阅读说明：本技术 一种陆上大型桩基永久钢护筒的导向定位装置及其方法 (Guide positioning device and method for permanent steel casing of large onshore pile foundation ) 是由 付小莲 赵东黎 张园华 龚士平 雷赟 肖俊 全浩 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种陆上大型桩基永久钢护筒的导向定位装置及其方法,属于建筑施工领域,其技术方案要点是,包括：定位框架；定位组件,所述定位组件设置有四个,各个所述定位组件均设置在定位框架侧边的中心位置上,所述定位组件可进行伸缩；限位板,所述限位板沿垂直于定位组件长度方向设置在定位组件的端部；其中,各个所述限位板沿靠近定位框架的中心设置,且中心连线形成圆形结构,以使对下放的永久钢护筒定位固定。其优点在于在保证钢护筒下放精度的同时,其临时结构材料少、占地小,便于施工人员操作,提高了钢护筒下放的效率,且周转使用率高、可根据护筒的大小进行调整,适用的范围广。(The invention discloses a guide positioning device and a guide positioning method for a permanent steel casing of a large onshore pile foundation, belonging to the field of building construction and having the technical scheme key points that the guide positioning device comprises: a positioning frame; the positioning assemblies are arranged in four, each positioning assembly is arranged at the center of the side edge of the positioning frame, and the positioning assemblies can stretch and retract; the limiting plate is arranged at the end part of the positioning assembly along the direction perpendicular to the length direction of the positioning assembly; each limiting plate is arranged along the center close to the positioning frame, and the central connecting line forms a circular structure so as to position and fix the downward permanent steel casing. Its advantage lies in guaranteeing that the steel protects a section of thick bamboo and transfers the precision simultaneously, and its temporary structure material is few, take up an area of for a short time, and the constructor of being convenient for operates, has improved the efficiency that the steel protected a section of thick bamboo and transfers, and has enough to meet the need the rate of utilization height, can adjust according to the size of protecting a section of thick bamboo, and application scope is wide.)

1. The utility model provides a large-scale pile foundation permanent steel protects a direction positioner of section of thick bamboo on land which characterized in that includes:

a positioning frame (10);

the number of the positioning assemblies (20) is four, each positioning assembly (20) is arranged at the center of the side edge of the positioning frame (10), and the positioning assemblies (20) can be stretched;

the limiting plate (30), the limiting plate (30) is arranged at the end part of the positioning assembly (20) along the direction perpendicular to the length direction of the positioning assembly (20);

each limiting plate (30) is arranged along the center close to the positioning frame (10), and the central connecting line forms a circular structure so as to position and fix the downward permanent steel casing (40).

2. The guiding and positioning device for the large-sized land pile foundation permanent steel casing according to claim 1, wherein: two gradienters (11) are fixedly connected to the positioning frame (10), and the two gradienters (11) are arranged diagonally.

3. The guiding and positioning device for the large-sized land pile foundation permanent steel casing according to claim 2, wherein: the level gauge (11) is a metal bubble level gauge.

4. The guiding and positioning device for the large-sized land pile foundation permanent steel casing according to claim 1, wherein: and reinforcing ribs (12) are arranged at the corners of the positioning frame (10).

5. The guiding and positioning device for the large-sized land pile foundation permanent steel casing according to claim 1, wherein: locating component (20) include spacing steel case (21), adjust handle (22) and adjust pole (23), spacing steel case (21) are both sides opening boxed structure, the one end of adjusting pole (23) is worn to establish spacing steel case (21) and is connected with limiting plate (30), and other end welding and regulation handle (22) welding, it can follow spacing steel case (21) opening direction and remove to adjust pole (23).

6. The guiding and positioning device for the large-sized land pile foundation permanent steel casing according to claim 5, wherein: the adjusting rod (23) is provided with a limiting hole (231), and the limiting hole (231) is coaxially communicated with an inserting hole (211) formed in the upper portion of the limiting steel box (21) through a bolt so that the adjusting rod (23) can be locked.

7. The guiding and positioning device for the large-sized land pile foundation permanent steel casing according to claim 1, wherein: the size of the opening of the section of the limiting steel box (21) is 1mm larger than the width and the height of the adjusting rod (23).

8. The method for guiding and positioning the permanent steel casing of the large-scale land pile foundation according to claim 2, comprising the following steps:

s1, hoisting a positioning frame (10) formed by splicing and welding the I-steel section bars to the construction horizontal ground of the pile hole by adopting hoisting equipment;

s2, observing by adopting a level gauge (11) fixed on the diagonal line of the positioning frame (10), enabling the top surface of the installed positioning frame (10) to be horizontally arranged, and temporarily fixing the positioning frame with a flat and compact ground after positioning;

s3, adjusting the positioning component (20) back and forth according to the diameter of the permanent steel casing (40) in front of the permanent steel casing (40) below (namely adjusting the plane position of the limiting plate (30)) to enable the midpoints of top openings and bottom openings of the four limiting plates (30) to form an upper circle and a lower circle with the same diameter, wherein the centers of the upper circle and the lower circle are on the same vertical line with the center of the pile foundation;

s4, hoisting the permanent steel casing (40) to enable the steel casing (40) to be lowered along an upper layer and a lower layer of circles with the same diameter and formed by the limiting plates (30);

s5, after the permanent steel protective cylinder (40) is lowered to the position below the bottom surface of the positioning frame (10), detecting whether the center of the floating ball and the center of the upper layer of circle and the lower layer of circle of the limiting plate (30) are on the same vertical line by adopting an in-pipe floating ball detection method, and ensuring the verticality and the plane position of the permanent steel protective cylinder (40), thereby completing the lowering guiding positioning of the permanent steel protective cylinder (40).

9. The method for guiding and positioning the permanent steel casing of the large onshore pile foundation according to claim 8, wherein when the permanent steel casing (40) moves, the position of the permanent steel casing (40) is adjusted, and then the position of the limiting plate (30) is adjusted to be the same as the initial adjustment position.

Technical Field

The invention relates to the technical field of building construction, in particular to a guide positioning device and a guide positioning method for a permanent steel casing of a large onshore pile foundation.

Background

With the development of traffic construction in China, bridges are inevitably built in high earthquake areas, and a steel pile casing pile foundation is generally designed to improve the earthquake resistance of the foundation. The large-diameter super-long steel pile casing pile is characterized in that a permanent steel casing with the same diameter as the pile foundation is additionally arranged in a section of range below the top surface of the pile foundation, and a steel bar and a grouting pipe are welded on the outer side of the steel casing so as to perform grouting reinforcement on a gap between a hole wall and the outer wall of the steel casing and improve the anti-seismic performance of the steel pile casing pile. During this type of pile foundation construction, bury the interim section of thick bamboo of protecting earlier and carry out the bored pile construction, clear hole for the first time finishes the inspection qualified back, buries pile foundation permanent steel in the downthehole underground and protects a section of thick bamboo and steel reinforcement cage, carries out the clear hole of secondary and pours into concrete under water again, carries out the slip casting at last and extracts out interim steel and protects a section of thick bamboo, accomplishes the construction of pile foundation. In view of the pile foundation quantity and the model are many, in order to ensure the quality of pile foundation construction, the installation location of permanent steel casing should be accurate, quick, and steel casing positioner should have enough to meet the need the use, and the scope of being applicable should be extensive.

The section of thick bamboo is protected to pile foundation steel to the upper and lower floor well font frame that adopts usually in the pile foundation construction, and upper and lower well font frame need erect in the drill way top, and interim structural engineering volume is big, take up an area of big, and the constructor operation of being not convenient for influences the construction progress, and its application scope of diameter of its leading truck is little.

Therefore, the guiding and positioning device and the method for the permanent steel casing of the large onshore pile foundation are provided.

Disclosure of Invention

The invention mainly aims to provide a guide positioning device and a guide positioning method for a permanent steel casing of a large onshore pile foundation, which aim to solve the problems in the background technology.

In order to achieve the above object, the present invention provides a guide positioning device for a large onshore pile foundation permanent steel casing, comprising: a positioning frame; the positioning assemblies are arranged in four, each positioning assembly is arranged at the center of the side edge of the positioning frame, and the positioning assemblies can stretch and retract; the limiting plate is arranged at the end part of the positioning assembly along the direction perpendicular to the length direction of the positioning assembly; each limiting plate is arranged along the center close to the positioning frame, and the central connecting line forms a circular structure so as to position and fix the downward permanent steel casing.

Furthermore, two gradienters are fixedly connected to the positioning frame, and the two gradienters are arranged diagonally.

Further, the level is a metal bubble level.

Furthermore, reinforcing ribs are arranged at the corners of the positioning frame.

Further, locating component includes spacing steel box, regulation handle and regulation pole, spacing steel box is both sides opening box structure, spacing steel box and limiting plate connection are worn to establish by the one end of adjusting the pole, and other end welding and regulation handle welding, it can follow spacing steel box opening direction and remove to adjust the pole.

Furthermore, the adjusting rod is provided with a limiting hole, and the limiting hole is coaxially communicated with an inserting hole formed in the upper portion of the limiting steel box through a bolt so that the adjusting rod can be locked.

Furthermore, the size of the opening of the section of the limiting steel box is 1mm larger than the width and the height of the adjusting rod.

Further, the method comprises the following steps:

s1, hoisting a positioning frame formed by splicing and welding the I-steel section bars to the construction horizontal ground of the pile hole by adopting hoisting equipment;

s2, observing by adopting a level gauge fixed on the diagonal line of the positioning frame to enable the top surface of the installed positioning frame to be horizontally arranged, and temporarily fixing the positioning frame with the flat and compact ground after positioning;

s3, adjusting a positioning assembly forwards and backwards according to the diameter of the permanent steel casing before the permanent steel casing below (namely adjusting the plane position of the limiting plate), so that the midpoints of top openings and bottom openings of the four limiting plates form an upper circle and a lower circle with the same diameter, and the centers of the upper circle and the lower circle and the center of the pile foundation are on the same vertical line;

s4, hoisting the permanent steel casing, and enabling the steel casing to be lowered down along two upper and lower layers of circles with the same diameter and formed by the limiting plates;

s5, after the permanent steel casing is lowered to be below the bottom surface of the positioning frame, detecting whether centers of upper and lower layers of circles of the floating ball and the limiting plate are on the same vertical line by using an in-pipe floating ball detection method, and ensuring the verticality and the plane position of the permanent steel casing, so that lowering guiding positioning of the permanent steel casing is completed.

Further, when the permanent steel casing moves, the position of the permanent steel casing needs to be adjusted, and then the position of the limiting plate is adjusted to be the same as the initial adjustment position.

The technical scheme of the invention is specially designed for the lowering construction and positioning of the permanent steel casing of the large-scale onshore pile foundation, and can also be used for the lowering construction of the temporary steel casing of the pile foundation.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a general block diagram illustrating a guide positioning device and a method for a permanent steel casing of a large onshore pile foundation;

FIG. 2 shows a sectional view 1-1 of FIG. 1 of a guide positioning device for a permanent steel casing of a large onshore pile foundation and a method thereof;

FIG. 3 is a sectional view taken along line 2-2 of FIG. 1 illustrating a guide positioning device for a permanent steel casing of a large onshore pile foundation and a method thereof;

fig. 4 shows a concrete structure diagram of a guiding and positioning device of a large-scale land pile foundation permanent steel casing and a positioning assembly of the method thereof.

Wherein the figures include the following reference numerals:

10. a positioning frame; 11. a level gauge; 12. reinforcing ribs; 20. a positioning assembly; 21. limiting a steel box; 211. inserting holes; 22. a lever handle; 23. adjusting a rod; 231. a limiting hole; 30. a limiting plate; 40. and (4) a permanent steel casing.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 4, the present invention provides a guiding and positioning device for a large onshore pile foundation permanent steel casing, comprising: a positioning frame 10; the number of the positioning assemblies 20 is four, each positioning assembly 20 is arranged at the center of the side edge of the positioning frame 10, and the positioning assemblies 20 can be extended and retracted; the limiting plate 30 is arranged at the end part of the positioning assembly 20 along the direction perpendicular to the length direction of the positioning assembly 20; each limiting plate 30 is arranged along the center close to the positioning frame 10, and the central connecting line forms a circular structure, so that the downward permanent steel casing 40 is positioned and fixed.

Use the technical scheme of this embodiment, protect a section of thick bamboo 40 through permanent steel and constitute two upper and lower circles with the diameter respectively along the mid point of four limiting plate 30 top mouths and end mouth and transfer, make when guaranteeing that permanent steel protects a section of thick bamboo 40 and transfer the precision, the temporary structure material has been reduced, take up an area of, the constructor operation of being convenient for, the efficiency that a section of thick bamboo was transferred is protected to the steel has been improved, and locating component 20 carries out the regulation of stretching out and drawing back, limiting plate 30 carries out synchronous motion, make limiting plate 30 top mouths and end mouth's mid point constitute respectively about two circles size with the diameter can protect a size to adjust, the turnover rate of utilization has been improved effectively, and application scope is.

As shown in fig. 1, two levels 11 are fixedly connected to the positioning frame 10, the two levels 11 are diagonally arranged, and the top surface of the whole positioning frame 10 can be horizontally arranged by observing the levels 11 diagonally arranged on the positioning frame 10, so that the accuracy of guiding and positioning of the permanent steel casing is improved.

Preferably, the level 11 is a metal bubble level.

As shown in fig. 1, the positioning frame 10 has reinforcing ribs 12 at its corners, and the stability of the entire structure of the positioning frame 10 can be improved by providing a plurality of reinforcing ribs 12.

For the specific structure of the positioning assembly 20, as shown in fig. 4, the positioning assembly 20 includes a limiting steel box 21, an adjusting handle 22 and an adjusting rod 23, the limiting steel box 21 is a box structure with openings on both sides, one end of the adjusting rod 23 penetrates through the limiting steel box 21 and is connected with the limiting plate 30, the other end of the adjusting rod 23 is welded to the adjusting handle 22, and the adjusting rod 23 can move along the opening direction of the limiting steel box 21.

This kind of design promotes through the front and back and adjusts handle 22 and remove regulation pole 23 to the plane position of adjustment limiting plate 30 makes four limiting plate 30 top mouths and the mid point of end mouth constitute two upper and lower circles with the diameter, and the center of upper and lower two-layer circle and the center of pile foundation are on same plumb line, have improved effectively and have transferred the degree of accuracy of permanent steel casing 40 installation location.

As shown in fig. 4, the adjusting rod 23 is provided with a limiting hole 231, the limiting hole 231 is coaxially communicated with the insertion hole 211 formed in the upper portion of the limiting steel box 21 through a bolt, so that the adjusting rod 23 is locked, and the problem that the position of the limiting plate 30 is moved due to the displacement of the adjusting rod 23 when the permanent steel casing 40 is lowered is solved.

In specific implementation process, the size of limiting steel box 21 should be greater than adjusting pole 23 to make adjusting pole 23 can remove in limiting steel box 21, through the width and the 1mm that highly big of limiting steel box 21 cross-section opening size ratio adjusting pole 23, can avoid because the clearance is too big between limiting steel box 21 and the adjusting pole 23, cause adjusting pole 23 to drive limiting plate 30 and take place the serious problem of skew.

In the implementation, the method for guiding and positioning the permanent steel casing of the large onshore pile foundation comprises the following steps:

s1, hoisting the positioning frame 10 formed by splicing and welding the I-steel section bars to the construction horizontal ground of the pile hole by adopting hoisting equipment;

s2, observing by using a level meter 11 fixed on the diagonal line of the positioning frame 10, so that the top surface of the installed positioning frame 10 is horizontally arranged and is temporarily fixed with the flat and compact ground after being positioned;

s3, adjusting the positioning assembly 20 back and forth (i.e. adjusting the plane position of the limiting plate 30) according to the diameter of the permanent steel casing 40 before the permanent steel casing 40 below, so that the midpoints of top openings and bottom openings of the four limiting plates 30 form an upper circle and a lower circle with the same diameter, and the centers of the upper circle and the lower circle and the center of the pile foundation are on the same vertical line;

s4, hoisting the permanent steel casing 40, so that the steel casing 40 is lowered along the upper and lower layers of circles with the same diameter formed by the limiting plate 30;

s5, after the permanent steel casing 40 is lowered to the position below the bottom surface of the positioning frame 10, detecting whether the center of the floating ball and the centers of the upper layer of circle and the lower layer of circle of the limiting plate 30 are on the same vertical line by using an in-pipe floating ball detection method, and ensuring the verticality and the plane position of the permanent steel casing 40, thereby completing the lowering guiding positioning of the permanent steel casing 40.

Specifically, when the permanent steel casing 40 moves, the position of the permanent steel casing 40 needs to be adjusted, and then the position of the limiting plate 30 needs to be adjusted to be the same as the initial adjustment position.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the top surface of the whole positioning frame can be horizontally arranged by observing the gradienter which is diagonally arranged on the positioning frame, so that the guiding and positioning accuracy of the permanent steel casing is improved;

2. the centers of the upper layer of circle and the lower layer of circle are on the same vertical line with the center of the pile foundation, so that the permanent steel casing can be placed down along the upper layer of circle and the lower layer of circle with the same diameter, and temporary structural materials are effectively reduced;

3. the adjusting rod is moved by pushing the adjusting handle forwards and backwards, so that the upper layer and the lower layer of circles with the same diameter and formed by the limiting plates can be adjusted according to the size of the pile casing, the turnover utilization rate of the permanent steel pile casing guiding and positioning device is effectively improved, and the application range is wide.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.