地基是指建筑物下面支承基礎的土體或巖體。基礎指建筑底部與地基接觸的承重構件，它的作用是把建筑上部的荷載傳給地基，基礎按構造形式分：可分為獨立基礎、條形基礎、井格基礎、板式基礎、筏形基礎、箱形基礎、樁基礎等。 基礎不同，算法不同，而且地基基礎檢測工程量還有(you)清單量和定額量之分。

條(tiao)形基(ji)礎(chu)計算方法：灰土(tu)(tu)墊(dian)層(ceng)(ceng)工(gong)(gong)程(cheng)(cheng)量(liang)(liang)：外(wai)墻條(tiao)基(ji)灰土(tu)(tu)工(gong)(gong)程(cheng)(cheng)量(liang)(liang)＝外(wai)墻灰土(tu)(tu)中心線(xian)的(de)長(chang)(chang)度(du)(du)(du)×灰土(tu)(tu)的(de)截面積(ji)(ji)；內墻條(tiao)基(ji)灰土(tu)(tu)工(gong)(gong)程(cheng)(cheng)量(liang)(liang)＝內墻灰土(tu)(tu)凈長(chang)(chang)線(xian)的(de)長(chang)(chang)度(du)(du)(du)×灰土(tu)(tu)的(de)截面積(ji)(ji)。砼(tong)(tong)墊(dian)層(ceng)(ceng)工(gong)(gong)程(cheng)(cheng)量(liang)(liang)：外(wai)墻條(tiao)基(ji)砼(tong)(tong)墊(dian)層(ceng)(ceng)基(ji)礎(chu)＝外(wai)墻條(tiao)形基(ji)礎(chu)砼(tong)(tong)墊(dian)層(ceng)(ceng)的(de)中心線(xian)長(chang)(chang)度(du)(du)(du)×砼(tong)(tong)墊(dian)層(ceng)(ceng)的(de)截面積(ji)(ji)；內墻條(tiao)基(ji)砼(tong)(tong)墊(dian)層(ceng)(ceng)基(ji)礎(chu)＝內墻條(tiao)形基(ji)礎(chu)砼(tong)(tong)墊(dian)層(ceng)(ceng)的(de)凈長(chang)(chang)線(xian)長(chang)(chang)度(du)(du)(du)×砼(tong)(tong)墊(dian)層(ceng)(ceng)的(de)截面積(ji)(ji)。

條(tiao)形(xing)(xing)(xing)(xing)基(ji)(ji)(ji)(ji)礎(chu)(chu)(chu)工(gong)(gong)程量(liang)：外墻(qiang)條(tiao)形(xing)(xing)(xing)(xing)基(ji)(ji)(ji)(ji)礎(chu)(chu)(chu)的(de)(de)(de)(de)工(gong)(gong)程量(liang)＝外墻(qiang)條(tiao)形(xing)(xing)(xing)(xing)基(ji)(ji)(ji)(ji)礎(chu)(chu)(chu)中(zhong)心線的(de)(de)(de)(de)長(chang)(chang)(chang)度(du)×條(tiao)形(xing)(xing)(xing)(xing)基(ji)(ji)(ji)(ji)礎(chu)(chu)(chu)的(de)(de)(de)(de)截(jie)(jie)面(mian)積；內(nei)(nei)墻(qiang)條(tiao)形(xing)(xing)(xing)(xing)基(ji)(ji)(ji)(ji)礎(chu)(chu)(chu)的(de)(de)(de)(de)工(gong)(gong)程量(liang)＝內(nei)(nei)墻(qiang)條(tiao)形(xing)(xing)(xing)(xing)基(ji)(ji)(ji)(ji)礎(chu)(chu)(chu)凈(jing)(jing)長(chang)(chang)(chang)線的(de)(de)(de)(de)長(chang)(chang)(chang)度(du)×條(tiao)形(xing)(xing)(xing)(xing)基(ji)(ji)(ji)(ji)礎(chu)(chu)(chu)的(de)(de)(de)(de)截(jie)(jie)面(mian)積；凈(jing)(jing)長(chang)(chang)(chang)線計(ji)算：磚條(tiao)形(xing)(xing)(xing)(xing)基(ji)(ji)(ji)(ji)礎(chu)(chu)(chu)按內(nei)(nei)墻(qiang)凈(jing)(jing)長(chang)(chang)(chang)線計(ji)算；砼條(tiao)形(xing)(xing)(xing)(xing)基(ji)(ji)(ji)(ji)礎(chu)(chu)(chu)按分層凈(jing)(jing)長(chang)(chang)(chang)線計(ji)算。

條形基礎以地圈梁頂為分界線，這就造成了計算墻體時候必須加上+-0.000以下的高度；而且一個工程條形基礎同時出現不同標高的圈梁時候，計算墻體時候必須區分出墻的底標高，對手工造成了麻煩。