Application of microbially induced calcium carbonate

The mechanical properties of soil are very important for engineering application and construction purposes because of the increasing infrastructure. Generally, each soil has its specific properties depending upon the location of the present and historical conditions and on human activities (Harkes et al., 2010). When soil is …

Mechanical properties and mechanism of soil treated with …

The loose structure and low mechanical strength of the surface soil make it vulnerable to damage under erosion conditions. Slope ecological protection is one of the effective methods to improve the stability of slope soil. ... especially the chemical mechanism of the material on the enhancement of soil mechanical properties is not …

Mechanical behavior of frozen soil improved with

The thicker AFt crystals result in a higher strength and AFt plays an important role in improving the mechanical properties of frozen soils.The study verified that Sulphoaluminate cement was an ...

Study on Mechanical Properties of Soil Stabilization by …

The tensile and shear properties of plant roots are important factors that determine their slope protection and are also direct indicators for evaluating plant roots for slope protection. In order to explore the soil-fixing properties of root system and root–soil composite of Indigofera amblyantha and Cassia bicapsularis, the high and steep slope of …

Mechanical Properties of Kaolinite/Fiber Soil Composite

The mechanical properties of a kaolinite/fiber soil composite were evaluated by a series of laboratory unconfined‐compression, splitting‐tension, three‐point‐bending, and hydraulic‐conductivity tests. The inclusion of randomly distributed fibers ...

Influence of Coarse Grain Content on the Mechanical Properties …

Coarse-grained red sandstone soil is often used as embankment filling material but is prone to being broken by extrusion, which lowers the stability of the roadbed. This paper aimed to clarify the influence of the variation in coarse-grain content on the mechanical properties of coarse-grained red sandstone soil. Soil with a grain size …

2.4: Soil Mechanical Parameters

There are a variety of parameters used to describe the relative proportions of air (gas), water (liquid) and solids in a soil. This section defines these parameters and some of their interrelationships. The basic notation is as follows: Vg, Vl, and Vs represent the volumes …

Experimental study on the evolution of the drained mechanical

Internal erosion can cause geotechnical structures to fail due to the loss of fine particles, which is induced by internal erosion that can weaken the mechanical properties of soil. Few studies have focused on the effect of internal erosion on the mechanical properties of soil. Accordingly, the present paper studies the evolution …

Soil mechanics | Compaction, Shear Strength & Consolidation

pedology. consolidation. soil mechanics, the study of the physical properties and utilization of soils, especially used in planning foundations for structures and subgrades for highways. The first scientific study of soil mechanics was undertaken by French physicist Charles-Augustin de Coulomb, who published a theory of earth pressure in 1773.

Soil Structure and Mechanical Strength | SpringerLink

The mechanical strength of structured soils depends on aggregation and history of hydraulic stresses (degree of maximum pre-drying), as well as the shape and …

Physical and mechanical properties of calcareous soils: A …

position, and mechan ical properties of calcareou s soil was examined based upo n the results. Results show that the calcareous soil in the South China Sea has a high calciu m carbonate con-. tent ...

CHAPTER 1. SOIL PHYSICAL PROPERTIES

Principle of operation: Based on emission of neutrons (1n) by a radioactive source. These so-called fast neutrons (about 5 MeV) collide with atoms in surrounding soil. Since …

Study on coupling effect of soil structure and …

Soil structure and overconsolidation are two important factors that affect soil strength. Current research studies have primarily focused on the influence of single factors, and relatively few studies have studied the coupling effect of the two. In this paper, the effects of structure and overconsolidation on the mechanical properties of loess under …

Biopolymers as a sustainable solution for the enhancement of soil

Mechanical properties of biopolymer-stabilised soil-based construction materials. Géotechnique letters. 7 (4), 309–314 (2017). Article Google Scholar

A novel clean biopolymer-based additive to improve mechanical …

The enhanced mechanical and physical properties of the soil caused by hydrocolloids on one hand and the increasing global need for renewable and green materials on the other hand have encouraged investigators to seek new sources of hydrocolloids as soil stabilizers. ... Ahmadi S, Ghasemzadeh H, Changizi F (2021) …

Soil Mechanics: Behavior and Mechanical Properties

Mechanical Properties: Elasticity: Refers to the soil's ability to deform temporarily under stress and return to its original shape when the stress is removed. This is crucial for understanding ...

Soil Mechanical Properties

Soil moisture sensors use different soil physical, chemical and mechanical properties to obtain different types of data including electrical, electromagnetic, optical, …

Effect of temperature on the mechanical properties of fine …

The application of thermal energy in soil can influence its properties and behaviour. Numerous researchers have recognized the effect of thermal energy on properties of fine-grained soil such as shear strength, permeability, pore water pressure, consolidation, creep index, mineralogical composition, etc. This effect is mainly attributed …

A state-of-the-art review of polymers used in soil stabilization

Chemical soil stabilization is the alteration of soil properties to improve the engineering performance of the stabilized soil over its un-stabilized counterpart. The major categories of concern for chemically stabilized soils include mechanical properties – mainly compressive strength and shear strength, permeability, volume stability and ...

Mechanical properties of phosphogypsum-soil stabilized …

However, the mechanical properties of PG stabilized by lime-activated GGBS are not understood. This study attempted to mix PG and soil to make a PG-soil, and lime-activated GGBS was used as a treatment agent. The compaction test and unconfined compression strength test were conducted to investigate the mechanical properties of …

(PDF) Study on the mechanical properties of embankment soil …

In addition, the particle size distribution of soil, soil bonding materials, and mechanical properties are closely related to the strength of the soil ( Namdar et al., 2014 ; Nie et al., 2021 ...

Soil mechanics

Soil classification is the separation of soil into classes or groups each having similar characteristics and potentially similar behaviour. A classification for engineering purposes should be based mainly on …

Mechanical properties of soil

The mechanical properties of soil are concerned with the identification and determination of its behavior under the influence of loads in terms of the extent of its resistance, its bearing, the amount of its subsidence, the degree of compaction and its various formations.

Role of iron oxide content on mechanical properties of

Granite residual soil is a widely encountered clayey soil with unique microscopic soil structures. Its soil structures mainly stem from the presence of interparticle cementation by iron oxide. An attempt is made herein to experimentally quantify the impact of interparticle iron oxide cementation on soil's mechanical properties, particularly in …

Soil Mechanical Properties Testing | Coupi

Soil geotechnical properties are commonly measured using the triaxial shear, the direct shear, and the tensile strength laboratory tests. In-situ soil mechanical properties are often estimated using penetrometer force as a function of penetration depth measurements or other in situ tests. DEM simulations of physical geotechnical tests are used ...

Mechanical Properties of Soft Soil considering …

The mechanical properties of soft soil are crucial for the design and construction of underground space excavation; however, the current design and numerical analysis of underground spaces consider …

Soil Mechanical Property

Soil Mechanical Property. Most soil mechanical properties depend on the type and content of clay minerals, the interactions between clay mineral surfaces and pore water, the …

Mechanical Properties of Fiber-Reinforced Soil under Triaxial

To study the mechanical properties of Y-shaped polypropylene fiber-reinforced subgrade fill, the strength characteristics of fiber-reinforced soil with different fiber contents, fiber lengths, and confining pressures were investigated through triaxial compression tests. The test results showed that fiber reinforcement significantly …