Design Optimization of Underground Subway Station Diaphragm Walls Using Numerical Modeling

Ho, Chu E.; Shuang, Hu

doi:10.1061/9780784413272.304

Cited by 3 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An improved equation to calculate the parameter is also provided considering and in this paper (see (5)), which is also different from the equation in Shen et al [19] (see 9). Moreover, because the boundary conditions for vertical and horizontal jet-grouting cases are different, the equation to calculate the value of (see (12)) in this new manuscript is also different from the equation in Shen et al 's [19] paper (see 16).…”

Section: Ground Displacements Induced By Installation Of a Row Of Colmentioning

confidence: 83%

“…(2) The stress at the plastic-elastic zone interface ( ) can then be calculated by substituting the undrained shear strength of soil, , and the coefficient of lateral earth pressure at rest, 0 , into (12). (3) The associated ground displacements in the elastic zone and in the plastic zone induced by installing a horizontal jet-grouting column can be calculated using (1) and (2) and (13)- (14), respectively.…”

Section: Ground Displacements Induced By Installation Of a Row Of Colmentioning

confidence: 99%

“…Jet grouting has been deemed as one of the most widely used ground improvement techniques for strengthening soft soil deposits and preventing groundwater seepage from leaking fractures or fissures [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Jet grouting is frequently used for the launching of shield machines or tunnel construction in complex geological conditions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Simple Method to Predict Ground Displacements Caused by Installing Horizontal Jet-Grouting Columns

Wang

Shen

Cheng

2018

Mathematical Problems in Engineering

View full text Add to dashboard Cite

During the horizontal jet grouting in soft ground, injection of large volumes of water and grout into the soil can lead to significant ground displacements. A simple method is proposed in this paper to predict the ground displacements caused by installing horizontal jet-grouting columns. The process of installing a horizontal column is simplified as the expansion of a cylindrical cavity with a uniform radial stress applied at plastic-elastic interface in a half plane. In this study, the analytical solution is adopted to calculate the deformation induced by the expansion of a cylindrical cavity. Considering the main jetting parameters (jetting pressure of the fluid, flow rate of the fluid, and withdrawal rate of the rod) and the soil properties (stiffness of the surrounding soil), an empirical equation to estimate the radius of plastic zone is developed. Two field tests are carried out in Shanghai, China, to verify the correctness and applicability of the proposed method. Comparisons between the predicted and measured values indicate that the proposed method can provide a reasonable prediction. The proposed simple method can be recommended as a useful tool for the design of ground improvement by means of horizontal jet grouting.

show abstract

Section: Ground Displacements Induced By Installation Of a Row Of Colmentioning

confidence: 83%

Section: Ground Displacements Induced By Installation Of a Row Of Colmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Simple Method to Predict Ground Displacements Caused by Installing Horizontal Jet-Grouting Columns

Wang

Shen

Cheng

2018

Mathematical Problems in Engineering

View full text Add to dashboard Cite

show abstract

Control of Seepage Pressures beneath Cut-and-Cover Excavation in Varved Glacial Silt

2022

Geo-Congress 2022

View full text Add to dashboard Cite

Field Measurements and Design Optimization of Diaphragm Walls

Chen

Yang

Zhang

et al. 2017

Geotechnical Testing Journal

View full text Add to dashboard Cite

This paper presents field measurements of diaphragm walls. During the study, a typical measurement section was embedded with concrete strain meters to measure the forces on and in the diaphragm walls. This permitted an extensive investigation of the internal force changes in diaphragm walls. Furthermore, the stability of diaphragm walls was evaluated and optimized. The data and design optimization led to the following conclusions: variations in the stresses of diaphragm walls were observed with increases in the excavation depth of foundation pits. The strain data obtained from field measurements allowed the calculation of safety factors for the diaphragm walls, which met national code standards. Therefore, the investigated diaphragm walls were judged to be safe. The variations in the diaphragm walls' internal forces were obtained for use as references in the design and construction of similar projects in the future.

show abstract

Design Optimization of Underground Subway Station Diaphragm Walls Using Numerical Modeling

Cited by 3 publications

References 1 publication

Simple Method to Predict Ground Displacements Caused by Installing Horizontal Jet-Grouting Columns

Simple Method to Predict Ground Displacements Caused by Installing Horizontal Jet-Grouting Columns

Control of Seepage Pressures beneath Cut-and-Cover Excavation in Varved Glacial Silt

Field Measurements and Design Optimization of Diaphragm Walls

Contact Info

Product

Resources

About