Kubaka amabati ya cofferdam ni umushinga ukorerwa mumazi cyangwa hafi y'amazi, ugamije gushyiraho ahantu humye kandi hizewe ho kubaka. Kubaka bidasanzwe cyangwa kutamenya neza ingaruka z’ibidukikije nkubwiza bwubutaka, imigezi y’amazi, umuvuduko w’amazi, nibindi byinzuzi, ikiyaga, ninyanja mugihe cyo kubaka byanze bikunze bizatera impanuka zumutekano mukubaka.
Inzira nyamukuru nu micungire yumutekano yibyuma byurupapuro rwubaka cofferdam:
I. Inzira yo kubaka
1. Gutegura ubwubatsi
Treatment Kuvura urubuga
Iyubakwa ryuzuye ryubwubatsi rigomba gukusanyirizwa hamwe kumurongo (uburebure bwateganijwe ni ≤30cm) kugirango harebwe niba ubushobozi bwo gutwara bwujuje ibisabwa mubikorwa byubukanishi.
Umusozi wumuyoboro wamazi ugomba kuba ≥1%, kandi hagomba gushyirwaho ikigega cyimyanda kugirango birinde kwangirika.
Preparation Gutegura ibikoresho
Guhitamo ikirundo cy'icyuma: Hitamo ubwoko bw'ikirundo ukurikije raporo ya geologiya (nk'ubwoko bwa Larsen IV kubutaka bworoshye na U ubwoko bwa kaburimbo).
Reba ubunyangamugayo bwo gufunga: Koresha amavuta cyangwa kashe mbere kugirango wirinde kumeneka.
2. Ibipimo n'imiterere
Koresha sitasiyo yose kugirango uhagarare neza, shiraho ibirundo byo kugenzura buri 10m, hanyuma urebe igishushanyo mbonera no gutandukana (ikosa ryemewe ≤5cm).
3. Kuyobora ikadiri yo gushiraho
Umwanya uri hagati yimirongo ibiri yumurongo wicyuma uyobora ni 1 ~ 2cm nini kuruta ubugari bwurupapuro rwicyuma kugirango harebwe niba gutandukana guhagaritse kutarenze 1%.
Imirongo ngenderwaho igomba gukosorwa no gusudira ibyuma cyangwa guhinduranya kugirango wirinde kwimuka mugihe cyo kunyeganyega.
4. Urupapuro rwicyuma
Sequence Ikirundo cyo gutwara ikirundo: Tangirira ku kirundo cy'inguni, funga icyuho kuruhande rurerure ugana hagati, cyangwa ukoreshe “ecran-style” kubaka amatsinda (ibirundo 10 ~ 20 kuri buri tsinda).
Control Kugenzura tekinike:
Gutandukana guhagaritse ikirundo cya mbere ni .5 0.5%, naho umubiri wikirundo ukurikiraho ukosorwa n "gushiraho ibinyabiziga".
Rate Igipimo cyo gutwara ikirundo: ≤1m / min mu butaka bworoshye, kandi indege y’amazi y’umuvuduko ukabije irasabwa gufasha kurohama mu butaka bukomeye.
Treatment Kuvura gufunga: Niba icyuho gisigaye kidashobora kwinjizwamo ibirundo bisanzwe, koresha ibirundo byihariye (nkibirundo bya wedge) cyangwa weld kugirango ufunge.
5. Gucukura umwobo no gufata amazi
Ubucukuzi bwateguwe (buri cyiciro ≤2m), inkunga nkubucukuzi, intera yimbere yimbere ≤3m (inkunga yambere ni ≤1m kuva hejuru yumwobo).
System Sisitemu yo kuvoma: Umwanya uri hagati y amariba yo gukusanya amazi ni 20 ~ 30m, naho pompe zirohama (umuvuduko wamazi ≥10m³ / h) zikoreshwa mugupompa guhoraho.
6. Gusubiza inyuma no gukuramo ikirundo
Gusubira inyuma bigomba gukomatanyirizwa hamwe mubice (dogere yoguhuza ≥ 90%) kugirango wirinde guhinduka kwa cofferdam kubera igitutu kimwe.
Gukurikirana ikirundo: gukuramo hagati kugeza impande zombi mugihe gito, hanyuma utere amazi cyangwa umucanga icyarimwe kugirango ugabanye ihungabana ryubutaka.
II. Gucunga umutekano
1. Kugenzura ibyago
Kurwanya guhirika: Gukurikirana-igihe nyacyo cyo guhindura cofferdam (guhagarika kubaka no gushimangira mugihe igipimo cyo hejuru kirenze 2%).
Irwanya kumeneka: Nyuma yo kurunda, umanike inshundura imbere kugirango utere grout cyangwa ushire geotextile idafite amazi.
Kurwanya kurohama: Shiraho izamu (uburebure bwa m 1,2m) hamwe nubuzima bwubuzima / imigozi kurubuga rukora.
2. Igisubizo kumikorere idasanzwe
Impinduka zamazi: Hagarika akazi amasaha 2 mbere yumuraba mwinshi hanyuma urebe kashe ya cofferdam.
Warning Kuburira imvura nyinshi: Gupfundikira umwobo fatizo mbere hanyuma utangire ibikoresho byo kumanura amazi (nka pompe zifite ingufu nyinshi).
3. Gucunga ibidukikije
Treatment Kuvura ibyondo: Gushiraho ikigega cyimyanya itatu hanyuma ukagisohora nyuma yujuje ubuziranenge.
Control Kugenzura urusaku: Gabanya ibikoresho by urusaku rwinshi mugihe cyo kubaka nijoro (nko gukoresha moteri ihagaze neza).
Ⅲ. Ibyingenzi byingenzi bya tekinike
IV. Ibibazo bisanzwe no kuvurwa
1. Gutandukana kw'ikirundo
Impamvu: ibintu bikomeye murwego rwubutaka cyangwa gahunda itari yo yo kurunda.
Umuti: Koresha "ibirundo byo gukosora" kugirango uhindure inshinge cyangwa kuzuza ikirundo cyaho.
2. Funga imyanda
Umuti: Uzuza imifuka y'ibumba hanze hanyuma utere polyurethane ifuro ifuro imbere kugirango ushireho ikimenyetso.
3. Kuzamura urufatiro
Kwirinda: Kwihutisha kubaka isahani yo hepfo no kugabanya igihe cyo kwerekana.
V. Incamake
Kubaka amabati ya cofferdams bigomba kwibanda kuri "imiterere ihamye (imiterere ihamye), ubucucike (gufunga ikirundo), no kwihuta (gufunga byihuse)", kandi bigahindura imikorere muburyo bujyanye nubumenyi bwa geologiya. Ahantu h'amazi maremare cyangwa ibice bigoye, hashobora gukurikizwa gahunda ya "inkunga ubanza hanyuma ucukure" cyangwa "ikomatanya cofferdam" (urupapuro rw'icyuma ikirundo + beto irwanya seepage). Kubaka kwayo birimo guhuza imbaraga nimbaraga. Uburinganire bwuzuye hagati yumuntu na kamere burashobora gutuma iterambere ryubaka neza kandi bikagabanya ibyangiritse niseswa ryumutungo kamere.
If you have any further questions or demands, please feel free to contact Ms. Wendy. wendy@jxhammer.com
whatsapp / wechat: + 86 183 5358 1176
Igihe cyo kohereza: Werurwe-10-2025