Pakati pa ntchito iliyonse yofunika kwambiri yokhudza magetsi opangidwa ndi madzi pali damu—kapangidwe kauinjiniya kamene kamapangidwa kuti kalepheretse kuyenda kwa mtsinje mwachilengedwe. Ntchito yayikulu ya damu pamagetsi opangidwa ndi madzi ndi iwiri: kupanga malo osungira madzi ndi kupanga "hydraulic head" (mtunda womwe madzi amagwera). Kupanga zopinga izi ndi chimodzi mwa ntchito zovuta kwambiri komanso zogwiritsa ntchito ndalama zambiri mu uinjiniya wa zomangamanga, zomwe zimafuna njira yolondola yopezera chitetezo, nthaka, ndi kasamalidwe ka chilengedwe.
1. Kusankha Malo ndi Kufufuza za Geotechnical
Ntchito yomanga imayamba kale kwambiri simenti yoyamba isanathiridwe. Kafukufuku wozama wa geology amachitika kuti atsimikizire kuti thanthwe lolimba likhoza kupirira kulemera kwakukulu kwa damu ndi kuthamanga kwa madzi.
Kugwedezeka kwa Dziko: Mainjiniya ayenera kuwunika mbiri ya zochitika za tectonic m'derali kuti apange nyumba yomwe ingathe kupirira zivomezi zomwe zingachitike.
Kuthirira madzi: Maziko ayenera kuyesedwa ngati “akutuluka madzi.” Ngati mwala womwe uli pansi pake uli ndi mabowo ambiri, kuyika simenti m'ming'alu ya miyala yokwera mtengo kumafunika kuti madzi asalowe pansi pa damu.
2. Kupatuka kwa Mtsinje: Kumanga mu Dry
Kuti pakhale damu, mtsinje uyenera kukhala wouma. Izi zimachitika kudzera mu njira yotchedwa River Diversion.
Cofferdams: Madamu akanthawi, otchedwa cofferdams, amamangidwa pamwamba ndi pansi pa malo omangira kuti atseke madzi.
Ma ngalande Opatuka: Mtsinjewo umakakamizika kudutsa m'ngalande zazikulu zomwe zimabowoledwa m'mphepete mwa mapiri omwe ali m'mbali mwa mtsinjewo, kapena kudzera mu ngalande yakanthawi, zomwe zimathandiza kuti ntchito ipitirire pa mtsinje womwe ukuonekera.
3. Mitundu ya Kapangidwe ka Madamu a Madzi
Kusankha kapangidwe ka damu kumadalira mawonekedwe a chigwacho ndi zipangizo zomwe zilipo:
Ma Damu Okokera: Awa ndi nyumba zazikulu zomangidwa ndi simenti kapena miyala. Amadalira kulemera kwawo kokha kuti apewe kupanikizika kwa madzi.
Ma Damu a Arch: Awa ndi nyumba zokhota zomwe zimasamutsa kuthamanga kwa madzi kupita ku makoma a canyon. Ndi abwino kwambiri m'mitsinje yopapatiza komanso yamiyala ndipo safuna konkire wochepa kwambiri kuposa ma Damu a mphamvu yokoka.
Madamu a m'mphepete mwa nyanja (Odzaza ndi nthaka kapena odzaza miyala): Opangidwa ndi nthaka yopapatiza kapena miyala yokhala ndi pakati posalowa madzi (nthawi zambiri dongo kapena konkire), nthawi zambiri amagwiritsidwa ntchito m'zigwa zazikulu komwe maziko ake sangagwirizane ndi nyumba yolemera ya konkire.
4. Kapangidwe ka Thupi Lalikulu ndi Kupanga Zinthu Zatsopano
Kumanga madamu amakono nthawi zambiri kumagwiritsa ntchito Roller-Compacted Concrete (RCC). RCC imayikidwa pogwiritsa ntchito zida zosuntha nthaka ndipo imakutidwa ndi ma vibratory rollers, zomwe zimakhala zachangu komanso zotsika mtengo kuposa konkriti yachikhalidwe "yotsika".
Kuwongolera Kutentha: M'madamu akuluakulu a konkriti, momwe mankhwala amagwirira ntchito kuchokera ku konkriti yothira mafuta imapanga kutentha kwakukulu. Ngati sichitha kuyendetsedwa bwino, konkritiyo imasweka. Mainjiniya amaika mapaipi ozizira mkati kapena amagwiritsa ntchito madzi ozizira panthawi yosakaniza kuti azitha kutentha.
Njira Yothira Madzi: Njira yothira madzi ndi yofunika kwambiri pa chitetezo, ndipo njira yothira madzi ndi njira yothira madzi ambiri. Iyenera kupangidwa kuti igwire ntchito yothana ndi kusefukira kwa madzi kwakukulu, kuonetsetsa kuti madzi samayenda pamwamba pa gawo la damu losathira madzi ambiri, zomwe zingayambitse kuwonongeka kwa kapangidwe ka madzi.
5. Kuganizira za Chilengedwe ndi Chikhalidwe
Kumanga madamu amakono sikuweruzidwanso pa mphamvu yamagetsi yokha. Kukhazikika kwa chilengedwe tsopano ndi chinthu chofunikira kwambiri:
Njira Yodutsa Nsomba: Madamu ambiri tsopano ali ndi "makwerero a nsomba" kapena ma elevator kuti zamoyo zosamuka zidutse chotchingacho.
Kusamalira Zinyalala: Madamu amasunga matope, omwe pamapeto pake amatha kudzaza dziwe. Mapangidwe amakono akuphatikizapo njira zotulutsira zinyalala pansi pa dziwe.
Kusamutsa anthu: Mapulojekiti akuluakulu amakhudza kusamutsa anthu m'madera osiyanasiyana. Kuwunika kwathunthu kwa zotsatira za chikhalidwe cha anthu tsopano ndi njira yodziwika bwino yowonetsetsa kuti moyo wa anthu am'deralo ukusungidwa bwino.
Kumanga damu la malo opangira magetsi ndi luso lalikulu la anthu. Kumafuna mgwirizano wabwino kwambiri pakati pa zomangamanga za boma, zamadzimadzi, komanso zachilengedwe. Pamene dziko lapansi likufuna magwero amphamvu okhazikika komanso obwezerezedwanso kuti lithane ndi kusintha kwa nyengo, kumanga madamu kudakali kofunika kwambiri pa njira yamphamvu yapadziko lonse lapansi—kulinganiza kufunikira kwa mphamvu yoyera ndi kufunika kwa chitetezo cha chilengedwe ndi kapangidwe kake.
Nthawi yotumizira: Meyi-07-2026
