In light of smooth blasting technologies currently available in China and tunnel construction practices,the author has carried out experimental study of smooth blasting in a deep narrow-bore soft-rock pilot tunnel that is located in Baozhen on the railway line between Yichang and Wanzhou with the purpose of providing technical support for similar blasing projects.

Analysis of radius and depth of shield tunnel on its seismic response

Same as the burial depth,the burial time also has great effect on the evolution of porosity of the classic rocks during compaction,which is clarified by three aspects in this paper.

Based on the vertical sealing mechanism of a fault, by analyzing the relation between the pressure form overlap sedimentary load, distribution conditions of mudstone deformation characteristics of mudstone in fault zone and depth, this paper studied the vertical sealing characteristics of a fault in section.

The relationship in drainage pipeline size and buried depth and the technical measure for controlpoint;

Calculating buried depth of transverse sills for the debris flow drainage groove with soft foundation

The multi-polar coordinate,complex function and stress wave theory are employed to study the influence of buried depth on critical vibration velocity of circular cavity induced by blasting vibration,a circular cavity with large radius is used to replace the straight boundary of the half space.

Effects of burial depth on the liquefaction response of underground structures during an earthquake excitation;

Effects of temperature,water potential and burial depth on seed germination of Artemisia Halodengdron

The ground vibrations were calculated to analyze the influences of elastic modulus of soils and the burial depth of tunnels.

Analysis model of uplift pile is introduced;at the same time from three aspects: friction,excavation width and embedded depth factors influencing bearing capacity are analyzed,which provides good theoretical references for the application of uplift pile.

At the same time the influences of the width and embedded depth on the bearing capacity are discussed and a new proposal is mentioned for sampling value of the bearing capacity s correction factors of composite foundation.