JP2592512B2 - Construction method of PC snow shelter - Google Patents
Construction method of PC snow shelterInfo
- Publication number
- JP2592512B2 JP2592512B2 JP31014388A JP31014388A JP2592512B2 JP 2592512 B2 JP2592512 B2 JP 2592512B2 JP 31014388 A JP31014388 A JP 31014388A JP 31014388 A JP31014388 A JP 31014388A JP 2592512 B2 JP2592512 B2 JP 2592512B2
- Authority
- JP
- Japan
- Prior art keywords
- shelter
- snow
- snow shelter
- foundation
- piece
- 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.)
- Expired - Lifetime
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はプレストレストコンクリート（PC）スノーシ
ェルターの架設工法に関する。The present invention relates to a method for erection of a prestressed concrete (PC) snow shelter.
わが国の国土面積の52％が雪国であり、防雪計画は重
要な防災対策である。近年積雪地方における冬季の道路
交通確保のために、除雪、融雪などの諸施策がなされて
おり、また積雪やなだれに対してはスノーシェッドで対
処することができるが、山間部特に吹き溜りの激しい区
域等においては、これらの施策は適切とは言い難く、ス
ノーシェルターを架設して道路全体を防護することが最
も適切である。Snow cover accounts for 52% of Japan's land area, and snow prevention planning is an important disaster prevention measure. In recent years, various measures such as snow removal and snow melting have been taken to secure road traffic in winter in snowy regions.Although snowfall and avalanches can be dealt with by snowsheds, it can be handled in mountainous areas, especially in areas with heavy snowdrifts. In such cases, these measures are hardly appropriate, and it is most appropriate to install a snow shelter to protect the entire road.
このようなスノーシェルターは、耐候性、耐久性など
の観点からコンクリート製のシェルターが好ましい。し
かしコンクリートは現場打ち施工する場合には、型枠そ
の他多くの機械を必要とし、また鉄筋組立や養生期間を
必要とするなど架設工期、工数が多大となる。これを避
けるため、安価短工期に施工することのできる高品質の
プレストレストコンクリート（PC）部材が開発されてい
る（実開昭59−192911、実開昭60−96412。） 〔発明が解決しようとする課題〕 本発明は上記実情に鑑みPCスノーシェルターの合理的
で迅速な架設工法を提供することを目的とするものであ
る。Such a snow shelter is preferably a concrete shelter from the viewpoint of weather resistance, durability and the like. However, when cast-in-place concrete is used, a formwork and many other machines are required, and a rebar assembly and a curing period are required. In order to avoid this, high quality prestressed concrete (PC) members that can be constructed inexpensively and in a short construction period have been developed (Japanese Utility Model Laid-Open Nos. 59-192911, 60-96412). SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a reasonable and quick construction method of a PC snow shelter.
本発明は、上記目的を達成するため次の技術手段によ
って構成される。The present invention is configured by the following technical means to achieve the above object.
スノーシェルターの単位パネル（以下ピースとい
う）を予め製作しておく。このピースは、３ヒンジアー
チ構造のスノーシェルターを形成する単位パネルとす
る。このピースはスノーシェルターの長さ方向（路線に
添う路線の長手方向）の寸法が単位長で、路線に直角な
周方向がほぼ1/4円周の円弧状をなすものである。この
ピースは、左右対称な２枚のパネルを頂部で結合して、
アーチ形を形成し、その両脚部をシェルター基礎上に固
定する。また、スノーシェルターの路線に沿う長さ方向
は隣接パネルとの結合部を有し、数個のピースを緊結し
て１ブロックとする。A snow shelter unit panel (hereinafter referred to as a piece) is manufactured in advance. This piece is a unit panel forming a snow shelter having a three hinge arch structure. This piece has a unit length in the length direction of the snow shelter (longitudinal direction of the route along the route), and a circumferential direction perpendicular to the route forms an arc shape of approximately 1/4 circle. This piece combines two symmetrical panels at the top,
An arch is formed and its legs are fixed on the shelter foundation. Further, the length direction along the route of the snow shelter has a connecting portion with an adjacent panel, and several pieces are tightly connected to form one block.
スノーシェルターを架設すべき路線の両側部に、路
線に沿うシェルター基礎を構築する。On both sides of the route where the snow shelter is to be erected, construct a shelter foundation along the route.
この基礎は、シェルターの両脚部の垂直、水平荷重を
受けるもので、路線に沿う連続布基礎とすることが好ま
しい。必要に応じて、地中梁等によって、両側の基礎を
連結する設計としてもよい。This foundation receives vertical and horizontal loads on both legs of the shelter, and is preferably a continuous cloth foundation along the route. If necessary, an underground beam or the like may be used to connect the foundations on both sides.
この両側の基礎より路線の内側に路線に沿う軌条を
仮設する。この軌条のレールゲージは通常は一定とする
が、場合によっては広狭を付してもよい。Rails along the route are temporarily installed inside the route from the foundations on both sides. The rail gauge of this rail is usually constant, but may be wider or narrower depending on the case.
仮設した軌条上にスノーシェルター作業台車を載置
する。作業台車は、軌条上を走行する車輪を有し、ジャ
ッキ、作業台等を備えている。少なくともピースの単位
長の２倍より長い車輌とすることが好ましい。作業台車
は架設したスノーシェルター内を走行できる輪郭寸方
（車輌限界）の枠組を有し、その中央頂部にはシェルタ
ーのピースを受ける昇降ジャッキを備える。The snow shelter work cart is placed on the temporary rail. The work vehicle has wheels running on rails, and is equipped with a jack, a work table, and the like. Preferably, the vehicle is at least twice as long as the unit length of the piece. The work vehicle has a frame of a contour dimension (vehicle limit) that can travel in the installed snow shelter, and is provided with a lifting jack for receiving a piece of the shelter at the center top.
この作業台車は、軌条上に跨がる鳥居状または門型の
構造物として、作業休止時にその下を自動車等が通行で
きる構造物とすれば、交通遮断を最小限に留めることが
でき好適である。If this work vehicle is a torii or a gate-shaped structure straddling on the rail, and a structure such that a car or the like can pass under the work stop when work is stopped, traffic blockage can be minimized, which is preferable. is there.
また、路線の幅員の広狭に応じてレールゲージを可変
とした構造とすることもできる。In addition, a structure in which the rail gauge is variable according to the width of the route can be adopted.
前記スノーシェルターピースを架設現場に搬入し、
トラッククレーン等にてこれを吊上げ、前記シェルター
基礎および架設台車上に載せる。このとき、左右一組の
対称なピースを頂部で突合するように置く。Carry the snow shelter piece to the construction site,
This is lifted by a truck crane or the like and placed on the shelter foundation and the erection trolley. At this time, a set of left and right symmetrical pieces is placed so as to abut on the top.
ピースの頂部を結合する。また既設の隣接パネルと
の結合部を結合する。Join the tops of the pieces. In addition, the connecting portion with the existing adjacent panel is connected.
昇降ジャッキを降下させ、作業台車を次のピース架
設作業位置に移動する。Lower the lifting jack and move the work cart to the next piece erection work position.
上記〜の工程を繰返すことにより例えばピース
数個を１ブロックとしたスノーシェルターを順次構築す
ることができる。スノーシェルターの長手方向（路線の
長手に沿う方向）の数個のピース１ブロックとし、これ
らをプレストレス導入によって緊結する。この場合、予
めコンクリート中に埋設してあるシースにプレストレス
トコンクリート用鋼材を挿通し、この鋼材に応力を導入
してその両端を定着する。By repeating the above steps (1) to (4), for example, a snow shelter having several pieces as one block can be sequentially constructed. Several pieces are formed as one block in the longitudinal direction of the snow shelter (along the length of the road), and these are tied together by the introduction of prestress. In this case, a steel material for prestressed concrete is inserted into a sheath buried in the concrete in advance, and stress is introduced into the steel material to fix both ends thereof.
なお、本工法は路線の広狭に応じて、敷幅サイズの
異なるパネルを施工することも妨げるものではない。In addition, this method does not prevent the construction of panels having different widths according to the width of the route.
スノーシェルターの採光窓の取付工事や防水のため
の外装工事等は以上の工程に引続き行えばよい。The installation work of the daylighting window of the snow shelter and the exterior construction work for waterproofing may be performed following the above steps.
本発明のPCスノーシェルターは （１）山地道路、特に両切土や片切土によって造成され
た吹き溜りを起こしやすい地形の道路、 （２）除雪が困難なトンネル坑口付近、 （３）縦断勾配の急な坂道、 （４）地吹雪が発生しやすい場所 などに用いられる。The PC snow shelter according to the present invention comprises: (1) a mountain road, particularly a road having a terrain formed by both cuts and single cuts, which is likely to cause snowdrifts; (2) a tunnel entrance where snow removal is difficult; and (3) a vertical slope. It is used on steep slopes, and (4) places where snowstorms are likely to occur.
本発明によればプレキャストコンクリートスノーシェ
ルターを短期間に施工することができる。According to the present invention, a precast concrete snow shelter can be constructed in a short time.
本発明方法で施工する尖頭形アーチ構造スノーシェル
ターの例を第７図に骨格図で示した。第７図は曲率半径
Ｒを一定とし、シェルターの幅員W1、W2に応じて調整し
た３ヒンジアーチ形構造である。この部材は、 荷重条件 設計積雪深:Hs＝２、３、４、5m 設計水平震度:kh＝0.2 道路条件 平面曲線:R≧50m 縦断勾配:i≦８％ 部材条件 部材標準幅:2.49m 部材厚さ:0.25、0.30m 断面形状：矩形断面 構造種別：ポストテンション方式プレストレストコンク
リート であり、シェルター幅員Ｗ＝９〜12m、アーチ半径Ｒ＝6
mとし、積雪深さに対応した力学的構造を有している。FIG. 7 is a skeletal view of an example of a snow archer having a pointed arch structure constructed by the method of the present invention. FIG. 7 shows a three-hinge arch structure in which the radius of curvature R is constant and adjusted according to the widths W 1 and W 2 of the shelter. This member is under load condition Design snow depth: Hs = 2, 3, 4, 5m Design horizontal seismic intensity: kh = 0.2 Road condition Plane curve: R ≧ 50m Longitudinal gradient: i ≦ 8% Member condition Member standard width: 2.49m Member Thickness: 0.25, 0.30m Cross-sectional shape: rectangular cross-section Structure type: Post-tension type prestressed concrete, shelter width W = 9-12m, arch radius R = 6
m and has a mechanical structure corresponding to the snow depth.
また、道路の平面線形が曲線の場合、横断勾配であっ
た場合、車道部に拡幅部がある場合などには、これらに
対応する異形部材を用いる。Further, when the road has a curved linear shape, a cross slope, or a widened portion on the roadway, a deformed member corresponding to these is used.
第８図（ａ）は実施例のスノーシェルターの横断面
図、第８図（ｂ）はその側面図である。この実施例の単
位パネルは敷幅10m、高さ6mのアーチ用であって、道路
長手方向寸法2.5m、アーチに沿う長さ（内側）7mであ
る。この単位パネル有効幅員6.5m、高さ4.7mの車輌限界
を有する。窓（採光板）９の大きさは1m×2mである。FIG. 8A is a cross-sectional view of the snow shelter of the embodiment, and FIG. 8B is a side view thereof. The unit panel of this embodiment is for an arch having a width of 10 m and a height of 6 m, and has a length of 2.5 m in the longitudinal direction of the road and a length (inside) of 7 m along the arch. This unit has an effective panel width of 6.5m and a height of 4.7m. The size of the window (lighting plate) 9 is 1 mx 2 m.
第１図〜第３図に本発明の架設工法の説明図を示し
た。1 to 3 show explanatory views of the erection method according to the present invention.
第１図、第２図はトラック８によって運搬されてきた
シェルター単位パネル１が、クレーン２によって架設位
置に取り付けられる状況を示している。FIGS. 1 and 2 show a situation where the shelter unit panel 1 transported by the truck 8 is attached to the erection position by the crane 2.
シェルター基礎３が路線の長手方向に路線の両側部に
構築されている。このシェルター基礎３より内側に路線
の長手方向に沿って軌条４が敷設されており、この軌条
４上に作業台車５が載置されている。作業台車５は軌条
４上を走行する。Shelter foundations 3 are constructed on both sides of the line in the longitudinal direction of the line. A rail 4 is laid along the longitudinal direction of the line inside the shelter foundation 3, and a work vehicle 5 is mounted on the rail 4. The work vehicle 5 runs on the rail 4.
第１図においてビテー足場６は架設されたスノーシェ
ルター７の外装工事のための足場である。In FIG. 1, a bite scaffold 6 is a scaffold for exterior construction of a built snow shelter 7.
第４図に示すスノーシェルターピース１は、第５図に
示すように、シェルター基礎３上に左右１組を組立てて
１セットとし、ピース１の頂部1aを相互に連結し、脚部
1bはシェルター基礎３上に固定される。このような左右
１セットのピース４組を第６図に示すように１ブロック
として緊結する。ブロック間は縁切りとし、伸縮性を有
する目地を施工する。As shown in FIG. 5, the snow shelter piece 1 shown in FIG. 4 is constructed by assembling one set of left and right pieces on a shelter base 3 and connecting the tops 1a of the pieces 1 to each other.
1b is fixed on the shelter foundation 3. The four sets of such one set of left and right pieces are tied together as one block as shown in FIG. Edges between blocks are cut off, and joints with elasticity are constructed.
第９図はシェルター基礎３とパネル１との取付構造の
例を示すもので、パネルに設けられた50mmφの孔10にそ
れぞれ32mmφのアンカーバー11（３本）を嵌入して基礎
と結合し無収縮モルタル12でグラウトされる。シェルタ
ー基礎３とパネルとの間には均しモルタル13、ゴム支承
14、エラスタイト15が介装される。横締孔16は40mmφの
シースが埋込まれており、第６図に示すようにピース４
枚を１ブロックとして横締めして自立させ、ブロック間
は伸縮目地を施工する。第10図は外装仕上の説明図であ
る。FIG. 9 shows an example of an attachment structure between the shelter foundation 3 and the panel 1. The anchor bars 11 (32 pieces) of 32 mmφ are respectively inserted into the holes 10 of 50 mmφ provided in the panel, and are connected to the foundation. Grouted with shrink mortar 12. Smooth mortar 13, rubber bearing between shelter foundation 3 and panel
14, elastite 15 is interposed. The lateral tightening hole 16 has a 40 mmφ sheath embedded therein, and as shown in FIG.
The sheets are tightened sideways as one block to make it stand alone, and expansion joints are installed between the blocks. FIG. 10 is an explanatory diagram of exterior finish.
第10図は外装施工の説明図である。上述のようにピー
ス１の頂部連結具23の連結締付、PC鋼材22の緊張定着、
シェルター基礎３との連結アンカーボルト11の固定、採
光窓の施工の後、外装施工を行う。FIG. 10 is an explanatory diagram of exterior construction. As described above, the connection of the top connector 23 of the piece 1 is tightened, the tension of the PC steel material 22 is fixed,
After fixing the connecting anchor bolts 11 to the shelter foundation 3 and constructing the lighting window, exterior construction is performed.
外装施工としては下地材、弾性シーリング材、防水シ
ート、バックアップ材を含む頂部防水工24、隣接部材間
防水工25および塗装工などを行う。As the exterior construction, a top waterproofing work 24 including a base material, an elastic sealing material, a waterproof sheet, and a backup material, a waterproofing work 25 between adjacent members, and a painting work are performed.
第11図は本発明のPCスノーシェルターの架設工法の全
体工事工程をフローチャートで示したものである。FIG. 11 is a flowchart showing the entire construction process of the construction method of the PC snow shelter of the present invention.
本発明に係るPCスノーシェルターは イ） 建設費、維持管理費、耐久性を含めたライフサイ
クルコストが経済的である。The PC snow shelter according to the present invention is a) Economical in terms of construction costs, maintenance costs, and life cycle costs including durability.
ロ） シェルター内は採光窓をとることによって、明る
さと視距を確保することができる。B) Brightness and viewing distance can be secured by taking a lighting window inside the shelter.
ハ） プレキャスト組立方式であるので、工期が短縮で
きる。C) The pre-cast assembly method shortens the construction period.
ニ） ３ヒンジアーチ構造（静定系）のため、部材端に
曲げモーメントは発生せず、基礎の施工が簡易であり、
沈下にも容易に対応できる。D) Because of the 3-hinge arch structure (static system), no bending moment is generated at the end of the member, and the foundation is easy to construct.
It can easily cope with settlement.
ホ） アーチ型構造のため、無雪期の美観が良い。E) The arched structure provides good aesthetics during the snowless season.
ニ） 周囲の景観との調和を計る外装仕上げも可能であ
る。D) An exterior finish that is in harmony with the surrounding landscape is also possible.
等の特徴を有する。Etc.
本発明によれば耐候性、耐久性に富むコンクリート製
スノーシェルターを短期間に容易に施工することができ
る。According to the present invention, a concrete snow shelter with high weather resistance and durability can be easily constructed in a short period of time.
第１図、第２図は本発明の実施例の施工状態を示す斜視
図、第３図は本発明方法の実施に用いるスノーシェルタ
ーパネルの（ａ）正面図、（ｂ）側面図、第４図はスノ
ーシェルターピースの斜視図、第５図はスノーシェルタ
ーの断面図、第６図はスノーシェルターの１ブロックの
斜視図、第７図はスノーシェルターの骨格図、第８図は
スノーシェルターの（ａ）横断面図、（ｂ）側面図、第
９図はシェルター基礎とパネルとの取付構造の（ａ）断
面図、（ｂ）一部断面を含む側面図、第10図は外装施工
の説明図、第11図は本発明工法のフローチャートであ
る。 １……単位パネル ２……クレーン ３……シェルター基礎 ４……軌条 ５……作業台車 ６……ビテー足場 ７……スノーシェルタ ８……トラック1 and 2 are perspective views showing a construction state of an embodiment of the present invention. FIG. 3 is (a) a front view, (b) side view, and fourth view of a snow shelter panel used for carrying out the method of the present invention. FIG. 5 is a perspective view of a snow shelter piece, FIG. 5 is a sectional view of the snow shelter, FIG. 6 is a perspective view of one block of the snow shelter, FIG. 7 is a skeleton view of the snow shelter, and FIG. a) a cross-sectional view, (b) a side view, FIG. 9 is (a) a cross-sectional view of an attachment structure between a shelter foundation and a panel, (b) a side view including a partial cross-section, and FIG. FIG. 11 is a flowchart of the method of the present invention. DESCRIPTION OF SYMBOLS 1 ... Unit panel 2 ... Crane 3 ... Shelter foundation 4 ... Rail 5 ... Work trolley 6 ... Bite scaffold 7 ... Snow shelter 8 ... Truck
Claims (1)
ストパネルであって、路線に沿う長さ方向が単位長で路
線に直角な周方向がほぼ1/4円周のスノーシェルターピ
ースを予め製作しておき、 スノーシェルター架設路線の両側部に路線に添うシェル
ター基礎を構築し、該基礎より内側に軌条を仮設し、 該軌条上に、スノーシェルター内を走行可能な外形寸法
を有し前記スノーシェルターピースの頂部を受ける昇降
ジャッキを備えた移動作業台車を載置し、 前記スノーシェルターピースを、前記シェルター基礎お
よび前記作業台車の昇降ジャッキ上に載せ、頂部を連結
し、隣接パネルとの結合部を結合し次いで前記昇降ジャ
ッキを降下させて作業台車を移動し、順次前記パネル組
立を繰返してスノーシェルターを構築するPCスノーシェ
ルターの架設工法。1. A precast panel forming a pointed three-hinge arch, in which a snow shelter piece having a unit length in a length direction along a route and a substantially 1/4 circumference in a circumferential direction perpendicular to the route is prepared in advance. In advance, a shelter foundation is constructed along both sides of the snow shelter erection line, and a rail is temporarily installed inside the foundation. The snow shelter has an outer dimension on the rail that can run in the snow shelter. Place a mobile work vehicle equipped with a lifting jack that receives the top of the piece, place the snow shelter piece on the lifting jack of the shelter foundation and the work vehicle, connect the tops, and connect the joint with the adjacent panel. PC snow shelter that combines and then lowers the lifting jack to move the work cart and repeats the panel assembly in order to build a snow shelter Erection method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31014388A JP2592512B2 (en) | 1988-12-09 | 1988-12-09 | Construction method of PC snow shelter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31014388A JP2592512B2 (en) | 1988-12-09 | 1988-12-09 | Construction method of PC snow shelter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02157307A JPH02157307A (en) | 1990-06-18 |
| JP2592512B2 true JP2592512B2 (en) | 1997-03-19 |
Family
ID=18001685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31014388A Expired - Lifetime JP2592512B2 (en) | 1988-12-09 | 1988-12-09 | Construction method of PC snow shelter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2592512B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013086655A1 (en) * | 2011-12-14 | 2013-06-20 | Kuang Zhongping | Arch-bridge arch type railway and highway protective covers |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791814B2 (en) * | 1992-10-15 | 1995-10-09 | ジオスター株式会社 | Arch-type shelter construction equipment |
| CN107905128A (en) * | 2017-11-03 | 2018-04-13 | 中交第公路勘察设计研究院有限公司 | Corrugated steel construction snow defence passage |
-
1988
- 1988-12-09 JP JP31014388A patent/JP2592512B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013086655A1 (en) * | 2011-12-14 | 2013-06-20 | Kuang Zhongping | Arch-bridge arch type railway and highway protective covers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02157307A (en) | 1990-06-18 |
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