Positioning device for inclined steel pipe support slope and construction method

Abstract

The invention discloses a positioning device of an inclined steel pipe support slope. The positioning device comprises a guide hole device body, fixed seats, a supporting piece and a reinforcing assembly, the reinforcing assembly comprises a fastening piece and a reinforcing beam, the fastening piece is a common anchor rod or a grouting anchor rod, the reinforcing beam is a long-strip-shaped plate-shaped body component, the whole guide hole device body is of a wedge-shaped structure, a plurality of fixed seats are arranged at the bottom of the hole guiding device body, a guide hole is further formed in the middle of the guide hole device body. According to the positioning device of the inclined steel pipe support slope, a steel sheet pile driver is adopted to obliquely insert the supporting piece into a soil body according to the slope of a slope, then slope excavation is carried out on a slope body with a steep dip angle, slope protection is carried out on the slope body with the steep dip angle through the supporting piece, and therefore the supporting effect is achieved; and meanwhile, by combining the stability of the slope body and the excavation depth of a foundation pit, the anchor rod and the supporting piece can be additionally arranged at proper positions for combined supporting, and therefore high-stability slope protection is achieved, and the problems for a shallow foundation pit, a land red line is close, undisturbed soil sloping cannot be met, the sloping dip angle is extremely steep, and pile-in-row and pile-anchor supporting cost is high can be solved.

Description

technical field [0001] The invention relates to a positioning device and a construction method, in particular to a positioning device and a construction method for slopes supported by oblique steel pipes, and belongs to the technical field of foundation pit engineering. Background technique [0002] Generally speaking, slope support refers to the support, reinforcement and protection measures taken on the slope to ensure the safety of the slope and its environment. [0003] In traditional foundation pit support, support forms such as grading, row of piles, underground diaphragm wall, cement retaining wall, soil nail wall, and reinforced concrete row of piles are often used. During the excavation of shallow foundation pits, grading and other forms are often used. However, when the red line of the land is too close to meet the slope of the undisturbed soil, the inclination angle of the grading is extremely steep. higher cost [0004] At present, it is rare to use steel pipes...

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Problems solved by technology

[0006] Aiming at the many defects and deficiencies in the above-mentioned background technology, the present invention improves and innovates it, and aims to provide a construction method for oblique steel pipe support slopes, so as to solve the problem that the shallow foundation pit is close to the red line and cannot meet the requirements of undisturbed soil. Slopes, grading slopes are extremely steep, and the cost of pile row and pile anchor support is high, so as to reduce support costs, ensure construction safety, reduce the risk of foundation pit collapse, and reduce the landslide risk of high slope support. Restoration of late vegetation

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