PVCM Double Wall Corrugated Bomba Vijijini Bomba Mtandao Ujenzi Mpango: Kuzuia kuzeeka na Ufungaji wa gharama nafuu

2025-08-18


matibabu ya maji taka vijijini ni mradi muhimu wa riziki ili kuboresha mazingira ya kuishi, na ujenzi wa mtandao wa bomba, kama kiungo cha msingi, unakabiliwa na pointi za maumivu za upinzani wa hali ya hewa wa nyenzo na gharama kubwa ya ujenzi. Bomba la bati la ukuta wa PVCM limekuwa chaguo bora kwa mtandao wa bomba la maji taka vijijini kutokana na faida zake za utendaji bora wa kupambana na kuzeeka na gharama ya chini ya ufungaji. Kuchanganya mazoezi ya uhandisi, karatasi hii inaunda seti ya mipango ya ujenzi wa mtandao wa bomba la maji taka inayofaa kwa matukio ya vijijini kutoka kwa vipengele vya sifa za nyenzo, mchakato wa ujenzi, hatua za kupambana na kuzeeka na udhibiti wa gharama.

Kwanza, uteuzi wa nyenzo: utendaji wa kupambana na kuzeeka kama msingi

PVCM bomba la bati la ukuta mara mbili linatokana na kloridi ya polyvinyl (PVC), na upinzani wa hali ya hewa wa nyenzo unaboreshwa kwa kuongeza viungo vilivyorekebishwa kama vile antioxidants, vinyonyaji vya ultraviolet na masterbatch nyeusi ya kaboni Ukuta wa ndani ni laini ili kupunguza upinzani wa mtiririko wa maji, na muundo wa bati kwenye ukuta wa nje huongeza ugumu wa pete, ambayo inaweza kuhimili shinikizo la udongo na mzigo wa ardhi. Kabla ya ujenzi, ripoti ya kiwanda ya nyenzo inahitaji kuangaliwa, ikizingatia nguvu ya hydrostatic (20 °C 100h16MPa), utendaji wa athari ya uzito (9/10 hauvunjiki kwa 0 °C) na fahirisi ya upinzani wa hali ya hewa (80% kiwango cha uhifadhi wa nguvu ya kukaza baada ya kuzeeka kwa kasi bandia) ili kuhakikisha kuwa nyenzo hiyo inafaa kwa mazingira ya kuweka hewa ya wazi ya vijijini.

Pili, muundo wa mchakato wa ujenzi wa gharama nafuu

#1. Boresha uchimbaji wa mitaro ili kupunguza kiasi cha earthwork

Maeneo ya vijijini ni udongo wa udongo au mchanga. 0.6-1 m) imepitishwa, ambayo inapunguza kiasi cha uchimbaji wa ardhi kwa 30% ikilinganishwa na mpango wa jadi wa kuzika kina. Upana wa mtaro unadhibitiwa kulingana na "kipenyo cha nje cha bomba + 0.6m," mteremko wa mteremko unarekebishwa kulingana na aina ya udongo (dongo 1: 0.5, mchanga 1: 1.25), na mchanganyiko wa uchimbaji wa mitambo na mavazi ya mwongozo hutumiwa ili kuepuka uchimbaji kupita kiasi na kusumbua udongo wa asili.

#2. Uunganisho wa tundu huboresha ufanisi wa ufungaji

Uunganisho wa bomba hupitisha mchakato wa mchanganyiko wa "tundu la pete ya mpira + uimarishaji wa muunganisho wa umeme": kwanza kuingiza pete ya mpira kwenye groove ya tundu, tumia lubricant na kisha polepole kusukuma tundu na kiimarisha waya ili kuhakikisha kibali sare. ; kwa nodi muhimu (kama vile zamu na kipenyo tofauti), sleeve ya muunganisho wa umeme hutumiwa kuunganisha, na bomba na sleeve huunganishwa katika moja kupitia inapokanzwa kwa mashine maalum ya kulehemu, na nguvu ya kiolesura hufikia zaidi ya 90% ya mwili wa bomba. Utaratibu huu huokoa 50% ya masaa ya mtu ikilinganishwa na uhusiano wa flange, na zamu moja inaweza kuweka bomba 200-300m.

#3. Gharama na ulinzi wa udhibiti wa backfill uliowekwa daraja Bomba

Backfill inatekelezwa kwa hatua tatu: 1 Mto wa chini wa bomba hupitisha mchanga na changarawe (kipenyo cha chembe 5-10mm), unene wa 100mm, kugonga bandia huepuka makazi ya bomba; 2 Kijazo cha nyuma karibu na bomba kimetengenezwa kwa udongo wa kawaida au mchanga mzuri, na unene wa tabaka wa 200mm, na roller nyepesi ya barabara huviringishwa hadi kiwango cha mshikamano cha 90%; 3 Kijazo cha uso hutumia ardhi iliyochimbwa na huchanganywa na matofali yaliyovunjika 30% au taka za ujenzi (kipenyo cha chembe 50mm) ili kupunguza gharama ya vifaa vilivyonunuliwa.

III. Uhifadhi wa nyenzo na ulinzi wa kuweka

uhifadhi wa bomba unahitaji kufunikwa na kitambaa cha kivuli cha jua ili kuepuka kuzeeka kinachosababishwa na mwanga wa jua wa moja kwa moja; katika hali ya hewa ya joto la juu wakati wa kuweka, weka mapazia ya majani chini ya mtaro ili kulainisha ili kuzuia bomba kuharibika kutokana na tofauti ya joto. Funga mkanda wa kupambana na urujuani kwenye kiolesura, upana sio chini ya 200mm, na kuunda ulinzi maradufu.

#2. Kuzuia na kudhibiti kutu kwa udongo

Kwa udongo wenye tindikali (pH0.3%) ambao unaweza kuwepo katika maeneo ya vijijini, uwekaji wa bomba la safu mbili hutumiwa, safu ya ndani ni bomba la PVCM, na safu ya nje imefungwa na kitambaa cha nyuzi za kioo na kufunikwa na resini ya epoxy ili kutenganisha vyombo vya habari vya babuzi.

IV. Matumizi ya rasilimali za ndani: mchanga wa ndani, changarawe na udongo hupendelewa kama vifaa vya kujaza nyuma, na gharama za usafiri hupunguzwa kwa 40%; kwa ushirikiano na soko la vifaa vya ujenzi vinavyozunguka, mabomba ya ununuzi kwa wingi hufurahia punguzo la 10% -15%.

2. Mashine nyepesi za ujenzi: vichimbaji vidogo (darasa la 1.5t) na mashine za kupiga umeme hutumiwa kuchukua nafasi ya vifaa vikubwa, matumizi ya mafuta hupunguzwa kwa 60%, na inafaa kwa shughuli nyembamba za barabara katika maeneo ya vijijini.

3. Ukandamizaji wa kipindi cha ujenzi: "ujenzi sambamba uliogawanywa" unapitishwa, uchimbaji wa mitaro, uwekaji wa bomba na kujaza nyuma huendelezwa kwa wakati mmoja, na kipindi cha ujenzi wa mtandao wa bomba la kilomita moja hudhibitiwa kwa siku 7-10, na gharama za kazi hupunguzwa kwa 25%.

Tano, Uhakiki wa athari za Uhandisi

Mradi wa matibabu ya maji taka ya vijijini kusini unatumia mpango huu, ukiweka PV Gharama ya ujenzi imepunguzwa hadi yuan 85 / m (mabomba ya jadi ya HDPE ni takriban yuan 120 / m), kuokoa uwekezaji yuan 112,000. Baada ya miaka 3 ya kazi, ukaguzi wa bomba ulionyesha kuwa hakukuwa na mizani kwenye ukuta wa ndani, hakuna nyufa kwenye ukuta wa nje, utendaji wa kupambana na kuzeeka ulikidhi mahitaji ya muundo (matarajio ya maisha ya miaka 50), na kiwango cha ukusanyaji wa maji taka kiliongezeka kutoka 65% hadi 92%.

Mpango wa ujenzi wa mtandao wa bomba la maji taka vijijini wa bomba la ukuta wa PVCM, kupitia uteuzi wa nyenzo za kupambana na kuzeeka, uboreshaji wa mchakato wa ujenzi na ujumuishaji wa rasilimali za ndani, usawa wa "uimara" na "uchumi" ulipatikana. Katika siku zijazo, vitambuzi vya shinikizo vinaweza kusakinishwa kwenye nodi muhimu za bomba pamoja na teknolojia mahiri ya ufuatiliaji ili kuonya juu ya kuziba au uharibifu kwa wakati halisi, na kuboresha zaidi ufanisi wa muda mrefu wa matibabu ya maji taka vijijini.

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