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. 1) CONSOLIDATION role in permeability, groutability good sand and gravel soil, slurry penetrate the soil pile end at a certain distance less pressure to form a structural, high strength stones body, increasing the bearing area of ??the pile tip, thereby improving the bearing capacity of the pile. 2) compaction infilling presence bored hole bottom sediment, because of its strength is very low, the slurry can easily destroy its structure, equivalent to form a cavity grouting. After excavation by short pile grouting observation plane position grouting effect and which has nothing to do Pingyu post grouting apparatus main structural inspection, as long as a grouting device works, cement slurry to spread to the weak parts. When grouting construction Guancheng body structure testing, post grouting apparatus generally symmetrical arrangement of 2 to 4, the basic guarantee slurry spread evenly to soil from the pile tip. 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. Shall meet the following requirements: 1) After grouting duct should be used in the steel, and the steel cage should stiffening ribs lashing or welding. 2) Number of post grouting and grouting pipe valve should be set according to the size of the pile diameter. For a diameter of not more than 1200mm pile, should symmetrically arranged along the circumference of the reinforcement cage 2; for diameter greater than 1200mm and not more than 2500mm pile, should symmetrically arranged three. 3) For pile length exceeds 15m and the increase carrying capacity requirements higher, should adopt the pile tip and pile grouting side duplex. Pile lateral grouting pipe should be set to the number of valves integrated stratigraphy, pile length and other factors to determine the bearing capacity growth requirements Erqi main structure detection, from the pile at the end of more than 5 ~ 15m, 8m less top of the pile, every 6 ~ 12m set a pile grouting side valve, when there is coarse grained soil, grouting valve should be provided at the lower portion of the coarse soil, the dry-holing pouring coarse soil should be located in the middle. 4) For non-through long reinforced piles, the lower part of the reinforcement cage shall be not less than two through the end of the long reinforcement grouting pipe and other components. 5) reinforcement cage sinking in the end should not be suspended, the next may not hit the cage cage blocked pier cage, twisted cage. Grouting valve should have the following properties: 1) grouting valve shall withstand hydrostatic pressure above 1MPa; grouting valve outer protective layer should be resistant to scraping gravel and other hard objects to hit without causing damage to the valve. 2) grouting should have a check valve function. Pingyu main structure of the main structure of the detection _ _ malpractice detected by monitoring stations detect malpractice 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!