Identification of Geotextile Productivity in Soil Improvement Projects using Webcyclone

Peat soil is a type of soil having a low bearing capacity. If the ability to support the load is lower than the weight of the construction that must be borne, there will be a bearing capacity failure. Likewise, uneven compression (differential settlement) will cause structural cracking or tilted construction. Soil improvement is needed for land conditions that have low bearing capacity. The 15 MW Tanjung Selor PLTMG project is located in East Kalimantan Province with an area of 10816.51 m2 with peat soil conditions and high water level. Webcyclone is one of the web based recurring simulation programs used to analyze the productivity of a construction work. Based on the analysis of productivity by using webcyclone, the time required for soil improvement work using geotextile is 6.06 days.


Introduction
According to Estu Yulianto,et al (2012) that peat soil is an organic soil consisting of fibrous peat and non fibrous peat, some of the research showed that the physical properties of peat soil are low with the numbers of large pores, high moisture content and also volume weight of soil/density is small, so that the lead bearing capacity of peat soil is low.
The area of peat soil that is large enough is a constraint in the development of the infrastructure of a region. This is due to the peat soil is the soil is very soft with a bearing capacity that is very small and has easy-to-incompressible if there are loads that work on it.
If the ability of the soil to support a load smaller than the weight of the construction should be assuming there will be failure (bearing capacity failure). So also with the decline of the uneven (differential settlement) will lead to the occurrence of a cracked structure or tilting of the structure.
The work of soil improvement is needed on the condition of the land has a bearing capacity of soil is low anda also it needs to the project PLTMG Tanjung Selor 15 MW.
The Method to be used of soil improvement in the project PLTMG Tanjung Selor 15 MW is geotextile and it will be analyze based on time by using Webcyclone.

Theoretical framework
According to Geosindo (2012), geotextile has several properties, among others, sheets of synthetic thin, flexible, permeable used for the stabilization and improvement of the soil. Utilization of geotextile is a modern way in an effort to repair the soft soil. There are 2 types of geotextile, namely woven and non woven. According to Lyta Pratama,et al (2016), Webcyclone is one of the programs used to analyze the simulated operation of the cyclone with a web-based, the output of the Webcyclone is a value of the productivity of an operation. In calculating the productivity of the work of soil improvement by using geotextile materials and very influential on the duration of work in the field using a formula approach to calculating the duration of the work is the amount of work / productivity.
The stages in analyzing time job with Webcyclone is as follows :the identification process of the work; determine the work task, duration, and resouces; modeling flow unit diagram; manufacture of coding input; the analysis of the productivity of the work.Description of each of the components used when assembling a simulation model using Webcyclone is shown.

Research method
According to Abu Achmadi, et al (2012), research methodology derived from "method" which means an appropriate way to do something and "logos" which means science or knowledge. So, methodology is a way of doing something using mind accurately to achieve a goal. While research is an activity to find, noted, formulate and analyze until compiling the repot.
Research began with formulate problems has been formulated in the background research and then it thet reflect the steps to solve research problems. From literature review and also the collection data of primary and secondary, it can be seen data needed to do identification of geotextile productivity in soil improvement projects.
The method used in the preparation of this research is a quantitative research, i.e. research with data in the form of numbers or qualitative data that numbering. At the result and discussion, writers will summarize the results of the analysis that has been done earlier and later will be the result of this research. The research stage can be explained in the flowcharts in figure 3.