CN218157014U - Marine wind power implantation rock-socketed pile grouting compactness sampling device - Google Patents

Abstract

The application discloses marine wind power implants socketed pile compactness sampling device that is in milk, this sampling device includes: the device comprises a storage barrel, a bottom support piece, an installation piece and a bottom sealing plate; the bottom supporting piece is arranged at the bottom of the material storage barrel; the mounting piece is arranged in the material storage barrel and is connected with the bottom supporting piece; the bottom shrouding is rotated and is connected in the bottom of installed part. The bottom of the sampling device can be automatically opened through the hinge to automatically sample when the sampling device meets the bottom of a sampling device with thick slurry such as underwater slurry or grouting material in the downward-placing process, and the bottom of the sampling device can be closed to store a sample in the sampling device when the connecting pipe is lifted; the application has strong practicability and wide application range.

Description

Marine wind power implantation rock-socketed pile grouting compactness sampling device

Technical Field

The application belongs to the technical field of offshore wind power foundation construction, and particularly relates to a device for sampling grouting compactness of an embedded rock pile implanted by offshore wind power.

Background

In the offshore wind power development process, a design institute comprehensively considers the basic structure type of a wind turbine according to factors such as water depth, geological conditions, economy and the like of different sites. In recent years, in places such as Fujian and the like, the marine environment is severe, the typhoon is superstrong, the severe frequent occurrence of large surge and the marine geological conditions are changed violently, and the site selection of a wind field is gradually changed from soft silt geology to hard seabed surface layer covering thin geology. A plurality of provinces such as Fujian and Guangdong apply more pile core rock-socketed high pile cap foundation and implant rock-socketed fan foundation structures. For the foundation structure of the wind turbine embedded with rock (III-type pile), after the implanted pile is implanted, the annular space formed by the implanted pile and the rock wall section needs to be subjected to underwater grouting construction, and the grouting quality is an important factor influencing the safety of the foundation structure. The existing grouting quality control method mainly comprises two methods, wherein the actual grouting amount is larger than the theoretical square amount, and the actually measured liquid level top elevation of the circumferential joint grouting slurry reaches the design requirement after grouting is finished, but a specific underwater grouting sampling tool is lacked at present.

SUMMERY OF THE UTILITY MODEL

To above-mentioned prior art's shortcoming or not enough, the technical problem that this application will be solved provides marine wind power and implants the compact degree sampling device of rock-socketed pile grout.

In order to solve the technical problem, the application is realized by the following technical scheme:

the application provides marine wind power implants socketed pile closely knit degree sampling device that is in milk includes: the device comprises a storage barrel, a bottom support piece, an installation piece and a bottom sealing plate;

the bottom supporting piece is arranged at the bottom of the storage bucket, and a communication channel is arranged between the bottom supporting piece and the storage bucket;

the mounting piece is arranged in the material storage barrel and is connected with the bottom supporting piece;

the bottom closing plate is rotatably connected to the bottom of the mounting piece.

Optionally, foretell marine wind power implantation rock-socketed pile grouting compactness sampling device wherein, still includes: the breather pipe is arranged in the storage barrel, wherein the bottom of the breather pipe is arranged on the bottom support piece, and the top of the breather pipe exceeds the storage barrel.

Optionally, foretell marine wind power implantation rock-socketed pile grouting compactness sampling device, wherein, the bottom shrouding includes: the two 180-degree bottom sealing plates are rotatably connected to the bottom of the mounting piece through one-way hinges, and the two 180-degree bottom sealing plates substantially seal the bottom of the storage barrel in a sealing state.

Optionally, the above device for sampling grouting compactness of the offshore wind power implanted rock-socketed pile, wherein the bottom sealing plate is made of an iron sheet or a plastic plate.

Optionally, the above device for sampling grouting compactness of offshore wind power implantation rock-socketed pile, wherein the bottom support member comprises: and the supporting steel bars are arranged at the bottom of the material storage barrel in a crossed manner.

Optionally, the above device for sampling grouting compactness of the offshore wind power implantation rock-socketed pile is further provided with a guide limiting part on the outer side of the bottom of the stock bucket, wherein the guide limiting part is made of a magnetic material.

Optionally, foretell marine wind power implantation rock-socketed pile grouting compactness sampling device wherein, still includes: at least one section connecting pipe, adjacent setting the connecting pipe passes through threaded connection, the end set up the connecting pipe still with installed part threaded connection.

The application also provides a sampling method based on offshore wind power implanted socketed pile grouting compactness sampling device, the sampling method comprises the following steps:

grouting material in an annular space formed by the steel casing and the implanted pile;

lowering a sampling device from the auxiliary platform along the inner wall of the steel casing to a grouting interface in the grouting process;

sampling underwater grouting material on an auxiliary platform;

and lifting the connecting pipe on the auxiliary platform, and gradually withdrawing the sampling device after sampling.

Optionally, in the sampling method, during the lower setting sampling, the sampling is performed on the side where the gap between the steel casing and the implanted pile is larger; and if the sample device is not placed in place, taking the place of the sample device to be placed.

Optionally, the sampling method above, wherein the sampling device is submerged into the grouting material by applying pressure to the connecting pipe end of the auxiliary platform;

and/or, the operation should be carried out slowly in the process of lowering and lifting the sampling device, and the sampling device should be completely immersed in the grouting material;

and/or, gradually removing the screw-coupled connection tube while withdrawing the sample upward, wherein the sampling device is lifted upward at a vertical angle.

Compared with the prior art, the method has the following technical effects:

this application puts in-process sampling device under and meets the great slurry sampling device bottom of consistency such as mud or grout material under water and can open through the hinge is automatic to carry out the automatic sampling, and the sampling device bottom can be closed to store the sample in sampling device when lifting. The sampling device has strong practicability and wide application range, and can meet the sampling of materials in various spaces.

The underwater grouting material sampling process and the operation method of the rock-socketed pile underwater grouting material are introduced from the aspects of on-site equipment assembly, construction operation and the like, the construction effect is good, the efficiency is high, the operation is simple, the grouting material compactness and other performances are controlled and detected in situ in the grouting construction process, and powerful guarantee is provided for the safety of an offshore wind turbine foundation and the foundation grouting quality. The grouting material sampling device is constructed based on the existing offshore auxiliary platform, equipment is simple to assemble, and the problems that grouting materials are difficult to sample and grouting quality is difficult to detect in the underwater grouting construction process are solved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1: the three-dimensional drawing of the offshore wind power implanted rock-socketed pile grouting compactness sampling device is provided;

FIG. 2 is a schematic diagram: according to the sampling device, the offshore wind power is implanted into the bottom view of the rock-socketed pile grouting compactness;

FIG. 3: the perspective view of the grouting compactness sampling device for the offshore wind power implanted rock-socketed pile in the embodiment of the application;

FIG. 4 is a schematic view of: the application provides a flow chart of a method for sampling grouting compactness of an offshore wind power implanted rock-socketed pile.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1 to 3, in one embodiment of the present application, the offshore wind power embedded rock-socketed pile grouting compactness sampling device comprises: a storage bucket, a bottom support 4, a mounting member 6 and a bottom seal plate 5;

the bottom support 4 is arranged at the bottom of the storage bucket, and a communication channel is arranged between the bottom support 4 and the storage bucket;

the mounting piece 6 is arranged in the storage bucket and is connected with the bottom support piece 4;

the bottom closing plate 5 is rotatably connected to the bottom of the mounting member 6.

In the embodiment, in the lower placing process, the bottom of the sampling device can be automatically opened through a hinge to automatically sample when the sampling device meets the sampling device for slurry with large consistency such as underwater slurry or grouting material, and the bottom of the sampling device can be closed to store the sample in the sampling device when the sampling device is lifted; the sampling device has strong practicability and wide application range.

In the embodiment, the sampling device is preferably made of a steel pipe with the length of 100mm, the diameter of 50mm and the wall thickness of 3 mm.

This embodiment still includes: the storage barrel is arranged in the breather pipe 2, wherein the bottom of the breather pipe 2 is arranged on the bottom support piece 4, and the top of the breather pipe 2 exceeds the storage barrel. Through the setting of breather pipe 2, can realize the internal and external pressure balance of storage bucket, be favorable to the sampling operation, still can be used to go out water etc..

As shown in fig. 3, the bottom closing plate 5 includes: and each 180-degree bottom sealing plate is rotatably connected to the bottom of the mounting piece 6 through a one-way hinge, wherein the two 180-degree bottom sealing plates substantially seal the bottom of the storage bucket in a sealing state. Wherein, through the setting of above-mentioned one-way hinge for this embodiment is put in-process sampling device under and meets great slurry sampling device of consistency such as mud or grout material bottom shrouding 5 can open through the hinge is automatic to carry out the automatic sampling, and the sampling device bottom can be closed to store the sample in sampling device because of the action of gravity when treating that connecting pipe 1 lifts.

Further, the bottom closing plate 5 is made of iron sheet or plastic plate.

The bottom support 4 comprises: and the supporting steel bars are arranged at the bottom of the material storage barrel in a crossed manner. In this embodiment, preferably, four support steel bars are provided, and the sampling device can support the bottom sealing plate 5 in the lifting process, so that the sampling failure caused by scattering of the grouting material is avoided.

Wherein, the supporting steel bars are preferably arranged at the bottom of the storage bucket in a circumferentially uniform manner.

Further preferably, in this embodiment, the mounting member 6 is preferably mounted at a central position of the support bar.

Further preferably, a guiding position-limiting member 3 is further disposed at an outer side of the bottom of the material storage barrel, wherein the guiding position-limiting member 3 is made of a magnetic material. Wherein, direction locating part 3 has the direction function concurrently, and it can guarantee that sampling device can accurately get into annular grout space, reaches the purpose of accurate sample.

This embodiment still includes: at least one section connecting pipe 1, adjacent setting connecting pipe 1 passes through threaded connection, the end setting connecting pipe 1 still with 6 threaded connection of installed part. The connecting pipe 1 is preferably a steel pipe, and if the steel pipe has a diameter of 15mm and a wall thickness of 4mm, the above dimensions can be adjusted according to actual situations.

Further preferably, the length of the steel pipe can be set to be 5m, 2m or 1m and other sizes, length scales are engraved on the outer wall of the steel pipe, the purpose is to visually measure and calculate the estimation sampling position according to the lowering length and estimate the whole grouting height, and the link has good reference for the quality index of whether grouting is filled according to the requirement; the different ends of said steel tube are preferably screwed together.

As shown in fig. 4, the present embodiment further provides a sampling method based on grouting compactness of offshore wind power embedded rock-socketed piles, where the sampling method includes:

s1, pouring grouting material into an annular space formed by the steel casing and the implanted pile;

s2, lowering a sampling device from the auxiliary platform along the inner wall of the steel casing to a grouting interface in the grouting process;

s3, sampling underwater grouting material on the auxiliary platform;

and S4, lifting the connecting pipe 1 on the auxiliary platform, and gradually withdrawing the sampled sampling device.

In this embodiment, the following operations are also required before the completion of step S1.

And S11, constructing a pile casing, rock embedding, drilling and pile planting through constructing an auxiliary platform.

Particularly, the method is suitable for most offshore wind power embedded rock pile and similar sampling construction, and the embedded pile construction process generally comprises the following steps: measuring and positioning, pile driving, pile stabilizing and rock embedding platform manufacturing, transporting and installing, auxiliary pile driving, auxiliary platform reinforcing, steel pile casing pile driving, rock embedding and drilling, pile implanting, pipe installing, bottom sealing concrete pouring, annular seam grouting between an implanted pile and a rock wall and a pile casing, steel pile casing pulling, pile core concrete pouring of an implanted pile, auxiliary platform dismantling and upper structure installing.

And S12, implanting pile bottom sealing construction and rock-socketed section grouting construction.

Specifically, at present, the grouting operation of the offshore wind power implanted rock-socketed pile mainly comprises three parts: grouting an annular space between the implanted pile and the rock wall, grouting an annular space between the implanted pile and the pile casing, and pouring concrete into a pile core in the implanted pile.

And S13, calculating the access length of the threaded steel pipe of the sampling detection device according to the grouting design height of the socketed pile, the grouted height, the rock-entering depth of the socketed pile, the height of an auxiliary platform and the like.

Specifically, the connecting pipe 1 part of the sampling detection device is formed by connecting threaded steel pipes with different lengths, and the material of the connecting pipe 1 is a steel pipe (the diameter is 15mm, the wall thickness is 4mm, and the size can be changed). The length of the steel pipe can be set to be in a plurality of sizes of 5m, 2m or 1m and the like, length scales are engraved on the outer wall of the steel pipe, the purpose is that the sampling position can be visually measured and calculated according to the lowering length, the whole grouting height is estimated, and the link has good reference on the quality index of whether grouting is filled according to the requirement; the different ends of the steel tube are preferably screwed together.

In the step S1, in the lower lofting and sampling process, the steel casing and the implanted pile are spaced from each other by a larger distance; and if the sample device is not placed in place, taking the place of the sample device to be placed. Wherein, should according to actual conditions angle regulation when transferring this sampling device, should select the upstream side of planting the stake and transfer, can suitably adjust the angle of transferring when necessary.

In the process of lowering the sampling device, the guide limiting part 3 is further arranged on the outer side of the bottom of the material storage barrel, and the guide limiting part 3 is made of a magnetic material. The direction locating part 3 has the direction function concurrently, and it can guarantee that sampling device can accurately get into annular grout space, reaches the purpose of accurate sample.

Further, the specific technical solution of the sampling device referred to herein is described above, and is not described herein again.

In the step S2, the sampling device is sunk into the grouting material by applying pressure to the end of the connecting pipe 1 of the auxiliary platform; wherein, the process of exerting pressure should be carried out at the uniform velocity slowly, avoid because exert oneself too hard sampling device to bounce off, lead to the sample failure. Wherein, the sampling device can randomly sample at any time in the grouting process.

And calculating the steel pipe access length of the sampling detection device according to the grouting design height of the socketed pile, the grouted height and the rock penetration depth of the socketed pile.

The related connecting pipe 1 is provided with an external thread joint at one end and an internal thread joint at the other end.

The length of the connecting pipe 1 should be determined by considering the length margin caused by the deflection of the steel pipe due to the action of water flow.

The involved access length of the connecting pipe 1 is the height H1 of the auxiliary platform, the rock embedding depth H2 of the rock-embedded pile, the grouted height H3, the height H4 of the sampling device, the steel pipe deflection allowance H5 and the feeding depth H6 of the sampling device.

Furthermore, the operation should be slowly carried out in the process of lowering and lifting the sampling device, and the sampling device should be completely immersed in the grouting material, so that the sampling quality is ensured.

In the above step S3, the connection pipe 1 with the screw connection is gradually removed when the sample is withdrawn upward, wherein the sampling device is lifted upward at a vertical angle, thereby preventing sampling failure due to scattering of the grouting material.

Wherein, the in-process of retrieving sampling device is lifted to whole device, and sampling device bottom equipartition sets up 4 support bars, can support bottom shrouding 5 at the ascending in-process of sampling device, avoids scattering of grouting material to lead to the sample failure.

At present, the depth of water in general rock-socketed pile construction is more than 20m, and the fact that the steel pipe deflection caused by the action of water flow is large is considered, so that the guide limiting part 3 is arranged close to the position of the sampling device, on one hand, the water flow force can be resisted, the steel pipe is close to the rock-socketed pile body, and in addition, the sleeve has a guide effect, so that the sampling device accurately enters the annular grouting space to finish sampling.

The effect such as wave power in the offshore wind power implantation construction is considered, the sampling is carried out at the flat tide position, the position of the lowering device is selected at the upstream surface of the implanted pile, and the lowering angle can be adjusted if necessary to enable the lowering device to be close to the rock-socketed pile body.

This sampling device meets the great slurry sampling device bottom of consistency such as mud or grout material under the water and can open through the hinge is automatic transferring through connecting pipe 1 and carry out the automatic sampling, and the sampling device bottom can be closed to store the sample in sampling device when treating that connecting pipe 1 lifts.

In step S4, in order to ensure the sampling quality, the sampling device should be completely placed inside the grouting, so as to obtain the internal material compactness data. Because the sampling device is great in underwater penetration depth, the operator should slightly press at a constant speed when applying pressure, and sampling failure caused by bouncing of the sampling device is avoided. Deducing the sampling result by operating personnel on the platform, and repeatedly transferring the sampling for many times to ensure the success rate of sampling so as to fill the grouting material into the sampling device as much as possible.

In the description of the present application, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly and include, for example, fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplicity of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The above embodiments are merely provided to illustrate the technical solutions of the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made in the present invention without departing from the spirit and scope of the present invention and shall be covered by the appended claims.

Claims (7)

1. Marine wind power implantation rock-socketed pile grouting compactness sampling device, its characterized in that includes: the device comprises a storage barrel, a bottom support piece, an installation piece and a bottom sealing plate;

the bottom supporting piece is arranged at the bottom of the storage bucket, and a communication channel is arranged between the bottom supporting piece and the storage bucket;

the mounting piece is arranged in the material storage barrel and is connected with the bottom supporting piece;

the bottom closing plate is rotatably connected to the bottom of the mounting piece.

2. The offshore wind power embedded rock-socketed pile grouting compactness sampling device of claim 1, further comprising: the breather pipe is arranged in the storage barrel, wherein the bottom of the breather pipe is arranged on the bottom support piece, and the top of the breather pipe exceeds the storage barrel.

3. The offshore wind power implanted rock-socketed pile grouting compactness sampling device of claim 1, wherein the bottom closure plate comprises: the two 180-degree bottom sealing plates are rotatably connected to the bottom of the mounting piece through one-way hinges, and the two 180-degree bottom sealing plates substantially seal the bottom of the storage barrel in a sealing state.

4. The offshore wind power embedded rock-socketed pile grouting compactness sampling device of claim 3, characterized in that the bottom closing plate is made of iron sheet or plastic plate.

5. The offshore wind power implanted rock-socketed pile grouting compactness sampling device of claim 1, characterized in that said bottom support comprises: and the supporting steel bars are arranged at the bottom of the material storage barrel in a crossed mode.

6. The offshore wind power embedded rock-socketed pile grouting compactness sampling device of claim 1, characterized in that a guide limiting part is further arranged at the bottom outer side of the stock bucket, wherein the guide limiting part is made of a magnetic material.

7. The offshore wind power embedded rock-socketed pile grouting compactness sampling device of claim 1, further comprising: at least one section connecting pipe, adjacent setting the connecting pipe passes through threaded connection, the end setting the connecting pipe still with installed part threaded connection.

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