The influence of shallow buried double-line parallel rectangular pipe jacking construction on ground settlement deformation

Abstract

To study the distribution characteristics and variation rules of ground subsidence. The influence law of overburden thickness is studied by 3D numerical simulation. The cumulative sedimentation of the ground decreases linearly with the increase of the thickness of the casing in the range of 0.5 times the width of the central axis of the large pipe tunnel. The cumulative settlement of the ground increases with the thickness of the casing. The thickness of the casing on both sides of the central axis of the small pipe tunnel, the superposition disturbance of the large and small pipe jackers is significantly.

Keywords

• Rectangular pipe jacking
• Shallow overburden
• Ground settlement
• Numerical simulation