JP2003269098A - Joint structure of tunnel fire-resisting material - Google Patents
Joint structure of tunnel fire-resisting materialInfo
- Publication number
- JP2003269098A JP2003269098A JP2002073852A JP2002073852A JP2003269098A JP 2003269098 A JP2003269098 A JP 2003269098A JP 2002073852 A JP2002073852 A JP 2002073852A JP 2002073852 A JP2002073852 A JP 2002073852A JP 2003269098 A JP2003269098 A JP 2003269098A
- Authority
- JP
- Japan
- Prior art keywords
- reflecting material
- joint
- tunnel
- heat
- heat reflecting
- 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.)
- Granted
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、セグメント等によ
って構築されたトンネルの内壁面に施される耐火構造に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof structure applied to an inner wall surface of a tunnel constructed by segments or the like.
【０００２】[0002]
【従来技術】トンネル内壁構造において、二次覆工は仕
上げ、防水、耐火の役割を担っているが、トンネル施工
技術の向上により仕上げ、防水の役割については軽減さ
れている。そこで、二次覆工を省略し一次覆工表面に耐
火材を取付け、坑内火災が発生した場合の一次覆工の損
傷を二次覆工に変わって耐火材が防止するという工法が
行われている。2. Description of the Related Art In a tunnel inner wall structure, the secondary lining plays a role of finishing, waterproofing, and fire resistance, but the role of finishing and waterproofing has been reduced by improving tunnel construction technology. Therefore, a construction method is used in which the secondary lining is omitted and a refractory material is attached to the surface of the primary lining, and damage to the primary lining in the event of a mine fire is replaced by the secondary lining and the refractory material is prevented. There is.
【０００３】図４に従来の一次覆工表面に耐火材を取付
ける工法を示す。図４において１は、トンネル一次覆工
である。２は、該一次覆工に取付けられる耐火板であ
る。該耐火板間の目地部３は目地の開きが３mm以上とな
る場合があった。FIG. 4 shows a method of attaching a refractory material to the surface of a conventional primary lining. In FIG. 4, reference numeral 1 is the primary lining of the tunnel. Reference numeral 2 is a fireproof plate attached to the primary lining. The joint part 3 between the refractory plates sometimes had a joint opening of 3 mm or more.
【０００４】耐火材としては、セラミックス、セメン
ト、石膏、珪酸カルシウム等の耐火難燃性材料を板状に
成形した耐火板が用いられている。As the refractory material, there is used a fire-resistant plate obtained by molding a fire-retardant material such as ceramics, cement, gypsum and calcium silicate into a plate shape.
【０００５】しかしながら、この耐火板を用いた従来の
トンネル耐火構造には以下に説明する技術的課題があっ
た。However, the conventional tunnel fireproof structure using this fireproof plate has the following technical problems.
【０００６】[0006]
【発明が解決しようとする課題】トンネル一次覆工内壁
面のように面積の大きな場所へ耐火材を施工する場合、
耐火板を施工することは施工効率、耐火材厚み制御等に
関して優れた方法である。しかし、製作精度および施工
精度から沈埋トンネル、開削トンネルのような平坦な面
を有する覆工面への施工においても、耐火板間に３ｍｍ
以上の大きな目地の開きが生じる場合があり、そのよう
な場合には一次覆工表面が輻射熱により直接加熱される
ことになる。シールドトンネルや山岳トンネルのような
曲面への施工においては、施工の困難性から更にその目
地の開きが大きくなり、目地部における輻射熱により一
次覆工表面温度が著しく上昇する。[Problems to be Solved by the Invention] When constructing a refractory material in a large area such as the inner wall surface of the primary lining of a tunnel,
Construction of a fire-resistant plate is an excellent method in terms of construction efficiency and control of the thickness of refractory materials. However, due to its manufacturing and construction accuracy, even when it is installed on a lining surface that has a flat surface, such as a submerged tunnel or an excavation tunnel, it is 3 mm
The above large joint opening may occur, and in such a case, the surface of the primary lining is directly heated by radiant heat. In the case of construction on curved surfaces such as shield tunnels and mountain tunnels, due to the difficulty of construction, the opening of the joint becomes larger, and the radiant heat at the joint portion causes the surface temperature of the primary lining to rise significantly.
【０００７】更に、トンネルで想定される火災温度が１
０００℃を超える高温であり、一般に絶対温度の４乗に
比例して増大するといわれている輻射熱による一次覆工
表面への熱伝達が増大するため、耐火板間の目地の開き
がトンネルの耐火構造上の弱点となっている。Furthermore, the fire temperature assumed in the tunnel is 1
Since the temperature is higher than 000 ° C, and the heat transfer to the surface of the primary lining due to radiant heat, which is generally said to increase in proportion to the fourth power of the absolute temperature, increases the joint opening between the fireproof plates and the fireproof structure of the tunnel. It is a weak point above.
【０００８】以上に述べたように、従来の耐火板目地構
造の問題点は、トンネルでの施工では施工精度上並びに
耐火板加工精度上、耐火板間の目地部の開きを小さくす
ることが困難なため、耐火板間の目地部の開きが３ｍｍ
以上となり易く、その場合、耐火板目地部の一次覆工表
面の温度が上昇し、一次覆工が爆裂やひび割れのため強
度が低下し、崩壊してしまう恐れがある。本発明は、か
かる事情を鑑み、耐火板目地部の輻射熱による温度上昇
を防ぎ、一次覆工の強度低下又は強度低下による崩壊を
防ぐことを目的としている。As described above, the problem with the conventional joint structure of the fire-resistant plate is that it is difficult to reduce the opening of the joint between the fire-resistant plates in the construction in the tunnel due to the construction accuracy and the refractory plate processing accuracy. Therefore, the opening of the joint between the fireproof plates is 3mm
The above tends to occur, and in that case, the temperature of the surface of the primary lining of the joint portion of the fireproof plate rises, and the primary lining may explode or crack, resulting in a decrease in strength and a collapse. In view of such circumstances, the present invention has an object to prevent the temperature rise of the joint portion of the fireproof plate due to the radiant heat and to prevent the strength of the primary lining or the collapse due to the strength decrease.
【０００９】[0009]
【課題を解決するための手段】そこで、上記した本発明
の目的を達成すべく鋭意検討の結果、トンネル一次覆工
内壁面に被覆された耐火材間の目地部に於いて、該目地
部の表面あるいは背面の少なくとも片面に熱反射材を固
定した目地構造とすることで達成されることを見出し
た。Therefore, as a result of intensive studies to achieve the above-mentioned object of the present invention, as a result of the joint portion of the refractory material covered on the inner wall surface of the primary tunnel lining, It has been found that this can be achieved by using a joint structure in which a heat reflecting material is fixed on at least one surface or the back surface.
【００１０】すなわち、耐火板目地部の表面あるいは背
面の少なくとも片面に熱反射材を固定することで輻射熱
を反射し、目地部の温度上昇を防ぎ、一次覆工表面の温
度上昇を抑えることができる。That is, by fixing a heat-reflecting material on at least one of the front surface and the back surface of the joint portion of the fireproof plate, radiant heat is reflected, the temperature rise of the joint portion is prevented, and the temperature rise of the primary lining surface can be suppressed. .
【００１１】また、前記熱反射材は複数の穴をすること
が望ましい。Further, it is desirable that the heat reflecting material has a plurality of holes.
【００１２】すなわち、前記熱反射材を複数の穴を有し
ている熱反射材とすることで、火災時に生じる一次覆工
コンクリート等の下地材から発生する水蒸気圧や車両通
行時に発生する動風圧によって熱反射材が剥がれること
を防止することができる。That is, when the heat reflecting material is a heat reflecting material having a plurality of holes, the water vapor pressure generated from the base material such as the primary lining concrete or the dynamic wind pressure generated when the vehicle is passing during a fire. This can prevent the heat reflecting material from peeling off.
【００１３】更には、前記熱反射材は、前記複数の穴に
よる開口率が５〜３５％の熱反射材であることが望まし
い。Further, it is preferable that the heat reflecting material is a heat reflecting material having an aperture ratio of 5 to 35% by the plurality of holes.
【００１４】すなわち、複数の穴を有する前記熱反射材
をこれらの穴による開口率が５〜３５％の熱反射材とす
ることで、耐火板目地部における輻射熱による一次覆工
表面温度の上昇を３５０℃以下に抑え、一次覆工の強度
低下を防ぐことができると共に水蒸気圧や動風圧による
熱反射材の剥がれを防止することができる。That is, by using the heat reflecting material having a plurality of holes as a heat reflecting material having an aperture ratio of 5 to 35% by these holes, the surface temperature of the primary lining due to radiant heat in the joint portion of the fireproof plate is increased. By suppressing the temperature to 350 ° C. or lower, it is possible to prevent a decrease in the strength of the primary lining and to prevent the heat reflecting material from peeling off due to steam pressure or dynamic wind pressure.
【００１５】[0015]
【発明の実施の形態】以下に本発明の具体的内容を図に
基づいて詳しく説明する。図１〜図３は本発明のトンネ
ル耐火材の目地構造の実施形態の概略図である。図１〜
図３において１は、コンクリートセグメントにより構築
されたトンネル一次覆工である。２は、トンネル一次覆
工１表面に被覆固着される耐火板である。耐火板２の材
質、構造は限定されない。３は、耐火板２間の目地部で
ある。４は耐火板２間の目地部３に固定された熱反射材
である。５は、耐火板２間の目地部３に固定された穴あ
き熱反射材である。BEST MODE FOR CARRYING OUT THE INVENTION The specific contents of the present invention will be described below in detail with reference to the drawings. 1 to 3 are schematic views of an embodiment of a joint structure of a tunnel refractory material of the present invention. Figure 1
In FIG. 3, 1 is a primary tunnel lining constructed by concrete segments. Reference numeral 2 is a fireproof plate that is adhered to the surface of the primary tunnel lining 1 by coating. The material and structure of the fireproof plate 2 are not limited. 3 is a joint between the fireproof plates 2. Reference numeral 4 is a heat reflecting material fixed to the joint portion 3 between the fireproof plates 2. Reference numeral 5 is a perforated heat reflection material fixed to the joint portion 3 between the fireproof plates 2.
【００１６】本発明は、耐火板２の目地構造において図
１から図３に示すように耐火板２の目地部３の表面もし
くは背面の少なくとも片面に熱反射材４または５を耐火
板２間に固定する形態での目地構造とすることで、耐火
板２間の目地部３の輻射熱による温度上昇を抑制し、目
地部３における一次覆工の爆裂やひび割れを防止するこ
とができる。熱反射材４または５の耐火材２の目地部３
への固定方法については特に限定しない。一例として
は、熱反射材４または５を耐火板２表面に鋲止めする方
法、目地部３の一次覆工表面に接着剤等で固着する方法
等がある。In the joint structure of the refractory plate 2, the present invention is provided with a heat-reflecting material 4 or 5 between the refractory plates 2 on at least one surface of the joint portion 3 of the refractory plate 2 as shown in FIGS. 1 to 3. By using the joint structure in the fixed form, it is possible to suppress the temperature rise of the joint portion 3 between the fireproof plates 2 due to the radiant heat and prevent the explosion or crack of the primary lining in the joint portion 3. Joint 3 of refractory material 2 of heat-reflecting material 4 or 5
There is no particular limitation on the method of fixing to. As an example, there are a method of tacking the heat reflecting material 4 or 5 on the surface of the fireproof plate 2 and a method of fixing it on the surface of the primary lining of the joint portion 3 with an adhesive or the like.
【００１７】また、図２、図３に示すように前記熱反射
材４を複数の穴を有している穴あき熱反射材５とするこ
とで、火災時に生じる一次覆工コンクリート等の下地材
から発生する水蒸気圧や車両通行時に発生する動風圧に
よって熱反射材５が剥がれることを防止することができ
る。As shown in FIGS. 2 and 3, the heat reflecting material 4 is a perforated heat reflecting material 5 having a plurality of holes, so that a base material such as primary lining concrete generated in a fire is generated. It is possible to prevent the heat reflection material 5 from peeling off due to the water vapor pressure generated from the vehicle or the dynamic wind pressure generated when the vehicle is passing.
【００１８】更には、複数の穴を有する該熱反射材５を
これら複数の穴による開口率が５〜３５％の熱反射材５
とすることで、耐火板２間の目地部３における輻射熱に
よる一次覆工１表面温度の上昇を３５０℃以下に抑制す
ると共に、水蒸気圧や動風圧による熱反射材５の剥がれ
防止効果が効率的に発揮される。なお、熱反射材５の穴
の形状は特に限定されないが、一つの穴の面積としては
７．８×１０-3〜４０ｍｍ2が望ましい。Further, the heat reflecting material 5 having a plurality of holes is provided with an aperture ratio of 5 to 35% by the plurality of holes.
As a result, the rise of the surface temperature of the primary lining 1 due to radiant heat in the joints 3 between the fireproof plates 2 is suppressed to 350 ° C. or less, and the peeling-off effect of the heat reflecting material 5 due to steam pressure or dynamic wind pressure is efficient. To be demonstrated. The shape of the holes of the heat reflecting material 5 is not particularly limited, but the area of one hole is preferably 7.8 × 10 −3 to 40 mm 2 .
【００１９】ここに、熱反射材４又は５としては、一般
的に金、白金、ステンレス、アルミニウム、銅、モリブ
デン、ニッケル等があり、シート状又は薄板のものが望
ましい。また、耐火板２とは、加圧成形法、抄造成形法
等一般的な製法にて製造された、セラミック系、珪酸カ
ルシウム系、セメント系および石膏系等の材質を有した
ものがあるが、特に材質、構造は限定されない。Here, as the heat reflecting material 4 or 5, there are generally gold, platinum, stainless steel, aluminum, copper, molybdenum, nickel and the like, and a sheet or thin plate is preferable. Further, the fire-resistant plate 2 may be made of a ceramic-based material, a calcium silicate-based material, a cement-based material, a gypsum-based material, or the like, which is manufactured by a general manufacturing method such as a pressure molding method or a papermaking molding method. The material and structure are not particularly limited.
【００２０】[0020]
【実施例】表１のように珪酸カルシウム製の耐火板（寸
法６５０×１３００ｍｍ、厚み２５ｍｍ）による目地部
に、熱反射材を固定した実施例と固定しない比較例を作
製し、耐火試験および動風圧繰返し試験を実施した。熱
反射材４又は５は幅３ｃｍ、厚み０．５ｍｍのステンレ
ス製薄板を用い、耐火板の目地部に鋲止めした。また、
熱反射材５の穴は、直径４ｍｍの円形の穴を、表１の開
口率となるようにあけたものを用いた。[Example] As shown in Table 1, an example in which a heat reflecting material was fixed to a joint portion of a fireproof plate made of calcium silicate (dimensions 650 x 1300 mm, thickness 25 mm) and a comparative example in which the heat reflecting material was not fixed were prepared, and a fire resistance test and dynamic A wind pressure repetition test was carried out. As the heat reflecting material 4 or 5, a stainless steel thin plate having a width of 3 cm and a thickness of 0.5 mm was used, and was fastened to the joint portion of the fireproof plate by tacking. Also,
As the hole of the heat reflecting material 5, a circular hole having a diameter of 4 mm was drilled so as to have the aperture ratio shown in Table 1.
【００２１】耐火試験においては、ドイツ交通省道路建
設部が規定しているRABT加熱曲線に準じ、５分間で１２
００℃温度上昇、その後５５分間１２００℃保持、そし
て１１０分間にて常温まで冷却するという、急速高温加
熱、徐冷条件にて実施した。その際、熱反射材のはがれ
の目視観察および耐火板目地部の一次覆工表面温度を予
め耐火板の目地部の一次覆工表面に埋め込んだＫ型熱電
対を用いて測定した。一般に一次覆工表面は耐火試験時
に建築構造部材の耐火試験における平均鋼材温度の判定
温度およびコンクリートを爆裂の発生させない目安であ
る３５０℃以下となることが望まれる。In the fire resistance test, according to the RABT heating curve stipulated by the German Ministry of Transport Road Construction Department, it takes 12 minutes in 5 minutes.
The temperature was increased by 00 ° C., the temperature was maintained at 1200 ° C. for 55 minutes, and the temperature was cooled to room temperature for 110 minutes. At that time, the peeling of the heat reflecting material was visually observed and the temperature of the primary lining surface of the joint portion of the fireproof plate was measured using a K-type thermocouple which was embedded in advance in the surface of the primary lining portion of the joint portion of the fireproof plate. In general, it is desired that the surface of the primary lining is determined to be the average steel material temperature in the fire resistance test of building structural members during the fire resistance test and 350 ° C. or less which is a criterion for preventing the explosion of concrete.
【００２２】また、動風圧疲労試験においては、ドイツ
交通省道路建設部が規定しているZTV-Tunnel Tail１に
準じて、±３kPaの動風圧の１００万回繰返し行い、熱
反射材のはがれの目視観察を実施した。Further, in the dynamic wind pressure fatigue test, according to ZTV-Tunnel Tail 1 specified by the German Ministry of Transport Road Construction Department, the dynamic wind pressure of ± 3 kPa was repeated 1,000,000 times, and the peeling of the heat reflecting material was visually observed. Observations were made.
【００２３】[0023]
【表１】 [Table 1]
【００２４】表１に示す試験結果より、耐火板間の目地
部に熱反射板を固定した本発明のトンネル耐火材の目地
構造は、火災時の耐火板間の目地部における輻射熱の反
射性に優れ、一次覆工表面の温度上昇抑制効果を有する
ことが理解される。From the test results shown in Table 1, the joint structure of the tunnel refractory material of the present invention, in which the heat reflection plate is fixed to the joint portion between the fireproof plates, shows the radiant heat reflectivity in the joint portion between the fireproof plates at the time of fire. It is understood that it is excellent and has the effect of suppressing the temperature rise on the surface of the primary lining.
【００２５】特に熱反射材が複数の穴を有し、その穴に
よる開口率が５〜３５％である場合には、一次覆工表面
温度は３５０℃以下に保たれると共に、一次覆工材から
の水蒸気圧や車両通行時の動風圧に対する剥がれ防止効
果を有することが理解される。In particular, when the heat reflecting material has a plurality of holes and the opening ratio of the holes is 5 to 35%, the surface temperature of the primary lining is kept at 350 ° C. or lower and the primary lining material is It is understood that it has the effect of preventing peeling against steam pressure from the vehicle and dynamic wind pressure when the vehicle is passing.
【００２６】その一次覆工表面の温度上昇抑制効果とし
ては、耐火板間の目地の開き３mmとし、該目地部に熱反
射板を固定しない場合と比較して、本発明のトンネル耐
火板の目地構造は、一次覆工表面温度を３４℃〜９５℃
低減できることが理解される。As for the effect of suppressing the temperature rise on the surface of the primary lining, the joint of the tunnel fireproof plate of the present invention is compared with the case where the joint between the fireproof plates is opened to 3 mm and the heat reflection plate is not fixed to the joint part. The structure has a primary lining surface temperature of 34 ° C to 95 ° C.
It is understood that it can be reduced.
【００２７】[0027]
【発明の効果】本発明によれば、トンネル一次覆工内壁
面に配設された耐火板間の目地部において、該目地の表
面あるいは背面の少なくとも片側に熱反射材が固定した
目地構造とすること、また、該熱反射材を複数の穴を有
している熱反射材とすること、更には、複数の穴を有す
る該熱反射材を、穴による開口率が５〜３５％の熱反射
材とすることで、耐火板目地部における輻射熱による一
次覆工表面温度の上昇抑制効果と水蒸気圧や動風圧によ
る熱反射材の剥がれ防止効果が効率的に発揮され、トン
ネル構造体である一次覆工の耐火性を改善することがで
きる。EFFECTS OF THE INVENTION According to the present invention, in the joint portion between the refractory plates arranged on the inner wall surface of the primary lining of the tunnel, the joint structure has the heat reflecting material fixed to at least one side of the front surface or the back surface of the joint. In addition, the heat reflection material is a heat reflection material having a plurality of holes, and further, the heat reflection material having a plurality of holes has a hole reflection ratio of 5 to 35%. By using the material, the effect of suppressing the rise in the surface temperature of the primary lining due to radiant heat at the joints of the fireproof plate and the effect of preventing the heat reflecting material from peeling off due to steam pressure or dynamic wind pressure are efficiently exhibited, and the primary covering that is the tunnel structure The fire resistance of the work can be improved.
【図１】本発明の一実施例を示す目地構造断面図（熱反
射材背面貼付け）。FIG. 1 is a joint structure cross-sectional view showing an embodiment of the present invention (pasted on a back surface of a heat reflecting material).
【図２】本発明の一実施例を示す目地構造断面図（穴あ
き熱反射材表面貼付け）。FIG. 2 is a joint structure sectional view showing one embodiment of the present invention (perforated heat-reflecting material pasted).
【図３】本発明の一実施例を示す目地構造断面図（穴あ
き熱反射材背面貼付け）。FIG. 3 is a cross-sectional view of a joint structure showing one embodiment of the present invention (perforated heat-reflecting material attached to the back surface).
【図４】従来の目地構造。FIG. 4 is a conventional joint structure.
１ 一次覆工 ２ 耐火板 ３ 目地部 ４ 熱反射材 ５ 穴あき熱反射材 1 primary lining 2 Fire plate 3 joints 4 Heat reflector 5 Perforated heat reflector
Claims (3)
火材間の目地部において、該目地部の表面あるいは背面
の少なくとも片面に熱反射材が固定されていることを特
徴とするトンネル耐火材の目地構造。1. A tunnel refractory material, characterized in that, in a joint portion between refractory materials coated on the inner wall surface of the primary lining of the tunnel, a heat reflecting material is fixed to at least one surface of the joint portion on the front surface or the back surface thereof. Joint structure.
とを特徴とする請求項１に記載のトンネル耐火材の目地
構造。2. The joint structure of the tunnel refractory material according to claim 1, wherein the heat reflecting material has a plurality of holes.
率が５〜３５％であることを特徴とする請求項２に記載
のトンネル耐火材の目地構造。3. The joint structure of the tunnel refractory material according to claim 2, wherein an opening ratio of the plurality of holes of the heat reflecting material is 5 to 35%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002073852A JP3910086B2 (en) | 2002-03-18 | 2002-03-18 | Joint structure of tunnel refractory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002073852A JP3910086B2 (en) | 2002-03-18 | 2002-03-18 | Joint structure of tunnel refractory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003269098A true JP2003269098A (en) | 2003-09-25 |
| JP3910086B2 JP3910086B2 (en) | 2007-04-25 |
Family
ID=29203402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002073852A Expired - Fee Related JP3910086B2 (en) | 2002-03-18 | 2002-03-18 | Joint structure of tunnel refractory |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3910086B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006207302A (en) * | 2005-01-31 | 2006-08-10 | Taiheiyo Material Kk | Fire-resistant panel, fire-resistant segment for tunnel, using the same, and highly fire-resistant tunnel |
| JP2006207303A (en) * | 2005-01-31 | 2006-08-10 | Taiheiyo Material Kk | Fire-resistant panel, fire-resistant structure, and fire-resistant tunnel |
| JP2007016445A (en) * | 2005-07-06 | 2007-01-25 | Takiron Co Ltd | Roof structure |
| JP2008297816A (en) * | 2007-05-31 | 2008-12-11 | Nippon Steel Corp | Fire-resistant structure between segments |
| EP3702535A4 (en) * | 2018-01-10 | 2021-07-28 | China State Construction Engineering (Hong Kong) Limited | Fire protection structure applied to segment joint of immersed tunnel and having linear moving mechanism |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118720B (en) * | 2018-01-10 | 2019-07-19 | 中国建筑工程（香港）有限公司 | Immersed tube tunnel tube coupling connector fire proof construction with connection structure |
| CN107956222B (en) * | 2018-01-10 | 2019-07-19 | 中国建筑工程（香港）有限公司 | Immersed tube tunnel tube coupling connector fire proof construction |
-
2002
- 2002-03-18 JP JP2002073852A patent/JP3910086B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006207302A (en) * | 2005-01-31 | 2006-08-10 | Taiheiyo Material Kk | Fire-resistant panel, fire-resistant segment for tunnel, using the same, and highly fire-resistant tunnel |
| JP2006207303A (en) * | 2005-01-31 | 2006-08-10 | Taiheiyo Material Kk | Fire-resistant panel, fire-resistant structure, and fire-resistant tunnel |
| JP2007016445A (en) * | 2005-07-06 | 2007-01-25 | Takiron Co Ltd | Roof structure |
| JP2008297816A (en) * | 2007-05-31 | 2008-12-11 | Nippon Steel Corp | Fire-resistant structure between segments |
| EP3702535A4 (en) * | 2018-01-10 | 2021-07-28 | China State Construction Engineering (Hong Kong) Limited | Fire protection structure applied to segment joint of immersed tunnel and having linear moving mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3910086B2 (en) | 2007-04-25 |
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