Kugwiritsa dewatering: wellpoints, momwe iwo ntchito ndi ubwino ntchito

Mkulu-atagona pansi madzi kwambiri kulepheretsa ntchito zachuma, mudzaze ngalande kwa zinthu zam'tsogolo kuti kusokoneza njira yomanga, kuchepetsa kudalirika kwawo ndi durability, kusamba kuti achoke maziko. Kuchita izi kapena kuti malo oyenera zomangamanga, kuyambirira dewatering ikuchitika. Wellpoints ntchito madzi kuchepetsa, kulola kuzindikira ntchito ngakhale mu zinthu zovuta kwambiri hydrogeological.

The mfundo za dewatering

Kusankha njira makamaka yothana ndi pansi mkulu zimadalira magawo monga kukula ndi kuya dzenje yomanga nyumba m'tsogolo, nthaka panopa ndi zinthu hydrologic, etc. Komabe, luso lililonse dewatering ntchito ndi cholinga chimodzi .. kutsitsa pansi pa akuya amenewa lomwe iwo sangathe kulepheretsa ntchito yomanga.

Mfundo ambiri dewatering njira ndi kulenga maganizo nyuzi. Nthaŵi zonse ikukoka madzi wosanjikiza dothi ndipamene mtundu wa nyuzi. Mu malo dewatering imachitidwa, wellpoints kupanga malo patsekeke. Kusiyana chofunika madzi ndi mfundo wotsikitsitsa wa matendawa, nyuzi woboola pakati otchedwa maganizo nyuzi.

Kuya ndi utali wozungulira wa maganizo a nyuzi ya amayikidwa mu kudalira pa mfundo zenizeni ndi zinthu. makondawa ikutsatiridwa pa nthawi yonse wofunikila ntchito yomanga. Nkofunika kuti wellpoint dewatering anali wa khalidwe okhazikika, ngati ikukoka ndi anaima, madzi nthaka adzauka mlingo pachiyambi.

kamangidwe wellpoints

zipangizozi zigwirizana chubu, ndi suction mapeto a omwe fyuluta waikidwa. Chifukwa kukhalapo kwa sefa mu unsembe asagwe zolimba wellpoint (nthaka, mchenga, zidutswa thanthwe ndipo zosiyana. D.).

M'mimba mwake ndi kutalika kwa machubu atsimikiziridwa malingana kuzama kwa yomanga m'tsogolo, katundu nthaka ndi bandiwifi ankafuna.

The aligorivimu ntchito wellpoints

Mawerengedwe a wellpoints anachita ulemu kwa m'mimba mwake kofunika nyuzi ya. Mu malo woongoka zida waikidwa mu nthaka pa malo pamene madzi udzachitike. Wellpoints kudzera njira ya olumikizidwa kwa mpope kwa ikukoka madzi. ngalande The chingapangidwe kuchokera ku mphira, zitsulo, kapena mitundu ina ya mipope. Chinthu chachikulu ndi chakuti iwo ali odalirika.

Mmene wellpoint dewatering udzakhala wogwira mtima zimadalira kusankha moyenera mpope mphamvu ndi mawerengedwe kuchuluka ndi awiri woyenera wa chitoliro suction. Komabe, nthawi zina simungathe kutulutsa kukhetsa wathunthu wa nthaka madzi zobala, umene pamwamba wina wosanjikiza aquitard madzi (0.5-1 m) chikhalire. kuchotsa ake limakhalapo poika dongosolo la nthawi kutsegula ndi dewatering ntchito kachitidwe mafoni ikukoka kwa ikukoka madzi mwa iwo.

Wellpoint njira dewatering

Pali njira zosiyanasiyana kuchepetsa mlingo wa pansi kudzera wellpoints.

• Ngati ntchito yomanga chofunika dewatering pang'ono, mapampu wellpoint ndi kudzikonda priming ndi zovuta. Zipangizozo zimatha kuchepetsa mlingo wa madzi nthaka akuya 4,5-8,5 m. Ngati ndi kotheka ntchito mpaka kuya pazipita dewatering amagwiritsa wellpoints wapadera dongosolo tiered.
• Ngati mlingo pansi ayenera kuchepetsedwa kwa akuya mamita 18-20, ntchito ejector wapadera wellpoints mpope madzi - ejector.
• Nato centrifugal mapampu mphamvu mkulu ntchito dewatering kuti akuya pa 20 mamita.
• njira zingalowe zachokera ntchito ejectors yapadera imene malo zingalowe fyuluta. machitidwe oterewa amakhala angathe kuchepetsa mlingo wa madzi pansi zinthu hydrogeological cha kuchuluka kwambiri.

Kusankha njira ina zachokera makhalidwe dewatering pansi, zikhalidwe za asayembekezere ndi mphamvu aquifer lapansi. Komanso, sefa koyefishienti imatengedwa chofunika, m'dera chatsanulidwa m'dera kupanga sayansi ya zomangamanga kapena migodi ntchito, nthawi ya dewatering ndi dewatering makhalidwe a zida.

khazikitsa wellpoints

Posankha unsembe zida dewatering zimadalira maonekedwe a nthaka pa malo a ntchito yomanga m'tsogolo.

• Hayidiroliki unsembe njira ntchito pamene kufunika kuchepetsa mlingo wa madzi yatsoka ndi grained dothi mchenga. Njira imeneyi imaphatikizapo jekeseni madzi mu chipangizo fyuluta, limene adatchithisira pansi.
• Mawotchi unsembe njira akulimbikitsidwa wellpoint dewatering mu miyala ndi dongo dothi. Pakuti zitsime ngalande kale mokhomerera ntchito zipangizo zina zapadera.

The njira mulingo woyenera kwambiri atakhala wellpoints ndipo chiwerengero chawo ofunitsitsa ndi kutalika kwa malo a ngalande ndi nthaka makhalidwe.

Ubwino wa ntchito wellpoint

• Kupezeka kwa zipangizo dewatering.
• Sayenda ndi omasuka unsembe wa dongosolo.
• Musaphwanye ntchito magetsi (wellpoints kuthamanga pa dizilo).
• Mwachangu ntchito.
• Low mtengo wa dewatering poyerekeza ndi njira zina.
• Mkulu Mwachangu.