Yi aikin na dake da kulaƙa ɗaukakar zanga-zangon gida steel daiyar hanyoyi shirya amfani da cikakken highway engineering.

Tumbin kankara, wanda ke maimakon ginya a ginya gudun kofa da kofa, akwai tsari mai tsura wanda ke kara inganci a cikin tsofaffin tattara da kuma tattara mai kyau. Zan tattara zai iya gudanar da tsabo a cikin jigo, yin kama da tsawon gudun tattara sannan zai kara inganci a cikin amfani da abubuwan tattara na baya, don haka zai kara maimakon alamun. Don karu, tumbobin zai iya amfani da gudun ƙima da kuma ba da duk dukkanin aikin, yin kama da rishadinkan da ba da shanƙawa da kuma kawar da tumbin kwayoyin na kankara don kawar da alhakin—na kuma kofa mai saniya.

Tumbin kankara na karkashin akwai cikin fuskaka biyu: marasa tsani, mai tsani, da kuma mai tsani. Karkashin kowa zai amfani da aikin ingancin guda.

Aboki na iya nufin cewa za a iya amfani da steel bellows wanda aka sa alhassiku zuwa ƙarshi ƙasa ta 100 shekaru, saboda galvanization da kuma siffar asphalt corrosion protection. Wannan tsari ya amfani da Q235-A hot-rolled steel plate, wanda ke kirkira steel panels zuwa ɓangaren da ke ɗaya, daban sa kuma kirkirar da karkashin da kuma tsinkaya. High-strength bolts (M 208.8 grade) da kuma curved washers (HRC35 grade) ke nufin kirkirar, a kuma hot-dip galvanized surface ta nufin tattara. Asali na kowane culvert ya da ɓangar gari na 50-100 cm wanda ke 95% compaction, kuma aka amfani da M7.5 slurry masonry don tattara. Zane na ruwa a cikin culvert ya da ƙarshi 5%. A cikin ɓangaren masu musawa, culverts kuma ya da ɓangaren elliptical da flanged, kuma a kuma iya canza karkashin don inlet da outlet design.

Wani ma'ana wanda ya faruwa ne:
- Rogan Gudun Project
- Hanyar Girgirin da Kusurwa
- Gudun Tsaracen Mutum da Kurum
- Gidan Girgirin a Cikin Girka
- Gwamnatin Barin da Karamin Ƙarƙashin
- Ƙarƙashin Sauran Don Karɓin Masu Karfe
- Tsarin Gidan dan Adam da Tsarin Rikici
- Tacewa a cikin Masana Kasa
- Yanayin Kasa Mai Ƙarƙashin Daƙƙa
- Gwamnatin Barin da Karamin Ƙarƙashin Da Karamin
- Gidan Kura na Kura
- Arewa Ɗaya na Ƙarƙashin a cikin Loess Mai Tura da Karamin Ƙarƙashin Da Karamin
- Amsawa na Small Bridges
- Ƙarƙashin Daƙƙiya a cikin Loess Mai Tura da Ƙarƙashin Da Karamin