Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, is one of the qualification place in Henan Province since the first detection through examination of business. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing and inspection center of the main structure, glass curtain wall testing, detection of roads and bridges, air defense projects to detect a number of test qualification and testing laboratories. Soil Foundation Exploration spacing shall meet the following requirements: (1) an end bearing pile appropriate for 12 ~ 24m, adjacent exploration hole to expose the layers of surface elevation of holding force should be controlled to 1 ~ 2m; (2) of the friction pile appropriate for 20 ~ 35m main structure testing services, local level condition is complex, affecting the design of the pile or special requirements of the main building structure inspection, survey points should be properly encrypted; (3) the complexity of a column with one pile foundation engineering, exploration should be set for each column point. Depth exploration holes shall meet the following requirements: (1) general exploration hole depth is expected to pile length should reach the following 3 ~ 5d (d is the pile diameter), and not less than 3m; large diameter pile, not less than 5m. (2) controlling the exploration hole depth should meet substratum checking requirements; checking for required pile settlement, it should be more than the depth of ground deformation calculation. (3) Deep Drilling is expected to encounter weak layer, should be deepened; in the expected depth of the exploration holes encountered rock solid stable, can be appropriately reduced. (4) pile, is expected to be drilled into the rock below the surface inlay 3 ~ 5d, and through caverns, fractured zone, to reach stable ground. (5) There may be a variety of pile length scheme shall be determined by the longest pile program. Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, is one of the qualification place in Henan Province since the first detection through examination of business. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing, glass curtain wall testing, roads and bridges detection, detection of a number of civil air defense projects testing qualification and testing laboratories. According to the foundation on the complexity, size and functional characteristics of the building and because the building foundation problems may cause damage or affect the extent of normal use, "Building Foundation Design Code" (GB50007-2002) The foundation design is divided into A, B, C three design levels, design should be used depending on the circumstances. Class C is the site where ground conditions and simple, uniform load distribution of seven and seven of the following general civil and industrial buildings, light building secondary. Class was an important industrial and civil buildings, high-rise buildings over 30 floors, complex shape, layers differ by more than 10 layers of high and low fused buildings, grounds and foundation conditions of general building complex, located in the complex geology the second floor and the second floor above the basement excavation conditions and soft soil areas. So most of pile foundation design are B grade. Construction of the main structure detection, detection of the main structure, Henan malpractice malpractice detected by Henan Construction Engineering Inspection Limited. Henan malpractice Construction Engineering Testing Co., Ltd. (www.hnrsjc.cn) (www.rsgcjc.com) strong, credible, in Zhengzhou, Henan's construction industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead malpractice detection and you hand into the brilliant, for a better future!