JP4527041B2 - Joint structure of structure and its construction method - Google Patents

Joint structure of structure and its construction method Download PDF

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JP4527041B2
JP4527041B2 JP2005291176A JP2005291176A JP4527041B2 JP 4527041 B2 JP4527041 B2 JP 4527041B2 JP 2005291176 A JP2005291176 A JP 2005291176A JP 2005291176 A JP2005291176 A JP 2005291176A JP 4527041 B2 JP4527041 B2 JP 4527041B2
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support member
joint
fixed support
water
movable support
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JP2007100376A (en
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健二 伊坂
多克 和木
政則 中垣
光晴 林
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西武ポリマ化成株式会社
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この発明は、構造物の目地構造およびその施工方法に関し、ケーソンを並べて構築する護岸壁や管理型廃棄物最終処分場の護岸壁などの構造物の目地の止水性を高めることができるようにしたものである。   The present invention relates to a joint structure of a structure and a construction method thereof, and is capable of increasing the water-stopping property of a joint such as a revetment wall constructed side by side with a caisson or a revetment wall of a management-type waste final disposal site. Is.

護岸壁などの構造物の１つである管理型廃棄物最終処分場では、護岸壁を構築し、その内側に廃棄物を投入して埋め立てることが行われている。   At a managed waste final disposal site, which is one of the structures such as a revetment wall, a revetment wall is constructed, and waste is put into the landfill to refill it.

従来、このような護岸壁は、通常、ケーソンを並べて構築されており、廃棄物や汚水などの流出を防止するため、ケーソン間の目地を遮水する必要があり、種々の目地構造が提案されている。   Conventionally, such a revetment wall is usually constructed with caisons side by side, and in order to prevent the outflow of waste and sewage, it is necessary to shield the joints between the caissons, and various joint structures have been proposed. ing.

これまでの目地構造の一例は、図１０に示すように、ケーソン１、１の対向する目地２間に、中空の大円筒状目地材３ａと中空小円筒状の加圧流体用目地材３ｂとを組み合せた目地材３，３を間隔をあけて配置し、大円筒状目地材３ａ、３ａの内部に砂、アスファルト、モルタルなどの充填材４を注入充填して膨らませた後、加圧流体用目地材３ｂ、３ｂに水などの流体５を加圧注入して目地材３、３をケーソン１、１の対向する壁面に圧着させ、これら目地材３、３の間の目地２内にアスファルトマスチックなどの充填材を注入充填することにより不透水層６を形成することで遮水するようにしている（特許文献１など参照）。
特開平０４−３８３２４号公報 As shown in FIG. 10, an example of the conventional joint structure includes a hollow large cylindrical joint material 3 a and a hollow small cylindrical joint material 3 b for pressurized fluid between the joints 2 facing each other of the caissons 1 and 1. The joint materials 3 and 3 combined with each other are arranged at intervals, and the large cylindrical joint materials 3a and 3a are filled with a filler 4 such as sand, asphalt and mortar, and then inflated. A fluid 5 such as water is pressurized and injected into the joint materials 3b and 3b, and the joint materials 3 and 3 are pressed against the opposing wall surfaces of the caissons 1 and 1, and the asphalt mastic is placed in the joint 2 between the joint materials 3 and 3. Water impermeable is formed by forming a water-impermeable layer 6 by injecting and filling a filler such as (see Patent Document 1).
Japanese Patent Laid-Open No. 04-38324

ところが、このようなケーソン用の目地構造では、通常想定されている地震などが発生しても目地材３、３間に充填したアスファルトマスチックを充填した不透水層６がケーソン１、１間の目地２の開きなどに対応して遮水状態を維持することができるものの、大地震などの急激なケーソンの動きに対しては、アスファルトマスチックなどの充填材が一時的に追従できなくなるおそれがある。   However, in such a caisson joint structure, an impermeable layer 6 filled with asphalt mastic filled between the joint materials 3 and 3 is formed between the caissons 1 and 1 even if an earthquake that is normally assumed occurs. Although the water-blocking state can be maintained in response to the opening of 2 or the like, there is a possibility that a filler such as asphalt mastic cannot temporarily follow a sudden caisson movement such as a large earthquake.

この発明は、上記従来技術の問題点に鑑みてなされたもので、地震時などの急激な動きに対しても対応して遮水状態を維持することができる構造物の目地構造およびその施工方法を提供しようとするものである。   The present invention has been made in view of the above-described problems of the prior art, and a joint structure for a structure capable of maintaining a water-impervious state in response to a sudden movement such as during an earthquake, and a construction method thereof. Is to provide.

かかる従来技術の課題を解決するこの発明の請求項１記載の構造物の目地構造は、目地を挟んで対向する構造物間の目地構造であって、前記それぞれの構造物に取り付けられて前記目地の間隔方向で対向する固定支持部材と、これら固定支持部材を挟む両側に跨って配置されるとともに、前記固定支持部材を挟んで間隔が保持された移動支持部材と、前記固定支持部材と前記移動支持部材とのいずれか一方に取り付けられ、いずれか他方に圧着されてシールする止水部材とを備えることを特徴とするものである。   The joint structure of the structure according to claim 1 of the present invention for solving the problems of the prior art is a joint structure between structures facing each other with the joint interposed therebetween, and is attached to each of the structures to form the joint. Fixed support members that are opposed to each other in the spacing direction, a movable support member that is disposed across both sides of the fixed support member, and that holds the gap across the fixed support member, and the fixed support member and the movement It is provided with the water stop member attached to either one of a support member and being crimped | bonded to either one and sealing.

この構造物の目地構造によれば、目地を挟んで対向するそれぞれの構造物に目地の間隔方向で対向する固定支持部材を取り付け、これら固定支持部材を挟む両側に跨って配置されるとともに、固定支持部材を挟んで間隔が保持された移動支持部材を設け、これら固定支持部材と移動支持部材とのいずれか一方に止水部材を取り付けて、いずれか他方に圧着してシールするようにしており、地震時などの急激な固定支持部材の変位に対して移動支持部材を対応させて変位させることができ、これらの変位が生じても止水部材の圧着力を保持でき、遮水性を確保できるようにしている。   According to the joint structure of this structure, a fixed support member that is opposed to each other in the joint spacing direction is attached to each structure that is opposed to the joint, and the fixed support member is disposed across both sides of the fixed support member and fixed. A movable support member is provided with a gap between the support members, a water stop member is attached to one of the fixed support member and the movable support member, and the other member is pressure-bonded and sealed. The movable support member can be displaced in response to a sudden displacement of the fixed support member during an earthquake, etc., and even if these displacements occur, the pressure-bonding force of the water-stopping member can be maintained, and water shielding can be secured. I am doing so.

また、この発明の請求項２記載の構造物の目地構造は、請求項１記載の構成に加え、前記移動支持部材の間隔を調整可能に構成したことを特徴とするものである。   The joint structure of the structure according to claim 2 of the present invention is characterized in that, in addition to the structure of claim 1, the distance between the movable support members is adjustable.

この構造物の目地構造によれば、前記移動支持部材の間隔を調整可能に構成しており、移動支持部材の間隔を調整することで止水部材の圧着力を変えることができ、遮水性能を調整できるとともに、圧着が生じないようにすることで簡単に施工できるようになる。   According to the joint structure of this structure, the distance between the moving support members can be adjusted, and the pressure-bonding force of the water stop member can be changed by adjusting the distance between the moving support members, and the water shielding performance. Can be adjusted, and can be easily constructed by preventing crimping.

さらに、この発明の請求項３記載の構造物の目地構造は、請求項１または２記載の構成に加え、前記移動支持部材を、長手方向に分割し、連結して構成したことを特徴とするものである。   Furthermore, the joint structure of the structure according to claim 3 of the present invention is characterized in that, in addition to the structure according to claim 1 or 2, the movable support member is divided and connected in the longitudinal direction. Is.

この構造物の目地構造によれば、前記移動支持部材を、長手方向に分割し、連結して構成するようにしており、運搬性や施工性を向上でき、現地で組立ながら施工できるようになる。   According to the joint structure of this structure, the moving support member is divided and connected in the longitudinal direction to improve transportability and workability, and can be constructed while being assembled on site. .

また、この発明の請求項４記載の構造物の目地構造は、請求項１〜３のいずれかに記載の構成に加え、前記固定支持部材および前記移動支持部材を、前記目地に隣接して形成した凹部に設けたことを特徴とするものである。   According to a fourth aspect of the present invention, in addition to the structure according to any one of the first to third aspects, the fixed support member and the movable support member are formed adjacent to the joint. It is characterized by being provided in the recessed portion.

この構造物の目地構造によれば、前記固定支持部材および前記移動支持部材を、前記目地に隣接して形成した凹部に設けるようにしており、構造物の壁面から突き出す部分をなくし、これまでと同様の外観形状にすることができるようになる。   According to the joint structure of this structure, the fixed support member and the movable support member are provided in the recessed portion formed adjacent to the joint, and the portion protruding from the wall surface of the structure is eliminated. A similar external shape can be obtained.

さらに、この発明の請求項５記載の構造物の目地構造は、請求項１〜４のいずれかに記載の構成に加え、前記固定支持部材と前記移動支持部材とのいずれか一方に、前記止水部材の抜けを防止する突起部を設けたことを特徴とするものである。   Furthermore, the joint structure of the structure according to claim 5 of the present invention includes, in addition to the structure according to any one of claims 1 to 4, any one of the fixed support member and the movable support member. A protrusion is provided to prevent the water member from coming off.

この構造物の目地構造によれば、前記固定支持部材と前記移動支持部材とのいずれか一方に、前記止水部材の抜けを防止する突起部を設けており、移動支持部材変形の片利きを防ぎ、止水部材が外れることを防止して、安定した変位追従性、止水性を確保できるようにしている。   According to the joint structure of this structure, a protrusion is provided on one of the fixed support member and the movable support member to prevent the water-stop member from coming off, so This prevents the water-stopping member from coming off and ensures stable displacement follow-up and water-stopping properties.

また、この発明の請求項６記載の構造物の目地構造は、請求項１〜５のいずれかに記載の構成に加え、前記前記固定支持部材および前記移動支持部材に、防錆処理を施したことを特徴とするものである。   Moreover, in addition to the structure in any one of Claims 1-5, the joint structure of the structure of Claim 6 of this invention performed the antirust process to the said fixed support member and the said movement support member It is characterized by this.

この構造物の目地構造によれば、前記前記固定支持部材および前記移動支持部材に、防錆処理を施すようにしており、腐食を防止して耐久性を大幅に向上できるようにしている。 According to the joint structure of this structure, the fixed support member and the movable support member are subjected to a rust prevention treatment to prevent corrosion and greatly improve durability.

さらに、この発明の請求項７記載の構造物の目地の施工方法は、目地を挟んで対向する構造物間を止水する目地を施工するに際し、前記それぞれの構造物に前記目地の間隔方向に対向する固定支持部材を取り付けた後、これら固定支持部材を挟む両側に跨って配置されるとともに、前記固定支持部材を挟んで間隔が保持された移動支持部材を挿入するようにし、前記固定支持部材と前記移動支持部材とのいずれか一方には、いずれか他方に圧着されてシールする止水部材を予め取り付けて施工するようにしたことを特徴とするものである。   Furthermore, in the construction method of the joint of the structure according to claim 7 of the present invention, when constructing the joint that stops the water between the structures facing each other with the joint interposed therebetween, the joint is provided in each of the structures in the interval direction of the joint. After mounting the fixed support members that face each other, the movable support members that are arranged across both sides of the fixed support members and that are spaced apart from each other are inserted, and the fixed support members are inserted. One of the movable support member and the moving support member is provided with a water stop member that is pressure-bonded and sealed to the other in advance.

この構造物の目地の施工方法によれば、目地を挟んで対向するそれぞれの構造物に目地の間隔方向に対向する固定支持部材を取り付けた後、これら固定支持部材を挟む両側に跨って配置されるとともに、固定支持部材を挟んで間隔が保持された移動支持部材を挿入するようにし、これら固定支持部材と移動支持部材とのいずれか一方に、いずれか他方に圧着されてシールする止水部材を予め取り付けて施工するようにしており、いずれかに止水部材を取り付けておき、固定支持部材に２枚の間隔をあけた移動支持部材を挿入することで簡単に施工することができるようになる。   According to the method for constructing joints of the structure, after attaching the fixed support members facing each other in the interval direction of the joints to the respective structures facing each other with the joints interposed therebetween, they are arranged across both sides sandwiching these fixed support members. And a water-stopping member that is inserted into one of the fixed support member and the movable support member, and is sealed by being crimped to the other. So that it can be easily installed by attaching a water-stopping member to one of them and inserting a moving support member with a space between two fixed support members. Become.

また、この発明の請求項８記載の構造物の目地の施工方法は、請求項７記載の構成に加え、前記移動支持部材を挿入後その間隔を調整して前記止水部材の圧着力を調整するようにしたことを特徴とするものである。   According to a eighth aspect of the present invention, in addition to the structure according to the seventh aspect, the structure of the seventh aspect is adjusted, and after the movable support member is inserted, the interval is adjusted to adjust the pressure-bonding force of the water stop member. It is characterized by doing so.

この構造物の目地の施工方法によれば、前記移動支持部材を挿入後その間隔を調整して前記止水部材の圧着力を調整するようにしており、移動支持部材の間隔を調整することで止水部材の圧着力を変えることができ、遮水性能を調整できるとともに、圧着が生じないようにすることで簡単に施工できるようになる。   According to the joint construction method of this structure, after inserting the moving support member, the interval is adjusted to adjust the pressure-bonding force of the water stop member, and by adjusting the interval of the moving support member, The pressure-bonding force of the water-stopping member can be changed, the water shielding performance can be adjusted, and the construction can be easily performed by preventing the pressure-bonding from occurring.

さらに、この発明の請求項９記載の構造物の目地の施工方法は、請求項７または８記載の構成に加え、前記移動支持部材を、長手方向に分割し、挿入しながら連結して組み立てるようにしたことを特徴とするものである。   Furthermore, the construction joint construction method according to claim 9 of the present invention is constructed in such a manner that, in addition to the configuration of claim 7 or 8, the movable support member is divided in the longitudinal direction and connected and assembled. It is characterized by that.

この構造物の目地の施工方法によれば、前記移動支持部材を、長手方向に分割し、挿入しながら連結して組み立てるようにしており、運搬性や施工性を向上でき、現地で組立ながら施工できるようになる。   According to the joint construction method of the structure, the movable support member is divided in the longitudinal direction and connected and assembled while being inserted, so that the transportability and workability can be improved, and the construction is performed while assembling on site. become able to.

また、この発明の請求項１０記載の構造物の目地の施工方法は、請求項７〜９のいずれかに記載の構成に加え、前記移動支持部材に前記止水部材を取り付ける一方、当該止水部材が破損した場合に移動支持部材を引き抜き、止水部材を交換後再挿入して施工するようにしたことを特徴とするものである。   Moreover, in addition to the structure in any one of Claims 7-9, the construction method of the joint of the structure of Claim 10 of this invention attaches the said water stop member to the said movement support member, On the other hand, the said water stop When the member is damaged, the movable support member is pulled out, and the water stop member is replaced and reinserted for construction.

この構造物の目地の施工方法によれば、前記移動支持部材に前記止水部材を取り付ける一方、当該止水部材が破損した場合に移動支持部材を引き抜き、止水部材を交換後再挿入して施工するようにしており、止水部材に破損などが生じても移動支持部材ごと引き抜いて交換でき、再挿入することで簡単に再施工できるようにしている。   According to the construction method of the joint of this structure, the water stop member is attached to the moving support member, while the water stop member is pulled out when the water stop member is damaged, and the water stop member is replaced and reinserted. Even if the waterproofing member is damaged, the movable support member can be pulled out and replaced, and can be easily re-installed by reinsertion.

この発明の請求項１記載の構造物の目地構造によれば、目地を挟んで対向するそれぞれの構造物に目地の間隔方向で対向する固定支持部材を取り付け、これら固定支持部材を挟む両側に跨って配置されるとともに、固定支持部材を挟んで間隔が保持された移動支持部材を設け、これら固定支持部材と移動支持部材とのいずれか一方に止水部材を取り付けて、いずれか他方に圧着してシールするようにしたので、地震時などの急激な固定支持部材の変位に対して移動支持部材を対応させて変位させることができ、これらの変位が生じても止水部材の圧着力を保持することもでき、遮水性を確保することができる。   According to the joint structure of the structure according to the first aspect of the present invention, the fixed support members facing each other in the interval direction of the joint are attached to the respective structures facing each other with the joint interposed therebetween, and straddle both sides sandwiching these fixed support members. And a movable support member that is held at an interval with the fixed support member interposed therebetween, and a water stop member is attached to one of the fixed support member and the movable support member, and is crimped to the other. Because the seal is sealed, the movable support member can be displaced in response to a sudden displacement of the fixed support member during an earthquake or the like, and the pressure-bonding force of the water-stopping member is maintained even if these displacements occur. It is also possible to ensure water shielding.

また、この発明の請求項２記載の構造物の目地構造によれば、前記移動支持部材の間隔を調整可能に構成したので、移動支持部材の間隔を調整することで止水部材の圧着力を変えることができ、遮水性能を調整することができるとともに、圧着が生じないようにすることで簡単に施工することもできる。   Moreover, according to the joint structure of the structure according to claim 2 of the present invention, since the interval between the movable support members is configured to be adjustable, the pressure-bonding force of the water stop member can be increased by adjusting the interval between the movable support members. It can be changed, the water shielding performance can be adjusted, and can be easily constructed by preventing the occurrence of pressure bonding.

さらに、この発明の請求項３記載の構造物の目地構造によれば、前記移動支持部材を、長手方向に分割し、連結して構成するようにしたので、運搬性や施工性を向上することができ、現地で組立ながら施工することもできる。   Furthermore, according to the joint structure of the structure according to claim 3 of the present invention, since the movable support member is divided and connected in the longitudinal direction, the transportability and workability are improved. It can also be constructed while assembling locally.

また、この発明の請求項４記載の構造物の目地構造によれば、前記固定支持部材および前記移動支持部材を、前記目地に隣接して形成した凹部に設けるようにしたので、構造物の壁面から突き出す部分をなくすことができ、これまでと同様の外観形状にすることができる。   According to the joint structure of a structure according to claim 4 of the present invention, since the fixed support member and the movable support member are provided in the recess formed adjacent to the joint, the wall surface of the structure The portion protruding from the surface can be eliminated, and the same external shape as before can be obtained.

さらに、この発明の請求項５記載の構造物の目地構造によれば、前記固定支持部材と前記移動支持部材とのいずれか一方に、前記止水部材の抜けを防止する突起部を設けたので、止水部材が外れることを防止することができ、確実に大きな変位に追従させることができるとともに、遮水性を保持することができる。   Furthermore, according to the joint structure of a structure according to claim 5 of the present invention, since the protruding portion for preventing the water-stopping member from coming off is provided on one of the fixed support member and the movable support member. Further, it is possible to prevent the water-stopping member from coming off, to reliably follow a large displacement, and to maintain water shielding.

また、この発明の請求項６記載の構造物の目地構造によれば、前記固定支持部材および前記移動支持部材に、防錆処理を施すようにしたので、海洋などに構築する場合でも、腐食を防止して耐久性を大幅に向上することができる。   Further, according to the joint structure of the structure according to claim 6 of the present invention, the anti-corrosion treatment is applied to the fixed support member and the movable support member. The durability can be greatly improved.

さらに、この発明の請求項７記載の構造物の目地の施工方法によれば、目地を挟んで対向するそれぞれの構造物に目地の間隔方向に対向する固定支持部材を取り付けた後、これら固定支持部材を挟む両側に跨って配置されるとともに、固定支持部材を挟んで間隔が保持された移動支持部材を挿入するようにし、これら固定支持部材と移動支持部材とのいずれか一方に、いずれか他方に圧着されてシールする止水部材を予め取り付けて施工するようにしたので、いずれかに止水部材を取り付けておき、固定支持部材に２枚の間隔をあけた移動支持部材を挿入することで簡単に施工することができるとともに、急激な変位に対してもこれを吸収して遮水することができる。   Furthermore, according to the method for constructing joints for a structure according to claim 7 of the present invention, after fixing fixed support members facing in the interval direction of the joints to the respective structures facing each other across the joints, these fixed supports A movable support member that is disposed across both sides of the member and that is held at an interval across the fixed support member is inserted, and either one of the fixed support member and the movable support member or the other Since the water-stopping member that is pressure-bonded to and sealed is installed in advance, the water-stopping member is attached to either of them, and the movable support member with two gaps is inserted into the fixed support member. It can be easily constructed, and can absorb water even when sudden displacement occurs, thereby blocking water.

また、この発明の請求項８記載の構造物の目地の施工方法によれば、前記移動支持部材を挿入後その間隔を調整して前記止水部材の圧着力を調整するようにしたので、移動支持部材の間隔を調整することで止水部材の圧着力を変えることができ、遮水性能を調整することができるとともに、圧着が生じないようにすることで簡単に施工することができる。   According to the method for constructing a joint of a structure according to claim 8 of the present invention, since the distance between the movable support members is adjusted after the movable support member is inserted, the pressure-bonding force of the water stop member is adjusted. By adjusting the interval between the support members, the pressure-bonding force of the water-stopping member can be changed, the water-blocking performance can be adjusted, and the construction can be easily performed by preventing the pressure-bonding from occurring.

さらに、この発明の請求項９記載の構造物の目地の施工方法によれば、前記移動支持部材を、長手方向に分割し、挿入しながら連結して組み立てるようにしたので、運搬性や施工性を向上することができ、現地で組立ながら施工することもできる。   Furthermore, according to the method for constructing a joint for a structure according to claim 9 of the present invention, the movable support member is divided in the longitudinal direction and connected and assembled while being inserted. Can be improved, and can also be constructed while assembling locally.

また、この発明の請求項１０記載の構造物の目地の施工方法によれば、前記移動支持部材に前記止水部材を取り付ける一方、当該止水部材が破損した場合に移動支持部材を引き抜き、止水部材を交換後再挿入して施工するようにしたので、止水部材に破損などが生じても移動支持部材ごと引き抜いて交換でき、再挿入することで簡単に再施工することができる。   According to the method for constructing a joint for a structure according to claim 10 of the present invention, the water stopping member is attached to the moving support member, and when the water stopping member is damaged, the moving support member is pulled out and stopped. Since the water member is reinserted after the replacement, the construction can be performed by pulling out the entire moving support member and replacing it even if the water stop member is damaged.

以下、この発明の実施の形態について図面を参照して詳細に説明する。
図１および図２は、この発明の構造物の目地構造をケーソンに適用した一実施の形態にかかり、図１は部分拡大斜視図、図２は平面図および部分拡大平面図である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 and 2 relate to an embodiment in which the joint structure of the structure of the present invention is applied to a caisson, FIG. 1 is a partially enlarged perspective view, and FIG. 2 is a plan view and a partially enlarged plan view.

この構造物の目地構造１０では、ケーソン１、１間の目地２を挟んで対向する端面１ａのそれぞれの両端部に段差状に切り欠いた凹部１１が形成され、対向する凹部１１，１１同士で矩形の空間が形成されるようにしてある。   In the joint structure 10 of this structure, the concave portions 11 notched in steps are formed at both end portions of the end surface 1a facing each other with the joint 2 between the caisson 1 and 1 interposed therebetween. A rectangular space is formed.

そして、これら凹部１１、１１の中央部には、目地２の間隔方向（目地の幅方向）Ｘで対向する板状の固定支持部材１２、１２がそれぞれのケーソン１，１の端面１ａ、１ａに埋設されるなどで取り付けられており、ケーソン１，１の高さ方向全長にわたって配置されるとともに、先端面同士にほぼ目地２の間隔程度の隙間が形成されて対向するようになっている。   And in the center part of these recessed parts 11 and 11, the plate-shaped fixing support members 12 and 12 which oppose in the space | interval direction (width direction of a joint) X of the joint 2 are on the end surfaces 1a and 1a of each caisson 1,1. The caisson 1 and the caisson 1 are disposed over the entire length in the height direction, and the front end surfaces are opposed to each other with a gap of approximately the distance between the joints 2 formed therebetween.

また、板状の固定支持部材相１２，１２の先端部両側には、止水部材の抜け出しを防止する突起部１３として丸棒が溶接などで取り付けてある。   In addition, round bars are attached to both sides of the distal end portions of the plate-like fixed support member phases 12 and 12 as the projections 13 for preventing the water-stopping member from coming out by welding or the like.

このような固定支持部材１２，１２の両側には、２枚の板状材１４ａ、１４ａを対向させて連結して構成される移動支持部材１４がケーソン１の高さ方向の全長にわたって設けられ、２枚の板状材１４ａ、１４ａが固定支持部材１２、１２を挟むように配置されるとともに、各板状材１４ａが２つの固定支持部材１２、１２を跨ぐように配置され、中央部に貫通して設けた間隔調整ボルト１５およびナット１６を２枚の金属製ワッシャ１７ａおよびその間のゴム製ワッシャ１７ｂを介して水密状態で間隔を調整して連結できるようにしてある。   On both sides of such fixed support members 12, 12, a movable support member 14 configured by connecting two plate-like members 14a, 14a facing each other is provided over the entire length of the caisson 1, The two plate-like materials 14a, 14a are arranged so as to sandwich the fixed support members 12, 12, and each plate-like material 14a is arranged so as to straddle the two fixed support members 12, 12, and penetrates through the central portion. The spacing adjusting bolt 15 and the nut 16 provided in this manner can be connected in a watertight state by adjusting the spacing through two metal washers 17a and a rubber washer 17b therebetween.

そして、この移動支持部材１４の２枚の板状材１４ａの内側には、２つの固定支持部材１２、１２のそれぞれに圧着される止水部材１８がケーソン１の高さ方向全長に渡って対向するよう取り付けてあり、合計４個の止水部材１８が用いられている。   And the water stop member 18 crimped | bonded to each of the two fixed support members 12 and 12 is opposed over the full length direction of the caisson 1 inside the two plate-like materials 14a of this movement support member 14. A total of four water-stop members 18 are used.

この止水部材１８としては、例えば横断面形状が略三角形状のものが用いられ、底辺部分を移動支持部材１４に接着などで取り付け、頂部を固定支持部材１２、１２の表面に圧着するようにする。   As the water stop member 18, for example, one having a substantially triangular cross section is used, and the bottom portion is attached to the movable support member 14 by adhesion or the like, and the top portion is crimped to the surfaces of the fixed support members 12 and 12. To do.

したがって、２枚の板状材１４ａ、１４ａの間隔は、組立状態では、止水部材１８の頂部同士で固定支持部材１２、１２を圧着状態で挟むことができるように調整される。   Therefore, the interval between the two plate-like members 14a and 14a is adjusted so that the fixed support members 12 and 12 can be sandwiched between the tops of the water blocking members 18 in the assembled state.

また、ケーソン１、１の目地２には、これまでと同様、アスファルトマスチックなどの目地充填材１９が充填してある。   The joints 2 of the caissons 1 and 1 are filled with joint fillers 19 such as asphalt mastic as before.

このような構造物の目地構造１０は、例えば図３に示すように、ケーソン１、１の凹部１１にそれぞれ固定支持部材１２、１２を取り付けた状態で端面１ａ同士を目地２の間隔をあけて対向させて設置した後、２枚の板状材１４ａ、１４ａの内側に４個の止水部材１８が取り付けられて間隔調整ボルト１５およびナット１６で連結された移動支持部材１４を吊り下ろすようにして止水部材１８の頂部の間に固定支持部材１２、１２が位置するようにする。   For example, as shown in FIG. 3, the joint structure 10 of such a structure has a space between the joints 2 between the end faces 1 a with the fixed support members 12 and 12 attached to the recesses 11 of the caissons 1 and 1, respectively. After being installed facing each other, four water-stop members 18 are attached to the inside of the two plate-like members 14a and 14a, and the movable support member 14 connected by the distance adjusting bolt 15 and the nut 16 is suspended. Thus, the fixed support members 12, 12 are positioned between the tops of the water stop members 18.

このとき、移動支持部材１４の２枚の板状材１４ａ、１４ａの間隔を広げた状態として止水部材１８の頂部が圧着状態とならないようにすれば、吊り下ろしを簡単に行なうことができ、吊り下ろし後に調整ボルト１５およびナット１６による間隔を調整して止水部材１８が所定の圧着力で圧着されるようにする。   At this time, if the distance between the two plate-like members 14a and 14a of the moving support member 14 is widened so that the top of the water stop member 18 is not in a crimped state, the suspension can be easily performed. After the suspension, the interval between the adjusting bolt 15 and the nut 16 is adjusted so that the water stop member 18 is crimped with a predetermined crimping force.

なお、作業現場によって吊り下ろし後の調整ボルト１５およびナット１６の締め付け作業などが困難な場合には、間隔調整後吊り下ろすようにしても良い。   If it is difficult to tighten the adjusting bolt 15 and the nut 16 after the suspension at the work site, the adjustment bolt 15 and the nut 16 may be suspended after the interval adjustment.

こうして目地構造１０の組立施工が完了した後、目地２にアスファルトマスチックなどの目地充填材１９を充填し、目地の遮水が完了する。   After the assembly construction of the joint structure 10 is completed in this manner, the joint 2 is filled with a joint filler 19 such as asphalt mastic to complete the water shielding of the joint.

このように構成した構造物の目地構造１０およびその施工方法では、図４および図５に示すように、目地２の間隔が設置時の初期状態から狭くなったり、開いて広くなる場合でも止水部材１８が固定支持部材１２、１２に圧着された状態が保持され、目地２がずれるように変位する場合でも同様に、止水部材１８が固定支持部材１２，１２に圧着された状態が保持される。   In the joint structure 10 and the construction method therefor constructed as described above, as shown in FIGS. 4 and 5, the water stoppage even when the distance between the joints 2 is narrowed from the initial state at the time of installation or is widened open. Even when the member 18 is crimped to the fixed support members 12 and 12 and is displaced so that the joint 2 is displaced, the state where the water stop member 18 is crimped to the fixed support members 12 and 12 is maintained. The

これにより、地震時などの急激な動きがケーソン１、１間に生じても完全な遮水状態を維持することができ、常時不透水性地層が保たれる。   As a result, even if a sudden movement such as during an earthquake occurs between the caissons 1 and 1, a completely water-impervious state can be maintained, and an impermeable formation is always maintained.

また、止水部材１８が損傷するようなことが生じても、移動支持部材１４ごと引き抜くようにすることで、止水部材１８も引き上げることができ、間隔調整ボルト１５およびナット１６を緩めて止水部材１８を交換後、再び挿入するようにすることで、簡単に止水部材１８を交換することができる。   Even if the water stop member 18 is damaged, the water stop member 18 can be pulled up by pulling out the moving support member 14 together, and the interval adjusting bolt 15 and the nut 16 are loosened and stopped. By replacing the water member 18 and then inserting it again, the water stop member 18 can be easily replaced.

なお、上記実施の形態では、移動支持部材１４の２枚の板状材１４ａ、１４ａの内側に止水部材１８を取り付けるようにしたが、図６に示すように、固定支持部材１２のそれぞれの両側に止水部材１８を取り付けて移動支持部材１４の板状材１４ａ，１４ａに圧着してシールするようにしても良い。この場合には、止水部材１８の抜けを防止する突起部１３を移動支持部材１４の２枚の板状材１４ａ，１４ａの両端部に設けるようにする。   In the above-described embodiment, the water stop member 18 is attached to the inside of the two plate-like members 14a and 14a of the moving support member 14, but as shown in FIG. The water stop members 18 may be attached to both sides, and the plate-like members 14a and 14a of the movement support member 14 may be pressed and sealed. In this case, the protrusions 13 that prevent the water-stopping member 18 from coming off are provided at both ends of the two plate-like members 14 a and 14 a of the movement support member 14.

また、上記実施の形態では、移動支持部材１４をケーソン１の高さ方向に一体構造として構成したが、図７に示すように、ケーソン１の高さ方向に分割構造とし、連結板１４ｂを当てて連結するようにしても良く、施工に際しては、分割したものを吊り下ろすように挿入しながらその上端部に連結することを繰り返すようにすれば良い。
これにより、現場への運搬性や施工性を向上することができる。 In the above embodiment, the movable support member 14 is configured as an integral structure in the height direction of the caisson 1, but as shown in FIG. 7, it is divided in the height direction of the caisson 1, and the connecting plate 14b is applied. It may be configured to be connected to each other, and in the construction, it is only necessary to repeat the connection to the upper end portion while inserting the divided parts so as to be suspended.
Thereby, the transportability to the field and workability can be improved.

また、上記実施の形態では、固定支持部材１２、１２をケーソン１の端面１ａの両側に形成した凹部１１に取り付けるようにしたが、図８に示すように、ケーソン１の側壁部にブラケット２０を突き出すように取り付け、このブラケット２０、２０間に目地２の間隔方向Ｘで対向するように固定支持部材１２、１２を取り付けるようにしても良い。   Moreover, in the said embodiment, although the fixed support members 12 and 12 were attached to the recessed part 11 formed in the both sides of the end surface 1a of the caisson 1, the bracket 20 is attached to the side wall part of the caisson 1, as shown in FIG. You may make it attach so that it may protrude and may attach the fixed support members 12 and 12 so that it may oppose in the space | interval direction X of the joint 2 between these brackets 20 and 20. FIG.

さらに、上記実施の形態では、止水部材１８を、横断面形状が略三角形状とした場合で説明したが、図９に示すように、横断面形状が略半円形状の止水部材１８Ａとしたり、略台形状の止水部材１８Ｂとするなど他の形状のものを用いることもできる。   Further, in the above embodiment, the water stop member 18 has been described as having a substantially triangular cross section, but as shown in FIG. 9, the water stop member 18A has a substantially semicircular cross section. Other shapes such as a substantially trapezoidal water-stopping member 18B can also be used.

また、この構造物の目地構造１０を海洋構造物に適用する場合には、固定支持部材１２や移動支持部材１４などの鋼材に防錆処理を施すことが耐久性向上に有効であり、たとえば重防食またはゴムライニングなどを施すようにする。   Further, when the joint structure 10 of this structure is applied to an offshore structure, it is effective to improve the durability by subjecting the steel materials such as the fixed support member 12 and the movable support member 14 to rust prevention. Apply anticorrosion or rubber lining.

さらに、上記実施の形態では、ケーソンの両端部に目地構造１０を設けるようにしたが、一端部または中央部の一ヶ所だけとしたり、さらに複数箇所としても良い。   Furthermore, in the said embodiment, although the joint structure 10 was provided in the both ends of a caisson, it is good also as only one place of one end part or a center part, and also more places.

また、上記実施の形態では、ケーソンの目地に適用する場合で説明したが、ケーソンに限らず他の構造物の目地にも同様に適用することができる。   Moreover, in the said embodiment, although demonstrated in the case of applying to the joint of a caisson, it can apply similarly to the joint of not only a caisson but another structure.

この発明の構造物の目地構造をケーソンに適用した一実施の形態にかかる部分拡大斜視図である。It is a partial expansion perspective view concerning one embodiment which applied the joint structure of the structure of this invention to a caisson. この発明の構造物の目地構造をケーソンに適用した一実施の形態にかかる平面図および部分拡大平面図である。It is the top view and partial enlarged plan view concerning one embodiment which applied the joint structure of the structure of this invention to a caisson. この発明の構造物の目地の施工方法をケーソンに適用した一実施の形態にかかる概略斜視図である。It is a schematic perspective view concerning one Embodiment which applied the construction method of the joint of the structure of this invention to the caisson. この発明の構造物の目地構造をケーソンに適用した一実施の形態にかかる初期状態と変位状態の部分拡大平面図である。It is the elements on larger scale of the initial state and displacement state concerning one embodiment which applied the joint structure of the structure of this invention to a caisson. この発明の構造物の目地構造をケーソンに適用した一実施の形態にかかるそれぞれ変位状態の部分拡大平面図である。It is the elements on larger scale of each displacement state concerning one embodiment which applied the joint structure of the structure of this invention to a caisson. この発明の構造物の目地構造をケーソンに適用した他の一実施の形態にかかる部分拡大平面図である。It is the elements on larger scale concerning another embodiment which applied the joint structure of the structure of this invention to the caisson. この発明の構造物の目地の施工方法をケーソンに適用した他の一実施の形態にかかる概略斜視図である。It is a schematic perspective view concerning other one Embodiment which applied the construction method of the joint of the structure of this invention to the caisson. この発明の構造物の目地構造をケーソンに適用したさらに他の一実施の形態にかかる平面図である。It is a top view concerning another embodiment which applied the joint structure of the structure of this invention to a caisson. この発明の構造物の目地構造をケーソンに適用した他の一実施の形態にかかる止水部材の横断面図である。It is a cross-sectional view of the water stop member concerning other one embodiment which applied the joint structure of the structure of this invention to a caisson. 従来のケーソンの目地構造の概略斜視図である。It is a schematic perspective view of the joint structure of the conventional caisson.

符号の説明Explanation of symbols

１ ケーソン
１ａ 端面
２ 目地
１０ 構造物の目地構造
１１ 凹部
１２ 固定支持部材
１３ 突起部
１４ 移動支持部材
１４ａ 板状材
１４ｂ 連結板
１５ 間隔調整ボルト
１６ ナット
１７ シール材
１７ａ 金属製ワッシャ
１７ｂ ゴム製ワッシャ
１８ 止水部材
１８Ａ 止水部材
１８Ｂ 止水部材
１９ 目地用充填材
２０ ブラケット
Ｘ 目地の間隔方向 DESCRIPTION OF SYMBOLS 1 Caisson 1a End surface 2 Joint 10 Joint structure 11 Structure recessed part 12 Fixed support member 13 Protrusion part 14 Movement support member 14a Plate-like material 14b Connection board 15 Spacing adjustment bolt 16 Nut 17 Sealing material 17a Metal washer 17b Rubber washer 18 Water stop member 18A Water stop member 18B Water stop member 19 Filler for joint 20 Bracket X Joint spacing direction

Claims (10)

目地を挟んで対向する構造物間の目地構造であって、
前記それぞれの構造物に取り付けられて前記目地の間隔方向で対向する固定支持部材と、
これら固定支持部材を挟む両側に跨って配置されるとともに、前記固定支持部材を挟んで間隔が保持された移動支持部材と、
前記固定支持部材と前記移動支持部材とのいずれか一方に取り付けられ、いずれか他方に圧着されてシールする止水部材とを備えることを特徴とする構造物の目地構造。 A joint structure between structures facing each other across the joint,
Fixed support members attached to the respective structures and facing each other in the joint spacing direction;
A movable support member that is disposed across both sides of the fixed support member and that holds a distance across the fixed support member, and
A joint structure for a structure, comprising: a water stop member attached to one of the fixed support member and the movable support member and sealed by being crimped to the other. 前記移動支持部材の間隔を調整可能に構成したことを特徴とする請求項１記載の構造物の目地構造。   The joint structure of a structure according to claim 1, wherein the distance between the movable support members is adjustable. 前記移動支持部材を、長手方向に分割し、連結して構成したことを特徴とする請求項１または２記載の構造物の目地構造。   The joint structure of a structure according to claim 1 or 2, wherein the movable support member is divided and connected in the longitudinal direction. 前記固定支持部材および前記移動支持部材を、前記目地に隣接して形成した凹部に設けたことを特徴とする請求項１〜３のいずれかに記載の構造物の目地構造。   The joint structure for a structure according to any one of claims 1 to 3, wherein the fixed support member and the movable support member are provided in a recess formed adjacent to the joint. 前記固定支持部材と前記移動支持部材とのいずれか一方に、前記止水部材の抜けを防止する突起部を設けたことを特徴とする請求項１〜４のいずれかに記載の構造物の目地構造。   The joint of a structure according to any one of claims 1 to 4, wherein a protrusion is provided on one of the fixed support member and the movable support member to prevent the water stop member from coming off. Construction. 前記前記固定支持部材および前記移動支持部材に、防錆処理を施したことを特徴とする請求項１〜５のいずれかに記載の構造物の目地構造。   The joint structure of the structure according to any one of claims 1 to 5, wherein the fixed support member and the movable support member are subjected to a rust prevention treatment. 目地を挟んで対向する構造物間を止水する目地を施工するに際し、
前記それぞれの構造物に前記目地の間隔方向に対向する固定支持部材を取り付けた後、これら固定支持部材を挟む両側に跨って配置されるとともに、前記固定支持部材を挟んで間隔が保持された移動支持部材を挿入するようにし、
前記固定支持部材と前記移動支持部材とのいずれか一方には、いずれか他方に圧着されてシールする止水部材を予め取り付けて施工するようにしたことを特徴とする構造物の目地の施工方法。 When constructing joints to stop water between structures facing each other across the joints,
After the fixed support members facing the joints in the interval direction of the joints are attached to the respective structures, the movements are arranged across both sides of the fixed support members and the intervals are held with the fixed support members interposed therebetween. Insert the support member,
A construction method for jointing a structure, wherein a water-stopping member that is pressure-bonded and sealed to either one of the fixed support member and the movable support member is attached in advance. . 前記移動支持部材を挿入後その間隔を調整して前記止水部材の圧着力を調整するようにしたことを特徴とする請求項７記載の構造物の目地の施工方法。   8. The method for constructing a joint for a structure according to claim 7, wherein the distance between the movable support members is adjusted to adjust the pressure-bonding force of the water stop member. 前記移動支持部材を、長手方向に分割し、挿入しながら連結して組み立てるようにしたことを特徴とする請求項７または８記載の構造物の目地の施工方法。   9. The joint method for constructing a structure according to claim 7, wherein the movable support member is divided in the longitudinal direction and connected and assembled while being inserted. 前記移動支持部材に前記止水部材を取り付ける一方、当該止水部材が破損した場合に移動支持部材を引き抜き、止水部材を交換後再挿入して施工するようにしたことを特徴とする請求項７〜９のいずれかに記載の構造物の目地の施工方法。   The water stop member is attached to the moving support member, and when the water stop member is damaged, the water support member is pulled out, and the water stop member is replaced and reinserted for construction. The construction method of the joint of the structure in any one of 7-9.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0351412A (en) * 1989-07-17 1991-03-05 Seibu Polymer Kasei Kk Sealing device between structures
JPH04153407A (en) * 1990-10-17 1992-05-26 Tokyo Fab Kogyo Kk Expansion cut-off joint having reinforcing chain mat
JPH09302670A (en) * 1996-05-10 1997-11-25 Seibu Polymer Corp Joint structure for caisson, its construction method, and joint material for caisson
JPH1122394A (en) * 1997-06-27 1999-01-26 Shiyuto Kosoku Doro Kodan Water leakage stop processing method of expansion joint of tunnel
JP2005139887A (en) * 2003-10-15 2005-06-02 Nippon Zenith Pipe Co Ltd Concrete pipe and its assembly method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0351412A (en) * 1989-07-17 1991-03-05 Seibu Polymer Kasei Kk Sealing device between structures
JPH04153407A (en) * 1990-10-17 1992-05-26 Tokyo Fab Kogyo Kk Expansion cut-off joint having reinforcing chain mat
JPH09302670A (en) * 1996-05-10 1997-11-25 Seibu Polymer Corp Joint structure for caisson, its construction method, and joint material for caisson
JPH1122394A (en) * 1997-06-27 1999-01-26 Shiyuto Kosoku Doro Kodan Water leakage stop processing method of expansion joint of tunnel
JP2005139887A (en) * 2003-10-15 2005-06-02 Nippon Zenith Pipe Co Ltd Concrete pipe and its assembly method

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