混凝土墊(dian)層澆筑(zhu)前(qian)需(xu)要(yao)圈定(ding)墊(dian)層范(fan)圍及位置(zhi)(zhi)，并(bing)設(she)(she)置(zhi)(zhi)模板(ban)，保(bao)證墊(dian)層的(de)厚度和(he)尺(chi)寸。下(xia)部預(yu)(yu)制檢查(cha)井(jing)(jing)模具井(jing)(jing)室吊裝(zhuang)前(qian)應在(zai)墊(dian)層上(shang)鋪設(she)(she)好平砂漿，云南沉(chen)井(jing)(jing)井(jing)(jing)筒(tong)，使得檢查(cha)井(jing)(jing)井(jing)(jing)室與(yu)墊(dian)層更好的(de)接觸融(rong)合。混凝土墊(dian)層澆筑(zhu)前(qian)需(xu)要(yao)圈定(ding)墊(dian)層范(fan)圍及位置(zhi)(zhi)，并(bing)設(she)(she)置(zhi)(zhi)模板(ban)，保(bao)證墊(dian)層的(de)厚度和(he)尺(chi)寸。下(xia)部預(yu)(yu)制檢查(cha)井(jing)(jing)模具井(jing)(jing)室吊裝(zhuang)前(qian)應在(zai)墊(dian)層上(shang)鋪設(she)(she)好平砂漿，使得檢查(cha)井(jing)(jing)井(jing)(jing)室與(yu)墊(dian)層更好的(de)接觸融(rong)合。

預(yu)(yu)制(zhi)檢查(cha)井(jing)(jing)(jing)(jing)(jing)(jing)鋼(gang)模(mo)(mo)具(ju)土(tu)方(fang)采用機械開(kai)挖(wa)，專(zhuan)人(ren)進行(xing)標高復核(he)，防止土(tu)方(fang)超挖(wa)。土(tu)方(fang)開(kai)挖(wa)至檢查(cha)井(jing)(jing)(jing)(jing)(jing)(jing)鋼(gang)模(mo)(mo)具(ju)底部高程以上20cm～30mm 后采用人(ren)工(gong)清底。預(yu)(yu)制(zhi)檢查(cha)井(jing)(jing)(jing)(jing)(jing)(jing)模(mo)(mo)具(ju)施工(gong)時，沉(chen)(chen)井(jing)(jing)(jing)(jing)(jing)(jing)井(jing)(jing)(jing)(jing)(jing)(jing)筒(tong)廠家(jia)，根(gen)據(ju)井(jing)(jing)(jing)(jing)(jing)(jing)深不(bu)同(tong)，沉(chen)(chen)井(jing)(jing)(jing)(jing)(jing)(jing)井(jing)(jing)(jing)(jing)(jing)(jing)筒(tong)報(bao)價(jia)，確定不(bu)同(tong)的地基施工(gong)承載力要求，同(tong)時滿足設(she)計要求。經檢驗，沉(chen)(chen)井(jing)(jing)(jing)(jing)(jing)(jing)井(jing)(jing)(jing)(jing)(jing)(jing)筒(tong)廠價(jia)，地基承載力達(da)到(dao)設(she)計即可墊(dian)層(ceng)施工(gong)。預(yu)(yu)制(zhi)檢查(cha)井(jing)(jing)(jing)(jing)(jing)(jing)模(mo)(mo)具(ju)墊(dian)層(ceng)采用C15 混凝土(tu)墊(dian)層(ceng)，墊(dian)層(ceng)下再鋪設(she)3∶7 灰土(tu)。

在路(lu)(lu)基(ji)或(huo)(huo)(huo)(huo)路(lu)(lu)面基(ji)層(ceng)(ceng)和墊(dian)層(ceng)(ceng)施(shi)工完后再反(fan)挖， 用砌體砌筑(zhu)(zhu)或(huo)(huo)(huo)(huo)安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)預(yu)制模塊或(huo)(huo)(huo)(huo)現(xian)澆(jiao)鋼筋(jin)混凝土。其中預(yu)制混凝土裝(zhuang)(zhuang)(zhuang)配式檢(jian)(jian)(jian)查(cha)井(jing)(jing)傳統作法如(ru)包(bao)括(kuo)如(ru)下(xia)步驟(zou)：檢(jian)(jian)(jian)查(cha)井(jing)(jing)基(ji)礎基(ji)坑開挖一(yi)安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)或(huo)(huo)(huo)(huo)現(xian)澆(jiao)檢(jian)(jian)(jian)查(cha)井(jing)(jing)井(jing)(jing)室底(di)板一(yi)砌筑(zhu)(zhu)或(huo)(huo)(huo)(huo)安(an)(an)(an) 裝(zhuang)(zhuang)(zhuang)或(huo)(huo)(huo)(huo)現(xian)澆(jiao)檢(jian)(jian)(jian)查(cha)井(jing)(jing)井(jing)(jing)室墻壁一(yi)砌筑(zhu)(zhu)或(huo)(huo)(huo)(huo)安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)或(huo)(huo)(huo)(huo)現(xian)澆(jiao)檢(jian)(jian)(jian)查(cha)井(jing)(jing)井(jing)(jing)室，安(an)(an)(an)放連接管一(yi)砌筑(zhu)(zhu)或(huo)(huo)(huo)(huo)安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)或(huo)(huo)(huo)(huo)現(xian) 澆(jiao)檢(jian)(jian)(jian)查(cha)井(jing)(jing)井(jing)(jing)室，安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)或(huo)(huo)(huo)(huo)現(xian)澆(jiao)檢(jian)(jian)(jian)查(cha)井(jing)(jing)井(jing)(jing)室蓋(gai)板一(yi)肥槽回填，路(lu)(lu)基(ji)施(shi)工一(yi)反(fan)挖路(lu)(lu)基(ji)中井(jing)(jing)筒(tong)(tong)基(ji)坑 -砌筑(zhu)(zhu)或(huo)(huo)(huo)(huo)安(an)(an)(an)放井(jing)(jing)筒(tong)(tong)一(yi)路(lu)(lu)面墊(dian)層(ceng)(ceng)、基(ji)層(ceng)(ceng)施(shi)工一(yi)反(fan)挖墊(dian)層(ceng)(ceng)、基(ji)層(ceng)(ceng)中井(jing)(jing)筒(tong)(tong)基(ji)坑一(yi)砌筑(zhu)(zhu)或(huo)(huo)(huo)(huo)安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)井(jing)(jing)筒(tong)(tong)，回填修補。