scholarly journals Evaluation of soil replacement and cement grout injection in soil settlement

2021 ◽  
Vol 1 (2) ◽  
pp. 72-79
Author(s):  
Arief Andriansyah ◽  
Lusmeilia Afriani ◽  
Dyah Indriana Kusumastuti ◽  
Endro P. Wahono
Keyword(s):  
Bearing Capacity ◽  
Soil Stabilization ◽  
Soil Classification ◽  
Cement Grout ◽  
Sieve Analysis ◽  
Grout Injection ◽  
Toll Road ◽  
Dynamic Cone Penetrometer ◽  
Road Project ◽  
Soil Settlement

This paper discusses the process of original soil stabilization in Trans Sumatra Bakauheni-Terbanggi Besar Toll Road Project Package 2 Sidomulyo-Kotabaru. The soil replacement process was conducted at approximately 24 kilometres along the toll’s main road. The original soil bearing capacity analysis stage was by performing a Dynamic Cone Penetrometer (DCP) and Sondir test to analyze the deep of hard soil. A soil replacement was carried out to replace the original soil with soil that has appropriate specification. the piling up process was conducted in stages, which has Sandstone in such of the layer. The research done about the landfill sample was retaken and collected at 68 points. The stockpile soil samples collection was then followed by the analysis which was conducted in the laboratory to find the soil bearing capacity. There are 4 types of bearing capacity parameters analyzed, namely specific gravity, water content, aggregate analysis (Sieve Analysis), and consistency limit (Atterberg Limit). Referring to it, then there was the classification of soil types according to AASHTO M145 & Casagrande Soil Classification System. A point that has settlement after soil replacement is STA 52+000. So, there need to add soil stabilization, that is cement grout injection. Researchers analyzed the soil settlement by interpretation method. Results showed that soil replacement and cement grout injection could decrease a soil settlement by about 15.07 cm to become 0.93 cm.

Soil Stabilization for the Building of Unpaved Runways

2013 ◽  
Vol 723 ◽  
pp. 1060-1067
Author(s):  
Antonello Germinario ◽  
Antonella Schibani
Keyword(s):  
Bearing Capacity ◽  
Calcium Oxide ◽  
Laboratory Tests ◽  
Soil Stabilization ◽  
Soil Classification ◽  
California Bearing Ratio ◽  
Average Value ◽  
Planning Phase

This paper analyzes the bearing capacity of an unpaved runway built in Grazzanise military airport. Structural issues were studied during the planning phase. After carrying out tests required for soil classification, laboratory tests were carried out on different chemical stabilizers available on the market. Four test areas were created at the airport with the aim of finding the best solution in terms of bearing capacity and costs. These analyses showed that the best solution for soil stabilization was recycled ground pozzolan and calcium oxide and tests showed that this materials have a good CBR (California Bearing Ratio) average value.

scholarly journals PERBANDINGAN PENGGUNAAN SEMEN DAN GARAM UNTUK STABILISASI TANAH DASAR

2019 ◽  
Vol 12 (2) ◽  
pp. 93
Author(s):  
Zuhrufah Diana Azza, Gerard Aponno, Dwi Ratnaningsih
Keyword(s):  
Bearing Capacity ◽  
Classification System ◽  
Soil Stabilization ◽  
American Association ◽  
Road Construction ◽  
Soil Classification ◽  
High Plasticity ◽  
The Road ◽  
State Highway ◽  
Before And After

Soil is the key of the road foundations. Soil of high CBR value will have good bearing capacity for road construction. Conversely, soil stabilization must be carried out to the subgrade that has bad bearing capacity. The goals of this analysis are to find out the soil characteristict of before stabilization, CBR values of before and after stabilization, the optimum cement use and salt (NaCl) use as stabilizers.The results of soil poperties test in Silt High Plasticity (MH) based on Unified Soil Classification System (USCS) and A-7-5 based on American Association of State Highway and Transportation Official (AASHTO). The result of CBR without stabilization is 3.64% for standard soaked and 5.13%  for modified soaked. The maximum results of stabilized testing with cement showed 9.802 % CBR; 69.298% CBR of each sample respectively standard and modified soaked test; of salt showed 3.93% CBR; 5.33% CBR of standard and modified soaked test of each sample respectively.   Keywords: CBR, cement, NaCl, soil stabilization

USE OF ACRYLIC COPOLYMER ADDITIVE SOIL STABILIZATION PLUS FOR PREPARATION OF MIXTURES MADE BY COLD RESYCLING TECHNOLOGY AND CRUSHED STONE-SAND MIXTURES IN PAVEMENT FOUNDATION LAYERS

2021 ◽  
Vol 2021 (24) ◽  
pp. 48-59
Author(s):  
Anatolii Mudrychenko ◽  
◽  
Ivan Balashov ◽  
Sergey Illyasch ◽  
◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Soil Stabilization ◽  
Crushed Stone ◽  
Technological Parameters ◽  
Acrylic Copolymer ◽  
Sand Mixture ◽  
Recycling Technology ◽  
Complex Binder ◽  
Cold Recycling ◽  
Pavement Foundation

ntroduction. Rehabilitation of public roads network requires a comprehensive recovery with strengthening of the bearing capacity of the pavement foundation. Rehabilitation of the foundation bearing capacity performed by arranging layers of road material made by cold recycling technology (hereinafter — CRRM) in accordance with [4] or by arranging a layer of crushed stone — sand mixture reinforced with cement or complex binder (hereinafter — CSSM 20) according to [13]. Purpose. The purpose of the work is to study the feasibility of using acrylic additives for the preparation of mixtures made by cold recycling technology and crushed stone-sand mixtures treated with cement in the layers of pavement foundation. Materials and methods. Experimental comparative tests of CRRM and CSSM 20 with different content of complex binder were performed. Results. Feasibility of acrylic additives use has been established (hereinafter — the additive) for the preparation of CRRM and CSSM 20 in the pavement foundation layers. Recommendations on technological parameters of preparation, transportation, laying and compaction of mentioned mixtures are given. Conclusions. Performed researches have shown that according to physical and mechanical indicators CRRM and CSSM20 meet the requirements of the current normative documents of Ukraine. The advantages of use are noted.

scholarly journals Utilization of Waste Materials in Soil Stabilization

2019 ◽  
Vol 9 (2) ◽  
pp. 4459-4463 ◽  
Keyword(s):  
Soil Stabilization ◽  
Soil Strength ◽  
Vital Role ◽  
Waste Materials ◽  
Sieve Analysis ◽  
Ratio Test ◽  
Index Test ◽  
Coir Fiber ◽  
Unconfined Compression Test ◽  
Materials Used

Soil strength plays a vital role in the construction field. The main purpose of this project is to stabilize red soil with the help of various waste materials. The waste materials used are rice husk ash, lime, ground granulated blast furnace slag and coconut coir fiber. These waste materials have been mixed with the soil in the ratio 10%, 20% and 30% and subjected to various tests Specific Gravity Test, Sieve Analysis Test, Plasticity Index Test, Standard Proctor Test, Unconfined Compression test and California Bearing ratio test. A comparative increase in soil strength was found with all the waste materials. Thus, ultimately the soil is stabilized with the help of these waste materials.

scholarly journals Soil classification at Muaro Baru beach of Padang City using CPT data

2021 ◽  
Vol 331 ◽  
pp. 03005
Author(s):  
Rina Yuliet ◽  
Mas Mera ◽  
Krismon Hidayat
Keyword(s):  
Soil Classification ◽  
Soil Profiles ◽  
Sieve Analysis ◽  
Penetration Test ◽  
Empirical Correlations ◽  
Cone Penetration ◽  
Geotechnical Parameters ◽  
Semi Empirical ◽  
Soil Behaviour ◽  
Behaviour Type

Many semi-empiric correlations have been developed to estimate geotechnical parameters based on Cone Penetration Test (CPT) data for various types of soils. This paper aims to classify soil types based on CPT data with several semi-empiric correlations and compare the results of some of these correlations. In this study, the field CPT and the laboratory test were carried out on soil from two closely spaced locations in the estuary area of Muaro Baru, Padang city. The CPT data was used to determine the soil type using several semi-empirical correlations, namely; friction ratios, Schertmann (1978), Robertson and Campanella (1983), and Robertson et al. (1986), then updated by Robertson in 2010. Soil Behaviour Type (SBT) is based on the cone resistance (qc), sleeve friction (qs), and friction ratio (Rf). The Unified Soil Classification System (USCS) is also used to classify soils using sieve analysis. The results showed that from the several semi-empirical correlations obtained compatibility soil classification and soil profiles.

scholarly journals Penerapan Fahp Pada Pemilihan Metode Pelaksanan Erection Box Girder

2020 ◽  
Vol 19 (1) ◽  
pp. 87-98
Author(s):  
Agung Budi Broto ◽  
Dul Azis Mei Maulana
Keyword(s):  
Decision Making ◽  
Implementation Process ◽  
Assessment Process ◽  
Box Girder ◽  
Work Quality ◽  
Toll Road ◽  
A Value ◽  
Road Project ◽  
Implementation Time ◽  
Process Work

Many parties are involved in a construction project, so in deciding a method of implementing the box girder erection many criteria are taken into consideration. Consequently, decision making is not easy for decision makers. A simple, frequently-used, and popular method for decision making is Fuzzy-Analytical Hierarchy Process (F-AHP) which is designed to overcome the problem of multi criteria decision making (MCDM) in the subjective assessment process. This study aims to obtain the correct method of implementing the box girder erection to be used. Based on previous research, the criteria for determining box girder erection method are the criteria for job risk, work quality, implementation time, implementation process, work safety, and work costs. The alternatives compared are the tandem crane method and the launching gantry method. The data in this study were collected through questionnaires distributed to the expert parties involved in Jakarta - Cikampek II Elevated Toll Road Project. F-AHP analysis is based on the weighting  of quantitative criteria as a result of normalized calculations and qualitative criteria from the results of the respondents questionnaires which were then made pairwise comparisons assisted by Microsoft Excel software. The results of the analysis show that the occupational safety criteria are the most influential criteria with a weight of 0.454, then followed by job risk criteria (0.169), implementation time (0.119), work quality (0.114), implementation process (0.084), and work costs (0.061). The most appropriate method used in the work of the box girder erection at Jakarta - Cikampek II Elevated Toll Road Project is a launching gantry method with a value of 0.597, while the tandem crane method has a value of 0.403.

scholarly journals Addition Effect of Petrasoil Additive Material on CBR Value of Soil in Swamp Areas

2019 ◽  
Vol 3 (2) ◽  
pp. 67-70 ◽  
Author(s):  
Andi Herius ◽  
Indrayani Indrayani Indrayani ◽  
Arfan Hasan ◽  
Ahmad Mirza
Keyword(s):  
Water Content ◽  
Soil Water Content ◽  
Construction Projects ◽  
Soil Stabilization ◽  
Road Construction ◽  
Dry Weight ◽  
Soil Conditions ◽  
Index Properties ◽  
Soil Density ◽  
Road Project

Some road construction projects use petrasoil additive to increase soil stabilization, one of then is the Improvement of Tabarfane-Hokmar (Chemical Petrasoil) Road Project in Aru Selatan Timur District, Aru Islands. To obtain the influence of petrasoil aditive material as soil stabilization in swamp areas, a research is needed. petrasoil additives that powder shape are dissolved in water with 3 variations, namely 500 liters, 750 liters, and 1000 liters of water. Tests which carried out include compaction testing, index properties, and CBR. The results showed that the addition of petrasoil mixture with water without being combined with other added ingredients could lead to increasingly unstable soil conditions where the soil water content increased and the dry weight of the soil diminished, meaning that soil density decreases, and the CBR value of soil decreases.

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