JPS63304802A - Waterproof and vibrationproof construction method of track slab - Google Patents
Waterproof and vibrationproof construction method of track slabInfo
- Publication number
- JPS63304802A JPS63304802A JP14117487A JP14117487A JPS63304802A JP S63304802 A JPS63304802 A JP S63304802A JP 14117487 A JP14117487 A JP 14117487A JP 14117487 A JP14117487 A JP 14117487A JP S63304802 A JPS63304802 A JP S63304802A
- Authority
- JP
- Japan
- Prior art keywords
- urethane
- waterproof
- slab
- construction method
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims description 13
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000004078 waterproofing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- -1 urethane compound Chemical class 0.000 claims description 8
- 239000002075 main ingredient Substances 0.000 claims description 2
- 238000001723 curing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical group 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000003863 metallic catalyst Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013008 moisture curing Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004591 urethane sealant Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Machines For Laying And Maintaining Railways (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、高架型の軌道スラブの防水防振工法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a method for waterproofing and vibration-proofing elevated track slabs.
［従来技術とその問題点１
近年、都市人口の集中増加にイ↑ない輸送量の確保が急
務となっているが新設路線用の土地確保の困難性、騒音
公害の防止、交通渋滞の緩和等の理由から高架型の軌道
が多く建設されている。[Conventional technology and its problems 1] In recent years, there has been an urgent need to secure sufficient transport capacity due to the increasing concentration of urban population, but it is difficult to secure land for new routes, prevent noise pollution, alleviate traffic congestion, etc. For this reason, many elevated tracks are being constructed.
しかしながら、コンクリート製の高架型軌道スラブは、
コンクリート硬化時の乾燥収縮等によりひび割れが発生
し、長い年月による気候的寒暖の変動により、これらの
ひび割れは更に大きくなる。However, elevated concrete track slabs
Cracks occur due to drying shrinkage during concrete hardening, and these cracks become even larger due to climatic temperature fluctuations over time.
スラブのひび割れ、毛細空隙お上りノライント部の亀裂
等を通して浸透してくる雨水は、コンクリートの中性化
や鉄筋の腐食の進行を早め、構造物の耐用年数を短くす
るだけでなく、漏水問題を引き起こしている。Rainwater that permeates through cracks in the slab, cracks in the capillary openings, etc., accelerates the neutralization of concrete and the corrosion of reinforcing bars, shortens the service life of the structure, and also reduces the problem of water leakage. It's causing it.
また、近年鉄道車両の大型化、高速化や走行ダイヤの過
密化に伴なって発生する騒音・振動等が付近住民の公害
問題となっている。Additionally, in recent years, as railway vehicles have become larger and faster, and train schedules have become more congested, the noise and vibrations generated have become a pollution problem for nearby residents.
［発明の目的１
本発明は、上記従来の問題点を解決するためになされた
もので、その目的とするところは、施工ＩＬ′を間が短
くて、仮設工事や保護モルタルが不要となり、防水性能
および防振性能に優れた軌道スラブの防水防振工法を提
供することにある。[Objective of the Invention 1 The present invention was made in order to solve the above-mentioned conventional problems, and its purpose is to shorten the construction time, eliminate the need for temporary construction and protective mortar, and improve waterproofing. The purpose of the present invention is to provide a waterproof and anti-vibration construction method for track slabs with excellent performance and anti-vibration performance.
［発明の構成１
本発明の軌道スラブの防水防振工法は、道床バラストを
撤去し、スラブ上面を清掃乾燥し、該スラブ上にウレタ
ンプレポリマーを主剤としウレタンコンパウンドを硬化
剤としたウレタン防水材を所要厚さ１こ塗布または流込
み、硬化後道床バラストを復旧せしめることを特徴とす
るものである。[Structure 1 of the invention] The track slab waterproofing and vibration-proofing construction method of the present invention involves removing the track bed ballast, cleaning and drying the top surface of the slab, and applying a urethane waterproofing material containing urethane prepolymer as a main ingredient and a urethane compound as a curing agent onto the slab. The ballast is coated or poured to a required thickness, and after hardening, the track bed ballast is restored.
［天施例１
以下、本発明の軌道スラブの防水防振工法の一実施例に
ついて図面を参照しながら説明する。[Embodiment 1] Hereinafter, an embodiment of the track slab waterproofing and anti-vibration construction method of the present invention will be described with reference to the drawings.
まず、ｔｊＩＪ１図に示すように、必要な工事区間の軌
道スラブ１上の道床バラスト２を撤去する。First, as shown in Figure tjIJ1, the track bed ballast 2 on the track slab 1 in the required construction section is removed.
道床バラスト２を撤去したら、スラブ１の表面に付着し
でいる塵埃、砂、鉄Ｍ′！？を清掃除去すると共に油等
があれば脱脂しておく。After removing the trackbed ballast 2, the dust, sand, and iron M' that had adhered to the surface of the slab 1! ? Clean and remove any oil, etc., if present.
また、スラブ１表面のレイタンス、脆弱部分はケレン棒
、サンダー掛等で除去する。スラブ１に発生したひび割
れは、その程度によりウレタンシーリング材をシーリン
グガンにより充填しておく。In addition, laitance and weak parts on the surface of the slab 1 are removed using a scraper, sander, etc. Cracks that occur in the slab 1 are filled with urethane sealant using a sealing gun depending on the severity.
続いて、表面が十分乾燥していることを確認してから、
下地への密着性を良くするために、例えばウレタン基液
湿気硬化型のプライマーを０．２ｋｇ／ＩＩ２で吹き付
は又は刷毛で塗布する。Next, make sure the surface is sufficiently dry, and then
In order to improve adhesion to the substrate, for example, a urethane-based moisture-curing primer is applied at 0.2 kg/II2 by spraying or brushing.
プライマー塗布後、３０分以上５時間以内に、第２図に
示すように、ウレタン防水材３を所要厚み（例えば約１
〜２５Ｉ）となるように、金ゴテ、ゴムベラ、刷毛等を
使用して均一に塗布する。After applying the primer, apply the urethane waterproof material 3 to the required thickness (for example, about 1
Apply it evenly using a metal trowel, rubber spatula, brush, etc. so that it becomes 25I).
ウレタン防水材３としでは、主剤として末端イソシアネ
ートのウレタンプレポリマーと、硬化剤としてウレタン
コンパウンドを混合して使用する。The urethane waterproofing material 3 uses a mixture of a urethane prepolymer with terminal isocyanate as the main component and a urethane compound as a curing agent.
該ウレタンコンパウンドの処方例としては、ポリオール
１５％、特殊アミン（ジアミノジフェニルメタン系アミ
ン）５％、可塑剤１０％、アスファルト系液状石油ピッ
チ３５％、充填剤３０％、触媒（金属系触媒）・安定剤
５％を混合して作る。硬化時間の、ｉ［は、主として上
記特殊アミンと触媒の量により行なう。An example of the formulation of the urethane compound is 15% polyol, 5% special amine (diaminodiphenylmethane amine), 10% plasticizer, 35% asphalt-based liquid petroleum pitch, 30% filler, catalyst (metallic catalyst) and stabilizer. It is made by mixing 5% of the agent. The curing time i[ is determined mainly by the amounts of the above-mentioned special amine and catalyst.
上記ウレタンプレポリマーとウレタンコンパウンドの混
合割合は、重量比で１：１〜１：１．３とする。The mixing ratio of the urethane prepolymer and the urethane compound is 1:1 to 1:1.3 by weight.
次に、上記ウレタンプレポリマーおよびウレタンコンパ
ウンドの一例の物性および得られるウレタン防水材３の
物性を第１Ｊ！２に、そのシート物性を第２表にそれぞ
れ示す。Next, the physical properties of the above-mentioned urethane prepolymer and urethane compound as well as the physical properties of the obtained urethane waterproofing material 3 are described in the first J! Table 2 shows the physical properties of the sheet.
ｐｔＳ１表
第２表
ウレタン防水材３の塗布が終了して硬化したら、第３図
に示すように、道床バラスト２を復旧して作業を完了す
る。ptS1 Table 2 When the coating of the urethane waterproofing material 3 is completed and hardened, the track bed ballast 2 is restored as shown in FIG. 3 to complete the work.
本発明工法によれば、ウレタン防水材３の塗布または流
込みによりコンクリートと完全に密着するので、スラブ
１の継目部分の水の回り込みがなく、第４図に示すよう
に、在米工法のシート防水ように毛細管現象等による漏
水が防止される。According to the construction method of the present invention, the coating or pouring of the urethane waterproofing material 3 completely adheres to the concrete, so there is no water leakage around the joints of the slab 1, and as shown in FIG. As with waterproofing, water leakage due to capillary action is prevented.
［発明の効果１
（１）夜間の短時間で施工ができる。従って、始発運行
に支障がない。[Effect of the invention 1 (1) Construction can be done in a short time at night. Therefore, there is no problem with the first train running.
（２）軌道受桁等の仮設工事が不要である。(2) Temporary construction work such as track support girders is not required.
（３）本発明工法に使用するウレタン防水材は、防水性
に優れている。従って保護モルタルが不要である。また
、伸びが大きくクラックに対する追従性も大であり、コ
ンクリート、砂利、木等との付着性が強い。(3) The urethane waterproof material used in the construction method of the present invention has excellent waterproof properties. Therefore, no protective mortar is required. In addition, it has high elongation, good followability to cracks, and strong adhesion to concrete, gravel, wood, etc.
（４）硬化時間が選択でき、常温で硬化する（５）２液
混合であるため、品質管理と施工性に優れている。(4) Curing time can be selected and cures at room temperature. (5) Since it is a two-part mixture, quality control and workability are excellent.
（６）厚塗りができる。(6) Can be applied thickly.
（７）道床バラストの下に防振マットが形成されて騒音
や振動を効果的に低減することができ上記防水層と兼用
できる。(7) A vibration-proof mat is formed under the track bed ballast, which can effectively reduce noise and vibration, and can also be used as the above-mentioned waterproof layer.
（８）高架床板との接着性が良いので、在米の防水層に
比べ、水の廻り込みがない。(8) It has good adhesion to elevated floorboards, so compared to American waterproof layers, there is no water seepage.
（９）劣化したスラブのクラック内にウレタン防水材が
浸透してより完全な防水となる。(9) The urethane waterproofing material penetrates into the cracks of the deteriorated slab, resulting in more complete waterproofing.
第１図は〜第３図本発明工法を順次説明する断面図、第
４図は高架継目の防水効果を示す断面図である。
１・・・軌道スラブ、２・・・道床パラスト、３・・・
ウレタン防水材。FIGS. 1 to 3 are cross-sectional views sequentially explaining the construction method of the present invention, and FIG. 4 is a cross-sectional view showing the waterproofing effect of elevated joints. 1... Track slab, 2... Track bed parast, 3...
Urethane waterproof material.
Claims (1)
ラブ上にウレタンプレポリマーを主剤としウレタンコン
パウンドを硬化剤としたウレタン防水材を所要厚さに塗
布または流し込み、硬化後道床バラストを復旧せしめる
ことを特徴とする軌道スラブの防水防振工法。Remove the trackbed ballast, clean and dry the top surface of the slab, apply or pour a urethane waterproofing material containing urethane prepolymer as the main ingredient and urethane compound as a hardening agent onto the slab to the required thickness, and restore the trackbed ballast after curing. A waterproof and anti-vibration construction method for track slabs featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14117487A JPS63304802A (en) | 1987-06-05 | 1987-06-05 | Waterproof and vibrationproof construction method of track slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14117487A JPS63304802A (en) | 1987-06-05 | 1987-06-05 | Waterproof and vibrationproof construction method of track slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63304802A true JPS63304802A (en) | 1988-12-13 |
Family
ID=15285864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14117487A Pending JPS63304802A (en) | 1987-06-05 | 1987-06-05 | Waterproof and vibrationproof construction method of track slab |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63304802A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032483A (en) * | 1973-07-27 | 1975-03-29 | ||
| JPS5562987A (en) * | 1978-11-06 | 1980-05-12 | Dai Ichi Kogyo Seiyaku Co Ltd | Urethane-based waterproof material |
-
1987
- 1987-06-05 JP JP14117487A patent/JPS63304802A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032483A (en) * | 1973-07-27 | 1975-03-29 | ||
| JPS5562987A (en) * | 1978-11-06 | 1980-05-12 | Dai Ichi Kogyo Seiyaku Co Ltd | Urethane-based waterproof material |
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