CN210827452U

CN210827452U - Karst cavity area plain concrete pile becomes stake device

Info

Publication number: CN210827452U
Application number: CN201921261857.3U
Authority: CN
Inventors: 刘延昭; 潘晓; 姚博; 张智; 易勤; 田凯; 王超; 朱杭新; 陈裕森
Original assignee: Zhejiang Communications Construction Group Co Ltd
Current assignee: Zhejiang Communications Construction Group Co Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-06-23
Anticipated expiration: 2029-08-06

Abstract

The utility model provides a karst cavity district plain concrete pile becomes stake device, protect a section of thick bamboo and measure the floating rod including the steel, the steel protects a section of thick bamboo and establishes the outside that the section of thick bamboo was protected to plastics, plastics protect a section of thick bamboo and be equipped with the folded piece, measure the floating rod fixed mounting and protect a section of thick bamboo in plastics, through the setting of a steel section of thick bamboo, the concrete material of being convenient for protects a section of thick bamboo shaping in the steel, avoid the loss of initial set concrete, the setting of protecting a section of thick bamboo through the plastics that is equipped with the folded piece, can prevent to protect a section of thick bamboo at the steel and remove the back concrete pile and have the clearance between the hole of construction.

Description

Karst cavity area plain concrete pile becomes stake device

Technical Field

The utility model relates to a geotechnical engineering research field, concretely relates to plain concrete pile stake becomes stake device in karst cavity district.

Background

The drilling secant pile is a common deep foundation pit supporting structure, and a wall body is formed by secant of a plain concrete pile and a reinforced concrete pile, so that the water stopping and soil retaining effects are jointly realized, and the drilling secant pile has the advantages of high rigidity and small deformation. During construction, plain concrete piles are constructed at intervals, after concrete of the plain concrete piles is finally set, a drilling machine is used for cutting concrete of the intersecting parts of the plain concrete piles, and then the reinforced concrete piles are poured, so that pile body occlusion is realized. When the occlusive pile is constructed in a karst cavity area, the situation that the karst cavity (soil cave) is not tightly filled is often met, a full sleeve cast-in-place pile construction technology is mostly adopted for preventing hole collapse, but when a steel casing is pulled out, concrete which is not initially solidified flows into the karst cavity, so that the problem that the pile cannot be formed due to concrete loss is caused. In order to solve the problem of concrete loss, patent application No. CN201120488177.2 discloses a soft-wrapped reinforcement cage for preventing the diameter variation of a cast-in-place concrete pile, which can effectively solve the phenomena of diameter expansion, over-filling, bulging and the like of the cast-in-place concrete pile, and greatly reduce the construction cost of piling. The technology solves the problem of concrete loss during the construction of the reinforced concrete cast-in-place pile, but can not solve the pile forming problem of plain concrete.

Disclosure of Invention

To above not enough, the utility model aims to solve the technical problem that a plain concrete pile stake becomes stake device in karst cavity district is provided for solve plain concrete pile problem of forming.

In order to solve the technical problems, the utility model adopts the technical proposal that,

a pile forming device for plain concrete piles in a karst cavity area comprises a steel pile casing, a plastic pile casing and a measuring floating rod, wherein the steel pile casing is sleeved outside the plastic pile casing, a folding piece is arranged in the plastic pile casing, and the measuring floating rod is fixedly installed in the plastic pile casing.

When adopting above technical scheme, the utility model discloses still further adopt or make up and adopted following technical scheme.

The plastic protective cylinder comprises a protective cylinder wall and folding pieces, and the adjacent protective cylinder walls are connected in a telescopic manner through the folding pieces.

The folding piece comprises a first folding plate and a second folding plate, the two sides of the first folding plate are respectively connected with the cylinder wall of the protective cylinder and the second folding plate in a rotating mode, and the two sides of the second folding plate are respectively connected with the first folding plate and the adjacent cylinder wall of the protective cylinder.

The inner side wall of the protective cylinder is uniformly connected with a fixing ring, and the measuring floating rod is slidably arranged in the fixing ring.

At least three fixing rings are fixedly connected in the wall of the protective cylinder, the distance between every two adjacent fixing rings is 1m, and the distance between the fixing ring at the uppermost end and the top end of the plastic protective cylinder is 5 m.

The plastic protective cylinder at least comprises two protective cylinder walls and two folding pieces.

The lower end surface of the plastic protection cylinder is fixedly connected with a protection cylinder flanging.

And stiffening plates are arranged on the upper end surface of the flanging of the protective cylinder and the inner side of the plastic protective cylinder.

The width of the flanging of the protective cylinder is one fifth of the diameter of the plastic protective cylinder.

The measuring floating rod comprises a floating ball and a scale rod, and the floating ball is fixedly arranged at the lower end of the scale rod.

The beneficial effects of the utility model are that, through the setting of a steel protects a section of thick bamboo, the concrete material of being convenient for protects a section of thick bamboo shaping in the steel, avoids the loss of initial set concrete, protects a setting of section of thick bamboo through the plastics that is equipped with the folded piece, can prevent to protect a section of thick bamboo to remove at the steel and have the clearance between the hole of back concrete pile and construction, improves the intensity and the stability of concrete pile.

Drawings

FIG. 1 is a top view of the present novel use;

FIG. 2 is a novel cross-sectional view of the present use;

reference numerals: the device comprises a steel protective cylinder 1, a plastic protective cylinder 2, a protective cylinder flange 3, a stiffening plate 4, a fixing ring 5, a measuring floating rod 7, a protective cylinder wall 8, a folding piece 9, a first folding plate 10, a second folding plate 11, a floating ball 12 and a scale rod 13.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model provides a karst cavity district plain concrete pile becomes stake device, including steel protects a 1, plastics protect a 2 and measure the floating rod 7, 1 cover of steel protects a 2 is established in plastics and is protected a 2 outside, plastics protect 2 and are equipped with folded piece 9, measure 7 fixed mounting of floating rod in plastics protect a 2, protect a 1 setting through the steel, the concrete material of being convenient for is at the steel and protects a shaping in a section of thick bamboo, avoid the loss of initial set concrete, protect 2 settings of a 2 through the plastics that is equipped with folded piece 9, can prevent to protect 1 removal back concrete pile and the hole of construction at the steel and have the clearance between, improve the intensity and the stability of concrete pile.

Plastics protect a section of thick bamboo 2 including protecting a section of thick bamboo wall 8 and folded piece 9, adjacent protect between the section of thick bamboo wall 8 through the retractable connection of folded piece 9, through the setting of folded piece 9 for plastics protect a section of thick bamboo 2 and have certain extensibility, under the concrete pressure effect of flowing, plastics protect 2 diameter grow of a section of thick bamboo, can fill the steel and protect a 1 clearance of extracting the formation, satisfy the designing requirement.

The folding piece 9 comprises a first folding plate 10 and a second folding plate 11, two sides of the first folding plate 10 are respectively rotatably connected with the cylinder wall 8 of the protective cylinder and the second folding plate 11, two sides of the second folding plate 11 are respectively connected with the first folding plate 10 and the adjacent cylinder wall 8 of the protective cylinder, and preferably, the first folding plate and the second folding plate are structurally similar to door hinges.

Evenly be connected with solid fixed ring 5 on the inside wall of protecting section of thick bamboo wall 8, measure 7 slidable mounting of float rod in solid fixed ring 5, it is preferred, the diameter of measuring float rod 7 is less than solid fixed ring 5's diameter, be convenient for measure float rod 7 free slip in solid fixed ring 5, through the setting of measuring float rod 7, the height of the dynamic observation pile body concrete face of pouring of being convenient for, the buried depth of in time adjustment pipe satisfies the standard requirement.

At least, three solid fixed ring 5 of fixedly connected with in protecting a section of thick bamboo wall 8, the interval between the adjacent solid fixed ring 5 is 1m, and the solid fixed ring 5 of the top is apart from the top 5m of a plastics section of thick bamboo 2, through the setting of solid fixed ring 5, is convenient for keep measuring the float lever 7 and is in vertical state.

The plastic casing 2 at least comprises two casing walls 8 and two folding pieces 9, so that the plastic casing 2 can be conveniently stretched after receiving the concrete pressure.

The lower end face of the plastic pile casing 2 is fixedly connected with a pile casing flange 3, the upper end face of the pile casing flange 3 and the inner side of the plastic pile casing 2 are provided with stiffening plates 4, the stiffening plates 4 are used for improving the connection strength of the pile casing flange 3 and the plastic pile casing 2, preferably, the pile casing flange 3 is fixedly arranged at the lower end of a pile casing wall 8, and a gap is formed between the adjacent pile casing flanges 3.

The width of the protective barrel flanging 3 is one fifth of the diameter of the plastic protective barrel 2.

The measuring floating rod 7 comprises a floating ball 12 and a scale rod 13, the floating ball 12 is fixedly installed at the lower end of the scale rod 13, and the floating rod 7 is convenient to float upwards through the arrangement of the floating ball 12.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the terms corresponding to the reference numerals in the figures are used more herein, the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a karst cavity district plain concrete pile becomes stake device which characterized in that, includes steel protects a section of thick bamboo (1), plastics and protects a section of thick bamboo (2) and measures gag lever post (7), and steel protects a section of thick bamboo (1) cover and establish the outside at plastics and protect a section of thick bamboo (2), is equipped with folded piece (9) in plastics protect a section of thick bamboo (2), measures the gag lever post fixed mounting and protects in a plastics (2).

2. The device for forming the plain concrete pile in the karst cavity area according to claim 1, wherein the plastic pile casing (2) comprises a casing wall (8) and a folding piece (9), and the adjacent casing walls (8) are telescopically connected through the folding piece (9).

3. A karst cavity area plain concrete pile forming device according to claim 2, characterized in that the folding member (9) comprises a first folding plate (10) and a second folding plate (11), both sides of the first folding plate (10) are respectively rotatably connected with the protecting cylinder wall (8) and the second folding plate (11), and both sides of the second folding plate (11) are respectively connected with the first folding plate (10) and the adjacent protecting cylinder wall (8).

4. The device for forming the plain concrete pile in the karst cavity area according to claim 3, wherein a fixing ring (5) is uniformly connected to the inner side wall of the pile casing wall (8), and the measuring floating rod (7) is slidably installed in the fixing ring (5).

5. The device for forming the plain concrete pile in the karst cavity area according to claim 4, wherein at least three fixing rings (5) are fixedly connected in the wall (8) of the pile casing, the distance between the adjacent fixing rings (5) is 1m, and the fixing ring (5) at the uppermost end is 5m away from the top end of the plastic pile casing (2).

6. A device for forming a plain concrete pile in a karst void area according to claim 2, wherein the plastic casing (2) comprises at least two casing walls (8) and two folding members (9).

7. The device for forming the plain concrete pile in the karst cavity area according to claim 1, wherein a pile casing flange (3) is fixedly connected to the lower end face of the plastic pile casing (2).

8. The device for forming the plain concrete pile in the karst cavity area according to claim 7, wherein a stiffening plate (4) is arranged on the upper end surface of the pile casing flanging (3) and the inner side of the plastic pile casing (2).

9. A pile-forming device for plain concrete piles in karst void areas as claimed in claim 7, wherein the width of the pile casing flange (3) is one fifth of the diameter of the plastic pile casing (2).

10. The pile forming device for the plain concrete pile in the karst void area as claimed in claim 1, wherein the measuring float rod (7) comprises a float ball (12) and a scale rod (13), and the float ball (12) is fixedly arranged at the lower end of the scale rod (13).