Kurapa nekudzivirira matanho ekongiri yakatsemuka mumafashama ekuburitsa tunnel yehydropower station
1.1 Mhedziso yemafashama ekuburitsa tunnel chirongwa cheShuanghekou Hydropower Station muMengjiang River Basin.
Mafashamo ekuburitsa mugero weShuanghekou Hydropower Station muMengjiang River Basin yeGuizhou Province inotora chimiro chegedhi reguta.Mugero wese wakareba 528 m, uye yekupinda nekubuda pasi yakakwira ndeye 536.65 uye 494.2 m zvakateerana.Pakati pavo, mushure mekutanga kuchengetedza mvura yeShuanghekou Hydropower Station , Mushure mekutarisa panzvimbo, zvakaonekwa kuti apo mvura yemvura munzvimbo yegungwa yakanga yakakwirira kudarika kukwidziridzwa kwepamusoro pechivharo chevhavha yemafashamo, kuvakwa. majoini uye kongiri inotonhora majoini epasi ndiro yeakareba-musoro-yakarerekera shaft yakaburitsa mvura seepage, uye iyo mvura seepage huwandu hwaiperekedzwa nehuwandu hwemvura munzvimbo yedhamu.kusimuka nekuramba kuchiwedzera.Panguva imwecheteyo, kuputika kwemvura kunoitikawo mumadziro emadziro kongiri inotonhora majoini uye majoini ekuvaka mune yakarerekera shaft chikamu cheLongzhuang.Mushure mekuongorora uye tsvakurudzo nevashandi vakakodzera, zvakaonekwa kuti zvikonzero zvikuru zvekubuda kwemvura muzvikamu izvi zvakakonzerwa nemamiriro asina kunaka e geological strata yedombo mumatanho aya, kurapwa kusingagutsi kwemajoini ekuvaka, chizvarwa chezvibatanidza zvinotonhora panguva kongiri yekudira nzira, uye kusasimba kwekubatanidzwa uye grouting ye duxun tunnel plugs.Jia et al.Kuti izvi zviitike, vashandi vakakodzera vakaronga nzira yemakemikari grouting panzvimbo inoyerera kuti ibudirire inhibisa iyo seepage uye kubata kuputika.
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1.2 Kurapwa kwepakatsemuka mumafashama ekuburitsa mugero weShuanghekou Hydropower Station muMengjiang River Basin.
Nzvimbo dzese dzakacheneswa dzemafashamo ekuburitsa tunnel yeLuding Hydropower Station inogadzirwa neHFC40 kongiri, uye mazhinji emakoronga akakonzerwa nekuvakwa kwedhamu rechiteshi chemagetsi anogoverwa pano.Maererano nenhamba, makatsemuka akanyanya kunyura muchikamu che 0+180~0+600 chedhamu.Nzvimbo huru yezvimedu ndiyo madziro emadziro ane chinhambwe che1 ~ 7m kubva pasi peplate, uye yakawanda yehupamhi inenge 0.1 mm, kunyanya kune imwe neimwe yekuchengetedza.Chikamu chepakati chekugovera ndicho chakanyanya.Pakati pavo, kona yekuitika kwekutsemuka uye kona yakatwasuka inoramba yakakura kupfuura kana yakaenzana ne 45. , chimiro chakatsemuka uye chisina kujairika, uye kuputika kunoburitsa mvura inoyerera kunowanzo kuve nediki shoma remvura, nepo mazhinji ekuputika. anongoonekwa akanyorova pajoint surface uye mawatermark anoonekwa panzvimbo yekongiri, asi pane mashoma ari pachena emvura anobuda mavanga.Pane kashoma kuwana mvura inoyerera.Nokucherechedza nguva yekukura kwekutsemuka, zvinozivikanwa kuti kuputika kuchaonekwa apo fomu inobviswa maawa makumi maviri nemana mushure mekudururwa kwekongiri mukutanga, uye ipapo kuputika uku kuchasvika zvishoma nezvishoma panguva yepamusoro kwemazuva manomwe mushure mekubviswa iyo formwork.Iyo haizoregi kukura zvishoma nezvishoma kusvika l5-20 d mushure mekugadzira.
2. Kurapa uye kudzivirira kunoshanda kwekongiri kutsemuka mumafashama ekuburitsa tunnels ezviteshi zvehydropower
2.1 Chemical grouting nzira ye spillway tunnel yeShuanghekou Hydropower Station
2.1.1 Nhanganyaya, maitiro uye magadzirirwo ezvinyorwa
Izvo zvinhu zvemakemikari slurry ndeye PCI-CW yakakwirira permeability yakagadziridzwa epoxy resin.Nyaya yacho ine simba rakabatana rakawanda, uye inogona kurapwa patembiricha yekamuri, ine shrinkage shoma mushure mekurapa, uye panguva imwecheteyo, ine hunhu hwekusimba kwemagetsi uye kugadzikana kwekupisa kwekudzivirira, saka ine yakanaka yekumira-mvura uye inodonha- kumira mhedzisiro.Rudzi urwu rwekusimbisa grouting runoshandiswa zvakanyanya mukugadzirisa nekusimbisa mapurojekiti ekuchengetedza mvura.Pamusoro pezvo, izvo zvinhu zvakare zvine zvakanakira nzira yakapusa, yakanakisa kuchengetedza kwezvakatipoteredza kuita, uye hapana kusvibiswa kune nharaunda.
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2.1.2 Matanho ekuvaka
Kutanga, tsvaga seams uye kuboora maburi.Chenesa kuputika kunowanikwa mukuteuka nemvura yakanyanyisa uye shandura nzvimbo yekrete yepasi, uye chengetedza chikonzero chekuputika uye nzira yekuputika.Uye tora nzira yekubatanidza gomba rakatsemuka uye gomba rakarerekera rekuchera.Mushure mekupedza kuchera kwegomba rakarerekera, zvinodikanwa kushandisa mhepo yepamusoro-yepamusoro uye pfuti yemvura yepamusoro-soro kuti utarise gomba uye kuputika, uye kupedzisa kuunganidza data kwehukuru hwekutsemuka.
Chechipiri, maburi emachira, maburi ekuvhara uye seam seam.Zvekare, shandisa mhepo yakakwira-kudzvanya kuti ubvise gomba rekugezera kuti rivakwe, uye bvisa sediment yakaiswa pazasi pegomba uye pamadziro egomba, wozoisa iyo grouting hole blocker woimaka pagomba repombi. .Kuzivikanwa kwegrout uye maburi emhepo.Mushure mekunge maburi ekugezera arongedzwa, shandisa PSI-130 yekukurumidza plugging agent kuvhara makomba, uye shandisa epoxy simenti kuti uwedzere kusimbisa kuvharwa kwemakomba.Mushure mekuvhara kuvhurika, zvakakosha kuti ucheke groove ye 2cm yakafara uye 2cm yakadzika parutivi rwekutsemuka kwekongiri.Mushure mekuchenesa chiseled groove uye retrograde pressure yemvura, shandisa kukurumidza plugging kuvhara groove.
Zvekare, mushure mekutarisa kufefetedza kwepombi yakavigwa, tanga kushanda kwegrouting.Munguva yekugadzira grouting, zvisinganzwisisiki-nhamba-makomba oblique anotanga kuzadzwa, uye nhamba yemakomba inorongwa maererano nehurefu hwemaitiro chaiwo ekuvaka.Kana uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchifunga nezve grouting mamiriro emakomba ari padyo.Kana makomba ari padyo aine grouting, mvura yese iri mumakomba ekugezera inoda kudonhedzwa, uye yozobatanidzwa kune pombi yegrout uye grouted.Maererano nenzira iri pamusoro, buri rimwe nerimwe rinocherwa kubva kumusoro kusvika pasi uye pasi kusvika kumusoro.
Kurapa nekudzivirira matanho ekongiri yakatsemuka mumafashama ekuburitsa tunnel yehydropower station
Pakupedzisira, iyo grout inopera standard.Chiyero chekumanikidza chemakemikari grouting yekongiri yakatsemuka muspillway ndiyo yakajairwa kukosha inopihwa nedhizaini.Kazhinji kutaura, iyo yakanyanya grouting pressure inofanirwa kunge iri pasi kana kuenzana ne1.5 MPa.Kutsunga kwekuguma kwegrouting kunobva pahuwandu hwejekiseni uye ukuru hwekumanikidza kwegrouting.Chinodiwa chakakosha ndechekuti mushure mekumanikidza kwegrouting kwasvika pakakwirira, iyo grouting haichazopinda mugomba mukati me30mm.Panguva ino, kusungirirwa kwepombi uye slurry kuvhara kushanda kunogona kuitwa.
Zvinokonzera uye matanho ekurapa kwekutsemuka mumafashama ekuburitsa mugero weLuding Hydropower Station
2.2.1 Ongororo yezvakakonzeresa mafashama ekuburitsa mugero weLuding Hydropower Station
Chekutanga, iyo mbishi zvinhu hazvina kuenderana uye kugadzikana.Chechipiri, huwandu hwesimende muhuwandu hwekusanganiswa hwakakura, izvo zvinoita kuti kongiri ibudise kupisa kwakawanda kwe hydration.Chechipiri, nekuda kweiyo yakakura yekupisa yekuwedzera coefficient yematombo aggregates mumigero yenzizi, kana tembiricha ichichinja, mahombe uye izvo zvinonzi coagulating zvinhu zvinodonha.Chetatu, HF kongiri ine yakakwira tekinoroji zvinodiwa, zvakaoma kugona mukuita kwekuvaka, uye kutonga kwekuzunguza nguva uye nzira haigone kuzadzisa zvakajairwa zvinodiwa.Uye zvakare, nekuti mafashama ekuburitsa mugero weLuding Hydropower Station yakapindwa, kuyerera kwemhepo kwakasimba kunoitika, zvichikonzera kudzikira kwakadzika mukati memugero, zvichikonzera musiyano mukuru wetembiricha pakati pekongiri nenzvimbo yekunze.
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2.2.2 Kurapa nekudzivirira matanho ekutsemuka mumafashamo ekuyerera
(1) Kuti uderedze kufefetedza kwemugero uye kuchengetedza tembiricha yekongiri, kuitira kuti uderedze musiyano wetembiricha pakati pekongiri nekunze kwezvakatipoteredza, iyo yakakombama furemu inogona kumisikidzwa pakubuda kwegomba rekuteuka, uye canvas curtain inogona kuturika.
(2) Pasi pechikonzero chekusangana nezvinodiwa zvesimba, chikamu chekongiri chinofanira kugadziridzwa, huwandu hwesimende hunofanira kudzikiswa zvakanyanya sezvinobvira, uye huwandu hwemadota enhunzi hunofanira kuwedzerwa panguva imwe chete, kupisa kwe hydration yekrete kunogona kuderedzwa, kuitira kuderedza mukati uye kunze kupisa kwekrete.kusiyana kwekushisa.
(3) Shandisa komputa kudzora huwandu hwemvura yakawedzerwa, kuitira kuti mvura-simende ratio inyatsodzorwa mukusanganisa kongiri.Izvo zvinofanirwa kucherechedzwa kuti panguva yekusanganiswa, kuitira kuti uderedze tembiricha yekubuda kwezvinhu zvakasvibirira, zvinodikanwa kutora tembiricha yakaderera.Paunenge uchitakura kongiri muzhizha, inoenderana nekupisa kwemafuta uye kutonhora matanho kunofanirwa kutorwa kuti inyatso kudzikisa kupisa kwekongiri panguva yekufambisa.
(4) Iyo vibrating process inoda kunyatsodzorwa mukuvaka, uye iyo vibrating operation inosimbiswa nekushandisa flexible shaft vibrating tsvimbo dzine madhayamita e100 mm uye 70 mm.
(5) Nyatsodzora kumhanya kwekongiri inopinda mudura, kuitira kuti kumhanya kwayo kukwira kuri kushoma kana kuenzana ne0.8 m/h.
(6) Wedzera nguva yekubvisa kongiri yeformwork kusvika ka1 nguva yekutanga, kureva, kubva pa24 h kusvika 48 h.
(7) Mushure mekubvisa fomu, tumira vashandi vakakosha kuti vaite basa rekugadzirisa zvekupfapfaidza pachirongwa chekongiri nenguva.Mvura yekuchengetedza inofanira kuchengetedzwa pa20 ℃ kana pamusoro pemvura inodziya, uye nzvimbo yekongiri inofanira kugara yakanyorova.
(8) Thermometer inovigwa mudura rekongiri, tembiricha iri mukati mekongiri inotariswa, uye hukama pakati pekushanduka kwetembiricha yekongiri uye chizvarwa chekutsemuka chinonyatso kuongororwa.
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Nekuongorora zvikonzero uye nzira dzekurapa dzemafashama ekuburitsa mugero weShuanghekou Hydropower Station uye mafashama ekuburitsa mugero weLuding Hydropower Station, zvinozivikanwa kuti yekutanga imhaka yekushata kwemamiriro ekunze, kurapwa kusingagutsi kwemajoini ekuvaka, majoini anotonhora uye duxun mapako. panguva yekudira kongiri.Kutsemuka mumafashamo ekuburitsa mugero kunokonzerwa nekusagadzikana kweplug kubatanidzwa uye grouting inogona kunyatso kudzvanywa nemakemikari grouting ane yakakwirira-permeability modified epoxy resin zvinhu;iyo yekupedzisira mitswe inokonzerwa nekupisa kwakanyanya kwekongiri hydration, Cracks inogona kurapwa uye kudzivirirwa zvinobudirira nekudzikisa zvine musoro kuwanda simende uye kushandisa polycarboxylate superplasticizer uye C9035 kongiri zvinhu.
Nguva yekutumira: Jan-17-2022
