Fault fracture zones often form in active fault zones and appear as long extension with stable trending , they are jointly controlled by active faulting , underground water concentration and freezing expansion 斷層裂縫沿?cái)鄬悠扑閹?font color="#cc0033">定向分布,產(chǎn)狀穩(wěn)定,成群產(chǎn)出,與斷層活動(dòng)、地下水運(yùn)移、不均勻凍脹存在密切的關(guān)系,是構(gòu)造變形與融凍變形聯(lián)合、內(nèi)外動(dòng)力耦合產(chǎn)生的復(fù)合成因地裂縫。