Into a composite foundation pile foundation engin

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Composite foundation pile into the engineering application

Total requirements, to achieve 201225kPa. In order to not meet the requirements of the design capacity of composite foundation pile into effect after the monitoring, the project developed a detailed settlement observation requirements. Settlement observations show that the cap structure of the project after the main settlement in the l9 ~ 2008 年 l0 months Tang Bozhong composite foundation pile into the engineering application of 2325mm between the differential settlement of 1.6% in the time of completion of the completion maximum settlement is 28mm. Calculated in accordance with the estimated settlement value of the building observed the final settlement value of the calculated value does not exceed the settlement. Make pile remediation programs with comparative analysis of the economy, cost of composite foundation pile than make up 38% of investment cost savings, shorten the construction period, and the use of technology projects fully meet the reliability requirements. 4 Conclusion construction in full before the piles are not required to do test pile by static load test cases, reach the carrying capacity of pile foundation design requirements are more common. Under normal circumstances, make piles is the most common remedies. This paper will be taken in soft soil area of composite foundation pile into the remedial measures on the reinforcement of pile bearing capacity is not enough done a try, made some useful conclusions. (1) The engineering practice shows that when the bearing capacity of pile foundation design requirements, it will pile into the pile to play the role of the composite foundation bearing is a reasonable design concept and approach. With the usual complement of post treatment by comparison, the conversion of composite foundation with more obvious technical and economic benefits. (2) into the design of composite foundation, if the capacity still can not meet the requirements, should give priority to expand the base area or improve the bearing capacity of pile reinforcement to compensate for lack of pile bearing capacity approach. This means more than make up the pile from the investment period has certain advantages. (3) the thickness of the pile cushion shall be determined considering the settlement of piles, pile capacity and pile each play level. When the pile of work for the end bearing type traits pile, cushion thickness should be whichever is greater, allowing the pile-up prickly cushion in order to make the bearing capacity of soil between piles can give full play; when the working properties of single pile the friction-type pile, whichever is less cushion thickness value, the pile through the pile bearing stratum of the piercing deformation, so that the bearing capacity of soil between piles into full play. (4) As the complexity of geotechnical engineering and uncertainty, combined with a strong practical foundation treatment, various calculations to determine the parameters should also be based around the experience of selection, can not be generalized. References: [1] JGJ94-2002, construction of foundation treatment specifications [S]. [2] Lin Yuan. Geotechnical Control Manual [M]. Shenyang: Liaoning Science and Technology Press, 1995. [3] Xia Linong. WANG Xing-hua. He made a spring and a compound based on the existing pile foundation design [A]. Theory and Practice of Foundation Treatment Progress [c】. Hefei: Hefei University Press, 2005. China's civil energy standard system has been formed recently editor from the Ministry of Housing and Urban noted that energy-saving standard system of civil construction has been basically formed. From the existing residential building energy-saving heating, expansion to all existing residential buildings and public buildings energy saving, exterior insulation from the building construction, expansion to the building energy conservation project quality inspection, testing, evaluation, energy statistics, maintenance and operation management, energy savings from the traditional, extended to solar energy, geothermal energy, wind energy and biomass and other renewable energy use, the basic areas to achieve comprehensive coverage of civil construction. Ministry of Housing and Urban responsible person, from the 80 years since the last century, China began to establish civil corresponding building energy efficiency standards. In 1986 China issued its first Energy conservation design standard, that is \energy efficiency design standards. \In recent years, the Ministry of Housing and Urban planning, standards, policies, technology and adopt comprehensive measures, has approved the release of the \(draft)), and dozens of important national standards and industry standards. Building energy efficiency standards to guide the design of related units, construction units of the main criteria in accordance with the corresponding activities in the building, some of which related to the mandatory provisions to regulate the construction units, design units and construction units to enforce energy efficiency standards. Building energy efficiency standards including construction design, construction, inspection, operation and so the whole process of a comprehensive energy conservation to ensure the building can actually implemented. (Zheng J
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