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 mekuchengetedza kwekutanga kwemvura yeShuanghekou Hydropower Station, Mushure mekuongororwa kwepa-site, zvakaonekwa kuti apo mvura yemvura munzvimbo yegungwa yakanga yakakwirira kudarika kukwidziridzwa kwepamusoro pechivharo chevhavha yemafashamo, majoini ekuvaka uye majoini ekongiri anotonhora epaplate yepasi-refu-headed inclined shaft yakabudiswa nemvura inoyerera, uye iyo inoperekedzwa nemvura inoyerera. kusimuka nekuramba kuchiwedzera. Panguva imwecheteyo, kuyerera kwemvura kunoitikawo mumadziro emadziro kongiri inotonhora majoini uye majoini ekuvaka mune yakarerekera shaft chikamu cheLongzhuang. Mushure mekuferefetwa uye tsvakiridzo nevashandi vakakodzera, zvakaonekwa kuti zvikonzero zvikuru zvekunyura kwemvura muzvikamu izvi zvaive nekuda kwekusagadzikana kwemamiriro enzvimbo yedombo strata mumatanho aya, kurapwa kusingagutsi kwemajoini ekuvaka, kugadzirwa kwemajoini anotonhora panguva yekudururwa kwekongiri, 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 kuyerera uye kubata kuputika.
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1.2 Kurapwa kwepakatsemuka mumafashama ekuburitsa mugero weShuanghekou Hydropower Station muMengjiang River Basin.
Nzvimbo dzese dzakacheneswa dzemafashama ekuburitsa tunnel yeLuding Hydropower Station inogadzirwa neHFC40 kongiri, uye mizhinji yemakapu 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 yakadzikama inoramba yakakura kupfuura kana yakaenzana ne 45. , chimiro chakatsemuka uye chisina kujairika, uye kuputika kunobudisa mvura inoputika kunowanzova nehuwandu hwemvura inoputika, asi yakawanda yezviputi zvinongoratidzika zvakanyorova pamusoro pekubatana kwepamusoro uye watermarks dzinoonekwa panzvimbo yekrete, asi kune zvishoma zvishoma zvakajeka zvemvura inoyerera. Pane kashoma kusara kwemvura 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 kusvika pakakwirira kwemazuva anenge 7 mushure mekubviswa kwefomu. 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 rakakwirira, uye inogona kurapwa pakupisa kwekamuri, nekuderera kuduku mushure mekuporesa, uye panguva imwe chete, ine maitiro emasimba emagetsi epamusoro uye kugadzikana kwekupisa kwekupisa, saka ine mvura yakanaka-kumisa uye kumisa-kumisa migumisiro. 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 mokupedza kuchera kwegomba rakarerekera, zvinodikanwa kushandisa mhepo yakanyanyisa uye pfuti yemvura yakakwirira-yepamusoro-soro kutarisa gomba uye kuputika, uye kupedza kuunganidza deta yehukuru hwekuputika.
Chechipiri, maburi emachira, maburi ekuvhara uye seam seams. Zvekare, shandisa mhepo inodzvanyirira yakakwira kuti ubvise gomba rekugezera kuti rivakwe, uye bvisa sediment yakaiswa pazasi pegomba uye pamadziro egomba, wozoisa grouting hole blocker woimaka pagomba repombi. Kuzivikanwa kwegrout uye maburi emhepo. Mushure mekunge maburi ekugezera arongedzwa, shandisa PSI-130 yekukurumidza plugging agent kuti iname ma cavities, uye shandisa epoxy simende 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 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, gomba rimwe nerimwe rinocherwa kubva kumusoro kusvika pasi uye pasi kusvika kumusoro.
Kurapa nekudzivirira matanho ekongiri yakatsemuka mumafashama ekuburitsa tunnel yehydropower station
Pakupedzisira, 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 kusvika 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 yezvakakonzera mafashama ekuburitsa tunnel yeLuding Hydropower Station
Chekutanga, iyo mbishi zvinhu hazvina kuenderana uye kugadzikana. Chechipiri, huwandu hwesimende muhupamhi hwekusanganiswa hwakakura, izvo zvinoita kuti kongiri ibudise kupisa kwakanyanya kwemvura. Chechipiri, nekuda kweiyo yakakura yekupisa yekuwedzera coefficient yematombo aggregates mumigero yenzizi, kana tembiricha ichichinja, zvikwata uye izvo zvinonzi coagulating zvinhu zvinodonha. Chechitatu, HF kongiri ine yakakwira tekinoroji zvinodiwa, zvakaoma kugona mukuita basa rekuvaka, uye kutonga kwekuzunguza nguva uye nzira haigone kuzadzisa zvakajairwa zvinodiwa. Uye zvakare, nekuti mafashama ekuburitsa mugero weLuding Hydropower Station yakapinda, kuyerera kwemhepo kwakasimba kunoitika, zvichikonzera kudzikira kwakadzika mukati memugero, zvichikonzera kusiyana kukuru kwetembiricha pakati pekongiri nekunze kwezvakatipoteredza.
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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 mutsauko wetembiricha pakati pekongiri nenzvimbo yekunze, iyo yakakombama furemu inogona kumisikidzwa panobuda mugero wekuteuka, uye canvas keteni rinogona kusungirirwa.
(2) Pasi pechikonzero chekusangana nezvinodiwa zvesimba, chikamu chekongiri chinofanira kugadziridzwa, huwandu hwesimende hunofanira kuderedzwa zvakanyanya sezvinobvira, uye huwandu hwemadota enhunzi hunofanira kuwedzerwa panguva imwe chete, kuitira kuti kupisa kwe hydration yekongiri kuderedzwa, kuitira kuderedza mukati nekunze kupisa kwekongiri. 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 nemafuta ekudzivirira uye kutonhora matanho anofanirwa kutorwa kuti anyatso 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 kuchengetedzwa yakanyorova.
(8) The thermometer inovigwa mudura rekongiri, tembiricha iri mukati mekongiri inotariswa, uye hukama pakati pekushanduka kwetembiricha yekongiri uye chizvarwa chekutsemuka chinoongororwa zvinobudirira.
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Nekuongorora zvikonzero uye nzira dzekurapa dzemafashamo 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 kunogona kunyatso kudzvanywa nemakemikari grouting ane yakakwirira-permeability modified epoxy resin zvinhu; kutsemuka kwekupedzisira kunokonzerwa 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
