JPH0220287Y2 - - Google Patents
Info
- Publication number
- JPH0220287Y2 JPH0220287Y2 JP1986113599U JP11359986U JPH0220287Y2 JP H0220287 Y2 JPH0220287 Y2 JP H0220287Y2 JP 1986113599 U JP1986113599 U JP 1986113599U JP 11359986 U JP11359986 U JP 11359986U JP H0220287 Y2 JPH0220287 Y2 JP H0220287Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel rod
- block body
- blocks
- elastic
- block
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 41
- 239000010959 steel Substances 0.000 claims description 41
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 239000013013 elastic material Substances 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Sewage (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は事犯中に埋設施工されるプレハブ洞道
の構造に関するものである。[Detailed description of the invention] (Field of industrial application) The present invention relates to the structure of a prefabricated tunnel that is buried during a crime.
（従来技術）
従来から、地盤中にプレハブ洞道を築造する場
合、四隅部に挿通孔を貫設している短管形状のブ
ロツク体を接合し、これらのブロツク体の挿通孔
にPC鋼棒を挿通して該PC鋼棒の一端部を一方の
ブロツク体の挿通孔開口端に適宜な金具を介して
係止させ、他端部を別なブロツク体の他端開口部
から突出させて該突出端部を緊張したのち螺子止
めすることにより一体化すると共に挿通孔の内周
面とPC鋼棒の外周面の空隙部にモルタルを注入
して固定している。又、ブロツク体同士の接合面
に介在させるパツキンも変位一定時の止水性能を
有するものである。(Prior art) Conventionally, when constructing a prefabricated tunnel in the ground, short tube-shaped blocks with insertion holes in the four corners are joined together, and PC steel rods are inserted into the insertion holes of these blocks. One end of the PC steel rod is locked to the opening end of the insertion hole of one block body via a suitable metal fitting, and the other end is made to protrude from the other end opening of another block body. After tensioning the protruding ends, they are integrated by screwing and fixed by injecting mortar into the gap between the inner circumferential surface of the insertion hole and the outer circumferential surface of the PC steel bar. Further, the gasket interposed between the joint surfaces of the blocks also has water-stopping performance when the displacement is constant.
（考案が解決しようとする問題点）
しかしながら、軟弱地盤にプレハブ洞道を埋設
した場合、地震発生時、或いは第８図に示すよう
に地盤に不等沈下が生じると、前述した従来構造
によれば、モルタルを介してブロツク体と一体化
したPC鋼棒によつて全体が剛構造に形成されて
いるために、震動の吸収や撓み荷重に対する対処
が不十分となり、洞道機能の低下や損懐が生じ、
さらに、ブロツク体の据付けが一方向で片締めと
なつているため、PC鋼棒が切断した時に緊張力
が開放され、洞道機能が低下するという問題点が
あつた。(Problem that the invention aims to solve) However, when a prefabricated tunnel is buried in soft ground, when an earthquake occurs or when uneven subsidence occurs in the ground as shown in Figure 8, the conventional structure described above cannot be used. For example, since the entire structure is made of PC steel rods that are integrated with the block body through mortar, it is insufficient to absorb vibrations and cope with deflection loads, resulting in deterioration and damage to the tunnel function. A feeling of pockets arises;
Furthermore, since the block body was installed in one direction and was tightened unevenly, there was a problem in that when the PC steel rod was cut, the tension was released and the tunnel function deteriorated.
このため、適宜個数のブロツク体毎に耐震用の
伸縮継手を設置する必要があり、建設コストが高
くなるものである。 For this reason, it is necessary to install earthquake-resistant expansion joints for each appropriate number of blocks, which increases construction costs.
本考案はこのような問題点を解消することを目
的としたプレハブ洞道の構造を提供するものであ
る。 The present invention provides a prefabricated tunnel structure aimed at solving these problems.
（問題点を解決するための手段）
上記目的を達成するために、本考案におけるプ
レハブ洞道は、実施例に対応する図面に示すよう
に、短管形状のブロツク体１の四隅部長さ方向に
貫設した挿通孔３に鋼棒２を挿通し、該鋼棒２の
対向端部間を螺子連結することにより多数個のブ
ロツク体１，１…１を直列に連結し、連通させて
なるプレハブ洞道において、ブロツク体１の前記
鋼棒挿通孔３の内周面と鋼棒２の外周面との間の
空隙４にゴムや弾性樹脂等の弾性材料５が充填さ
れてあり、さらに、互いに接合したブロツク体
１，１の接合面に弾性目地パツキン１１を介在さ
せていると共に数ブロツク体１を１ユニツトとし
て洞道内部から両締めが行えるように構成したこ
とを特徴とするものである。(Means for Solving the Problems) In order to achieve the above object, the prefabricated tunnel in the present invention extends in the length direction of the four corners of the short tube-shaped block body 1, as shown in the drawings corresponding to the embodiments. A prefabricated product in which a large number of block bodies 1, 1...1 are connected in series and communicated by inserting a steel rod 2 into a through hole 3 and connecting the opposing ends of the steel rod 2 with screws. In the tunnel, a gap 4 between the inner peripheral surface of the steel rod insertion hole 3 of the block body 1 and the outer peripheral surface of the steel rod 2 is filled with an elastic material 5 such as rubber or elastic resin. This structure is characterized in that an elastic joint packing 11 is interposed between the joined surfaces of the joined block bodies 1, 1, and that several blocks 1 are combined into one unit so that both can be tightened from inside the tunnel.
（作用）
地震或いは不等沈下が発生した場合、ブロツク
体１，１同士を連結している鋼棒２は、弾性材料
５を介してブロツク体１の挿通孔３との拘束が解
かれているので、長さ方向の伸縮及び可撓性機能
を発揮し、各ブロツク体１毎の変位に応じた変形
を行つて震動や撓みを吸収し、ブロツク体１の機
能低下及び損壊を防止すると共にブロツク体１，
１間の接合面に介在した弾性目地パツキンも変位
に追髄して水密性を保持するものである。(Function) When an earthquake or uneven settlement occurs, the steel rod 2 connecting the block bodies 1 and 1 is released from the restraint with the insertion hole 3 of the block body 1 via the elastic material 5. Therefore, it exhibits elasticity and flexibility functions in the length direction, deforms according to the displacement of each block 1, absorbs vibrations and deflections, prevents functional deterioration and damage of the block 1, and body 1,
The elastic joint gasket interposed between the joint surfaces of the joints also responds to displacement and maintains watertightness.
又、数ブロツク体を１ユニツトとして両締めを
行つているので、ブロツク体１の損壊を最小限に
留めることが可能となるものである。 Furthermore, since several blocks are combined into one unit and both sides are tightened, damage to the block 1 can be kept to a minimum.
（実施例）
本考案の実施例を図面について説明すると、１
は方形短管形状のコンクリート製ブロツク体で、
その四隅部にPC鋼棒２よりも大径の挿通孔３を
全長に亘つて貫設してなるものであり、このブロ
ツク体１を多数個、対向する前後開口端面同士を
接合しながら直列状態に連結して地盤中に第１図
に示すようなプレハブ洞道を構成するものであ
る。(Example) To explain the example of the present invention with reference to the drawings, 1
is a concrete block body in the shape of a short rectangular tube.
Insertion holes 3 with a diameter larger than that of the PC steel rod 2 are penetrated through the four corners of the block over the entire length, and a large number of these block bodies 1 are arranged in series with their opposing front and rear open end surfaces joined together. A prefabricated tunnel as shown in Fig. 1 is constructed in the ground by connecting to the ground.
ブロツク体１は、その四隅部の前後両端面に挿
通孔３を中央にして適宜深さの円孔形状の凹部
６，６を穿設してあり、これらの凹部６，６が同
一深さに形成しているブロツク体１ａと、前側の
凹所６ａの内方をブロツク体１内に開口７させて
いるブロツク体１ｂとが使用される。 The block body 1 has circular hole-shaped recesses 6, 6 of appropriate depths with the insertion hole 3 in the center on both front and rear end surfaces of its four corners, and these recesses 6, 6 have the same depth. A block body 1a is used, and a block body 1b having an opening 7 inside the block body 1 inside a recess 6a on the front side is used.
このようなブロツク体１を使用してプレハブ洞
道を築造する場合、まず、開口端内に連通してい
る凹部６ａを有するブロツク体１ｂの各挿通孔３
に、両端部に螺子部２ｂ，２ｂを設けているPC
鋼棒２を挿通し、該鋼棒２の一端部にアンカープ
レート８の中央孔を挿通してこのアンカープレー
ト８を凹所６ａに当接させた状態で締付ナツト９
により締め付け、さらに、このブロツク体１ｂの
挿通孔３から後方に向かつて突出している前記鋼
棒２に四隅部両端面に同一深さの凹所６を有する
ブロツク体１ａの各挿通孔３を挿通させてブロツ
ク体１ａ，１ｂ同士を接合し、ブロツク体１ａの
後面側の凹所６内に突出している前記鋼棒２の他
端螺子部２ｂに、第３図に示すように、アンカー
プレート８を介してナツト９を螺締することによ
り両ブロツク体１ａ，１ｂを連結する。 When constructing a prefabricated tunnel using such a block body 1, first, each insertion hole 3 of the block body 1b having the recess 6a communicating with the opening end is opened.
A PC with screw parts 2b, 2b provided at both ends.
Insert the steel rod 2 through the central hole of the anchor plate 8 through one end of the steel rod 2, and tighten the tightening nut 9 with the anchor plate 8 in contact with the recess 6a.
Then, the steel rods 2 protruding rearward from the insertion holes 3 of the block body 1b are inserted through the respective insertion holes 3 of the block body 1a, which have recesses 6 of the same depth on both end faces of the four corners. Then, as shown in FIG. 3, an anchor plate 8 is attached to the threaded portion 2b at the other end of the steel rod 2, which is protruding into the recess 6 on the rear side of the block body 1a. The two block bodies 1a and 1b are connected by screwing a nut 9 through them.
次に、ブロツク体１ａの後面側凹所６内におい
て、鋼棒２に螺合したナツト９から突出している
螺子部２ｂにカツプラー１０を螺合させ、このカ
ツプラー１０の他端部に次の鋼棒２の一端螺子部
２ａを螺合させたのち、該鋼棒２にブロツク体１
ａ，１ａを順次挿通し、後部のブロツク体１ａの
後側凹所６内に突出している鋼棒２の螺子部２ｂ
にアンカープレート８を挿通すると共にナツト９
を螺合させ、しかるのち、鋼棒２の端部をジヤツ
キにより緊張してナツト９を締め付けることによ
りこれらのブロツク体１ａ，１ａを緊結する。 Next, the coupler 10 is screwed into the threaded portion 2b protruding from the nut 9 screwed onto the steel rod 2 in the recess 6 on the rear side of the block body 1a, and the other end of the coupler 10 is attached to the next steel rod. After screwing the threaded portion 2a at one end of the rod 2, the block body 1 is attached to the steel rod 2.
a, 1a in sequence, and the threaded portion 2b of the steel rod 2 protruding into the rear recess 6 of the rear block body 1a.
Insert the anchor plate 8 into the hole and tighten the nut 9.
are screwed together, and then the ends of the steel rods 2 are tightened with jacks and the nuts 9 are tightened to tightly connect these block bodies 1a, 1a.
次いで第５図に示すように、数ブロツク毎に一
端螺子部２ａにアンカープレート８とナツト９を
装着している鋼棒２の該螺子部先端をカツプラー
１０を介して既に配設されている前記鋼棒２の先
端に連結し、連結した鋼棒２に凹所６ａを有する
ブロツク体１ｂと前後両端面に同一深さの凹所
６，６を有するブロツク体１ａとの挿通孔３を順
次挿通して後部のブロツク体１ａの後側凹所６内
に突出している鋼棒２の螺子部２ｂにアンカープ
レート８を挿通すると共にナツト９を螺合させ、
しかるのち、鋼棒２の端部をジヤツキにより緊張
してナツト９を締め付けると共にブロツク体１ｂ
の内部から凹所６ａ内のナツト９を螺締すること
により両締めを行うものである。 Next, as shown in FIG. 5, every few blocks, the tip of the threaded part of the steel rod 2, which has an anchor plate 8 and a nut 9 attached to the threaded part 2a at one end, is connected to the threaded part 2a of the steel bar 2, which has already been installed, via a coupler 10. Connected to the tip of the steel rod 2, the block body 1b having a recess 6a in the connected steel rod 2 and the block body 1a having recesses 6, 6 of the same depth on both front and rear end surfaces are sequentially inserted through the insertion hole 3. Then, the anchor plate 8 is inserted into the threaded portion 2b of the steel rod 2 protruding into the rear recess 6 of the rear block body 1a, and the nut 9 is screwed together.
Thereafter, the end of the steel bar 2 is tightened with a jack and the nut 9 is tightened, and the block body 1b is tightened.
Both sides are tightened by screwing the nut 9 in the recess 6a from inside.
このような連結作業を順次繰り返し行つてプレ
ハブ洞道を築造するものである。 A prefabricated tunnel is constructed by repeating this connection process in sequence.
５は、ブロツク体１に設けた挿通孔３の内周面
と、該挿通孔３に挿通したPC鋼棒２との間の空
隙４に充満させているゴム系アスフアルトや弾性
樹脂等の弾性材料である。 5 is an elastic material such as rubber-based asphalt or elastic resin that fills the gap 4 between the inner peripheral surface of the insertion hole 3 provided in the block body 1 and the PC steel rod 2 inserted into the insertion hole 3. It is.
この弾性材料５の充填は、ブロツク体１，１同
士の接合後に、硬化後弾性力を発揮する液状の弾
性材料をブロツク体１，１の外周面から各挿通孔
３に連通している注入孔（図示せず）から注入す
ることにより行うことができる。 The filling of the elastic material 5 is carried out after the blocks 1, 1 are joined to each other, and a liquid elastic material that exhibits elastic force after hardening is filled into the injection hole communicating with each insertion hole 3 from the outer peripheral surface of the blocks 1, 1. (not shown).
尚、予め、両端螺子部２ａ，２ｂを除くPC鋼
棒２の外周に筒状弾性材料を被嵌しておき、この
鋼棒２を挿通孔３に挿通してもよい。 Incidentally, a cylindrical elastic material may be fitted in advance to the outer periphery of the PC steel bar 2 except for the threaded portions 2a and 2b at both ends, and the steel bar 2 may be inserted into the insertion hole 3.
１１はブロツク体１の前後接合端面において、
凹所６，６ａの外方側の外周に無端環状に周設し
た弾性目地パツキンである。 11 is the front and rear joint end surfaces of the block body 1;
This is an elastic joint packing provided in an endless ring shape around the outer periphery of the recesses 6, 6a.
１２は凹所６，６ａの開口端の周囲内側にもう
けた弾性目地パツキンで、その両端を接合端面全
周に亘つて設けた前記目地パツキン１１の適所に
一体に接続して凹所６，６ａを囲繞してある。 Reference numeral 12 denotes an elastic joint packing provided inside the periphery of the opening ends of the recesses 6, 6a, and both ends of the elastic joint packing 12 are integrally connected to appropriate positions of the joint packing 11 provided over the entire circumference of the joint end faces to form the recesses 6, 6a. is surrounded.
１３はブロツク体１の接合面内周部に全周に亘
つて設けた弾性コーキング材である。 Reference numeral 13 denotes an elastic caulking material provided all around the inner periphery of the joint surface of the block body 1.
これらの目地パツキン１１，１２及びコーキン
グ材１３は、ブロツク体１，１同士を接合した際
に、互いに弾性的に圧接して止水性を保持するも
のである。 These joint packings 11, 12 and caulking material 13 elastically press against each other to maintain water-stopping properties when the blocks 1, 1 are joined together.
（考案の効果）
このように本考案におけるプレハブ洞道の構造
によれば、短管形状のブロツク体１の四隅部長さ
方向に貫設した挿通孔３に鋼棒２を挿通し、該鋼
棒２の対向端部間を螺子連結することにより多数
個のブロツク体１，１…１を直列に連結、連通さ
せてなるプレハブ洞道において、ブロツク体１の
前記鋼棒挿通孔３の内周面と鋼棒２の外周面との
間の空隙４にゴムや弾性樹脂等の弾性材料５を充
填しているので、鋼棒２が挿通孔３に対して長さ
方向に自由に伸縮可能となると共に撓みが可能と
なり、従つて、地震発生時においてはその震動を
弾性材料５を介して吸収することができ、又、地
盤沈下が生じた場合にはブロツク体１の変位に鋼
棒２が追髄して撓み、耐震用の継手を使用するこ
となくブロツク体１の損壊を防止できるものであ
る。(Effect of the invention) As described above, according to the structure of the prefabricated tunnel according to the present invention, the steel rod 2 is inserted into the insertion hole 3 provided in the longitudinal direction of the four corners of the short tube-shaped block body 1. In a prefabricated tunnel formed by connecting and communicating a large number of block bodies 1, 1, . Since the gap 4 between the steel rod 2 and the outer peripheral surface of the steel rod 2 is filled with an elastic material 5 such as rubber or elastic resin, the steel rod 2 can freely expand and contract in the length direction with respect to the insertion hole 3. Therefore, when an earthquake occurs, the vibration can be absorbed through the elastic material 5, and when ground subsidence occurs, the steel rod 2 follows the displacement of the block 1. This allows the block body 1 to be prevented from being damaged without the need for earthquake-resistant joints.
又、不測の事態でPC鋼棒２が切断した時には、
緊張の開放を防止するため数ブロツク体毎に両締
めを行つているため、ブロツク体の損壊を最小限
に留めることができるものである。 Also, if the PC steel bar 2 breaks due to an unexpected situation,
Since both blocks are tightened every few blocks to prevent release of tension, damage to the blocks can be kept to a minimum.
さらに本考案は、互いに接合したブロツク体
１，１の接合面に弾性目地パツキン１１を介在さ
せているので、前記弾性材料と共にブロツク体１
の変位に追髄して水密性を保持することができる
ものである。 Furthermore, in the present invention, since the elastic joint packing 11 is interposed between the joint surfaces of the block bodies 1 and 1 which are joined together, the block bodies 1 and 1 are interposed with the elastic material.
It is possible to maintain watertightness by paying close attention to the displacement of the material.
図面は本考案の実施例を示すもので、第１図は
プレハブ洞道の簡略縦断側面図、第２図は縦断正
面図、第３図はブロツク体同士の接続部の拡大縦
断側面図、第４図は第３図Ａ−Ａ線における端面
部、第５図はブロツク体同士の他の接続部の拡大
縦断側面図、第６図は第５図Ｂ−Ｂ線における端
面図、第７図は挿通孔に挿通したPC鋼棒の縦断
正面図、第８図は不等沈下が発生した状態の簡略
斜視図である。
１……ブロツク体、２……PC鋼棒、３……挿
通孔、４……空隙、５……弾性材料、１１……弾
性目地パツキン。
The drawings show an embodiment of the present invention; FIG. 1 is a simplified longitudinal side view of a prefabricated tunnel, FIG. 2 is a longitudinal front view, FIG. 3 is an enlarged longitudinal side view of the connection between block bodies, and FIG. 4 is an end view taken along the line A-A in FIG. 3, FIG. 5 is an enlarged vertical cross-sectional side view of another connection between the blocks, FIG. 6 is an end view taken along the line B-B in FIG. 5, and FIG. 8 is a longitudinal sectional front view of the PC steel rod inserted into the insertion hole, and FIG. 8 is a simplified perspective view of the state where uneven settlement has occurred. 1...Block body, 2...PC steel rod, 3...Insertion hole, 4...Gap, 5...Elastic material, 11...Elastic joint packing.
Claims (1)
設した挿通孔３に鋼棒２を挿通し、該鋼棒２の対
向端部間を螺子連結することにより多数個のブロ
ツク管１，１…１を直列に連結、連通させてなる
プレハブ洞道において、ブロツク体１の前記鋼棒
挿通孔３の内周面と鋼棒２の外周面との間の空隙
４にゴムや弾性樹脂等の弾性材料５が充填されて
あり、さらに、互いに接合したブロツク体１，１
の接合面に弾性目地パツキン１１を介在させると
共に数ブロツク体毎に両締めするように構成して
いることを特徴とするプレハブ洞道の構造。 A large number of block tubes 1, 1 are inserted by inserting the steel rod 2 into the insertion holes 3 extending in the length direction at the four corners of the short tube-shaped block body 1, and connecting the opposing ends of the steel rod 2 with screws. In a prefabricated tunnel formed by connecting and communicating 1 in series, a gap 4 between the inner circumferential surface of the steel rod insertion hole 3 of the block body 1 and the outer circumferential surface of the steel rod 2 is filled with rubber, elastic resin, etc. The blocks 1, 1 are filled with an elastic material 5 and are bonded to each other.
The structure of the prefabricated tunnel is characterized in that an elastic joint packing 11 is interposed on the joining surface of the tunnel, and the construction is such that both blocks are tightened every few blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986113599U JPH0220287Y2 (en) | 1986-07-24 | 1986-07-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986113599U JPH0220287Y2 (en) | 1986-07-24 | 1986-07-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6323383U JPS6323383U (en) | 1988-02-16 |
| JPH0220287Y2 true JPH0220287Y2 (en) | 1990-06-04 |
Family
ID=30995555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986113599U Expired JPH0220287Y2 (en) | 1986-07-24 | 1986-07-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0220287Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937242U (en) * | 1982-08-31 | 1984-03-08 | ニスカ株式会社 | Paper feeding device |
| JP6193091B2 (en) * | 2013-10-29 | 2017-09-06 | オリエンタル白石株式会社 | Repair method of PC structure |
-
1986
- 1986-07-24 JP JP1986113599U patent/JPH0220287Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6323383U (en) | 1988-02-16 |
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