Power transmission tower foundation structure suitable for areas without bedrock and construction method
A technology for basic structures and transmission towers, applied in basic structure engineering, wind power generation, construction, etc., can solve the problems of lateral deformation of the basic structure of transmission towers, inability to provide lateral deformation resistance, and poor resistance to lateral deformation. Achieve the effect of ensuring structural stability, increasing anti-sliding effect, and resisting lateral deformation
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Embodiment 1
[0050] refer to figure 1 and figure 2, in this embodiment, the basic structure of the transmission tower applicable to areas without bedrock includes: a receiving assembly, a pile foundation assembly, a core column 8 and a connecting cable 9; the receiving assembly includes a ring body, and the circumference of the ring body is provided A plurality of caps 1 for receiving transmission towers, the lower part of each cap is fixedly connected with a group of pile foundation components; The plane where the ring-shaped body of the receiving component is located; the core column 8 is perpendicular to the plane where the ring-shaped body of the receiving component is located, and the vertical projection of the core column is located in the middle of the ring of the vertical projection of the ring-shaped body of the receiving component; the connecting cable 9 is multiple One end of a plurality of connecting cables is respectively fixed to the upper part of the core column, and the o...
Embodiment 2
[0053] On the basis of Example 1, such as Figure 1 to Figure 10 As shown, this embodiment also involves the following design content.
[0054] The receiving component is in the shape of a ring, and four caps are evenly distributed in the circumferential direction, and the four caps are sequentially connected and fixed by the arc-shaped connecting beam 3 to form the annular body. It can adapt to the situation that the existing transmission tower has four tower feet, so that the basic structure can better undertake the gravity concentration point of the transmission tower. The number of caps can be adjusted according to the number of transmission tower feet, generally 4.
[0055] Such as image 3 A set of pile foundation components includes a plurality of vertical piles 21 and a plurality of inclined piles 22. The upper ends of the inclined piles are connected to the cap 4, and the lower ends are inclined away from the vertical piles. The clamping between each inclined pile a...
Embodiment 3
[0063] This embodiment introduces the construction method of the transmission tower foundation structure in Embodiment 2, which mainly involves the following steps:
[0064] Before construction, it is necessary to level the site, position and set out lines, connect water and electricity, install pile drivers, and then carry out the following construction operations:
[0065] S1, slotting the soil area on the connecting cable path;
[0066] S2, perform sinking operation on the lower half of the core column pipe pile, and then weld the pipe pile and the X-shaped pile to obtain the core pile, and set a mounting ring on the waist of the X-shaped pile; set multiple sleeves with grouting One end of the connecting cable of the pipe is respectively connected to the installation circumference of the X-shaped pile, and the X-shaped pile is continued to sink to the preset elevation;
[0067] S3, sinking each pile foundation component to a predetermined elevation;
[0068] S4, slotting ...
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