土工布施工过程中的主要处理措施和步骤

基底处(chu)理(li)(li)是关键。根据地质特(te)点(dian)(dian)，我们采取(qu)了(le)基底换填(tian)(tian)(tian)、基础大台(tai)阶(jie)开挖(wa)和(he)防(fang)排水(shui)等措施(shi)。对(dui)于边坡(po)(po)，路(lu)堤(di)(di)(di)的(de)(de)(de)原(yuan)坡(po)(po)体在(zai)(zai)施(shi)工(gong)(gong)(gong)前(qian)全部(bu)清(qing)表(biao)，坡(po)(po)体挖(wa)成台(tai)阶(jie)状，阶(jie)宽(kuan)(kuan)3m～5m，最(zui)下一个(ge)台(tai)阶(jie)宽(kuan)(kuan)8m，台(tai)阶(jie)间(jian)设(she)置边坡(po)(po)，并在(zai)(zai)台(tai)阶(jie)上铺(pu)设(she)0.1m厚的(de)(de)(de)TVO材料。针对(dui)渗水(shui)问题，我们设(she)置了(le)盲沟，并与(yu)台(tai)阶(jie)上的(de)(de)(de)TVO材料共(gong)同(tong)构(gou)(gou)成地下防(fang)排水(shui)结(jie)构(gou)(gou)。在(zai)(zai)模(mo)板(ban)(ban)工(gong)(gong)(gong)程(cheng)与(yu)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)方(fang)面(mian)，加(jia)筋(jin)路(lu)堤(di)(di)(di)边坡(po)(po)处(chu)需(xu)要(yao)设(she)置模(mo)板(ban)(ban)，模(mo)板(ban)(ban)由方(fang)木和(he)板(ban)(ban)材制成，由支架固(gu)定。施(shi)工(gong)(gong)(gong)顺序为(wei)(wei)：基地处(chu)理(li)(li)→安(an)放支架→立模(mo)板(ban)(ban)→铺(pu)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)→检测→填(tian)(tian)(tian)土(tu)(tu)。土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)的(de)(de)(de)使用要(yao)点(dian)(dian)为(wei)(wei)：铺(pu)设(she)方(fang)向(xiang)要(yao)与(yu)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)所(suo)承受的(de)(de)(de)应力方(fang)向(xiang)一致，接头不小于0.3m。土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)竖向(xiang)间(jian)距为(wei)(wei)0.4m，水(shui)平长度(du)(du)(du)按(an)设(she)计(ji)(ji)确定，边坡(po)(po)外(wai)侧土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)包(bao)(bao)裹(guo)长度(du)(du)(du)为(wei)(wei)2m。在(zai)(zai)填(tian)(tian)(tian)筑(zhu)过(guo)程(cheng)中，加(jia)筋(jin)路(lu)堤(di)(di)(di)不得超宽(kuan)(kuan)处(chu)理(li)(li)，必(bi)须使用具有足够摩擦(ca)角(jiao)且(qie)符合标(biao)准的(de)(de)(de)填(tian)(tian)(tian)料。摊(tan)铺(pu)平整至关重要(yao)，为(wei)(wei)此我们按(an)纵向(xiang)每15m～20m设(she)标(biao)高桩并挂线标(biao)识，由推土(tu)(tu)机(ji)(ji)初平、平地机(ji)(ji)精平，确保层面(mian)无(wu)显著(zhu)凹凸。随后进行碾压夯(hang)实(shi)，司机(ji)(ji)需(xu)明确范围(wei)、遍(bian)数和(he)速(su)度(du)(du)(du)，遵(zun)循先静后动、先慢后快原(yuan)则，确保搭接长度(du)(du)(du)。含水(shui)率(lv)(lv)对(dui)碾压夯(hang)实(shi)效(xiao)果影响显著(zhu)，若含水(shui)率(lv)(lv)不符，则通过(guo)洒水(shui)或晾晒解决(jue)。最(zui)后是路(lu)堤(di)(di)(di)整修，包(bao)(bao)括(kuo)排水(shui)横坡(po)(po)、平整度(du)(du)(du)和(he)土(tu)(tu)工(gong)(gong)(gong)布(bu)(bu)填(tian)(tian)(tian)层内倾(qing)4%的(de)(de)(de)坡(po)(po)率(lv)(lv)，必(bi)须按(an)照设(she)计(ji)(ji)结(jie)构(gou)(gou)进行。以上就是施(shi)工(gong)(gong)(gong)过(guo)程(cheng)中的(de)(de)(de)主要(yao)处(chu)理(li)(li)措施(shi)和(he)步骤。