Foundation treatment method
A foundation treatment and stockyard technology, applied in the direction of basic structure engineering, soil protection, construction, etc., can solve the problems of structural influence, foundation settlement sensitivity, increase additional internal force, etc., to reduce settlement, ensure reinforcement effect, and ensure stability Effect
Active Publication Date: 2011-06-15
重庆赛迪施工图审查咨询有限公司
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Problems solved by technology
The structure of the raw material warehouse is a large-span reticulated shell structure, which is a high-order hyperstatically indeterminate structure, which is sensitive to the foundation settlement. The foundation settlement will add additional internal force to the grid members and have an adverse effect on the structure.
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[0012] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0013] A large closed structure-raw material warehouse is set up on the upper part of the ore stockyard. The structure is 595m long, with two spans of 100m each, and a construction area of 119,000m 2 , the height is about 45m, there is a sinter storage yard in the middle of the raw material warehouse, and the bulk density of the material is 2.5t / m 3 , the stacking width is about 80m wide, and the stacking height is 13m.
[0014] The implementation is divided into 6 steps, the specific methods and steps are as follows:
[0015] (1). Passive soil dynamic compaction area 1 on both sides of the stockyard is subjected to dynamic compaction for the passive soil area;
[0016] (2). Sand and gravel piles 4 are constructed in the stockyard area, and CFG piles 5 are constructed under the track 8 of the stacker-reclaimer;
[0017] (3). Driving PHC piles...
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The invention belongs to the technical field of fixed buildings, discloses a foundation treatment method, and in particular relates to a foundation treatment method for a large-sized stock yard. The method comprises the following steps: forcibly ramming passive soil areas on two sides of the stock yard; constructing sand-gravel piles in the stock yard areas, and constructing CFG piles under a stacker-reclaimer track; hitting PHC piles and TSC piles; protecting constructed high-pressure rotary spray piles in the surrounding areas of the PHC piles and the TSC piles of the side pillar foundation; pouring a pull beam and a pillar foundation integrally as required; and backfilling gravel pad layers layer by layer, and paving a geogrid in the middle of the pad layer. The invention provides the jointed foundation treatment method consisting of the sand-gravel piles, forcible ramming, the high-pressure rotary spray piles, the geogrid, the gravel pad layers, the PHC piles, the TSC piles and the pull beam for the project of building a closed large-sized ore storage plant-raw material storage on the complex foundation; and the method saves the project investment, and has advanced and reliable technology.
Description
technical field [0001] The invention belongs to the technical field of fixed buildings and discloses a foundation treatment method, in particular a foundation treatment method for a large raw material field. Background technique [0002] The height of stockpiling in modern large-scale raw material yards usually exceeds 10m, and the maximum load on the floor of the stockyard is 15t / m 2 ~20t / m 2 , when the stacked material is ore, its maximum stacked load will exceed 30t / m 2 , then the foundation soil will be difficult to meet the requirements. The safest way to solve the foundation problem is to set up a reinforced concrete floor on which ores are stacked, the floor is supported by reinforced concrete piles, and the load is transmitted to the lower hard soil layer by the piles, but this method requires a large engineering investment . Another common method is to use foundation treatment to solve the problem. Since the stockyard does not have high requirements for settleme...
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IPC IPC(8): E02D3/00
Inventor 薛尚铃马鹰刘京安孔垂烛雷朝霞胡朝晖王子全唐建设
Owner 重庆赛迪施工图审查咨询有限公司