KR100556567B1 - Super Strength Urethane Chemical Composition for Soft Ground Freezing - Google Patents
Super Strength Urethane Chemical Composition for Soft Ground Freezing Download PDFInfo
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- KR100556567B1 KR100556567B1 KR1020030059084A KR20030059084A KR100556567B1 KR 100556567 B1 KR100556567 B1 KR 100556567B1 KR 1020030059084 A KR1020030059084 A KR 1020030059084A KR 20030059084 A KR20030059084 A KR 20030059084A KR 100556567 B1 KR100556567 B1 KR 100556567B1
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- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000000126 substance Substances 0.000 title claims abstract description 32
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 230000008014 freezing Effects 0.000 title claims description 3
- 238000007710 freezing Methods 0.000 title claims description 3
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 229920005862 polyol Polymers 0.000 claims abstract description 20
- 150000003077 polyols Chemical class 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 14
- 239000003921 oil Substances 0.000 claims abstract description 10
- -1 isocyanate compound Chemical class 0.000 claims abstract description 8
- 239000008194 pharmaceutical composition Substances 0.000 claims abstract description 7
- 239000004359 castor oil Substances 0.000 claims abstract description 6
- 235000019438 castor oil Nutrition 0.000 claims abstract description 6
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 6
- 239000012948 isocyanate Substances 0.000 claims abstract description 5
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 15
- 239000003054 catalyst Substances 0.000 claims description 12
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 8
- 235000019198 oils Nutrition 0.000 claims description 8
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 150000002009 diols Chemical class 0.000 claims description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical group CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 5
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 5
- 229940086542 triethylamine Drugs 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000012970 tertiary amine catalyst Substances 0.000 claims description 4
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- 239000010495 camellia oil Substances 0.000 claims description 2
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 2
- 235000011187 glycerol Nutrition 0.000 claims description 2
- 239000004006 olive oil Substances 0.000 claims description 2
- 235000008390 olive oil Nutrition 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 125000002524 organometallic group Chemical group 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 34
- 238000002347 injection Methods 0.000 abstract description 15
- 239000007924 injection Substances 0.000 abstract description 15
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 abstract description 3
- 229920002635 polyurethane Polymers 0.000 abstract description 3
- 239000004814 polyurethane Substances 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract description 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920002323 Silicone foam Polymers 0.000 description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 239000013514 silicone foam Substances 0.000 description 3
- 229960004418 trolamine Drugs 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- JTXMVXSTHSMVQF-UHFFFAOYSA-N 2-acetyloxyethyl acetate Chemical compound CC(=O)OCCOC(C)=O JTXMVXSTHSMVQF-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000013098 chemical test method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000012972 dimethylethanolamine Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000012812 general test Methods 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/18—Prepolymers; Macromolecular compounds
- C09K17/30—Polyisocyanates; Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2103/00—Civil engineering use
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
본 발명은 NATM공법의 보조지반강화공법인 폴리우레탄 주입공법에 사용되는 우레탄 약액 조성물의 단점을 개선한 신규하고 진보한 우레탄 액약 조성물에 관한 것이다.The present invention relates to a novel and advanced urethane liquid pharmaceutical composition that improves the disadvantages of the urethane chemical liquid composition used in the polyurethane injection method, which is an auxiliary ground strengthening method of the NATM method.
본 발명의 일양태는, One aspect of the present invention,
두개 이상의 하이드록시기를 가지는 제1급 폴리올을 포함하는 폴리올 및 우레탄 반응이 가능한 하이드록시기를 가지는 오일을 포함하는 A액, 및 이소시아네이트기를 포함하는 이소시아네이트 화합물을 포함하는 B액으로 구성되는 연약지반 고결용 우레탄 약액 조성물에 관한 것이다.Soft ground solidifying urethane consisting of a liquid A containing a polyol comprising a primary polyol having two or more hydroxyl groups and an oil having a hydroxyl group capable of urethane reaction, and a B liquid containing an isocyanate compound containing an isocyanate group. It relates to a pharmaceutical composition.
우레탄, NATM, 프리폴리머, 오일, 피마자유 Urethane, NATM, Prepolymer, Oil, Castor Oil
Description
산업사회의 발달로 지하공간의 이용이 점차적으로 확대되어 가는 현 상황에서의 지하철, 전력구, 통신구, 기타 지하공간의 가시설공법 중 NATM(New Austrian Tunnelling Method)공법으로 터널을 건설하는 경우가 점차 증가되는 실정이다.
Under the current situation where the use of underground space is gradually expanding due to the development of the industrial society, tunnels are gradually built by NATM (New Austrian Tunnelling Method) among the temporary facilities of subways, electric power stations, communication districts and other underground spaces. It is increasing.
터널을 근본적으로 지지하는 것은 주변 원지반이며 이러한 주변 원지반이 보유하고 있는 지보기능을 활용하기 위해서는 굴착에 의하여 발생되는 원지반응력과 강도와의 관계에 항상 주의하여야 한다. 발생응력은 원지반의 초기응력, 측압계수 등의 원지반 고유의 성질과 터널의 단면 형상, 굴착공법, 굴착방식 등에 의하여 정해지며 원지반 응력집중의 정도로 파악할 수 있다.주변 원지반의 강도가 발생응력보다 크다고 판단되면 지보부재는 시공중의 안정성을 확보할 수 있는 정도로 설계 함으로써 경제성에 노력하여야 하며 원지반강도가 발생응력보다 작은 경우에는 지보부재, 단면형상 및 시공법 등을 충분히 검토하여 원지반의 강도 저하 및 응력집중을 가능한한 방지하는 설계와 시공을 하여야 한다. NATM공법은 반역학 이론을 기 초로 터널주변 지반을 지탱하고 터널을 안정화시키는 공법으로서, 국내도로 터널시공에 대부분 사용된 공법으로 터널이 곡선이고 굴착단면이 크며 지반이 불량한 경우 주로 사용된다.
Fundamentally supporting the tunnel is the surrounding base, and to take advantage of the support function possessed by the surrounding base, always pay attention to the relationship between the ground reaction force and the strength generated by excavation. The generated stress is determined by the inherent properties of the ground, such as the initial stress of the ground, the side pressure coefficient, the cross-sectional shape of the tunnel, the excavation method, and the excavation method, and can be understood as the degree of stress concentration in the ground. The strength of the surrounding ground is greater than the generated stress. If the support member is designed to secure stability during construction, it should be made for economic efficiency. If the support strength is less than the generated stress, the support member, cross-sectional shape and construction method should be thoroughly reviewed to reduce the strength and stress concentration of the support plate. As far as possible, design and construction should be prevented The NATM method is a method that supports the ground around the tunnel and stabilizes the tunnel based on the theory of reverse mechanics. This method is mostly used for tunnel construction in domestic roads and is mainly used when the tunnel is curved, the excavation section is large, and the ground is poor.
NATM공법에 의해 터널을 건설할 경우, 터널 연략지반의 보강을 위해 여러 보조공법들이 소개되어 있는 바, 각 방법에는 각각의 특성 및 장단점이 혼재되어 있다.
When the tunnel is constructed by the NATM method, various auxiliary methods are introduced to reinforce the tunnel ground. Each method has its own characteristics and advantages and disadvantages.
일반적으로 NATM의 지반보강 보조 공법으로서는, 물유리계, 시멘트계 현탁액형이 많이 적용되어 왔다. 특히 지반강도 증진의 목적으로 시멘트현탁액법이 보편적으로 이용되고 있다. 시멘트현탁액법은 비용이 적게 들고 일정한 강도를 보장하지만, 경화기간이 길고 차수효과가 떨어지며 하중이 크므로 침투시 문제가 발생되어, 점토나 실트지반 같은 연약지반에서는 그 효과는 거의 기대하기 어렵다.
In general, as a ground reinforcing assistance method of NATM, water glass-based and cement-based suspension types have been applied. In particular, the cement suspension method is commonly used for the purpose of enhancing the ground strength. The cement suspension method is low cost and guarantees a certain strength, but the hardening period is long, the order effect is inferior, and the load is large, causing problems during penetration, and the effect is hardly expected in soft ground such as clay or silt ground.
이러한 연약지반 여건에서는 강관다단주입 공법이나, 우레탄계 약액주입공법의 활용이 크게 활용된다.
In such soft ground conditions, the steel pipe multi-stage injection method and the urethane-based chemical injection method are widely utilized.
강관다단주입공법은 강도증진이나 하중경감의 효과는 양호하나, 차수효과가 떨어지며 보강공에 필요한 공정이 굴착공정에 지대한 영향을 미치므로 공기를 맞추는데 매우 불리하며, 또한 지하수 유출이 많을 경우 차수효과는 거의 기대할 수 없 으므로 적용범위가 매우 제한된다.
Steel pipe multi-stage injection method has good effect of strength increase and load reduction, but it is inferior in order effect and it is very disadvantageous to fit air because process required for reinforcement has a great influence on excavation process. Almost unanticipated, the scope of application is very limited.
또한, 최근 많이 사용되는 LW계 약액주입공법 및 SGR계 약액주입공법은 물유리 약액과 시멘트 현탁액을 혼합하면 겔(Gel)화 된다는 현상에 착안하여 개발된 공법으로 재료의 낭비가 발생하지 않고 재료비, 공사비가 저렴한 장점이 있지만, 대규모 설비가 필요하고 천공에 보링머신등 막장에 여타 복잡한 기계설비가 설치되어야 하며, 세사층이나 점토층과 같은 변동 지반에 대한 고결특성에 있어 지하수에 의한 영향이 지대하므로 계획적 한정적 시공이 곤란한 단점이 있다.
In addition, the LW-based chemical injection method and the SGR-based chemical injection method, which are widely used in recent years, have been developed based on the phenomenon that gel is formed when water glass chemical and cement suspension are mixed. Although it has the advantage of being inexpensive, there is a need for large-scale facilities, and other complex mechanical facilities such as boring machines must be installed in the drilling, and the groundwater effects on the freezing characteristics of the fluctuating ground such as fine sand or clay layers are intentionally limited. There is a disadvantage that construction is difficult.
현재 새롭게 알려지고 있는 폴리우레탄 주입공법(이하 우레탄 공법이라 함)은 암반고결공법 (PU-IF)로 1990년대부터 시공되기 시작했다.
The newly known polyurethane injection method (hereinafter referred to as urethane method) is a rock solidification method (PU-IF) that has been started since the 1990s.
우레탄 공법은 연약한 지층, 파쇄대 및 단층대 등에 일정한 간격으로 천공한 후 주입 볼트를 삽입하고 이 삽입된 주입 볼트내에 2액형의 발포성 우레탄계 약액을 배합하여 1-20kg/㎠정도의 압력을 가하여 절리가 발달된 암반의 암편사이를 완전히 충진함으로 하나의 암반체가 아치형태를 이루어 터널 상부의 암반 상재 하중을 지지하여 붕락, 변형을 방지하게 하는 공법이다.
In the urethane method, after drilling at regular intervals in soft strata, crushing zones and fault zones, insert injection bolts, and mix the two-component foamable urethane-based chemical solution in the inserted injection bolts to apply a pressure of about 1-20kg / ㎠ to develop joints It is a method to prevent collapse and deformation by completely filling the rock pieces between the rocks to support the rock loading on the upper part of the tunnel by forming an arch shape.
또한 측벽부의 측압에 의한 활동도 방지할 수 있으며 특히 암편사이의 공극이 완전히 우레탄 약액으로 충진되므로 완벽한 차수효과를 얻을 수 있다.
In addition, it is possible to prevent the activity due to the side pressure of the side wall, and in particular, since the voids between the arm pieces are completely filled with urethane chemicals, a perfect ordering effect can be obtained.
종래의 우레탄 공법에 사용되는 우레탄 주입액은 경화제인 A액 및 주제인 B액으로 구성된 2액형 우레탄 약액을 사용한다.
The urethane injection liquid used in the conventional urethane method uses the two-component urethane chemical liquid which consists of A liquid which is a hardening | curing agent, and B liquid as a main body.
2액형 우레탄 약액의 구성은, A액은 폴리에테르 폴리올 및 그 유도체,B액은 MDI(Diphenylmethane Diisocyanate)계 프리폴리머 및 그 유도체가 주성분이다.
In the composition of the two-component urethane chemical solution, the liquid A is a polyether polyol and its derivatives, and the liquid B is a MDI (Diphenylmethane Diisocyanate) -based prepolymer and its derivatives.
경화제로 사용되는 A액의 경우, 폴리올계 화합물에 가교제, 정포제, 발포조제, 점도저하제를 추가하여 사용하여 왔다.
In the case of A liquid used as a curing agent, a crosslinking agent, a foam stabilizer, a foaming aid, and a viscosity reducing agent have been added to the polyol compound.
주제로 사용되는 B액의 경우, 디페닐메탄 디이소시아네이트 등을 포함한다.
In the case of the B liquid used as the subject, diphenylmethane diisocyanate and the like are included.
반응상태는 주제의 프리폴리머의 이소시아네이트기(B액)와 경화제의 폴리올 하이드록시기(A액)가 주입기 내에 장착된 정지 믹스기를 통해서 혼합교반되므로 인하여 수소결합함으로써 3차원의 강력한 우레탄 수지를 생성한다.The reaction state is hydrogen-bonded to produce a three-dimensional strong urethane resin because the isocyanate group of the main prepolymer (B solution) and the polyol hydroxy group of the curing agent (A solution) are mixed and stirred through a stationary mixer mounted in the injector.
우레탄 반응은 중합반응, 가수반응, 포화반응, 가교반응으로 이루어진다.
Urethane reaction consists of a polymerization reaction, a hydrolysis reaction, a saturation reaction, and a crosslinking reaction.
주입제로서의 종래 우레탄 약액은 A액과 B액의 배합비율을 1 : 2.8±3 으로 하여 사용하며 각각 별개의 펌프를 갖고 주입기 선단에 위치한 Y자형 파이프내의 정지 믹스기를 통해서 목적한 부위에 합류시켜서 혼합주입하여 사용된다.
Conventional urethane chemicals as injectors use a mixture of A and B in a ratio of 1: 2.8 ± 3, and have a separate pump, each of which is joined by mixing to the desired site through a stop mixer in the Y-shaped pipe located at the tip of the injector. It is used by injection.
이러한 종래의 우레탄 약액은 일반적으로 압축강도가 약 450N/cm2, 휨강도가 약 500N/cm2로서 그 강도가 약하여 완전한 지반보강에 문제점이 있다. 더욱이 차수시 지하수와 약액이 혼합될 때 압축강도가 약 50N/cm2 이하로 저하되어 쉽게 부서지는 경향이 있다.
Such conventional urethane chemicals generally have a compressive strength of about 450 N / cm 2 and a flexural strength of about 500 N / cm 2, which are weak in strength and thus have problems with complete ground reinforcement. In addition, when the groundwater and the chemical liquid is mixed in the order of order, the compressive strength is lowered to about 50 N / cm 2 or less and tends to be easily broken.
또한, A액 및 B액에 혼합되는 점도저하제 및 발포제로 사용되는 에틸아세테이트, 메틸렌클로라이드 등의 솔벤트는 인체 호흡기에 치명적인 독성을 가져 작업환경을 악화시키고 나아가 작업장소 주변의 환경 또한 파괴하는 등의 문제점이 있다.
In addition, solvents such as ethyl acetate and methylene chloride, which are used as a viscosity lowering agent and a blowing agent mixed in the liquid A and the liquid B, have a lethal toxicity to the human respiratory system, worsening the working environment, and also destroying the environment around the work place. There is this.
또한 A액과 B액의 배합비율이 1:3으로써 혼합시 완전한 혼합을 달성하기가 물리적으로 용이하지 아니하여 반응후의 물성에 문제가 많았다.
In addition, since the mixing ratio of the liquid A and the liquid B was 1: 3, it was not physically easy to achieve complete mixing when mixing, and thus there were many problems in the physical properties after the reaction.
본 발명은 이러한 NATM공법의 보조지반강화공법인 폴리우레탄 주입공법에 사용되는 우레탄 약액 조성물의 단점을 개선한 신규하고 진보한 우레탄 액약 조성물에 관한 것이다.The present invention relates to a novel and advanced urethane liquid pharmaceutical composition that improves the disadvantages of the urethane chemical composition used in the polyurethane injection method, which is an auxiliary ground strengthening method of the NATM method.
본 발명의 일양태는, One aspect of the present invention,
두개 이상의 하이드록시기를 가지는 제1급 폴리올을 포함하는 폴리올 및 우레탄 반응이 가능한 하이드록시기를 가지는 오일을 포함하는 A액, 및 이소시아네이트기를 포함하는 이소시아네이트 화합물을 포함하는 B액으로 구성되는 연약지반 고결용 우레탄 약액 조성물에 관한 것이다.
Soft ground solidifying urethane consisting of a liquid A containing a polyol comprising a primary polyol having two or more hydroxyl groups and an oil having a hydroxyl group capable of urethane reaction, and a B liquid containing an isocyanate compound containing an isocyanate group. It relates to a pharmaceutical composition.
상기 A액에 포함되는 두개 이상의 하이드록시기를 가지는 폴리올은, 폴리옥시알킬렌 디올, 폴리옥시알킬렌 트리올, 글리세린, 소르비톨 등의 2가 알코올 중합체 또는 3가 이상의 알코올 중합체 중에서 하나 이상 선택된다. A액중의 폴리올의 함량은 60 내지 85 중량%, 바람직하게는 65 내지 85 중량%이다. 바람직하게는, A액은 폴리옥시알킬렌 디올 60 내지 70 중량%, 그리고 폴리옥시알킬렌 트리올 5 내지 10 중량%를 포함한다.The polyol having two or more hydroxy groups contained in the solution A is selected from at least one of a dihydric alcohol polymer such as polyoxyalkylene diol, polyoxyalkylene triol, glycerin, sorbitol, or a trihydric alcohol polymer. The content of the polyol in the liquid A is 60 to 85% by weight, preferably 65 to 85% by weight. Preferably, liquid A comprises 60 to 70% by weight of polyoxyalkylene diol, and 5 to 10% by weight of polyoxyalkylene triol.
상기 폴리올은 하이드록시기가가 100 이상이 바람직하다. 구체적으로는, 폴리옥시알킬렌 디올은 하이드록시기가가 450 이상이 바람직하며, 폴리옥시알킬렌 트리올은 하이드록시기가가 100 이상이 바람직하다.The polyol preferably has a hydroxyl value of 100 or more. Specifically, the polyoxyalkylene diol preferably has a hydroxyl value of 450 or more, and the polyoxyalkylene triol preferably has a hydroxyl value of 100 or more.
상기 우레탄 반응이 가능한 하이드록시기를 가지는 오일은, 요오드값 100 이하의 불건성유로서, 동백기름, 올리브유, 및 피마자유 중에서 선택되며, 피마자유가 바람직하다. A액중의 오일의 함유량은 10 내지 15 중량 퍼센트이다.
The oil having a hydroxyl group capable of the urethane reaction is selected from camellia oil, olive oil, and castor oil as an undried oil having an iodine value of 100 or less, and castor oil is preferable. The content of oil in liquid A is 10 to 15 weight percent.
상기 A액은 무기금속 촉매 및 3급아민계 촉매 중에서 하나 이상 선택되는 촉매를 포함한다. 무기금속촉매는 주촉매로서 주석계통의 촉매 또는 납계통의 촉매가 바람직하며, 구체적으로는, 디부틸틴디라우레이트가 바람직하다. 3급 아민계 촉매는 부촉매로서 트리에틸 아민이 바람직하다. A액중의 촉매의 함유량은 0.5 내지 5 중량%이, 바람직하게는 디부틸틴디라우레이트 0.5 내지 1.0 중량 % 및 트리에틸 아민 2 내지 3 중량%이다.
The liquid A includes a catalyst selected from at least one of an inorganic metal catalyst and a tertiary amine catalyst. The inorganic metal catalyst is preferably a tin-based catalyst or a lead-based catalyst as the main catalyst, and specifically, dibutyl tin dilaurate is preferable. The tertiary amine catalyst is preferably triethyl amine as a subcatalyst. The content of the catalyst in the liquid A is 0.5 to 5% by weight, preferably 0.5 to 1.0% by weight of dibutyl tin dilaurate and 2-3% by weight of triethyl amine.
상기 A액은 실리콘 정포제를 포함한다. 실리콘 정포제는 일반 시중에서 구입할 수 있는 우레탄 경질 폼에 사용되는 실리콘 정포제이다. A액중 정포제의 함량은 1.0 내지 1.5중량%가 바람직하다.
The liquid A contains a silicon foam stabilizer. Silicone foam stabilizers are silicone foam stabilizers used in commercially available urethane rigid foams. The content of the foam stabilizer in the A liquid is preferably 1.0 to 1.5% by weight.
상기 A액은 가교제로서, 트리에탄올 아민을 추가로 포함할 수 있다. 가교제의 함량은 2 내지 5 중량%이다.
The liquid A may further include triethanol amine as a crosslinking agent. The content of the crosslinking agent is 2 to 5% by weight.
상기 A액은 발포제로서, 물을 추가로 포함할 수 있다. 물의 함량은 1중량% 이하이다.
The liquid A may further include water as a blowing agent. The content of water is 1% by weight or less.
상기 B액에 포함되는 이소시아네이트 화합물은 프리폴리머 반응된 이소시아네이트 화합물이 바람직하며, 구체적으로는 디페닐메탄 디이소시아네이트(MDI)에 폴리올을 반응시킨 프리폴리머가 바람직하다. 상기 프리폴리머 반응에 사용되는 폴리올은 에틸렌 글리콜, 디프로필렌 글리콜 및 폴리옥시알킬렌 트리올에서 하나 이상 선택된다.
The isocyanate compound contained in the liquid B is preferably a prepolymer-reacted isocyanate compound, and specifically, a prepolymer in which a polyol is reacted with diphenylmethane diisocyanate (MDI) is preferable. The polyol used in the prepolymer reaction is selected from at least one of ethylene glycol, dipropylene glycol and polyoxyalkylene triols.
상기 B액의 구체적인 성분으로서는, 디페닐메탄 디이소시아네이트 85 내지 92 중량 %, 폴리올 8 내지 15 중량%가 바람직하다.
As a specific component of the said liquid B, 85-92 weight% of diphenylmethane diisocyanate and 8-15 weight% of polyols are preferable.
상기 A액과 B액은 중량비로 1 : 1 내지 1 : 1.1 로 배합하여 사용한다.
The liquid A and liquid B are used in combination in a weight ratio of 1: 1 to 1: 1.1.
[본 발명에 따른 약액의 주입방법][Injection method of drug solution according to the present invention]
본 발명에 따른 우레탄 약액 조성물은 주입기를 통해 A액 및 B액이 Y형 파이프의 주입기 선단에 있는 고정 믹서를 통과하면서 혼합되어 압입 설치한 파이프(패커) 선단의 구멍을 통하여 토출됨으로써, 주입수지가 연약지반에 침투하여 5분 이내의 빠른 경화가 이루어지게 된다.
In the urethane chemical composition according to the present invention, A and B liquids are mixed through the injector while passing through the fixed mixer at the injector tip of the Y-type pipe, and are discharged through the holes at the tip of the pipe (packer) installed by press-fitting, whereby the injection resin is It penetrates into the soft ground and achieves fast curing within 5 minutes.
본 발명에 따른 우레탄 약액 조성물은 주로 터널 천단부의 지반보강, 암반탈락에 의한 여굴 및 복공배면의 충진 시공, 터널 하부 보강 및 측벽 보강 및 지반이완방지 및 사력층 차수효과 등에 사용된다.
The urethane chemical composition according to the present invention is mainly used for ground reinforcement of tunnel top end, filling construction of overhole and perforated rear surface by rock dropout, tunnel reinforcement and sidewall reinforcement and ground relaxation prevention, and history layer ordering effect.
본 발명은 다음의 실시예에 의해 더욱 자세히 설명되어지나, 하기 실시예에 의해 한정되어지지는 아니한다.
The invention is illustrated in more detail by the following examples, but is not limited by the following examples.
[실시예 1]Example 1
A액의 제조Preparation of liquid A
폴리옥시프로필렌 디올 70중량%, 70% by weight of polyoxypropylene diol,
폴리옥시알킬렌 트리올 7 중량%, 7% by weight of polyoxyalkylene triol,
피마자유 15중량%, 15% by weight castor oil,
디부틸틴디라우레이트(주촉매) 1.0중량%, 1.0% by weight of dibutyl tin dilaurate (main catalyst),
트리에틸아민 (부촉매) 2중량%, 2% by weight triethylamine (cocatalyst),
트리에탄올아민 (가교제) 4.5중량%4.5% by weight of triethanolamine (crosslinking agent)
물 (발포제) 0.5중량%
0.5% by weight of water (foaming agent)
B액의 제조Production of liquid B
디페틸메탄 4-4' 디이소시아네이트(MDI) 87중량%Difetyl methane 4-4 'diisocyanate (MDI) 87% by weight
디에틸렌글리콜 13중량%
Diethylene glycol 13% by weight
[비교실시예 1]Comparative Example 1
A액A amount
폴리에테르폴리올 40중량%40% by weight of polyether polyol
디에틸렌글리콜 38중량% Diethylene glycol 38% by weight
부탄디올 10중량%Butanediol 10% by weight
트리에탄올아민 5중량%5% by weight of triethanolamine
DMEA 및 TEDA 1중량%1% by weight of DMEA and TEDA
에틸렌아세테이트 4중량%Ethylene Acetate 4% by weight
실리콘정포제 2중량%
2% by weight of silicone foam stabilizer
B액B amount
MDI 92중량%MDI 92% by weight
메틸렌클로라이드 8중량%
Methylene chloride 8% by weight
하기는 상기 실시예 1에서 제조된 본 발명에 따른 우레탄 약액(A액 및 B액)과 비교 실시예 1에서 제조된 종래의 기술에 따른 우레탄 약액의 반응후의 결과물인 보강재에 대한 비교표이다.
The following is a comparison table for the resulting reinforcing material after the reaction of the urethane chemical solution (A liquid and B liquid) according to the present invention prepared in Example 1 and the urethane chemical liquid according to the prior art prepared in Example 1.
점도는 KS M 3705 (접착재의 일반 시험방법)에 따라 시험한다.Viscosity is tested according to KS M 3705 (General Test Methods for Adhesives).
비중시험은 KS M 5000 (도료 및 관련원료 시험방법)에 따라 시험한다.
Specific gravity test is carried out in accordance with KS M 5000 (Testing methods for paints and related materials).
휨 강도 및 압축강도 시험은 철판지속에 두께 2.5 cm, 길이 8cm, 폭 5 cm로 우레탄 4배 발포하여 접착된 상태로 만능재료 시험기를 통해 2mm/분의 속도로 인장 하여 접착강도를 구한다.
The flexural strength and compressive strength test is obtained by tensile strength at the rate of 2mm / min through the universal testing machine while foaming urethane 4 times urethane with foam thickness 2.5cm, length 8cm, width 5cm.
- 비 교 표 --Comparison Table-
* 2003년 4월 8일자 한국화학시험연구원 시험
* Korea Chemical Testing Institute test of April 8, 2003
상기 표에서 볼 수 있듯이, 본 발명에 따른 우레탄 약액은 압축강도 약 3000 N/cm2 이상, 휨강도 1500N/cm2이상의 초 고강도를 유지함으로써 완벽한 지반 및 암반 보강을 할 수 있다. 특히 약액 주입시 약액이 지하수에 흡수되더라도 반응생성물의 강도에 물의 영향이 적어 일정한 강도를 유지할 수 있도록 한다.
As can be seen in the above table, the urethane chemical according to the present invention can achieve perfect ground and rock reinforcement by maintaining super high strength of about 3000 N / cm 2 or more of compression strength, 1500 N / cm 2 or more of bending strength. In particular, even when the chemical is absorbed into the groundwater during the injection of the chemical solution, the influence of the water on the reaction product is less, so that the constant strength can be maintained.
또한, 종래에 사용되는 솔벤트인 메틸렌클로라이드, 또는 에틸아세테이트 등을 사용하지 않고 프리폴리머 공법을 적용하므로서 환경 친화적이며 인체에 무해한 효과를 가진다.In addition, by applying a prepolymer method without using conventional solvents such as methylene chloride, ethyl acetate, etc., it is environmentally friendly and harmless to the human body.
더욱이 본 발명에 따른 약액은 A액 및 B액의 혼합비율이 1 : 1 내지 1 : 1.1 로서 물리적으로 완전한 배합이 가능하여 작업 능률의 향상을 꾀할수 있도록 한다.In addition, the chemical solution according to the present invention is a mixture ratio of the liquid A and liquid B is 1: 1 to 1: 1.1 can be physically completely blended to improve the work efficiency.
Claims (15)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030059084A KR100556567B1 (en) | 2003-08-26 | 2003-08-26 | Super Strength Urethane Chemical Composition for Soft Ground Freezing |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020030059084A KR100556567B1 (en) | 2003-08-26 | 2003-08-26 | Super Strength Urethane Chemical Composition for Soft Ground Freezing |
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| Publication Number | Publication Date |
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| KR20050022061A KR20050022061A (en) | 2005-03-07 |
| KR100556567B1 true KR100556567B1 (en) | 2006-03-03 |
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| KR1020030059084A KR100556567B1 (en) | 2003-08-26 | 2003-08-26 | Super Strength Urethane Chemical Composition for Soft Ground Freezing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101176895B1 (en) * | 2011-09-02 | 2012-08-29 | 김창준 | Urethane strata consolidation |
| KR101420965B1 (en) * | 2013-01-25 | 2014-07-21 | 경북대학교 산학협력단 | Repairing material comprising crushed stone and urethane |
| KR101991663B1 (en) * | 2018-08-09 | 2019-06-21 | 김창준 | Eco-friendly Polymer grouting-accelerating agent for polymer grouting, Manufacturing method thereof, Eco-friendly Polymer grout agent composition using the same and Eco-friendly Polymer grouting method |
| KR102139803B1 (en) | 2019-10-18 | 2020-07-31 | 대윤지오텍 주식회사 | Soft ground subsidence reinforcement composition |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6882940B2 (en) * | 2017-06-12 | 2021-06-02 | 旭有機材株式会社 | Chemical composition for ground injection |
| KR101845358B1 (en) * | 2017-07-17 | 2018-05-18 | 대화정밀공업(주) | Non-forming injection composition with high-adhesion and high-elasticity for repairing concrete crack and crack repairing method of concrete structure therewith |
-
2003
- 2003-08-26 KR KR1020030059084A patent/KR100556567B1/en active IP Right Grant
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101176895B1 (en) * | 2011-09-02 | 2012-08-29 | 김창준 | Urethane strata consolidation |
| KR101420965B1 (en) * | 2013-01-25 | 2014-07-21 | 경북대학교 산학협력단 | Repairing material comprising crushed stone and urethane |
| KR101991663B1 (en) * | 2018-08-09 | 2019-06-21 | 김창준 | Eco-friendly Polymer grouting-accelerating agent for polymer grouting, Manufacturing method thereof, Eco-friendly Polymer grout agent composition using the same and Eco-friendly Polymer grouting method |
| KR102139803B1 (en) | 2019-10-18 | 2020-07-31 | 대윤지오텍 주식회사 | Soft ground subsidence reinforcement composition |
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| KR20050022061A (en) | 2005-03-07 |
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