Positioning device for inclined steel pipe support slope and construction method

A technology of positioning device and construction method, which is applied in excavation, infrastructure engineering, roads, etc., can solve the problems of unsatisfactory soil grading, close to the red line of shallow foundation pit, and high cost of pile and anchor support, and achieves the effect of support. The effect of safety and stability, reducing landslide risk and low manufacturing cost

Inactive Publication Date: 2021-06-15
YUNNAN JIANTOU FOUND ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Positioning device for inclined steel pipe support slope and construction method
  • Positioning device for inclined steel pipe support slope and construction method
  • Positioning device for inclined steel pipe support slope and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] The construction method of a kind of oblique steel pipe supporting slope of the above-mentioned design structure needs to be installed as a backup before it is used.

[0095] First of all, the worker positions the line according to the position where the support member 3 is inserted, and then the worker aligns the center position of the bottom end of the hole 11 of the lead hole device with the position of the line point, and then, and then, passes through the circle Steel or steel bars pass through the fixing hole 21, insert one end of the round steel or steel bar into the soil body 5, and bend the upper part of the round steel or the uninserted end of the steel bar, and press the fixed seat 2 through the bent part, so that The main body 1 of the hole introduction device is fixed on the ground, thereby completing the installation, and can be used after the installation is completed;

[0096] When in use, first use the mechanical arm of the hydraulic vibration pile driv...

Embodiment 2

[0101] Embodiment 2 is the same as Embodiment 1, the only difference is that if the layered excavation reaches a certain depth, when the support of the support member 3 cannot maintain the stability of the foundation pit, according to the depth of the foundation pit and the stability of the slope, in the adjacent Between the support 3 and the support 3, several fasteners 41 are sequentially implanted into the slope, so that the roots of the fasteners 41 pass through the sliding surface and go deep into the formation. The exposed ends of the fasteners 41 are fixed so that the reinforcement beam 42 is pressed against the wall of the support member 3 to form a reinforcement system and achieve a reinforcement effect.

[0102] In addition, if the foundation pit is shallow, the stability of the slope body can be maintained under the support of the support member 3 , and there is no need to implant the reinforcement component 4 on the slope body.

[0103] The specific installation an...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D17/04E02D5/46E02D7/18E02D13/04E01F9/619E01F9/658
CPCE02D17/20E02D17/04E02D17/207E02D5/46E02D7/18E02D13/04E01F9/619E01F9/658E02D2600/30
Inventor 高春雷丁红岗赵贵海李相龙王鹏陈志军张关钦寸春发
Owner YUNNAN JIANTOU FOUND ENG CO LTD
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