Field Measurement of the Rubble Masonry Ground Deformation under the Jackfruit Tree Development

Abstract

The paper objective presents the Field measurement of the Rubble Masonry Ground Deformation under Consideration of the Jackfruit Tree Development after 8 years. Results show the crack’s appearance on the grout surface which made small fragments with different lengths and diameters areas sizes. The maximum values of the depths, widths, and lengths of cracks show 30mm, 35mm, and 90 mm; whereas the maximum length appeared on the surface area sizes of 2.350m at the stool; compared with the minimum value of 5mm distance 1.5m. On the other hand, the brick lining increasing the pavement obtained 7cm. Moreover, the development cycle of the jackfruit was done carefully by the Vietnam Standard which included care time, fertilizer, and water supply cycle. Results described particularly in the heights, diameters, and years old as 3 months, 1 year, 3 years, 5 years, and 8 years: 0.3mx15cm; 1.2mx35cm; 2.5mx58cm; 4.0mx72cm; and 6.0x99cm. In conclusion, the research results can use for the references for civil, road, and geology engineering to forecast and it is not recommended to plant jackfruit trees near the ground of houses, pavements, and roads a distance of less than 5m; replace with a distance of rather than 5m to be safe ground.