JPH0567724B2 - - Google Patents
Info
- Publication number
- JPH0567724B2 JPH0567724B2 JP29358289A JP29358289A JPH0567724B2 JP H0567724 B2 JPH0567724 B2 JP H0567724B2 JP 29358289 A JP29358289 A JP 29358289A JP 29358289 A JP29358289 A JP 29358289A JP H0567724 B2 JPH0567724 B2 JP H0567724B2
- Authority
- JP
- Japan
- Prior art keywords
- roof
- impact force
- cushion material
- sand cushion
- pipe
- 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
- 239000004576 sand Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 23
- 230000003139 buffering effect Effects 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000011435 rock Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は道路又は鉄道用軌道を落石等から保護
するために設置されるシエツド、キーパー等の保
護構造物の衝撃力緩衝構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an impact force buffering structure for protective structures such as sheds and keepers installed to protect roads or railway tracks from falling rocks and the like.
［従来の技術］
一般にこの種の構造物は屋根を支持体により支
持して構成されており、鋼製とPC、RCによるコ
ンクリート製とが知られている。例えばコンクリ
ート製のシエツドは実公平１−4895号公報、特公
平１−2722号公報等で開示されているように、複
数のコンクリート製壁体である主桁を道路又は軌
道長手方向に向う横締用PC鋼材により一体に緊
結して屋根を形成し、この屋根の道路又は軌道幅
方向の両側を柱または壁に剛結して構成されてい
る。そして主桁構造は断面Ｔ型のものや断面アー
チ型のもの等が知られており、また主桁の支持構
造は主桁の両側を親柱と子柱で支持するもの、ま
た擁壁と親柱あるいは擁壁と擁壁で支持するもの
等種々のものが知られている。また、この種のコ
ンクリート製キーパーは実開昭62−196220号公
報、特開平１−244003号公報等で開示されている
ように、複数のコンクリート製壁体を道路又は軌
道長手方向に向う横締用PC鋼材により一体に緊
結して屋根を形成し、この屋根を道路又は軌道幅
方向の山側に斜めに設置して構成されている。こ
の屋根の支持構造は屋根を下部工と柱とに定着す
るものや下部工と山の壁部とに定着するもの等が
知られている。[Prior Art] This type of structure is generally constructed by supporting a roof with a support, and is known to be made of steel, concrete made of PC, or RC. For example, as disclosed in Japanese Utility Model Publication No. 1-4895, Japanese Patent Publication No. 1-2722, etc., concrete shelves are used to horizontally tighten multiple main girders, which are concrete walls, in the longitudinal direction of the road or track. The roof is formed by bonding the prestressing prestressing steel together to form a roof, and both sides of the roof in the width direction of the road or track are rigidly connected to columns or walls. Main girder structures are known to have a T-shaped cross section or an arch-shaped cross section, and support structures for the main girder include those in which both sides of the main girder are supported by master columns and child columns, and retaining walls and parent columns. Various types are known, such as those supported by pillars or retaining walls. In addition, this type of concrete keeper is disclosed in Japanese Utility Model Application No. 62-196220, Japanese Patent Application Laid-open No. 1-244003, etc., in which multiple concrete walls are horizontally fastened in the longitudinal direction of the road or track. The roof is formed by joining together with prestressing prestressing steel materials, and this roof is installed diagonally on the mountain side in the width direction of the road or track. Some known roof support structures include those in which the roof is fixed to a substructure and columns, and structures in which the roof is fixed to a substructure and a mountain wall.
これらの鋼製あるいはコンクリート製の各種の
保護構造物においては、落石等による衝撃力の緩
衝を目的として、一般に砂、砕砂または山土等の
サンドクツシヨン材を屋根上に敷いている。 In these various protective structures made of steel or concrete, a sand cushion material such as sand, crushed sand, or mountain soil is generally spread on the roof for the purpose of buffering the impact force caused by falling rocks and the like.
［発明が解決しようとする課題］
上記従来技術においては保護構造物の屋根上に
衝撃力分散効果をもたないサンドクツシヨン材を
敷いて衝撃力緩衝構造を形成していたが、これは
設計時に想定された程度の岩石が屋根上に落下し
た場合の衝撃力を緩衝することを目的としてお
り、設計時の想定を大幅に越えた巨大な岩石が支
持体の背面盛土上に落下する等の大きな衝撃力が
加わつた場合、保護構造物の背面盛土が破壊し、
支持体が道路側に押し倒されて屋根が破壊すると
いう事故を発生する問題があつた。[Problems to be Solved by the Invention] In the above-mentioned prior art, a sand cushion material that does not have an impact force dispersion effect is laid on the roof of the protective structure to form an impact force buffering structure. The purpose is to buffer the impact force in the event that a rock of a size expected to fall onto the roof would occur. If a large impact force is applied, the back embankment of the protective structure will be destroyed and
There was a problem in which the support was pushed toward the road and the roof was destroyed, causing an accident.
そこで本発明は巨大な岩石の落下等による衝撃
力の緩衝効果を得ることのできる保護構造物の衝
撃力緩衝構造を提供することを目的とする。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an impact force buffering structure for a protective structure that can buffer the impact force caused by the falling of a huge rock or the like.
［課題を解決するための手段］
本発明の保護構造物の衝撃力緩衝構造は、屋根
を支持する支持体の地山側背面盛土上に多数の管
を積み重ねてなる管積層を設け、この管積層上に
サンドクツシヨン材層を設けたものである。[Means for Solving the Problems] The impact force buffering structure of the protective structure of the present invention includes a pipe stack formed by stacking a large number of pipes on the back embankment on the ground side of a support that supports the roof, and this pipe stack. A layer of sand cushion material is provided on top.
［作用］
本発明の衝撃力緩衝構造は、設計時の想定を大
幅に越える巨大な岩石の落下等による衝撃力が、
支持体の背面盛土上に設けられた管積層とサンド
クツシヨン材層からなる衝撃力緩衝構造によつて
一旦緩衝され、この後屋根上に加えられる。[Function] The impact force buffering structure of the present invention can absorb the impact force caused by the falling of a huge rock, etc., which greatly exceeds the expectations at the time of design.
The impact force is temporarily buffered by an impact force buffering structure consisting of a pipe laminate and a sand cushion layer provided on the back embankment of the support, and then added to the roof.
［実施例］
以下、本発明の実施例を添付図面を参照して説
明する。[Example] Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.
第１図および第２図は本発明の第１実施例であ
り、この例ではコンクリート製シエツドの背面盛
土上に衝撃力緩衝構造を備えたものを示してお
り、、複数の主桁１を道路又は軌道長手方向に向
う横締用PC鋼材２により一体に緊結して屋根３
を形成し、この屋根３の周縁上部に囲いブロツク
４をアンカー部材５によつて固設し、前記屋根３
の道路又は軌道幅方向の両側を支持体である柱６
および壁７上に載置し縦締用鋼材８によつて剛結
一体化してシエツドを構成している。 Figures 1 and 2 show a first embodiment of the present invention, and this example shows an impact-absorbing structure on the back embankment of a concrete sill. Or, the roof 3 can be tied together by horizontal tightening PC steel members 2 facing in the longitudinal direction of the track.
An enclosing block 4 is fixed to the upper peripheral edge of the roof 3 by an anchor member 5, and the roof 3 is
Pillars 6 which are supports on both sides in the width direction of the road or track
It is placed on the wall 7 and rigidly integrated with the vertically fastening steel 8 to form a shed.
衝撃力緩衝構造は前記壁７の背面盛土９上に多
数の管１０を敷き並べかつ積み重ねて管積層Ａを
形成し、この管積層Ａ上にサンドクツシヨン材層
Ｂを設けると共に屋根３上にサンドクツシヨン材
層Ｃを設けてなり、サンドクツシヨン材層Ｂ，Ｃ
は砂、砕砂または山土等のサンドクツシヨン材１
１を敷いて形成されており、管積層Ａはコンクリ
ート製又はビニール製等の管１０を積み重ねて形
成している。この管１０は単に敷き並べかつ積み
重ねるだけでもよいが、必要に応じて緊結金具
（図示せず）を用いて管１０を相互に緊結しても
よい。この場合、第１実施例では背面盛土９上に
サンドクツシヨン材層B′を形成し、この上に管
積層Ａを設け、この上にサンドクツシヨン材層Ｂ
を形成しているが、第３図に示す本発明の第２実
施例のように背面盛土９上に管積層Ａを設け、こ
の上にサンドクツシヨン材層Ｂを設けるようにし
てもよい。なお、第１、第２実施例においてはサ
ンドクツシヨン材層Ｂ，Ｃの上面には地山から谷
又は海に向つて下方に傾斜する傾斜面を形成して
いる。 The impact force buffering structure is constructed by arranging and stacking a large number of pipes 10 on the back embankment 9 of the wall 7 to form a pipe laminate A, and providing a sand cushion material layer B on the pipe laminate A. A sand cushion material layer C is provided, and the sand cushion material layers B and C are provided.
Sand cushion material 1 such as sand, crushed sand or mountain soil
1, and the pipe stack A is formed by stacking pipes 10 made of concrete, vinyl, or the like. The tubes 10 may be simply laid out and stacked, but if necessary, the tubes 10 may be tightened together using fastening fittings (not shown). In this case, in the first embodiment, a sand cushion material layer B' is formed on the back embankment 9, a pipe laminate A is provided on top of this, and a sand cushion material layer B' is provided on top of this.
However, as in the second embodiment of the present invention shown in FIG. 3, a pipe laminate A may be provided on the back embankment 9, and a sand cushion material layer B may be provided thereon. In the first and second embodiments, the upper surfaces of the sand cushion material layers B and C are formed with slopes that slope downward from the mountain to the valley or the sea.
第４図は本発明の第３実施例であり、この例で
はコンクリート製キーパーの背面盛土上に衝撃力
緩衝構造を備えたものを示し、第１実施例と同一
部分に同一符号を付し同一箇所の説明を省略して
詳述すると、複数の壁体１Ａを道路又は軌道長手
方向に向う横締用PC鋼材２により一体に緊結し
て屋根３Ａを形成し、この屋根３Ａの周縁上部に
囲いブロツク４をアンカー部材５によつて固設
し、前記屋根３Ａの地山側を柱６Ａおよび下部工
７Ａ上に斜めに載置し縦締用鋼材８により定着一
体化してキーパーを構成している。 FIG. 4 shows a third embodiment of the present invention, and this example shows a concrete keeper equipped with an impact-absorbing structure on the back embankment. To explain in detail without omitting the explanation of the parts, a roof 3A is formed by binding together a plurality of walls 1A by horizontal tightening PC steel members 2 facing in the longitudinal direction of the road or track, and a fence is placed on the upper part of the periphery of the roof 3A. The block 4 is fixed by an anchor member 5, the ground side of the roof 3A is placed obliquely on the pillar 6A and the substructure 7A, and is fixed and integrated with the vertical tightening steel 8 to form a keeper.
衝撃力緩衝構造は下部工７Ａの地山側の背面盛
土９上に管積層Ａを設け、この管積層Ａ上にサン
ドクツシヨン材層Ｂを設けると共に屋根３Ａ上に
サンドクツシヨン材層Ｃを設けてなるものであ
る。 In the impact force buffering structure, a pipe laminate A is provided on the back embankment 9 on the ground side of the substructure 7A, a sand cushion material layer B is provided on the pipe laminate A, and a sand cushion material layer C is provided on the roof 3A. This is what happens.
第５図は本発明の第４実施例であり、第３実施
例と同一部分に同一符号を付し同一箇所の説明を
省略して詳述すると、この例ではキーパーの屋根
３Ａを下部工７Ａに定着すると共に地山の壁部に
アンカー１２によつて定着したものを示し、衝撃
力緩衝構造は第３実施例と同一である。 FIG. 5 shows a fourth embodiment of the present invention, and will be described in detail by assigning the same reference numerals to the same parts as in the third embodiment and omitting explanations of the same parts. In this example, the keeper's roof 3A is replaced by the substructure 7A. The impact force buffering structure is the same as that of the third embodiment.
このように上記各実施例においては、保護構造
物の背面盛土９上に管積層Ａを設け、この管積層
Ａ上にサンドクツシヨン材層Ｂを設け、屋根３，
３Ａ上にはサンドクツシヨン材層Ｃを設けるもの
であるため、落石等の衝撃力は先ず背面盛土９上
の管積層Ａとサンドクツシヨン材層Ｂからなる衝
撃力緩衝構造によつて緩衝、分散され、この後屋
根３，３Ａ上のサンドクツシヨン材層Ｃによつて
緩衝される。この場合、第１、第２実施例におい
ては衝撃力緩衝構造上面の傾斜が安息角程度であ
る場合落石等は谷又は海に向つて落下する。この
ため、屋根３，３Ａ上には背面盛土９上にて一旦
緩衝された小さな衝撃が加わるものであるから、
保護構造物の破壊を防止できると共に屋根３，３
Ａ上に設けられるサンドクツシヨン材層Ｃの厚さ
を小さくすることができ死荷重を大巾に減少する
ことができる。また、背面盛土９上に衝撃力緩衝
構造を有しているため、巨岩等の落下時において
もこの衝撃力は多数の管１０によつて緩衝、分散
して背面盛土９の破壊を防止し、壁７や下部工７
Ａを押し倒して屋根３，３Ａが破壊されるような
事故を防止することができる。 In each of the above embodiments, the pipe laminate A is provided on the back embankment 9 of the protective structure, the sand cushion material layer B is provided on the pipe laminate A, and the roof 3,
Since the sand cushion material layer C is provided on 3A, the impact force from falling rocks etc. is first buffered by the impact force buffering structure consisting of the pipe lamination A and the sand cushion material layer B on the back embankment 9. It is dispersed and is then cushioned by a layer of sand cushion material C on the roof 3, 3A. In this case, in the first and second embodiments, if the slope of the top surface of the impact force buffering structure is about the angle of repose, falling rocks, etc. will fall toward the valley or the sea. For this reason, a small impact is applied to the roofs 3 and 3A, which is once buffered by the back embankment 9.
Destruction of the protective structure can be prevented and the roof 3,3
The thickness of the sand cushion material layer C provided on A can be reduced, and the dead load can be greatly reduced. In addition, since the back embankment 9 has an impact force buffering structure, even when a huge rock or the like falls, this impact force is buffered and dispersed by the many pipes 10 to prevent the back embankment 9 from being destroyed. Wall 7 and substructure 7
It is possible to prevent an accident in which roofs 3 and 3A are destroyed by pushing down A.
なお本発明は上記実施例に限定されるものでは
なく本発明の要旨の範囲内において種々の変形実
施が可能である。例えば保護構造物は各種タイプ
に適用可能であり、またサンドクツシヨン材層の
厚み、あるいは管積層を構成する管の材質、数等
は適宜選定すればよい。 Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, the protective structure can be applied to various types, and the thickness of the sand cushion layer, the material and number of tubes constituting the tube stack, etc. may be selected as appropriate.
［発明の効果］
本発明は屋根を支持する支持体の地山側背面盛
土上に多数の管を積み重ねてなる管積層を設け、
この管積層上にサンドクツシヨン材層を設けてな
り、巨大な岩石の落下等による衝撃力の緩衝効果
を得ることのできる保護構造物の衝撃力緩衝構造
を提供できる。[Effects of the Invention] The present invention provides a pipe stack formed by stacking a large number of pipes on the back embankment on the ground side of the support that supports the roof,
By providing a layer of sand cushion material on this pipe stack, it is possible to provide an impact force buffering structure for a protective structure that can buffer the impact force caused by a falling huge rock or the like.
第１図および第２図は本発明の第１実施例を示
し、第１図は一部切欠斜視図、第２図は断面図、
第３図は本発明の第２実施例を示す断面図、第４
図は本発明の第３実施例を示す断面図、第５図は
本発明の第４実施例を示す断面図である。
３，３Ａ……屋根、６，６Ａ……柱（支持体）、
７……壁（支持体）、７Ａ……下部工（支持体）、
Ａ……管積層、Ｂ，Ｃ……サンドクツシヨン材
層。
1 and 2 show a first embodiment of the present invention, FIG. 1 is a partially cutaway perspective view, FIG. 2 is a sectional view,
FIG. 3 is a sectional view showing the second embodiment of the present invention, and FIG.
The figure is a sectional view showing a third embodiment of the invention, and FIG. 5 is a sectional view showing a fourth embodiment of the invention. 3,3A...Roof, 6,6A...Column (support body),
7...Wall (support), 7A...Substructure (support),
A... Pipe laminate, B, C... Sand cushion material layer.
Claims (1)
屋根を支持体により支持してなる保護構造物にお
いて、前記支持体の地山側背面盛土上に多数の管
を積み重ねてなる管積層を設け、この管積層上に
サンドクツシヨン材層を設けたことを特徴とする
保護構造物の衝撃力緩衝構造。1. In a protective structure in which a roof covering at least a part of a road or railway track is supported by a support, a pipe stack consisting of a large number of pipes is stacked on the back embankment on the ground side of the support, and this pipe An impact force buffering structure for a protective structure characterized by providing a sand cushion material layer on a laminated layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29358289A JPH03156006A (en) | 1989-11-10 | 1989-11-10 | Buffer structure against impulse of protective construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29358289A JPH03156006A (en) | 1989-11-10 | 1989-11-10 | Buffer structure against impulse of protective construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03156006A JPH03156006A (en) | 1991-07-04 |
| JPH0567724B2 true JPH0567724B2 (en) | 1993-09-27 |
Family
ID=17796598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29358289A Granted JPH03156006A (en) | 1989-11-10 | 1989-11-10 | Buffer structure against impulse of protective construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03156006A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267391A (en) * | 2020-10-27 | 2021-01-26 | 西南交通大学 | A two-stage energy-consuming shed tunnel support structure connected by bucket arch principle and its design method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101033862B1 (en) * | 2009-04-21 | 2011-05-13 | 김성진 | Construction method of eco-tourism road of cliff rock part |
| CN110359381B (en) * | 2019-07-25 | 2021-08-17 | 西南交通大学 | Flexible net and buffer cushion combined self-cleaning shed system and its design method |
-
1989
- 1989-11-10 JP JP29358289A patent/JPH03156006A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267391A (en) * | 2020-10-27 | 2021-01-26 | 西南交通大学 | A two-stage energy-consuming shed tunnel support structure connected by bucket arch principle and its design method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03156006A (en) | 1991-07-04 |
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