 11 will be described with reference to FIGS.

図7には孔12が形成された模型試料16をセットした状態の側面視、図8には孔12に支持アーム部材36を挿入して掘削の準備が完了した状態の側面視、図9には処分孔13を掘削した状態の側面視を示してある。   FIG. 7 is a side view of the model sample 16 in which the hole 12 is formed, FIG. 8 is a side view of the state where the support arm member 36 is inserted into the hole 12 and preparation for excavation is completed, and FIG. Shows a side view of the state in which the disposal hole 13 has been excavated.

図7に示すように、作製装置21から支持アーム部材36を外した状態にして準備する。上下支持ガイド23の間のベース板22の上に、孔12が形成された模型試料16をセットし、模型試料16を固定板33で固定する。   As shown in FIG. 7, the preparation is performed with the support arm member 36 removed from the manufacturing apparatus 21. On the base plate 22 between the upper and lower support guides 23, the model sample 16 in which the holes 12 are formed is set, and the model sample 16 is fixed by the fixing plate 33.

図8に示すように、掘削工具27を備えた支持アーム部材36を模型試料16の孔12に挿入し、支持アーム部材36の端部を上下ブロック24にそれぞれ固定する。   As shown in FIG. 8, the support arm member 36 provided with the excavating tool 27 is inserted into the hole 12 of the model sample 16, and the end portions of the support arm member 36 are fixed to the upper and lower blocks 24, respectively.

これにより、掘削工具27の先端部が孔12の下側の面に対向して位置決めされる。駆動モータ28の駆動により、伝達ベルト29を介して掘削工具27が駆動回転する。   Thereby, the front-end | tip part of the excavation tool 27 is positioned facing the lower surface of the hole 12. The excavation tool 27 is driven to rotate via the transmission belt 29 by the drive motor 28.

ハンドル32を回すことにより、タイミングベルト31を介して2本のねじロッド26が同期して(連動して)回転する。   By rotating the handle 32, the two screw rods 26 are rotated in synchronization (interlocked) via the timing belt 31.

図9に示すように、上下ブロック24が上下支持ガイド23に案内されて下降し、支持アーム部材36が模型試料16の孔12の径の距離を下降する。支持アーム部材36の下降により掘削工具27により処分孔13が掘削される。掘削中は配管30から掘削部に給水が行われる。   As shown in FIG. 9, the upper and lower blocks 24 are guided by the upper and lower support guides 23 and descend, and the support arm member 36 descends the distance of the diameter of the hole 12 of the model sample 16. The disposal hole 13 is excavated by the excavation tool 27 when the support arm member 36 is lowered. During excavation, water is supplied from the pipe 30 to the excavation part.

模型試料16に処分孔13が掘削されることで、孔12に交差する方向(直交する方向)に対し、孔12に連続する処分孔13が掘削された模型試料16が作製される。模型試料16を用いて埋設環境部材模型11(図1参照)が構成される。   When the disposal hole 13 is excavated in the model sample 16, the model sample 16 in which the disposal hole 13 continuous to the hole 12 is excavated with respect to the direction intersecting the hole 12 (orthogonal direction) is produced. The embedded environment member model 11 (see FIG. 1) is configured using the model sample 16.

必要に応じて、ハンドル32を回して掘削工具27を処分孔13から抜き、スペーサ等を取り付けて再び掘削移動させることで、所望の深さの処分孔13とすることができる。   If necessary, the handle 32 is turned to remove the excavating tool 27 from the disposal hole 13, and a disposal hole 13 having a desired depth can be obtained by attaching a spacer or the like and excavating again.

掘削が終了した後、掘削工具27を処分孔13から抜き、支持アーム部材36の端部を上下ブロック24から取り外し、孔12から支持アーム部材36を抜き外す。固定板33を外し、処分孔13が掘削された模型試料16を取り外す。   After the excavation is completed, the excavation tool 27 is extracted from the disposal hole 13, the end of the support arm member 36 is removed from the upper and lower blocks 24, and the support arm member 36 is extracted from the hole 12. The fixing plate 33 is removed, and the model sample 16 in which the disposal hole 13 has been excavated is removed.

作製装置21を用いることにより、一端面から他端面に貫通孔である孔12が貫通している岩盤に相当する模型試料16に対し、孔12に交差する方向(直交する方向)に対し、孔12に連続する処分孔13を掘削し、埋設環境部材模型11を構成するための模型試料16を作製することができる。   By using the production apparatus 21, the model sample 16 corresponding to the rock in which the hole 12 that is a through hole passes from one end surface to the other end surface has a hole in a direction intersecting the hole 12 (orthogonal direction). 12, a model sample 16 for constructing the buried environment member model 11 can be produced.

従って、上述した作製装置21により、小径の長い孔である坑道に相当する孔12と、長い孔12に直交して連続して設けられる小径の短い孔である処分孔13に相当する孔とを備えた模型試料16(埋設環境部材模型11を構成するための模型試料16)を作製することが可能になる。   Therefore, the above-described production device 21 makes it possible to form the hole 12 corresponding to the tunnel having a long hole with a small diameter and the hole corresponding to the disposal hole 13 being a short hole with a small diameter provided continuously perpendicular to the long hole 12. The provided model sample 16 (model sample 16 for constituting the buried environment member model 11) can be produced.

本発明は、地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置の産業分野で利用することができる。   INDUSTRIAL APPLICABILITY The present invention can be used in the industrial field of a model preparation apparatus for a buried environment member model for evaluating the behavior of a buried environment field of a ground isolation member.

1 挙動評価装置
2 中心回転軸
3 回転アーム
4 カウンターアーム
5 カウンターウエイト
6 保持部
11 埋設環境部材模型
12 孔
13 処分孔
14 緩衝材
15 隔離された試料
16 模型試料
21 作製装置
22 ベース板
23 上下支持ガイド
24 上下ブロック
25 はり部材
26 ねじロッド
27 掘削工具
28 駆動モータ
29 伝達ベルト
30 配管
31 タイミングベルト
32 ハンドル
33 固定板
36 支持アーム部材
DESCRIPTION OF SYMBOLS 1 Behavior evaluation apparatus 2 Center rotating shaft 3 Rotating arm 4 Counter arm 5 Counter weight 6 Holding part 11 Embedded environment member model 12 Hole 13 Disposal hole 14 Buffer material 15 Isolated sample 16 Model sample 21 Preparation apparatus 22 Base plate 23 Vertical support Guide 24 Upper / lower block 25 Beam member 26 Screw rod 27 Excavation tool 28 Drive motor 29 Transmission belt 30 Piping 31 Timing belt 32 Handle 33 Fixing plate 36 Support arm member

Claims (5)

一端面から他端面に貫通孔が貫通している岩盤に相当する模型試料に対し、前記貫通孔に交差する方向に対し、前記貫通孔に連続する処分孔を作製して埋設環境部材模型の模型試料を作製する装置であり、
前記模型試料を保持する保持部材と、
前記保持部材に保持された前記模型試料の前記貫通孔に貫通して挿入される支持アーム部材と、
前記支持アーム部材の端部を支持する上下支持ガイドと、
前記支持アーム部材に設けられ、前記貫通孔に対して処分孔を掘削する掘削工具と、
前記掘削工具を回転駆動させる回転駆動手段と、
前記掘削工具を掘削方向に移動させる掘削移動手段とを備えた
ことを特徴とする地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置。
A model of a buried environmental member model by creating a disposal hole continuous with the through hole in a direction intersecting the through hole with respect to a model sample corresponding to a rock having a through hole penetrating from one end surface to the other end surface. An apparatus for producing a sample,
A holding member for holding the model sample;
A support arm member inserted through the through hole of the model sample held by the holding member;
A vertical support guide for supporting an end of the support arm member;
A drilling tool provided in the support arm member for drilling a disposal hole with respect to the through hole;
Rotation drive means for rotating the excavation tool;
An excavation moving means for moving the excavation tool in the excavation direction is provided. An apparatus for producing a model sample of an embedded environment member model for evaluating the behavior of an embedded environment field of an underground isolation member.
請求項1に記載の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置において、
前記回転駆動手段は、
前記模型試料の前記貫通孔の外側の前記支持アーム部材に設けられる駆動モータと、
前記駆動モータの駆動軸と前記掘削工具の回転軸とを連結する伝達ベルトとを有している
ことを特徴とする地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置。
In the preparation apparatus of the model sample of the buried environment member model for evaluating the behavior of the buried environment field of the underground isolation member according to claim 1,
The rotation driving means includes
A drive motor provided on the support arm member outside the through hole of the model sample;
An embedded environment member model for evaluating the behavior of an embedded environment field of an underground isolation member, comprising a transmission belt for connecting a drive shaft of the drive motor and a rotation shaft of the excavation tool Model sample production equipment.
請求項1もしくは請求項2に記載の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置において、
前記掘削移動手段は、
前記上下支持ガイドに昇降自在に支持されると共に、前記支持アーム部材が取り付けられ、雌ねじ部が形成された上下ブロックと、
前記上下ブロックの雌ねじ部に螺合し、前記上下支持ガイドに沿って上下に延びて回転自在に支持されるねじロッドと、
前記ねじロッドを回転させることで前記支持アーム部材を昇降させ、前記掘削工具を掘削方向に移動させる
ことを特徴とする地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置。
In an apparatus for preparing a model sample of a buried environment member model for evaluating the behavior of a buried environment field of the underground isolation member according to claim 1 or 2,
The excavation moving means is
An upper and lower block that is supported by the upper and lower support guides so as to be movable up and down, the support arm member is attached, and an internal thread portion is formed;
A screw rod threadably engaged with the female thread portion of the upper and lower blocks, extending vertically along the vertical support guide, and rotatably supported;
An embedded environment member model for evaluating the behavior of an embedded environment field of an underground isolation member, wherein the support arm member is moved up and down by rotating the screw rod, and the excavation tool is moved in the excavation direction. Model sample production equipment.
請求項3に記載の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置において、
前記上下支持ガイド、前記上下ブロック、前記ねじロッドは、前記支持アーム部材の両端にそれぞれ備えられ、
前記それぞれのねじロッドを連動して回転させるタイミングベルトが備えられている
ことを特徴とする地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置。
In the preparation apparatus of the model sample of the buried environment member model for performing the behavior evaluation of the buried environment field of the underground isolation member according to claim 3,
The upper and lower support guides, the upper and lower blocks, and the screw rod are respectively provided at both ends of the support arm member,
An apparatus for producing a model sample of a buried environment member model for evaluating the behavior of a buried environment field of a ground isolation member, comprising a timing belt for rotating each of the screw rods in conjunction with each other.
請求項1から請求項4のいずれか一項に記載の地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置において、
前記掘削工具の先端に掘削水を供給する給水手段を備えた
ことを特徴とする地中隔離部材の埋設環境場の挙動評価を行うための埋設環境部材模型の模型試料の作製装置。
In the preparation apparatus of the model sample of the embedded environment member model for performing the behavior evaluation of the embedded environment field of the underground isolation member according to any one of claims 1 to 4,
An apparatus for producing a model sample of a buried environment member model for evaluating the behavior of a buried environment field of a ground isolation member, comprising a water supply means for supplying drilling water to a tip of the drilling tool.
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