The Engineering Test About A New Kind Of Hot Melting Recoverable Anchor Rope With Pressure Dispersion Type

In recent years, with the sharp increase of high-rise buildings in the big cities and small cities in our country,with great advantages, the anchor rope support was widely used for deep foundation pit project. The widely use of the anchor ropes brought great economic benefit for the engineering construction industry in our country,but plenty of anchor ropes which were buried under the ground brought many obstacles for further exploitation of underground space. So it is the urgent practical needs and social need for promoting the reclamation of anchor ropes. In the paper, according to the practical application situation of the hot melting recoverable anchor ropes with pressure dispersing type which were produced by NENGGONG Co.,Ltd and were used in Suzhou Yishan Lake project,the paper mainly included the contents as follows:1.The writer made detail discussion and introduction for the mechanism of action,mechanical characteristic, construction technology, recycle principle of the hot melting recoverable anchor rope with pressure dispersing type.2.According to the foundation pit support project in Suzhou Yishan Lake, the writer made the comparison and analysis between the recoverable anchor ropes and common anchor ropes in the design aspect and showed the advantages of the recoverable anchors from the aspects of economy,security and transformation.3.The writer made the site operation and test for the recoverable anchor ropes in the foundation pit support project in Suzhou Yishan Lake. According to the test of pull out capacity for the anchor ropes, the writer made the analysis and study for the carrying capacity situation and made the analysis and study for the displacement and anti-sliding ability under loading condition.4. By using the MIDAS-GTS finite element software,the writer made numerical simulation analysis for common anchor ropes and the hot melting recoverable anchorropes with pressure dispersing type. According to every construction process in the simulative foundation pit, the writer got the influence results from the two kinds of anchor ropes when they resisted the deformation of foundation pit.