Research On Bearing Properties Of Stake In Based Rock Of The Eastern Part Of Jilin

Pile foundation are widely used in construction projects in various fields. Is an important part of the construction projects of high-rise building, along with increased in size, structure layer complex and underground space development and utilization, pile foundation is many built their first or will choose structures of the foundation forms. A vast complex geological conditions in China, the geotechnical conditions, foundation and structure design, the pile soil system interaction factors outside, the construction also has high pile of poet. Therefore construction enterprises to survey, design and research institutes in the departments of pile foundation construction technique and construction method launched a lot of exploration and research and different kinds of pile type and the construction methods arises at the historic moment. In jilin carrier pile is a kind of rising in recent years in the construction of pile type, already consumed building rubbish, protect the environment and save the raw material, cut down engineering cost, shorten the construction period, also have higher bearing capacity and safety performance, and has significant social benefits and economic benefits.This article through the carrier in eastern jilin bedrock working through theoretical analysis, the pile soil pile on the carrier and the static load test reinforced mechanism of carrier means eastern jilin pile in the research on the application of bedrock, using theoretical analysis of the data and has engineering test data, combined with engineering experience data are given under the condition of different strata reinforcement, eventually determine load-bearing properties in different soil conditions reinforce the bearing capacity of pile reasonable application carrier estimating way.First, fully weathered metamorphic tuff as strengthening the soil, in the region can take fully weathered bedrock on soil test to determine, through the look-up table after equivalent of calculating the area of method to estimate the single pile bearing capacity. The strongly weathered metamorphic tuff as strengthening the soil, should be based on the strength of pile body and bedrock strength are preliminary compressive capacity of single pile design value estimation. Secondly, the carrier pile as antioxidant, can according to pull out when the pile foundation construction technical specification for dry operation drilled pile soil pile reinforcement corresponding carrier 5.3.5.1 corresponding standard check side friction, press rock-socketed section is estimated 0.5 m, the single pile bearing capacity of resistance characteristic value of pulling.Finally, when the carrier by horizontal bearing capacity of pile, the stress condition and same, more cast-in-place pile pile increased 5%～10%.