JP2004270167A - Construction method of outer waterproofing, waterproofing structure and structure - Google Patents

Construction method of outer waterproofing, waterproofing structure and structure Download PDF

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Publication number
JP2004270167A
JP2004270167A JP2003058461A JP2003058461A JP2004270167A JP 2004270167 A JP2004270167 A JP 2004270167A JP 2003058461 A JP2003058461 A JP 2003058461A JP 2003058461 A JP2003058461 A JP 2003058461A JP 2004270167 A JP2004270167 A JP 2004270167A
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JP
Japan
Prior art keywords
waterproof
waterproofing
rod
separator
shaped member
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.)
Pending
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JP2003058461A
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Japanese (ja)
Inventor
Toru Kawaguchi
徹 川口
Haruka Ogawa
晴果 小川
Masato Sugano
征人 菅野
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.)
HOKUTO KINZOKU KOGYO KK
Obayashi Corp
Original Assignee
HOKUTO KINZOKU KOGYO KK
Obayashi Corp
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Priority to JP2003058461A priority Critical patent/JP2004270167A/en
Publication of JP2004270167A publication Critical patent/JP2004270167A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an application method of outer waterproofing, simply, quickly and efficiently performing the construction of a waterproofing layer and a preparation for form installation, a waterproof structure and a structure. <P>SOLUTION: In this construction method, with the preparation for form installation, outer waterproofing is applied in an object for a waterproofing construction such as an earth retaining wall surface. The method includes: a process of forming a waterproof layer on the surface of the object for the waterproofing construction and penetrating a bar-like member such as a screw; and a process of fitting bearing metals such as an angle and a bracket and a separator for holding a sheathing board interval to the bar-like member projected from the waterproofing layer. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、山留め壁面等の防水施工対象において型枠設置準備と共に外防水を施す方法、防水構造、構造物に関する。
【0002】
【従来の技術】
地下構造物を構築するに際しては地盤掘削が行われ、その掘削壁面には親杭横矢板工法やソイル柱列壁工法などによる支保工が施工される。また、この支保工を形成する矢板または親杭、心材等の壁体に対向する適宜な間隔に堰板が建込みされ、前記地下構造物のコンクリート打設用の型枠が設置されることになる。この堰板の建込みに際しては、前記支保工の壁体と適宜な距離を維持して躯体厚を確保すると共に、コンクリート打設時に作用する型枠(堰板含む)への負荷を支持するため、型枠と支保工との間をセパレータを介して固定している。
【0003】
このようにセパレータを取付ける場合、例えばH形鋼などからなる親杭のフランジにアングルピースを溶接(或いはスタット打ち等)し、更にこのアングルピースにセパレータアンカーを溶接し、当該セパレータアンカーにセパレータを取付けていた。
ところで、前記のように壁体と型枠との間にコンクリートを打設してコンクリート壁を構築した場合、このコンクリート壁には、その厚さ方向に多数のセパレータ等が貫通したまま残置されることになる。このため、壁体側で地下水の漏れが生じた場合には、この地下水がセパレータ等を伝わってコンクリート壁の内側に漏水するという課題がある。
そこでこの課題を解決すべく、前記壁体にそって防水層を形成する手法が採用される。この場合、例えば前記アングルピースおよびセパレータアンカーの壁体への固定後に、当該アングルピース等を壁体も含めて防水シート等で被覆してしまうといった工法や、或いは壁体への防水シート等の貼設後に前記アングルピース等の固定を行うといった工法が提案されている(特許第3083271号公報参照)。
【0004】
【特許文献1】
特許第3083271号公報
【0005】
【発明が解決しようとする課題】
しかしながら、従来の手法には改善すべき課題が残されていた。すなわち、壁体にそって防水層を施工するとした場合でも、セパレータ等が当該防水層を貫通するための貫通孔を形成する必要がある。この場合、前記貫通孔をセパレータ断面だけの小孔とできるが、他方、アングルピースやセパレータアンカーと壁体との取り合い部分に精度良く防水層を形成するのが困難で施工不良等が生じやすいという問題があった。
【0006】
一方、アングルピースやセパレータ等の固定に先立って防水層を壁体に施工する場合、当該施工の後に防水層を適宜切開してセパレータの数だけ開口を設け、この開口を通じて壁体に対するアングルピースの溶接作業を行うことが必要となる。切開器具等を用いて防水層に多数の孔を設けるために作業が煩雑となり、施工効率も著しく低下する。また、防水層に設けた開口周り全てにコーキング材等でシール処理を施す必要もあった。その他、コンクリート打設時に生じたブリージング水が、アングルピースおよびセパレータアンカーと壁体との接合位置で停滞し施工不良の原因となるおそれも存在した。
【0007】
そこで本発明はこのような課題に着目してなされたもので、防水層の施工や型枠設置準備を簡便迅速かつ効率的に実現する外防水の施工方法、施工装置、構造物を提供することを目的とする。
【0008】
【課題を解決するための手段】
上記目的を達成する本発明の外防水の施工方法は、山留め壁面等の防水施工対象において型枠設置準備と共に外防水を施す方法であって、前記防水施工対象表面に対する防水層の形成およびねじ等の棒状部材の貫入を行う工程と、当該工程の後、前記防水層より突出している前記棒状部材にアングルやブラケット等の受け金物および堰板間隔保持用のセパレータを取付ける工程と、を含むことを特徴とする。
【0009】
第2の発明は、第1の発明において、前記棒状部材は、前記防水施工対象表面に設けた取付穴にねじ込まれるタッピングねじ部と、当該タッピングねじ部を前記取付穴にねじ込んだ際に防水施工対象表面から突出し前記受け金物と機械接合する金物固定部と、を有してなることを特徴とする。
【0010】
第3の発明は、第1または第2の発明において、前記防水層の形成を、防水施工対象表面に対する防水シートの貼設、防水材の塗布或いは吹付け処理の少なくともいずれかにより実行し、前記防水シートを貼設する場合には、当該貼設の後に前記棒状部材の貫入を行うことを特徴とする。
【0011】
第4の発明は、第1または第2の発明において、前記防水層の形成を、防水施工対象表面に対する防水シートの貼設、防水材の塗布或いは吹付け処理の少なくともいずれかにより実行し、前記防水材の塗布或いは吹き付け処理を行う場合には、当該処理に先だって前記棒状部材の貫入を行うことを特徴とする。
【0012】
第5の発明は、第1〜4のいずれかの発明において、前記受け金物が備える凸部或いは当該受け金物を貫通して突出する前記棒状部材の端部とセパレータアンカーとを機械接合させ、当該セパレータアンカーにセパレータを固定することを特徴とする。
【0013】
第6の発明は、山留め壁面等の防水施工対象において型枠設置準備と共に外防水を施す装置であって、前記防水施工対象表面に対する防水層の形成および棒状部材の貫入を行う手段と、前記防水層の形成および棒状部材の貫入の後、前記防水層より突出している前記棒状部材にアングルやブラケット等の受け金物および堰板間隔保持用のセパレータを取付ける手段と、を備えることを特徴とする外防水の施工装置にかかる。
【0014】
第7の発明は、前記外防水の施工方法による防水構造を備えた構造物にかかる。
【0015】
【発明の実施の形態】
以下に本発明の実施形態について図面を用いて詳細に説明する。図1は本実施形態1における外防水の施工方法の手順を示す説明図である。地下構造物を構築するに際しては地盤掘削が行われ、その掘削壁面には親杭横矢板工法やソイル柱列壁工法などによる支保工が施工される。例えば固化ソイルあるいは掘削地盤5の表面にはH鋼等を矢板とする適宜な支保工10が施される。前記矢板も含めこの支保工10を、防水施工対象とし、以後壁体10と称する。
【0016】
当該壁体10には、これに対向する適宜な間隔に堰板が建込みされ、前記地下構造物のコンクリート打設用の型枠が設置されることになる。この堰板の建込みに際しては、前記壁体10と適宜な距離を維持して躯体厚を確保すると共に、コンクリート打設時に作用する型枠(堰板含む)への負荷を支持するため、型枠と壁体10との間をセパレータを介して固定する。
【0017】
この壁体10には、前記セパレータを取付けるアングルやブラケット等の受け金物を固定するための棒状部材11が取付られている。図3にこの棒状部材11の一例としてのねじ部材を示している。前記ねじ部材11は、前記壁体10の表面に設けた取付穴にねじ込まれるタッピングねじ部12と、当該タッピングねじ部12を前記取付穴にねじ込んだ際に壁体表面から突出し前記受け金物と機械接合する金物固定部13とからなる。
【0018】
この金物固定部13には、例えば雄ねじが切られており、後に受け金物をナット等を利用して機械接合する際に用いられる。また前記タッピングねじ部12の端部にはナット状の工具掛け部14が備わり、電動工具等による回転力のタッピングねじ部12への伝達を実現する。
【0019】
このように壁体10にタッピングねじ部12をねじこんでねじ部材11を固定した状態が図1(a)である。また、ねじ状部材12の壁体への固定が完了したならば、ねじ部材11の外方から防水層15の配設を行う。図示した例では防水層15に防水シートを採用した例を示している。この防水シート15は、例えば薄いゴムとベントナイト層との2層構造を備えて、ゴムによる遮水性とベントナイトの吸水に伴う膨張性とから適宜な防水性を発現するものとすれば好適である。
【0020】
この防水シート15は、前記ねじ部材11との当接位置を貫通するよう処理を行うことで、図1(b)に示す如く、金物固定部13を外側に突出させる。
また、防水シート15から突出した金物固定部13には、止水部材16を装着させる。この止水部材16としては、弾性および粘着性を有する材質で、例えば非加硫ブチルゴム製の止水材と、この止水材を補強するゴム等の軟質弾性素材製の補強材との2層から構成される、ドーナツ状の板材が採用できる(図中では1層のみとした)。この止水部材16を金物固定部13に挿通して適宜締結および押圧することで、前記防水層15とねじ部材11との密着をはかり防水効果を確実なものとする。
【0021】
防水層15および止水部材16が装着されたならば、金物固定部13にアングルピースやブラケット等の受け金物17を挿通させる。この時、当該受け金物17には金物固定部13と挿通可能な孔が形成されているものとする。挿通された受け金物17はナット18およびワッシャ19により前記止水部材16に押圧されることとなる。ここまでの状況を図1(c)に示す。
【0022】
ここで突出している前記ねじ部材11の金物固定部13には、セパレータアンカー20を接合させる。前記金物固定部13には雄ねじを切っており、一方、セパレータアンカー20の内面には雌ねじ21が切ってある。従って、金物固定部13とセパレータアンカー20とは螺着可能となっている。(d)図に示す如く、セパレータアンカーは金物固定部13に螺着し、確実に固定される。このセパレータアンカー20にセパレータ端を固定させることで、前記ねじ部材11の位置での堰板間隔保持用のセパレータ設置が完了する。以後、上述の工程を棒状部材11毎に繰り返す。
【0023】
図2は本実施形態2における外防水の施工方法の手順を示す説明図である。上記実施形態では、防水層15としての防水シートを貼設する前に、棒状部材11の貫入を行う例を示したが、他方、防水シートの貼設後に棒状部材11の貫入を行う例も想定できる。この場合、壁体10の表面には予め防水層15を形成しているものとする。この防水層15に対して前記止水部材16を介して棒状部材としての前記ねじ部材11を貫入させる(図2(a))。この場合、前記止水部材16と防水層15とが密着し、前記実施形態と同様の防水効果を奏する。
【0024】
壁体10に貫入されて固定されたねじ部材11は金物固定部13を突出させている。当該金物固定部13に前期同様、受け金物17を挿通させ、ボルト18およびワッシャ18で例えば工具掛け部14端面にて締結固定する(同(c)図)。受け金物17が固定されれば、この受け金物より突出する前記金物固定部13の雄ねじに向けてセパレータアンカー20の雌ねじ21を螺着させる。これにより、同図(d)に示す如く、セパレータアンカー20の棒状部材11への固定がなされる。このセパレータアンカー20にセパレータ端を固定させることで、前記ねじ部材11の位置での堰板間隔保持用のセパレータ設置が完了する。以後、上述の工程を棒状部材11毎に繰り返す。
【0025】
なお、防水層15としては、前記防水シートの例だけでなく、他にも防水施工対象表面に対する防水材の塗布或いは吹付け処理を採用することもできる。これらの場合でも、防水層の形成手順が異なるだけで上記した施工方法をそのまま採用することができる。
【0026】
【発明の効果】
以上詳細に説明したように、本発明の外防水の施工方法、施工装置、構造物によれば、アングルピース等を壁体に溶接するための貫通孔を逐一防水層に形成する必要がなく、施工コストおよび施工時間を低減可能となり施工効率も向上する。また、アングルピースやセパレータアンカーと壁体との取り合い部分であっても精度良く防水層を形成することが容易となる。更に、コンクリート打設時に生じたブリージング水が、アングルピースおよびセパレータアンカーと壁体との間で通過可能となり施工不良を抑制することにもつながる。
【0027】
しかして、防水層の施工や型枠設置準備を簡便迅速かつ効率的に実現する外防水の施工方法、防水構造、構造物を提供可能となる。
【図面の簡単な説明】
【図1】本実施形態1における外防水の施工方法の手順を示す説明図である。
【図2】本実施形態2における外防水の施工方法の手順を示す説明図である。
【図3】本実施形態における棒状部材の一例を示す図である。
【符号の説明】
5 掘削地盤
10 壁体、支保工
11 棒状部材、ねじ部材
12 タッピングねじ部
13 金物固定部
14 工具掛け部
15 防水層、防水シート
16 止水部材
17 受け金物
20 セパレータアンカー
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method, a waterproof structure, and a structure for providing external waterproofing together with preparation for formwork installation on a waterproof construction target such as a mountain retaining wall.
[0002]
[Prior art]
When constructing an underground structure, ground excavation is performed, and the excavation wall surface is supported by a parent pile horizontal sheet pile method or a soil column wall method. In addition, a weir plate is erected at an appropriate interval facing a wall body such as a sheet pile or a parent pile, a core material, etc., which forms this support, and a formwork for concrete casting of the underground structure is installed. Become. When installing the weir plate, it is necessary to maintain a proper distance from the wall of the shoring structure to secure the frame thickness and to support the load on the formwork (including the weir plate) acting at the time of placing concrete. The frame and the shoring are fixed via a separator.
[0003]
When the separator is attached in this manner, for example, an angle piece is welded (or staked, etc.) to a flange of a parent pile made of, for example, H-section steel, and a separator anchor is welded to the angle piece, and a separator is attached to the separator anchor. I was
By the way, when a concrete wall is constructed by casting concrete between the wall body and the formwork as described above, a large number of separators and the like are left on the concrete wall while penetrating in the thickness direction. Will be. For this reason, when groundwater leaks on the wall side, there is a problem that this groundwater leaks inside the concrete wall through the separator and the like.
In order to solve this problem, a method of forming a waterproof layer along the wall is adopted. In this case, for example, after fixing the angle piece and the separator anchor to the wall, the angle piece and the like are covered with a waterproof sheet or the like including the wall, or a waterproof sheet or the like is attached to the wall. A method of fixing the angle piece or the like after installation has been proposed (see Japanese Patent No. 3083271).
[0004]
[Patent Document 1]
Japanese Patent No. 3083271 [0005]
[Problems to be solved by the invention]
However, there is a problem to be improved in the conventional method. That is, even if a waterproof layer is provided along the wall, it is necessary to form a through hole for a separator or the like to penetrate the waterproof layer. In this case, the through hole can be a small hole only in the cross section of the separator, but on the other hand, it is difficult to accurately form a waterproof layer at a portion where the angle piece or the separator anchor and the wall body are joined, and construction failure or the like is likely to occur. There was a problem.
[0006]
On the other hand, when the waterproof layer is applied to the wall body before fixing the angle pieces and the separator, etc., the waterproof layer is appropriately cut out after the installation to provide openings as many as the number of the separators, and through this opening, the angle piece is attached to the wall body. It is necessary to perform welding work. Since a large number of holes are formed in the waterproof layer using a cutting instrument or the like, the operation becomes complicated, and the construction efficiency is significantly reduced. In addition, it was necessary to seal the entire area around the opening provided in the waterproof layer with a caulking material or the like. In addition, there was also a possibility that breathing water generated at the time of placing concrete stagnates at a joint position between the angle piece and the separator anchor and the wall, thereby causing a poor construction.
[0007]
Therefore, the present invention has been made in view of such problems, and provides an external waterproofing construction method, construction device, and structure that realizes simple and quick and efficient construction of a waterproof layer and preparation of formwork installation. With the goal.
[0008]
[Means for Solving the Problems]
The method of performing outer waterproofing of the present invention to achieve the above object is a method of performing outer waterproofing together with preparation of a formwork in a waterproofing target such as a mountain retaining wall, and forming a waterproof layer on the surface of the waterproofing target and screws and the like. And a step of attaching a receiving member such as an angle or a bracket and a separator for holding a dam plate interval to the rod-like member projecting from the waterproof layer after the step. Features.
[0009]
According to a second invention, in the first invention, the rod-shaped member is provided with a tapping screw portion which is screwed into a mounting hole provided on the surface to be waterproofed, and a waterproofing process when the tapping screw portion is screwed into the mounting hole. And a metal fixing portion protruding from the target surface and mechanically joined to the receiving metal.
[0010]
In a third aspect based on the first or second aspect, the formation of the waterproof layer is performed by at least one of attaching a waterproof sheet to a surface to be waterproofed, applying a waterproof material, or spraying. When a waterproof sheet is attached, the rod-shaped member is penetrated after the attachment.
[0011]
In a fourth aspect based on the first or second aspect, the formation of the waterproof layer is performed by at least one of attaching a waterproof sheet to a surface to be waterproofed, applying a waterproof material, or spraying. When applying or spraying a waterproof material, the rod-shaped member is penetrated prior to the treatment.
[0012]
According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the convex portion provided in the receiving metal member or the end of the rod-shaped member that penetrates and projects through the receiving metal member is mechanically joined to a separator anchor. The separator is fixed to the separator anchor.
[0013]
A sixth aspect of the present invention is an apparatus for performing external waterproofing together with preparation of a formwork on a waterproofing construction object such as a mountain retaining wall, and means for forming a waterproof layer and penetrating a rod-like member on the surface of the waterproofing construction object; After the formation of the layer and the penetration of the rod-shaped member, means for attaching a receiving member such as an angle or a bracket and a separator for maintaining the interval between the weir plates to the rod-shaped member protruding from the waterproof layer. Hanging on waterproof construction equipment.
[0014]
The seventh invention relates to a structure provided with a waterproof structure by the method of performing outer waterproofing.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing a procedure of a method for constructing the outer waterproofing according to the first embodiment. When constructing an underground structure, ground excavation is performed, and the excavation wall surface is supported by a parent pile horizontal sheet pile method or a soil column wall method. For example, the surface of the solidified soil or the excavated ground 5 is provided with a suitable support 10 using H steel or the like as a sheet pile. The shoring 10 including the sheet pile is subjected to waterproofing and is hereinafter referred to as a wall 10.
[0016]
A barrier plate is erected at an appropriate interval facing the wall body 10, and a formwork for placing concrete in the underground structure is installed. When installing the weir plate, a proper distance from the wall body 10 is maintained to secure the frame thickness and to support the load on the formwork (including the weir plate) acting at the time of placing concrete. The frame and the wall 10 are fixed via a separator.
[0017]
The wall 10 is provided with a rod-shaped member 11 for fixing a receiving metal such as an angle or a bracket for mounting the separator. FIG. 3 shows a screw member as an example of the rod-shaped member 11. The screw member 11 includes a tapping screw portion 12 that is screwed into a mounting hole provided on the surface of the wall body 10, and the tapping screw portion 12 that projects from the wall body surface when the tapping screw portion 12 is screwed into the mounting hole, and is connected to the machine. And a metal fixing portion 13 to be joined.
[0018]
The metal fixing portion 13 has, for example, an external thread, and is used later when the receiving metal is mechanically joined using a nut or the like. Further, a nut-shaped tool hook 14 is provided at an end of the tapping screw 12 to realize transmission of torque from the electric tool to the tapping screw 12.
[0019]
FIG. 1A shows a state in which the tapping screw portion 12 is screwed into the wall body 10 to fix the screw member 11 in this manner. When the fixing of the screw member 12 to the wall is completed, the waterproof layer 15 is provided from outside the screw member 11. The illustrated example shows an example in which a waterproof sheet is used for the waterproof layer 15. The waterproof sheet 15 preferably has a two-layer structure of, for example, a thin rubber and a bentonite layer, and suitably exhibits appropriate waterproofness from the water barrier property of the rubber and the swelling property accompanying the absorption of bentonite.
[0020]
The waterproof sheet 15 is processed so as to penetrate the contact position with the screw member 11, so that the metal fixing portion 13 projects outward as shown in FIG. 1B.
Further, a water stopping member 16 is attached to the metal fixing portion 13 protruding from the waterproof sheet 15. The water-stopping member 16 is made of a material having elasticity and adhesiveness, for example, two layers of a water-stopping material made of non-vulcanized butyl rubber and a reinforcing material made of a soft elastic material such as rubber for reinforcing the water-stopping material. , A donut-shaped plate material can be adopted (only one layer is shown in the figure). By inserting the water stop member 16 through the metal fixing portion 13 and fastening and pressing as appropriate, the waterproof layer 15 and the screw member 11 are brought into close contact to ensure a waterproof effect.
[0021]
When the waterproof layer 15 and the water stopping member 16 are mounted, the metal fittings 13 such as an angle piece and a bracket are inserted through the metal fixing part 13. At this time, it is assumed that the receiving hardware 17 is formed with a hole through which the hardware fixing portion 13 can be inserted. The inserted metal fitting 17 is pressed against the water stopping member 16 by the nut 18 and the washer 19. The situation so far is shown in FIG.
[0022]
Here, a separator anchor 20 is joined to the metal fixing portion 13 of the screw member 11 protruding. The metal fixing portion 13 is externally threaded, while the internal surface of the separator anchor 20 is internally threaded. Therefore, the metal fixing part 13 and the separator anchor 20 can be screwed together. (D) As shown in the figure, the separator anchor is screwed to the metal fixing portion 13 and is securely fixed. By fixing the separator end to the separator anchor 20, the installation of the separator for maintaining the gap between the weir plates at the position of the screw member 11 is completed. Thereafter, the above-described steps are repeated for each bar-shaped member 11.
[0023]
FIG. 2 is an explanatory diagram showing a procedure of a method for constructing the outer waterproofing according to the second embodiment. In the above embodiment, the example in which the rod-shaped member 11 is penetrated before attaching the waterproof sheet as the waterproof layer 15 is shown. On the other hand, an example in which the rod-shaped member 11 is penetrated after attaching the waterproof sheet is also assumed. it can. In this case, it is assumed that the waterproof layer 15 is formed on the surface of the wall body 10 in advance. The screw member 11 as a rod-shaped member penetrates into the waterproof layer 15 via the water blocking member 16 (FIG. 2A). In this case, the water stopping member 16 and the waterproof layer 15 are in close contact with each other, and have the same waterproof effect as in the above embodiment.
[0024]
The screw member 11 penetrated and fixed to the wall body 10 protrudes the metal fixing portion 13. As in the previous case, the receiving metal member 17 is inserted through the metal fixing portion 13 and fastened and fixed with the bolt 18 and the washer 18 at, for example, the end surface of the tool hooking portion 14 (FIG. (C)). When the metal receiving member 17 is fixed, the female screw 21 of the separator anchor 20 is screwed toward the male screw of the metal fixing portion 13 protruding from the metal receiving member. As a result, the separator anchor 20 is fixed to the rod-shaped member 11 as shown in FIG. By fixing the separator end to the separator anchor 20, the installation of the separator for maintaining the gap between the weir plates at the position of the screw member 11 is completed. Thereafter, the above-described steps are repeated for each bar-shaped member 11.
[0025]
In addition, as the waterproof layer 15, not only the example of the waterproof sheet described above but also a coating or spraying process of a waterproof material on the surface to be waterproofed can be adopted. Even in these cases, the above-described construction method can be adopted as it is, only in the procedure of forming the waterproof layer.
[0026]
【The invention's effect】
As described in detail above, according to the outer waterproofing construction method, construction apparatus, and structure of the present invention, it is not necessary to form a through-hole for welding an angle piece or the like to a wall one by one in the waterproof layer, Construction cost and construction time can be reduced, and construction efficiency is improved. In addition, it is easy to form the waterproof layer with high accuracy even at a portion where the angle piece or the separator anchor and the wall are joined. Furthermore, breathing water generated at the time of placing concrete can pass between the angle piece and the separator anchor and the wall, which leads to suppression of construction failure.
[0027]
Thus, it is possible to provide an external waterproofing construction method, a waterproof structure, and a structure that realize the construction of the waterproof layer and the preparation of the formwork easily and quickly and efficiently.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a procedure of a method of constructing an outside waterproof according to a first embodiment.
FIG. 2 is an explanatory view showing a procedure of a method of constructing an outside waterproof according to a second embodiment.
FIG. 3 is a diagram illustrating an example of a rod-shaped member according to the embodiment.
[Explanation of symbols]
Reference Signs List 5 excavated ground 10 wall body, support 11 bar-shaped member, screw member 12 tapping screw portion 13 metal fixing portion 14 tool hooking portion 15 waterproof layer, waterproof sheet 16 water stopping member 17 receiving metal member 20 separator anchor

Claims (7)

山留め壁面等の防水施工対象において型枠設置準備と共に外防水を施す方法であって、前記防水施工対象表面に対する防水層の形成およびねじ等の棒状部材の貫入を行う工程と、当該工程の後、前記防水層より突出している前記棒状部材にアングルやブラケット等の受け金物および堰板間隔保持用のセパレータを取付ける工程と、を含むことを特徴とする外防水の施工方法。A method of performing external waterproofing together with preparation of a formwork in a waterproof construction target such as a mountain retaining wall surface, a step of forming a waterproof layer and penetrating a rod-like member such as a screw on the waterproof construction target surface, and after the step, Attaching a receiving member such as an angle or a bracket and a separator for maintaining a gap between the weir plates to the rod-shaped member projecting from the waterproof layer. 前記棒状部材は、前記防水施工対象表面に設けた取付穴にねじ込まれるタッピングねじ部と、当該タッピングねじ部を前記取付穴にねじ込んだ際に防水施工対象表面から突出し前記受け金物と機械接合する金物固定部と、を有してなることを特徴とする請求項1に記載の外防水の施工方法。The rod-shaped member includes a tapping screw portion that is screwed into a mounting hole provided on the surface to be waterproofed, and a metal member that projects from the surface to be waterproofed and mechanically joins with the receiving metal member when the tapping screw portion is screwed into the mounting hole. The outer waterproofing method according to claim 1, further comprising a fixing portion. 前記防水層の形成を、防水施工対象表面に対する防水シートの貼設、防水材の塗布或いは吹付け処理の少なくともいずれかにより実行し、前記防水シートを貼設する場合には、当該貼設の後に前記棒状部材の貫入を行うことを特徴とする請求項1または2に記載の外防水の施工方法。The formation of the waterproof layer is performed by pasting a waterproof sheet on the surface to be waterproofed, at least one of applying or spraying a waterproof material, and attaching the waterproof sheet, after attaching the waterproof sheet. The outer waterproofing method according to claim 1, wherein the rod-shaped member is penetrated. 前記防水層の形成を、防水施工対象表面に対する防水シートの貼設、防水材の塗布或いは吹付け処理の少なくともいずれかにより実行し、前記防水材の塗布或いは吹き付け処理を行う場合には、当該処理に先だって前記棒状部材の貫入を行うことを特徴とする請求項1または2に記載の外防水の施工方法。The formation of the waterproof layer is performed by applying at least one of a waterproof sheet to a surface to be waterproofed, applying a waterproof material, and spraying, and performing the waterproof material applying or spraying process. The method of claim 1 or 2, wherein the rod-shaped member is penetrated prior to the step. 前記受け金物が備える凸部或いは当該受け金物を貫通して突出する前記棒状部材の端部とセパレータアンカーとを機械接合させ、当該セパレータアンカーにセパレータを固定することを特徴とする請求項1〜4のいずれかに記載の外防水の施工方法。5. The separator anchored to the separator anchor by mechanically joining a protrusion provided on the receiving hardware or an end of the rod-shaped member that penetrates and projects through the receiving hardware to a separator anchor. 6. The waterproofing method according to any one of the above. 山留め壁面等の防水施工対象において型枠設置準備と共に外防水を施す防水構造であって、前記防水施工対象表面に対する防水層の形成および棒状部材の貫入を行う手段と、前記防水層の形成および棒状部材の貫入の後、前記防水層より突出している前記棒状部材にアングルやブラケット等の受け金物および堰板間隔保持用のセパレータを取付ける手段と、を備えることを特徴とする外防水の防水構造。A waterproof structure for providing waterproofing together with preparation of a formwork in a waterproof construction object such as a mountain retaining wall surface, a means for forming a waterproof layer and penetrating a rod-shaped member on the surface of the waterproof construction object, and forming the waterproof layer and forming a rod-shaped member. Means for attaching a receiving member such as an angle or a bracket and a separator for maintaining a gap between the weir plates to the rod-shaped member protruding from the waterproof layer after the member has penetrated. 前記外防水の施工方法による防水構造を備えた構造物。A structure provided with a waterproof structure according to the above outer waterproofing construction method.
JP2003058461A 2003-03-05 2003-03-05 Construction method of outer waterproofing, waterproofing structure and structure Pending JP2004270167A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015014082A (en) * 2013-07-03 2015-01-22 征人 菅野 Water cutoff structure of concrete form support part
CN113482176A (en) * 2021-07-29 2021-10-08 青岛海发置业有限公司 Waterproof and anti-pulling-crack damage structure for outer vertical surface of deep foundation pit structure and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015014082A (en) * 2013-07-03 2015-01-22 征人 菅野 Water cutoff structure of concrete form support part
CN113482176A (en) * 2021-07-29 2021-10-08 青岛海发置业有限公司 Waterproof and anti-pulling-crack damage structure for outer vertical surface of deep foundation pit structure and construction method thereof

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