Ndezvipi manholes vari?

Manholes akaita kuti kugadza manhole. Chivako ichi anopa kuwana pevhu utilities: mapaipi, mvura dutu, waya kana Mapaipi. Its chikuru Mabasa: kudzivirirwa uye abudise matsime muchiwirirana uye nechokwadi pangozi netsoka uye vatyairi.

Manhole pabutiro kushumira somuganhu pamusoro mvura uye kudzivirira kunze komutemo kupinda mukati tsime. Kazhinji, manholes anorema makirogiramu anopfuura 50, kuva zvakaoma kufamba. Kazhinji, asi nguwani vane dzeraundi makavharidzira chimiro, asi unogona kuwana sikweya, rectangular uye denderedzwa.

Round muvharo rokufukidza manholes, yakakunakira pakuti hazvina tenderera, uye saka regai kuwira tsime. Uyezve, panguva yayo gadzira zvinotora zvinhu zvishoma uye nyore kugadzirwa rwokugadzira. On pabutiro pane buri. It anodzora gasi musanganiswa mukati tsime (kunotema zvinobvumidzwa nemiganhu). With nyore kuvhura manholes, uchishandisa chiredzo ine muromo mhangura.

On pemvura muvharo inowanzopiwa akaita mukurumbira mifananidzo, kudzivisa kuunganidza uye nechando chemvura. Fungidzira kuti rakasiyana notation, taura pamusoro chii kukurukura pane kuti ose zvifananidzo. Optionally bhuku pabutiro uri chimwe muenzaniso, kana chishongo chichange vanoratidzwa jasi mhuri. Kuona zvokungwarira concave madhoo regai kubereka.

Shandisa zvinoverengeka zvokuvakisa cover. Madhoo nguruve-nesimbi rakajairika uye anowanzodanwa kushandiswa pamusoro muindasitiri akamboona. Asi iwe unogona kuwana mapurasitiki, mapurasitiki, rabha uye kongiri manholes. Asi simbi ndiyo mashoko mukuru kuti zviitwe. Rashai madhoo simbi inozivikanwa akavimbika, mukurumari uye kuramba kwokunze kwezvakatipoteredza. Nguva ichangopfuura, vava nevakawanda chipfuro yokuba (kunobatsira kutora chinyorwa simbi). Mari mumwe pechifukidziro kwakadaro kunogona kuva kubva 50 kusvika 200 madhora, uye kusiya madhoo ngozi rakavhurika, saka iri akatarisa kumwe.

It rava kuoneka zvinoitwa kuwedzera kudiwa epurasitiki ngowani. Vane yakasimba, eco ushamwari uye vane yakaderera mutengo. Shandisa hwendarira ari munzvimbo yakasvibirira dzezvimwe, pamusoro twetsoka uye pavements. chikuru chinetso wavo ndiye simba yakaderera, saka havana kuisa mumigwagwa.

No chivharo pamusoro mapaipi manhole kungaita kuti migumisiro yakaipa. Interesting vachiri kuyaruka vakapararira uye Vanopfuura havagoni kuona rakashama tsotsonya uye kuwa. Pane mukana wokuti munhu anogona kuwira mugomba, asati abate mutsigiri, somugumisiro kukuvara (nokutyora, contusion). Naizvozvo, kana mumwe munhu anowana rakavhurika tsotsonya, edza kurambidza migumisiro yakadaro. In Huro ake anogona vayambukire bazi guru, zvinenge. It Uchaona uye yokunzvenga. manholes All pasina cover zvinofanira akakombwa uye kuvharwa nokukurumidza sezvinobvira.