JP3949314B2

JP3949314B2 - Sound barriers for roads and their construction methods

Info

Publication number: JP3949314B2
Application number: JP09852599A
Authority: JP
Inventors: 靖夫橋井; 眞義野村
Original assignee: Nipponn Steel and Sumikin Metal Products Co Ltd
Current assignee: Nippon Steel Metal Products Co Ltd
Priority date: 1999-04-06
Filing date: 1999-04-06
Publication date: 2007-07-25
Anticipated expiration: 2019-04-06
Also published as: JP2000290939A

Description

【０００１】
【発明の属する技術分野】
本発明は、道路の中央分離帯あるいは道路、鉄道等の路側部に立設配備される防音壁に係り、既設、新設を問わず、所定間隔を置いて支柱を立てて防音壁を構築する技術に関する。
【０００２】
【従来技術】
従来、地盤のコンクリートベースに垂直固定した支柱に取り付ける防音壁及びその施工方法には、以下のようなものがあった。
ひとつは、落とし込み式と称せられるもので、図１１に示すように防音板６０の周縁に予め周枠材６１を一体に取付固定して枠付きの防音パネル６２を作製し、この防音パネルを施工現場で、Ｈ型鋼からなる隣接支柱６３間に上から落とし込んだ後、適宜の方法で防音パネルを固定する施工方法である。また、図１２に示すものは、Ｈ型鋼６３の両フランジの両側面、または角型鋼の支柱の両側面を挟みこむように防音壁の両側縁部６４を突出させ、この両側縁部の間に形成された凹部６５に支柱を嵌めこんで、支柱に対して防音壁を上から落としこんで取り付ける、支柱挟持型であって、実公昭５６−１７５３９号等で開示されている。
【０００３】
いま一つは、特開平６−３３４２５号、特開平１０−４６５３５号で開示されているものであって、前者は図１３に示すように、防音板６０の周縁に周枠材６１を取り付けて枠付きの防音パネルを予め作製しておく一方、現場に立てられた支柱６３に予め取付用ボルト６６を立設固定しており、上記防音パネルの取付孔を上記取付用ボルト６６に填め合わせてナット６７を締めるものであり、後者は図１４に示すように、防音パネル６２の側縁部６４に支柱６３の片面に当接する凸縁部６４と、支柱６３の他側面へあてがわれたダミーパネル６８の厚さ相当分同形状に凹ませた凹面部６９とが形成され、該ダミーパネル６８は支柱６３の他側面に複数のボルト７０、７０で取り付けられ、両パネル６２，６２は、凸縁部６４を支柱６３の片面に当接させ、凹面部６９にダミーパネル６８を当接させた状態で、ボルト止めとするものである。このように両公報に開示されているものは、工場加工によって防音壁にあけた孔に合わせて支柱にボルト孔をあけ、防音壁と支柱のボルト孔を合わせて、ボルトにより結合する方法である。
【０００４】
【発明が解決しようとする課題】
上記の上から落としこむ方法は、施工現場における孔あわせや、ボルト締めの手数がないので、作業効率も良く労力も軽減されるが、防音壁を落としこんだ後で、ボックスビーム等を支柱上部に取り付ける必要があり、この組立作業は現場施工であって、かなり煩雑である。また既存の中央分離帯等に防音壁を新たに取り付ける場合は、ボックスビームの取り外し、取り付け作業が必要であり、新設工事と同様に煩雑であって、かなりの労力と作業時間を必要とすると同時に、車両の通行を長期間ストップさせなければならないという欠点があった。また、支柱に孔をあけると、支柱の強度が低下するという問題もあった。また、工場加工による防音壁にあけた孔に合わせて、支柱にボルト孔をあける作業も現場施工であり、ボルトを挿しこんで締めつける作業も現場施工であるため、交通の頻繁な道路等における作業は、危険を伴うものであり、多くの制約があった。
【０００５】
また、孔合わせを迅速・簡単に行うためには、支柱にあける孔を長円形または大きくする必要があるが、そのような孔をあけると、支柱の強度を弱めるという問題があった。
【０００６】
本発明は以上のような従来技術の持つ問題点に鑑みてなされたものであって、その目的は、中央分離帯や路側部等に設けられた既設、新設の支柱に防音壁を設置する場合に、作業が簡単であって、支柱の孔あけ作業等の煩雑な作業を伴わない、簡単で、安全に取り付けられる防音壁及びその取り付け方法を提供することにある。
【０００７】
【課題を解決するための手段】
上述した目的を達成するために、本発明は次ぎに述べるような構成となっている。
＜請求項１記載の発明＞
本発明の道路等の防音壁は、地盤に所定の間隔を置いて立設された支柱の左右に防音壁パネルを並設・接合して、連続構築する防音壁であって、隣り合う一方の防音壁パネルの側端部において、パネル正面板を延長・突出させ、該正面板の背面を前記支柱の前側面に当接させる前方突出部と、他方の防音壁パネルの側端部において、パネル背面板を延長・突出させ、該背面板の背面を前記支柱の後側面に当接させる後方突出部を設け、前記前方突出部の先端部を他方の防音壁パネルの正面板に固着し、前記後方突出部の先端部を一方の防音壁パネルの背面板に固着して、両防音壁パネルを接合することを特徴とする。
【０００８】
＜請求項２記載の発明＞
本発明の前記防音壁パネルは、パネル正面板および／または背面板が多孔板であり、内部に吸音材を配置してなるものであって、一方の防音壁パネルの背面板に、前記後方突出部の先端部を填め込んで固着する後方凹部を設け、他方の防音壁パネルの正面板に、前記前方突出部の先端部を填め込んで固着する前方凹部を設けたことを特徴とする。
【０００９】
＜請求項３記載の発明＞
本発明はまた、前記両凹部に填め込み固着される前方及び後方突出部の先端部が、パネル内側方向にそれぞれ屈曲してカギ型形状をなすものであり、前記両凹部が、前記カギ型形状の両先端部を填め込む深さを有することを特徴とする。
【００１０】
＜請求項４記載の発明＞
本発明はまた、前記隣り合う両防音壁パネルの側端部において、両パネル正面板をそれぞれ延長・突出させて支柱前側面を取り合って当接させ、支柱後側面に当接させた板状の接合用パネルの両端部を、両防音壁パネル背面板にそれぞれ固着させて、両防音壁パネルを接合することを特徴とする。
【００１１】
＜請求項５記載の発明＞
前記板状接合用パネルの両端部を填め込んで固着する凹部を、前記両防音壁パネル背面板にそれぞれ設けたことを特徴とする。
【００１２】
＜請求項６記載の発明＞
前記支柱が丸鋼管からなるものであって、該支柱と略同径の半円形状の支柱当接部が、前記前方突出部及び前記後方突出部に設けられていることを特徴とする
。
【００１３】＜請求項７記載の発明＞
本発明は、前記支柱の前側面または後側面と、前記前方突出部または後方突出部または板状接合用パネルとが当接するそれぞれの部位に、クッション材を配してなることを特徴とする。
【００１４】
＜請求項８記載の発明＞
本発明は、前記防音パネルの上端部に、上下に移動可能な調節板が設けられていることを特徴とする。
＜請求項９記載の発明＞
本発明の施工方法は、地盤に所定の間隔を置いて立設された支柱の左右に防音壁パネルを並設し、隣り合う一方の防音壁パネルの側端部において、パネル正面板を延長・突出させてなる前方突出部における該正面板の背面を、前記支柱の前側面に当接させ、他方の防音壁パネルの側端部において、パネル背面板を延長・突出させてなる後方突出部における該背面板の背面を、前記支柱の後側面に当接させ、前記前方突出部の先端部を他方の防音壁パネルの正面板に固着し、前記後方突出部の先端部を一方の防音壁パネルの背面板に固着して両防音壁パネルを接合して連続構築することを特徴とする。
【００１５】
【発明の実施の形態】
本発明の実施の形態を図面を参照しながら説明する。
＜実施の形態１＞
図１は本発明の実施の形態１であって、道路の中央分離帯に設置された防護フェンス６およびボックスビーム４と、それらを支える下部支柱３と、下部支柱３に取り付けた立面図、、第２図は、第１図のＡ−Ａ断面図、第３図は防音壁パネル８を取り付ける前の防護フェンス６とボックスビーム４及び下部支柱３を示す立面図、第４図は防音壁パネルの正面図である。、
【００１６】
既設の中央分離帯に設置された防護フェンス６は、図３に示すように、地盤のコンクリートベース２に固定して２ｍメートルおき位のピッチで垂直に立てた支柱３‥‥‥の上端部にボックスビーム４を路面と略平行に支持させ、該ボックスビーム４の上面に３ｍおき位のピッチで垂直に立てた第２支柱５、５の間に、一例としてエキスパンダメタル等で構成された防護フェンス６を取り付けたものである。ボックスビーム４には通例、断面が２００×１５０ｍｍ、板厚が５ｍｍ位の角鋼管が使用されている。このボックスビーム４には、支柱３の上端部にボルト７で取り付けた平板状の支持部材８が填まり込むスリットが設けられ、該ボックスビーム４は上方から被せるようにして、スリットに支持部材８を填め込んで支持させている。
【００１７】
本発明の防音壁パネルは、図５に示すように、上下両端を折り曲げたパネル正面板１１とパネル背面板１２をそれぞれ多孔板とし、上下に平板３２、３２を配置し、内部に２枚の仕切板２３を挟んで２層の吸音板２４、２４を配置して、２枚のパネル板１２，１３と上下の平板３２、３２と仕切板２３を一体に締付けて、吸音機能を持つ防音壁パネル９として構成されている。
２５は、この防音パネル９のパネル正面板１１及び背面板１２の上端にボルトで接合された調節板であって、この調節板２５のボルト孔は上下方向に長孔となっている。
【００１８】
支柱３を中心とする隣り合う防音壁同士の接合を、図６、図７を参照して説明する。防音壁パネル９の側端部１３において、パネル正面板１１を延長・突出させて、前方突出部１４を設けている。前方突出部１４は、支柱３の前側面２６に当接する前方支柱当接面１５と、垂直方向に複数(図においては２個)のボルト孔を設けた前方先端部１６からなり、支柱３の支柱前側面２６に当接させるために、正面板１１より幅を厚く作られている。同様に、隣り合う他方の防音壁パネル１０も、防音壁パネル１０の側端部１３において、パネル背面板１２を延長・突出させて後方突出部１７を設け、前記支柱３の後側面２７に当接する後方突出部支柱当接面１８と、複数(図においては２個)のボルト孔を設けた後方先端部１９とからなっている。防音パネル１０の側端部１３には、前方突出部１４の反対側の背面板１２に、防音壁１０の後方先端部１９が填まり込む凹部２０が設けられている。凹部２０は、後方突出部１７の厚さ分だけ背面板１２を後退させ、この部分の吸音板を取り除いて、切り欠き状に形成ししている。また、防音パネル１０の側端部にも、前方先端部１６が填まり込む凹部２０が、該先端部１６の厚さと同一の深さに形成されている。したがって両パネルの正面板１１と背面板１２は、段差なく接合する。
【００１９】
次の支柱３を挟む左右の防音パネルも、突出部と凹部が同じ深さ・厚さに設けられているので、両パネルは段差なく接合する。こうして中央分離帯における全てのパネルは段差なく接合して、単一の防音壁が構築されている。
【００２０】
前記凹部２０には、前記前方先端部１６に設けた複数のボルト孔に対応する位置に、背面板１２に孔があけられて固着ナット２１が内側に固着されている。ボルト孔から固着ボルト２２を挿入してナット２１と螺合することによって、パネル９の正面板１１に設けられた前方先端部１６が、隣り合うパネル１０の正面板１１に設けられた凹部２０に固着する。同様にパネル１０の後方先端部１９が、パネル１０の背面板１２の凹部２０にボルト２２、ナット２１により固着する。なお、ボルト孔は、接合時にアジャストしやすいように長孔等で構成されている。
両先端部１６、１９と両凹部２０、２０を結合すると、両パネルの側端部１３，１３の中心に位置する支柱３の前側面２６と後側面２７に、前方支柱当接面１５と後方支柱当接面１８が当接するので、両パネル９，１０は、正面板１１と背面板１２との間に支柱を緊密に抱えこんで、固着結合される。
【００２１】
両パネルの支柱当接面１５，１８と支柱両側面２６，２７の間には、クッション材２８が挿入・接着され、より緊密な固着を図るとともに、接触面に損傷が生ずるのを防止している。クッション材２８には、ネオプレンゴムを使用している。
【００２２】
既設、新設を問わず、中央分離帯の下部支柱３間に防音壁１を構築する場合は、支柱間間隔に合わせて工場で製作した防音パネル９，１０を現場に運びこみ、パネル９を立てて、前方突出部支柱当接面１５を支柱前側面２６に当接させる。次に、同じくパネル１０を立てて、後方突出部支柱当接面１８を支柱後側面２７に当接させる。次に前方先端部１６に設けたボルト孔に固着ボルト２２を挿し込み、対応する凹部２０に固着している固着ナット２１に螺合させる。次に同じく後方先端部１９に設けたボルト孔に固着ボルト２２を挿し込み、対応する凹部２０に固着している固着ナット２１に螺合させる。こうして、前方突出部１４と後方突出部１７が、支柱前側面２６、後側面２７に当接し、ボルト２２を締付けていくと、クッション材２８を介してパネル９とパネル１０とが支柱３を固く囲みこむ形で、緊密に接合する。ボルト孔は長孔に製作されているので、ナットにボルトを螺合するという極めて簡単な超短時間の作業によって、支柱３を中心とし、支柱３に緊密に支えられた防音壁パネル９、１０が固く接合される。次いで防音壁パネル９及び１０の上端に取り付けられた調節板２５を上方に引き上げて、ボックスビーム４と防音壁パネル９、１０との間の隙間をなくしていく。同様の作業を繰り返して、連続した、段差のない防音壁が、簡単に短時間で構築される。このように、交通量の多く、高速で車両が往復する高速道路においても、簡単な超短時間の作業で防音壁が構築される。さらに、支柱に孔をあける必要がないので、支柱の強度を損なうこともない。
【００２３】
＜実施の形態２＞
本発明の実施の形態２は、接合する両パネル９、１０の両突出部と両凹部の形態が異なるのみで、他は全て実施の形態１と同じである。
図８の部分拡大図で示すように、防音壁パネル９の側端部１３において、パネル正面板１１を延長・突出させて、前方突出部１４を設けている。前方突出部１４は、支柱３の前側面２６に当接する前方突出部支柱当接面１５と複数(図においては２個)のボルト孔を有する前方先端部３０からなり、該当接面１５は支柱３の前側面２６に当接させるために、正面板１１より幅を厚く作られている。さらに前方先端部３０は、正面板１１と吸音材２４の厚さを合計した厚みに形成され、前方先端部３０の端面は、防音パネル９の中心部の、仕切板２３に固着する。同様に隣り合う他方の防音壁パネル１０も、側端部１３において、パネル背面板１２を延長・突出させて後方突出部１７を設け、前記支柱３の後側面２７に当接する後方突出部支柱当接面１８と、複数(図においては２個)のボルト孔を有する後方先端部３３とからなり、後方先端部３３はパネル中心部に達する厚さを有し、仕切板２３に固着する。、
この防音パネル９の、前方突出部１４を設けた反対側の背面板１２には、隣り合う防音壁１０の後方先端部３３が填まり込む深い凹部３１が、背面板１２と吸音材２４をカットして設けられている。凹部３１の深さは後方先端部３３の厚さと同一に形成されているので、両パネル９、１０は段差なく接合する。同様に全ての防音壁パネル間において、隣り合う防音パネルとの間で同様に厚い突出部と深い凹部が形成され、全てのパネル間は段差なく接合して、連続する防音壁が構築される。
【００２４】
前記凹部３１には、前記前方先端部１６のボルト孔に対応する位置に、仕切板２３に孔があけられて、固着ナット２１が仕切板２３内側に固着され、前記前方先端部３０のボルト孔から固着ボルト２２を挿入してナット２１と螺合することによって、正面板１１に設けられた突出する前方先端部３０が、隣り合うパネル１０の正面板１２に設けられた深い凹部３１に固着する。同様に隣り合うパネルの後方先端部３３が、背面板１２と吸音板２４をカットした深い凹部３１に固着する。なお、ボルト孔は、アジャストできるように長孔等で構成されている。
両パネル９、１０が、正面板１１と背面板１２との間に支柱３の両側面に加えて、側端部１３をも緊密に抱えこんで、固着結合するので、実施の形態１よりも支柱３との結合が密である。支柱当接面にクッション材２８を接着する点は同様である。
【００２５】
＜実施の形態３＞
図９は本発明の実施の形態３を示す部分拡大図である。隣り合う両防音壁パネル９、１０の両側端部１３において、両パネル背面板１２，１２をそれぞれ延長・突出させ、支柱後側面４０に当接させて、該支柱後側面中心部にわずかの隙間をおいて取り合っている。平板状の接合用パネル４１を支柱前側面４２に当接させて支柱３を挟んで囲みこんでいる。両防音壁パネル９、１０の正面板１１，１１に設けた凹部４３、４３に接合用パネル両端部４４，４４をそれぞれ填め込んで接合させている。固着方法は、実施の形態１と同様のボルト、ナットによる固着である。またクッション材を支柱３と両突出部当接面４５および接合用パネル４１当接面との間に挿入接着することも実施の形態１と同様である。本実施例の場合は、工場における防音壁パネルの製作が容易である。
【００２６】
＜実施の形態４＞
図１０は、実施の形態４の部分拡大図であって、支柱５０が丸鋼管である場合を示している。正面板１１を延長・突出させた前方突出部当接面５１を、支柱５０と同径の半円形状に形成し、背面板１２を延長・突出させた後突出部当接面５２も同様に同径の半円形状に形成しているので、支柱５０は、両当接面５１，５２によって、極めて強固に挟み保持されている。両先端部と凹部との固着方法は、実施の形態２と同様であり、他の諸点もすべて、実施の形態１、２と同様である。
本発明の上記の実施の諸形態はすべて、背面板に多孔板を使用しているが、背面板に通常の孔のあいていない平板を使用することも可能である。この場合は、吸音板を１枚にすることもできる。このような防音壁は、歩車道分離型の道路や、鉄道等の路側部に使用する。
【００２７】
【発明の効果】
本発明は以上のような構成となっているので、次に述べるような効果を奏する。
（１）中央分離帯や路側部等に設けられた既設、新設の支柱に防音壁を設置する場合に、現場におけるボックスビーム等の取り付け、取り外し等の煩瑣な組立作業が全く必要でなく、作業時間、作業要員、労力、コストが大幅に減少する。
（２）車両等の往復が頻繁な高速道路等で作業する際に伴う危険が、作業の単純化により減少し、安全性が向上する。
（３）交通を遮断しての作業が減少するので、交通の円滑化が図れる。
（４）現場での作業が、ボルト、ナットの結合作業のみで、他はすべて工場加工となるので、コストが低減する。
（５）支柱に孔をあけないので、支柱の強度を損なうことを避けることができる。
【図面の簡単な説明】
【図１】本発明に係る防音壁１の立面図である。
【図２】図１のＡ−Ａ断面図である。
【図３】本発明に係る防護フェンス６とボックスビーム４及び下部支柱３を示す立面図である。
【図４】本発明の防音壁パネルの正面図である。
【図５】図４のＡ−Ａ断面図である。
【図６】図４のＢ−Ｂ断面図である。
【図７】本発明の実施の形態１の部分拡大図である。
【図８】本発明の実施の形態２の部分拡大図である。
【図９】本発明の実施の形態３の部分拡大図である。
【図１０】本発明の実施の形態４の部分拡大図である。
【図１１】従来技術の落としこみ方式を示す図である。
【図１２】従来技術の落としこみ方式を示す図である。
【図１３】従来技術のボルト接合方式を示す図である。
【図１４】従来技術のボルト接合方式を示す図である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sound barrier installed upright on a roadside section of a road, such as a median strip of a road, a road, a railroad, etc., and a technology for constructing a sound barrier by standing upright columns at predetermined intervals regardless of existing or newly installed About.
[0002]
[Prior art]
Conventionally, there have been the following soundproof walls to be attached to columns vertically fixed to a concrete base of the ground and the construction method thereof.
One is called a drop-in type. As shown in FIG. 11, a peripheral frame member 61 is integrally attached and fixed to the periphery of the soundproof plate 60 in advance to produce a soundproof panel 62 with a frame, and this soundproof panel is installed. In this construction method, the soundproof panel is fixed by an appropriate method after being dropped from above between adjacent columns 63 made of H-shaped steel. Further, in the structure shown in FIG. 12, both side edges 64 of the soundproof wall are protruded so as to sandwich both side surfaces of both flanges of the H-shaped steel 63 or both side surfaces of the square steel column, and formed between the both side edges. elaborate fitting the strut in the recess 65 which is attached elaborate dropped soundproof walls from above with respect to the column, a support column clamping type are disclosed in real-Sho 56-17539 Patent like.
[0003]
The other is disclosed in JP-A-6-33425 and JP-A-10-46535, and the former has a peripheral frame member 61 attached to the periphery of the soundproof plate 60 as shown in FIG. A soundproof panel with a frame is prepared in advance, and a mounting bolt 66 is fixed upright on a column 63 standing on the site, and a mounting hole of the soundproof panel is fitted into the mounting bolt 66. As shown in FIG. 14, the latter tightens the nut 67. The latter is a dummy edge that is applied to the side edge 64 of the soundproof panel 62 and a convex edge 64 that contacts one side of the column 63, and the other side of the column 63. The panel 68 is formed with a concave portion 69 that is recessed in the same shape as the thickness of the panel 68. The dummy panel 68 is attached to the other side of the column 63 with a plurality of bolts 70, 70. Edge 64 is one side of support 63 Brought into contact, in a state where the concave portion 69 is abutted dummy panel 68, it is an bolted. Thus, what is disclosed in both publications is a method in which bolt holes are formed in the columns according to the holes drilled in the soundproof wall by factory processing, and the bolt holes of the soundproof wall and the columns are combined and coupled by bolts. .
[0004]
[Problems to be solved by the invention]
The above-mentioned method of dropping from the top does not require the work of hole alignment and bolt tightening at the construction site, so work efficiency is improved and labor is reduced. This assembly work is a field construction and is quite complicated. In addition, when installing a new soundproof wall to an existing median strip, etc., it is necessary to remove and install the box beam, which is as complicated as new construction, and requires considerable labor and work time. There was a drawback that the traffic of the vehicle had to be stopped for a long time. In addition, when a hole is made in the support, there is a problem that the strength of the support is lowered. In addition, the work of drilling bolt holes in the pillars in line with the holes made in the soundproof wall by factory processing is also on-site construction, and the work of inserting and tightening bolts is also on-site construction, so work on roads where traffic is frequent Was dangerous and had many limitations.
[0005]
Further, in order to perform hole alignment quickly and easily, it is necessary to make the hole in the support column oval or large. However, if such a hole is made, there is a problem that the strength of the support column is weakened.
[0006]
The present invention has been made in view of the above-described problems of the prior art, and its purpose is to install a soundproof wall on an existing or newly installed column provided in a median strip or a roadside. Another object of the present invention is to provide a sound barrier that can be easily and safely attached and a method for attaching the same, which is simple and does not involve complicated work such as drilling a pillar.
[0007]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention is configured as follows.
<Invention of Claim 1>
The soundproof wall of the road or the like of the present invention is a soundproof wall that is continuously constructed by juxtaposing and joining soundproof wall panels on the left and right sides of a column erected at a predetermined interval on the ground. At the side end of the soundproof wall panel, the panel front plate is extended and protruded, and the front protrusion that makes the rear surface of the front plate contact the front side surface of the column and the side end of the other soundproof wall panel Extending and projecting the back plate, providing a rear projecting portion for bringing the back surface of the back plate into contact with the rear side surface of the column, and fixing the tip of the front projecting portion to the front plate of the other soundproof wall panel, The soundproof wall panel is joined by fixing the front end of the rear protrusion to the back plate of one of the soundproof wall panels.
[0008]
<Invention of Claim 2>
In the soundproof wall panel of the present invention, the panel front plate and / or the back plate is a perforated plate, and a sound absorbing material is arranged inside, and the rear wall of one of the soundproof wall panels protrudes backward. It is characterized in that a rear concave portion is provided that is fixed by inserting the front end portion of the portion, and a front concave portion that is fixed by inserting the front end portion of the front protruding portion is provided on the front plate of the other soundproof wall panel.
[0009]
<Invention of Claim 3>
The present invention is also such that the front and rear projecting portions that are fitted and fixed in the two concave portions are bent in the inner side direction of the panel to form a key shape, and the two concave portions are the key shape. It has the depth which stuffs both the front-end | tip parts.
[0010]
<Invention of Claim 4>
The present invention also has a plate-like shape in which the front plates of both panels are extended and protruded at the side end portions of the adjacent soundproof wall panels, and the front side surfaces of the columns are brought into contact with each other and are brought into contact with the rear side surfaces of the columns. Both soundproof wall panels are joined by fixing both ends of the joining panel to both soundproof wall panel back plates.
[0011]
<Invention of Claim 5>
The both soundproof wall panel back plates are provided with recesses that are fitted and fixed at both ends of the plate-like joining panel.
[0012]
<Invention of Claim 6>
The strut is made of a round steel pipe, and a semicircular strut abutting portion having substantially the same diameter as the strut is provided on the front projecting portion and the rear projecting portion.
<Invention of claim 7>
The present invention is characterized in that a cushioning material is disposed at each portion where the front side surface or the rear side surface of the support column and the front projecting portion, the rear projecting portion, or the plate-like joining panel abut.
[0014]
<Invention of Claim 8>
The present invention is characterized in that an adjustment plate movable up and down is provided at an upper end portion of the soundproof panel.
<Invention of Claim 9>
In the construction method of the present invention, the soundproof wall panels are juxtaposed on the left and right of the pillars erected at a predetermined interval on the ground, and the panel front plate is extended at the side end of one adjacent soundproof wall panel. In the rear projecting part, the rear surface of the front plate in the projecting front projecting part is brought into contact with the front side surface of the support column, and the panel rear panel is extended and projected at the side end of the other soundproof wall panel. The back surface of the back plate is brought into contact with the rear side surface of the column, the front end portion of the front projecting portion is fixed to the front plate of the other soundproof wall panel, and the front end portion of the rear projecting portion is fixed to one soundproof wall panel. It is characterized in that it is continuously constructed by adhering both soundproof wall panels to the back plate.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
<Embodiment 1>
1 is a first embodiment of the present invention, a protective fence 6 and a box beam 4 installed in a median strip of a road, a lower column 3 supporting them, and an elevation view attached to the lower column 3; 2 is a cross-sectional view taken along the line AA of FIG. 1, FIG. 3 is an elevation view showing the protective fence 6 and the box beam 4 and the lower column 3 before the installation of the soundproof wall panel 8, and FIG. It is a front view of a wall panel. ,
[0016]
As shown in FIG. 3, the protective fence 6 installed in the existing median strip is fixed to the concrete base 2 of the ground, and is vertically attached to the upper ends of the columns 3 standing upright at intervals of about 2 m. A box beam 4 is supported substantially parallel to the road surface, and a protection composed of, for example, expander metal or the like between the second support columns 5 and 5 which are vertically arranged on the upper surface of the box beam 4 at a pitch of about 3 m. A fence 6 is attached. The box beam 4 is typically a square steel pipe having a cross section of 200 × 150 mm and a plate thickness of about 5 mm. The box beam 4 is provided with a slit into which a flat plate-like support member 8 attached with a bolt 7 is fitted at the upper end portion of the column 3, and the box beam 4 is covered from above so that the support member 8 is covered with the slit. It is supported by inserting.
[0017]
As shown in FIG. 5, the soundproof wall panel of the present invention has a panel front plate 11 and a panel back plate 12 bent at both upper and lower ends, respectively, and is provided with flat plates 32 and 32 on the upper and lower sides. Two sound absorbing plates 24, 24 are arranged with the partition plate 23 interposed therebetween, and the two panel plates 12, 13, the upper and lower flat plates 32, 32, and the partition plate 23 are tightened together to provide a soundproof wall having a sound absorbing function. It is configured as a panel 9.
An adjustment plate 25 is joined to the upper ends of the panel front plate 11 and the back plate 12 of the soundproof panel 9 by bolts, and the bolt holes of the adjustment plate 25 are elongated in the vertical direction.
[0018]
The joining of the adjacent soundproof walls around the support column 3 will be described with reference to FIGS. At the side end 13 of the soundproof wall panel 9, the front panel 11 is extended and protruded to provide a front protrusion 14. The front protrusion 14 includes a front column contact surface 15 that contacts the front side surface 26 of the column 3 and a front tip 16 that has a plurality of bolt holes (two in the drawing) in the vertical direction. In order to make it contact | abut to the support | pillar front side surface 26, it is made thicker than the front board 11. FIG. Similarly, the other adjacent soundproof wall panel 10 is also provided with a rear projecting portion 17 by extending and projecting the panel back plate 12 at the side end portion 13 of the soundproof wall panel 10 so as to contact the rear side surface 27 of the column 3. It consists of a rear projecting portion strut abutting surface 18 in contact and a rear tip 19 provided with a plurality (two in the figure) of bolt holes. The side end 13 of the soundproof panel 10 is provided with a recess 20 in which the rear end 19 of the soundproof wall 10 is fitted in the back plate 12 on the opposite side of the front protrusion 14. The recess 20 is formed in a notch shape by retreating the back plate 12 by the thickness of the rear protrusion 17 and removing the sound absorbing plate at this portion. In addition, a recess 20 into which the front tip 16 is fitted is formed at the side end of the soundproof panel 10 at the same depth as the thickness of the tip 16. Therefore, the front plate 11 and the back plate 12 of both panels are joined without a step.
[0019]
The left and right soundproof panels sandwiching the next support column 3 are also provided with the same depth and thickness in the protruding portion and the recessed portion, so that both panels are joined without any step. In this way, all the panels in the median strip are joined together without any step, so that a single soundproof wall is constructed.
[0020]
In the recess 20, holes are formed in the back plate 12 at positions corresponding to the plurality of bolt holes provided in the front end portion 16, and a fixing nut 21 is fixed inside. By inserting the fixing bolt 22 from the bolt hole and screwing it with the nut 21, the front end portion 16 provided on the front plate 11 of the panel 9 is inserted into the recess 20 provided on the front plate 11 of the adjacent panel 10. Stick. Similarly, the rear end 19 of the panel 10 is fixed to the recess 20 of the back plate 12 of the panel 10 with bolts 22 and nuts 21. The bolt hole is formed of a long hole or the like so that it can be easily adjusted during joining.
When the front end portions 16 and 19 and the concave portions 20 and 20 are joined together, the front strut abutting surface 15 and the rear side are disposed on the front side surface 26 and the rear side surface 27 of the column 3 positioned at the center of the side end portions 13 and 13 of both panels. Since the strut abutting surface 18 abuts, the panels 9 and 10 are firmly bonded by holding the strut tightly between the front plate 11 and the back plate 12.
[0021]
A cushion material 28 is inserted and bonded between the column contact surfaces 15 and 18 and the column side surfaces 26 and 27 of both panels, so as to achieve a tighter adhesion and prevent damage to the contact surfaces. Yes. Neoprene rubber is used for the cushion material 28.
[0022]
When building a soundproof wall 1 between the lower columns 3 of the median strip, whether existing or new, the soundproof panels 9 and 10 manufactured in the factory are brought to the site according to the interval between the columns, and the panel 9 is set up. Thus, the front projecting portion column contact surface 15 is brought into contact with the column front side surface 26. Next, the panel 10 is similarly erected so that the rear projecting portion column contact surface 18 contacts the column rear surface 27. Next, the fixing bolt 22 is inserted into the bolt hole provided in the front end portion 16 and screwed into the fixing nut 21 fixed to the corresponding recess 20. Next, the fixing bolt 22 is similarly inserted into the bolt hole provided in the rear end portion 19 and screwed into the fixing nut 21 fixed to the corresponding recess 20. Thus, when the front projecting portion 14 and the rear projecting portion 17 come into contact with the front side surface 26 and the rear side surface 27 of the column and the bolts 22 are tightened, the panel 9 and the panel 10 tightly fix the column 3 via the cushion material 28. Tightly bond in an enclosed shape. Since the bolt hole is formed as a long hole, the soundproof wall panels 9 and 10 that are closely supported by the column 3 are supported by the column 3 by an extremely simple operation of screwing the bolt into the nut. Are firmly joined. Next, the adjustment plate 25 attached to the upper ends of the soundproof wall panels 9 and 10 is lifted upward to eliminate the gap between the box beam 4 and the soundproof wall panels 9 and 10. By repeating the same operation, a continuous soundproof wall having no steps can be easily constructed in a short time. In this way, even on a highway where there is a large amount of traffic and the vehicle reciprocates at high speed, a soundproof wall can be constructed with a simple ultra-short work. Furthermore, since it is not necessary to make a hole in the support, the strength of the support is not impaired.
[0023]
<Embodiment 2>
The second embodiment of the present invention is the same as the first embodiment except that the protrusions and the recesses of the panels 9 and 10 to be joined are different.
As shown in the partially enlarged view of FIG. 8, the front panel 14 is extended and protruded at the side end 13 of the soundproof wall panel 9 to provide a front protrusion 14. The front projecting portion 14 includes a front projecting portion strut abutting surface 15 that abuts the front side surface 26 of the strut 3 and a front tip portion 30 having a plurality of (two in the drawing) bolt holes. The front plate 11 is made wider than the front plate 11 so as to abut on the front side surface 26 of the third plate. Further, the front tip portion 30 is formed to have a total thickness of the front plate 11 and the sound absorbing material 24, and the end surface of the front tip portion 30 is fixed to the partition plate 23 at the center of the soundproof panel 9. Similarly, the other adjacent soundproof wall panel 10 is also provided with a rear projecting portion 17 by extending and projecting the panel back plate 12 at the side end portion 13 to contact the rear side surface 27 of the support column 3. It comprises a contact surface 18 and a rear tip portion 33 having a plurality of bolt holes (two in the figure). The rear tip portion 33 has a thickness that reaches the center of the panel and is fixed to the partition plate 23. ,
A deep concave portion 31 into which the rear end portion 33 of the adjacent soundproof wall 10 is fitted in the back plate 12 on the opposite side of the soundproof panel 9 provided with the front projecting portion 14 cuts the back plate 12 and the sound absorbing material 24. Is provided. Since the depth of the concave portion 31 is formed to be the same as the thickness of the rear tip portion 33, the panels 9 and 10 are joined without a step. Similarly, between all the sound barrier panels, a thick protrusion and a deep recess are similarly formed between the adjacent sound barrier panels, and all the panels are joined without any step to form a continuous sound barrier.
[0024]
In the recess 31, a hole is made in the partition plate 23 at a position corresponding to the bolt hole in the front tip portion 16, and the fixing nut 21 is fixed inside the partition plate 23, and the bolt hole in the front tip portion 30. By inserting the fixing bolt 22 and screwing with the nut 21, the protruding front end portion 30 provided on the front plate 11 is fixed to the deep recess 31 provided on the front plate 12 of the adjacent panel 10. . Similarly, the rear end portion 33 of the adjacent panel is fixed to the deep recess 31 in which the back plate 12 and the sound absorbing plate 24 are cut. In addition, the bolt hole is comprised by the long hole etc. so that adjustment is possible.
Since both the panels 9 and 10 tightly hold the side end portion 13 between the front plate 11 and the back plate 12 in addition to the both side surfaces of the support column 3 and are firmly bonded to each other, as compared with the first embodiment. The connection with the column 3 is dense. The point which adhere | attaches the cushion material 28 on the support | pillar contact surface is the same.
[0025]
<Embodiment 3>
FIG. 9 is a partially enlarged view showing Embodiment 3 of the present invention. At both side end portions 13 of the adjacent soundproof wall panels 9 and 10, both panel back plates 12 and 12 are extended and protruded and brought into contact with the column rear side surface 40, so that a slight gap is formed at the center portion of the column rear side surface. I'm keeping up. A flat joining panel 41 is brought into contact with the front side surface 42 of the support and is surrounded by the support 3. Both ends 44 and 44 of the joining panel are fitted and joined to the recesses 43 and 43 provided in the front plates 11 and 11 of the soundproof wall panels 9 and 10, respectively. The fixing method is fixing with bolts and nuts as in the first embodiment. Also, the cushion material is inserted and bonded between the support column 3 and the both projecting portion contact surfaces 45 and the joining panel 41 contact surface, as in the first embodiment. In the case of the present embodiment, it is easy to produce a soundproof wall panel in a factory.
[0026]
<Embodiment 4>
FIG. 10 is a partial enlarged view of the fourth embodiment, and shows a case where the support column 50 is a round steel pipe. A front projecting portion contact surface 51 that extends and projects the front plate 11 is formed in a semicircular shape having the same diameter as the support column 50, and a rear projecting portion contact surface 52 that extends and projects the back plate 12 is similarly formed. Since it is formed in a semicircular shape with the same diameter, the support column 50 is sandwiched and held extremely firmly by both contact surfaces 51 and 52. The fixing method of both the tip portions and the recesses is the same as in the second embodiment, and all other points are the same as in the first and second embodiments.
All of the above embodiments of the present invention use a porous plate for the back plate, but it is also possible to use a flat plate having no normal holes for the back plate. In this case, one sound absorbing plate can be used. Such a soundproof wall is used for a roadside separation type road or a roadside part of a railway or the like.
[0027]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
(1) When installing soundproof walls on existing or new columns provided in the median strip or roadside, no complicated assembly work such as installation and removal of box beams at the site is required. Time, labor, labor, and costs are greatly reduced.
(2) The danger associated with working on an expressway, etc., where vehicles reciprocate frequently, is reduced by simplifying the work, and safety is improved.
(3) Since the work to block the traffic is reduced, the traffic can be smoothed.
(4) Since the work at the site is only bolt and nut connection work and everything else is factory processing, the cost is reduced.
(5) Since no holes are made in the support, it is possible to avoid damaging the strength of the support.
[Brief description of the drawings]
FIG. 1 is an elevational view of a soundproof wall 1 according to the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
FIG. 3 is an elevational view showing the protective fence 6, the box beam 4 and the lower column 3 according to the present invention.
FIG. 4 is a front view of the soundproof wall panel of the present invention.
5 is an A-A sectional view of FIG.
6 is a sectional view taken along B-B of FIG.
FIG. 7 is a partially enlarged view of the first embodiment of the present invention.
FIG. 8 is a partially enlarged view of Embodiment 2 of the present invention.
FIG. 9 is a partially enlarged view of Embodiment 3 of the present invention.
FIG. 10 is a partially enlarged view of Embodiment 4 of the present invention.
FIG. 11 is a diagram showing a dropping method of the prior art.
FIG. 12 is a diagram illustrating a drop-in method according to the prior art.
FIG. 13 is a view showing a conventional bolt joining method.
FIG. 14 is a view showing a conventional bolt joining method.

Claims

It is a soundproof wall that is constructed continuously by connecting and joining soundproof wall panels side by side to the left and right of the pillars erected at a predetermined interval on the ground,
A front projecting portion that extends and projects the panel front plate at the side end portion of one adjacent soundproof wall panel, and abuts the back surface of the front plate to the front side surface of the column;
At the side end of the other soundproof wall panel, a panel rear plate is extended and projected, and a rear projecting portion is provided that abuts the rear surface of the rear plate against the rear side surface of the column.
The front end portion of the front projecting portion is fixed to the front plate of the other soundproof wall panel, the front end portion of the rear projecting portion is fixed to the rear plate of one soundproof wall panel, and both soundproof wall panels are joined. A noise barrier such as roads.

The soundproof wall panel has a panel front plate and / or a back plate that is a perforated plate, and has a sound absorbing material disposed therein,
The back plate of one of the soundproof wall panels is provided with a rear recess for fitting and fixing the tip of the rear protrusion, and the tip of the front protrusion is inserted and fixed to the front plate of the other soundproof wall panel. The soundproof wall for a road or the like according to claim 1, wherein a front concave portion is provided.

The front and rear protrusions that are inserted into and fixed to the two concave portions are bent in the inner side direction of the panel to form a key shape, and the two concave portions have the key shape of the two tip portions. The soundproof wall for roads or the like according to claim 1 or 2, which has a depth to be embedded.

At both side edges of the two adjacent soundproof wall panels, both panel front panels are extended and protruded so that the front side surfaces of the columns are brought into contact with each other, and both ends of the plate-like joining panel are brought into contact with the rear side surfaces of the columns. The soundproof wall for a road or the like according to claim 1 or 2, characterized in that the soundproof wall panels are joined to each other by fixing the portions to the soundproof wall panel back plates.

The soundproof wall for a road or the like according to claim 4, wherein a concave portion that is fitted and fixed at both ends of the plate-like joining panel is provided on each of the soundproof wall panel back plates.

The strut is made of a round steel pipe, and a semicircular strut abutting portion having substantially the same diameter as the strut is provided in the front projecting portion and the rear projecting portion. A soundproof wall such as a road according to any one of claims 1 to 3.

The cushion material is arranged in each site | part with which the front side surface or rear side surface of the said support | pillar contact | abuts the said front protrusion part, a back protrusion part, or a plate-shaped joining panel, It is characterized by the above-mentioned. A noise barrier such as a road according to claim 6.

The soundproof wall for roads or the like according to any one of claims 1 to 7, wherein an adjustment plate that is movable up and down is provided at an upper end portion of the soundproof panel.

Sound barrier panels are juxtaposed on the left and right of the columns that are erected on the ground at a predetermined interval.
At the side end of one adjacent soundproof wall panel, the back surface of the front plate in the front projecting portion formed by extending and projecting the panel front plate is brought into contact with the front side surface of the column,
At the side end of the other soundproof wall panel, the rear surface of the rear plate in the rear projecting portion formed by extending and projecting the panel rear plate is brought into contact with the rear side surface of the column.
The front end of the front protrusion is fixed to the front plate of the other soundproof wall panel, and the front end of the rear protrusion is fixed to the back plate of one soundproof wall panel to join the soundproof wall panels together. The construction method of soundproof walls, such as a road, in any one of Claims 1-7 characterized by the above-mentioned.