Njira yobowola yosasunthika komanso kuyambitsa zida

Njira yobowola ndi mizu ndiyo kugwiritsa ntchito pobowola ndi kubzala mulu wokhazikika pobowola, kusakaniza mozama ndi kusakaniza kwapansi, ndikuyika milu yopangiratu, kutanthauza kuti milu ya konkire yokhazikika (PHDC) isanakwane. tensioned Mafotokozedwe osiyanasiyana ndi zitsanzo za prestressed konkire milu mipo (PHC) ndi gulu analimbitsa prestressed konkire milu mipo (PRHC) pamodzi osakaniza zosiyanasiyana kukwaniritsa zofunika kamangidwe, ndipo ikuchitika molingana ndi kubowola, kukulitsa pansi, grouting, implantation ndi njira zina. . Njira yomanga maziko a mulu. Chifukwa cha mawonekedwe a njira yopangira pobowola mokhazikika ndi mulu wa mizu, mulu wa muluwo ukhoza kudutsa ma interlayers osiyanasiyana a geological, ndipo mulu wake ndi 500 ~ 1200mm. Pakali pano, pazipita zomanga kuya akhoza kufika pafupifupi 85 mamita mobisa, ndi mulu kumira makina limodzi akhoza kufika oposa 300m patsiku, ndi phindu zachuma ndi mkulu. za mitundu ina ya milu.

1. Makhalidwe a njira yomanga

①Palibe kutulutsa nthaka, kugwedezeka, phokoso lochepa; kuthetsa mavuto omanga a matope osungira matope osungira khoma kugwa, kuwongolera zinyalala, ndi kutulutsa matope;

② Ukadaulo wapadera wokulira pansi, kukula kwapansi kwake ndi 1 ~ 1.6 nthawi za dzenje, kutalika kwapansi ndi nthawi 3 pobowola, mtundu wa muluwo ndi wabwino, mulu wokwera pamwamba umatha kulamuliridwa, komanso mtundu wa zomangamanga. ndi yosavuta kulamulira;

③Ikani mulu wopangidwa kale mu dzenje, ndipo dothi la simenti limalimba kupanga mulu wa simenti wokutidwa ndi dothi lolimba, ndipo matope a simenti akunja amateteza kwambiri muluwo;

④Kuponderezana koyima mwamphamvu kwambiri, kutulutsa ndi kukana kopingasa;

Kupyolera mukugwiritsa ntchito mitundu yosiyanasiyana ya milu monga milu ya nsungwi ndi milu yowonjezereka yophatikizika, komanso njira zokulira pansi ndi njira zopangira ma grouting, kukanikiza, kutulutsa ndi kunyamula kopingasa kwa maziko a milu kumawongolera kwambiri;

⑤ kupulumutsa mphamvu ndi kuteteza chilengedwe;

Poyerekeza ndi milu yotopetsa pansi pamikhalidwe yomweyi: kupulumutsa madzi 90%, kugwiritsa ntchito mphamvu kupulumutsa 40%, kutulutsa matope kumachepetsa 70%, kumanga bwino kumawonjezeka 50%, kupulumutsa 10% ~ 20%;

⑥ mapangidwe osiyanasiyana;

Malinga ndi kupsinjika kwa milu, mitundu yosiyanasiyana ya milu imatha kuphatikizidwa, motere:

2. ndondomeko ya ndondomeko

Njira yopangira dzenje yosakaniza chitoliro chobowola ndi chitoliro chobowola auger mu ntchito youma imatengedwa, dzenjelo limabowoleredwa molingana ndi kuya kwa mapangidwe, ndipo kumapeto kwa mulu kumasinthidwanso molingana ndi kukula kwake (m'mimba mwake ndi kutalika). Pambuyo pomaliza kukonzanso, mulu womaliza simenti slurry ndi The simenti slurry kuzungulira mulu amabowoleredwa pamene grouting. Kubowola kukamalizidwa, muluwo umayikidwa pamlingo wopangidwira ndi kulemera kwake kwa muluwo, ndipo nsonga ya mulu ndi simenti yozungulira muluyo imalimba, kotero kuti muluwo, nsonga ya mulu ndi simenti yozungulira. muluwo umalimba. Pangani thupi ndikugwira ntchito limodzi.

3. Ntchito yomanga

Njira yomangira milu ya static yobowola ndi kuyika milu ndikugwiritsa ntchito chipangizo chapadera cha SDP kubowola mabowo malinga ndi kapangidwe kake. Pansi pa dzenjelo amasinthidwanso molingana ndi momwe adapangidwira komanso kutalika kwake. Kwezani kubowola, ndipo pambuyo grouting anamaliza, kudalira kudzilemera kulemera kwa mulu kuika mulu mu kapangidwe okwera, ndi kulimbitsa simenti slurry kumapeto mulu ndi kuzungulira mulu, kuti mulu ndi olimba. nthaka imaphatikizidwa. The kunyamula mphamvu milu makamaka akamagwira mulu mbali mikangano ndi mulu nsonga kukana. Njira yopangira milu yokhazikika yobowola ndi kuyika milu imawonjezera mphamvu yonyamula nsonga ya muluyo pokulitsa pansi pansonga ya mulu, ndikuwonjezera kukana kwa mulu wa muluwo pobaya matope a simenti kumbali ya mulu, yomwe imatha kusewera kwathunthu. ubwino wa mphamvu mkulu wa prefabricated mulu thupi ndi kupititsa patsogolo kubala mphamvu ya maziko mulu.

Zomangamanga:

Kubowola: Kubowola pobowola udindo, kusankha yoyenera pobowola liwiro malinga ndi mmene zinthu zilili, pa pobowola ndondomeko, jekeseni madzi kapena bentonite osakaniza malinga ndi mmene geological mikhalidwe, yokonza dzenje thupi ndi kuteteza khoma;

Kukulitsa pansi: Pambuyo pokonza kumalizidwa, pansi pa muluwo amatsegulidwa kuti abowole mabowo kuti akulitse mapiko kudzera muukadaulo waukadaulo wowongolera ma hydraulic, ndipo pansi amakulitsidwa m'magawo malinga ndi kukula kwa mapiko. Ndipo kudzera mu kachipangizo kasamalidwe kuti aziyang'anira pansi kukulitsa mkhalidwe mu nthawi yeniyeni;

Jakisoni wa slurry wa mulu wa simenti: Pambuyo pakukulitsa pansi kumalizidwa, mulu womaliza wa simenti umayikidwa, ndipo chobowoleracho chimakwezedwa mobwerezabwereza ndikutsitsidwa panthawi ya jekeseni kuti zitsimikizire kuti mbali zonse zakukulira pansi zimabayidwa ndipo mulu womaliza wa simenti umakhala wofanana. ;

Jekeseni wa simenti slurry kuzungulira mulu ndi kukokera pobowola: Pambuyo jekeseni wa simenti slurry kumapeto mulu, kuyamba kutulutsa chitoliro kubowola, kubaya simenti slurry kuzungulira mulu ndi kusonkhezera mobwerezabwereza;

Kubzala milu ndi kutumiza milu: Chobowola chikatulutsa mapaipi onse, yambani kubzala milu. Panthawi yobzala milu, yang'anirani nthawi iliyonse kuti mutsimikizire kuti muluwo wakwera molunjika ndikuwonetsetsa kuzama kwa kubzala milu;

Shift: Pitani kumalo otsatira mulu ndikubwereza masitepe omwe ali pamwambapa;

Chachinayi, kuchuluka kwa kugwiritsa ntchito njira yomanga

①Yoyenera kunyamula kukanikizana koyima, kukokera ndi katundu wopingasa;

② Dothi logwirizana, silt, mchenga, nthaka yodzaza, nthaka yophwanyidwa (miyala) yamwala, ndi mapangidwe a miyala okhala ndi zovuta za geological, interlayers ambiri, nyengo yosagwirizana, ndi kusintha kwakukulu kwa kuuma ndi kufewa;

③Pakakhala nyumba (zomanga) kapena mapaipi apansi panthaka ndi zida zina zaumisiri pafupi ndi malo omangapo, kufinya kwa nthaka kumafunika kuwongoleredwa;

④ Dothi labwino lomwe ndi lovuta kuti milu yoboola ipange maenje, monga mchenga wokhuthala ndi zopingasa miyala kapena dothi la silt lomwe lili ndi chinyezi chambiri (kubwezeretsanso nthaka);

⑤ Kuzama kwa stratum yonyamula kumasiyana kwambiri, ndipo n'zovuta kuweruza stratum; nthaka yofewa maziko, maziko opanda stratum yoyenera;

⑥ Pali maziko akale a mulu pansi pa nthaka ndi wosanjikiza wa slag wopitilira 3 metres wodzazidwa pamwamba.

5. Static pobowola ndi rooting njira zida

Chida chobowola chosasunthika ndi njira yodulira mizu ndi njira yopangira pobowola ndi chimango cha mulu. Poyambirira, idagwiritsidwa ntchito ndi chimango cha mulu umodzi womanga, womwe unkafuna kuwonjezeredwa kangapo kwa mapaipi obowola, ndipo ntchito yomangayo inali yochepa. Tsopano imakhala ndi chimango cha milu iwiri, ndipo njira ziwiri zobowolera zimayimitsidwa nthawi imodzi. Kubowola mosinthana Mzati ukagwiritsidwa ntchito, kuya kumatha kufika 85m, zomwe zimapangitsa kuti ntchito yomanga ikhale yabwino kwambiri.

Njira yobowola ndi kuyika mizu imatengera pulogalamu yanzeru yoyang'anira ntchito yomanga kuti iwonetsetse momwe ntchito yomanga ikugwirira ntchito munthawi yeniyeni kuti zitsimikizire mtundu wa zomangamanga. Zosintha zosiyanasiyana zomanga zimawonekera bwino pachiwonetsero ndikusungidwa zokha.

Chobowolacho chimagwiritsa ntchito ukadaulo wapamwamba wokulirapo wamafuta pansi, kukula kwapansi kwake ndi nthawi 1 ~ 1.6 pobowola, ndipo kutalika kwapansi kumafikira katatu pakubowola; molingana ndi mikhalidwe yosiyana ya geological, zomangamanga zimatha kusankha kubowola koyenera kapena kubowola kwapadera;

Universal kubowola pang'ono: oyenera dothi lamchenga

Kubowola kwapadera:

M'zaka zaposachedwa, njira yobowoleza yokhazikika yakhala ikugwiritsidwa ntchito kwambiri ku Shanghai, Ningbo, Hangzhou ndi mizinda yozungulira, kupereka zosankha zambiri zomangira milu, komanso zomanga zofananira ndi miyezo yaukadaulo zapangidwanso motsatira. Njira yatsopano yopangira maziko obiriwira omwe ndi obiriwira komanso okonda zachilengedwe, ali ndi ntchito yomanga bwino komanso yopangira milu, ndipo ndiyoyenera kukwezedwanso.

Nthawi yotumiza: Aug-11-2023