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搅拌桩、静压桩(国外英文资料)
搅拌桩、静压桩(国外英文资料)
Measures for the quality control of cement mixing pile construction
As is known to all, during the construction of soft clay foundation, the cement mixing pile construction is one of the common processing method, its main features are: a reasonable time limit, low pressure during the construction of the operation, safe and reliable, less pollution, no vibration, no noise, and buildings with no adverse effects on the surrounding environment. How to increase the capacity of soft soil foundation and reduce the compressive quantity of soft soil foundation is the key to controlling the construction quality of cement mixing pile.
Quality control of preparation before construction
Construction preparation and ground level
The convenient way to enter the construction machinery shall be repaired;
1.1.2 power supply facilities shall be complete. Diesel generators shall be provided in the construction site without external power source.
1.1.3 find out the obstacles in the construction area. There are large stones and underground pipes, etc. All obstacles should be cleared or established in advance to avoid and ensure safe production;
1.1.4 level is flat. In the area where the pile is being prepared, the bulldozer will be made first with the bulldozer, then the coarse sand cushion will be refilled, then the ground plane will be flat. Where conditions are available, the roller can be pressed for 1 ~ 2 times.
Construction lofting
First using total station (or transit) accurately release starting pile construction paragraph and line position, and design requirements of steel pile spacing with sticks to identify the pile location within the scope of construction (general according to the regular triangle arrangement).
Quality control of raw material
The quality of 1.3.1 cement (curing agent) is the key, and the variety and quality of cement used should meet the design and specification requirements. Before the cement approach, it is necessary to sample the stability
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