Izinqwaba zamashidi ensimbiziyizingxenye ezinde zesakhiwo ezinokuxhumana okuxhumene.Zivame ukusetshenziswa njengezindonga ezibambayo ezakhiweni ezingasemanzini, kuma-cofferdams, nakwezinye izinhlelo zokusebenza ezidinga umgoqo ngokumelene nomhlabathi noma amanzi.Lezi zinqwaba ngokuvamile zenziwe ngensimbi ngenxa yamandla ayo kanye nokuqina.Umklamo ohlangene uvumela ukuthi udonga oluqhubekayo ludalwe, oluhlinzeka ngokusekela okuphumelelayo kokumba kanye nezinye izidingo zesakhiwo.
Izinqwaba zamashidi ensimbi zivame ukufakwa kusetshenziswa izando ezidlidlizayo, ezishayela izigaba emhlabathini ukuze zakhe umgoqo oqinile.Atholakala ngobujamo nobukhulu obuhlukahlukene ukuze avumelane nezidingo ezahlukene zephrojekthi.Ukuklama nokufakwa kwezinqwaba zeshidi lensimbi kudinga ubuchwepheshe ukuze kuqinisekiswe ukuzinza nokusebenza kwesakhiwo.
Sekukonke, izinqwaba zamashidi ensimbi ziyisixazululo esiguquguqukayo nesisebenzayo samaphrojekthi ahlukahlukene wokwakha nobunjiniyela bomphakathi abandakanya ukugcinwa kwezindonga, ama-cofferdam, nezinye izinhlelo zokusebenza ezifanayo.