Ibhulorho yaseZhongtang kuhola we-xx inobude obuphambili be-32.5 + 4 × 45 + 32.5m kunye necandelo elilinganayo eliqinisiweyo eliqinisiweyo lebhokisi yebhanti eqhubekayo (indlela yokubeka i-post-tensioning), enobude obupheleleyo be-245.9m. Umjikelo webhokisi ligumbi elinye, ubude bomqadi embindini yi-308.25cm, ububanzi bophahla yi-1100cm (ububanzi bedekhi yebhulorho yi-12m), kwaye ububanzi beplate esezantsi yi-480cm. Iwebhu ithambekele, kwaye umgama ophakathi kwipleyiti ephezulu yi-570cm. Iziphelo ze-beam kunye nombindi we-boam yonke zibonelelwa ngeentsimbi, kwaye ezinye zibonelelwa nge-diaphragms rhoqo kwi-15m.
Isiseko se-pier yebhulorho ephambili yi-4 ebhokile yokuphosa-indawo yemfumba kunye nobubanzi be-120cm, efakwe kwi-bedrock ngaphezu kwe-50cm. Umzimba we-pier wamkela isakhiwo sekholamu ephindwe kabini yekhonkrithi eqinisiweyo kunye nobubanzi be-180cm.
Xa ibhulorho yakhiwe, indlela ye-SSY isetyenziswa, oko kukuthi, indlela yokutyhala ngamanqaku amaninzi isetyenziselwa ukumisa umqadi. Iimpawu zale ndlela zezi: amandla okusabela okuthe tye xa utyhala (utsalwa) umzimba womqadi uyahlakazwa kwaye usebenze kwipier nganye, kwaye umsebenzi wokutyhala (ukutsala) unokulawulwa embindini. Ekubeni kungabikho iipari zexeshana ngexesha lomsebenzi, isiphelo sangaphambili sebhokisi lebhokisi sixhunywe kwi-truss yensimbi eyenziwe nge-30m ubude njengebhodi yesikhokelo.
Xa isixhasi sebhokisi esenziwe kwangaphambili sityhalelwa phezulu, siqhutywa kumjikelo ngokweenkqubo zokuqhubela phambili→umqadi wokuphakamisa→uwisa→ukuqhubela phambili. Umzobo 1 ubonisa imeko yomjikelezo.
Umzobo wenkqubo yokutyhala
1——Isilinda esithe nkqo;2——Tsala iNtloko;3——Slideway;4——IpheuRod;5——HIsilinda esisezantsi
Ingabonwa ukuba ukuqaphela lo mjikelo weprogram, i-cylinder ethe tyaba igqibezela isenzo sokutyhala ibhokisi yebhokisi ngesixhobo sokuslayida, kwaye i-cylinder ethe nkqo igqibezela isenzo sokuphakamisa nokuwisa umqadi. Oko kukuthi, i-cylinder ethe tye kunye ne-cylinder ethe nkqo yenziwa ngokuhlukileyo.
1. Inkqubo ye-Hydraulic ye-multi-point pusher beam kunye nokulawula kwayo
Zombini i-cylinder ethe tyaba kunye ne-cylinder ethe nkqo iqhutywa nge-hydraulically kwaye ilawulwa ngumbane. Ubude obupheleleyo bebhokisi lebhokisi eliza kutyhalwa kwibhulorho yi-225m, kwaye imitha yomgca ngamnye inobunzima be-16.8t, kunye nobunzima obumalunga ne-3770t. Ngoko ke, iisilinda ezinqamlekileyo ze-10 kunye ne-24 iisilinda ezithe nkqo (uxinzelelo lweoyile yi-320kg / cm2 kwaye imveliso yi-250t) ihlelwe. Kukho ii-piers ezi-5 ezineesilinda ezithe tye, ezi-2 zepier nganye; kukho 6 piers for nkqo iisilinda, 4 pier nganye.
Ijekhi ethe nkqo igqibezela ukunyuswa nokuthoba umqadi. Kwinkqubo yokwakha, yonke ibhuloho ayidingeki ukuba ihambelane, kwaye ii-piers kufuneka zihlulwe, ngoko akukho ngxaki yolawulo oluphakathi. Ulawulo lwayo lombane lunokugqiba ukuphakamisa okuqhubekayo okanye ukuthoba i-jack, kwaye unokugcwalisa ifom ye-jog.
Ijekhi ethe tyaba igqibezela intshukumo yokutyhala umqadi. Inkqubo yokwakha idinga ukuba ibhulorho yonke ihambelane, oko kukuthi, ukuphuma okanye ukuyeka ngaxeshanye, ngoko ke ulawulo oluphakathi lwe-jack ethe tyaba lusekwe, kwaye ibhokisi yombane yolawulo oluphakathi imiselwe le njongo.
Ukusetyenziswa kweejekhi ezinqamlekileyo kunye neejack ezithe nkqo zinyuka ngokuthe ngcembe, kwaye i-box girder i-prefabricated 15m ngomjikelezo ngamnye. Ngokukhula okuqhubekayo kwebhokisi lebhokisi, inani leejekhi ezisetyenzisiweyo landa ngokuthe ngcembe. Kwimijikelo embalwa yokugqibela yokwenziwa kwangaphambili, zonke iiseti ezili-10 zeejekhi ezithe tyaba kunye neejacks ezithe nkqo ezingama-24 zisetyenziswa.
Ukuze udibanise i-pier nganye kunye negumbi lokulawula eliphakathi, sifakele inkqubo yokuhambisa isandi se-intercom. Ukuziqhelanisa kubonise ukuba inkqubo yokuhanjiswa kwe-hydraulic kunye neendlela zokulawula ezidweliswe ngasentla zithembekile ekusebenziseni.
Masithethe ngamava athile eengxaki ezininzi zokuhanjiswa kwehydraulic ye-push frame beam indlela yokukhangela.
1. Ingxaki yokulawulwa koxinzelelo lwemigangatho yenkqubo ye-hydraulic. Ingxaki yokulawulwa kwengcinezelo yesinyathelo-nge-nyathelo ibekwe phambili ngenxa yokuqwalaselwa okuhlukeneyo kokuxhatshazwa kwe-static kunye nokuxhatshazwa okuguquguqukayo xa ibhokisi lebhokisi lihamba. Ngaphambili, kwakusoloko kukholelwa ukuba inkqubo ye-hydraulic kufuneka ibe neengcinezelo ezimbini okanye ezintathu zeoli: xa ukuxhatshazwa kwe-static friction kunqotshwa, kusetyenziswe uxinzelelo olukhulu lweoli; kunye noxinzelelo oluncinci lweoyile lusetyenziswa xa umqadi webhokisi utyibilika. Indlela yokutshintsha i-hydraulic system ngokudibanisa iivalvu ezahlukeneyo zokunceda ezisetyenzisiweyo. Ngale ndlela, inkqubo ye-hydraulic kunye nolawulo lwayo luyinkimbinkimbi ngakumbi. Umkhuba wethu ubonakalise ukuba uxinzelelo lweoyile yenkqubo ye-hydraulic ayixhomekanga ngokwalo, kodwa ekuchaseni kwangaphandle kwejack. Oko kukuthi, xa inkqubo ye-hydraulic isebenza, uxinzelelo lweoyile alunqunywanga ngubuninzi kwi-nameplate yepompo yeoli, kodwa ngokuchasana okupheleleyo okuhlangatyezwana nayo ngexesha lokuhamba kweoyile ibuyela kwitanki yeoli emva kokushiya impompo. . Ukuba i-jack ayinakho ukuchasana (umthwalo), uxinzelelo lwempompo yeoli luchongwa kuphela ngokuchaswa kombhobho; ukuba ioli evela kumpompo yeoli ingena ngokukhawuleza kwi-atmosphere okanye itanki yeoli, uxinzelelo lwepompo yeoli luya kuba zero; ukuba ukuchasana (umthwalo) R ye-jack iyanda, uxinzelelo lwepompo yeoli luye lwanda. Xa i-jack ikhutshwe, uxinzelelo lwempompo yeoli luchongwa yi-valve yendlela enye; xa i-jack ilayishiwe, uxinzelelo lwempompo yeoli, oko kukuthi, uxinzelelo lweoyile yenkqubo, luya kugqitywa ngokuchaswa kwe-jack. Uxinzelelo lweoli emsebenzini luchongwa ngumthwalo wejack. Oko kukuthi, uxinzelelo lweoyile lwenkqubo ye-hydraulic luya kutshintsha ngokwalo kunye nokuchasana kwangaphandle, ngoko ke ukulawulwa kwengcinezelo ngamanyathelo ayimfuneko.
2. Umba wongqamaniso lweejack ezithe tyaba. Inkqubo yokutyhala ifuna ukuba iijekhi ezithe tyaba ezisekhohlo nasekunene kufuneka zityhale umqadi phambili ngesantya esifanayo, kungenjalo umqadi uya kuphambukiswa xa utyibilika. Ngokuqinisekileyo, into yokuqala abantu abayiqwalaselayo kukuba amandla asetyenziswa ngasekhohlo nasekunene iijacks ezithe tyaba kumzimba womqadi kufuneka zilingane, zichanekile. Xa i-symmetry ekhohlo kunye nekunene ye-boam body igqwesileyo, kwaye ukuchasana kuyalingana nekhohlo nasekunene, ngokuqinisekileyo, amandla asetyenziswa ngasekhohlo nasekunene kweejack ezithe tye kufuneka zilingane. Ingqwalasela yesibini kukuba isantya sasekhohlo kunye nesokunene kufuneka silingane. Ngale ndlela, umqadi unokuhamba kakuhle kwaye ngokuthe ngqo. Nangona kunjalo, kunzima kumzimba we-beam ukuqinisekisa ukuba icandelo ngalinye kufuneka lilingane ngokugqibeleleyo ngasekhohlo nasekunene, kwaye ukuchasana ngasekhohlo nasekunene kufuneka kulingane. Uxinzelelo lweoyile olunxulumene nenkqubo ekhankanywe ngasentla inqunywe ukuchasana kwangaphandle. Inokucinga ukuba i-jacks ekhohlo nasekunene kufuneka isebenze phantsi kweemeko ezahlukeneyo zoxinzelelo lweoyile, ngoko ngaba isantya seejacks zasekhohlo kunye nekunene ziya kulungelelaniswa ngeli xesha? Ukwenza umzekeliso, kucingelwa ukuba ipere enye yeejekhi zepier enye esebenzayo. Ekubeni sibeka impompo enye ngejekhi enye, oku kusombulula ingxaki yongqamaniso lwesantya kakuhle kakhulu. Ngenxa yokuba impompo yeoli esiyisebenzisayo yimpompo yokufuduswa kwe-quantitative positive, kwithiyori, kungakhathaliseki ukuba ingakanani imveliso ye-oyile yokumelana ne-oyile edibana nayo (oko kukuthi, kungakhathaliseki ukuba uxinzelelo lwe-oyile luphezulu kangakanani na), izinga lokuhamba kwayo. engatshintshanga. Ke ngoko, iijacks zasekhohlo nasekunene kufuneka zilungelelaniswe. Kakade ke, esi sigqibo sinokuthi sithatyathelwe kwimeko yeepier ezimbini ezineentloko ezine, iipayi ezintathu ezineentloko ezintandathu, iipayi ezine ezineentloko ezisibhozo, okanye iipayi ezintlanu ezineentloko ezilishumi. Ngoko ke, indlela yethu yepompo enye kunye nomphezulu omnye unokuqonda kangcono ingxaki yokuvumelanisa kwesobunxele nasekunene. Ukuziqhelanisa kuye kwangqina ukuba kumqadi wokutyhala, umgca osembindini webhokisi awulungiswanga (ngokucacileyo, kufuneka ususwe kancinci ukusuka ekhohlo ukuya ekunene kodwa unokuhlala ugcinwe kuluhlu oluthile). Inkqubo yokwakha ifuna ukubeka esweni ngokusondeleyo ukutenxa komgca weziko. Ukuba idlula i-2cm, kufuneka ilungiswe (ngesikhokelo esisecaleni). Ngethuba lenkqubo ye-push-up, inani lezilungiso lincinci kakhulu. Isihlandlo esinye okanye ezibini kuphela ekutyhaleni okungamashumi amathathu (i-15m yebhokisi yebhanti). Oku kunokuqwalaselwa njengesiphumo esidityanisiweyo sezinto ezininzi ezinenjongo, kuba ngokubhekiselele kumatshini we-hydraulic, ipompo ye-oyile inephutha lokuhamba, i-jack ineengxaki zokuvuza zangaphakathi (ijack nganye yahlukile, kwaye ipiston inokuba kwiindawo ezahlukeneyo. ), kunye nenkqubo Ukuvuza kwezinye izixhobo ngaphakathi, njl., engangqubaniyo nesigqibo sethu esingentla.
3. Umba wongqamaniso lweejack ezithe nkqo. Iijekhi zethu ezithe nkqo zisebenza ngempompo ezineejekhi ezine, kwaye ivalve yokuvumelanisa kufuneka imiselwe, kuba ivalve yokuvumelanisa (okanye ivalve ye-diverter) inokwenza iijekhi ezininzi phantsi kwemithwalo eyahlukeneyo (ukuchasana) isafumana umlinganiselo omiselweyo okanye unikezelo lweoyile olulinganayo ukufikelela. ungqamaniso. Kodwa ngokuqwalasela ukuba ivalve yokuvumelanisa ineendawo ezimbini zokuphuma. Ukuze kube lula ukwakheka kwenkqubo, akukho valve yongqamaniso efakiweyo. Ukuqwalasela ukuba izisindo ezisekhohlo kunye nezichanekileyo zebhokisi lebhokisi zinomlinganiso, akuyona ingxaki enkulu ukwenza njalo. Ukuziqhelanisa kubonise ukuba uqikelelo luchanekile, i-jack ethe nkqo iphakama kwaye iwe ngokuhambelanayo, kwaye akukho ngxaki ekuphakanyisweni nasekuweni komqadi.
Ixesha lokuposa: May-16-2022