The essay analyzes shuttle cracks produced in the middle of the reinforced concrete beam, and deals with a few aspects of common shapelessness, it also discusses the main reason why the shuttle cracks appear and offers what should be paid attention to in designing and carrying, and some general managing methods after the cracks come.

Complex fracture shapes in hydraulic fracturing with orientated perforations

The effects of some factors on fracturing well production performance is detailedly studied with finite element method, focusing on the description and research of fracture shape and variable fracture permeability.

Causes and precautions of the crack in the masonry structural wall;

The causes and influential factors of cracks in concrete structure are analyzed in this paper and the corresponding preventing measures are put forward.

In concrete structure project common strain crack preventing and controlling;

The causes and preventive measures of deformation cracks on the thin-wall pier of bridge;

Mechanism of large bulk concrete deformation crack and its calculation analysis;

Analysis of reason and controlling method in deformation cracks in basement RC wall in high-rise building

The prevention measure of the distortion crack in the wall of masonry structure;

The cracks in concrete component of bridges and culverts compose load crack and distortion crack.