Deep foundation pit dewatering environment-friendly and energy-saving construction process
It is a technology of environmental protection, energy saving and construction technology, which is applied in the fields of infrastructure engineering, soil protection, construction, etc. It can solve the problems of groundwater treatment and low utilization rate of groundwater resources, and achieve construction safety, good energy saving and environmental protection effects, and high treatment efficiency. Effect
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[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0035] refer to figure 1 , is a deep foundation pit dewatering environmental protection and energy-saving construction technology disclosed by the present invention, comprising the following steps:
[0036] S1, measuring and setting out, the staff will measure the groundwater around the foundation pit to be excavated and mark the relevant construction location;
[0037] S2. For the construction of the water-stop curtain, after leveling the site, the staff mark the pile position of the high-pressure rotary spraying pile, then start the pile machine and use the double pipe rotary spraying method for construction. The pile diameter determines the construction parameters such as rotary speed of rotary spraying, drilling pipe lifting speed, grouting pressure, mud flow, nozzle diameter, etc. The hole position deviation is not greater than 50mm, and the verticality...
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