Factors Affecting Differences in Results

Oct 13, 2025 by wbrum.org 3 views

Increases the Carrying Capacity of Sand Soil with Non Woven Geotextile: An Experimental Study

Introduction

Increasing the carrying capacity of the soil is crucial in infrastructure development, especially in sand soil which tends to have low carrying capacity. One method that is widely studied is the use of non woven geotextile as a strengthening agent. This experimental study investigates the effectiveness of the use of non woven geotextile types of Polyester MX-015 in increasing the carrying capacity of shallow square foundations in the sand soil.

Background

Sand soil is a common type of soil used in construction projects, but it has a low carrying capacity compared to other types of soil. This can lead to structural instability and failure of buildings and other infrastructure. Non woven geotextile is a type of geosynthetic material that can be used to strengthen sand soil and increase its carrying capacity. Geotextile is a permeable fabric that can be used to improve the stability and durability of soil.

Methodology

This research was conducted by building a shallow square foundation model placed on sand. Non woven geotextile was then installed in various configurations, including the distance variation between geotextile and foundation, the distance between the geotextile sheet, the size of the geotextile sheet, and the number of geotextile layers. The test results show that the addition of geotextile significantly increases the carrying capacity of the soil.

Interesting Results

The Collapse of the Punching Shear Model

Test shows that the model experiences the collapse of the punching shear type (Pons). This shows that geotextile plays an important role in holding loads and preventing excessive deformation of the soil.

Geotextile Pull Distribution

Geotextile experienced a surrounding pull at the location around the foundation, with the top layer and the second layer experienced a larger pull. This shows that geotextile effectively moves the load to a wider area.

Optimal Geotextile Distance

Research shows that the placement of geotextile with a distance of about 0.38-0.68 times the width of the foundation (b) contributes the addition of the largest carrying capacity. The greater distance (around 1.58b) shows that the dominant carrying capacity contribution is given by the top geotextile layer.

Effect of Size and Number of Geotextile Layers

The results show that the increase in geotextile size from 1B to 2B provides a significant increase in carrying capacity. Adding further size does not show a significant increase. Likewise with the number of geotextile layers, the addition from one to two layers gives a significant increase in carrying capacity, but the addition of the next layer does not provide a significant increase.

Factors Affecting Differences in Results

It is important to note that differences in results obtained by previous research may be caused by differences in several factors, such as:

Strengthening Material

Types and characteristics of geotextile used.

Types of Sand Material

Physical and mechanical properties of sand soil.

Sand Soil Density

Soil density can affect its carrying capacity.

Geometric Model Installation of Strengthening

Configuration and Design of Geotextile Installation.

Conclusion

The results of this study indicate that the use of non woven geotextile is an effective solution to increase the carrying capacity of sand soils on shallow foundations. The position and design of proper geotextile installation can maximize the contribution of additional carrying capacity. This study provides important information for practitioners and researchers in designing and applying optimal geotextile strengthening solutions in infrastructure development on sand land.

Suggestion

Further research can be carried out to examine the effect of other factors such as the type of sand soil, the depth of the foundation, and the load applied to geotextile performance. In addition, research on the long-term behavior of geotextile in sand soil is also needed to ensure the resistance and effectiveness of the use of geotextile as a reinforcement.

Implications

The findings of this study have significant implications for the design and construction of infrastructure projects on sand soil. The use of non woven geotextile can provide a cost-effective and efficient solution to increase the carrying capacity of sand soils, reducing the risk of structural failure and ensuring the safety of buildings and other infrastructure.

Limitations

This study has several limitations that should be addressed in future research. The study only examined the effect of non woven geotextile on shallow square foundations, and further research is needed to examine its effect on other types of foundations and soil conditions. Additionally, the study only examined the short-term behavior of geotextile in sand soil, and further research is needed to examine its long-term behavior.

Future Research Directions

Future research should focus on examining the effect of other factors such as the type of sand soil, the depth of the foundation, and the load applied to geotextile performance. Additionally, research on the long-term behavior of geotextile in sand soil is also needed to ensure the resistance and effectiveness of the use of geotextile as a reinforcement.

Conclusion

In conclusion, this study demonstrates the effectiveness of non woven geotextile in increasing the carrying capacity of sand soils on shallow foundations. The position and design of proper geotextile installation can maximize the contribution of additional carrying capacity. This study provides important information for practitioners and researchers in designing and applying optimal geotextile strengthening solutions in infrastructure development on sand land.
Frequently Asked Questions (FAQs) about Non Woven Geotextile for Increasing the Carrying Capacity of Sand Soil

Q: What is non woven geotextile?

A: Non woven geotextile is a type of geosynthetic material that is made from a combination of natural and synthetic fibers. It is a permeable fabric that can be used to improve the stability and durability of soil.

Q: How does non woven geotextile increase the carrying capacity of sand soil?

A: Non woven geotextile increases the carrying capacity of sand soil by providing additional strength and stability to the soil. It does this by distributing the load of the foundation evenly across the soil, reducing the risk of settlement and failure.

Q: What are the benefits of using non woven geotextile?

A: The benefits of using non woven geotextile include:

Increased carrying capacity of sand soil
Improved stability and durability of soil
Reduced risk of settlement and failure
Cost-effective solution
Easy to install

Q: What types of foundations can benefit from non woven geotextile?

A: Non woven geotextile can be used to improve the carrying capacity of shallow square foundations, as well as other types of foundations such as strip foundations and raft foundations.

Q: How is non woven geotextile installed?

A: Non woven geotextile is typically installed by laying it on top of the soil and then covering it with a layer of aggregate or sand. The geotextile is then secured in place using geogrids or other types of reinforcement.

Q: What are the factors that affect the performance of non woven geotextile?

A: The factors that affect the performance of non woven geotextile include:

Type and quality of geotextile used
Soil type and properties
Foundation type and size
Load applied to the foundation
Installation method and quality

Q: Can non woven geotextile be used in conjunction with other types of reinforcement?

A: Yes, non woven geotextile can be used in conjunction with other types of reinforcement such as geogrids, geotubes, and geopipes.

Q: What are the limitations of non woven geotextile?

A: The limitations of non woven geotextile include:

Limited tensile strength
Limited durability in certain soil conditions
Limited ability to resist high loads
Limited ability to resist high temperatures

Q: What are the future research directions for non woven geotextile?

A: Future research directions for non woven geotextile include:

Examining the effect of different types of geotextile on the carrying capacity of sand soil
Investigating the long-term behavior of non woven geotextile in sand soil
Developing new types of non woven geotextile with improved properties
Examining the use of non woven geotextile in conjunction with other types of reinforcement

Q: What are the implications of this research for the construction industry?

A: The implications of this research for the construction industry include:

Improved understanding of the behavior of non woven geotextile in sand soil
Development of new design guidelines and specifications for non woven geotextile
Increased use of non woven geotextile in construction projects
Improved safety and durability of buildings and other infrastructure

Q: What are the next steps for this research?

A: The next steps for this research include:

Conducting further experiments to examine the behavior of non woven geotextile in different soil conditions
Developing new types of non woven geotextile with improved properties
Examining the use of non woven geotextile in conjunction with other types of reinforcement
Developing new design guidelines and specifications for non woven geotextile.