CN222362470U

CN222362470U - A single-pile variable-diameter rock-embedded interlocking pile

Info

Publication number: CN222362470U
Application number: CN202420949233.5U
Authority: CN
Inventors: 吴洁; 罗书维; 王磊; 张潇月; 陈静
Original assignee: Chengdu Second Construction Engineering Co ltd Of Cdceg
Current assignee: Chengdu Second Construction Engineering Co ltd Of Cdceg
Priority date: 2024-05-06
Filing date: 2024-05-06
Publication date: 2025-01-17
Anticipated expiration: 2034-05-06

Abstract

The utility model relates to the field of occluding piles and discloses a single-pile variable-diameter rock-socketed occluding pile which comprises a soil layer pile section and a rock pile section, wherein the soil layer pile section and the rock pile section are embedded in a rock layer, an inverted trapezoid cambered surface is arranged at the transition position of the soil layer pile section and the side surface of the rock pile section, the junction of the end surface of the rock pile section and the inverted trapezoid cambered surface is provided with a step surface, and the single-pile variable-diameter rock-socketed pile, the trapezoid transition surface of the soil layer pile section and a plurality of diameter changes of conical surfaces of the rock pile section provide enough rock biting points, so that the whole pile is more stable and potential safety hazards are reduced.

Description

Single pile reducing rock-socketed secant pile

Technical Field

The utility model relates to the field of occluding piles, in particular to a single-pile variable-diameter rock-socketed occluding pile.

Background

In actual construction, rock layers, karsts and the like with a certain depth which are not expected under soil layers are often encountered, if a full casing drilling machine is continuously used, drilling is difficult, and the construction progress can be greatly slowed down. Some construction units use rock-socketed equipment, such as rotary diggers, down-the-hole hammers, percussion drills, etc., to drive the work Cheng Jindu. Because the construction diameter of the rock-socketed equipment (namely the diameter of a rock-socketed drilling tool) is smaller than the diameter of a steel sleeve of the full-sleeve drilling machine, the drilling aperture of a rock section can be smaller than the standard design aperture of a soil layer section, the biting layer of the soil layer section always appears to meet engineering requirements after casting into a continuous biting pile, the biting layer of the rock section is often insufficient and even does not bite at all, the construction quality cannot be guaranteed, potential safety hazards exist, and the like are caused, and therefore the single-pile variable-diameter rock-socketed biting pile is provided.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a single-pile variable-diameter rock-socketed secant pile, which solves the problems.

(II) technical scheme

In order to achieve the purpose, the technical scheme is that the single-pile diameter-variable rock-socketed secant pile comprises a soil pile section and a rock pile section, wherein the soil pile section and the rock pile section are used for being embedded into a rock layer and a soil layer, an inverted trapezoid cambered surface is arranged at a junction of a transition part of the soil pile section and the side surface of the soil pile section, which corresponds to the rock layer and the soil layer, and a step surface is arranged at a junction of the end surface of the rock pile section and the inverted trapezoid cambered surface.

Preferably, the trapezoid cambered surface is composed of a trapezoid transition surface of the soil layer pile section and a conical surface of the rock upper pile section, the front inclination angle of the trapezoid transition surface of the soil layer pile section is the same as the inclination angle of the conical surface of the rock upper pile section, the trapezoid transition surface of the soil layer pile section is used for being inserted into an area of a soil layer, and the conical surface of the rock upper pile section is used for being inserted into an area of a rock layer.

Preferably, the trapezoid transition surface of the soil layer pile section is arranged at the position of the lower end of the soil layer pile section corresponding to the soil layer, and the conical surface of the rock upper pile section is arranged at the position of the upper end of the rock pile section corresponding to the rock layer.

Preferably, the rock pile section is provided with a rock large-diameter pile section at a position corresponding to the lower end of the conical surface of the rock pile section, and the diameter of the rock large-diameter pile section is the same as the maximum diameter of the tail end of the conical surface of the rock pile section.

Preferably, the step surface is formed by a rock large diameter pile section and the end of the rock pile section.

(III) beneficial effects

Compared with the prior art, the utility model provides the single-pile variable-diameter rock-socketed occluding pile, which has the following beneficial effects:

1. The single-pile reducing rock-socketed secant pile, the trapezoid transition surface of the soil layer pile section and the multiple diameter changes of the conical surface of the rock upper pile section provide enough rock biting points, so that the whole pile is more stable, and potential safety hazards are reduced.

2. The diameter of the soil layer pile section, the diameter of the rock upper pile section conical surface and the diameter of the rock large-diameter pile section are larger than those of the rock pile section, and the pile diameter of the rock pile section is equal to that of the pile for design, so that the rock pile section is ensured to have qualified occlusion thickness, the construction quality of the whole occlusion pile is ensured, and the center distance of the designed occlusion pile is unchanged.

Drawings

FIG. 1 is a schematic view of a single pile diameter-variable rock-socketed bite pile;

FIG. 2 is a schematic top view of a single pile diameter-variable rock-socketed bite pile;

fig. 3 is a side view of a single pile variable diameter rock-fill bite pile.

In the figure, 1, a soil layer pile section, 2, a soil layer pile section trapezoid transition surface, 3, a rock upper pile section conical surface, 4, a rock large-diameter pile section, 5, a rock pile section, 6, a rock layer and 7, and a soil layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a single-pile diameter-variable rock-socketed pile comprises a soil layer pile section 1 and a rock pile section 5, wherein the soil layer pile section 1 and the soil layer 7 are embedded in the rock layer 6, an inverted trapezoid cambered surface is arranged at the junction of the soil layer pile section 1 and the soil layer 7 corresponding to the rock layer 6 at the transition part of the side surface of the soil layer pile section 5, and a step surface is arranged at the junction of the end surface of the rock pile section 5 and the inverted trapezoid cambered surface.

Further, the trapezoid cambered surface is composed of a soil layer pile section trapezoid transition surface 2 and a rock upper pile section conical surface 3, the front inclination angle of the soil layer pile section trapezoid transition surface 2 is the same as the inclination angle of the rock upper pile section conical surface 3, the soil layer pile section trapezoid transition surface 2 is used for being inserted into a region of a soil layer 7, and the rock upper pile section conical surface 3 is used for being inserted into a region of a rock layer 6.

Further, the trapezoid transition surface 2 of the soil layer pile section is arranged at the position of the lower end of the soil layer pile section 1 corresponding to the soil layer 7, and the conical surface 3 of the rock upper pile section is arranged at the position of the upper end of the rock pile section 5 corresponding to the rock layer 6.

Further, a rock large-diameter pile section 4 is arranged on the rock pile section 5 at a position corresponding to the lower end of the conical surface 3 of the rock upper pile section, and the diameter of the rock large-diameter pile section 4 is the same as the maximum diameter of the tail end of the conical surface 3 of the rock upper pile section.

Further, a stepped surface is formed by the ends of the rock large-diameter pile section 4 and the rock pile section 5.

When the geological conditions of soil and rock loading are met, firstly, a guide wall is manufactured on the ground, then, a special steel pipe with the diameter being 100-200 mm is adopted, a sleeve drill is used for carrying out a series of operations such as sleeve pipe, sinking pipe and the like on soil layer sections and rock upper sections until reaching 2000-10000 mm of a rock layer, and soil and broken stone taking operations are carried out. After the concrete is taken out, rock embedding is carried out by replacing rock embedding tools (such as rotary digging equipment, down-hole hammer, impact drill and the like), after the rock embedding reaches the designed depth and the aperture, stones in pile holes of the lower section pile 3 of the rock are removed, steel reinforcement cages (or directly poured concrete) are placed in the rock embedding tools, the concrete is poured, steel sleeves are pulled out, the next construction tool (such as rotary digging equipment, down-hole hammer, impact drill and the like) for the next occlusion pile is carried out, after the rock embedding reaches the designed depth and the aperture, stones in pile holes of 5 are removed, the steel reinforcement cages (or directly poured concrete) are placed in the rock embedding tools, the steel sleeves are pulled out, and the next construction of the occlusion pile is carried out.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a single stake reducing rock-socketed secant pile, its characterized in that, including being used for embedding rock layer (6) and soil horizon (7) inside soil horizon pile section (1) and rock pile section (5), the transition department of soil horizon pile section (1) and rock pile section (5) side corresponds the junction of rock layer (6) and soil horizon (7) and is provided with the trapezoid cambered surface of falling, and the terminal surface of rock pile section (5) is provided with the step face with the junction of trapezoid cambered surface of falling.

2. The single pile diameter-changing rock-socketed secant pile according to claim 1, wherein the trapezoid cambered surface consists of a soil pile section trapezoid transition surface (2) and a rock upper pile section conical surface (3), the front inclination angle of the soil pile section trapezoid transition surface (2) is the same as the inclination angle of the rock upper pile section conical surface (3), the soil pile section trapezoid transition surface (2) is used for being inserted into a soil layer (7) area, and the rock upper pile section conical surface (3) is used for being inserted into a rock layer (6) area.

3. The single-pile variable-diameter rock-socketed secant pile according to claim 2, wherein the trapezoid transition surface (2) of the soil pile section is arranged at the position corresponding to the soil layer (7) at the lower end of the soil pile section (1), and the conical surface (3) of the rock upper pile section is arranged at the position corresponding to the rock layer (6) at the upper end of the rock pile section (5).

4. The single pile diameter-changing rock-socketed secant pile according to claim 2, wherein a rock large-diameter pile section (4) is arranged on the rock pile section (5) at a position corresponding to the lower end of the conical surface (3) of the rock upper pile section, and the diameter of the rock large-diameter pile section (4) is the same as the maximum diameter of the tail end of the conical surface (3) of the rock upper pile section.

5. A single pile reducing rock-socketed pile according to claim 4, characterised in that the step surface is formed by the ends of the rock large diameter pile section (4) and the rock pile section (5).