JP2008266948A - Leveling machine and method of laying clay-based impermeable layer - Google Patents

Leveling machine and method of laying clay-based impermeable layer Download PDF

Info

Publication number
JP2008266948A
JP2008266948A JP2007109620A JP2007109620A JP2008266948A JP 2008266948 A JP2008266948 A JP 2008266948A JP 2007109620 A JP2007109620 A JP 2007109620A JP 2007109620 A JP2007109620 A JP 2007109620A JP 2008266948 A JP2008266948 A JP 2008266948A
Authority
JP
Japan
Prior art keywords
clay
based material
vibration plate
covering layer
side wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2007109620A
Other languages
Japanese (ja)
Other versions
JP4888716B2 (en
Inventor
Taku Ishii
卓 石井
Takashi Aoki
孝 青木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimizu Construction Co Ltd
Shimizu Corp
Original Assignee
Shimizu Construction Co Ltd
Shimizu Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shimizu Construction Co Ltd, Shimizu Corp filed Critical Shimizu Construction Co Ltd
Priority to JP2007109620A priority Critical patent/JP4888716B2/en
Publication of JP2008266948A publication Critical patent/JP2008266948A/en
Application granted granted Critical
Publication of JP4888716B2 publication Critical patent/JP4888716B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/30Landfill technologies aiming to mitigate methane emissions

Abstract

<P>PROBLEM TO BE SOLVED: To provide a leveling machine capable of leveling a clay-based material without damaging the existing structure. <P>SOLUTION: This leveling machine 3 comprises a vibrating plate 31 for leveling a clay-based material and a vibrator 33 mounted on the vibration plate 31 and vibrating the vibration plate 31. A guide wheel 32, rotatable in the advancing direction, is so installed as to project to the side of the vibrating plate 31. Since the vibrating plate 31 runs, while being separated from a skeleton covering layer and the sidewall of a side wall body part 18 via the guide wheel 32. Since the leveling machine 3 will not damage the skeleton covering layer 17 and the sidewall body part 18, the leveling machine can perform efficient leveling. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、撒き出された粘土系材料を敷き均す敷均機、敷き均された粘土系材料を締め固めた粘土系遮水層の敷設方法に関するものである。   The present invention relates to a spread leveling machine that spreads and spreads a clay-based material, and a method for laying a clay-based impermeable layer in which the spread clay-based material is compacted.

低レベルの放射性廃棄物の埋設処分施設が計画されている。埋設処分施設は、掘削した地下坑道の内部に底部床盤部と底部遮水層とを敷設した後に、躯体コンクリートを構築したものである。躯体コンクリートは上方が開口しており、放射性廃棄物が内部に収容可能となっている。そして、躯体コンクリートの内部に放射性廃棄物を収容した後、蓋体(躯体コンクリート)で開口を塞ぐことにより、躯体コンクリートは封止される。その後、躯体コンクリートの周りを躯体被覆層で囲繞し、さらに、躯体被覆層と、別途構築された側部壁体部との間に、撒き出した粘土系材料を締め固めることにより粘土系遮水層を敷設し、安全を期している(例えば、特許文献1参照)。   A low-level radioactive waste disposal facility is planned. The buried disposal facility is constructed of reinforced concrete after laying a bottom floor base and a bottom impermeable layer inside an excavated underground tunnel. The upper part of the concrete frame is open so that radioactive waste can be accommodated inside. And after accommodating radioactive waste in the inside of a frame concrete, a frame concrete is sealed by closing an opening with a cover (frame concrete). After that, the surroundings of the frame concrete are surrounded by a frame cover layer, and the clay-based impermeable material is compacted between the frame cover layer and the separately constructed side wall body portion. Layers are laid to ensure safety (for example, see Patent Document 1).

特開2004−12356号公報JP 2004-12356 A

ところで、この粘土系遮水層は、撒出機から撒き出された粘土系材料を転圧機によって締め固めることにより敷設されるために、粘土系材料が均一に撒き出されなかった場合には凹凸が生じ、敷設された粘土系遮水層に欠点が残ることなる。   By the way, since this clay-based impermeable layer is laid by compacting the clay-based material squeezed out from the brewing machine with a compactor, it is uneven when the clay-based material is not uniformly squeezed out. And a defect remains in the laid clay-based impermeable layer.

本発明は、上記に鑑みてなされたものであって、既設の構造物を傷つけることなく粘土系材料を敷き均すことが可能な敷均機、及びこの敷均機を用いてより均一な密度で締め固めた粘土系遮水層の敷設を可能とした粘土系遮水層の敷設方法を提供することを目的とする。   The present invention has been made in view of the above, and a spreader capable of spreading and leveling clay-based materials without damaging existing structures, and a more uniform density using this spreader An object of the present invention is to provide a method for laying a clay-based impermeable layer that enables the clay-based impermeable layer to be laid down in a step.

上述した課題を解決し、目的を達成するために、本発明の請求項1に係る敷均機は、撒き出された粘土系材料を敷き均す振動プレートと、前記振動プレートに搭載され、前記振動プレートを振動させる振動バイブレータとを備えた敷均機において、進行方向に回転自在なガイド車輪を前記振動プレートの側方に突出する態様で備えたことを特徴とする。   In order to solve the above-described problems and achieve the object, a spreader according to claim 1 of the present invention is mounted on a vibrating plate for spreading a clay-based material that has been squeezed out, and mounted on the vibrating plate, A spreader provided with a vibration vibrator that vibrates the vibration plate is characterized in that a guide wheel that is rotatable in the advancing direction is provided so as to protrude to the side of the vibration plate.

また、本発明の請求項2に係る敷均機は、上記請求項1において、前記振動バイブレータが前記振動プレートを進行させる態様で振動することを特徴とする。   Further, the spreader according to claim 2 of the present invention is characterized in that, in the above-mentioned claim 1, the vibrator vibrates in such a manner that the vibratory plate advances.

また、本発明の請求項3に係る敷均機は、上記請求項1において、粘土系材料を撒き出す撒出機に前記振動プレートが吊り下げられたことを特徴とする。   According to a third aspect of the present invention, there is provided a spreader according to the first aspect, wherein the vibration plate is suspended from a brewing machine that draws out clay-based material.

また、本発明の請求項4に係る粘土系遮水層の敷設方法は、廃棄物格納躯体を収容した躯体コンクリートの周りを囲繞することにより構築され、横断面が矩形形状を有した躯体被覆層と、該躯体被覆層の側面と所定の間隔を有して対向するように構築された側部壁体部との間に、粘土系材料を撒き出した後に該粘土系材料を締め固めることにより、前記躯体被覆層と前記側部壁体部との間に粘土系遮水層を敷設する粘土系遮水層の敷設方法において、躯体被覆層と側部壁体部との間に粘土系材料を撒き出す工程と、躯体被覆層と側部壁体部との間に撒き出された粘土系材料を締め固める工程との間に、撒き出された粘土系材料を敷き均す工程を設けたことを特徴とする。   The clay-based impermeable layer laying method according to claim 4 of the present invention is constructed by surrounding the surrounding concrete containing the waste storage enclosure, and the enclosure covering layer having a rectangular cross section. And crushing the clay-based material after rolling out the clay-based material between the side wall body portion constructed so as to face the side surface of the housing covering layer with a predetermined interval In the laying method of the clay-based impermeable layer, wherein a clay-based impermeable layer is laid between the enclosure covering layer and the side wall portion, the clay-based material is provided between the enclosure covering layer and the side wall portion. A step of spreading and smoothing the clay-based material squeezed out between the step of rolling out the clay and the step of compacting the clay-based material squeezed out between the housing cover layer and the side wall body portion It is characterized by that.

本発明に係る敷均機は、進行方向に回転自在なガイド車輪を振動プレートの側方に突出する態様で備えたので、振動プレートは既設の構造物の側壁とガイド車輪を介して離隔した状態で進行する。したがって、敷均機が既設の構造物を傷付けることがない。   Since the spreader according to the present invention is provided with a guide wheel that is rotatable in the traveling direction so as to protrude to the side of the vibration plate, the vibration plate is separated from the side wall of the existing structure via the guide wheel. Proceed with Therefore, the spreader does not damage existing structures.

本発明に係る粘土系遮水層の敷設方法は、躯体被覆層と側部壁体部との間に粘土系材料を撒き出す工程と、躯体被覆層と側部壁体部との間に撒き出された粘土系材料を締め固める工程との間に、撒き出された粘土系材料を敷き均す工程を設けたので、撒き出された粘土系材料を平坦に敷き均した後に締め固めることになり、絞め固められた粘土系遮水層の仕上がり密度を均一なものとすることができる。   The method for laying a clay-based water shielding layer according to the present invention includes a step of rolling out a clay-based material between a casing covering layer and a side wall body portion, and a step of spreading between the casing covering layer and the side wall body portion. Since there is a step of spreading and smoothing the clay-based material that has been squeezed between the steps of compacting the clay-based material that has been removed, Therefore, the finished density of the squeezed clay-based water shielding layer can be made uniform.

以下に、本発明の実施の形態である粘土系遮水層の敷設方法、及びこの敷設方法に用いられる敷均装置を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。   Below, the laying method of the clay type impermeable layer which is an embodiment of the present invention, and the laying apparatus used for this laying method are explained in detail based on a drawing. Note that the present invention is not limited to the embodiments.

図1は、本発明の実施の形態である粘土系遮水層の敷設方法を適用する低レベルの放射性廃棄物の埋設処分施設を示す横断面図である。   FIG. 1 is a cross-sectional view showing a low-level radioactive waste embedding disposal facility to which a clay-based impermeable layer laying method according to an embodiment of the present invention is applied.

低レベルの放射性廃棄物の埋設処分施設1は、掘削した地下坑道11の内部に底部床盤部12と底部遮水層13とを敷設した後に、躯体コンクリート14を構築したものである。底部床盤部12は、コンクリート、モルタル等の埋戻材料を敷設したものであり、底部遮水層13は、粘土系材料(例えば、ベントナイト系粘土材)を締め固めたものである。躯体コンクリート14は上方が開口しており、内部に放射性廃棄物15を収容可能となっている。そして、躯体コンクリート14の内部に放射性廃棄物15を収容した後に、蓋体14aで開口を塞ぐことにより、躯体コンクリート14は封止される。その後、躯体コンクリート14の周りは躯体被覆層17で囲繞される。躯体被覆層17は、無筋のセメント系モルタル等により構築され、横断面が矩形形状を有している。また、地下坑道11の側壁に沿って側部壁体部18が別途構築されている。側部壁体部18は、躯体被覆層17の側面と所定の間隔を有して対向するように構築されており、躯体被覆層17と側部壁体部18との間には、狭隘な空間である狭隘部19が画成されている。   The low-level radioactive waste burying / disposal facility 1 is constructed by laying a bottom floor base 12 and a bottom impermeable layer 13 inside an excavated underground tunnel 11 and then building a concrete frame 14. The bottom floor board 12 is laid with a backfill material such as concrete or mortar, and the bottom impermeable layer 13 is a compacted clay-based material (for example, bentonite-based clay material). The upper part of the concrete frame 14 is open, and the radioactive waste 15 can be accommodated therein. And after accommodating the radioactive waste 15 in the inside of the frame concrete 14, the frame concrete 14 is sealed by closing an opening with the cover body 14a. Thereafter, the surrounding area of the frame concrete 14 is surrounded by a frame cover layer 17. The casing covering layer 17 is constructed of unreinforced cement-based mortar or the like, and has a rectangular cross section. A side wall body portion 18 is separately constructed along the side wall of the underground mine shaft 11. The side wall body portion 18 is constructed so as to face the side surface of the housing covering layer 17 with a predetermined interval, and is narrow between the housing covering layer 17 and the side wall body portion 18. A narrow portion 19 that is a space is defined.

本発明の実施の形態に係る粘土系遮水層の敷設方法は、上述した躯体被覆層17と側部壁体部18との間に画成された狭隘部19に敷設する側部遮水層の敷設方法に関するものである。図1に示すように、躯体被覆層17の上方は比較的大きな空間として利用可能であり、躯体被覆層17の側面および上面は平坦な面となっている。一方、側部壁体部18は、底部床盤部12と同様に、コンクリート、モルタル等の埋戻材料により構築してあり、その側面は平坦な面となっている。   The clay-based impermeable layer laying method according to the embodiment of the present invention is the side impermeable layer laid on the narrow portion 19 defined between the above-described casing covering layer 17 and the side wall portion 18. Is related to the laying method. As shown in FIG. 1, the upper side of the housing covering layer 17 can be used as a relatively large space, and the side surface and the upper surface of the housing covering layer 17 are flat surfaces. On the other hand, the side wall body portion 18 is constructed of a backfill material such as concrete and mortar, like the bottom floor base portion 12, and the side surface thereof is a flat surface.

図2〜図4に示すように、躯体被覆層17の上面を走行するように撒出機2を配備する一方、躯体被覆層17と側部壁体部18との間を走行するように敷均機3と転圧機4とを配備してある。したがって、撒出機2は、敷均機3及び転圧機4と段差を隔てて横並びとなるように走行することができるようになっている。   As shown in FIGS. 2 to 4, the brewing machine 2 is arranged so as to run on the upper surface of the housing covering layer 17, while the laying machine 2 is run so as to run between the housing covering layer 17 and the side wall body portion 18. A leveling machine 3 and a compactor 4 are provided. Accordingly, the brewing machine 2 can travel so as to be lined up side by side with a leveling machine 3 and a compactor 4.

撒出機2は、上方から躯体被覆層17と側部壁体部18との間に粘土系材料(例えば、ベントナイト系粘土材)を撒き出すためのもので、撒出機本体20を有している。撒出機本体20には、車輪タイプの走行装置21が取り付けてあり、撒出機2は一定の速度による自律走行が可能となっている。また、撒出機本体20には、ホッパー22およびフィーダ23が搭載してある。ホッパー22は、撒き出す粘土系材料が供給される部分であって、時間当たり一定量の粘土系材料をフィーダ23に順次送出可能となっている。フィーダ23は、例えば、振動により粘土系材料を送出する振動フィーダにより構成してあり、ホッパー22から供給された粘土系材料を一様な厚みとした後に斜め前方から粘土系材料を撒き出すようになっている。   The brewing machine 2 is for brewing a clay-based material (for example, bentonite-based clay material) between the casket covering layer 17 and the side wall body 18 from above, and has a brewing machine body 20. ing. A wheel-type traveling device 21 is attached to the brewing machine main body 20, and the brewing machine 2 can autonomously travel at a constant speed. In addition, a hopper 22 and a feeder 23 are mounted on the unwinding machine body 20. The hopper 22 is a portion to which the clay-based material to be sprinkled is supplied, and a certain amount of clay-based material per hour can be sequentially sent to the feeder 23. The feeder 23 is constituted by, for example, a vibration feeder that sends out a clay-based material by vibration, and after the clay-based material supplied from the hopper 22 has a uniform thickness, the clay-based material is squeezed out obliquely from the front. It has become.

敷均機3は、躯体被覆層17と側部壁体部18との間に撒き出された粘土系材料を敷き均すためのもので、振動プレート31を有している。振動プレート31の前進方向端部となる前部31aは、前進方向に向けて漸次高くなるように傾斜しており、撒き出された粘土系材料に凹凸がある場合であっても振動プレート31が粘土系材料を乗り越えることができるようになっている。同様に、振動プレート31の後退方向端部となる後部31bは、後退方向に向けて漸次高くなるように傾斜している。   The spreader 3 is for spreading and leveling the clay-based material squeezed between the casing covering layer 17 and the side wall 18 and has a vibration plate 31. The front part 31a which becomes the forward direction end of the vibration plate 31 is inclined so as to gradually become higher in the forward direction, and the vibration plate 31 is provided even when the clay-based material squeezed out has irregularities. It is possible to get over clay-based materials. Similarly, the rear portion 31b which is the end portion in the backward direction of the vibration plate 31 is inclined so as to gradually become higher in the backward direction.

振動プレート31の進行方向側方となる左側部と右側部とには、それぞれ一対となるガイド車輪32が設けてある。各ガイド車輪32は、振動プレート31の側方に突出する態様で取り付けてあり、敷均機3の進行方向に回転自在となっている。したがって、敷均機3は、ガイド車輪32に案内され、操行操作をしなくても前後方向に走行可能となっている。   A pair of guide wheels 32 are provided on the left side and the right side that are lateral to the traveling direction of the vibration plate 31. Each guide wheel 32 is attached so as to protrude to the side of the vibration plate 31 and is rotatable in the traveling direction of the spreader 3. Therefore, the spreader 3 is guided by the guide wheels 32 and can travel in the front-rear direction without performing an operation.

また、振動プレート31には、振動バイブレータ33が搭載してある。振動バイブレータ33は、振動プレート31を振動させるためのもので、振動プレート31が振動すると振動プレート31の下の粘土系材料が敷き均されるとともに軽度に締め固められる(予備転圧)。   A vibration vibrator 33 is mounted on the vibration plate 31. The vibration vibrator 33 is for vibrating the vibration plate 31, and when the vibration plate 31 vibrates, the clay-based material under the vibration plate 31 is spread and lightly compacted (preliminary rolling).

振動バイブレータ33は、例えば、図5あるいは図6に示すように、ディスク34の重心位置を回転軸から移動した回転式のバイブレータであって、ディスク34の回転がアンバランスとなることによる大きな遠心力を振動力として利用している。図5に示した敷均機3の振動バイブレータ33は、振動プレート31を進行させる態様で振動させることができ、ディスク34が一方(図5において反時計回り)に回転した場合には振動プレート31が前進(図5において左方に移動)し、ディスク34が他方(図5において時計回り)に回転した場合には振動プレート31が後退(図5において右方に移動)するようになっている。図6に示した敷均機3の振動バイブレータ33は、図5に示した振動バイブレータ33と同様に、振動を進行させる態様で振動させることができ、一方(図6において左方)の振動バイブレータ33のディスクを一方(図6において反時計回り)に回転させた場合には振動プレート31が前進(図6において左方に移動)し、他方(図6において右方)の振動バイブレータ33のディスク34を他方向(図6において時計回り)に回転させた場合には振動プレート31が後退(図6において右方に移動)するようになっている。   For example, as shown in FIG. 5 or FIG. 6, the vibration vibrator 33 is a rotary vibrator in which the center of gravity of the disk 34 is moved from the rotation axis, and a large centrifugal force due to unbalanced rotation of the disk 34. Is used as a vibration force. The vibration vibrator 33 of the spreader 3 shown in FIG. 5 can vibrate in such a manner that the vibration plate 31 travels, and when the disk 34 rotates in one direction (counterclockwise in FIG. 5), the vibration plate 31. Moves forward (moves to the left in FIG. 5), and when the disk 34 rotates in the other direction (clockwise in FIG. 5), the vibration plate 31 moves backward (moves to the right in FIG. 5). . The vibration vibrator 33 of the spreader 3 shown in FIG. 6 can be vibrated in a manner of advancing the vibration, similarly to the vibration vibrator 33 shown in FIG. 5, and one (left in FIG. 6) vibration vibrator. When the 33 disk is rotated in one direction (counterclockwise in FIG. 6), the vibration plate 31 moves forward (moves to the left in FIG. 6) and the other (right in FIG. 6) the vibration vibrator 33 disk. When 34 is rotated in the other direction (clockwise in FIG. 6), the vibration plate 31 moves backward (moves to the right in FIG. 6).

上述した敷均機3は、リモートコントローラ(図示せず)を操作することにより、前後の方向に任意の速度で進行し、粘土系材料を敷き均すことが可能となっている。   The above-described spread leveling machine 3 can advance at an arbitrary speed in the front-rear direction by operating a remote controller (not shown), and can spread and level clay material.

図2〜図4に示すように、転圧機4は、躯体被覆層17と側部壁体部18との間において敷き均された粘土系材料を転圧するためのもので、転圧機本体40を有している。転圧機本体40には、車輪タイプの走行装置41が取り付けてあり、転圧機4は一定の速度による自律走行が可能となっている。   As shown in FIGS. 2 to 4, the compactor 4 is for compacting the clay-based material spread between the housing covering layer 17 and the side wall 18, and the compactor main body 40 is Have. A wheel-type travel device 41 is attached to the compactor main body 40, and the compactor 4 can autonomously travel at a constant speed.

また、転圧機本体40の進行方向側方となる左側部と右側部とには、それぞれ一対となるガイド車輪42が設けてある。各ガイド車輪42は、転圧機本体40および後述する転圧装置45の側方に突出する態様で取り付けてあり、転圧機4の進行方向に回転自在となっている。したがって、転圧機4は、ガイド車輪42に案内され、操向操作をしなくても前後方向に走行可能となっている。   In addition, a pair of guide wheels 42 are provided on the left side and the right side which are the side in the traveling direction of the compactor body 40. Each guide wheel 42 is attached in such a manner as to protrude to the side of the compactor body 40 and the compactor 45 to be described later, and is rotatable in the traveling direction of the compactor 4. Therefore, the compactor 4 is guided by the guide wheels 42 and can travel in the front-rear direction without performing a steering operation.

また、転圧機本体40には、昇降装置43、シフト装置44および転圧装置45が搭載してある。昇降装置43は、シフト装置44および転圧装置45を上下方向に昇降させるものであり、転圧装置45を任意の高さに維持した状態で走行可能となっている。シフト装置44は、昇降装置43と転圧装置45との間に設けられ、転圧機本体40の走行方向と直交する方向に転圧装置45をシフトさせることが可能となっている。転圧装置45は、複数の転圧ユニット45aを有している。複数の転圧ユニット45aは、転圧機本体40の走行方向と直交する方向に配設してあり、転圧機本体40の幅を超えて転圧することが可能となっている。各転圧ユニット45aは、下方に繰り出すことにより粘土系材料を転圧することが可能であって、これら複数の転圧ユニット45aは異なるタイミングで粘土系材料を転圧することが可能である。   Further, the pressure roller main body 40 is equipped with an elevating device 43, a shift device 44 and a pressure rolling device 45. The elevating device 43 elevates and lowers the shift device 44 and the rolling device 45 in the vertical direction, and can travel with the rolling device 45 maintained at an arbitrary height. The shift device 44 is provided between the elevating device 43 and the rolling device 45, and can shift the rolling device 45 in a direction orthogonal to the traveling direction of the rolling machine body 40. The rolling device 45 has a plurality of rolling units 45a. The plurality of rolling compaction units 45 a are arranged in a direction orthogonal to the traveling direction of the compacting press main body 40, and can roll over the width of the compacting press main body 40. Each rolling pressure unit 45a can roll the clay-based material by drawing it downward, and the plurality of rolling pressure units 45a can roll the clay-based material at different timings.

上述した転圧機4は、リモートコントローラ(図示せず)を操作することにより、前後の方向に任意の速度で走行し、粘土系材料を転圧することが可能となっている。   The above-described rolling compactor 4 can travel at an arbitrary speed in the front-rear direction and roll the clay-based material by operating a remote controller (not shown).

上述した本発明の実施の形態に係る粘土系遮水層の敷設方法は、撒出機2を躯体被覆層17の上面を走行するように配備する一方、敷均機3と転圧機4とを躯体被覆層17と側部壁体部18との間を走行するように配備する。そして、撒出機2が敷均機3と転圧機4とに先行して走行することにより、上方から躯体被覆層17と側部壁体部18との間に画成された狭隘部19に粘土系材料(例えば、ベントナイト系粘土材)を撒き出すようになっている。一方、敷均機3が撒出機2に追従して進行することにより、躯体被覆層17と側部壁体部18との間に画成された狭隘部19に撒き出された粘土系材料が敷き均されるとともに軽度に締め固められる(予備転圧)。他方、転圧機4が敷均機3に続いて走行することにより、敷き均されるとともに締め固められた粘土系材料が更に締め固められる(本転圧)。   The clay-based impermeable layer laying method according to the above-described embodiment of the present invention deploys the brewing machine 2 so as to run on the upper surface of the casing covering layer 17, while the spreader 3 and the compactor 4 are provided. It arrange | positions so that it may drive | work between the housing cover layer 17 and the side wall part 18. FIG. Then, the brewing machine 2 travels in advance of the spreader 3 and the compactor 4, so that the narrow portion 19 defined between the housing covering layer 17 and the side wall body portion 18 is formed from above. A clay-based material (for example, bentonite-based clay material) is sprinkled out. On the other hand, when the spreader 3 follows the brewing machine 2, the clay-based material squeezed out into the narrow part 19 defined between the skeleton covering layer 17 and the side wall part 18. Is spread and lightly compacted (preliminary compaction). On the other hand, when the rolling mill 4 travels following the spreader 3, the clay-based material that has been spread and compacted is further compacted (main rolling).

上述した本発明の実施の形態に係る敷均機3は、進行方向に回転自在なガイド車輪32を振動プレート31の側方に突出する態様で備えたので、振動プレート31は躯体被覆層17及び側部壁体部18の側壁とガイド車輪32を介して離隔した状態で進行する。したがって、敷均機3が躯体被覆層17及び側部壁体部18を傷付けることがない。   Since the spreader 3 according to the above-described embodiment of the present invention includes the guide wheel 32 that is rotatable in the traveling direction in a mode of protruding to the side of the vibration plate 31, the vibration plate 31 includes the casing covering layer 17 and It proceeds in a state of being separated from the side wall of the side wall portion 18 via the guide wheel 32. Therefore, the spreader 3 does not damage the casing covering layer 17 and the side wall portion 18.

また、リモートコントローラ(図示せず)により、敷均機3及び転圧機4を操作することができるので、狭隘部19においてオペレータが作業する必要がなく、例えば、躯体被覆層17の上からオペレータが敷均機3及び転圧機4を操作することができる。   Further, since the spreader 3 and the compactor 4 can be operated by a remote controller (not shown), there is no need for an operator to work in the narrow portion 19. The spreader 3 and the compactor 4 can be operated.

上述した本発明の実施の形態に係る粘土系遮水層の敷設方法によれば、躯体被覆層17と側部壁体部18との間に粘土系材料を撒き出す工程と、躯体被覆層17と側部壁体部18との間に撒き出された粘土系材料を締め固める工程との間に、撒き出された粘土系材料を敷き均す工程を設けたので、撒き出された粘土系材料を平坦に敷き均した後に締め固めることになり、絞め固められた粘土系遮水層の仕上がり密度を均一なものとすることができる。   According to the above-described method for laying a clay-based impermeable layer according to the embodiment of the present invention, the step of scraping clay-based material between the casing covering layer 17 and the side wall section 18, and the casing covering layer 17 Since the step of laying and leveling the clay-based material squeezed out between the step of compacting the clay-based material squeezed between the side wall body portion 18 and the side wall body portion 18 is carried out. The material is laid flat and then compacted, so that the finished density of the squeezed clay-based impermeable layer can be made uniform.

なお、上述した実施の形態に係る敷均機3の振動バイブレータ33が振動プレート31を進行させる態様で振動させるものとしたが、図4中二点鎖線で示すように、撒出機2に吊り下げたものであれば、振動バイブレータ33が振動プレート31を進行させるものでなくてもよい。   Although the vibration vibrator 33 of the spreader 3 according to the above-described embodiment is configured to vibrate in such a manner that the vibration plate 31 travels, the vibrator 33 is suspended from the brewing machine 2 as indicated by a two-dot chain line in FIG. If it is lowered, the vibration vibrator 33 may not advance the vibration plate 31.

本発明の実施の形態に係る粘土系遮水層の敷設方法を適用する低レベルの放射性廃棄物の埋設処分施設を示す横断面図である。It is a cross-sectional view which shows the burial disposal facility of the low level radioactive waste to which the laying method of the clay-type impermeable layer according to the embodiment of the present invention is applied. 本発明の実施の形態に係る粘土系遮水層の敷設方法を説明する正面図である。It is a front view explaining the laying method of the clay-type impermeable layer concerning an embodiment of the invention. 本発明の実施の形態に係る粘土系遮水層の敷設方法を説明する平面図である。It is a top view explaining the laying method of the clay-type impermeable layer concerning an embodiment of the invention. 本発明の実施の形態に係る粘土系遮水層の敷設方法を説明する縦断側面図である。It is a vertical side view explaining the laying method of the clay-type impermeable layer concerning an embodiment of the invention. 本発明の実施の形態に係る敷均機を示す概念図である。It is a conceptual diagram which shows the spreader which concerns on embodiment of this invention. 本発明の実施の形態に係る敷均機を示す概念図である。It is a conceptual diagram which shows the spreader which concerns on embodiment of this invention.

符号の説明Explanation of symbols

1 埋設処分施設
11 地下坑道
12 底部床盤部
13 底部遮水層
14 躯体コンクリート
15 放射性廃棄物
16 モルタル
17 躯体被覆層
18 側部壁体部
19 狭隘部
2 撒出機
20 撒出機本体
21 走行装置
22 ホッパー
23 フィーダ
3 敷均機
31 振動プレート
32 ガイド車輪
33 振動バイブレータ
34 ディスク
4 転圧機
40 転圧機本体
41 走行装置
42 ガイド車輪
43 昇降装置
44 シフト装置
45 転圧装置
DESCRIPTION OF SYMBOLS 1 Burial disposal facility 11 Underground tunnel 12 Bottom floor board part 13 Bottom water shielding layer 14 Body concrete 15 Radioactive waste 16 Mortar 17 Body covering layer 18 Side wall part 19 Narrow part 2 Unloading machine 20 Unloading machine body 21 Running Device 22 Hopper 23 Feeder 3 Spreading machine 31 Vibration plate 32 Guide wheel 33 Vibration vibrator 34 Disc 4 Compactor 40 Compactor body 41 Traveling device 42 Guide wheel 43 Lifting device 44 Shift device 45 Compactor 45

Claims (4)

撒き出された粘土系材料を敷き均す振動プレートと、前記振動プレートに搭載され、前記振動プレートを振動させる振動バイブレータとを備えた敷均機において、
進行方向に回転自在なガイド車輪を前記振動プレートの側方に突出する態様で備えたことを特徴とする敷均機。
In a floor leveling machine comprising a vibration plate that spreads the clay-based material that has been sprinkled, and a vibration vibrator that is mounted on the vibration plate and vibrates the vibration plate,
A spreader comprising a guide wheel that is rotatable in a traveling direction so as to protrude laterally of the vibration plate.
前記振動バイブレータが前記振動プレートを進行させる態様で振動することを特徴とする請求項1に記載の敷均機。   The spreader according to claim 1, wherein the vibration vibrator vibrates in a manner to advance the vibration plate. 粘土系材料を撒き出す撒出機に前記振動プレートが吊り下げられたことを特徴とする請求項1に記載の敷均機。   The spreader according to claim 1, wherein the vibration plate is suspended from a brewing machine for rolling out clay-based material. 廃棄物格納躯体を収容した躯体コンクリートの周りを囲繞することにより構築され、横断面が矩形形状を有した躯体被覆層と、該躯体被覆層の側面と所定の間隔を有して対向するように構築された側部壁体部との間に、粘土系材料を撒き出した後に該粘土系材料を締め固めることにより、前記躯体被覆層と前記側部壁体部との間に粘土系遮水層を敷設する粘土系遮水層の敷設方法において、
躯体被覆層と側部壁体部との間に粘土系材料を撒き出す工程と、躯体被覆層と側部壁体部との間に撒き出された粘土系材料を締め固める工程との間に、撒き出された粘土系材料を敷き均す工程を設けたことを特徴とする粘土系遮水層の敷設方法。
It is constructed by surrounding the surrounding concrete containing the waste storage casing, and the casing covering layer having a rectangular cross section is opposed to the side face of the casing covering layer with a predetermined interval. Clay-based water shielding between the frame-covering layer and the side wall-body by crushing the clay-based material between the constructed side-wall body and then compacting the clay-based material In the method of laying a clay-based impermeable layer that lays a layer,
Between the step of rolling out the clay-based material between the enclosure covering layer and the side wall portion and the step of compacting the clay-based material drawn out between the enclosure covering layer and the side wall portion. A method for laying a clay-based impermeable layer, comprising a step of spreading and leveling the clay-based material that has been sprinkled.
JP2007109620A 2007-04-18 2007-04-18 Laying a clay-based impermeable layer Active JP4888716B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007109620A JP4888716B2 (en) 2007-04-18 2007-04-18 Laying a clay-based impermeable layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007109620A JP4888716B2 (en) 2007-04-18 2007-04-18 Laying a clay-based impermeable layer

Publications (2)

Publication Number Publication Date
JP2008266948A true JP2008266948A (en) 2008-11-06
JP4888716B2 JP4888716B2 (en) 2012-02-29

Family

ID=40046801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007109620A Active JP4888716B2 (en) 2007-04-18 2007-04-18 Laying a clay-based impermeable layer

Country Status (1)

Country Link
JP (1) JP4888716B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010275746A (en) * 2009-05-27 2010-12-09 Ohbayashi Corp Vibrating compactor and compacting method using the same
JP2013076221A (en) * 2011-09-29 2013-04-25 Taisei Corp Compaction method for granulated substance
JP2014020161A (en) * 2012-07-20 2014-02-03 Taisei Corp Method for compacting agglomerated material and artificial barrier

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277703A (en) * 1985-06-04 1986-12-08 大旭建機株式会社 Vibration consolidating machine
JPS62268415A (en) * 1986-05-17 1987-11-21 Fudo Constr Co Ltd Vibro-compaction work for upper layer of ground
JPS63197299A (en) * 1987-02-12 1988-08-16 株式会社日立ホームテック Oxygen deficiency alarm
JPH0233806A (en) * 1988-07-21 1990-02-05 Taiyo Yuden Co Ltd Metallized paste composition
JPH02145295A (en) * 1988-11-28 1990-06-04 Nitsuteku Daiboode Kk Punching blade
JPH0369011A (en) * 1989-08-07 1991-03-25 Tokin Corp Perpendicular magnetic recording medium and production thereof
JP2003184110A (en) * 2001-12-25 2003-07-03 Ohbayashi Corp Vertical filling method retaining wall
JP2003239287A (en) * 2002-02-14 2003-08-27 Shimizu Corp Construction navigation system of heavy equipment for land formation work
JP2004012356A (en) * 2002-06-07 2004-01-15 Shimizu Corp Working method and construction system of high density clay-based soil material
JP2004060261A (en) * 2002-07-29 2004-02-26 Ohbayashi Corp Construction method and construction device for slope seepage control work and apparatus carrying device
JP2004225453A (en) * 2003-01-27 2004-08-12 Inbakkusu:Kk Construction method of civil engineering structure

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277703A (en) * 1985-06-04 1986-12-08 大旭建機株式会社 Vibration consolidating machine
JPS62268415A (en) * 1986-05-17 1987-11-21 Fudo Constr Co Ltd Vibro-compaction work for upper layer of ground
JPS63197299A (en) * 1987-02-12 1988-08-16 株式会社日立ホームテック Oxygen deficiency alarm
JPH0233806A (en) * 1988-07-21 1990-02-05 Taiyo Yuden Co Ltd Metallized paste composition
JPH02145295A (en) * 1988-11-28 1990-06-04 Nitsuteku Daiboode Kk Punching blade
JPH0369011A (en) * 1989-08-07 1991-03-25 Tokin Corp Perpendicular magnetic recording medium and production thereof
JP2003184110A (en) * 2001-12-25 2003-07-03 Ohbayashi Corp Vertical filling method retaining wall
JP2003239287A (en) * 2002-02-14 2003-08-27 Shimizu Corp Construction navigation system of heavy equipment for land formation work
JP2004012356A (en) * 2002-06-07 2004-01-15 Shimizu Corp Working method and construction system of high density clay-based soil material
JP2004060261A (en) * 2002-07-29 2004-02-26 Ohbayashi Corp Construction method and construction device for slope seepage control work and apparatus carrying device
JP2004225453A (en) * 2003-01-27 2004-08-12 Inbakkusu:Kk Construction method of civil engineering structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010275746A (en) * 2009-05-27 2010-12-09 Ohbayashi Corp Vibrating compactor and compacting method using the same
JP2013076221A (en) * 2011-09-29 2013-04-25 Taisei Corp Compaction method for granulated substance
JP2014020161A (en) * 2012-07-20 2014-02-03 Taisei Corp Method for compacting agglomerated material and artificial barrier

Also Published As

Publication number Publication date
JP4888716B2 (en) 2012-02-29

Similar Documents

Publication Publication Date Title
US4927297A (en) Leak prevention structure, method and apparatus
JP4888716B2 (en) Laying a clay-based impermeable layer
KR101528674B1 (en) Embedding method of waste by step solum utilizing stony mountain or a steep slope
JP4835922B2 (en) Compaction machine
JP5131512B2 (en) Laying a clay-based impermeable layer
JP4566890B2 (en) Tunnel lining concrete placing method and wife formwork device
JP2004012356A (en) Working method and construction system of high density clay-based soil material
JP6498253B1 (en) Pipe burying method
US6247875B1 (en) Method and apparatus utilizing a hollow beam for constructing subterranean walls comprised of granular material
JP2005273255A (en) Concrete tamping device of arch crown part of tunnel lining
JP2008013964A (en) Gallery closing method and gallery closing apparatus
JP5528049B2 (en) Tunnel drilling equipment
JP6276594B2 (en) Sloped excavation method and apparatus, and sloped underground continuous wall construction method
JP4858831B2 (en) Compaction machine
JP2004060261A (en) Construction method and construction device for slope seepage control work and apparatus carrying device
JP2016500411A (en) Shaft drilling rig
JP4811730B2 (en) Tunnel closing device and tunnel closing method
JP2003248086A (en) Storage method for burying waste
JP2010281038A (en) Earth retaining method
JP3235967B2 (en) Tunnel forming method and tunnel for forming tunnel
JP2017110366A (en) Pile head vibration device and pile head processing method using the same
JP2010031564A (en) Basement pillar installation method and construction method for underground structure
JPH0725391Y2 (en) Floor concrete leveling device
JP4652295B2 (en) Shield plate end treatment method for concrete structure and traveling construction machine
JP2516831Y2 (en) Self-propelled roller compactor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20091225

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110511

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110517

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110712

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20111108

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20111130

R150 Certificate of patent or registration of utility model

Ref document number: 4888716

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20141222

Year of fee payment: 3