Pembangunan moda transportasi massal atau Mass Rapid Transit (MRT) diharapkan dalam mengurangi kepadatan mobilitas ibu kota. Pembangunan depot MRT dibangun diatas lahan yang memiliki elevasi yang tidak seragam sehingga diperlukan upaya perbaikan tanah. Upaya stabilisasi yang dilakukan guna meningkatkan kekuatan tanah yang ada, antara lain pekerjaan pengisian galian atau pengurukan (backfill) yang diwajibkan memenuhi persyaratan bagi stabilitas yang baik pada pemadatan maupun daya dukungnya berdasarkan nilai California Bearing Ratio (CBR) tanah tersebut. Salah satu pengujian untuk mendapatkan nilai CBR yaitu menggunakan pengujian Dynamic Cone Penetrometer (DCP). Mengetahui nilai CBR melalui DCP sangat mempermudah pihak pelaksana karena dinilai lebih praktis dan cepat. Namun hasil nilai CBR dari uji DCP dengan nilai CBR laboratorium perlu dilakukan analisa sejauh mana ketelitian kedua nilai tersebut.
Berdasarkan hasil pengujian dan analisa data, dihasilkan hubungan korelasi positif lemah antara nilai CBR hasil uji DCP dan CBR laboratorium per lima tumbukan dan dibagi dengan tingkat penetrasi pada analisa perangkat lunak UK DCP 3.1 yang ditunjukkan dengan nilai korelasi menggunakan regresi linier sederhana sebesar 0.444 dan nilai korelasi menggunakan regresi eksponensial 0.431 dengan persamaan garis regresi linier sederhana sebesar Y = 2.951x + 1.656 dan persamaan regresi eksponensial sebesar Y = 1.876. €0.663x

Construction of the mode of transportation of bulk or Mass Rapid Transit (MRT) is expected in reducing the density of the mobility of capital. The construction of the MRT depot was built on land that has no uniform elevation so that required an effort of improvement of land. Stabilization efforts undertaken in order to increase the strength of the existing ground, among other job filling minerals or backfill which are obliged to meet the requirements for a good stability on compaction or power support based on the value of the California Bearing Ratio (CBR) land. Backfill work using this type of poor soil so the ground does not allow done test CBR field so do penetration testing Dynamic Cone Penetrometer (DCP). Knowing the value of CBR through DCP very ease implementing parties because it was judged more practical and fast. But the results of the test CBR value of DCP CBR value of laboratory analysis needs to be done as far as accuracy of both those values.
This research will be sought on the calculation of correlation between the laboratory and DCP CBR value on land backfill construction of Lebak Bulus, Jakarta MRT Depot using linear regression method is simple and exponential regression. The data obtained from the results of testing in the laboratory of soil mechanics CBR STT PLN Jakarta, while the value of the CBR test results the test results obtained from DCP DCP field by team QC Lab of Tokyu - Wika Joint Operation. From the results of data analysis, generated a positive correlation relationship between the weak value of the CBR test results and DCP CBR laboratories per five collisions and shared with the penetration rate at UK software DCP analysis 3.1 the value of simple linear regression using correlation of correlation and the value of using 0444 regression exponential regression line equation 0431 with simple linear of 2.951 x + Y = 1,656 exponential regression equation and of Y = 1,876. e 0.663 x