Ingcinezelo eziqinileyo kwindalo

uxinzelelo karhulumente isiqina - kodwa ikakhulu abakhi yokuqala yotshaba. Ngenxa yokuba kukho uxinzelelo eziqinileyo, akunakwenzeka ukwenza ezinye iiprojekthi kulo mgaqo. Okubangel 'umdla kukuba, wamandulo, ngokuchasene ulonwabele olu impahla, ukuvelisa izakhiwo yinzwakazi. Iiphiramidi nezinye izikhumbuzo ezininzi izakhiwo - zonke ezi ziphumo yomsebenzi onzima ekudaleni yobuciko yinzwakazi. Phawula ukuba loo xi kuthelekiswa eziqinileyo.

Bafumana ngaloo maxesha xi eziqinileyo ifomula inikeza:

P = F / S,

ie mandla ebambeleyo kumphezulu yintloko wengcinezelo.

Kufuneka kuqatshelwe ukuba eneneni, umkhosi yengcinezelo umzimba usoloko eyakhayo kwaye isemthethweni kumacala omabini. Apha usebenza umthetho wokuqala Newton - amandla amanyathelo ulingane nomkhosi yokunganyangeki. Esebenzayo ebomini - ingcinezelo ebangelwa ubunzima kwesakhiwo, kuya kuba njalo kweemaleko ezisezantsi olusaqalayo. Ngoko ke, abayili, kusoloko abakhi esilindele ukuba isiseko isakhiwo. Kakade ke, le ndlela yokubala kuquka ezinye izinto (mandla umoya -. Ukusuka eluphahleni, amanzi aphantsi komhlaba, ziintshukumo zenyikima njalo njalo).

Kutheni le nto kufuneka ukuba umntu ukuze lisasazwe ubunzima bakho phezu komhlaba enkulu? Kwaye ngoko ndicinga yenaliti, okanye imela. Zombini has a inxalenye elibukhali, kuba amandla engcono umthondo. Ngoku khumbula Ukuskiya kunye ulandelele-uhlobo iitrektara. Abaqubhi musa mandingaweli ekhephini, kunye iitrektara umnqamlezo elilungileyo imigxobhozo, njengoko bazenze zambi indawo contact enkulu - ukuya imbeddability engaphantsi. Oku kubonisa indlela esisiseko ebonisa eziqinileyo uxinzelelo - ngamandla efanayo, kodwa kwiindawo ezahlukeneyo, ingcinezelo ziya kwahluka. Kuyinto bomzimba ngokomlinganiselo isikwere. ie ubukhulu kummandla, i enkulu ingcinezelo. Vice versa.

Ke kaloku, emva nakubakhi. Kwakutheni ukuze xi - yintloko enkulu? Yonke le nto kwindawo enye. Ngapha koko, izinto ixesha elide, ngoko kuba nzima. Cinga enzima concrete Iizilebhu-ukudlulela. Kakade ke, kweli xesha lethu, kukho ezininzi i okunamandla, ayisindi. Kodwa akukho kulula. Nayiphi na iprojekthi yokwakha kuqikelelwa inzuzo. Ukuba ixabiso enjalo super-materials liphezulu, yaye iindleko zokwakha ziza kuba enkulu. Ngenxa yoko, umthengi akuthethi ngokutsala ezemali okanye projekthi iya kuba nemiphumo emihle kangangexesha elide. Kodwa sesitshilo ngasentla, ukuba bamandulo basebenzisa xi eziqinileyo emagemeni abo.

Ngaloo mihla, izinto zokwakha ezi kunokuba zimbalwa kunye nobungakanani. Ngapha koko, ishishini lemigodi ibingeyiyo, kwaye ilitye eqingqiweyo ngesandla. ikhonkrithi okanye nodaka kwakhona ubhale izinto coupling. Kwakufuneka ukuba izakusetyenziswa endaweni kuqhotyoshelwe eziqinileyo uxinzelelo. Inyaniso kukuba lo mkhulu uxinzelelo, kokukhona amandla ofunekayo izinto. Kodwa kwelinye icala, oku umkhosi omkhulu frictional. Yaziwa, kunokwenza umahluko omkhulu. Ngenxa yoko, sifumanisa ukuba bungaxhomekekanga yentsimbi, yonke into waphumla amandla womxhuzulane kunye nomkhosi frictional.

Ngoku cinga ngendlela okukhulu unalo uloliwe onezi - 300000 kPa !!! Noxinzelelo of ezizodwa qha tektala - 20 kPa. Kakhulu ingongoma umdla, oko kuya kubonakala, lo kumgxobhozo tektala enzima, idala kakhulu uxinzelelo phantsi emhlabeni. Oku kukuvumela ukuba umhlaba isithintelo kunye Marshland ngenxa umkhondo ngokubanzi. Xa sithetha ngalo zochuku ikhankanywe ngasentla, kunokuba lweendidi ezahlukeneyo kwaye anikwe:

F = μ × N, [H]

apho F - amandla frictional [N]

μ - ukukhuhlana lomlingani

N - yokusabela [H].

ingabonwa amandla koxinzelelo njengoko, kengoko iingongoma akhabayo kunye navumelanayo. Nature njengoko liye lakwazi ukuzivumelanisa esi senzeko. Abantu ekwakhiweni emangalisayo elula safudukela kwasungulwa izinto ezintsha nobuchwepheshe. Loo esenzeka indalo kwaye yena zobalelwa ekuthini.