Mabuɗin mahimmanci don aiwatar da gwajin tushe tari

Lokacin farawa na gwajin tushe ya kamata ya dace da waɗannan sharuɗɗa:

(1) Ƙarfin ƙanƙara na tarin gwajin da aka gwada kada ya zama ƙasa da 70% na ƙarfin ƙira kuma kada ya kasance ƙasa da 15MPa, ta amfani da hanyar iri da hanyar watsa sauti don gwaji;

(2) Yin amfani da hanyar hakowa mai mahimmanci don gwaji, shekarun siminti na tarin da aka gwada ya kamata ya kai kwanaki 28, ko ƙarfin ƙarfin gwajin da aka warke a ƙarƙashin yanayi iri ɗaya ya dace da buƙatun ƙarfin ƙira;

(3) Sauran lokacin kafin gwajin ƙarfin ɗaukar nauyi na gabaɗaya: Tushen yashi bazai ƙasa da kwanaki 7 ba, tushe na silt ba zai ƙasa da kwanaki 10 ba, ƙasa mara kyau ba zata kasance ƙasa da kwanaki 15 ba, kuma cikakkiyar ƙasa mai haɗin gwiwa ba za ta kasance ba. kasa da kwanaki 25.

Tarin riƙe laka ya kamata ya ƙara lokacin hutu.

Ma'auni na zaɓi na tarin da aka bincika don gwajin karɓa:

(1) Tari tare da ingancin ginin da ake tambaya;

(2) Tari tare da yanayin tushe mara kyau na gida;

(3) Zaɓi wasu tari na Class III don ɗaukar ƙarfin yarda;

(4) Ƙungiyar ƙira ta la'akari da mahimman tari;

(5) Tari tare da fasahohin gini daban-daban;

(6) Yana da kyau a zaɓi iri ɗaya kuma ba da gangan ba bisa ka'ida.

Lokacin gudanar da gwajin karɓuwa, yana da kyau a fara gudanar da gwajin mutunci na jikin tari, sannan ɗaukar gwajin ƙarfin aiki.

Ya kamata a gudanar da gwajin amincin jikin tari bayan an tono ramin tushe.

An karkasa mutuncin jikin tari zuwa nau'i hudu: tari na Class I, tari na II, takin aji III, da tari na Class IV.

Nau'in I tari jiki ba shi da kyau;

Matakan Class II suna da ƙananan lahani a cikin jikin tari, wanda ba zai shafi ƙarfin ɗaukar al'ada na tsarin tari ba;

Akwai nakasu a fili a cikin tarin tarin tarin Class III, waɗanda ke da tasiri akan ƙarfin tsarin tsarin tari;

Akwai munanan lahani a cikin tarin tarin tarin Class IV.

Ya kamata a ɗauki ƙimar ƙimar ƙarfin ɗaukar matsi a tsaye na tari ɗaya a matsayin kashi 50% na iyakar ƙarfin ɗaukar nauyi na tari ɗaya.

Ya kamata a ɗauki ƙimar ƙimar ƙarfin cirewa a tsaye na tuli ɗaya a matsayin kashi 50% na ƙarfin ɗaukar fitarwa na tsaye na tari ɗaya.

Ƙayyadaddun ƙimar ƙimar madaidaicin juzu'i na tari ɗaya: na farko, lokacin da ba a ba da izinin jikin tari ya fashe ba ko adadin ƙarfafawa na jikin tari na simintin wuri bai wuce 0.65% ba, sau 0.75 a kwance. za a ɗauki kaya mai mahimmanci;

Abu na biyu, don pratoring karfafa karfafawa, tarajin karfe, da kuma suban cunkoson da ba kasa da kwance a cikin tayin da aka tsara a matsayin 0.75 sau (a kwance Ƙimar ƙaura: 6mm don gine-gine masu kula da ƙaura a kwance, 10mm don gine-ginen da ba su da hankali ga ƙaura a kwance, saduwa da buƙatun juriya na jikin tari).

Lokacin amfani da hanyar hakowa mai mahimmanci, adadin da buƙatun wuri don kowane tari da aka bincika sune kamar haka: tari tare da diamita ƙasa da 1.2m na iya samun ramuka 1-2;

Tari mai diamita na 1.2-1.6m ya kamata ya sami ramuka 2;

Piles tare da diamita fiye da 1.6m ya kamata su sami ramuka 3;

Matsayin hakowa ya kamata a daidaita daidai kuma a daidaita shi a cikin kewayon (0.15 ~ 0.25) D daga tsakiyar tari.