JP4310212B2 - Filling through holes in buildings - Google Patents

Filling through holes in buildings Download PDF

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JP4310212B2
JP4310212B2 JP2004052654A JP2004052654A JP4310212B2 JP 4310212 B2 JP4310212 B2 JP 4310212B2 JP 2004052654 A JP2004052654 A JP 2004052654A JP 2004052654 A JP2004052654 A JP 2004052654A JP 4310212 B2 JP4310212 B2 JP 4310212B2
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mortar
filling
hole
mold
opening
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JP2005240442A (en
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真名美 小貝
透 村上
雅幸 石渡
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Hitachi GE Nuclear Energy Ltd
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Description

本発明は、建屋の壁などの構成部材に配管・ダクト等を貫通させるために設けられた貫通穴の穴埋めをモルタルを充填することで行う穴埋め方法に関する。   The present invention relates to a hole filling method for filling a through hole provided for penetrating a pipe, a duct or the like in a structural member such as a building wall by filling mortar.

原子力発電プラント及び再処理プラントの建屋の構成部材である躯体には、配管・機器等を貫通させる為に、1プラント当たり数千箇所程度の貫通穴による開口部が設定され、配管・機器等を設置した後、貫通箇所の躯体に対する要求条件により選定された開口部の閉止(以下、穴埋めと称す)方法(以下、穴埋め方法と称す)により、開口部が閉止される。穴埋めの施工は、迅速かつ効率的であることが、プラントの工期短縮から鑑みても望ましい。   The housing, which is a component of the building of the nuclear power plant and the reprocessing plant, has openings with several thousand through holes per plant in order to allow piping and equipment to penetrate. After the installation, the opening is closed by a method of closing the opening (hereinafter referred to as a hole filling) method (hereinafter referred to as a hole filling method) selected according to the requirements for the housing of the penetrating portion. In view of shortening the construction period of the plant, it is desirable that the hole filling work be quick and efficient.

穴埋めは、躯体に要求される条件に従い、様々な方法が採用されるが、遮蔽・水密・気密・防火等、複数の要求条件に有効であるのが、モルタル充填による穴埋め方法である。モルタルによる穴埋め箇所のうち、遮蔽・水密・気密・防火等の要求箇所においては、モルタルの充填性が要求される。特に放射線の遮蔽要求箇所においては、放射線防護の観点から、モルタルを開口部空間に充填する際、モルタルが確実に充填され、硬化後のモルタルの比重が2.15g/cm3以上を満足していることが必須条件となる。 Various methods are employed for filling the hole in accordance with the conditions required for the housing, but the mortar filling method is effective for a plurality of required conditions such as shielding, watertightness, airtightness and fire prevention. Of the mortar filling points, mortar filling properties are required at the required points such as shielding, watertightness, airtightness, fire prevention, etc. In particular, in the radiation shielding requirements, from the viewpoint of radiation protection, when filling the opening space with mortar, the mortar is surely filled, and the specific gravity of the mortar after curing satisfies 2.15 g / cm 3 or more. It is a necessary condition.

しかしながら、穴埋め施工時に開口部にモルタルを充填する際、貫通穴内に空気が残留すると、モルタル硬化後に開口部内に空隙が生じ、モルタルの充填性が低下する為、充填性確保には、空気抜きの方法が重要なポイントとなる。特に、開口部上部は空隙が発生し易い傾向にあり、対策が必要であった。   However, when filling the opening with mortar at the time of filling the hole, if air remains in the through hole, a void is formed in the opening after the mortar is cured, and the filling property of the mortar is lowered. Is an important point. In particular, the upper part of the opening portion tends to generate voids, and countermeasures are required.

貫通穴にモルタルを充填する穴埋め工法としては次のようなものが存在している。   The following methods exist as hole filling methods for filling mortar into through holes.

(1)手詰め(手作業)による穴埋め工法
本施工方法は、原子力発電プラント及び再処理プラントの配管・機器等貫通開口部の穴埋め箇所のうち、モルタルを充填する箇所において、一般的に採用されている工法であり、モルタルを硬練りして球状に成形し、手作業で充填していく方法である。本施工方法は、硬練りしたモルタルを順次、手作業で空間部に積重ねるようにして充填していく為、空間部へのモルタル充填の確実性という面では優れているが、穴埋め作業に要する工数が大きい。また、狭隘箇所においては、作業者が寄付けず、穴埋めが困難となる。この対策として、効率的な施工方法の確立が必要であった。
(1) Hole filling method by hand-packing (manual work) This construction method is generally adopted in the places where mortar is filled among the filling holes in the through openings of piping and equipment of nuclear power plants and reprocessing plants. This is a method that involves kneading mortar into a spherical shape and filling it manually. This construction method is excellent in terms of certainty of mortar filling in the space part because it is filled with hard mortar by sequentially stacking it in the space part manually, but it is necessary for filling work The man-hour is large. Also, in narrow spaces, the operator does not come close and it is difficult to fill the hole. As a countermeasure, it was necessary to establish an efficient construction method.

(2)流し込みによる穴埋め工法
本施工方法は、建築により多く採用されている。壁面の場合は開口部の両端を、床面の場合は開口部の下面のみに型枠と呼ばれる板を取付ける。型枠は、モルタルを充填した際に、モルタルが開口部から外に流出しないように仮の閉止板として機能する。
(2) Cavity filling method by pouring This construction method is often used in architecture. In the case of a wall surface, plates called molds are attached to both ends of the opening, and in the case of a floor surface, only the lower surface of the opening is attached. The formwork functions as a temporary closing plate so that the mortar does not flow out of the opening when filled with the mortar.

壁面を例にとると、まず開口部の片面に型枠を設置・仮閉止し、次に反対側の面の開口部上部にモルタル充填(流し込み)用の角孔を設け、その下部の開口部は型枠で仮閉止する。モルタルはバケツまたは、容器に入れて角孔より流し込み、空間部を充填する。これが流し込みによる穴埋め工法である。尚、従来の工法では、型枠は木製または鉄製であった。   Taking the wall as an example, the mold is first placed and temporarily closed on one side of the opening, and then a square hole for filling (pouring) mortar is provided in the upper part of the opening on the opposite side. Is temporarily closed with a formwork. Mortar is poured into a bucket or container and poured from a square hole to fill the space. This is the filling method by pouring. In the conventional method, the formwork was made of wood or iron.

手詰め(手作業)による穴埋め工法と比較すると、穴埋め作業に要する工数は少ないが、モルタル充填の際、型枠の設置により、開口部内部のモルタル充填状況を外側から確認できないという難点がある。また、モルタルを充填・硬化した後は、型枠を取外し、表面を補修する必要があり、これにも多くの工数を要していた。   Compared to the hole filling method by hand filling (manual work), the number of man-hours required for the hole filling work is small, but there is a problem that the mortar filling state inside the opening cannot be confirmed from the outside due to the installation of the mold when filling the mortar. Also, after filling and curing the mortar, it was necessary to remove the mold and repair the surface, which also required a lot of man-hours.

(3)穴埋め工法ではないがポンプを用いたモルタルの型枠内への充填方法に以下のようなものが公知である。 (3) Although not a hole filling method, the following methods are known for filling mortar into molds using a pump.

即ち、枠体の内部に比較的下部からポンプでコンクリートを圧送して充填し、その充填に伴って、枠体の比較的上部から枠体内の空気を排気して充填性を向上させる(例えば、特許文献1参照)。   That is, concrete is pumped and filled into the inside of the frame from a relatively lower part by a pump, and along with the filling, the air in the frame is exhausted from the relatively upper part of the frame to improve the filling property (for example, Patent Document 1).

更には、試験体を対象としているが、透明なアクリル板を型枠としてボルトボックスの外観形状と同形に型枠を組み立てて試験体とし、その型枠内にポンプでモルタルを比較的下方から充填し、更には、比較的上方からその充填に対応して型枠内の空気の排気を行い、充填状況に関して型枠越しに視認による確認を行えるようにしたことが公知である(例えば、特許文献2参照)。   Furthermore, it is intended for test specimens, but a transparent acrylic plate is used as a mold to assemble the mold in the same shape as the external shape of the bolt box, and the mold is filled with mortar from a relatively lower position by a pump. Further, it is known that air in the mold is exhausted from the upper side corresponding to the filling from the upper side so that the filling status can be visually confirmed through the mold (for example, patent document). 2).

特開2002−227595号公報JP 2002-227595 A 特開2000−128611号公報JP 2000-128611 A

従来の技術はモルタルの充填性は高いが、効率化が望めない工法であるか、またはある程度効率化は図れるが、モルタル充填状況の確認が難しい工法となっており、一長一短があるものであった。また、穴埋め工法以外では、ポンプによるモルタルの型枠内への充填方法は公知ではあるが、ポンプでモルタルを充填しても空気が混在した状態で固化したり固化時点で収縮して間隙が生じたりする懸念があるので、その方法は穴埋め方法においては単純には採用されていなかった。   Although the conventional technology has high mortar filling properties, it is a construction method that cannot be improved in efficiency, or it can be improved to some extent, but it is difficult to check the mortar filling situation, and there are advantages and disadvantages . In addition to the hole filling method, the filling method of the mortar into the mold by a pump is well known, but even if the mortar is filled with the pump, it is solidified in a mixed state of air, or shrinks at the time of solidification, resulting in a gap. This method was not simply adopted in the hole filling method.

要するに、原子力発電プラント及び再処理プラントの配管・ダクト等貫通開口部のモルタルによる穴埋め箇所については、下記の課題が挙げられる。
(1)穴埋め施工時の工程尤度がないことから、穴埋め作業の効率化が必要である。
(2)遮蔽・水密・気密・防火等の要求箇所については、モルタルの充填性の確保が要求されるが、この為には、空間部に残留している空気抜きを確実に実施する方法の確立が必要である。
(3)特に遮蔽要求箇所については、比重2.15g/cm3以上を満足していることが必須条件である。
In short, the following problems can be mentioned with respect to the burying portions of the through openings such as piping and ducts of nuclear power plants and reprocessing plants.
(1) Since there is no process likelihood at the time of hole filling construction, it is necessary to improve the efficiency of hole filling work.
(2) For required parts such as shielding, watertightness, airtightness, fire prevention, etc., it is required to ensure the filling of the mortar. For this purpose, establishment of a method for reliably removing the air remaining in the space. is required.
(3) It is an indispensable condition that a specific gravity of 2.15 g / cm 3 or more is satisfied particularly for a shielding requirement portion.

本発明の目的は、モルタルによる穴埋め作業の効率化,充填性確保及び信頼性の向上を実現する穴埋め方法を提供することである。   An object of the present invention is to provide a hole-filling method that realizes the efficiency of hole-filling work with mortar, ensuring filling performance, and improving reliability.

本発明の課題を解決する為の手段としては、建屋の構成部材に横方向に貫通して設けられた貫通穴に中空構造物を通し、前記中空構造物が貫通する型枠を前記貫通穴の両端部に取り付け、その後、前記貫通穴内の前記中空構造物よりも上であって前記貫通穴内の最上面の間に空間が残存するように前記貫通穴内にモルタルを充填し、充填したモルタルが硬化した後、前記貫通穴内に残存した空間部に再度モルタルを充填する建屋の貫通穴の穴埋め方法が採用される。 As a means for solving the problems of the present invention, a hollow structure is passed through a through-hole provided in a building through a building in a lateral direction, and a mold frame through which the hollow structure passes is formed in the through-hole. Attach to both ends, and then fill the through hole with mortar so that there is a space above the hollow structure in the through hole and between the uppermost surfaces in the through hole, and the filled mortar is cured After that, a method of filling the through hole of the building is adopted in which the space remaining in the through hole is filled again with mortar.

更に、本発明の課題を解決する為の実施例に沿った具体的な手段においては、穴埋め作業の効率化対策として、原子力発電プラント及び再処理プラントの配管・機器等貫通開口部の穴埋め箇所のうち、モルタルを充填する箇所において、自吸・圧送可能なポンプを用いてモルタルを圧送し、空間部を充填する穴埋め工法(以下、モルタルポンプ工法と称す)を採用し、穴埋め箇所の充填性向上対策として、空間部の空気抜きを可能とする以下2つの工法を提供する。   Furthermore, in the concrete means according to the embodiment for solving the problems of the present invention, as a measure for improving the efficiency of the hole filling work, the filling point of the through opening of the nuclear power plant and the reprocessing plant such as the piping / equipment of the through opening is made. Of these, the mortar filling location uses a self-priming / pumpable pump to pump the mortar and fill the space (hereinafter referred to as the mortar pump construction method) to improve the filling performance of the filling location. As countermeasures, the following two construction methods that allow air to be removed from the space are provided.

即ち、(1)特に充填性を厳密に要求される箇所において、自吸・圧送可能なポンプを用いてモルタル充填を行う際、開口部の上面から50mm〜200mm程度下側の位置で一度モルタルの充填を中止し、充填したモルタルが硬化した後、硬練りしたモルタルを球状に成形し、押し込み治具等にて空間部に充填する工法(以下、二度打ち工法と称す)。
(2)(1)ほど厳密ではないが、充填性を要求される箇所において、自吸・圧送可能なポンプを用いてモルタル充填を行う際、開口部の両面に空気抜き箇所(ホース・配管・開口等)を設置し、そこから空間部に残留している空気を逃がして充填性を向上させる工法(以下、総称して空気抜きホース工法と称す)。
(3)穴埋め箇所の信頼性確保の対策として、モルタル穴埋め箇所において、開口部両端に取付ける型枠として、アクリル板又は強化ガラスを適用し、モルタル充填時に外部からモルタルの充填状況を確認可能とする工法を提供する。
That is, (1) When mortar filling is performed using a pump capable of self-priming and pumping particularly in places where the filling property is strictly required, once the mortar is placed at a position about 50 mm to 200 mm below the upper surface of the opening. After the filling is stopped and the filled mortar is cured, the kneaded mortar is formed into a spherical shape and filled into the space with an indentation jig or the like (hereinafter referred to as the double casting method).
(2) Although not as rigorous as (1), when mortar filling is performed using a self-priming / pressure-pumpable pump in places where filling properties are required, air vents (hose / piping / opening) are provided on both sides of the opening. Etc.), and a method of improving the filling property by releasing the air remaining in the space from there (hereinafter collectively referred to as the air vent hose method).
(3) As a measure to ensure the reliability of the burial location, an acrylic plate or tempered glass is applied as a mold to be attached to both ends of the opening in the mortar burial location, and the mortar filling status can be confirmed from the outside during mortar filling. Provide construction methods.

以上のように、本発明によれば、コンクリート構造物に開けられた穴を埋めるモルタルの充填性が良くなるので、その穴の部分における遮蔽性能が向上する効果が得られる。   As described above, according to the present invention, the filling property of the mortar that fills the hole formed in the concrete structure is improved, so that the effect of improving the shielding performance at the hole portion can be obtained.

以下、図面を用いて本発明の実施例を説明する。
1.二度打ち工法の実施例
本施工方法は、モルタルを二回に分けて開口部に充填する工法である。以下では、本発明の実施例として、二回に分けてモルタルを充填する工法で説明するが、開口部の大きさに応じて、二回以上の複数回に分けてモルタルを充填する工法も含むものである。また、本施工法では、充填性確保の要求が厳密な箇所を前提として、無収縮モルタルを使用するが、充填性の確保の要求条件に応じて、普通モルタルを使用することも可能である。更に、ポンプ圧送時の充填に普通モルタルを使用し、モルタルが固化した、開口部上部の空間部に充填するモルタルとしては無収縮モルタルを使用することも可能である。
Embodiments of the present invention will be described below with reference to the drawings.
1. Example of Double Punching Method This construction method is a method of filling mortar into two portions in two portions. In the following, as an example of the present invention, a method of filling mortar in two steps will be described, but a method of filling in mortar in two or more times according to the size of the opening is also included. It is a waste. Moreover, in this construction method, a non-shrink mortar is used on the assumption that the requirement for ensuring the filling property is strict, but it is also possible to use a normal mortar depending on the requirements for ensuring the filling property. Furthermore, a normal mortar is used for filling at the time of pumping, and a non-shrinkable mortar can be used as a mortar in which the mortar has solidified and is filled in the space above the opening.

図1は配管貫通開口部(壁部)の斜視図である。以下では、本発明の実施例として、建屋を構成している壁、即ち建屋の躯体11に貫通して設けられた貫通穴である配管貫通角開口部の壁部を用いて説明するが、必ずしも配管貫通部のみではなく、機器・ダクト等の貫通開口部や工事用の仮開口部等も含むものである。また、角開口部のみではなく、丸穴部も含むものである。更に、壁部のみではなく、床(天井)部等も含むものである。配管貫通部内には、流体を流す配管,電線を通す配管,ケーブルを通すダクト及び空気を流すダクトなどの中空構造物が通される。   FIG. 1 is a perspective view of a pipe penetration opening (wall). In the following, as an embodiment of the present invention, a description will be given using a wall constituting a building, that is, a wall portion of a pipe penetration angle opening which is a through hole provided penetrating through the housing 11 of the building. It includes not only pipe penetrations, but also through openings such as equipment and ducts, temporary openings for construction, and the like. Moreover, not only a square opening part but a round hole part is also included. Furthermore, not only a wall part but a floor (ceiling) part etc. are included. A hollow structure such as a pipe through which a fluid flows, a pipe through which an electric wire passes, a duct through which a cable passes, and a duct through which air flows is passed through the pipe penetrating portion.

原子力発電プラント及び再処理プラントの建屋の躯体11には両端に四角形の開口を備えた貫通穴として角開口12が設定されており、角開口12の周囲には、コーナーアングル13と呼ばれるL型の鋼材が設置されている。コーナーアングル13は、躯体11を建設する時点で予め設置しておいたものであり、角開口12の両面に設置されている。角開口12の内部には、配管14が設置されている。角開口12の両面には、モルタル充填前に型枠15を取付ける。型枠15は、アクリル板または強化ガラスにて製作し、モルタル充填時に、角開口12の内部のモルタル充填状況が外部から確認可能な構造とする。尚、本工法においては、角開口12の上部はモルタルを後から充填する為、上部のモルタル充填状況が確認できることから、型枠15は木製または鉄製としても適用可能である。   A square opening 12 is set as a through hole with square openings at both ends in the building 11 of the building of the nuclear power plant and the reprocessing plant, and an L-shape called a corner angle 13 is formed around the corner opening 12. Steel is installed. The corner angles 13 are set in advance when the casing 11 is constructed, and are set on both sides of the corner opening 12. A pipe 14 is installed inside the corner opening 12. Forms 15 are attached to both sides of the corner opening 12 before mortar filling. The mold 15 is made of an acrylic plate or tempered glass, and has a structure in which the mortar filling state inside the corner opening 12 can be confirmed from the outside during mortar filling. In this construction method, since the upper part of the corner opening 12 is filled with mortar later, the mortar filling state of the upper part can be confirmed. Therefore, the mold 15 can be applied as wooden or iron.

型枠15には、大きさに応じて、モルタルを充填した際に型枠が撓んだり、変形しないように必要に応じて補強を設ける。また、型枠15は、取付け易いように分割し、分割後の型枠を組み合わせて開口に設置させる場合もある。角開口12の位置に対して、配管
14が設定されている位置を測定し、型枠15に配管貫通用の丸孔16を設ける。丸孔
16は、配管14の外径よりも数ミリ程度大きめに開け、モルタル充填時は、モルタルが角開口12から外部に流出することのないように配管14と丸孔16との隙間をウエスやテープ等で閉止する。
Depending on the size, the mold 15 is provided with reinforcement as necessary so that the mold does not bend or deform when filled with mortar. Further, the mold 15 may be divided so that it can be easily attached, and the divided molds may be combined and installed in the opening. The position where the pipe 14 is set with respect to the position of the corner opening 12 is measured, and a round hole 16 for pipe penetration is provided in the mold 15. The round hole 16 is opened a few millimeters larger than the outer diameter of the pipe 14, and when filling the mortar, the gap between the pipe 14 and the round hole 16 is a waste cloth so that the mortar does not flow out of the square opening 12. Close with tape or tape.

型枠15は、角開口12の高さを全て覆うのではなく、角開口12の上面から下側に
50mm〜200mm程度低い位置までを覆うものとし、型枠15の上面と角開口12の上面の間には空間部17が存在する。この空間部17は、角開口12にモルタルを充填した際、角開口12内に残留している空気を角開口12の外部に排出する空気抜きの機能を果たす(空間部17の1つ目の機能)。尚、空間部17の大きは角開口12の大きさに応じて変更可能なものとする。また、角開口12の大きさによっては、ホースや配管・開口等を設け、空気抜き箇所を適切な場所に設定することにより、型枠15が角開口12の全面を覆う方式も可能となる。
The mold 15 does not cover the entire height of the corner opening 12, but covers the lower position from the upper surface of the corner opening 12 to a position lower by about 50 mm to 200 mm, and the upper surface of the mold 15 and the upper surface of the corner opening 12 are covered. A space 17 exists between the two. This space portion 17 functions as an air vent for discharging the air remaining in the corner opening 12 to the outside of the corner opening 12 when the corner opening 12 is filled with mortar (the first function of the space portion 17). ). It is assumed that the size of the space portion 17 can be changed according to the size of the corner opening 12. In addition, depending on the size of the corner opening 12, a method in which the mold 15 covers the entire surface of the corner opening 12 by providing a hose, piping, opening, and the like and setting the air venting location to an appropriate place is also possible.

図2はコーナーアングルと型枠の取合い部の詳細を示す正面図で、型枠15の左・右・下部の3方向に、鋼材21を取付け、鋼材21をコーナーアングル13と溶接18して型枠15を固定する。   FIG. 2 is a front view showing details of a corner angle and a joint part of a formwork. A steel material 21 is attached in three directions of left, right, and lower part of the formwork 15 and the steel material 21 is welded to the corner angle 13 and welded 18. The frame 15 is fixed.

図3は配管貫通角開口部(壁)の側面図であり、図4は図3のコーナーアングルと型枠の取合い部を拡大した側面図で、型枠15には板厚の部分にネジ切り穴41を設け、同様に鋼材21にもネジ切り穴42を設けて、両者をネジ切りボルト32で固定する。尚、型枠15の固定においては、鉄筋コンクリート工事において、型枠の間隔を正確に保つものとして使用されるセパレーターを用いて型枠を引っ張り、壁をはさんで固定する方法や、型枠15を丸孔16の中心をとおる水平線を境に上下に分割し、上下に分割した型枠を丸孔16に配管14が収まるように上下から合わせてボルトで固定することで一枚の型枠
15とする方法等も適用可能である。
Fig. 3 is a side view of a through-hole opening (wall) of a pipe, and Fig. 4 is an enlarged side view of the corner angle and the formwork connection part of Fig.3. A hole 41 is provided, and similarly a threaded hole 42 is provided in the steel material 21, and both are fixed by a threaded bolt 32. In fixing the formwork 15, in the reinforced concrete construction, a method of pulling the formwork using a separator that is used to accurately maintain the distance between the formwork and fixing the formwork 15 between the walls, By dividing the upper and lower molds into a vertical line with a horizontal line passing through the center of the round hole 16 and aligning the pipes 14 in the round holes 16 from above and below and fixing them with bolts, The method of doing etc. is applicable.

図3は配管貫通角開口部(壁)の側面図で、自吸・圧送可能なポンプ35の吸込み側ノズル36と、モルタル充填用のホッパー38をホース37を介して接続する。この際、ポンプ35は自吸式であるが、ホッパー38はポンプ35よりも高い位置に設置し、自重で無収縮モルタルがポンプ35に流入するような配置がより望ましい。またホース37は極力短く直線的な引き回しとすることがより望ましい。   FIG. 3 is a side view of a pipe penetration angle opening (wall), in which a suction side nozzle 36 of a pump 35 capable of self-priming and pressure feeding and a hopper 38 for mortar filling are connected via a hose 37. At this time, the pump 35 is self-priming, but the hopper 38 is preferably installed at a higher position than the pump 35, and it is more preferable that the non-shrink mortar flows into the pump 35 by its own weight. It is more desirable that the hose 37 be as short and linear as possible.

ポンプ35の吐出側ノズル34とホース33を接続し、先に設定した型枠15よりも上位から角開口12にホース33を挿入する。モルタルをホッパー38から注入し、ポンプ35のスイッチを入れてポンプ35を起動すると、無収縮モルタルがホース37及びホース33を介して、角開口12に圧送・充填される。角開口12からモルタルが流出するモルタルオーバーフローレベル39よりも低位置のモルタル充填レベル19までモルタルを充填し、ポンプ35のスイッチを停止し、ホース33を引き抜く。尚、ホース33は引き抜かず、壁面で切断し、壁部を補修する方法も可能である。   The discharge-side nozzle 34 of the pump 35 and the hose 33 are connected, and the hose 33 is inserted into the square opening 12 from the upper side of the previously set mold 15. When mortar is injected from the hopper 38 and the pump 35 is switched on and the pump 35 is started, the non-shrink mortar is pumped and filled into the square opening 12 via the hose 37 and the hose 33. The mortar is filled up to the mortar filling level 19 which is lower than the mortar overflow level 39 from which the mortar flows out from the corner opening 12, the switch of the pump 35 is stopped, and the hose 33 is pulled out. In addition, the method of repairing a wall part by cutting | disconnecting by the wall surface without pulling out the hose 33 is also possible.

ポンプ35は、自吸・圧送可能なもので、粘性のある流動体を圧送できるホンプであれば、市販のポンプを適用可能である。尚、ポンプ35は、角開口12の大きさ(充填量)・位置及び、現場の作業性等を考慮し、使用する機種を選定する。現場でのハンドリンクを考慮すると、極力軽量で持ち運びし易いものがより望ましい。また、ホース33及びホース37はポンプ35による吸引で潰れないものを使用する。ホース33及びホース37は、施工状況に応じて配管も適用可能である。   The pump 35 is capable of self-priming and pumping, and a commercially available pump can be applied as long as it is a pump capable of pumping a viscous fluid. The pump 35 is selected in consideration of the size (filling amount) / position of the square opening 12 and the workability on site. Considering on-site hand links, it is more desirable to be as light as possible and easy to carry. Further, the hose 33 and the hose 37 that are not crushed by the suction by the pump 35 are used. As for the hose 33 and the hose 37, piping is also applicable according to the construction situation.

モルタル充填レベル19までモルタルを充填して数日間放置し、無収縮モルタルが硬化した後、溶接18部を取外して型枠15を撤去し、硬練りした無収縮モルタルを球状に成形して、治具等を用いて角開口12の上部の空間部17に充填する。この際、空間部17は、無収縮モルタルの充填口となる(空間部17の2つ目の機能)。   Fill the mortar to a mortar filling level of 19 and leave it for several days. After the non-shrink mortar has hardened, remove the weld 18 and remove the mold 15 and mold the kneaded non-shrink mortar into a spherical shape. The space 17 above the corner opening 12 is filled with a tool or the like. At this time, the space portion 17 serves as a filling port for the non-shrink mortar (second function of the space portion 17).

尚、型枠15を工事用の仮設とせず、本設品として撤去しない工法も可能である。この場合、人の立入り不可となる放射線量の高い区域に設定した型枠15に対しては、万一、アクリル板または強化ガラスが破損した場合に、飛散した破片による不具合が発生しないよう、モルタル充填・固化後に、アクリル板または強化ガラスの外側にステンレス鋼の板を取付け、飛散防止対策を施す。人の立入り可能な区域に設定した型枠15に対しては、必要に応じてステンレス鋼または炭素鋼の板をアクリル板または強化ガラスの外側に取付ける。   Note that a construction method in which the formwork 15 is not temporarily installed for construction and is not removed as a main product is also possible. In this case, for the mold 15 set in a high radiation dose area where humans cannot enter, in the unlikely event that the acrylic plate or tempered glass is damaged, the mortar will not cause problems due to scattered fragments. After filling and solidifying, attach a stainless steel plate to the outside of the acrylic plate or tempered glass and take measures to prevent scattering. A stainless steel or carbon steel plate is attached to the outside of the acrylic plate or tempered glass as necessary for the formwork 15 set in a human accessible area.

本実施例によれば、以下の効果がある。
(1)自吸・圧送可能なポンプ35を使用することで、穴埋め作業効率が向上する。また、狭隘部でもモルタル充填作業が可能となる。
(2)角開口12の上部に空間部17を設けることにより、空気抜き機能が付加され、空隙部発生による未充填箇所の防止が可能となり、充填性が向上する。
(3)無収縮モルタルを二回に分けて充填することにより、特に角開口12の上部に発生し易い空隙部の防止が促進され、充填性が向上する。
(4)型枠15にアクリル板または強化ガラスを用いることにより、角開口12の内部のモルタル充填状況を外部から確認することが可能となり、信頼性確保につながる。
(5)粘性のある流動体を自吸・圧送可能なポンプ35を使用することにより、ポンプ35の脈動等によってモルタルが解離することなく角開口12の空間部を充填可能となり、硬化後のモルタルの比重2.159/cm3以上の確保も可能となる。
(6)角開口12の底部からモルタル充填レベル19の位置まで先込めのモルタルを充填した際には、配管14がモルタルによって埋設される状態となり、先込めのモルタルが固化する前に配管の周りに緻密に充填される。先込めのモルタルが固化した後に後込めのモルタルをモルタル充填レベル19から上方に充填しても、既に配管14の周りには緻密にモルタルが充填されて固化している状態なので、配管の周囲に緻密にモルタルを充填する配慮が必要なく迅速且つ空隙の無い遮蔽信頼性の高い穴埋め作業ができる。
2.次に上記の二度打ち工法とは別に発明者が発案した空気抜きホース工法を参考例として以下に示す。
本施工方法は、型枠に空気抜き箇所を設置して空気を抜き、充填性を高める工法である。以下では、本発明の実施例として、型枠の片面には丸穴をあけてホースを設置し、型枠のもう片面にはテーパ付開口を設置する工法で説明するが、両面にホースを設置する工法や両面にテーパ付開口を設置する工法も含むものである。また、ホースの替わりに配管を使用する工法も含むものである。尚、本施工法で使用するモルタルは、充填性の要求条件に応じて、普通モルタルまたは無収縮モルタルを選択して使用する。
According to the present embodiment, there are the following effects.
(1) By using the self-priming / pumpable pump 35, the hole filling work efficiency is improved. In addition, mortar filling work can be performed even in narrow spaces.
(2) By providing the space portion 17 in the upper part of the corner opening 12, an air venting function is added, and it becomes possible to prevent an unfilled portion due to the generation of a gap portion, and the filling property is improved.
(3) By filling the non-shrinkable mortar in two steps, the prevention of voids that are likely to occur particularly in the upper part of the corner openings 12 is promoted, and the filling property is improved.
(4) By using an acrylic plate or tempered glass for the mold 15, it becomes possible to confirm the mortar filling state inside the corner opening 12 from the outside, which leads to ensuring reliability.
(5) By using the pump 35 capable of self-priming and pumping a viscous fluid, the space of the angular opening 12 can be filled without the mortar being dissociated by the pulsation of the pump 35, and the mortar after curing The specific gravity of 2.159 / cm 3 or more can be secured.
(6) When the pre-filled mortar is filled from the bottom of the square opening 12 to the position of the mortar filling level 19, the pipe 14 is buried by the mortar, and the pipe wrap around the pipe before the pre-filled mortar solidifies. Is closely packed. Even after the pre-filled mortar has solidified, the post-fill mortar is filled from the mortar filling level 19 upward, and since the mortar has already been densely filled around the pipe 14, it is solidified. There is no need for precise filling of mortar, and a hole filling operation can be performed quickly and without gaps with high shielding reliability.
2. Next, an air venting hose method proposed by the inventor in addition to the above-described double driving method will be described below as a reference example.
This construction method is a method for improving the filling property by installing an air vent part on the mold to vent the air. In the following, as an embodiment of the present invention, a method of installing a hose with a round hole on one side of the mold and installing a tapered opening on the other side of the mold will be described. And a method of installing tapered openings on both sides. Moreover, the construction method which uses piping instead of a hose is also included. In addition, the mortar used by this construction method selects and uses a normal mortar or a non-shrink mortar according to the requirements of a filling property.

図5は配管貫通開口部(壁部)の斜視図である。以下では、参考例として、配管貫通角開口部の壁部を用いて説明するが、必ずしも配管貫通部のみではなく、機器・ダクト等の貫通開口部や工事用の仮開口部等も含むものである。また、角開口部のみではなく、丸穴部も含むものである。更に、壁部のみではなく、床(天井)部等も含むものである。 FIG. 5 is a perspective view of the pipe through opening (wall). Hereinafter, as a reference example , a description will be given using a wall portion of a pipe penetration angle opening, but it does not necessarily include not only a pipe penetration portion, but also a through opening portion of equipment, a duct, a temporary opening portion for construction, and the like. Moreover, not only a square opening part but a round hole part is also included. Furthermore, not only a wall part but a floor (ceiling) part etc. are included.

躯体11には角開口12が設定されており、角開口12の周囲には、コーナーアングル13と呼ばれるL型の鋼材が設置されている。コーナーアングル13は、躯体11を建設する時点で予め設置しておいたものであり、角開口12の両面に設置されている。角開口12の内部には、配管14が設置されている。角開口12の両面を塞ぐように、角開口
12の両面には、型枠51及び型枠53を取付ける。型枠51及び型枠53は、アクリル板または強化ガラスにて製作し、モルタル充填時に、角開口12の内部のモルタル充填状況が外部から確認可能な構造とする。
An angular opening 12 is set in the housing 11, and an L-shaped steel material called a corner angle 13 is installed around the angular opening 12. The corner angles 13 are set in advance when the casing 11 is constructed, and are set on both sides of the corner opening 12. A pipe 14 is installed inside the corner opening 12. A mold 51 and a mold 53 are attached to both sides of the corner opening 12 so as to block both sides of the corner opening 12. The mold 51 and the mold 53 are made of an acrylic plate or tempered glass, and have a structure in which the mortar filling state inside the corner opening 12 can be confirmed from the outside during mortar filling.

角開口12の位置に対して、配管14が設定されている位置を測定し、型枠51及び型枠53に配管貫通用の丸孔56を設ける。丸孔56は、配管14の外径よりも数ミリ程度大きめに開け、モルタル充填時は、モルタルが角開口12から外部に流出することのないように、配管14と丸孔56との隙間をウエスやテープ等で閉止する。型枠51は、角開口12の全面を覆うものとし、上部に丸穴を設け、角開口12の内部から外部へ空気抜き用のホース52を設置する。型枠53は角開口12の上面から下側に50mm〜200mm程度低い位置までを覆うものとし、型枠53の天側は、テーパ部54に接続する。テーパ部54は、角開口12の上面から100mm程度上方まで伸びており、モルタル充填口兼空気抜き兼オーバフローモルタル受け箇所の3つの機能を兼ねている。尚、これらの数値設定は、開口の大きさに応じて変更可能なものとする。   The position where the pipe 14 is set with respect to the position of the corner opening 12 is measured, and a round hole 56 for penetrating the pipe is provided in the mold 51 and the mold 53. The round hole 56 is opened a few millimeters larger than the outer diameter of the pipe 14. When filling the mortar, a gap between the pipe 14 and the round hole 56 is provided so that the mortar does not flow out of the square opening 12. Close with waste cloth or tape. The formwork 51 covers the entire surface of the corner opening 12, is provided with a round hole in the upper part, and a hose 52 for venting air is installed from the inside of the corner opening 12 to the outside. The mold 53 covers the lower side from the upper surface of the square opening 12 to a position lower by about 50 mm to 200 mm, and the top side of the mold 53 is connected to the tapered portion 54. The taper portion 54 extends about 100 mm from the upper surface of the square opening 12 and also serves as three functions of a mortar filling port / air venting / overflow mortar receiving portion. These numerical values can be changed according to the size of the opening.

図6はコーナーアングル13と型枠51の取合い部の詳細を示す正面図で、型枠51の周囲及び型枠53の左・右・下部の3方向に、鋼材61を取付け、鋼材61をコーナーアングル13と溶接55して型枠51を固定する。また、型枠53についても同様に固定する。   FIG. 6 is a front view showing details of the joint portion between the corner angle 13 and the formwork 51. The steel material 61 is attached to the periphery of the formwork 51 and the left, right, and lower sides of the formwork 53, and the steel material 61 is attached to the corner. The mold 51 is fixed by welding 55 to the angle 13. Also, the mold 53 is fixed in the same manner.

図7は配管貫通角開口部(壁)の側面図であり、図8は図7のコーナーアングル13と型枠51,53の取合い部を拡大した側面図で、型枠51及び型枠53には板厚の部分にネジ切り穴81を設け、同様に鋼材61にもネジ切り穴82を設けて、両者をネジ切りボルト32で固定する。尚、型枠51及び型枠53の固定においては、鉄筋コンクリート工事において、型枠の間隔を正確に保つものとして使用されるセパレーターを用いて型枠を引っ張り、壁をはさんで固定する方法や、型枠51,53を丸孔56の中心をとおる水平線を境に上下に分割し、上下に分割した型枠を丸孔56に配管14が収まるように上下から合わせてボルトで固定することで一枚の型枠51,53とする方法等も適用可能である。   FIG. 7 is a side view of the opening portion (wall) of the pipe penetration angle, and FIG. 8 is an enlarged side view of the joint portion between the corner angle 13 and the mold frames 51 and 53 of FIG. Is provided with a threaded hole 81 in the plate thickness portion, and similarly provided with a threaded hole 82 in the steel material 61, and both are fixed by the threaded bolt 32. In addition, in the fixing of the mold 51 and the mold 53, in the reinforced concrete work, a method of pulling the mold using a separator that is used to accurately maintain the interval between the molds, and fixing it with the wall between, The molds 51 and 53 are divided into upper and lower parts with a horizontal line passing through the center of the round hole 56 as a boundary, and the upper and lower parts of the molds are aligned from above and below so that the pipe 14 can be accommodated in the round hole 56 and fixed with bolts. A method of using the sheet molds 51 and 53 is also applicable.

図7は配管貫通角開口部(壁)の側面図で、自吸・圧送可能なポンプ35の吸込み側ノズル36と、モルタル充填用のホッパー38をホース37を介して接続する。この際、ポンプ35は自吸式であるが、ホッパー38はポンプ35よりも高い位置に設置し、自重でモルタルがポンプ35に流入するような配置がより望ましい。またホース37は極力短く直線的な引き回しとすることがより望ましい。   FIG. 7 is a side view of a pipe penetration angle opening (wall), in which a suction side nozzle 36 of a pump 35 capable of self-priming and pressure feeding and a hopper 38 for mortar filling are connected via a hose 37. At this time, the pump 35 is self-priming, but the hopper 38 is preferably installed at a higher position than the pump 35, and it is more preferable that the mortar flows into the pump 35 by its own weight. It is more desirable that the hose 37 be as short and linear as possible.

ポンプ35の吐出側ノズル34とホース33を接続し、先に設定した型枠のテーパ部
54よりも上位から角開口12にホースを挿入する。型枠のテーパ部54は型枠53の上端に図7のように角開口12内に向けて下り勾配の斜めにしてアクリル板を設けてモルタルの貯留個所として構成される。モルタルをホッパー38から注入し、ポンプ35のスイッチを入れてポンプ35を起動すると、モルタルがホース37及びホース33を介して、角開口12に圧送・充填される。ホース52から容器84内へモルタルがオーバーフローしても、継続してモルタルを充填し、テーパ部54の上面のモルタル充填レベル19までモルタルが充填されたところでポンプ35のスイッチを切ってポンプ35を停止し、ホース33及びホース52を引き抜く。尚、ホース33及びホース52は引き抜かず、壁面で切断し、壁部を補修する方法も可能である。
The discharge side nozzle 34 of the pump 35 and the hose 33 are connected, and the hose is inserted into the square opening 12 from above the taper portion 54 of the previously set formwork. The taper portion 54 of the mold is configured as a mortar storage location by providing an acrylic plate at an upper end of the mold 53 with an inclined downward slope toward the inside of the square opening 12 as shown in FIG. When mortar is injected from the hopper 38 and the pump 35 is switched on and the pump 35 is started, the mortar is pumped and filled into the square opening 12 via the hose 37 and the hose 33. Even if the mortar overflows from the hose 52 into the container 84, the mortar is continuously filled. When the mortar is filled up to the mortar filling level 19 on the upper surface of the taper portion 54, the pump 35 is turned off and the pump 35 is stopped. Then, the hose 33 and the hose 52 are pulled out. In addition, the method of repairing a wall part by cutting | disconnecting by the wall surface without pulling out the hose 33 and the hose 52 is also possible.

ポンプ35は、自吸・圧送可能なもので、粘性のある流動体を圧送できるポンプであれば、市販のポンプを適用可能である。尚、ポンプ35は、角開口12の大きさ(充填量)・位置及び、現場の作業性等を考慮し、使用する機種を選定する。現場でのハンドリングを考慮すると、極力軽量で持ち運びし易いものがより望ましい。また、ホース33及びホース37はポンプ35による吸引で潰れないものを使用する。ホース33及びホース37は、施工状況に応じて配管に替えて適用可能である。   The pump 35 can be self-priming and pumping, and a commercially available pump can be used as long as it can pump a viscous fluid. The pump 35 is selected in consideration of the size (filling amount) / position of the square opening 12 and the workability on site. Considering handling on site, it is more desirable to be as light as possible and easy to carry. Further, the hose 33 and the hose 37 that are not crushed by the suction by the pump 35 are used. The hose 33 and the hose 37 can be applied in place of piping according to the construction situation.

テーパ部54の上面にまでモルタルを充填してから数日間放置し、モルタルが硬化した後、溶接55部を取外して型枠51や型枠53及びテーパ部54を撤去し、テーパ部54に充填されたモルタル部分をはつり、壁面を仕上げる。   Fill the top surface of the taper part 54 with mortar and leave it for several days. After the mortar has hardened, remove the weld 55 part and remove the mold frame 51, the mold frame 53 and the taper part 54 to fill the taper part 54. The finished mortar part is finished and the wall surface is finished.

尚、型枠51及び型枠53を工事用の仮設とせず、本設品として撤去しない工法も可能である。この際、テーパ部54のみは撤去しテーパ部に充填されたモルタル部分をはつり、壁面を仕上げる。また、必要に応じて型枠51及び型枠53のアクリル板または強化ガラスの外側にステンレス鋼または炭素鋼の板を取付ける。   It is also possible to adopt a construction method in which the mold 51 and the mold 53 are not temporarily installed for construction and are not removed as the main product. At this time, only the taper portion 54 is removed and the mortar portion filled in the taper portion is suspended to finish the wall surface. Further, if necessary, a stainless steel or carbon steel plate is attached to the outside of the acrylic plate or tempered glass of the mold 51 and the mold 53.

本実施例によれば、以下の効果がある。
(1)自吸・圧送可能なポンプ35を使用することで、穴埋め作業効率が向上する。また、狭隘部でもモルタル充填作業が可能となる。
(2)角開口12の上部にホース52を設けることにより、空気抜き機能が付加され、空隙部発生による未充填箇所の発生防止が可能となり、充填性が向上する。
(3)角開口12の上部にテーパ部54を設けることにより、充填されたモルタルが角開口12の内部へ流れ込む。また、空気抜き機能も果たすことから、空隙部発生による未充填箇所の発生防止が可能となり、充填性が向上する。
(4)型枠51及び型枠53にアクリル板または強化ガラス板を用いることにより、角開口12の内部のモルタル充填状況を外部から確認することが可能となり信頼性確保につながる。
(5)粘性のある流動体を自吸・圧送可能なポンプ35を使用することにより、ポンプ
35の脈動等によってモルタルが解離することなく角開口12の空間部を充填可能となり、硬化後のモルタルの比重2.15g/cm3以上の確保も可能となる。
(6)モルタルがホース52を通じて残留する空気を同伴してオーバフローして容器84に入るから、空気の角開口12内での残留が低減され、且つテーパ部54に貯留したモルタルが角開口12内の空隙に置き換わって緻密に角開口12内のモルタル充填が達成される。
According to the present embodiment, there are the following effects.
(1) By using the self-priming / pumpable pump 35, the hole filling work efficiency is improved. In addition, mortar filling work can be performed even in narrow spaces.
(2) By providing the hose 52 at the upper part of the square opening 12, an air venting function is added, it becomes possible to prevent the occurrence of unfilled portions due to the generation of voids, and the filling property is improved.
(3) By providing the tapered portion 54 at the upper portion of the angular opening 12, the filled mortar flows into the angular opening 12. Moreover, since the air venting function is also achieved, it is possible to prevent the occurrence of unfilled portions due to the generation of voids, and the filling property is improved.
(4) By using an acrylic plate or a tempered glass plate for the mold 51 and the mold 53, it is possible to confirm the state of mortar filling inside the corner opening 12 from the outside, thereby ensuring reliability.
(5) By using the pump 35 capable of self-priming and pumping a viscous fluid, the space of the angular opening 12 can be filled without the mortar being dissociated by the pulsation of the pump 35, and the mortar after curing The specific gravity of 2.15 g / cm 3 or more can be secured.
(6) Since the mortar overflows with the air remaining through the hose 52 and enters the container 84, the residual air in the corner opening 12 is reduced, and the mortar stored in the tapered portion 54 is in the corner opening 12. Thus, the mortar filling in the angular opening 12 is achieved densely.

本発明の実施例及び参考例によれば、配管・機器等貫通開口部のモルタル充填穴埋め箇所に自吸・圧送可能なポンプを適用することにより、穴埋め作業の効率を向上させる効果がある。また、二度打ち工法や空気抜きホース工法等により、空気抜きが確実に可能となり、モルタルの充填性を向上させる効果が見込まれる。更に、アクリル板または強化ガラスを型枠として使用することにより、モルタル充填時の充填状況が確認可能となり、信頼性向上の効果がある。 According to the embodiment and the reference example of the present invention, there is an effect of improving the efficiency of the hole filling work by applying the self-priming and pressure-feeding pump to the mortar filling hole filling portion of the through opening such as the piping / equipment. In addition, the double punching method, the air vent hose method, etc. can surely vent the air, and the effect of improving the filling property of the mortar is expected. Furthermore, by using an acrylic plate or tempered glass as a mold, it is possible to check the filling state at the time of mortar filling, and there is an effect of improving reliability.

本発明の実施例及び参考例における配管14は、流体を通す配管や電線を通す配管やケーブルや空気を通すダクトなどの中空構造物に置き換えて、或いはそれらの複数種類を混在させて考えることもできる。 The pipe 14 in the embodiment and the reference example of the present invention may be replaced with a hollow structure such as a pipe through which a fluid passes, a pipe through which an electric wire passes, a cable or a duct through which air passes, or a plurality of types may be mixed. it can.

本発明による配管貫通角開口部(壁)の斜視図(二度打ち工法)である。It is a perspective view (twice driving method) of the piping penetration angle opening part (wall) by this invention. 図1のコーナーアングルと型枠の取合い部の詳細を示す正面図である。It is a front view which shows the detail of the corner angle of FIG. 1, and the connection part of a formwork. 図1の配管貫通角開口部(壁)の側断面図である。It is a sectional side view of the piping penetration angle opening part (wall) of FIG. 図3のコーナーアングルと型枠の取合い部Aを拡大した図である。FIG. 4 is an enlarged view of a corner angle of FIG. 3 and a joint part A of a formwork. 参考例による配管貫通角開口部(壁)の斜視図(空気抜きホース工法)である。 It is a perspective view (air bleeding hose construction method) of the piping penetration angle opening part (wall) by a reference example . 図5のコーナーアングルと型枠の取合い部の詳細を示す正面図である。It is a front view which shows the detail of the corner angle of FIG. 5, and the connection part of a formwork. 図5の配管貫通角開口部(壁)の側断面図である。It is a sectional side view of the pipe penetration angle opening (wall) of FIG. 図7のコーナーアングルと型枠の取合い部Aを拡大した図である。It is the figure which expanded the corner angle of FIG. 7, and the connection part A of a formwork.

符号の説明Explanation of symbols

11…躯体、12…角開口、13…コーナーアングル(鋼材)、14…配管、15,
51,53…型枠(アクリル板または強化ガラス)、16,56…丸孔、17…空間部
(空気抜き・二度打ち時の充填口兼用)、18…溶接、19…モルタル充填レベル、21…鋼材、32…ネジ切りボルト、33,37…ホース、34…ポンプノズル(吐出側)、35…ポンプ、36…ポンプノズル(吸込み側)、38…ホッパー、39,83…モルタルオーバーフローレベル、41,81…ネジ切り穴(型枠側)、42,82…ネジ切り穴
(鋼材側)、52…空気抜きホースまたは配管、54…テーパ部(モルタル充填口兼空気抜き兼オーバフローモルタル受け)、55…溶接、61…鋼材、71…モルタル充填レベル、84…容器(オーバフローモルタル回収用)。

DESCRIPTION OF SYMBOLS 11 ... Housing, 12 ... Square opening, 13 ... Corner angle (steel material), 14 ... Piping, 15,
51, 53 ... Formwork (acrylic plate or tempered glass), 16, 56 ... Round hole, 17 ... Space (also used as a filling port for air venting and double striking), 18 ... Welding, 19 ... Mortar filling level, 21 ... Steel, 32 ... Threaded bolt, 33, 37 ... Hose, 34 ... Pump nozzle (discharge side), 35 ... Pump, 36 ... Pump nozzle (suction side), 38 ... Hopper, 39, 83 ... Mortar overflow level, 41, 81 ... Threaded hole (formwork side), 42,82 ... Threaded hole (steel side), 52 ... Air venting hose or piping, 54 ... Tapered part (mortar filling port / air venting / overflow mortar receiver), 55 ... welding, 61: Steel, 71: Mortar filling level, 84: Container (for overflow mortar recovery).

Claims (4)

建屋の構成部材に横方向に貫通して設けられた貫通穴に中空構造物を通し、前記中空構造物が貫通する型枠を前記貫通穴の両端部に取り付け、その後、前記貫通穴内の前記中空構造物よりも上であって前記貫通穴内の最上面の間に空間が残存するように前記貫通穴内にモルタルを充填し、充填したモルタルが硬化した後、前記貫通穴内に残存した空間部に再度モルタルを充填する建屋の貫通穴の穴埋め方法。   A hollow structure is passed through a through-hole provided in the building member in a lateral direction, and a mold through which the hollow structure penetrates is attached to both ends of the through-hole. Thereafter, the hollow in the through-hole is installed. The mortar is filled in the through hole so that a space remains above the structure and between the uppermost surfaces in the through hole, and after the filled mortar is cured, the space portion remaining in the through hole is again filled How to fill through holes in buildings where mortar is filled. 請求項1において、前記型枠が透明な部材で構成され、前記モルタルの充填の状況を前記型枠越しに視認して確認できるようにした建屋の貫通穴の穴埋め方法。 2. The method of filling a through hole in a building according to claim 1, wherein the mold is made of a transparent member, and the state of filling of the mortar can be visually confirmed through the mold . 請求項1又は請求項2において、前記モルタルをポンプで貫通穴内に圧送して充填する建屋の貫通穴の穴埋め方法。 3. The method for filling a through hole in a building according to claim 1 or 2, wherein the mortar is pumped and filled into the through hole with a pump . 請求項1において、前記型枠を前記貫通穴の開口に対して前記型枠の上端が前記貫通穴の上面よりも低い位置になるように取り付け、前記型枠上端と前記貫通穴の最上面との間の間隙を通して、前記貫通穴内の前記中空構造物よりも上であって前記貫通穴の最上面の間に空間が残存するように前記貫通穴内にモルタルをポンプを利用して充填し、充填したモルタルが硬化した後、前記貫通穴内に残存した空間部に再度モルタルを前記間隙を通して手詰めで充填する建屋の貫通穴の穴埋め方法。 2. The mold according to claim 1 , wherein the mold is attached so that an upper end of the mold is lower than an upper surface of the through hole with respect to an opening of the through hole, and the upper end of the mold and the uppermost surface of the through hole The through hole is filled with mortar using a pump so that a space remains above the hollow structure in the through hole and between the uppermost surfaces of the through hole. After the cured mortar is hardened, a method of filling a through hole in a building, in which the space remaining in the through hole is again filled with mortar by hand through the gap .
JP2004052654A 2004-02-27 2004-02-27 Filling through holes in buildings Expired - Fee Related JP4310212B2 (en)

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