CN114687375A - Foundation structure of motor set and construction method thereof - Google Patents
Foundation structure of motor set and construction method thereof Download PDFInfo
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- CN114687375A CN114687375A CN202210370574.2A CN202210370574A CN114687375A CN 114687375 A CN114687375 A CN 114687375A CN 202210370574 A CN202210370574 A CN 202210370574A CN 114687375 A CN114687375 A CN 114687375A
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 146
- 239000010959 steel Substances 0.000 claims abstract description 146
- 230000004888 barrier function Effects 0.000 claims abstract description 17
- 239000004568 cement Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 25
- 239000002002 slurry Substances 0.000 claims description 22
- 239000002689 soil Substances 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 2
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- 239000007788 liquid Substances 0.000 description 18
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
Abstract
The invention provides a foundation structure of a motor group and a construction method thereof, wherein the foundation structure comprises a foundation base, the top of the foundation base is provided with a mounting groove, an outer steel pipe pile is embedded in the mounting groove in a clamping manner, the side surface of the outer steel pipe pile is provided with a plurality of positioning holes, the bottom wall of the outer steel pipe pile is provided with grouting holes, and an inner steel pipe pile is inserted into the outer steel pipe pile; the outer steel-pipe pile has been seted up down holding tank and last holding tank respectively in the both sides of locating hole, the fixed barrier film that is provided with in the body, outer steel-pipe pile has seted up the opening on the outer wall of last holding tank, just opening and body are linked together. The invention provides a foundation structure of a motor set and a construction method thereof, which can flexibly increase the height of the foundation structure according to needs, keep the integral gravity center at a lower position and ensure that the whole structure is more stable.
Description
Technical Field
The invention relates to the technical field of wind turbine generators, in particular to a foundation structure of a motor generator and a construction method of the foundation structure.
Background
The foundation structure of the onshore wind turbine generator is mainly composed of an expansion foundation, a pile foundation and a rock anchor rod foundation, wherein the three foundation structures mainly rely on the friction force between the foundation formed by self weight and the foundation to resist the horizontal force transmitted by the wind turbine generator, and rely on the resultant force and the couple formed by the counter force of the foundation in the vertical direction to resist the vertical load and the overturning bending moment transmitted by the wind turbine generator. Due to the fact that the base area and the volume scale of the large-size land wind turbine foundation structure are large, when the large-size land wind turbine foundation structure meets unfavorable geological conditions, the foundation structure often has the problems of uneven settlement and difficulty in control, and therefore great difficulty is brought to engineering construction. Moreover, the floor space of the infrastructure and the engineering investment can also increase upwards, and even the economy and feasibility of the onshore wind power plant investment are affected.
In the prior art, a core-filling cylindrical foundation structure for a land wind turbine generator and a construction method thereof, which are disclosed as CN105569066B, comprise a cylindrical structure, a backfill structure arranged on the outer side of the cylindrical structure, and annular ribs transversely and annularly arranged on the cylindrical structure. Because the annular rib transversely encircles and locates the tubular structure, can avoid prior art to need to use anchor ring and flange ring to fix the anchor rib at the concrete, and then avoided the preparation and the installation flow of anchor ring and flange ring, can reduce basic engineering investment, improve the economic benefits of land wind-powered electricity generation field investment, consequently, this a fill core cylindric foundation knot for land wind turbine generator system has simple structure, low in production cost, and is applicable to the advantage of large-scale production. The construction method of the core filling cylindrical foundation structure for the onshore wind turbine generator set has the advantages of being simple in construction method, easy to control and fast in construction progress.
However, the method still has the obvious defects in the using process: 1. the height of the foundation structure is low, the foundation structure cannot be suitable for a wind generating set which needs to be installed at a high position, and the height of the foundation structure cannot be flexibly adjusted according to the use environment, so that the use of the foundation structure is limited; 2. the infrastructure of motor generator system uses the back for a long time, and rainwater, snow water etc. in the environment can follow the gap between the structure gradually and permeate, after long-term accumulation, lead to infrastructure's bottom to appear into the water condition of corroding very easily, and then make infrastructure unstable, have great potential safety hazard.
Disclosure of Invention
The invention aims to provide a foundation structure of a motor set and a construction method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a foundation structure of a motor set comprises a foundation base, wherein the top of the foundation base is provided with a mounting groove, an outer steel pipe pile is arranged in the mounting groove in a clamped and embedded mode, the side surface of the outer steel pipe pile is provided with a plurality of positioning holes, the bottom wall of the outer steel pipe pile is provided with grouting holes, an inner steel pipe pile is inserted into the outer steel pipe pile, the bottom of the inner steel pipe pile is provided with a conical part, grouting channels are arranged in the inner steel pipe pile and the conical part of the inner steel pipe pile, a positioning piece is arranged in the positioning holes in a clamped and embedded mode and used for limiting the inner steel pipe pile, and a slot is formed in the positioning piece;
the outer steel pipe pile is respectively provided with a lower holding tank and an upper holding tank at two sides of the positioning hole, a lower sealing plate is movably arranged in the lower holding tank, a first spring is connected and arranged between the bottom of the lower sealing plate and the bottom of the lower holding tank, a fixed block is fixedly arranged in the upper holding tank, a second spring is arranged on the fixed block, one end of the second spring, far away from the fixed block, is connected and arranged with a push block, one side of the push block, close to the fixed block, is connected and arranged with a connecting rope, the bottom of the connecting rope is connected and arranged with an upper sealing plate, a pipe body is fixedly arranged in the upper holding tank, a piston plate is movably arranged in the pipe body, a barrier film is fixedly arranged in the pipe body, the bottom of the push block is fixedly provided with a push plate, one side of the push plate, close to the piston plate, is fixedly provided with a transmission rod, and the outer steel pipe pile is provided with a circulation hole on the outer wall of the upper holding tank, and the circulation hole is communicated with the pipe body.
Preferably, the bottom of outer steel-pipe pile is fixed and is provided with the extension post, the extension post inlay card sets up in the bottom of mounting groove.
Preferably, an expanded part is arranged in the inner steel pipe pile, the expanded part is communicated with the grouting channel, and the expanded part is arranged at one end, far away from the conical part, of the grouting channel.
Preferably, the exterior of the foundation base and the bottom of the outer steel pipe pile are filled with backfill soil layers.
Preferably, a clamping groove is formed in one side, close to the upper accommodating groove, of the lower sealing plate, a clamping rod is fixedly arranged at the bottom of the upper sealing plate, and the clamping rod and the clamping groove are identical in shape and size.
A construction method of a foundation structure based on the motor set comprises the following steps:
the method comprises the following steps: digging out surface soil, cleaning out the open ground, and placing a foundation base;
step two: hoisting the outer steel pipe pile to enable the outer steel pipe pile to be embedded in the installation groove of the foundation base;
step three: installing a positioning piece in a positioning hole of the corresponding outer steel pipe pile according to the total height of the foundation structure;
step four: inserting an inner steel pipe pile into the outer steel pipe pile, wherein the inner steel pipe pile is limited by a positioning piece;
step five: pouring cement slurry into the grouting channel of the inner steel pipe pile until the cement slurry is filled in the grouting channel and the inner cavity of the outer steel pipe pile, filling the gap of the outer steel pipe pile in the mounting groove with the cement slurry, and waiting for the cement slurry to solidify;
step six: backfilling the soil dug in the step one to form a backfill soil layer, and covering the whole foundation base and the bottom of the outer steel pipe pile by the backfill soil layer.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the outer steel pipe pile is embedded in the foundation base, the inner steel pipe pile is inserted in the outer steel pipe pile, and the position of the inner steel pipe pile can be flexibly adjusted, so that different height adjustments can be realized according to the requirements of different use places, and the application range is wider;
2. the invention adopts the effective combination of the foundation base, the outer steel pipe pile and the inner steel pipe pile, solves the problems that the traditional foundation base has large mass and the foundation structure is easy to topple because the gravity center rises when the foundation base is built to be too high;
3. when the inner steel pipe pile is installed, the inner steel pipe pile sinks in the outer steel pipe pile, and simultaneously, a series of devices are automatically triggered, so that functional liquids such as sealing liquid, maintenance liquid and the like stored in the pipe body flow out, the liquid is filled between the gap between the inner steel pipe pile and the gap between the outer steel pipe pile, the inner steel pipe pile can be further coated and protected, the gap between the inner steel pipe pile and the gap between the outer steel pipe pile can be filled, the water seepage problem after long-term use is avoided, and the foundation base is prevented from being corroded by water.
The invention provides a foundation structure of a motor set and a construction method thereof, which can flexibly increase the height of the foundation structure according to the requirement, keep the center of gravity of the whole at a lower position, and ensure that the whole is more stable.
Drawings
FIG. 1 is a schematic cross-sectional view of the main structure of the present invention (cement paste not poured);
FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic cross-sectional view of a specific structure of a positioning member according to the present invention;
FIG. 4 is a schematic cross-sectional view of the main structure of the present invention (poured cement paste);
fig. 5 is a sectional view schematically showing a partial structure of an outer steel pipe pile according to the present invention;
fig. 6 is an enlarged view of the invention at B in fig. 5.
In the figure: 1 basic base, 101 mounting grooves, 2 outer steel-pipe piles, 201 locating hole, 2011 lower holding tank, 2012 upper holding tank, 202 grout hole, 203 extension post, 3 inner steel-pipe piles, 301 toper portion, 302 grout passageway, 303 wide-spread portion, 4 setting elements, 401 slot, 5 backfill soil layers, 6 lower shrouding, 601 draw-in groove, 7 first spring, 8 fixed block, 9 second spring, 10 ejector pad, 11 connecting rope, 12 upper shrouding, 13 kelly, 14 body, 15 piston plate, 16 barrier film, 17 push pedal, 18 transfer lines, 19 circulation holes, 20 cement thick liquids.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Referring to fig. 1 to 6, the present invention provides a technical solution:
the first embodiment is as follows:
a foundation structure of a motor group comprises a foundation base 1, in the embodiment, the foundation base 1 can be made of concrete or can be made by shaping through concrete, reinforcing steel bars and the like, the foundation base 1 has a certain weight, so that the center of gravity of the whole foundation structure is at a lower position, a mounting groove 101 is formed in the top of the foundation base 1, an outer steel pipe pile 2 is arranged in the mounting groove 101 in a clamping and embedding manner, inevitably, gaps exist between the outer steel pipe pile 2 and the mounting groove 101 and can be filled with concrete subsequently, the outer steel pipe pile 2 and the foundation base 1 are solidified into a whole, the contact area between the outer steel pipe pile 2 and the foundation base is larger, the connection is firmer, a plurality of positioning holes 201 are formed in the side surface of the outer steel pipe pile 2, the positioning holes 201 can be arranged at equal intervals or at non-equal intervals, a grouting hole 202 is formed in the bottom wall of the outer steel pipe pile 2, the inner steel pipe pile 3 is inserted into the outer steel pipe pile 2, the bottom of the inner steel pipe pile 3 is provided with the tapered part 301, therefore, when the inner steel pipe pile 3 sinks in the outer steel pipe pile 2 for installation, the tapered part 301 can push the push block 10 to enable the push block 10 to be extruded inwards, a grouting channel 302 is arranged in the inner steel pipe pile 3 and the tapered part 301, the grouting channel 302 is linear, cement slurry 20 can be guided downwards quickly, the problem that the cement slurry 20 is not uniformly filled and has blind areas is avoided, the positioning part 4 is embedded in the positioning hole 201 and used for limiting the inner steel pipe pile 3, the arrangement enables the inner steel pipe pile 3 to be installed and before the cement slurry 20 is poured and formed, the inner steel pipe pile 3 does not need to be always hung through other hoisting equipment, the usage amount of the equipment is reduced, and the cost is reduced, the positioning member 4 is provided with a slot 401, and the slot 401 is mainly used for accommodating the upper closing plate 12 and the clamping rod 13 at the bottom thereof.
The outer steel pipe pile 2 is respectively provided with a lower holding groove 2011 and an upper holding groove 2012 at two sides of the positioning hole 201, the upper holding groove 2012 is located at the uppermost side, the upper holding groove 2012, the positioning hole 201 and the lower holding groove 2011 are sequentially arranged and communicated, the lower holding groove 2011 is movably provided with a lower closing plate 6, a first spring 7 is connected between the bottom of the lower closing plate 6 and the bottom of the lower holding groove 2011, in an initial state, the lower closing plate 6 can be jacked upwards by the first spring 7, so that the lower closing plate 6 is partially pushed into the positioning hole 201, a fixed block 8 is fixedly arranged in the upper holding groove 2012, the fixed block 8 is provided with a second spring 9, the second spring 9 has good telescopic elasticity, one end of the second spring 9, which is far away from the fixed block 8, is connected with a push block 10, in the embodiment, the push block 10 is trapezoidal and is matched with a conical part 301 at the bottom of the inner steel pipe pile 3, when the inner steel pipe pile 3 sinks in the outer steel pipe pile 2, the pushing block 10 is pressed downwards through the conical part 301, so that the pushing block 10 moves upwards in the accommodating groove 2012 and further extrudes the second spring 9, one side of the pushing block 10, which is close to the fixing block 8, is connected with a connecting rope 11, the connecting rope 11 is an inelastic rope and has a good transmission effect, the bottom of the connecting rope 11 is connected with an upper closing plate 12, a pipe body 14 is fixedly arranged in the upper accommodating groove 2012, in the embodiment, the pipe body 14 is a hard pipeline with a C-shaped side surface, a piston plate 15 is movably arranged in the pipe body 14, the piston plate 15 can move along the inner wall of the pipe body 14 when being pushed, a barrier film 16 is fixedly arranged in the pipe body 14, in the embodiment, a pipe cavity between the piston plate 15 and the barrier film 16 is filled with sealing liquid, a gap between the inner steel pipe pile 3 and the outer steel pipe pile 2 can be filled, and the foundation structure is prevented from being used for a long time, the situation that the foundation base 1 is eroded due to water seepage at the gap is caused, a push plate 17 is fixedly arranged at the bottom of a push block 10, a transmission rod 18 is fixedly arranged on one side, close to a piston plate 15, of the push plate 17, when the push block 10 is pushed inwards, the push plate 17 drives the transmission rod 18, the transmission rod 18 pushes the piston plate 15 inwards again, the pressure in a pipe cavity is increased until the pressure exceeds the tolerance value of a barrier film 16, the barrier film 16 breaks, a circulation hole 19 is formed in the outer wall of an upper accommodating groove 2012 of an outer steel pipe pile 2, the circulation hole 19 is communicated with a pipe body 14, finally, sealing liquid flows out of the circulation hole 19, filling is carried out between the inner steel pipe pile 3 and the outer steel pipe pile 2, the operation can be carried out spontaneously, the construction period can be effectively saved, and the construction process is simpler.
Example two:
a foundation structure of a motor group comprises a foundation base 1, in the embodiment, the foundation base 1 can be made of concrete or can be made by shaping through concrete, reinforcing steel bars and the like, the foundation base 1 has a certain weight, so that the center of gravity of the whole foundation structure is at a lower position, the top of the foundation base 1 is provided with a mounting groove 101, an outer steel pipe pile 2 is embedded in the mounting groove 101, inevitably, gaps exist between the outer steel pipe pile 2 and the mounting groove 101 and can be subsequently filled with concrete, so that the outer steel pipe pile 2 and the foundation base 1 are solidified into a whole, the side surface of the outer steel pipe pile 2 is provided with a plurality of positioning holes 201, the positioning holes 201 can be arranged at equal intervals or non-equal intervals, the bottom wall of the outer steel pipe pile 2 is provided with grouting holes 202 mainly used for circulating cement slurry 20, the bottom of the outer steel pipe pile 2 is fixedly provided with an extending column 203, the extension column 203 is embedded at the bottom of the installation groove 101, in this embodiment, the outer steel pipe pile 2 and the extension column 203 at the bottom are integrally formed, such a setting mode can increase the contact range between the outer steel pipe pile 2 and the foundation base 1, so that the connection is more stable after installation, the inner steel pipe pile 3 is inserted in the outer steel pipe pile 2, and the bottom of the inner steel pipe pile 3 is provided with a taper 301, so that when the inner steel pipe pile 3 sinks in the outer steel pipe pile 2, the taper 301 can push the push block 10, so that the push block 10 is pushed inwards to move, the inner steel pipe pile 3 and the taper 301 thereof are provided with a grouting channel 302, the grouting channel 302 is linear, so that the cement slurry 20 can rapidly flow downwards, the problems of uneven filling and blind areas of the cement slurry 20 are also avoided, the inner steel pipe pile 3 is provided with a widening portion 303, the widening portion 303 is communicated with the grouting channel 302, the widening part 303 is arranged at one end of the grouting channel 302 far away from the tapered part 301, the arrangement of the widening part 303 enables cement slurry 20 to be better guided into the grouting channel 302, the cement slurry 20 is prevented from overflowing in the pouring process, a positioning part 4 is arranged in the positioning hole 201 in a clamping and embedding manner and used for limiting the position of the inner steel pipe pile 3, the arrangement enables the inner steel pipe pile 3 to be free of always hanging the inner steel pipe pile 3 through other hoisting equipment after installation and before the cement slurry 20 is poured and formed, the using amount of the equipment is further reduced, the cost is reduced, the positioning part 4 is provided with a slot 401 which is mainly used for accommodating an upper sealing plate 12 and a clamping rod 13 at the bottom of the upper sealing plate, a backfill soil layer 5 is embedded outside the foundation base 1 and at the bottom of the outer steel pipe pile 2, the backfill soil layer 5 is soil dug during original excavation, the backfill arrangement not only solves the problem of soil treatment, but also can further fix the foundation base 1 and the outer steel pipe pile 2, so that the overall basic structure is more stable.
The outer steel pipe pile 2 is respectively provided with a lower accommodating groove 2011 and an upper accommodating groove 2012 at two sides of the positioning hole 201, the upper accommodating groove 2012 is located at the uppermost side, the upper accommodating groove 2012, the positioning hole 201 and the lower accommodating groove 2011 are sequentially communicated, the lower accommodating groove 2011 is movably provided with a lower sealing plate 6, a first spring 7 is connected between the bottom of the lower sealing plate 6 and the bottom of the lower accommodating groove 2011, in an initial state, the lower sealing plate 6 can be jacked upwards by the first spring 7, so that the lower sealing plate 6 is partially pushed into the positioning hole 201, a fixed block 8 is fixedly arranged in the upper accommodating groove 2012, the fixed block 8 is provided with a second spring 9, the second spring 9 has good telescopic elasticity, one end of the second spring 9, which is far away from the fixed block 8, is connected with a push block 10, in the embodiment, the push block 10 is trapezoidal and is matched with a conical part 301 at the bottom of the inner steel pipe pile 3, when the inner steel pipe pile 3 sinks in the outer steel pipe pile 2, the pushing block 10 is pressed downwards through the conical part 301, so that the pushing block 10 moves upwards in the accommodating groove 2012 and further extrudes the second spring 9, one side of the pushing block 10, which is close to the fixing block 8, is connected with a connecting rope 11, the connecting rope 11 is an inelastic rope and has a good transmission effect, the bottom of the connecting rope 11 is connected with an upper closing plate 12, a pipe body 14 is fixedly arranged in the upper accommodating groove 2012, in the embodiment, the pipe body 14 is a hard pipeline with a C-shaped side surface, a piston plate 15 is movably arranged in the pipe body 14, the piston plate 15 can move along the inner wall of the pipe body 14 when being pushed, a barrier film 16 is fixedly arranged in the pipe body 14, in the embodiment, a pipe cavity between the piston plate 15 and the barrier film 16 is filled with sealing liquid, a gap between the inner steel pipe pile 3 and the outer steel pipe pile 2 can be filled, and the foundation structure is prevented from being used for a long time, because this gap infiltration leads to the situation that basic base 1 is corroded to take place, the fixed push pedal 17 that is provided with in bottom of ejector pad 10, push pedal 17 is close to the fixed transfer line 18 that is provided with of one side of piston plate 15, when ejector pad 10 was promoted inwards, it can drive transfer line 18 through push pedal 17, transfer line 18 promotes piston plate 15 inwards again, make the pressure in the lumen increase, after exceeding barrier film 16's tolerance value, barrier film 16 appears breaking, outer steel pipe pile 2 has seted up circulation hole 19 on the outer wall of upper holding tank 2012, and circulation hole 19 is linked together with body 14, finally, sealing liquid flows out from circulation hole 19, fill between inner steel pipe pile 3 and outer steel pipe pile 2, this operation can be carried out voluntarily, can save the time limit for a project effectively, the work progress is simpler.
Example three:
in this embodiment, on the basis of the first and second embodiments, the following structures are added: lower shrouding 6 has been seted up draw-in groove 601 near one side of last holding tank 2012, goes up the fixed kelly 13 that is provided with in bottom of shrouding 12, and kelly 13 and draw-in groove 601's shape, size are the same completely, when the installation, and the kelly 13 of going up shrouding 12 bottom can insert and establish in draw-in groove 601 to this realizes better sealed effect, avoids during rainwater among the external environment gets into locating hole 201, and then effectively protects interior steel-pipe pile 3.
Example four:
this embodiment is similar to the first and second embodiments, and the only difference is that in this embodiment: what fill in the lumen between piston plate 15 and barrier film 16 is rust-resistant liquid, or is the mixed reagent of sealing liquid and rust-resistant liquid, from this, rust-resistant liquid can coat the surface of interior steel-pipe pile 3, avoids interior steel-pipe pile 3 to appear the corrosion damage, and then ensures its intensity for the holistic life of foundation structure is longer.
A construction method of a foundation structure based on a motor set comprises the following steps:
the method comprises the following steps: the method comprises the following steps of digging out surface soil, clearing the open ground, placing a foundation base 1, wherein the foundation base 1 can be made of concrete or can be made by shaping through concrete, reinforcing steel bars and the like, and the foundation base 1 has certain weight, so that the center of gravity of the whole foundation structure is located at a lower position, is not prone to overturning and is more stable;
step two: hoisting the outer steel pipe pile 2 to enable the outer steel pipe pile 2 to be embedded in the installation groove 101 of the foundation base 1 in a clamping mode, and therefore installing and positioning the outer steel pipe pile 2;
step three: according to the total height of the foundation structure, a positioning element 4 is installed in a positioning hole 201 of a corresponding outer steel pipe pile 2, in the step, before the positioning element 4 is installed, a lower sealing plate 6 in the positioning hole 201 needs to be pressed downwards, so that a first spring 7 is in a compressed state, then the positioning element 4 is placed in the positioning hole 201, a slot 401 is formed in the positioning element 4, and the slot 401 can accommodate an upper sealing plate 12 and a clamping rod 13 at the bottom of the upper sealing plate 12, so that subsequent installation is facilitated;
step four: the inner steel pipe pile 3 is inserted into the outer steel pipe pile 2, the inner steel pipe pile 3 is limited by the positioning piece 4 at the moment, and the installation position of the inner steel pipe pile 3 is limited, so that the inner steel pipe pile 3 does not need to be always hung through other hoisting equipment after the inner steel pipe pile 3 is installed and before the cement slurry 20 is poured and formed, the use amount of the equipment can be reduced, and the cost is reduced;
step five: pouring cement slurry 20 into the grouting channel 302 of the inner steel pipe pile 3 until the cement slurry 20 is filled in the grouting channel 302 and the inner cavity of the outer steel pipe pile 2, filling the gap of the outer steel pipe pile 2 in the installation groove 101 with the cement slurry 20, and after the cement slurry 20 is solidified, forming the foundation base 1, the outer steel pipe pile 2, the inner steel pipe pile 3 and the positioning piece 4 into a whole, so that the firmness is higher, and the wind resistance is higher;
step six: backfilling the soil excavated in the first step to form a backfill soil layer 5, covering the whole foundation base 1 and the bottom of the outer steel pipe pile 2 by the backfill soil layer 5, and solving the problem of soil treatment by backfilling, and further fixing the foundation base 1 and the outer steel pipe pile 2 to ensure that the whole foundation structure is more stable.
The working principle is as follows:
in the process of constructing and installing the foundation structure of the motor group, when the inner steel pipe pile 3 is installed in the outer steel pipe pile 2 in a sinking manner, the conical part 301 at the bottom of the inner steel pipe pile 3 can be pressed down to the push block 10, so that the push block 10 is pushed to the inside of the upper accommodating groove 2012, the second spring 9 is compressed at the moment, the upper closing plate 12 connected with the push block 10 through the connecting rope 11 descends, and the clamping rod 13 at the bottom of the upper closing plate 12 is clamped and embedded in the clamping groove 601 formed in the lower closing plate 6, so that the positioning hole 201 is blocked, rain and snow in the external environment are prevented from contacting the inner steel pipe pile 3 through the positioning hole 201, the corrosion and the aging of the inner steel pipe pile 3 are delayed, and the inner steel pipe pile 3 is more durable; meanwhile, in the process that the push block 10 is pushed inwards, the push plate 17 and the transmission rod 18 are driven to move along with the push block, the transmission rod 18 extrudes the piston plate 15 inwards, the pressure on the barrier film 16 is increased, the barrier film 16 is broken after the pressure exceeds the tolerance value of the barrier film 16, functional liquid such as sealing liquid or antirust liquid and the like stored between the piston plate 15 and the barrier film 16 flows out, the antirust liquid can coat and protect the surface of the inner steel pipe pile 3, and the sealing liquid can fill and seal a gap between the inner steel pipe pile 3 and the outer steel pipe pile 2, so that the whole foundation structure is more stable, firm and durable.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an electrical machinery's foundation structure, includes basic base (1), its characterized in that: the steel pipe pile foundation comprises a foundation base (1), and is characterized in that a mounting groove (101) is formed in the top of the foundation base (1), an outer steel pipe pile (2) is arranged in the mounting groove (101) in a clamping and embedding manner, a plurality of positioning holes (201) are formed in the side face of the outer steel pipe pile (2), a grouting hole (202) is formed in the bottom wall of the outer steel pipe pile (2), an inner steel pipe pile (3) is inserted into the outer steel pipe pile (2), a conical part (301) is formed at the bottom of the inner steel pipe pile (3), a grouting channel (302) is formed in the inner steel pipe pile (3) and the conical part (301), a positioning piece (4) is arranged in the positioning hole (201) in a clamping and embedding manner and used for limiting the inner steel pipe pile (3), and a slot (401) is formed in the positioning piece (4);
the outer steel pipe pile is characterized in that a lower accommodating groove (2011) and an upper accommodating groove (2012) are respectively formed in two sides of a positioning hole (201) of the outer steel pipe pile (2), a lower sealing plate (6) is movably arranged in the lower accommodating groove (2011), a first spring (7) is connected between the bottom of the lower sealing plate (6) and the bottom of the lower accommodating groove (2011), a fixed block (8) is fixedly arranged in the upper accommodating groove (2012), a second spring (9) is arranged on the fixed block (8), a push block (10) is connected to one end, far away from the fixed block (8), of the second spring (9), a connecting rope (11) is connected to one side, close to the fixed block (8), of the push block (10), an upper sealing plate (12) is connected to the bottom of the connecting rope (11), a pipe body (14) is fixedly arranged in the upper accommodating groove (2012), and a piston plate (15) is movably arranged in the pipe body (14), a barrier film (16) is fixedly arranged in the pipe body (14), a push plate (17) is fixedly arranged at the bottom of the push block (10), a transmission rod (18) is fixedly arranged on one side, close to the piston plate (15), of the push plate (17), a circulation hole (19) is formed in the outer wall of the upper accommodating groove (2012) of the outer steel pipe pile (2), and the circulation hole (19) is communicated with the pipe body (14).
2. The infrastructure of an electrical machine set of claim 1, wherein: the bottom of outer steel-pipe pile (2) is fixed and is provided with extension post (203), extension post (203) inlay card sets up the bottom in mounting groove (101).
3. The infrastructure of an electrical machine set of claim 1, wherein: an expanded part (303) is arranged in the inner steel pipe pile (3), the expanded part (303) is communicated with the grouting channel (302), and the widened part (303) is arranged at one end, far away from the conical part (301), of the grouting channel (302).
4. The infrastructure of an electrical machine set of claim 1, wherein: and a backfill soil layer (5) is buried outside the foundation base (1) and at the bottom of the outer steel pipe pile (2).
5. The infrastructure of an electrical machine set of claim 1, wherein: draw-in groove (601) have been seted up to lower shrouding (6) one side near last holding tank (2012), the bottom of going up shrouding (12) is fixed and is provided with kelly (13), kelly (13) and draw-in groove (601) shape, size are the same completely.
6. A construction method of a foundation structure of a motor unit based on any one of claims 1 to 5 is characterized in that: the method comprises the following steps:
the method comprises the following steps: digging out surface soil, cleaning out the empty land, and placing a foundation base (1);
step two: hoisting the outer steel pipe pile (2) to enable the outer steel pipe pile to be embedded in the installation groove (101) of the foundation base (1);
step three: installing a positioning piece (4) in a positioning hole (201) of the corresponding outer steel pipe pile (2) according to the total height of the foundation structure;
step four: the inner steel pipe pile (3) is inserted into the outer steel pipe pile (2), and the inner steel pipe pile (3) is limited by the positioning piece (4);
step five: pouring cement slurry (20) into the grouting channel (302) of the inner steel pipe pile (3) until the cement slurry (20) is filled in the grouting channel (302) and the inner cavity of the outer steel pipe pile (2), filling the outer steel pipe pile (2) with the cement slurry (20) in the gap of the installation groove (101), and waiting for the cement slurry (20) to solidify;
step six: backfilling the soil excavated in the first step to form a backfill soil layer (5), and covering the whole foundation base (1) and the bottom of the outer steel pipe pile (2) by the backfill soil layer (5).
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| CN202210370574.2A CN114687375A (en) | 2022-04-10 | 2022-04-10 | Foundation structure of motor set and construction method thereof |
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| CN202210370574.2A CN114687375A (en) | 2022-04-10 | 2022-04-10 | Foundation structure of motor set and construction method thereof |
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| JP2007009505A (en) * | 2005-06-30 | 2007-01-18 | Taiyo Kiso Kogyo Kk | Foundation reinforcing method |
| CN108867688A (en) * | 2018-07-18 | 2018-11-23 | 上海勘测设计研究院有限公司 | A kind of offshore wind turbine gravity type foundation and its installation method |
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Effective date of registration: 20220801 Address after: 242074 beside Yangxian township government, Xuanzhou District, Xuancheng City, Anhui Province Applicant after: CGN new energy (Xuancheng) Co.,Ltd. Applicant after: CGN new energy Lu'an Co.,Ltd. Address before: 237400 room 815, zone a, Chengguan town government service center, Huoqiu County, Lu'an City, Anhui Province Applicant before: CGN new energy Lu'an Co.,Ltd. |