Digging and soil lifting device for plateau mountain foundation pit digging construction equipment

Abstract

The invention provides a digging and soil lifting device for plateau mountain foundation pit digging construction equipment. The digging and soil lifting device comprises a support framework, a guide drill rod, a digging mechanism and a soil lifting mechanism, wherein a support frame is arranged on the support framework; two slide passage frames are vertically arranged on the support frame; the upper ends of the two slide passage frames are provided with an ascending and descending support frame; and the outer surface of the guide drill rod is symmetrically provided with two guide rails in the axial direction. The digging and soil lifting device has the advantages that the design is reasonable; the automation degree is high; the work intensity of workers is sufficiently reduced; the safety and reliability degree is high; the work efficiency for digging pile holes is improved; according to the basic line engineering pile hole digging mode, the study on a special basic foundation pit digging mechanical operation machine tool of plateau mountain power transmission lines is developed, so that the technical requirements of line construction hole pile foundation digging can be met; the construction efficiency and the engineering construction mechanization degree of alternating current power transmission lines are improved; and the hole pile digging foundation construction technical level is promoted to be further improved.

Description

technical field [0001] The invention belongs to the technical field of construction in the electric power industry, and in particular relates to a device for digging and lifting soil for foundation pit excavation construction equipment in plateau and mountainous areas. Background technique [0002] Excavated pile foundation is a foundation type commonly used in transmission line engineering. Compared with the large excavation foundation form, it has significant advantages in environmental protection, concrete maintenance, reduction of backfill operations, and full use of undisturbed soil properties. In recent years, it has been used in power transmission It is more and more widely used in line engineering. [0003] The traditional method of manually excavating foundation pits is a type of pile that uses manual excavation of pile holes, places steel cages in the holes, and pours concrete. Its advantages are: [0004] (1) The manual excavation pile construction equipment is s...

AI Technical Summary

Problems solved by technology

[0011] (1) Poor underground operating conditions, harsh environment, and high labor intensity;

[0012] (2) The safety is poor, and personnel work up and down in the hole, which is prone to casualties;

[0013] (3) The construction speed of single pile is relatively slow;

[0014] (4), the amount of concrete pouring is large

[0015] Of course, manual excavation piles are only limited to the soil formations in the plains. For the Sichuan-Tibet Interconnection Project with high altitude, harsh climate and terrain, and short construction time, conventional excavation equipment and construction methods cannot meet the construction needs.

[0016] The Sichuan-Tibet interconnection project starts from the Sichuan 500kV rural-urban substation, passes through the 500kV Batang substation, the Tibet 500kV Qamdo substation, and ends at the 220kV Bangda substation and Yulong substation. A new 500kV line is 1,036 kilometers long. The newly built 220 kV line is 505 km long and the 110 kV double-circuit line on the same tower is 2 × 9 km long. Most of the areas along the project line are in low pressure, anoxic, severe cold, strong wind, strong radiation and other areas, and the natural environment and climate conditions are extremely It is harsh and human construction is limited; at the same time, the project is located in the "Three Rivers" fault zone with the most complex geological structure and the widest distribution of geological disasters in the world. Functional role is difficult to play, construction is extremely difficult

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