Ntchito yomanga mulu wazitsulo ndi ntchito yomwe imachitika m'madzi kapena pafupi ndi madzi, yomwe cholinga chake ndi kupanga malo owuma komanso otetezeka kuti amange. Kumanga kosakhazikika kapena kulephera kuzindikira bwino momwe chilengedwe chimakhudzira chilengedwe monga mtundu wa nthaka, kuyenda kwa madzi, kuthamanga kwa kuya kwa madzi, ndi zina zotero.
Njira zazikulu komanso zowongolera chitetezo pakumanga kwachitsulo mulu wa cofferdam:
I. Ntchito yomanga
1. Kukonzekera kwa zomangamanga
○ Chithandizo chapatsamba
Pulatifomu yomangira yodzaza iyenera kuphatikizidwa ndi wosanjikiza (wosanjikiza wokhazikika ndi ≤30cm) kuwonetsetsa kuti mphamvu yonyamula imakwaniritsa zofunikira zamakina.
Malo otsetsereka a ngalande amayenera kukhala ≥1%, ndipo tanki yothira matope iyenera kukhazikitsidwa kuti zisatsekeke.
○ Kukonzekera zinthu
Kusankha mulu wazitsulo: Sankhani mtundu wa muluwo molingana ndi lipoti la geological (monga mtundu wa Larsen IV wa nthaka yofewa ndi mtundu wa U wa miyala yosanjikiza).
Yang'anani kukhulupirika kwa loko: Ikani batala kapena sealant pasadakhale kuti musatayike.
2. Muyeso ndi masanjidwe
Gwiritsani ntchito siteshoni yonse kuti muyike bwino, ikani milu yowongolera pa 10m iliyonse, ndipo yang'anani ma axis ndi makwerero okwera (zolakwa zovomerezeka ≤5cm).
3. Guide chimango unsembe
Kutalikirana pakati pa zitsulo zowongolera zitsulo zamizere iwiri ndi 1 ~ 2cm yayikulu kuposa m'lifupi mwa milu yazitsulo zachitsulo kuti zitsimikizire kuti kupatuka kwa verticality sikuchepera 1%.
Miyendo yolondolerayo iyenera kukhazikitsidwa ndi kuwotcherera chitsulo kapena bolting kuti musasunthike panthawi yakugwedezeka.
4. Kuyika mulu wazitsulo zachitsulo
○ Mayendedwe a milu: Yambirani pa mulu wa ngodya, tsekani kusiyana kumbali yayitali mpaka pakati, kapena gwiritsani ntchito kupanga gulu la "mawonekedwe a skrini" (milu 10~20 pa gulu).
○ Kuwongolera mwaukadaulo:
Kupotoka kwa verticality kwa mulu woyamba ndi ≤0.5%, ndipo thupi la mulu wotsatira limakonzedwa ndi "kuyendetsa galimoto".
○ Kuthamanga kwa mulu: ≤1m/mphindi mu nthaka yofewa, ndipo jeti yamadzi yothamanga kwambiri imafunika kuthandiza kumira mudothi lolimba.
○ Chithandizo chotseka: Ngati kusiyana kotsalako sikungayikidwe ndi milu yokhazikika, gwiritsani ntchito milu yooneka ngati mwapadera (monga milu ya mphero) kapena weld kuti mutseke.
5. Kukumba dzenje la maziko ndi ngalande
○ Kufukula kosanjikiza (chisanjiro chilichonse ≤2m), kuthandizira ngati kukumba, mtunda wothandizira mkati ≤3m (chothandizira choyamba ndi ≤1m kuchokera pamwamba pa dzenje).
○ Dongosolo la ngalande: Mpata pakati pa zitsime zotolera madzi ndi 20~30m, ndipo mapampu ozama (kuthamanga ≥10m³/h) amagwiritsidwa ntchito popopa mosalekeza.
6. Backfill ndi mulu m'zigawo
Kubwezeretsanso kumafunika kuphatikizika m'magawo (digrii yophatikizika ≥ 90%) kuti mupewe kusinthika kwa cofferdam chifukwa cha kukakamizidwa kosagwirizana.
Mayendedwe a milu ya milu: chotsani pakati kupita mbali zonse ziwiri modutsa, ndipo bayani madzi kapena mchenga nthawi imodzi kuti muchepetse kusokonezeka kwa nthaka.
II. Kasamalidwe ka Chitetezo
1. Kuwongolera Ngozi
○ Kuletsa kugubuduza: Kuyang'anira nthawi yeniyeni ya kusintha kwa cofferdam (kuyimitsani kumanga ndi kulimbikitsa pamene chiwongolero chili chachikulu kuposa 2%).
○ Anti-Leakge: Mukamuchulukira, sungani mauna mkati kuti mupondereze kapena muyike geotextile yosalowa madzi.
○ Zoletsa kumizidwa: Konzani zotchingira (kutalika ≥ 1.2m) ndi mabuoys/zingwe pa nsanja yogwirira ntchito.
2. Kuyankha kuzinthu zapadera zogwirira ntchito
○ Chikoka cha mafunde: Imitsani ntchito maola 2 mafunde asanafike ndikuwona kusindikizidwa kwa cofferdam.
○ Chenjezo la mvula yamphamvu: Phimbani dzenje pasadakhale ndikuyambitsa zosungirako madzi (monga mapampu amphamvu kwambiri).
3. Kusamalira chilengedwe
○ Kuchiza kwa dothi: Konzani thanki yothira matope ya milingo itatu ndikuitaya mukakwaniritsa zofunikira.
○ Kuwongolera phokoso: Chepetsani zida zaphokoso kwambiri panthawi yomanga usiku (monga kugwiritsa ntchito madalaivala osasunthika m'malo mwake).
Ⅲ. Zofunikira zaukadaulo zaukadaulo
IV. Mavuto wamba ndi chithandizo
1. Kupatuka kwa mulu
Choyambitsa: Zinthu zolimba m'nthaka kapena mulu wolakwika.
Chithandizo: Gwiritsani ntchito "milu yowongolera" kuti musinthe jekeseni kapena kudzaza milu yapafupi.
2. Tsekani kutayikira
Chithandizo: Dzazani matumba adothi kunja ndi kubaya thovu la polyurethane mkati kuti mutseke.
3. Kukweza dzenje la maziko
Kupewa: Limbikitsani kupanga mbale yapansi ndikuchepetsa nthawi yowonekera.
V. Mwachidule
Kumanga zitsulo mapepala mulu cofferdams ayenera kuganizira "chokhazikika (chokhazikika dongosolo), wandiweyani (kusindikiza pakati pa milu), ndi kudya (kutseka mofulumira)", ndi dynamically kusintha ndondomeko osakaniza zinthu geological. Kwa madera akuya amadzi kapena malo ovuta, "thandizo loyamba ndiyeno kukumba" kapena "cofferdam lophatikizana" (mulu wazitsulo zachitsulo + khoma la konkire lotsutsana ndi seepage) lingatengedwe. Mapangidwe ake ali ndi kuphatikiza kwa mphamvu ndi mphamvu. Kulinganiza kwangwiro pakati pa munthu ndi chilengedwe kungatsimikizire kupita patsogolo kwabwino kwa zomangamanga ndikuchepetsa kuwonongeka ndi kuwononga zachilengedwe.
If you have any further questions or demands, please feel free to contact Ms. Wendy. wendy@jxhammer.com
whatsapp/wechat: + 86 183 5358 1176
Nthawi yotumiza: Mar-10-2025