JPH09132918A - Mat for caisson sliding prevention, and mat installing structure on caisson bottom part - Google Patents
Mat for caisson sliding prevention, and mat installing structure on caisson bottom partInfo
- Publication number
- JPH09132918A JPH09132918A JP7290811A JP29081195A JPH09132918A JP H09132918 A JPH09132918 A JP H09132918A JP 7290811 A JP7290811 A JP 7290811A JP 29081195 A JP29081195 A JP 29081195A JP H09132918 A JPH09132918 A JP H09132918A
- Authority
- JP
- Japan
- Prior art keywords
- mat
- caisson
- rubber
- locking
- bottom part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- Revetment (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、ケーソン滑動防止
用マットおよびそのマットのケーソン底部への取付構造
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caisson anti-slip mat and a structure for mounting the mat on the bottom of the caisson.
【0002】[0002]
【従来の技術】防波堤、岸壁、護壁などの堤体をケーソ
ンを用いて施工する場合、図5に示すように、地盤の上
に捨石をして設けたマウンド11とその上に置くケーソ
ン12との間の滑動抵抗を高めるために、アスファルト
マット13が多く用いられている。アスファルトマット
13は、ガラスクロスや金網などの補強材を芯材として
使用して、アスファルトマスチックを打設してマット状
に成形したものであり、これに代わる安価で性能のよい
マット材が開発されなかったため、多くの施工実績があ
る。2. Description of the Related Art When constructing breakwaters such as breakwaters, quays and barriers using caisson, as shown in FIG. 5, a mound 11 is provided by rubble stones on the ground and a caisson 12 placed on the mound. Asphalt mat 13 is often used to increase the sliding resistance between the asphalt mats. The asphalt mat 13 is formed by placing an asphalt mastic into a mat shape using a reinforcing material such as a glass cloth or a wire mesh as a core material, and an inexpensive and high-performance mat material has been developed to replace this. Since it was not there, there are many construction results.
【0003】ところが、アスファルトマットは、敷設し
た後にケーソンの荷重により捨石の凸部が食い込むた
め、ケーソンの据え付け直しをしたり、移設をした場
合、マットに捨石が食い込んだままとなり、再度据え付
ける場合の障害となる。However, when the asphalt mat is laid, the protrusions of the rubble bite under the load of the caisson. Therefore, when the caisson is re-installed or relocated, the rubble remains in the mat and remains installed. It becomes an obstacle.
【0004】そこで、アスファルトマットに代えてゴム
製のマットを使用してマットへの捨石の食い込みを防止
しようとする試みが行われており、例えば、以下に示す
ものが知られている。Therefore, attempts have been made to prevent a rubble from biting into the mat by using a rubber mat instead of the asphalt mat. For example, the following are known.
【0005】実公昭59−35642号公報には、図6
に示すように、下面に溝14を有するゴム製の単位摩擦
部材15の成形時に補強部材16と一体に埋設した取付
部材17に基礎ボルト18を螺合固定し、その下面が露
出した状態でコンクリート躯体19へ埋設したことを特
徴とする重力式構造物における摩擦部材が開示されてい
る。(以下「従来技術1」という) また、本出願人の出願に係る特願平6−190262号
公報には、図7に示すように、表面に突起を有する異形
鉄筋20の上半分をコンクリートケーソンの底部21に
埋設し、異形鉄筋20の下半分をゴムマット22に設け
た孔23に挿入し、接着剤24によりゴムマット22に
固定したことを特徴とするケーソン底部へのマット取付
構造が開示されている。(以下「従来技術2」という) さらに、特公平5−19617号公報には、図8に示す
ように、ケーソンラバー25に拡大部を有する貫通孔2
6を設け、ケーソンラバー25の下側からボルト27を
挿入して、ボルト27先端をケーソンラバー25上面に
突出させてケーソン底部に取り付けることを特徴とする
コンクリートケーソンの製造方法が開示されている。
(以下「従来技術3」という)In Japanese Utility Model Publication No. 59-35642, FIG.
As shown in FIG. 3, the base bolt 18 is screwed and fixed to the mounting member 17 embedded integrally with the reinforcing member 16 when the rubber unit friction member 15 having the groove 14 on the lower surface is molded, and the concrete surface is exposed with the lower surface exposed. Disclosed is a friction member in a gravity-type structure, which is embedded in a frame 19. Further, in Japanese Patent Application No. 6-190262 filed by the applicant of the present invention, as shown in FIG. 7, the upper half of the deformed rebar 20 having protrusions on the surface is a concrete caisson. A bottom part of the deformed rebar 20 is inserted into a hole 23 provided in a rubber mat 22 and fixed to the rubber mat 22 with an adhesive 24. A mat mounting structure for a caisson bottom part is disclosed. There is. (Hereinafter, referred to as "prior art 2") Further, in Japanese Patent Publication No. 5-19617, as shown in FIG. 8, a through hole 2 having an enlarged portion in a caisson rubber 25 is provided.
6 is provided, the bolt 27 is inserted from the lower side of the caisson rubber 25, and the tip of the bolt 27 is projected to the upper surface of the caisson rubber 25 to be attached to the bottom of the caisson.
(Hereafter referred to as "Prior Art 3")
【0006】[0006]
【発明が解決しようとする課題】しかし、従来技術1の
構造は、単位摩擦部材15の下面に溝14を形成し、補
強部材16と取付部材17を単位摩擦部材15の成形時
に一体に埋設するため、金型構造が複雑になり、作業性
が悪くなる。その結果、製造コストも高くなる。また、
従来技術2の構造は、低コストでしかも煩雑な取付作業
を必要とせず、安全な作業方法をとりうるという利点は
あるが、ゴムマット22の孔23にプライマー処理を施
さねばならず、また接着剤を適正な条件で保存管理しな
ければならないという問題や雨天時の施工が困難である
という欠点がある。However, in the structure of the prior art 1, the groove 14 is formed in the lower surface of the unit friction member 15, and the reinforcing member 16 and the mounting member 17 are integrally embedded when the unit friction member 15 is molded. Therefore, the mold structure becomes complicated and the workability deteriorates. As a result, the manufacturing cost also increases. Also,
The structure of the prior art 2 has the advantages of being low in cost, requiring no complicated mounting work, and being able to adopt a safe work method, but the holes 23 of the rubber mat 22 must be treated with a primer, and an adhesive Has the problem that it must be stored and managed under appropriate conditions, and that it is difficult to construct in rainy weather.
【0007】さらに、従来技術3の構造は、ケーソンラ
バー25にボルト27を挿入するためには、一旦上方か
らボルト27を挿入したのちケーソンラバー25を反転
させるか、またはケーソンラバー25を浮かして固定し
た状態で下側からボルト27を挿入する必要があり、い
ずれにしても、煩雑で危険な作業を余儀なくされる。本
発明は従来の技術の有するこのような問題点に鑑みてな
されたものであって、その目的は、低コストで管理が容
易で、しかも煩雑な取付作業を必要とせず、晴雨に関係
なくバラツキの少ない取付施工ができるケーソン滑動防
止用マットおよびそのマットのケーソン底部への取付構
造を提供することにある。Further, in the structure of the prior art 3, in order to insert the bolt 27 into the caisson rubber 25, the bolt 27 is once inserted and then the caisson rubber 25 is inverted, or the caisson rubber 25 is floated and fixed. It is necessary to insert the bolt 27 from the lower side in this state, and in any case, complicated and dangerous work is inevitable. The present invention has been made in view of the above problems of the prior art, and its object is low cost, easy management, and no need for complicated mounting work. (EN) Provided is a caisson anti-slip mat which can be installed with a small number of installations, and a structure for mounting the mat on the bottom of the caisson.
【0008】[0008]
【課題を解決するための手段】上記目的を達成するため
に本発明は、ケーソン底部に取り付けられ、マウンド上
に据え付けられたケーソンの滑動を防止する板状マット
で、該マットの片面に、係止凸部材をマット面から上方
に突出させて係止する係止凹部材が、該凹部材の内面を
マット面に開口して埋設されていることを特徴とするケ
ーソン滑動防止用マットを第一の発明とする。In order to achieve the above object, the present invention is a plate-like mat which is attached to the bottom of a caisson and which prevents the caisson mounted on a mound from slipping. First, there is provided a caisson anti-skid mat, characterized in that a locking concave member for projecting and locking the stop convex member upward is embedded by opening the inner surface of the concave member into the mat surface. Invention.
【0009】マットとしては、ゴムマット、補強材入り
アスファルトマットおよび樹脂マット等が使用できる
が、捨石の食い込みがなく、ヘタリが少ないことより、
ゴムマットが好適に用いられる。本発明のマットは、再
生ゴム等の粉末状ゴムを加硫剤、充填剤等の配合剤とと
もに、加熱・加圧して平板状に形成したものであり、捨
石マウンドの凹凸に応じて変形し、捨石の食い込みをな
くすため、硬度(JIS−A)60°〜75°のものが
好ましく用いられる。As the mat, a rubber mat, an asphalt mat containing a reinforcing material, a resin mat, or the like can be used, but since there is no bite of rubble stone and little settling,
A rubber mat is preferably used. The mat of the present invention is formed by heating and pressurizing powder rubber such as recycled rubber with a compounding agent such as a vulcanizing agent and a filler into a flat plate shape, which is deformed according to the unevenness of the rubble mound, A hardness (JIS-A) of 60 ° to 75 ° is preferably used in order to prevent biting of rubble stones.
【0010】係止凹部材は、内面にめねじや係止溝を有
するものであればよく、金属製ナットが強度も大きく、
安価であり、好ましく用いられる。これら係止凹部材
は、平板状ゴムマットの加硫成形と同時に接着一体化し
て、ゴムマット中に埋設される。Any material may be used as the locking recess material as long as it has an internal thread and a locking groove on its inner surface, and the metal nut has high strength.
It is inexpensive and is preferably used. These locking recess members are embedded in the rubber mat by being bonded and integrated simultaneously with the vulcanization molding of the flat rubber mat.
【0011】係止凸部材は、係止凹部材と係合するおね
じや突起を有するものであればよく、金属製ボルトや突
起付棒材が好ましく用いられる。The locking convex member may be any member having a male screw or a projection that engages with the locking concave member, and a metal bolt or a bar member with a projection is preferably used.
【0012】上記第一の発明において、係止凸部材が頭
付きボルトで、係止凹部材が上記頭付きボルトと螺合す
るナットであることを特徴とするケーソン滑動防止用マ
ットを第二の発明とする。In the first invention, the caisson anti-skid mat according to the second aspect is characterized in that the locking convex member is a headed bolt and the locking concave member is a nut screwed with the headed bolt. Invented.
【0013】係止凸部材が頭付きボルトであるのは、コ
ンクリートケーソンの場合には、打設したコンクリート
に頭部が埋設され、抜け抵抗が大きくなり、鋼製ケーソ
ンの場合には、底板(鋼板)に直接固定できるからであ
る。六角頭付きボルトが市販で安価に入手でき、特に好
ましい。頭付きボルトと螺合するナットは市販の六角ナ
ットでよいが、特にゴムマット成形時、内面にゴムが流
入しにくく、且つ、ゴムマットに埋設時、接着面積が大
きくできる点より、袋ナットが好ましく用いられる。In the case of a concrete caisson, the head is embedded in the cast concrete to increase the pull-out resistance, and in the case of a steel caisson, the bottom plate ( This is because it can be fixed directly to the steel plate). Hexagon head bolts are particularly preferable because they are commercially available at low cost. A commercially available hexagonal nut may be used as the nut to be screwed with the headed bolt, but a cap nut is preferably used because rubber does not easily flow into the inner surface during molding of the rubber mat and the bonding area can be increased when embedded in the rubber mat. To be
【0014】また、内面を開口した係止凹部材が片面に
埋設されているマットを複数枚敷きつめ、該係止凹部材
により係止凸部材をマット面から上方に突出させて係止
し、係止凸部材のマット面から上方に突出した部分をケ
ーソン底部に連結してなるケーソン底部へのマット取付
構造を第三の発明とする。Further, a plurality of mats each having a locking recess material having an inner surface opened and embedded in one surface are laid, and the locking projection member is caused to project upward from the mat surface and locked by the locking recess material. A third invention is a structure for attaching a mat to a bottom of a caisson, which is formed by connecting a portion of the stop convex member that protrudes upward from the mat surface to the bottom of the caisson.
【0015】[0015]
【発明の実施の形態】以下、本発明の実施例の形態を図
示例とともに説明する。まず、本発明に係るマットの製
造方法を説明すると、図4に示すように、金型下面8に
袋ナット(係止凹部材)2が移動しないための突起9を
設け、該突起9に、外面に接着処理Aを施した、外面が
六角形等の多角形の袋ナット2を嵌合し、該袋ナット2
が埋設されるように天然ゴムを主体とする粉末ゴムに加
硫剤、充填剤を配合したゴム組成物10を型内に充填
し、150℃で加熱・加圧して加硫すると同時に袋ナッ
ト2をゴム組成物10に接着一体化し、約40分経過後
に脱型して内面をマット面に開口した袋ナット2を片面
側に埋設したJIS−A硬度60°〜75°のゴムマッ
トを得ることができる。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. First, the mat manufacturing method according to the present invention will be described. As shown in FIG. 4, a protrusion 9 for preventing the cap nut (locking recess member) 2 from moving is provided on the lower surface 8 of the mold, and the protrusion 9 is A polygonal cap nut 2 having an external surface such as a hexagon, the outer surface of which is subjected to the adhesion treatment A, is fitted to the cap nut 2.
A rubber composition 10 in which a vulcanizing agent and a filler are mixed in a powder rubber mainly composed of natural rubber so as to be embedded in the mold is filled in a mold and vulcanized by heating and pressurizing at 150 ° C. and at the same time a cap nut 2 Is bonded and integrated with the rubber composition 10, and after about 40 minutes, it is demolded to obtain a rubber mat having a JIS-A hardness of 60 ° to 75 ° in which a cap nut 2 having an inner surface opened on the mat surface is embedded on one side. it can.
【0016】次に、ゴムマットのケーソン底部への取付
構造について説明する。図1は、ケーソン滑動防止用ゴ
ムマットをコンクリートケーソン底部に取り付けた状態
を示す模式図である。図1において、1は上記のように
して製造したゴムマットであり、片面側に内面を開口し
て袋ナット2が埋設されている。図2(a)はゴムマッ
ト1片面に袋ナット2を埋設した配置例を示す平面図で
ある。そして、ゴムマット1に埋設した複数の各袋ナッ
ト2に六角ボルト(頭付きボルト)3を螺合して六角ボ
ルト3の頭部をマット面から上方に突出させ、このよう
なゴムマットを複数枚敷きつめて型枠(図示せず)で囲
ってコンクリートを打設し、図1に示すように、六角ボ
ルト3の頭部をコンクリートケーソンの底部4に連結す
る。また、袋ナット2に代わるものとして、図2(c)
に示すような高ナット2aを使用することもできる。Next, the structure for attaching the rubber mat to the bottom of the caisson will be described. FIG. 1 is a schematic view showing a state in which a caisson anti-slip rubber mat is attached to the bottom of a concrete caisson. In FIG. 1, reference numeral 1 denotes a rubber mat manufactured as described above, and a cap nut 2 is embedded in one side of the rubber mat with its inner surface opened. FIG. 2A is a plan view showing an arrangement example in which the cap nut 2 is embedded in one surface of the rubber mat 1. Then, hexagonal bolts (head bolts) 3 are screwed into the respective cap nuts 2 embedded in the rubber mat 1 so that the heads of the hexagon bolts 3 project upward from the mat surface, and a plurality of such rubber mats are spread. Concrete is placed by surrounding it with a mold (not shown), and the head of the hexagon bolt 3 is connected to the bottom 4 of the concrete caisson as shown in FIG. Further, as an alternative to the cap nut 2, as shown in FIG.
It is also possible to use a high nut 2a as shown in FIG.
【0017】また、ケーソンが鋼製の場合、図3に示す
ように、鋼製ケーソンの底部5に設けた貫通孔6に六角
ボルト3を挿通し、さらに適当な厚さのライナー7を介
装し、六角ボルト3と袋ナット2を螺合することによっ
て、ゴムマット1を鋼製ケーソンの底部5に取り付ける
こともできる。When the caisson is made of steel, as shown in FIG. 3, the hexagon bolt 3 is inserted into the through hole 6 provided in the bottom 5 of the steel caisson, and the liner 7 having an appropriate thickness is interposed. Then, the rubber mat 1 can be attached to the bottom portion 5 of the steel caisson by screwing the hexagon bolt 3 and the cap nut 2 together.
【0018】[0018]
【発明の効果】本発明によれば、低コストで管理が容易
で、しかも煩雑な取付作業を必要とせず、晴雨に関係な
くバラツキの少ない取付施工ができるケーソン滑動防止
用マットおよびそのマットのケーソン底部への取付構造
を提供することができる。EFFECTS OF THE INVENTION According to the present invention, a caisson for preventing slippage and a caisson of the mat which can be installed at a low cost, are easy to manage, do not require complicated installation work, and can be installed with little variation regardless of fine rain. A mounting structure to the bottom can be provided.
【図1】本発明のケーソン滑動防止用ゴムマットをコン
クリートケーソンの底部に取り付けた状態を示す模式図
である。FIG. 1 is a schematic view showing a state where a caisson anti-slip rubber mat of the present invention is attached to a bottom portion of a concrete caisson.
【図2】図2(a)は本発明のケーソン滑動防止用ゴム
マットの平面図、図2(b)は図2(a)のB−B矢視
断面図、図2(c)は図2(b)の袋ナット2に代えて
高ナット2aを使用した場合を示す図である。2 (a) is a plan view of a caisson slip-preventing rubber mat of the present invention, FIG. 2 (b) is a sectional view taken along the line BB of FIG. 2 (a), and FIG. 2 (c) is FIG. It is a figure which shows the case where the high nut 2a is used instead of the cap nut 2 of (b).
【図3】本発明のケーソン滑動防止用ゴムマットを鋼製
ケーソンの底部に取り付けた状態を示す断面図である。FIG. 3 is a cross-sectional view showing a state where the caisson anti-slip rubber mat of the present invention is attached to the bottom of a steel caisson.
【図4】本発明のケーソン滑動防止用ゴムマットの製造
方法を説明する図である。FIG. 4 is a diagram illustrating a method for manufacturing a caisson anti-slip rubber mat of the present invention.
【図5】ケーソンの使用状態の一例を示す断面図であ
る。FIG. 5 is a sectional view showing an example of a usage state of a caisson.
【図6】従来のケーソン底部へのゴムマットの取付構造
の一例を示す断面図である。FIG. 6 is a cross-sectional view showing an example of a conventional structure for mounting a rubber mat on the bottom of a caisson.
【図7】従来のケーソン底部へのゴムマットの取付構造
の別の例を示す断面図である。FIG. 7 is a cross-sectional view showing another example of a conventional structure for mounting a rubber mat on the bottom of a caisson.
【図8】従来のケーソン底部へのゴムマットの取付構造
のさらに別の例を示す断面図である。FIG. 8 is a cross-sectional view showing still another example of a conventional structure for mounting a rubber mat on the bottom of a caisson.
1…ゴムマット 2…袋ナット 2a…高ナット 3…六角ボルト(頭付きボルト) 4…コンクリートケーソンの底部 5…鋼製ケーソンの底部 6…貫通孔 7…ライナー 8…金型下面 9…突起 10…ゴム組成物 A…接着処理 DESCRIPTION OF SYMBOLS 1 ... Rubber mat 2 ... Cap nut 2a ... High nut 3 ... Hexagon bolt (bolt with head) 4 ... Bottom of concrete caisson 5 ... Bottom of steel caisson 6 ... Through hole 7 ... Liner 8 ... Mold lower surface 9 ... Protrusion 10 ... Rubber composition A ... Adhesion treatment
Claims (3)
上に据え付けられたケーソンの滑動を防止する板状マッ
トで、該マットの片面に、係止凸部材をマット面から上
方に突出させて係止する係止凹部材が、該凹部材の内面
をマット面に開口して埋設されていることを特徴とする
ケーソン滑動防止用マット。1. A plate-like mat which is attached to the bottom of a caisson and which prevents the caisson installed on a mound from slipping, and a locking convex member is projected on one side of the mat and projects upward from the mat surface. A caisson slip preventing mat, wherein the locking recess material is embedded by opening the inner surface of the recess material into the mat surface.
材が上記頭付きボルトと螺合するナットであることを特
徴とする請求項1記載のケーソン滑動防止用マット。2. The caisson slip prevention mat according to claim 1, wherein the locking convex member is a head bolt, and the locking recess member is a nut screwed with the head bolt.
されているマットを複数枚敷きつめ、該係止凹部材によ
り係止凸部材をマット面から上方に突出させて係止し、
係止凸部材のマット面から上方に突出した部分をケーソ
ン底部に連結してなるケーソン底部へのマット取付構
造。3. A plurality of mats, each of which has a locking recess material having an inner surface opened and which is embedded in one surface, are laid, and the locking projection member locks the locking projection member by projecting upward from the mat surface.
A structure for attaching a mat to the bottom of a caisson, which is formed by connecting the portion of the locking convex member that protrudes upward from the mat surface to the bottom of the caisson.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7290811A JPH09132918A (en) | 1995-11-09 | 1995-11-09 | Mat for caisson sliding prevention, and mat installing structure on caisson bottom part |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7290811A JPH09132918A (en) | 1995-11-09 | 1995-11-09 | Mat for caisson sliding prevention, and mat installing structure on caisson bottom part |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09132918A true JPH09132918A (en) | 1997-05-20 |
Family
ID=17760797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7290811A Pending JPH09132918A (en) | 1995-11-09 | 1995-11-09 | Mat for caisson sliding prevention, and mat installing structure on caisson bottom part |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH09132918A (en) |
-
1995
- 1995-11-09 JP JP7290811A patent/JPH09132918A/en active Pending
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