JP2015086629A - Tent sheet - Google Patents

Tent sheet Download PDF

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JP2015086629A
JP2015086629A JP2013227783A JP2013227783A JP2015086629A JP 2015086629 A JP2015086629 A JP 2015086629A JP 2013227783 A JP2013227783 A JP 2013227783A JP 2013227783 A JP2013227783 A JP 2013227783A JP 2015086629 A JP2015086629 A JP 2015086629A
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sheet
tent
sheet member
string
reinforcing bar
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JP6222826B2 (en
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康丈 生井
Yasutake Ikui
康丈 生井
泰彦 猪口
Yasuhiko Inoguchi
泰彦 猪口
弘志 道嶋
Hiroshi Michijima
弘志 道嶋
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Taisei Corp
Sato Kogyo Co Ltd
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Taisei Corp
Sato Kogyo Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a tent sheet that is easy to manufacture, and can be repeatedly used.SOLUTION: A tent sheet 10 covers the inside of a pit 1 from above. The tent sheet 10 includes a flexible sheet member 20 in a substantially conic shape which has been subjected to waterproof processing, an annular suspension member 30 which is provided at a top part of the sheet member 20, and a reinforcement belt 40 which is provided on the reverse surface of the sheet member 20, and extends radially from the top part to the outer edge of the sheet member 20. Consequently, an opening/closing device which opens and closes the sheet is not necessary unlike before, so the tent sheet is easy to manufacture and can be repeatedly used.

Description

本発明は、テントシートに関する。詳しくは、立坑内を上から覆うテントシートに関する。   The present invention relates to a tent sheet. Specifically, it relates to a tent sheet that covers the shaft from above.

従来より、雨天時にコンクリートを打設すると、コンクリート表面のセメント成分などが雨で流されて、コンクリートの品質が低下する。そこで、従来より、コンクリート打設箇所を覆うテントシートが提案されている（特許文献１参照）。   Conventionally, when concrete is placed in the rain, cement components on the concrete surface are washed away by rain, and the quality of the concrete deteriorates. Therefore, conventionally, a tent sheet that covers a concrete placement site has been proposed (see Patent Document 1).

このテントシートは、４本の傘骨組み部材と、これら傘骨組み部材に連結され傘骨組み部材を開閉させる開閉機構と、傘骨組み部材の全体に亘って被せられた防水シートと、を備える。
このテントシートをクレーンで吊り上げて、コンクリート打設箇所の上に配置し、開閉装置を駆動して防水シートを開いて、コンクリート打設箇所を覆う。これにより、雨天時であっても、コンクリートの品質が低下するのを防止できる。 The tent sheet includes four umbrella frame members, an opening / closing mechanism that is connected to the umbrella frame members to open and close the umbrella frame members, and a waterproof sheet that covers the entire umbrella frame members.
The tent sheet is lifted by a crane and placed on the concrete placement site, the opening / closing device is driven to open the waterproof sheet, and the concrete placement site is covered. Thereby, even when it is raining, it can prevent that the quality of concrete falls.

特開平１０‐２６６５７８号公報Japanese Patent Laid-Open No. 10-266578

しかしながら、以上のテントシートでは、大掛かりな開閉機構が必要となるため、テントシートの製作コストがかかる、という問題があった。また、コンクリート打設現場では、コンクリートが飛散して開閉機構に付着し、開閉機構を繰り返し使用することが困難になる、という問題があった。   However, the tent sheet described above has a problem in that it requires a large opening / closing mechanism, and thus the production cost of the tent sheet is high. In addition, in the concrete placement site, there is a problem that the concrete is scattered and adheres to the opening / closing mechanism, making it difficult to use the opening / closing mechanism repeatedly.

本発明は、製作容易でかつ繰り返し使用できるテントシートを提供することを目的とする。   An object of the present invention is to provide a tent sheet that is easy to manufacture and can be used repeatedly.

請求項１に記載のテントシート（例えば、後述のテントシート１０）は、立坑（例えば、後述の立坑１）内を上から覆うテントシートであって、防水加工された略円錐形の可撓性を有するシート部材（例えば、後述のシート部材２０）と、当該シート部材の頂部に設けられた環状の吊り部材（例えば、後述の吊り部材３０）と、前記シート部材の裏面に設けられて当該シート部材の頂部から外縁に向かって放射状に延びる補強ベルト（例えば、後述の補強ベルト４０）と、を備えることを特徴とする。   The tent sheet (for example, a tent sheet 10 described later) according to claim 1 is a tent sheet that covers a shaft (for example, a shaft 1 described later) from above, and has a substantially conical flexibility that is waterproof. A sheet member (for example, a later-described sheet member 20), an annular suspension member (for example, a later-described suspension member 30) provided on the top of the sheet member, and the sheet provided on the back surface of the sheet member And a reinforcing belt (for example, a reinforcing belt 40 described later) extending radially from the top of the member toward the outer edge.

この発明によれば、可撓性を有するシート部材を用いてテントシートを構成したので、テントシートの頂部を立坑の内壁面から吊り下げ支持するとともに、このテントシートの外縁を施工箇所の周囲に固定することで、テントシートを拡げて固定できる。よって、従来のようなシートを開閉する開閉装置が不要となるので、簡易な構造であり、製作容易でかつ繰り返し使用できる。
また、吊り部材にクレーンのフックを引っ掛けて、立坑の内部に吊り下ろすことで、テントシートを容易に施工箇所まで運搬できる。
また、シート部材を補強ベルトで裏打ちしたので、シート部材の耐久性を向上できる。 According to this invention, since the tent sheet is configured using the flexible sheet member, the top of the tent sheet is supported by being suspended from the inner wall surface of the shaft, and the outer edge of the tent sheet is provided around the construction site. By fixing, the tent sheet can be expanded and fixed. This eliminates the need for a conventional opening / closing device for opening and closing the seat, and thus has a simple structure, is easy to manufacture, and can be used repeatedly.
Moreover, a tent sheet | seat can be easily conveyed to a construction location by hooking the hook of a crane on a suspension member and suspending it in the inside of a vertical shaft.
Further, since the sheet member is lined with the reinforcing belt, the durability of the sheet member can be improved.

請求項２に記載のテントシートは、前記シート部材は、展開された状態で扇形状であり、当該シート部材には、当該扇形状のシート部材の弦同士を接合する接合部材（例えば、後述の面ファスナ２４Ａ、２４Ｂ）が設けられることを特徴とする。   The tent sheet according to claim 2, wherein the sheet member is fan-shaped in a deployed state, and the sheet member has a joining member (for example, described later) that joins the strings of the fan-shaped sheet member to each other. Hook fasteners 24A, 24B) are provided.

接合部材としては、面ファスナや紐が挙げられる。
この発明によれば、布状の部材を扇形状に加工してシート部材とし、この扇形状のシート部材の弦同士を接合部材で接合するだけで、シート部材を形成できるので、テントシートをさらに容易に製作できる。 Examples of the joining member include a hook-and-loop fastener and a string.
According to the present invention, the cloth-like member is processed into a fan-shaped sheet member to form a sheet member, and the sheet member can be formed simply by bonding the strings of the fan-shaped sheet member with the bonding member. Easy to manufacture.

請求項３に記載のテントシートは、前記シート部材の頂部には、少なくとも２本の紐状部材（例えば、後述の紐状部材５０）が取り付けられ、前記シート部材の外縁には、所定間隔おきに第２の紐状部材（例えば、後述の第２の紐状部材６２）が取り付けられていることを特徴とする。   In the tent sheet according to claim 3, at least two string-like members (for example, a string-like member 50 described later) are attached to the top of the sheet member, and the outer edge of the sheet member is spaced at predetermined intervals. A second string-like member (for example, a second string-like member 62 described later) is attached to the first and second strings.

この発明によれば、シート部材の頂部に紐状部材を取り付けたので、この紐状部材を用いて、テントシートの頂部を容易に吊り下げ支持できる。
また、シート部材の外縁に所定間隔おきに第２の紐状部材を取り付けたので、これら第２の紐状部材を用いて、テントシートの外端を容易に固定できる。 According to this invention, since the string-like member is attached to the top of the sheet member, the top of the tent sheet can be easily suspended and supported using this string-like member.
Moreover, since the 2nd string-like member was attached to the outer edge of the sheet member at predetermined intervals, the outer end of the tent sheet can be easily fixed using these second string-like members.

請求項４に記載のテントシートは、前記立坑には、内壁面（例えば、後述の内壁面２）に沿って立上がり鉄筋（例えば、後述の立上がり鉄筋４）がダブル配筋され、当該立上がり鉄筋の内側の鉄筋（例えば、後述の内側の鉄筋５）と外側の鉄筋（例えば、後述の外側の鉄筋６）との間には、止水板（例えば、後述の止水板７）が打ち込まれており、前記第２の紐状部材は、前記立上がり鉄筋の外側の鉄筋に固定されていることを特徴とする。   In the tent sheet according to claim 4, rising reinforcing bars (for example, rising reinforcing bars 4 described later) are double-arranged along the inner wall surface (for example, inner wall surface 2 described later) in the vertical shaft, Between the inner reinforcing bar (for example, inner reinforcing bar 5 described later) and the outer reinforcing bar (for example, outer reinforcing bar 6 described later), a water stop plate (for example, water stop plate 7 described later) is driven. The second string-like member is fixed to a reinforcing bar outside the rising reinforcing bar.

この発明によれば、第２の紐状部材を立上がり鉄筋の外側の鉄筋に固定したので、テントシートが外側の鉄筋の近傍まで延びて、内側の鉄筋を覆うことになる。内側の鉄筋と外側の鉄筋との間には、止水板が打ち込まれているので、テントシート上の雨水は、テントシートの外縁から落下して、止水板の外側に流れ込むので、止水板の内側が浸水するのを防止できる。   According to the present invention, since the second string-like member is fixed to the outer reinforcing bar of the rising reinforcing bar, the tent sheet extends to the vicinity of the outer reinforcing bar to cover the inner reinforcing bar. Since a water stop plate is driven between the inner rebar and the outer rebar, rainwater on the tent sheet falls from the outer edge of the tent sheet and flows to the outside of the water stop plate. The inside of the board can be prevented from being flooded.

本発明によれば、可撓性を有するシート部材を用いてテントシートを構成したので、テントシートの頂部を立坑の内壁面から吊り下げ支持するとともに、このテントシートの外縁を施工箇所の周囲に固定することで、テントシートを拡げて固定できる。よって、従来のようなシートを開閉する開閉装置が不要となるので、簡易な構造であり、製作容易でかつ繰り返し使用できる。また、吊り部材にクレーンのフックを引っ掛けて、立坑の内部に吊り下ろすことで、テントシートを容易に施工箇所まで運搬できる。また、シート部材を補強ベルトで裏打ちしたので、シート部材の耐久性を向上できる。   According to the present invention, since the tent sheet is configured by using the flexible sheet member, the top of the tent sheet is supported by being suspended from the inner wall surface of the shaft, and the outer edge of the tent sheet is provided around the construction site. By fixing, the tent sheet can be expanded and fixed. This eliminates the need for a conventional opening / closing device for opening and closing the seat, and thus has a simple structure, is easy to manufacture, and can be used repeatedly. Moreover, a tent sheet | seat can be easily conveyed to a construction location by hooking the hook of a crane on a suspension member and suspending it in the inside of a vertical shaft. Further, since the sheet member is lined with the reinforcing belt, the durability of the sheet member can be improved.

本発明の一実施形態に係るテントシートが取り付けられた立坑の側断面図である。It is a sectional side view of the shaft with the tent sheet concerning one embodiment of the present invention attached. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図１の破線Ｂで囲まれた部分の拡大図である。FIG. 2 is an enlarged view of a portion surrounded by a broken line B in FIG. 1. 前記実施形態に係るテントシートの展開図である。It is an expanded view of the tent sheet | seat which concerns on the said embodiment. 前記実施形態に係るテントシートの外縁部分の拡大平面図である。It is an enlarged plan view of the outer edge portion of the tent sheet according to the embodiment. 前記実施形態に係るテントシートの取り付け方法を説明するための図である。It is a figure for demonstrating the attachment method of the tent sheet | seat which concerns on the said embodiment.

以下、本発明の一実施形態について、図面を参照しながら説明する。
図１は、本発明の一実施形態に係るテントシート１０が取り付けられた立坑１の側断面図である。図２は、図１のＡ−Ａ断面図である。図３は、図１の破線Ｂで囲まれた部分の拡大図である。
立坑１は、地中で略鉛直に延びる円筒形状であり、内壁面２で囲まれている。この立坑１の内側の下端面には、鉄筋コンクリート造の床躯体３が構築されており、この床躯体３の外周つまり内壁面２に沿って、立上がり鉄筋４が設けられている。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side sectional view of a shaft 1 to which a tent sheet 10 according to an embodiment of the present invention is attached. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is an enlarged view of a portion surrounded by a broken line B in FIG.
The vertical shaft 1 has a cylindrical shape extending substantially vertically in the ground and is surrounded by an inner wall surface 2. A reinforced concrete floor frame 3 is constructed on the lower end surface inside the shaft 1, and a rising reinforcing bar 4 is provided along the outer periphery of the floor frame 3, that is, along the inner wall surface 2.

立上がり鉄筋４は、内側の鉄筋５と外側の鉄筋６とがダブル配筋されている。内側の鉄筋５と外側の鉄筋６との間には、止水板７が打ち込まれている。   The rising reinforcing bar 4 has an inner reinforcing bar 5 and an outer reinforcing bar 6 double arranged. A water stop plate 7 is driven between the inner reinforcing bar 5 and the outer reinforcing bar 6.

テントシート１０は、円錐形状であり、立坑１内の立上がり鉄筋４に囲まれた部分を施行箇所として上から覆うものである。
このテントシート１０は、防水加工された略円錐形のシート部材２０と、このシート部材２０の頂部に設けられた環状の吊り部材３０と、シート部材２０の裏面に設けられてシート部材２０の頂部から外縁に向かって放射状に延びる補強ベルト４０と、を備える。 The tent sheet 10 has a conical shape and covers a portion surrounded by the rising reinforcing bars 4 in the shaft 1 from above as an enforcement location.
The tent sheet 10 includes a waterproof substantially conical sheet member 20, an annular suspension member 30 provided on the top of the sheet member 20, and the top of the sheet member 20 provided on the back surface of the sheet member 20. And a reinforcing belt 40 extending radially from the outer edge toward the outer edge.

シート部材２０の頂部には、２本の紐状部材５０が取り付けられている。これら紐状部材５０は、立坑１の内壁面２の互いに対向する位置に固定されている。
また、シート部材２０の外縁には、所定間隔おきに第２の紐状部材６２が取り付けられている（図５参照）。これら第２の紐状部材６２は、立上がり鉄筋４の外側の鉄筋６に固定されている。 Two string members 50 are attached to the top of the sheet member 20. These string-like members 50 are fixed at positions facing each other on the inner wall surface 2 of the shaft 1.
Moreover, the 2nd string-like member 62 is attached to the outer edge of the sheet | seat member 20 at predetermined intervals (refer FIG. 5). These second string members 62 are fixed to the reinforcing bars 6 outside the rising reinforcing bars 4.

これによりテントシート１０の上の雨水は、図３中矢印で示すように、シート部材２０の外縁から落下して、止水板７の外側に流れ込むようになっている。   As a result, rain water on the tent sheet 10 falls from the outer edge of the sheet member 20 and flows to the outside of the water stop plate 7 as indicated by arrows in FIG.

図４は、テントシート１０の展開図である。
シート部材２０は、可撓性を有する布状の部材を扇形状に切断加工したものである。
である。シート部材２０の弦２１Ａ、２１Ｂには、接合部材としての面ファスナ２４Ａ、２４Ｂが設けられる。この面ファスナ２４Ａ、２４Ｂ同士を接合することで、シート部材２０が円錐状となる。そして、シート部材２０の中心２２は、円錐の頂部となり、シート部材２０の弧２３は、円錐の外縁となる。 FIG. 4 is a development view of the tent sheet 10.
The sheet member 20 is obtained by cutting a flexible cloth-like member into a fan shape.
It is. Hook fasteners 24A and 24B as joining members are provided on the strings 21A and 21B of the sheet member 20. By joining the surface fasteners 24A and 24B, the sheet member 20 has a conical shape. The center 22 of the sheet member 20 is the top of the cone, and the arc 23 of the sheet member 20 is the outer edge of the cone.

図５は、テントシート１０の外縁部分の拡大平面図である。
シート部材２０の弧２３には、所定間隔おきに貫通孔６０が設けられ、これら貫通孔６０には、それぞれ、ハトメ６１が取り付けられて、第２の紐状部材６２が取り付けられている。 FIG. 5 is an enlarged plan view of the outer edge portion of the tent sheet 10.
Through holes 60 are provided in the arc 23 of the sheet member 20 at predetermined intervals, and eyelets 61 and second string members 62 are attached to the through holes 60, respectively.

上述の吊り部材３０および紐状部材５０は、シート部材２０の中心２２に取り付けられている。
また、補強ベルト４０は、可撓性を有する布状の直線状の部材であり、シート部材２０の中心２２から弧２３に向かって放射状に延びている。 The above-described suspension member 30 and string-like member 50 are attached to the center 22 of the sheet member 20.
The reinforcing belt 40 is a flexible cloth-like linear member, and extends radially from the center 22 of the sheet member 20 toward the arc 23.

以上のテントシート１０を製作する手順は、以下のようになる。
まず、布状の部材を扇形状に切断加工してシート部材２０を形成し、面ファスナ２４Ａ、２４Ｂを取り付ける。次に、このシート部材２０に貫通孔６０を設けてハトメ６１を取り付ける。次に、吊り部材３０、紐状部材５０、および第２の紐状部材６２を取り付ける。その後、この扇形状のシート部材２０の弦同士を面ファスナ２４Ａ、２４Ｂで接合する。 The procedure for manufacturing the above tent sheet 10 is as follows.
First, the sheet-like member 20 is formed by cutting the cloth-like member into a fan shape, and the surface fasteners 24A and 24B are attached. Next, the through hole 60 is provided in the sheet member 20 and the eyelet 61 is attached. Next, the hanging member 30, the string-like member 50, and the second string-like member 62 are attached. Thereafter, the strings of the fan-shaped sheet member 20 are joined by the hook-and-loop fasteners 24A and 24B.

以上のテントシート１０を取り付ける際は、図６に示すように、テントシート１０の吊り部材３０をクレーンのフック３１に引っ掛けて、立坑１の内部に吊り下ろす。その後、図１に示すように、２本の紐状部材５０を立坑１の内壁面２に取り付けるとともに、第２の紐状部材６２を立上がり鉄筋４の外側の鉄筋６に結んで固定する。   When attaching the tent sheet 10 as described above, as shown in FIG. 6, the suspension member 30 of the tent sheet 10 is hooked on the hook 31 of the crane and suspended inside the shaft 1. After that, as shown in FIG. 1, the two string-like members 50 are attached to the inner wall surface 2 of the shaft 1, and the second string-like member 62 is connected to the reinforcing bar 6 outside the rising reinforcing bar 4 and fixed.

本実施形態によれば、以下のような効果がある。
（１）可撓性を有するシート部材２０を用いてテントシート１０を構成したので、テントシート１０の頂部を立坑１の内壁面２から吊り下げ支持するとともに、このテントシートの外縁を立坑１の立上がり鉄筋４に固定することで、テントシートを拡げて固定できる。よって、従来のようなシートを開閉する開閉装置が不要となるので、簡易な構造であり、製作容易でかつ繰り返し使用できる。 According to this embodiment, there are the following effects.
(1) Since the tent sheet 10 is configured using the flexible sheet member 20, the top of the tent sheet 10 is supported by being suspended from the inner wall surface 2 of the shaft 1, and the outer edge of the tent sheet is supported by the shaft 1 By fixing to the rising reinforcing bars 4, the tent sheet can be expanded and fixed. This eliminates the need for a conventional opening / closing device for opening and closing the seat, and thus has a simple structure, is easy to manufacture, and can be used repeatedly.

また、吊り部材３０にクレーンのフック３１を引っ掛けて、立坑１の内部に吊り下ろすことで、テントシート１０を容易に施工箇所まで運搬できる。
また、シート部材２０を補強ベルト４０で裏打ちしたので、シート部材２０の耐久性を向上できる。 Moreover, the tent sheet | seat 10 can be easily conveyed to a construction location by hooking the hook 31 of a crane on the suspension member 30, and suspending it in the inside of the vertical shaft 1. FIG.
Further, since the sheet member 20 is lined with the reinforcing belt 40, the durability of the sheet member 20 can be improved.

（２）布状の部材を扇形状に加工してシート部材２０とし、この扇形状のシート部材２０の弦２１Ａ、２１Ｂ同士を面ファスナ２４Ａ、２４Ｂで接合するだけで、シート部材２０を形成できるので、テントシート１０をさらに容易に製作できる。   (2) The sheet member 20 can be formed by simply processing the cloth-like member into a fan-shaped sheet member 20 and joining the strings 21A and 21B of the fan-shaped sheet member 20 with the surface fasteners 24A and 24B. Therefore, the tent sheet 10 can be manufactured more easily.

（３）シート部材２０の頂部に紐状部材５０を取り付けたので、この紐状部材５０を用いて、テントシートの頂部を容易に吊り下げ支持できる。
また、シート部材２０の外縁に所定間隔おきに第２の紐状部材６２を取り付けたので、これら第２の紐状部材６２を用いて、テントシートの外端を容易に固定できる。 (3) Since the string-like member 50 is attached to the top of the sheet member 20, the top of the tent sheet can be easily suspended and supported using the string-like member 50.
Moreover, since the 2nd string-like member 62 was attached to the outer edge of the sheet member 20 at predetermined intervals, the outer end of the tent sheet can be easily fixed using these second string-like members 62.

（４）第２の紐状部材６２を立上がり鉄筋４の外側の鉄筋６に固定したので、テントシート１０が外側の鉄筋６の近傍まで延びて、内側の鉄筋５を覆うことになる。内側の鉄筋５と外側の鉄筋６との間には、止水板７が打ち込まれているので、テントシート１０上の雨水は、テントシート１０の外縁から落下して、止水板７の外側に流れ込むので、止水板７の内側の施工箇所が浸水するのを防止できる。   (4) Since the second string-like member 62 is fixed to the outer reinforcing bar 6 of the reinforcing bar 4, the tent sheet 10 extends to the vicinity of the outer reinforcing bar 6 and covers the inner reinforcing bar 5. Since the water stop plate 7 is driven between the inner rebar 5 and the outer rebar 6, the rain water on the tent sheet 10 falls from the outer edge of the tent sheet 10, and the outside of the water stop plate 7. Therefore, it is possible to prevent the construction site inside the water stop plate 7 from being flooded.

なお、本発明は前記実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。   It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.

１…立坑
２…内壁面
３…床躯体
４…立上がり鉄筋
５…内側の鉄筋
６…外側の鉄筋
７…止水板
１０…テントシート
２０…シート部材
２１Ａ、２１Ｂ…弦
２２…中心
２３…弧
２４Ａ、２４Ｂ…面ファスナ（接合部材）
３０…吊り部材
３１…フック
４０…補強ベルト
５０…紐状部材
６０…貫通孔
６１…ハトメ
６２…第２の紐状部材 DESCRIPTION OF SYMBOLS 1 ... Vertical shaft 2 ... Inner wall surface 3 ... Floor frame 4 ... Reinforcing bar 5 ... Inside reinforcing bar 6 ... Outer reinforcing bar 7 ... Water stop plate 10 ... Tent sheet 20 ... Sheet member 21A, 21B ... String 22 ... Center 23 ... Arc 24A , 24B ... surface fastener (joining member)
DESCRIPTION OF SYMBOLS 30 ... Suspension member 31 ... Hook 40 ... Reinforcement belt 50 ... String-like member 60 ... Through-hole 61 ... Eyelet 62 ... Second string-like member

Claims (4)

立坑内を上から覆うテントシートであって、
防水加工された略円錐形の可撓性を有するシート部材と、
当該シート部材の頂部に設けられた環状の吊り部材と、
前記シート部材の裏面に設けられて当該シート部材の頂部から外縁に向かって放射状に延びる補強ベルトと、を備えることを特徴とするテントシート。 A tent sheet covering the shaft from above,
A substantially conical flexible sheet member that is waterproof,
An annular suspension member provided at the top of the sheet member;
A tent sheet comprising: a reinforcing belt provided on the back surface of the sheet member and extending radially from the top of the sheet member toward the outer edge. 前記シート部材は、展開された状態で扇形状であり、
当該シート部材には、当該扇形状のシート部材の弦同士を接合する接合部材が設けられることを特徴とする請求項１に記載のテントシート。 The sheet member is fan-shaped when unfolded,
The tent sheet according to claim 1, wherein the sheet member is provided with a joining member that joins the strings of the fan-shaped sheet member. 前記シート部材の頂部には、少なくとも２本の紐状部材が取り付けられ、
前記シート部材の外縁には、所定間隔おきに第２の紐状部材が取り付けられていることを特徴とする請求項１または２に記載のテントシート。 At least two string-like members are attached to the top of the sheet member,
The tent sheet according to claim 1 or 2, wherein a second string-like member is attached to the outer edge of the sheet member at predetermined intervals. 前記立坑には、内壁面に沿って立上がり鉄筋がダブル配筋され、
当該立上がり鉄筋の内側の鉄筋と外側の鉄筋との間には、止水板が打ち込まれており、
前記第２の紐状部材は、前記立上がり鉄筋の外側の鉄筋に固定されていることを特徴とする請求項３に記載のテントシート。 The vertical shaft has double reinforcing bars along the inner wall,
A water stop plate is driven between the inner reinforcing bar and the outer reinforcing bar,
The tent sheet according to claim 3, wherein the second string-like member is fixed to a reinforcing bar outside the rising reinforcing bar.
JP2013227783A 2013-11-01 2013-11-01 Shaft structure Expired - Fee Related JP6222826B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7339874B2 (en) 2019-12-11 2023-09-06 株式会社竹中工務店 Support structure for waterproof sheet
JP7384422B2 (en) 2021-02-12 2023-11-21 協立工業株式会社 film membrane structure

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US5787914A (en) * 1997-04-08 1998-08-04 Greywall; Dennis S. Hunting canopy
JP2000145354A (en) * 1998-11-11 2000-05-26 Kumagai Gumi Co Ltd Deep foundation excavation method in bedrock
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JPS61256987A (en) * 1985-05-10 1986-11-14 太陽工業株式会社 Curing cover for wave-extinguishing block and manufacture
JPH06330638A (en) * 1993-05-20 1994-11-29 Gakunan Kensetsu Kk Tent for caisson type pile foundation work
US5787914A (en) * 1997-04-08 1998-08-04 Greywall; Dennis S. Hunting canopy
JP2000145354A (en) * 1998-11-11 2000-05-26 Kumagai Gumi Co Ltd Deep foundation excavation method in bedrock
JP2008308864A (en) * 2007-06-14 2008-12-25 Kajima Corp Side wall and method of constructing the same
JP2010196292A (en) * 2009-02-24 2010-09-09 Keriage Kensetsu Kk Construction method of building
JP2013011096A (en) * 2011-06-29 2013-01-17 Keriage Kensetsu Kk Construction device for building and construction technique for building

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7339874B2 (en) 2019-12-11 2023-09-06 株式会社竹中工務店 Support structure for waterproof sheet
JP7384422B2 (en) 2021-02-12 2023-11-21 協立工業株式会社 film membrane structure

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