Ihe gbasaranko ntupuchere na anyị ghọtara nke ọma ugbu a, yabụ gwa anyị ihe bụ ọrụ nko ntupu n'ọhịa nke ngwa.Taa ịgwa anyị gbasara nko net na quicksand bụ ka esi eme ya.Nko nke nwere mkpuchi rọba iji gbochie ihe na-eruba ájá: mkpọpu ala, na-eche na mmiri na-agbapụta n'elu ya kpọmkwem, ala ga-adị elu, nwere ike ịmepụta ihe na-asọpụta ájá.Mgbe ahụ na ala nke ụwa gushing mmiri, enweghị ike wepụ deposition ma ọ bụ ụzọ ndị ọzọ, ogologo ahiri 9 ọma n'ókè ọdịda, ọdịda nke ụdị nile nke wuru ụzọ belata groundwater table ọma n'ókè ọdịda, ọ bụghị nanị na-agbakwụnye mgbali gradient.
I nwekwara ike ịgbanwe àgwà nke mmiri mmiri ọrụ omume, ọ bụ ezie na e nwere ọtụtụ sedimentary usoro, engineering Njirimara kwesịrị ka a tụlee, na-egwupụta omimi omimi, ala àgwà na aku na uba na ihe ndị ọzọ na-atụle, na-emighị emi ntọala olulu, ihe na-erughị 4 pasent na-emighị emi ìhè ọma n'ókè nke. akụ na ụba, olulu ntọala miri emi kwesịrị ịtụle ebe dị mma radieshon, nnukwu ọdịda olulu miri emi kwesịrị ịtụle, na ebe olulu mmiri miri emi.
Ntụnyere nke ogbugba mmiri n'ubi ọma na ìhè na ụdị nile nke na-ekwesịghị ekwesị atụmatụ, na-ekweta na seepage ákwà mgbochi nke seepage ákwà mgbochi nke bara uru ọdịda atụmatụ, na-eji egbochi ma ọ bụ na-egbochi ya ala mmiri seepage n'ime olulu, ojiji nke nko nkume ákwà mgbochi;Mgbe ụfọdụ na-mkpa na ákwà mgbochi ma ọ bụ n'èzí nke mmiri ala Ịgwakọta ikpo, a okirikiri mmiri ala Ịgwakọta ikpo, nko net bụ a na-ejikarị waterproof Ọdịdị, mmiri ala idowe mgbidi nwekwara ike na-ebu n'ihu na ya pụta, na njide na akara, ike gwụrụ. ikpo, ikpo-ejigide, mmiri ala agwakọta ikpo akara.
Ụkpụrụ ọrụ nkenko ntupuyiri usoro nchebe mkpọda nke arịlịka ịgba na mgbidi ntu ala.Nko ntupu usoro e ji mara: ya mgbanwe e ji mara nwere ike ime ka usoro ga-abụ akụkụ nke edo nyefe ibu gburugburu na-enye zuru play na-echebe nke dum usoro, ya bụ, akụkụ nke ibu, niile ọrụ, nke mere na nko. Sistemu ntupu nwere ike ịnakwere ibu buru ibu ma belata ike arịlịka chọrọ nke otu bolt.
Oge nzipu: 31-12-21