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| Slope and Slope Subgrade Reinforcement Technology |
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UpdateTime：[2011/12/16 14:23:33] Hits：[3196] From：TONRY MINING SAFETY SUPPORT TECHNOLOGY CO.,LTD
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Recently, by the University of Science and Technology Beijing shoulder slope and slope of subgrade reinforcement technology research project by the Ministry of Education Science and technology development center identification organization.
According to the introduction, the main contents are as follows:
( 1) the international geotechnical engineering community recognized and widely used software of FLAC2D ( 2.25), FLAC2D ( 3.30) and FLAC3D on the research object of comprehensive simulation calculation, thereby completely mastered the high steep rock slope instability development process, essential features and mechanism, to improve the theory mechanism.
( 2) to formulate the corresponding engineering treatment measures:
A. Taking prestressed anchor solid support measures for unstable high steep slope reinforcement;
B. Using appropriate engineering measures ( such as anchor ) to ensure the relative stability of slope surface;
C landslide reinforcement, put forward " pressure grouting composite anchor pile" technology, namely the use of a plurality of different length of the anchor cell adhesion relatively evenly distributed throughout the pile length, so as to realize the sliding key location lock;
D. The" gravity type anchor plate retaining wall project" on the K105 subgrade downhill slide zone reinforcement, in order to achieve the potential sliding mass block and constraint;
E. Soft soil base of instability slope and landslide slope of subgrade treatment and reinforcement with" pressure grouting composite anchor pile" (" the sleeve valve tube grouting" binding" composite anchor pile technology ." ).
( 3) in Los three Expressway cutting slope and the slope of subgrade reinforcement process for each process, almost all of each field test, prestressed anchor bars from the borehole to installation was thoroughly documented, targeted to the installation of measuring point 122, eventually won over 31000 measured data, for the implementation of the reinforcement provides scientific reference data.
( 4) the strengthened in three on high and steep slope and slope of subgrade slope displacement, prestressed anchor prestress #118alue of long-term observations, ensure Luo highway three smooth traffic and safe operation.
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