阅读说明：本技术 一种护筒定位装置及方法 (Protective cylinder positioning device and method ) 是由 姜威 蔡鹏成 苏双常 王庆涛 于 2020-06-19 设计创作，主要内容包括：本发明属于桩基施工技术领域,公开了一种护筒定位装置及方法,该护筒定位装置包括全站仪、棱镜、主盘、至少三个副尺和调节件,主盘设置于护筒的上方,主盘的上表面具有二维坐标系,主盘的中心为二维坐标系的原点,棱镜能够放置于灌注桩的中心所在的主盘上的第一位置处,多个副尺位于同一平面内,副尺的一端连接于主盘,每个副尺上设置有一个调节件,调节件连接于护筒的侧壁,调节件和原点之间的间距可调节,多个调节件距原点的间距相同时,原点为护筒的中心,二维坐标系能够显示出第一位置与原点之间的间距,以便于确定护筒调整的精确距离及方向。该护筒定位方法利用上述定位装置实现快速、准确地定位护筒。(The invention belongs to the technical field of pile foundation construction, and discloses a pile casing positioning device and a pile casing positioning method. The pile casing positioning method utilizes the positioning device to realize quick and accurate positioning of the pile casing.)

1. The utility model provides a protect a section of thick bamboo positioner, includes total powerstation and prism, its characterized in that still includes:

the main disc (1) is arranged at the top of the pile casing, the upper surface of the main disc (1) is provided with a two-dimensional coordinate system, the center of the main disc (1) is the original point of the two-dimensional coordinate system, and the prism can be placed at a first position on the main disc (1) where the center of the cast-in-place pile is located;

at least three auxiliary rules (2) which are positioned in the same plane, wherein one end of each auxiliary rule (2) is connected to the main disc (1);

at least three regulating parts (3), every be provided with one on the secondary scale (2) regulating part (3), regulating part (3) connect in the lateral wall of protecting the section of thick bamboo, regulating part (3) with interval between the origin is adjustable, and is a plurality of regulating part (3) apart from the interval of origin is the same, the origin is the center of protecting the section of thick bamboo, two-dimensional coordinate system can show first position with interval between the origin.

2. A casing positioning device according to claim 1, characterized in that said adjustment member (3) is slidingly arranged on said secondary ruler (2).

3. A casing positioning device according to claim 2, characterized in that the secondary ruler (2) has a scale indicating length.

4. A casing positioning device according to claim 2, wherein the adjusting member (3) comprises a sliding sleeve (31) and a connecting plate (32) connected with the sliding sleeve (31), the sliding sleeve (31) is slidably sleeved on the secondary ruler (2), and the connecting plate (32) is connected with the side wall of the casing.

5. A casing positioning device according to claim 4, characterized in that the adjusting piece (3) further comprises a first bolt (33), the first bolt (33) is screwed on the sliding sleeve (31), the tail part of the first bolt (33) is positioned in the sliding sleeve (31) and can abut against the secondary ruler (2), and the head part of the first bolt (33) is positioned outside the sliding sleeve (31).

6. A casing positioning device according to claim 1, further comprising a connecting structure (5), one end of the connecting structure (5) being connected to the main disc (1) and the other end being connected to the secondary scale (2).

7. A casing positioning device according to claim 6, wherein the connecting structure (5) comprises a connecting block (51) and a second bolt (52), one end of the connecting block (51) is fixedly connected to the main plate (1), the other end of the connecting block is provided with a mounting groove, one end of the auxiliary ruler (2) is located in the mounting groove, the second bolt (52) is in threaded connection with the connecting block (51), the tail part of the second bolt (52) is located in the mounting groove and can abut against the side wall of the auxiliary ruler (2), and the head part of the second bolt (52) is located outside the connecting block (51).

8. A casing positioning device according to claim 7, wherein the secondary ruler (2) comprises a connecting portion (21) and a scale portion (22) connected to the connecting portion (21), the connecting portion (21) is arranged in the mounting groove in a penetrating manner, and the adjusting piece (3) is arranged on the scale portion (22).

9. A casing positioning method, characterized in that the casing positioning device according to any one of claims 1 to 8 is used, comprising:

positioning by using a total station to determine the center coordinate of the cast-in-place pile;

placing the pile casing at a second position on the ground according to the central coordinates of the cast-in-place pile;

connecting the adjusting pieces (3) to the top end of the pile casing, adjusting the distances from the adjusting pieces (3) to the original point to be equal, and determining the center of the pile casing;

placing a prism on a main disc (1) by combining a total station, and measuring the distance between the center of a pile casing and the center of a cast-in-place pile by the main disc (1);

and adjusting the position of the pile casing according to the distance until the center of the pile casing is coincided with the center of the cast-in-place pile.

10. A casing positioning method according to claim 9, wherein the measuring of the distance between the center of the casing and the center of the cast-in-place pile comprises:

lofting the prism by using a total station according to the central coordinate of the cast-in-place pile, and placing the prism at a first position on the main disc (1);

and measuring the distance between the prism and the origin by using a two-dimensional coordinate system.

Technical Field

The invention belongs to the technical field of pile foundation construction, and particularly relates to a pile casing positioning device and method.

Background

The pile is protected to the casing in-process need be adopted at pile foundation construction excavation hole pile for stabilize the pore wall, prevent the hole of collapsing, can also keep apart surface water, guide bit and fixed pile position etc.. The pile casing is a necessary device for protecting the cast-in-place pile, and has high requirements on the position accuracy, so that the pile casing needs to be accurately positioned.

In the traditional pile foundation construction process, the position of a pile core is determined by adopting a cross-shaped pile bolt method, and the position of the pile casing is measured and adjusted by a tape measure, so that the center of the pile casing is coincided with the pile core. The construction method has large positioning deviation, and the position of the pile casing relative to the pile column needs to be adjusted repeatedly, so that time consumption is serious, and the construction progress is influenced.

Therefore, a device and a method for positioning a casing are needed to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a pile casing positioning device, which not only can improve the pile casing positioning accuracy, but also can avoid repeatedly adjusting the position of a pile casing so as to achieve the effect of reducing the construction time.

In order to achieve the purpose, the invention adopts the following technical scheme:

a protect a section of thick bamboo positioner, includes total powerstation and prism, still includes:

the main disc is arranged at the top of the pile casing, the upper surface of the main disc is provided with a two-dimensional coordinate system, the center of the main disc is the original point of the two-dimensional coordinate system, and the prism can be placed at a first position on the main disc where the center of the cast-in-place pile is located;

at least three auxiliary rules which are positioned in the same plane, wherein one end of each auxiliary rule is connected with the main disc;

the secondary ruler is provided with a plurality of adjusting pieces, the adjusting pieces are connected to the side wall of the protective cylinder, the distance between each adjusting piece and the original point is adjustable, the distances between the adjusting pieces and the original point are the same, the original point is the center of the protective cylinder, and the two-dimensional coordinate system can display the distance between the first position and the original point.

Preferably, the adjusting member is slidably disposed on the sub-scale.

Preferably, the sub-scale has a scale indicating a length.

Preferably, the adjusting part comprises a sliding sleeve and a connecting plate connected with the sliding sleeve, the sliding sleeve is sleeved on the auxiliary ruler in a sliding manner, and the connecting plate is connected with the side wall of the pile casing.

Preferably, the adjusting member further comprises a first bolt, the first bolt is screwed to the sliding sleeve, the tail of the first bolt is located in the sliding sleeve and can abut against the secondary ruler, and the head of the first bolt is located outside the sliding sleeve.

Preferably, the multifunctional ruler further comprises a connecting structure, one end of the connecting structure is connected to the main disc, and the other end of the connecting structure is connected to the auxiliary ruler.

Preferably, the connection structure includes connecting block and second bolt, the one end of connecting block link firmly in the main disc, the mounting groove has been seted up to the other end, the one end of assistant's chi is located in the mounting groove, the second bolt with connecting block looks spiro union, the afterbody of second bolt is located in the mounting groove, can support and lean on the lateral wall of assistant's chi, the head of second bolt is located outside the connecting block.

Preferably, the auxiliary ruler comprises a connecting part and a scale part connected to the connecting part, the connecting part is arranged in the mounting groove in a penetrating mode, and the adjusting part is arranged on the scale part.

Another objective of the present invention is to provide a method for positioning a casing, which can not only improve the accuracy of positioning the casing, but also avoid repeatedly adjusting the position of the casing, so as to reduce the construction time.

In order to achieve the purpose, the invention adopts the following technical scheme:

a pile casing positioning method adopts the pile casing positioning device, and comprises the following steps:

positioning by using a total station to determine the center coordinate of the cast-in-place pile;

placing the pile casing at a second position on the ground according to the central coordinates of the cast-in-place pile;

connecting the adjusting pieces to the top end of the pile casing, adjusting the distances from the adjusting pieces to the original point to be equal, and determining the center of the pile casing;

placing a prism on a main disc by combining a total station, and measuring the distance between the center of the pile casing and the center of the cast-in-place pile by the main disc;

and adjusting the position of the pile casing according to the distance until the center of the pile casing is coincided with the center of the cast-in-place pile.

Preferably, the measuring the distance between the center of the casing and the center of the cast-in-place pile comprises:

lofting the prism by using a total station according to the central coordinate of the cast-in-place pile, and placing the prism at a first position on the main disc;

and measuring the distance between the prism and the origin by using a two-dimensional coordinate system.

The invention has the beneficial effects that:

according to the pile casing positioning device provided by the invention, the plurality of adjusting parts are adjusted to be equal in distance from the center of the main disc, the center of the main disc is the center of the pile casing, the prism can be placed at the first position on the main disc where the center of the cast-in-place pile is located through the total station, namely the first position is the center of the cast-in-place pile, the center of the pile casing and the center of the cast-in-place pile are both displayed in the two-dimensional coordinate system, and the center of the pile casing is the origin of the two-dimensional coordinate system, so that the distance between the two centers can be read out more easily, and the accurate distance and direction of the pile casing to be adjusted can be determined according to the distance, and therefore, the pile casing can be adjusted to be coincident with the center of. The pile casing positioning device provided by the invention can improve the pile casing positioning accuracy and avoid repeatedly adjusting the pile casing position, so as to reduce the construction time.

Drawings

Fig. 1 is a partial schematic view of a casing positioning device provided in an embodiment of the present invention;

FIG. 2 is a front view of the secondary ruler and adjustment member provided by the present embodiment;

FIG. 3 is a front view of an adjustment member provided by an embodiment of the present invention;

FIG. 4 is a bottom view of an adjustment member provided in accordance with an embodiment of the present invention;

fig. 5 is a side view of an adjustment member provided by an embodiment of the present invention.

In the figure:

1. a master disk; 2. a secondary ruler; 3. an adjustment member; 5. a connecting structure;

21. a connecting portion; 22. a scale section; 31. a sliding sleeve; 32. a connecting plate; 33. a first bolt; 51. connecting blocks; 52. a second bolt;

311. a through groove; 312. and (4) opening.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "mounted" are to be construed broadly, e.g., as meaning both connected and disconnectable, mechanically and electrically, directly or indirectly via intermediate media, whether internal or external to the elements, or in any other relationship between the elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise expressly specified or limited, the feature "on" or "under" the second feature may include the feature and the second feature being in direct contact, or may include the feature and the second feature being in contact not directly but with another feature therebetween. Also, a feature "on," "above," and "above" a second feature includes a feature that is directly above and obliquely above the second feature, or simply means that the feature is at a higher level than the second feature. Features "below," "beneath," and "beneath" a second feature include the feature being directly below and obliquely below the second feature, or merely indicating that the feature is at a lesser level than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1, the present embodiment provides a pile casing positioning device, which includes a total station, a prism, a main disc 1, at least three auxiliary scales 2, and at least three adjusting members 3, wherein the main disc 1 is disposed above the pile casing, an upper surface of the main disc 1 has a two-dimensional coordinate system, a center of the main disc 1 is an origin of the two-dimensional coordinate system, and the prism can be placed at a first position on the main disc 1 where the center of a cast-in-place pile is located; the plurality of auxiliary rulers 2 are positioned in the same plane, and one end of each auxiliary ruler 2 is connected with the main disc 1; each auxiliary ruler 2 is provided with an adjusting part 3, the adjusting parts 3 are connected to the side wall of the protective cylinder, the distance between each adjusting part 3 and the original point is adjustable, the distances between the adjusting parts 3 and the original points are the same, the original points are the centers of the protective cylinders, and the two-dimensional coordinate system can display the distance between the first position and the original points.

According to the pile casing positioning device provided by the embodiment, the plurality of adjusting pieces 3 are adjusted to be equal in distance from the center of the main disc 1, the center is the center of a pile casing, the prism can be placed at the first position on the main disc 1 where the center of a cast-in-place pile is located through the total station, namely the first position is the center of the cast-in-place pile, the center of the pile casing and the center of the cast-in-place pile are both displayed in a two-dimensional coordinate system, the center of the pile casing is the original point of the two-dimensional coordinate system, the distance between the two centers is easier to read, the accurate distance and the direction of the pile casing to be adjusted can be determined according to the distance, and therefore the pile casing can be adjusted to the position coinciding with the center of the cast-in-. The pile casing positioner that this embodiment provided not only can improve the accuracy of pile casing location, can also avoid repeatedly adjusting the position of pile casing to reach the effect that reduces the engineering time.

Optionally, can set up vice chi 2 between regulating part 3 and the main disc 1 into telescopic link, adjust the interval of a plurality of regulating parts 3 and 1 initial point of main disc to equal through the length of adjusting the telescopic link, can be applicable to the section of thick bamboo that protects of different diameters with this section of thick bamboo positioner that protects through flexible moreover.

In this embodiment, the adjusting member 3 is slidably disposed on the sub-scale 2. The intervals of the plurality of adjusting pieces 3 from the origin of the main tray 1 are adjusted to be equal by sliding the adjusting pieces 3. The distance between the adjusting member 3 and the origin of the main plate 1 can be measured using a ruler. In the present embodiment, the sub scale 2 has a scale indicating the length. The distance between the adjusting piece 3 and the original point can be directly read out in the sliding process of the adjusting piece 3, and the process of measuring by using other tools can be omitted, so that the adjusting is more convenient and faster.

Optionally, the auxiliary rulers 2 and the adjusting piece 3 are respectively provided with four, and the four auxiliary rulers 2 are uniformly distributed on the edge of the main disc 1 along the circumference around the origin. Preferably, the connection position of each sub ruler 2 and the main disc 1 corresponds to one axis in the two-dimensional coordinate system, the scale values on the sub ruler 2 are continuous with the scale values on the two-dimensional coordinate system of the main disc 1, the scale values are 0 scale at the original point, and the scale values are continuously and sequentially increased from the original point to the sub ruler 2, so that the diameter of the protective sleeve can be conveniently measured by using the main disc 1 and the sub ruler 2.

As shown in fig. 1, a circle is provided at a 5cm scale of a two-dimensional coordinate system, and the circle is used as a mark for judging the deviation between the center of the casing and the center of the cast-in-place pile, and in some construction sites with lower position accuracy requirements, after the prism is placed at the first position of the main plate 1, if the distance between the prism (the center of the cast-in-place pile) and the origin (the center of the casing) is less than 5cm, that is, the prism is located in the circle, it indicates that the deviation is within an allowable range, therefore, the position of the casing does not need to be adjusted if the prism is outside the circle, and if the prism is outside the circle, the adjustment needs to be performed according to the deviation condition, of course, 5cm is not a fixed circle radius, and may be other values.

As shown in fig. 3 to 5, the adjusting member 3 includes a sliding sleeve 31 and a connecting plate 32 connected to the sliding sleeve 31, the sliding sleeve 31 is slidably sleeved on the secondary ruler 2, and the connecting plate 32 is connected to the sidewall of the casing. The connecting plate 32 extends downwards from the bottom end of the sliding sleeve 31, and the contact area of the connecting plate and the side wall of the casing is increased, so that the connecting plate 32 and the casing are connected more stably.

Specifically, the adjusting member 3 further includes a first bolt 33, the first bolt 33 is screwed to the sliding sleeve 31, a tail portion of the first bolt 33 is located in the sliding sleeve 31 and can abut against the secondary ruler 2, and a head portion of the first bolt 33 is located outside the sliding sleeve 31. The head of the first bolt 33 is screwed forward, the first bolt 33 moves towards the auxiliary ruler 2 until the first bolt is tightly pushed, the sliding sleeve 31 can be fastened on the auxiliary ruler 2, and the situation that the positioning accuracy is affected due to the fact that the center of the pile casing deviates due to the sliding of the sliding sleeve 31 when the pile casing is under the action of external force is prevented; by turning the head of the first bolt 33 in the reverse direction, the first bolt 33 is separated from the sub-scale 2, so that the position of the adjusting member 3 on the sub-scale 2 can be adjusted.

More specifically, the sliding sleeve 31 is provided with a through groove 311, the secondary scale 2 is arranged in the through groove 311 in a penetrating manner, the through groove 311 is provided with an opening 312, as shown in fig. 2 and 4, the scale on the secondary scale 2 is exposed through the opening 312, so that the reading by a constructor is convenient, and the edge of the opening 312 on the upper surface of the sliding sleeve 31 is provided with a scale mark for aligning with the scale on the secondary scale 2 to determine the accurate position of the sliding sleeve 31, thereby improving the positioning accuracy.

The pile casing positioner that this embodiment provided still includes connection structure 5, and connection structure 5's one end is connected in main board 1, and the other end is connected in vice chi 2.

The sub-scale 2 may be attached to the main plate 1 by means of bolt or screw fastening. In this embodiment, as shown in fig. 1, connection structure 5 includes connecting block 51 and second bolt 52, and connecting block 51's one end links firmly in main disc 1, and the mounting groove has been seted up to the other end, and the one end of vice chi 2 is located the mounting groove, and second bolt 52 and connecting block 51 looks spiro union, and the afterbody of second bolt 52 is located the mounting groove, can lean on the lateral wall of vice chi 2, and the head of second bolt 52 is located outside connecting block 51. Connecting block 51 sets up with the master 1 is integrative, and the mode that leans on through second bolt 52 top is connected, and the dismouting of the master 1 of being convenient for and vice chi 2 is unpacked apart when not using, is favorable to depositing, protects a section of thick bamboo to the diameter is too big moreover, can change longer vice chi 2 for the range of application is wider.

As shown in fig. 2, the sub scale 2 includes a connecting portion 21 and a scale portion 22 connected to the connecting portion 21, the connecting portion 21 is inserted into the mounting groove, and the scale portion 22 is sleeved with the sliding sleeve 31. In this implementation, the width of connecting portion 21 is less, just in time wears to locate the mounting groove, forms the step face at the junction of connecting portion 21 and scale portion 22, and the step face can block in the notch of mounting groove for fix a position vice chi 2, begin to draw the scale from the step face on the scale portion 22, when making vice chi 2 assemble with main disc 1, the scale on the scale portion 22 just in time splices with the scale on the main disc 1. In the present embodiment, the connecting block 51 also has a scale (not shown), and the scale on the main plate 1, the scale on the connecting block 51 and the scale on the scale portion 22 are connected in sequence.

The embodiment also provides a pile casing positioning method, and the pile casing positioning device is adopted, and comprises the following steps:

and S1, positioning by using a total station to determine the center coordinates of the cast-in-place pile.

And S2, placing the pile casing at a second position on the ground according to the central coordinates of the cast-in-place pile.

The accuracy of the second position is lower, and the position of the pile casing is inaccurate, and needs to be adjusted subsequently to increase the accuracy of the installation of the pile casing.

And S3, connecting the adjusting pieces 3 to the top end of the pile casing, adjusting the distances from the adjusting pieces 3 to the original point to be equal, and determining the center of the pile casing.

Firstly, respectively connecting four auxiliary rulers 2 to four connecting blocks 51 on a main disc 1; then, the diameter of the protective cylinder is measured by using the scales on the main disc 1 and the auxiliary ruler 2, and the main disc 1 and the auxiliary ruler 2 are placed at proper positions at the top end of the protective cylinder; finally, by finely adjusting the adjustment members 3 so that the four adjustment members 3 are equidistant from the origin, the sliding sleeve 31 is fastened to the sub-scale 2, and the connecting plate 32 is connected to the side wall of the casing.

And S4, placing the prism on the main disc 1 in combination with a total station, and measuring the distance between the center of the pile casing and the center of the cast-in-place pile by the main disc 1.

Firstly, lofting a prism by using a total station according to the central coordinate of a cast-in-place pile, and placing the prism at a first position on a main disc 1, namely the prism is positioned at the center of the cast-in-place pile; then, the distance between the prism and the origin is measured by using a two-dimensional coordinate system.

And S5, adjusting the position of the pile casing according to the distance until the center of the pile casing coincides with the center of the cast-in-place pile.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.