AG九游会J9

混凝土无损伤检测

混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)是(shi)(shi)我国(guo)建筑(zhu)(zhu)结(jie)构(gou)(gou)(gou)(gou)(gou)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)最(zui)为(wei)重(zhong)要(yao)(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)材料之一(yi),它的(de)(de)(de)(de)(de)(de)(de)质(zhi)(zhi)(zhi)量(liang)(liang)直接(jie)关系(xi)到结(jie)构(gou)(gou)(gou)(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)安(an)全。多(duo)年(nian)来,结(jie)构(gou)(gou)(gou)(gou)(gou)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)质(zhi)(zhi)(zhi)量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)传统(tong)检(jian)(jian)(jian)(jian)(jian)查方法(fa)是(shi)(shi)以(yi)按规(gui)(gui)(gui)(gui)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)取(qu)样方法(fa),制作的(de)(de)(de)(de)(de)(de)(de)立方体试(shi)件,在规(gui)(gui)(gui)(gui)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)温、湿(shi)度(du)环境下(xia),养(yang)护28天时(shi)按标(biao)(biao)(biao)准(zhun)(zhun)实验(yan)方法(fa)测(ce)(ce)(ce)得(de)的(de)(de)(de)(de)(de)(de)(de)试(shi)件抗压(ya)强(qiang)(qiang)(qiang)度(du)来评定(ding)(ding)结(jie)构(gou)(gou)(gou)(gou)(gou)构(gou)(gou)(gou)(gou)(gou)件的(de)(de)(de)(de)(de)(de)(de)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)强(qiang)(qiang)(qiang)度(du)。用(yong)(yong)试(shi)件实验(yan)测(ce)(ce)(ce)得(de)的(de)(de)(de)(de)(de)(de)(de)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)性能(neng)指标(biao)(biao)(biao),往(wang)往(wang)是(shi)(shi)与结(jie)构(gou)(gou)(gou)(gou)(gou)物(wu)(wu)中的(de)(de)(de)(de)(de)(de)(de)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)的(de)(de)(de)(de)(de)(de)(de)性能(neng)有一(yi)定(ding)(ding)差(cha)别。因此,直接(jie)在结(jie)构(gou)(gou)(gou)(gou)(gou)物(wu)(wu)上检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)质(zhi)(zhi)(zhi)量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)现场检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)技(ji)术(shu),已成为(wei)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)质(zhi)(zhi)(zhi)管理(li)的(de)(de)(de)(de)(de)(de)(de)重(zhong)要(yao)(yao)(yao)(yao)手(shou)段,这一(yi)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)技(ji)术(shu)已引起各国(guo)建筑(zhu)(zhu)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)界的(de)(de)(de)(de)(de)(de)(de)重(zhong)视和(he)承认。 所(suo)谓混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)“无(wu)(wu)损(sun)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)”技(ji)术(shu),就是(shi)(shi)要(yao)(yao)(yao)(yao)在不(bu)破坏(huai)结(jie)构(gou)(gou)(gou)(gou)(gou)构(gou)(gou)(gou)(gou)(gou)件的(de)(de)(de)(de)(de)(de)(de)情况(kuang)下(xia),利用(yong)(yong)测(ce)(ce)(ce)试(shi)仪器获取(qu)有关混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)质(zhi)(zhi)(zhi)量(liang)(liang)等(deng)受力功(gong)能(neng)的(de)(de)(de)(de)(de)(de)(de)物(wu)(wu)理(li)量(liang)(liang),因该(gai)物(wu)(wu)理(li)量(liang)(liang)与混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)质(zhi)(zhi)(zhi)量(liang)(liang)(强(qiang)(qiang)(qiang)度(du)、混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)缺(que)陷(xian))之间有较(jiao)好的(de)(de)(de)(de)(de)(de)(de)相关关系(xi),可采用(yong)(yong)获取(qu)的(de)(de)(de)(de)(de)(de)(de)物(wu)(wu)理(li)量(liang)(liang)去推定(ding)(ding)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)质(zhi)(zhi)(zhi)量(liang)(liang)(强(qiang)(qiang)(qiang)度(du)、混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)缺(que)陷(xian))。一(yi)、混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)无(wu)(wu)损(sun)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)技(ji)术(shu)特点(dian): (一(yi))对混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)结(jie)构(gou)(gou)(gou)(gou)(gou)构(gou)(gou)(gou)(gou)(gou)件不(bu)破坏(huai),可以(yi)获得(de)人们最(zui)需(xu)要(yao)(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)物(wu)(wu)理(li)量(liang)(liang)信息(xi); (二(er)(er))测(ce)(ce)(ce)试(shi)操(cao)作简单,测(ce)(ce)(ce)试(shi)费用(yong)(yong)低; (三)不(bu)受结(jie)构(gou)(gou)(gou)(gou)(gou)物(wu)(wu)的(de)(de)(de)(de)(de)(de)(de)形状与尺(chi)寸(cun)限制,可以(yi)进(jin)行多(duo)次重(zhong)复试(shi)验(yan); (四)可对重(zhong)要(yao)(yao)(yao)(yao)结(jie)构(gou)(gou)(gou)(gou)(gou)部位(wei)长期监(jian)测(ce)(ce)(ce)。 对混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)结(jie)构(gou)(gou)(gou)(gou)(gou)(或(huo)构(gou)(gou)(gou)(gou)(gou)件)进(jin)行检(jian)(jian)(jian)(jian)(jian)(监(jian))测(ce)(ce)(ce),取(qu)得(de)各种信息(xi)后及时(shi)进(jin)行处(chu)理(li),以(yi)减(jian)少损(sun)失,避(bi)免事(shi)(shi)故(gu)发生(sheng)(sheng)等(deng)。实践也(ye)证明了混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)无(wu)(wu)损(sun)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)技(ji)术(shu),显示(shi)了强(qiang)(qiang)(qiang)大(da)的(de)(de)(de)(de)(de)(de)(de)生(sheng)(sheng)命(ming)力。二(er)(er)、被检(jian)(jian)(jian)(jian)(jian)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)所(suo)占(zhan)(zhan)比例(li) 对多(duo)项工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)项目检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)进(jin)行统(tong)计: (一(yi)) 在施工(gong)(gong)(gong)(gong)(gong)过程(cheng)(cheng)中由于管理(li)不(bu)善,造(zao)成质(zhi)(zhi)(zhi)量(liang)(liang)事(shi)(shi)故(gu),如(ru):混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)强(qiang)(qiang)(qiang)度(du)不(bu)够;混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)结(jie)构(gou)(gou)(gou)(gou)(gou)(或(huo)构(gou)(gou)(gou)(gou)(gou)件)出现疏(shu)松、孔洞、峰窝麻(ma)面等(deng)缺(que)陷(xian)的(de)(de)(de)(de)(de)(de)(de)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)约(yue)占(zhan)(zhan)65%; (二(er)(er)) 根据生(sheng)(sheng)产工(gong)(gong)(gong)(gong)(gong)艺、使用(yong)(yong)功(gong)能(neng)改变,在原建筑(zhu)(zhu)物(wu)(wu)上进(jin)行改造(zao),如(ru)需(xu)要(yao)(yao)(yao)(yao)加高接(jie)层(ceng)或(huo)者楼面荷(he)载改变等(deng),鉴定(ding)(ding)原建筑(zhu)(zhu)物(wu)(wu)约(yue)占(zhan)(zhan)20%; (三) 受损(sun)结(jie)构(gou)(gou)(gou)(gou)(gou),如(ru)受化(hua)(hua)学介质(zhi)(zhi)(zhi)侵蚀、火灾、地震等(deng)的(de)(de)(de)(de)(de)(de)(de)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)约(yue)占(zhan)(zhan)10%; (四) 重(zhong)要(yao)(yao)(yao)(yao)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)验(yan)收检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce),如(ru)核电站安(an)全壳、大(da)型电站基础、水库(ku)闸门和(he)电站大(da)坝等(deng)的(de)(de)(de)(de)(de)(de)(de)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)约(yue)占(zhan)(zhan)5%。 三、标(biao)(biao)(biao)准(zhun)(zhun)规(gui)(gui)(gui)(gui)程(cheng)(cheng) AG九游会J9 编(bian)制了AG九游会J9 现行的(de)(de)(de)(de)(de)(de)(de)全部混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)无(wu)(wu)损(sun)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)规(gui)(gui)(gui)(gui)程(cheng)(cheng),这些规(gui)(gui)(gui)(gui)程(cheng)(cheng)是(shi)(shi): A 中华人民共和(he)国(guo)行业标(biao)(biao)(biao)准(zhun)(zhun) 《回弹法(fa)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)抗压(ya)强(qiang)(qiang)(qiang)度(du)技(ji)术(shu)规(gui)(gui)(gui)(gui)程(cheng)(cheng)》 (JGJ/T23-92) B 中国(guo)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)建设(she)标(biao)(biao)(biao)准(zhun)(zhun)化(hua)(hua)协(xie)会(hui)(hui)标(biao)(biao)(biao)准(zhun)(zhun) 《超声(sheng)回弹综合(he)法(fa)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)强(qiang)(qiang)(qiang)度(du)技(ji)术(shu)规(gui)(gui)(gui)(gui)程(cheng)(cheng)》 (CECS 02:88) C 中国(guo)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)建设(she)标(biao)(biao)(biao)准(zhun)(zhun)化(hua)(hua)协(xie)会(hui)(hui)标(biao)(biao)(biao)准(zhun)(zhun) 《钻芯法(fa)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)强(qiang)(qiang)(qiang)度(du)技(ji)术(shu)规(gui)(gui)(gui)(gui)程(cheng)(cheng)》 (CECS 03:88) D 中国(guo)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)建设(she)标(biao)(biao)(biao)准(zhun)(zhun)化(hua)(hua)协(xie)会(hui)(hui)标(biao)(biao)(biao)准(zhun)(zhun) 《超声(sheng)法(fa)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)缺(que)损(sun)技(ji)术(shu)规(gui)(gui)(gui)(gui)程(cheng)(cheng)》 (CECS 21:90) E 中国(guo)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)建设(she)标(biao)(biao)(biao)准(zhun)(zhun)化(hua)(hua)协(xie)会(hui)(hui)标(biao)(biao)(biao)准(zhun)(zhun) 《后装(zhuang)拔出法(fa)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)(tu)(tu)强(qiang)(qiang)(qiang)度(du)技(ji)术(shu)规(gui)(gui)(gui)(gui)程(cheng)(cheng)》 (CECS 69:64) F 中国(guo)建筑(zhu)(zhu)科学研究院企业标(biao)(biao)(biao)准(zhun)(zhun) 《贯入法(fa)检(jian)(jian)(jian)(jian)(jian)测(ce)(ce)(ce)砌筑(zhu)(zhu)砂浆抗压(ya)强(qiang)(qiang)(qiang)度(du)技(ji)术(shu)规(gui)(gui)(gui)(gui)程(cheng)(cheng)》 (Q/JY11-1998) G

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