Pile Foundation Testing

Pile foundation kuaj

Raws li "Technical Specification for Testing of Building Pile Foundations" (JGJ106-}2014), cov txheej txheem tseem ceeb rau kev kuaj lub hauv paus muaj xws li cov khoom siv hluav taws xob zoo li qub, cov txheej txheem drilling, qis- txoj kev lim dej, txoj hauv kev siab, thiab txoj kev sib kis acoustic, thiab lwm yam.

Kev ntsuam xyuas cov ntsiab lus

 

(1) Vertical or lateral bearing capacity testing of various piers, piers, and pile walls, including single-pile thiab group-pile bearing capacity test;
(2) Cov kabmob muaj peev xwm thiab deformation yam ntxwv ntawm cov kabmob stratum ntawm lub pier hauv qab;
(3) Kev ntsuam xyuas kev ncaj ncees ntawm ntau pawg, piers, thiab pawg phab ntsa;
(4) Kev ntsuam xyuas los txiav txim siab qhov sib xyaw ua ke ntawm pawg thiab av lossis qhov sib koom ua ke ntawm pawg thiab av hauv cov hauv paus sib xyaw, thiab kev ntxhov siab - lim ntawm pawg thiab av;
(5) Kev txheeb xyuas qhov cuam tshuam ib puag ncig thaum tsim kho (xws li kev vibration, suab nrov, av deformation);
(6) Lwm yam kev tshawb pom nyob rau hauv cov xwm txheej tshwj xeeb lossis thaum muaj xwm txheej ceev.

Qhov no yog tam sim no feem ntau ncaj qha thiab txhim khu kev qha xeem txoj kev los kuaj xyuas cov ntsug compressive bearing muaj peev xwm ntawm pawg hauv paus. Txawm li cas los xij, hauv kev xyaum ua haujlwm engineering, nws tau pom tias cov teeb meem ntawm pawg siv qee zaum raug saib xyuas los ntawm cov neeg ua haujlwm kuaj, thiab feem ntau muaj teeb meem xws li kev nkag mus tsis txaus ntawm pawg siv thiab hloov chaw thaum lub sijhawm xeem.

Kev ntsuam xyuas cov khoom zoo li qub tuaj yeem muab faib ua: pawg thauj khoom thiab cov txheej txheem thauj tog rau nkoj.

Txoj kev no muaj cov yam ntxwv ntawm kev tshawb fawb, intuitive, thiab siv tau. Nws yog dav siv nyob rau hauv kev tshawb pom ntawm pob zeb cam khwb cia-hauv- qhov chaw pawg. Kev ua tiav thiab ua tiav cov tub ntxhais drilling tuaj yeem tau txais qhov ntev ntawm pawg, pob zeb ua lub zog ntawm pawg pawg, tuab ntawm cov av hauv qab ntawm pawg, thiab kev ncaj ncees ntawm pawg pawg, thiab txiav txim siab lossis txheeb xyuas cov pob zeb thiab av ntawm cov kabmob stratum ntawm pawg kawg. Kev cuam tshuam ntawm cov thev naus laus zis thev naus laus zis ntawm kev tshawb pom yog qhov tseem ceeb. Hauv ib qhov project, XY-1 hom engineering laum rig tau siv, nrog rau ib qho nyuaj alloy ib leeg -tube drilling cuab yeej, qis- siab qeeb- ceev me me twj tso kua mis kom muaj nuj nqis thiab qhuav drilling ua ke drilling txoj kev. Qhov tshwm sim yog tias cov tub ntxhais rho tawm tus nqi tsawg dua 70%, qhov kev ncaj ncees ntawm cov qauv tseem ceeb yog qhov tsis zoo, thiab feem ntau ntawm lawv yog nyob rau hauv daim ntawv ntawm cov khoom tawg. Tom qab ntawd, SCZ-1 hom hydraulic laum rig tau siv, nrog lub pob zeb diamond ib zaug ua ob-tube drilling cuab yeej, thiab cov tub ntxhais rho tawm tus nqi mus txog 99%. Cov qauv tseem ceeb yog nyob rau hauv ib qho ua tiav cylindrical zoo li. Yog li ntawd, "Drilling Machine Applicable Technical Specification" tau ua raws cov kev cai ntawm lub tshuab drilling thiab laum me ntsis kom tsis txhob muaj kev txiav txim siab hauv kev sim cov tub ntxhais.

Hauv Suav teb, feem ntau cov tsev kuaj mob siv txoj kev xav nthwv dej (lub sijhawm hloov pauv sijhawm- tus qauv tshuaj ntsuam xyuas) txhawm rau txheeb xyuas kev ncaj ncees ntawm pawg pawg. Qhov laj thawj tseem ceeb yog tias nws cov cuab yeej yog qhov hnyav, thiab ntawm - qhov chaw kuaj tau nrawm. Nyob rau tib lub sijhawm, cov txheej txheem excitation, zaus domain tsom txoj kev, thiab lwm yam yog kev sim thiab kev tsom xam pab txhais tau tias. Tau kawg, thaum siv cov qauv qis - lim rau kev kuaj pom, tsis hais seb hom kev puas tsuaj, nws qhov kev ua tau zoo tag nrho yog qhov impedance ntawm pawg txo qis, thiab nws nyuaj rau kev paub qhov txawv ntawm qhov tsis xws luag. Qhov no yog nws qhov kev txwv loj tshaj plaws.

Nws lub luag haujlwm tseem ceeb yog los txiav txim siab seb qhov ntsug compressive bearing muaj peev xwm ntawm pawg ua tau raws li cov qauv tsim. Hauv kev txiav txim siab cov kab rov tav sib xyaw ua ke, cov pob qij txha prefabricated thiab lwm yam tsis xws luag ntawm lub cev pawg, txoj kev siab siab tuaj yeem, los ntawm kev txheeb xyuas seb cov "tsis xws luag" cuam tshuam rau txoj kab ntsug compressive bearing muaj peev xwm, tsim nyog txiav txim siab txog qib ntawm qhov tsis xws luag, thiab tuaj yeem siv los ua ib qho kev txheeb xyuas ntxiv rau txoj kev qis qis. Hauv qee qhov chaw, kev siv cov txheej txheem siab kom nce qhov kev tshuaj ntsuam xyuas ntawm cov kabmob muaj peev xwm thiab kev ncaj ncees tau dhau los ua ib qho kev coj ua.

Piv nrog rau lwm txoj kev tshawb nrhiav kev ncaj ncees, txoj kev sib kis ntawm acoustic tuaj yeem ua kom paub meej thiab paub meej, thiab qhov pib tsis muaj lwm yam kev txwv. Txawm li cas los xij, vim muaj qhov sib txawv, kev sib kis, thiab kev xav, nws yuav cuam tshuam rau kev tshawb pom. Nyob rau hauv xyoo tas los no, ntau-channel ultrasonic ntsuas ntsuas tau tshwm sim, uas tau ua kom pom kev ua tau zoo heev. Txoj kev tshawb nrhiav no yog kom tau txais cov txheej txheem (seem) ntawm cov ntaub ntawv acoustic, txheeb xyuas cov ntaub ntawv, tshem tawm cov txiaj ntsig txawv txav, suav cov nqi nruab nrab (suab nrov tshaj tawm thiab nthwv dej amplitude), thiab tom qab ntawd muab cov ntaub ntawv sib piv ntawm txhua qhov ntsuas ntsuas nrog tus nqi nruab nrab. Yog tias tus nqi siab tshaj qhov ntau yam (xws li 6dB txo qis hauv nthwv dej amplitude), nws raug txiav txim siab tias muaj qhov tsis xws luag ntawm qhov ntawd. Txoj kev tshawb nrhiav no tseem tuaj yeem siv rau kev tshawb nrhiav cov phab ntsa hauv av txuas ntxiv thiab cov dej txuag dej.

Zhejiang Gangxin Testing Technology Co., Ltd.

tau tsim nyob rau hauv 2011. Raws li lub teb chaws siab -tech enterprise lees paub los ntawm Zhejiang Provincial Higher People's Tsev Hais Plaub raws li ib tug kev txiav txim authentication lub tsev rau kev tsim engineering zoo, peb tshwj xeeb nyob rau hauv structural kev soj ntsuam thiab kev nyab xeeb kev soj ntsuam ntawm kev tsim kho tej yaam num, tshwj xeeb cov cuab yeej, kev sib txuas lus yees, electromagnetic ib puag ncig, loj txuas hniav, thiab tsim kev ruaj ntseg appraisal appraisal.

Lub tuam txhab muaj ntau tshaj 100 tus kws tshaj lij thiab cov neeg ua haujlwm, tshaj 90% ntawm cov neeg tuav ntau yam nruab nrab thiab cov ntawv pov thawj kev tshaj lij. Nruab nrog cov cuab yeej ntsuas ua tiav muaj nqis tshaj RMB 10 lab, peb txoj kev lag luam npog tag nrho lub tebchaws.