JP2742973B2 - Joint structure of lining of high-pressure gas storage underground cavity - Google Patents
Joint structure of lining of high-pressure gas storage underground cavityInfo
- Publication number
- JP2742973B2 JP2742973B2 JP4297159A JP29715992A JP2742973B2 JP 2742973 B2 JP2742973 B2 JP 2742973B2 JP 4297159 A JP4297159 A JP 4297159A JP 29715992 A JP29715992 A JP 29715992A JP 2742973 B2 JP2742973 B2 JP 2742973B2
- Authority
- JP
- Japan
- Prior art keywords
- lining
- segment
- gas storage
- pressure gas
- peripheral surface
- 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 - Fee Related
Links
- 239000002184 metal Substances 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 239000011150 reinforced concrete Substances 0.000 claims description 8
- 239000011378 shotcrete Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 19
- 238000003466 welding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000004567 concrete Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は天然ガスや圧縮空気等
を、例えば５０〜１５０気圧の高圧状態で、地下の岩盤
に掘削された空洞に貯蔵する場合のライニングの継手構
造に係るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure of a lining for storing natural gas, compressed air or the like under a high pressure of, for example, 50 to 150 atmospheres in a cavity excavated in underground rock. .
【０００２】[0002]
【従来の技術】地下の岩盤空洞に天然ガスや圧縮空気等
の気体を高圧で貯蔵する場合、同気体を気密に貯蔵する
ため、外側ライニングを構成する鉄筋コンクリートの内
表面に、ゴム系やプラスチック系のシートや、薄いステ
ンレススチールシート等の金属製のシート、あるいはメ
ンブレン等の気密性ライニングを接着剤によって接着し
たり、溶接する方法が行なわれていた。この際、気密性
シート自体の継手部は、金属系の場合は溶接、ゴム系や
プラスチック系の場合は溶着する方法が考えられてい
る。2. Description of the Related Art When a gas such as natural gas or compressed air is stored in an underground rock cavity at a high pressure, a rubber-based or plastic-based material is applied to the inner surface of reinforced concrete constituting an outer lining in order to store the gas in an airtight manner. Or a metal sheet such as a thin stainless steel sheet, or an airtight lining such as a membrane is bonded or welded with an adhesive. At this time, a method of welding the joint portion of the hermetic sheet itself in the case of a metal system and welding in the case of a rubber system or a plastic system has been considered.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の気密ライニ
ングは、一定の圧力で高圧の気体を地下空洞に貯蔵する
場合、外側ライニングへの定着や気密性ライニング自体
の継手部の信頼性はある程度確保されたが、日々貯蔵圧
力が気体の払い出し、及び受入れで変化する場合は、内
圧の変化、即ち繰り返し荷重により外側ライニングへの
定着部、及び気密性ライニング自体の継手部に応力集中
が生じ、このため同部の劣化による気体の漏洩の惧れが
ある。In the conventional airtight lining, when a high-pressure gas is stored in an underground cavity at a constant pressure, the fixing to the outer lining and the reliability of the joint portion of the airtight lining itself are ensured to some extent. However, if the storage pressure changes daily due to the discharge and reception of gas, the internal pressure changes, that is, the repeated load causes a stress concentration at the anchoring portion on the outer lining and the joint portion of the airtight lining itself. Therefore, there is a fear that gas leaks due to deterioration of the part.
【０００４】また外側ライニング自体も内圧による引張
応力により、コンクリート系ライニングの場合には亀裂
が発生し、支保材としての機能が低下する。本発明は前
記従来技術の有する問題点に鑑みて提案されたもので、
その目的とする処は、貯蔵高圧ガスの内圧による引張応
力の低減はもとより、内圧の変化に伴う繰り返し荷重に
よる疲労破壊を防止することができ、また気密性ライニ
ングの施工性もよく、点検時等の内圧が０ｋｇ／ｃｍ2
のときの気密性ライニング材の保持機構を具えた高圧ガ
ス貯蔵地下空洞のライニングの継手構造を提供する点に
ある。[0004] In the case of concrete linings, cracks occur in the outer lining itself due to tensile stress due to internal pressure, and the function as a support material is reduced. The present invention has been proposed in view of the problems of the prior art,
Its purpose is to not only reduce the tensile stress due to the internal pressure of the stored high-pressure gas, but also to prevent the fatigue failure due to the repeated load caused by the change in the internal pressure. Internal pressure of 0kg / cm 2
Another object of the present invention is to provide a joint structure for a lining of a high-pressure gas storage underground cavity having a mechanism for holding an airtight lining material at the time of (1).
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係る高圧ガス貯蔵地下空洞のライニング継
手構造は、地下に掘削された高圧ガス貯蔵地下空洞部内
周面に、吹付けコンクリートによる１次支保を層着し、
同１次支保の内周面に、円周方向に分割された鉄筋コン
クリートセグメントを配設し、同セグメントの内周面
に、山型彎曲部を有する金属製シートを配設するととも
に、同シート継手部外周面にＴ字型治具の水平部片を溶
接し、同Ｔ字型治具の垂直部片を遊嵌するボルトを相隣
る前記セグメントに可摺動的に挿貫して先端部を、緊締
するとともに、前記ボルトの頭部片と前記セグメントに
おけるボルト貫通部との間に弾機を介装して構成されて
いる。In order to achieve the above object, a lining joint structure for a high-pressure gas storage underground cavity according to the present invention is provided by spraying concrete onto an inner peripheral surface of a high-pressure gas storage underground cavity excavated underground. Layered primary support by
A reinforced concrete segment divided in the circumferential direction is provided on the inner peripheral surface of the primary support, and a metal sheet having a chevron-shaped curved portion is provided on the inner peripheral surface of the segment. A horizontal piece of a T-shaped jig is welded to the outer peripheral surface of the T-shaped jig, and a bolt for loosely fitting a vertical piece of the T-shaped jig is slidably inserted into the adjacent segment to thereby form a tip. And an elastic machine is interposed between the head piece of the bolt and the bolt penetrating portion of the segment.
【０００６】[0006]
【作用】本発明は前記したように、高圧ガス貯蔵地下空
洞部内周面に層着した１次支保の内周面に、円周方向に
分割された鉄筋コンクリートセグメントを配設するとと
もに、同セグメント内周面には、伸縮による変形を吸収
する山型彎曲部を有する金属製シートが配設されたこと
によって前記空洞の気密が保持され、また前記金属製シ
ートの内部にＴ字型治具の水平部片を溶接するととも
に、同Ｔ字型治具の垂直部片と相隣る前記セグメントに
可摺動的に遊嵌されたボルトの頭部片と前記セグメント
におけるボルト貫通部との間に弾機を介装したことと相
俟って、貯蔵ガスによる内圧の変化に追随して金属製シ
ートが伸縮し、前記空洞部の内圧の変化による繰り返し
荷重に伴う疲労荷重による疲労破壊、及び一定の内圧に
よる引張応力の低減を防止することができる。更に気密
ライニングの施工性も良く、点検時等の内圧が０ｋｇ／
ｃｍ2 の時の気密ライニング材の保持機能も具備される
ものである。As described above, according to the present invention, a reinforced concrete segment divided in the circumferential direction is disposed on the inner peripheral surface of the primary support layered on the inner peripheral surface of the high-pressure gas storage underground cavity. Airtightness of the cavity is maintained by disposing a metal sheet having a chevron-shaped curved portion that absorbs deformation due to expansion and contraction on the peripheral surface, and a horizontal T-shaped jig is provided inside the metal sheet. In addition to welding the pieces, a spring is inserted between the head piece of the bolt slidably and loosely fitted to the vertical piece of the T-shaped jig and the adjacent segment and the bolt penetrating portion of the segment. The metal sheet expands and contracts in accordance with the change in internal pressure due to the stored gas, combined with the interposition of the machine, and the fatigue fracture due to the fatigue load accompanying the repeated load due to the change in the internal pressure of the cavity, and the constant Reduction of tensile stress by internal pressure It is possible to prevent. Furthermore, the workability of the airtight lining is good, and the internal pressure at the time of inspection etc. is 0 kg /
It also has a function of holding the airtight lining material at the time of cm 2 .
【０００７】[0007]
【実施例】以下本発明を図示の実施例について説明す
る。Ａは地下岩盤に掘削された高圧ガス貯蔵地下空洞部
で、同空洞部内周面に吹付けコンクリートによる１次支
保１を施工し、その内側に円周方向に分割された弧状の
鉄筋コンクリートセグメント２を設置し、同各セグメン
ト２の内周に山型彎曲部３ａが曲成された金属製シート
３を現場溶接によって配設するとともに、同金属製シー
ト３の継手部外周にＴ字型治具４の水平部片４ａを溶着
する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. A is a high-pressure gas storage underground cavity excavated in an underground bedrock, a primary support 1 of shotcrete is constructed on the inner peripheral surface of the cavity, and an arc-shaped reinforced concrete segment 2 divided in a circumferential direction is provided inside the primary support 1. A metal sheet 3 having an angled curved portion 3a bent on the inner periphery of each segment 2 is disposed by field welding, and a T-shaped jig 4 is attached to the outer periphery of the joint portion of the metal sheet 3. Is welded.
【０００８】更に同Ｔ字型治具４の垂直部片４ｂと、相
隣る前記セグメント２，２の対向面に設けられた各角筒
状部２ａに亘ってボルト５を遊嵌し、同ボルト５の先端
ねじ部にナット６を螺着して一方のセグメント２の角筒
状部２ａに圧締し、前記ボルト５の頭部鍔片７と前記一
方のセグメントと対向する他方のセグメント２の角筒状
部２との間に弾機８が介装されている。Further, a bolt 5 is loosely fitted over the vertical piece 4b of the T-shaped jig 4 and each of the rectangular tubular portions 2a provided on the opposing surfaces of the adjacent segments 2, 2. A nut 6 is screwed into a tip screw portion of the bolt 5 and pressed against a rectangular tubular portion 2a of one segment 2 to form a head flange piece 7 of the bolt 5 and the other segment 2 facing the one segment. A bullet 8 is interposed between the rectangular cylinder 2 and the rectangular cylinder 2.
【０００９】なお縦断方向の金属製シート３の継手につ
いては突起を設けない通常の溶接とする。図示の実施例
は前記したように構成されているので、高圧ガス貯蔵地
下空洞部Ａの貯蔵ガスの内圧が変化する場合、前記金属
製シート３の山型彎曲部３ａが伸縮するとともに、前
記、相隣る鉄筋コンクリートセグメント２の円周方向に
働く力が、ボルト５に沿う摺動と弾機８による弾性によ
って緩衝され、前記貯蔵ガスによる前記空洞部Ａの内圧
の変動が吸収される。The joint of the metal sheet 3 in the longitudinal direction is a normal welding without a projection. Since the illustrated embodiment is configured as described above, when the internal pressure of the stored gas in the high-pressure gas storage underground cavity A changes, the chevron curved portion 3a of the metal sheet 3 expands and contracts, and The force acting on the adjacent reinforced concrete segments 2 in the circumferential direction is buffered by the sliding along the bolt 5 and the elasticity of the elastic machine 8, and the fluctuation of the internal pressure of the cavity A due to the stored gas is absorbed.
【００１０】[0010]
【発明の効果】本発明によれば前記したように、高圧ガ
ス貯蔵地下空洞部内周面に層着された１次支保の内周
に、円周方向に分割された鉄筋コンクリートセグメント
を配設し、セグメントの内周に山型彎曲部が曲成された
金属製シートを配設し、同シートの内部に溶接したＴ字
型治具の垂直部片と、相隣る前記セグメントに可摺動的
に遊嵌されたボルトを緊締するとともに、同ボルトの頭
部片と、前記セグメントとの間に弾機を介装したことに
よって、前記空洞部の内圧の変動に対応して前記セグメ
ント及び金属製シートの変形を可能ならしめ、ライニン
グの疲労破壊を防止するとともに、内圧のない場合も前
記空洞の気密性を保持しうるようにし、高圧ガス貯蔵地
下空洞における信頼性の高いライニング構造を構成しう
るものである。According to the present invention, as described above, circumferentially divided reinforced concrete segments are disposed on the inner periphery of the primary support layered on the inner peripheral surface of the high-pressure gas storage underground cavity, A metal sheet having an angled curved portion is disposed on the inner periphery of the segment, and a vertical piece of a T-shaped jig welded to the inside of the sheet and the adjacent segment are slidable. By tightening the bolt loosely fitted in the segment, and by interposing an elastic machine between the head piece of the bolt and the segment, the segment and the metal The deformation of the sheet is made possible, and the fatigue rupture of the lining is prevented, and the airtightness of the cavity can be maintained even when there is no internal pressure, so that a highly reliable lining structure in the high-pressure gas storage underground cavity can be constituted. Things.
【図１】本発明に係る高圧ガス貯蔵地下空洞の斜視図で
ある。FIG. 1 is a perspective view of a high-pressure gas storage underground cavity according to the present invention.
【図２】図１のイ部の拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a portion A in FIG.
Ａ 高圧ガス貯蔵地下空洞部 １ １次支保 ２ 鉄筋コンクリートセグメント ２ａ 角筒状部 ３ 金属製シート ３ａ 山型彎曲部 ４ Ｔ字型治具 ４ａ 水平部片 ４ｂ 垂直部片 ５ ボルト ６ ナット ７ ボルトの頭部鍔片 ８ 弾機 A High-pressure gas storage underground cavity 1 Primary support 2 Reinforced concrete segment 2a Square tubular portion 3 Metal sheet 3a Angled curved portion 4 T-shaped jig 4a Horizontal piece 4b Vertical piece 5 Bolt 6 Nut 7 Nut head 8 pieces
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−6074（ＪＰ，Ａ) 実開 昭55−161993（ＪＰ，Ｕ) 特公 昭47−50808（ＪＰ，Ｂ１) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-6074 (JP, A) JP-A 55-161993 (JP, U) JP-B 47-50808 (JP, B1)
Claims (1)
部内周面に、吹付けコンクリートによる１次支保を層着
し、同１次支保の内周面に、円周方向に分割された鉄筋
コンクリートセグメントを配設し、同セグメントの内周
面に、山型彎曲部を有する金属製シートを配設するとと
もに、同シート継手部外周面にＴ字型治具の水平部片を
溶接し、同Ｔ字型治具の垂直部片を遊嵌するボルトを相
隣る前記セグメントに可摺動的に挿貫して先端部を、緊
締するとともに、前記ボルトの頭部片と前記セグメント
におけるボルト貫通部との間に弾機を介装してなること
を特徴とする高圧ガス貯蔵地下空洞のライニングの継手
構造。1. A primary support made of shotcrete is layered on an inner peripheral surface of a high-pressure gas storage underground cavity excavated underground, and reinforced concrete divided circumferentially on an inner peripheral surface of the primary support. A segment is disposed, a metal sheet having a chevron-shaped curved portion is disposed on an inner peripheral surface of the segment, and a horizontal piece of a T-shaped jig is welded to an outer peripheral surface of the seat joint portion. A bolt for loosely fitting a vertical piece of the T-shaped jig is slidably inserted into the adjacent segment to tighten the tip, and a bolt piece is inserted through the head piece of the bolt and the segment. A joint structure for a lining of a high-pressure gas storage underground cavity, characterized in that an ammunition is interposed between the lining and a part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4297159A JP2742973B2 (en) | 1992-11-06 | 1992-11-06 | Joint structure of lining of high-pressure gas storage underground cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4297159A JP2742973B2 (en) | 1992-11-06 | 1992-11-06 | Joint structure of lining of high-pressure gas storage underground cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06144485A JPH06144485A (en) | 1994-05-24 |
| JP2742973B2 true JP2742973B2 (en) | 1998-04-22 |
Family
ID=17842958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4297159A Expired - Fee Related JP2742973B2 (en) | 1992-11-06 | 1992-11-06 | Joint structure of lining of high-pressure gas storage underground cavity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2742973B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116517599A (en) * | 2023-05-10 | 2023-08-01 | 中国葛洲坝集团勘测设计有限公司 | A prefabricated asphalt steel lining structure and construction method specially used for high-pressure gas storage chambers |
| CN116677905B (en) * | 2023-05-12 | 2025-06-20 | 中冶武勘工程技术有限公司 | Assembled lining type compressed gas energy storage for abandoned rock caves and construction method thereof |
-
1992
- 1992-11-06 JP JP4297159A patent/JP2742973B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06144485A (en) | 1994-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |