TSZ-1/TSZ-3型應(ying)變(bian)(bian)(bian)控制(zhi)式三(san)軸儀按照GB/T50123-1999《土(tu)工(gong)(gong)試(shi)驗方法標準》設計制(zhi)造，用于(yu)測定土(tu)樣在等應(ying)變(bian)(bian)(bian)加荷(he)方式下(xia)土(tu)體的(de)抗(kang)剪(jian)強度、變(bian)(bian)(bian)形特性和(he)(he)空隙水(shui)(shui)壓力(li)(li)(li)。儀器可以進(jin)行(xing)不固(gu)結(jie)(jie)不排水(shui)(shui)剪(jian)(UU)、固(gu)結(jie)(jie)不排水(shui)(shui)剪(jian)(CU)和(he)(he)固(gu)結(jie)(jie)排水(shui)(shui)剪(jian)(CD)的(de)三(san)軸試(shi)驗。應(ying)變(bian)(bian)(bian)控制(zhi)方式由(you)(you)單(dan)片機控制(zhi)，實現無級變(bian)(bian)(bian)速；周圍(wei)(wei)壓力(li)(li)(li)和(he)(he)反壓力(li)(li)(li)由(you)(you)單(dan)片機自動(dong)控制(zhi)。該(gai)儀器圍(wei)(wei)壓較高(gao)，結(jie)(jie)構小巧，操(cao)作簡單(dan)，無須配(pei)空氣(qi)壓縮機和(he)(he)氮氣(qi)瓶(ping)，能滿足高(gao)層(ceng)建(jian)筑及大壩(ba)等大型土(tu)建(jian)工(gong)(gong)程土(tu)工(gong)(gong)試(shi)驗的(de)要(yao)求