Kurapa nekudzivirira kumiswa kwekongiri mugomba rinoburitsa mafashamo echiteshi chemagetsi emvura
1.1 Pfupiso yepurojekiti yekuburitsa mvura mumafashamo yeShuanghekou Hydropower Station muMengjiang River Basin
Mugero wekubuditsa mvura weShuanghekou Hydropower Station muMengjiang River Basin muGuizhou Province wakaita segedhi reguta. Mugero wese wakareba mamita 528, uye nzvimbo dzekupinda nekubuda pasi dzakareba mamita 536.65 uye 494.2 zvichiteerana. Pakati pavo, mushure mekuchengetwa kwekutanga kwemvura yeShuanghekou Hydropower Station, Mushure mekuongororwa panzvimbo iyi, zvakaonekwa kuti kana huwandu hwemvura munzvimbo yedhamu hwakakwira kupfuura kukwirira kwepamusoro pechivharo chemugero wedhamu, nzvimbo dzekuvaka nekongiri dzinotonhora dzepasi pedanda remugero rakareba dzakaburitsa mvura inoyerera, uye huwandu hwemvura inoyerera hwaiperekedzwa nehuwandu hwemvura munzvimbo yedhamu huchikwira uye huchiramba huchiwedzera. Panguva imwe chete, mvura inoyererawo munzvimbo dzemadziro ekongiri dzinotonhora uye nzvimbo dzekuvaka munzvimbo yeshaft yakatsveyama yeLongzhuang. Mushure mekuferefeta nekutsvaga kwakaitwa nevashandi vakakodzera, zvakaonekwa kuti zvikonzero zvikuru zvekubuda kwemvura munzvimbo idzi zvaive nekuda kwemamiriro asina kunaka enzvimbo dzematombo mumatunnel aya, kusabatwa zvakanaka kwemajoini ekuvaka, kugadzirwa kwemajoini anotonhora panguva yekudururira kongiri, uye kusabatanidzwa zvakanaka kwemapulagi etunnel eduxun. Jia nevamwe. Kuti izvi zviitike, vashandi vakakodzera vakapa nzira yekubatanidza makemikari munzvimbo inobuda mvura kuti vadzivise kubuda kwemvura uye kugadzirisa mitswe yacho.
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1.2 Kugadziriswa kwemitswe iri mugomba rinoburitsa mvura yeShuanghekou Hydropower Station muMengjiang River Basin
Zvikamu zvese zvakakweshwa zvemugero wekuburitsa mvura yeLuding Hydropower Station zvakagadzirwa nekongiri yeHFC40, uye mitswe mizhinji inokonzerwa nekuvakwa kwedhamu rechiteshi chemagetsi emvura yakapararira pano. Zvichienderana nehuwandu, mitswe iyi inonyanya kuungana muchikamu che0+180~0+600 chedhamu. Nzvimbo huru yemitswe iyi madziro eparutivi ane chinhambwe che1~7m kubva pasi peplate, uye hupamhi hwakawanda hunenge 0.1 mm, kunyanya kune imwe neimwe imba yekuchengetera zvinhu. Chikamu chepakati chekupararira ndicho chinonyanya kukosha. Pakati pazvo, kona yekuitika kwemitswe uye kona yakatwasuka inoramba yakakura kupfuura kana yakaenzana ne45., chimiro chayo chakatsemuka uye chisina kurongeka, uye mitswe inoburitsa mvura inowanzova nemvura shoma, nepo mitswe mizhinji ichingoonekwa yakanyorova pamusoro pejoint uye watermarks inoonekwa pamusoro pekongiri, asi hapana zviratidzo zvinooneka zvekubuda kwemvura. Hapana zviratidzo zvishoma zvemvura inoyerera. Nekucherechedza nguva yekukura kwezvimedu, zvinozivikanwa kuti zvimedu zvichaonekwa kana fomura yabviswa maawa makumi maviri nemana mushure mekudururwa kwekongiri pakutanga, uye ipapo zvimedu izvi zvichasvika nguva yepamusoro-soro kwemazuva manomwe mushure mekubviswa kwefomura. Hazvizoregi kukura zvishoma nezvishoma kusvika mazuva mashanu kusvika makumi maviri mushure mekubviswa.
2. Kurapa nekudzivirira zvinobudirira kuputika kwekongiri mumatangi anoburitsa mvura mumafashamo ezviteshi zvemagetsi emvura
2.1 Nzira yemakemikari yekugadzira mugero wemvura inorasikira mvura weShuanghekou Hydropower Station
2.1.1 Nhanganyaya, hunhu uye magadzirirwo ezvinhu
Zvinhu zvakagadzirwa nemakemikari slurry iPCI-CW high permeability modified epoxy resin. Zvinhu izvi zvine simba guru rekubatana, uye zvinogona kurapwa patembiricha yemumba, nekuderera kushoma mushure mekugadziriswa, uye panguva imwe chete, zvine hunhu hwesimba remakanika uye kuramba kupisa kwakasimba, saka zvine mhedzisiro yakanaka yekumisa mvura uye yekumisa kubuda kwemvura. Rudzi urwu rwezvinhu zvinosimbisa grouting runoshandiswa zvakanyanya mukugadzirisa nekusimbisa mapurojekiti ekuchengetedza mvura. Pamusoro pezvo, zvinhu izvi zvinewo zvakanakira zvemaitiro ari nyore, mashandiro akanaka ekudzivirira nharaunda, uye kusasvibisa nharaunda.
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2.1.2 Matanho ekuvaka
Kutanga, tsvaga misono uye maburi ekuboorera. Chenesa mipata inowanikwa munzira yekudonhedza mvura ine simba guru wobva wadzosera pasi pekongiri kumashure, wotarisa chikonzero chemipata uye kwainobva mipata. Uye shandisa nzira yekubatanidza gomba rakatsemuka negomba rakanamira pakuboorera. Mushure mekuboorera gomba rakanamira, zvinodikanwa kushandisa mhepo ine simba guru nepfuti yemvura ine simba guru kutarisa gomba nemhara, uye kupedzisa kuunganidzwa kwedata rehukuru hwemipata.
Chechipiri, maburi ejira, maburi ekuvhara uye misono yekuvhara. Zvakare, shandisa mhepo ine simba guru kubvisa gomba rekugadzira richagadzirwa, uye bvisa tsvina yakaiswa pasi pegomba uye pamadziro egomba, wobva waisa chivharo chekugadzira gomba wochiisa pagomba repombi. Kuziva maburi ekugadzira neanoburitsa mweya. Mushure mekunge maburi ekugadzira arongwa, shandisa PSI-130 quick plugging agent kuvhara maburi, uye shandisa epoxy simende kusimbisa kuvharwa kwemaburi. Mushure mekuvhara gomba, zvinodikanwa kucheka gomba re2cm rakafara uye 2cm kudzika nenzira yekutsemuka kwekongiri. Mushure mekuchenesa gomba rakacheneswa nemvura inodzoserwa shure, shandisa chivharo chekukurumidza kuvhara gomba.
Zvakare, mushure mekutarisa mhepo inofefetera yepombi yakavigwa, tangai basa rekugadzira gomba. Munguva yekugadzira gomba, makomba akaonda ane nhamba dzisina kuenzana anotanga azadzwa, uye huwandu hwemakomba hunorongwa zvichienderana nehurefu hwebasa chairo rekuvaka. Pakugadzira gomba, zvakakosha kufunga zvizere nezvemamiriro ekugadzira gomba remakomba ari pedyo. Kana makomba ari pedyo aita gomba, mvura yese iri mumakomba ekugadzira gomba inofanira kudhonzwa, yobva yabatanidzwa nepaipi yekugadzira gomba uye yoiswa gomba. Zvichienderana nenzira iri pamusoro, gomba rega rega rinoiswa gomba kubva kumusoro kusvika pasi uye pasi kusvika kumusoro.
Kurapa nekudzivirira kumiswa kwekongiri mugomba rinoburitsa mafashamo echiteshi chemagetsi emvura
Pakupedzisira, grout inoguma yakajairwa. Muyero wekumanikidzwa kwemakemikari ekukwesha kongiri munzvimbo inorasikira mvura ndiyo kukosha kwakajairika kunopihwa nedhizaini. Kazhinji, kumanikidzwa kwepamusoro kwegrouting kunofanirwa kunge kuri pasi kana kuti kwakaenzana ne1.5 MPa. Kuonekwa kwemugumo wegrouting kunoenderana nehuwandu hwejekiseni uye saizi yekumanikidzwa kwegrouting. Chinodiwa chikuru ndechekuti mushure mekunge kumanikidzwa kwegrouting kwasvika pakakwirira, grouting haizopindi mugomba mukati me30mm. Panguva ino, kushanda kwekubatanidza pombi uye kuvhara slurry kunogona kuitwa.
Zvikonzero uye matanho ekurapa maburi ari mugero unoburitsa mvura yeLuding Hydropower Station
2.2.1 Kuongorora zvikonzero zvemugero wekuburitsa mvura muLuding Hydropower Station
Chekutanga, zvinhu zvakagadziriswa hazvina kuenderana zvakanaka uye hazvina kugadzikana. Chechipiri, huwandu hwesimende muhuwandu hwemusanganiswa hwakakura, izvo zvinoita kuti simende ibudise kupisa kwakawanda kwemvura. Chechipiri, nekuda kwekuwedzera kukuru kwemafuta ematombo munzizi, kana tembiricha ikachinja, maaggregates nezvinhu zvinonzi coagulating zvinozobva panzvimbo imwe. Chechitatu, kongiri yeHF ine zvinodiwa zvakanyanya pakuvaka, zvakaoma kugona kugadzira, uye kudzora nguva nemaitiro ekudedera hakugone kusangana nezvinodiwa zvakajairwa. Pamusoro pezvo, nekuti mugero wekuburitsa mvura yeLuding Hydropower Station unopinda, mhepo inoyerera nesimba inoitika, zvichikonzera tembiricha yakaderera mukati memugero, zvichikonzera musiyano mukuru wetembiricha pakati pekongiri nenzvimbo yekunze.
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2.2.2 Kurapa nekudzivirira maburi ari mugomba rinobuda mvura
(1) Kuti kuderedzwa kwemhepo inofefetera mugomba uye kudzivirira tembiricha yekongiri, kuitira kuderedza mutsauko wetembiricha pakati pekongiri nenzvimbo yekunze, furemu yakakombama inogona kuiswa panobuda gomba rinodururwa, uye keteni rekanvasi rinogona kuturika.
(2) Zvichienderana nezvinodiwa pakusimba kwekongiri, chiyero chekongiri chinofanira kugadziriswa, huwandu hwesimende hunofanira kuderedzwa zvakanyanya sezvinobvira, uye huwandu hwemadota anobhururuka hunofanira kuwedzerwa panguva imwe chete, kuitira kuti kupisa kwekongiri kuderedzwa, kuitira kuderedza kupisa kwemukati nekunze kwekongiri.
(3) Shandisa komputa kudzora huwandu hwemvura inowedzerwa, kuitira kuti chiyero chemvura nesimende chidzorwe zvakasimba mukusanganisa kongiri. Zvinofanira kucherechedzwa kuti panguva yekusanganisa, kuti kuderedzwa tembiricha yenzvimbo inobuda zvinhu zvisina kugadzirwa, zvakakosha kushandisa tembiricha yakaderera. Pakutakura kongiri muzhizha, matanho anoenderana ekudzivirira kupisa uye ekutonhodza anofanira kutorwa kuti kuderedzwa kupisa kwekongiri panguva yekufambisa kubudirire.
(4) Maitiro ekuzunguza anofanira kudzorwa zvakasimba mukuvaka, uye mashandiro ekuzunguza anosimbiswa nekushandisa tsvimbo dzinochinjika dzemubato dzine dhayamita ye100 mm ne70 mm.
(5) Dzora zvakasimba kumhanya kwekongiri ichipinda mudura, kuitira kuti kumhanya kwayo kuri kukwira kuve pasi kana kuti kwakaenzana ne0.8 m/awa.
(6) Wedzera nguva yekubvisa mafomu ekongiri kusvika ka1 pane nguva yekutanga, kureva, kubva pamaawa makumi maviri nemana kusvika kumaawa makumi mana nemasere.
(7) Mushure mekuputsa fomu, tumai vashandi vakakosha kuti vaite basa rekugadzirisa simende nekukasika. Mvura yekugadzirisa inofanira kuchengetwa pa20℃ kana kupfuura mvura inodziya, uye pamusoro pesimende inofanira kuchengetwa yakanyorova.
(8) Thermometer inovigwa mudura rekongiri, tembiricha iri mukati mekongiri inotariswa, uye hukama huripo pakati pekuchinja kwetembiricha yekongiri nekuburitswa kwematombo hunoongororwa zvinobudirira.
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Nekuongorora zvikonzero uye nzira dzekurapa tangi rekubuditsa mvura yeShuanghekou Hydropower Station netangi rekubuditsa mvura yeLuding Hydropower Station, zvinozivikanwa kuti yekutanga inokonzerwa nemamiriro asina kunaka ejiyoroji, kurapwa kusina kunaka kwemajoini ekuvaka, majoini anotonhora uye mapako eduxun panguva yekudurura kongiri. Matsemuka ari mutangi rekubuditsa mvura yemvura anokonzerwa nekusabatanidzwa zvakanaka kwemapulagi uye grouting anogona kudziviswa zvinobudirira nekugadzira makemikari ne epoxy resin yakagadziriswa zvakanyanya; matsemuka ekupedzisira anokonzerwa nekupisa kwakanyanya kwekongiri, Matsemuka anogona kurapwa uye kudzivirirwa zvinobudirira nekuderedza huwandu hwesimende zvine mwero uye kushandisa polycarboxylate superplasticizer uye C9035 concrete materials.
Nguva yekutumira: Ndira-17-2022
