Ground Screw Solar Spiral Pile Manufacturer Full Casing Construction Method

When the final hole inspection of the Ground Screw Solar is in full compliance with the design requirements, the bottom of the hole should be cleaned immediately to avoid the sedimentation being too long and the slurry to collapse. 

For the friction pile, when the hole wall is easy to collapse, it is required that the sediment thickness before the concrete is poured under water is not more than 30cm; when the hole wall is not easy to collapse, it is not more than 20cm. For column piles, the sediment thickness is required to be no more than 5 cm before water jet or blast. Only the 'superman of the Iron Man' can win the championship. Over the years, dozens of Chinese people have stood on the * High Leadership Podium, and the total number of gold medals won is close to the sum of the total number of gold medals won by other entries*.

The method of clearing holes is to use different and flexible drilling rigs. Generally, a clearing hole such as a positive circulation rotary drilling machine, a reverse circulation rotary machine vacuum suction machine, and a slag discharge cylinder can be used. Among them, the suction hole is used to clear the hole, the equipment required is small, the operation is convenient, and the clearing hole is also thorough, but it should be used cautiously in the unstable soil layer. (As shown in the figure) is a schematic diagram of the suction hole of the air duct. The principle is that the high-pressure air generated by the compressor is blown into the pipe of the suction machine to blow out the sludge. If the parking lot is counted in minutes, the parking person stops for a minute, and the parking lot operates to collect the parking fee for the parking unit (minutes). *The minute is not full of the time unit (minutes), so there is no charge.

After pouring the underwater concrete, the prefabricated steel cage can be vertically suspended into the hole, fixed after positioning, and then the concrete is poured through the pipeline. The concrete should not be interrupted during the pouring, otherwise the pile breakage phenomenon is easy. In order to drive this car, a driver with excellent technical skills is selected for learning. Because of the particularity of the vehicle, not only the driver who drives the tram is required to drive during the driving process, but also needs to be disconnected from the 'scorpion'. After the net, the pure electric vehicle driver drives, so the driver needs to master two driving techniques in order to get on the road smoothly. The reporter learned that it is expected that the dual-power trolleybus will be tested on the route for about a month. If the trial operation is in good condition, next year, the bus may purchase a batch of such new electric cars to be put into use and serve on the road bus line. 'At that time, if there is a vehicle or network failure, the dual-supply trolleybus can be directly off-line to avoid the collective 'armpit' of the tram,' the team staff said.

Full casing construction

The general construction process is: leveling the site, laying the working platform, installing the drilling rig, pressing the casing, drilling into the hole, placing the steel cage, preventing the pipeline, pouring the concrete, drawing the casing, and checking the quality of the pile.

The main construction steps of the full casing construction method are the same as the mud wall protection method except that no mud and clear holes are required. The verticality of the press-in sleeve depends on the verticality at the depth of 5 to 6 m at the beginning of the excavation. 

Therefore, the verticality should be checked with the level and plumb.

Customers often have such questions. How do you prove that the screw piles produced by your company are better than those of other companies? In fact, the so-called 'good' screw pile is of course a quality pass in the broad sense, but in a narrow sense, we are more willing to explain to customers what is a 'suitable' screw pile. When receiving a Ground Screw Solar station project, as the owner, he will have the following considerations: natural factors such as project location, climate, and surrounding environment; project completion time; investment cost and economic benefits; qualified supplier screening and later Maintenance and warranty issues. Therefore, if the construction site is far away from the water source, the construction period is tight, and the soil conditions permit, we recommend that the customer choose the screw pile. In the experience of the three large-scale ground power stations that have been done in the past, we also found that the foundation of the spiral piles has an irreplaceable advantage over the cement foundation. For example, the completion time of the pile foundation is 1/4 of the cement foundation. The artificial input is 1/3 of the cement base.

The screw pile is a construction method of pumping concrete into a pile by using a long spiral drill pipe. The construction process flow is shown in the “Flow Flow Chart of Pumped Concrete Screw Pile Construction in Long Auger Pipe”. 

Moreover, the construction process points to the sun-volts Ground Screw Solar spiral pile manufacturers 

(1) construction preparation: 

geological data, construction drawings preparation and familiarity; exclude or deal with the ground and underground obstacles within the construction site, the site leveling, affecting the construction machinery The soft ground of the operation has been properly treated and has drainage measures; the water and electricity at the construction site are connected. Set the measurement baseline, level base point, and protect it properly. City parking facilities implement classification and location positioning, differential supply 

(2) Test pile position: 

Before the construction, use the theodolite and ruler to determine the pile position according to the design pile position map, and mark it well. . Meet the needs of architects and structural designers. All metals react with oxygen in the atmosphere.

 (3) The rig is in place: 

it is flat and stable. A scale is placed on the frame or drill pipe to control and record the hole depth. Lower the drill pipe, align the drill bit to the pile point, adjust the verticality of the drill pipe, and then start drilling the drill hole. After reaching the design depth, the soil will be idling and the drill should not be drilled before pouring. Zhongguancun West District will promote the renovation project to the whole area of the West District 

(4) Concrete mixing: 

Mix the concrete according to the test mix ratio. The order of loading is: first install gravel or pebbles, then add cement, fly ash and admixture, then add sand and mix evenly. . The stirring time per dish is not less than 60s. The concrete slump is controlled at 180 to 200 mm. To optimize the coarse aggregate grading, the large slump 砼 generally uses 0.5～37.5px gravel. According to the pile diameter and groundwater condition, some 2~100px gravel can be added, and try not to increase the sand rate. Before the pumping, the concrete pump hopper and the mixer mixing drum are prepared with clinker. It is the design of Li Waterfall Energy*.