CN110258541A - A kind of reinforced soft soil ground structure and its reinforcement means - Google Patents
A kind of reinforced soft soil ground structure and its reinforcement means Download PDFInfo
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- CN110258541A CN110258541A CN201910566785.1A CN201910566785A CN110258541A CN 110258541 A CN110258541 A CN 110258541A CN 201910566785 A CN201910566785 A CN 201910566785A CN 110258541 A CN110258541 A CN 110258541A
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- component
- soil
- tubular pole
- outer tube
- inner tube
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
- E02D3/074—Vibrating apparatus operating with systems involving rotary unbalanced masses
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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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
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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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of reinforced soft soil ground structure and its reinforcement means.The ruggedized construction is used to drain the tubular pole of carrying, accelerates the compaction apparatus of soil solidifying above tubular pole and for compacted fill.The tubular pole includes the tip for accelerating into soil body speed, is mounted on the tube body on tip and being located above tip.It is provided with transmission component, the hangnail component below transmission component in the tube body, drives hangnail component to penetrate in the soil body by transmission component, increases the contact area of tubular pole and soft soil foundation, improve the resistance to plucking of tubular pole.The compaction apparatus includes column, removably mounts within the compacting component on column, and compacting component generates consolidation effect to the soil body in the vibration of Z-direction.Present invention is specifically directed to soft soil foundation, consolidation effect is good, construction is simple, at low cost.
Description
Technical field
The present invention relates to basement process engineering device technique fields, and in particular to a kind of reinforced soft soil ground structure and its reinforcing side
Method.
Background technique
Weak soil, which refers to, to be deposited in hydrostatic or slow flowing water environment, is based on sticking grain and heavy with the modern age of microbial action
Product object.Weak soil is a kind of in soft modeling to liquid-plastic state, fine grained soil of the appearance based on grey.It is widely distributed, is distributed mostly
Compare the place of concentration in the distribution of the water conservancy constructions such as seashore, river shoal, marsh and lake.Soft soil foundation is to mix silt and powder
The substances such as sand make ground as main component, since quality plasticity is strong, relatively soft, so its bearing capacity will compare
It is weak, the characteristics of this is soft soil foundation.
With the continuous development of infrastructure construction in china, a large amount of architectural engineering, road are built on soft soil foundation
Engineering, hydraulic engineering etc., the location of soft soil foundation have the characteristics that void ratio is big, moisture content is high, sedimentation is big, need to weak soil
Base is constructed again after reinforcing, and the processing quality of soft soil foundation is the key that guarantee that engineering builds up rear safe and efficient operation.It is existing soft
Native method for processing foundation often uses accumulation load method, and accumulation load method needs a large amount of heap carrier materials and a large amount of mechanical equipment, that there are costs is high,
Constructional difficulties, construction site interfere big disadvantage, while the structural soundness after reinforcing is bad.
Summary of the invention
The invention discloses a kind of reinforced soft soil ground structures to be located above tubular pole including the tubular pole for draining carrying
And accelerate the compaction apparatus of soil solidifying for compacted fill.
Tubular pole includes the tip for accelerating into soil body speed, is mounted on the tube body on tip and being located above tip.
Compaction apparatus includes column, removably mounts within the compacting component on column.
A kind of preferred reinforced soft soil ground structure disclosed by the invention, it is characterised in that: tube body includes inner tube, is set in
The concentric outer tube in inner tube and with inner tube；
Upper end of inner tube is provided with transmission component, and transmission component includes the fixed plate of installation on the inner cylinder, is located under fixed plate
The connecting plate of side is threadedly coupled with fixed plate, lower end is mounted on drive rod on connecting plate by rolling bearing, mobile installation
In fixed plate and lower end be mounted on connecting plate, the guide rod positioned at drive rod two sides；
Be provided with the hangnail component below the transmission component and being mounted on connecting plate in inner tube, hangnail component include by
Parallelogram component made of four connecting rods are hinged is mounted on parallelogram component and positioned at parallelogram or so two
End, the translation bar with horizontal plane are mounted on parallelogram component hinge joint by pin shaft and are located at parallelogram structure
Two sides, the drive rod with horizontal plane above and below part.
Translation bar passes through support base and can move in X direction in support base, and support base is mounted on the inner tube；Support rod peace
On translation bar, it is equipped on support rod and multiple are uniformly arranged along Z-direction and pass through inner tube, can be moved in X direction in inner tube
Dynamic hangnail bar.
Drive rod passes through guide holder and can move in guide holder along Z-direction, and guide holder is mounted on the inner tube.
The contact area for increasing tubular pole and soft soil foundation by hangnail component, improves the resistance to plucking of tubular pole, avoids tubular pole sliding
Soft soil foundation out.
A kind of preferred reinforced soft soil ground structure disclosed by the invention, it is characterised in that: outer tube is in blocking up and down
Hollow structure, outer tube upper end are provided with the exhaust outlet for pumping, the discharge outlet for drawing water, the perfusing hole for pouring cement.
Z-direction is provided with the multiple and one-to-one through-hole A of hangnail bar on outer tube external cylindrical surface；Along Z-direction on outer tube inner cylinder face
It is provided with the multiple and one-to-one through-hole B of hangnail bar, sealing film is provided on outer tube inner cylinder face, sealing film seals through-hole B
It is stifled.The cavity that outer tube can be made to form opposing seal by sealing film also guarantees that hangnail bar can penetrate sealing film, pass through through-hole
A, through-hole B enters in the soil body.
Exhaust tube one end is mounted on vacuum pump, and the other end is mounted on bleeding point.It will be taken out in outer tube by vacuum pump true
Sky forms pressure difference between the soil body and outer tube, penetrates into the water in soil layer in outer tube by through-hole A；
Drinking-water pipe one end is mounted on suction pump, and the other end is mounted in pump mouth.It will be entered in outer tube by suction pump
Soft soil foundation water is constantly extracted out, reinforces soft soil foundation effectively.
A kind of preferred reinforced soft soil ground structure disclosed by the invention, it is characterised in that: compacting component includes body frame, position
Below body frame and it is mounted on the squeeze board on body frame；Squeeze board lower end surface center position is equipped with isolation channel；
The driving motor hinged with body frame, driving motor are twin shaft electricity indirectly above squeeze board and through mounting rod
Machine, driving motor drive power wheel rotation, and the angle between two power wheels is 0 ° and synchronizes always during the motion；Spring
It is at left and right sides of driving motor and indirectly hinged with motor, body frame by mounting blocks；Power wheel institute is 180 ° to central angle.
It is rotated by the power wheel that two angles are 0 ° and central angle is 180 ° with driving motor, forms centrifugal force, driving
It is compacted the vibration that component generates Z-direction, to generate consolidation effect to the soil body.
The invention also discloses a kind of methods of reinforced soft soil ground comprising following steps:
S1: tubular pole is pressed into the specified soil layer of soft soil foundation by pile driving equipment；
S2: the air in outer tube is extracted out using vacuum pump, forms pressure difference, the water in soil layer penetrates into tubular pole by through-hole A
It is interior；The water poured in outer tube is discharged suction pump, plays preliminary reinforcement effect to soft soil foundation；
S3: while S2 work, squeeze board is constantly compacted the soil body around tubular pole, increases soil permeability,
Suction pump is cooperated to accelerate soil solidifying；
S4: when the water that suction pump is released is fewer and fewer, drive rod is rotated, makes drive rod that connecting plate be driven to transport downwards
Dynamic, parallelogram element structure changes, and translation bar move to close to outer tube direction, hangnail bar across inner tube, through-hole A,
Through-hole B is protruded into the soil body；Then the cement injection into tubular pole, inner tube, outer tube form armored concrete knot by hangnail bar, cement
Structure, intensity, anti-shear performance, stability, the carrying stress of tubular pole greatly enhance.
The present invention overcomes the deficiencies in the prior art, provide a kind of structure dedicated for reinforced soft soil ground, the knot
Structure consolidation effect is good, construction is simple, at low cost.
Detailed description of the invention
Fig. 1 is main view of the present invention；
Fig. 2 is tubular pole cross-sectional view of the present invention；
Fig. 3 is part A enlarged drawing in Fig. 2；
Fig. 4 is tubular pole top view of the present invention；
Fig. 5 is structural schematic diagram when hangnail bar of the present invention protrudes into the soil body；
Fig. 6 is that present invention translation bar and support base cooperation are schemed；
Fig. 7 is that drive rod of the present invention and guide holder cooperation are schemed；
Fig. 8 is present invention compacting component main view；
Fig. 9 is present invention compacting assembly plan view.
It is marked in figure as follows:
100- tubular pole, 101- tip, 102- tube body, 103- inner tube, 104- outer tube, 105- transmission component, 106- fixed plate,
107- connecting plate, 108- drive rod, 109- guide rod, 110- hangnail component, 112- parallelogram component, 113- support rod,
114- drive rod, 115- hangnail bar, 116- guide holder, 117- support base, 118- through-hole A, 119- through-hole B, 120- sliding slot A,
121- sliding block A, 122- sliding slot B, 123- slide block B, 124- exhaust outlet, 125- discharge outlet, 126- perfusing hole, 127- translate bar.
200- compaction apparatus, 201- column, 202- compacting component, 203- body frame, 204- squeeze board, 205- isolation channel,
206- driving motor, 207- power wheel, 208- mounting rod, 209- spring, 210- mounting blocks.
300- vacuum pump.400- suction pump.500- exhaust tube.600- drinking-water pipe.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further illustrated.
As shown in Figure 1, a kind of reinforced soft soil ground structure is located at tubular pole 100 including the tubular pole 100 for draining carrying
Top and the compaction apparatus 200 for accelerating soil solidifying for compacted fill.
As shown in Fig. 2, Fig. 4, Fig. 5, tubular pole 100 includes the tip 101 for accelerating into soil body speed, is mounted on tip
Tube body 102 on 101 and positioned at 101 top of tip；
Tube body 102 includes inner tube 103, is set in the outer tube 104 concentric in inner tube 103 and with inner tube 103.
103 upper end of inner tube is provided with transmission component 105, and transmission component 105 includes the transmission component of installation on the inner cylinder
106, the connecting plate 107 positioned at 106 lower section of transmission component is threadedly coupled with transmission component 106, lower end is installed by rolling bearing
Drive rod 108 on connecting plate 107, it is mobile be mounted on transmission component 106 and lower end be mounted on connecting plate 107, position
Guide rod 109 in 108 two sides of drive rod.
It is provided in inner tube 103 positioned at the hangnail component 110 transmission component 105 lower section and be mounted on connecting plate 107,
Thorn component 110 be Steel material, hangnail component 110 include as four connecting rods it is hinged made of parallelogram component 112, be mounted on
On parallelogram component 112 and it is located at parallelogram left and right ends, the translation bar 127 with horizontal plane, passes through pin shaft
It is mounted on 112 hinge joint of parallelogram component and is located at about 112 two sides of parallelogram component, the drive with horizontal plane
Lever 114.
Multiple sliding slots being axially distributed around translation 127 central axis of bar are provided on translation bar 127 as shown in Figure 6
A120, is provided on support base 117 and the mutually matched sliding block A121 of sliding slot A120, sliding block A121 are inserted into sliding slot A120, translation
Bar 127 passes through support base 117 and can be mobile in X-direction, and support base 117 is mounted in inner tube 103；
Mounting rod 208 is mounted on translation bar 127, is equipped on mounting rod 208 and multiple are uniformly arranged and pass through along Z-direction
Inner tube 103, the hangnail bar 115 that can be moved in X direction in inner tube 103.
As shown in fig. 7, being provided with multiple sliding slots being axially distributed around 114 central axis of drive rod on drive rod 114
B122, is provided on guide holder 116 and the mutually matched slide block B 123 of sliding slot B122, slide block B 123 are inserted into sliding slot B122, driving
Bar 114 passes through guide holder 116 and can be mobile in Z-direction, and guide holder 116 is mounted in inner tube 103.
Increase the contact area of tubular pole 100 and soft soil foundation by hangnail component 110, improves the resistance to plucking of tubular pole 100, keep away
Exempt from tubular pole 100 and skids off soft soil foundation.It is that hangnail component 110 provides the power of movement using transmission component 105, rotates drive rod
108, drive rod 108 drives connecting plate 107 to move in Z-direction, and two drive rods 114 make parallel four side in Z-direction counter motion
Shape structure changes, and drives hangnail bar 115 in X-direction counter motion, completes the movement that hangnail bar 115 penetrates the soil body.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, outer tube 104 is the hollow structure blocked up and down, and the setting of 104 upper end of outer tube is useful
In the exhaust outlet 124 of pumping, the discharge outlet 125 for drawing water, the perfusing hole 126 for pouring cement.104 external cylindrical surface of outer tube
On be provided with along Z-direction it is multiple with the one-to-one through-hole A118 of hangnail bar 115；It is arranged on 104 inner cylinder face of outer tube along Z-direction
There is the multiple and one-to-one through-hole B119 of hangnail bar 115, sealing film is provided on 104 inner cylinder face of outer tube, sealing film will lead to
Hole B119 is blocked.The cavity that outer tube 104 can be made to form opposing seal by sealing film also guarantees that hangnail bar 115 can penetrate
Film is sealed, is entered in the soil body across through-hole A118, through-hole B119.
500 one end of exhaust tube is mounted on vacuum pump 300, and the other end penetrates in outer tube 104.It will be outer by vacuum pump 300
It is vacuumized in pipe 104, forms pressure difference between the soil body and outer tube 104, the water in soil layer is made to penetrate into outer tube by through-hole A118
In 1041；
600 one end of drinking-water pipe is mounted on suction pump 400, and the other end penetrates in outer tube 104.It will be by suction pump 400
Enter soft soil foundation water in outer tube 104 constantly to extract out, reinforces soft soil foundation effectively.
As shown in Figure 8, Figure 9, compaction apparatus 200 includes column 201, and sliding rail is equipped on column 201, is compacted component 202
It installs on the slide rail at both ends.
Being compacted component 202 includes body frame 203, positioned at the squeeze board 204 body frame 203 lower section and be mounted on body frame 203；Pressure
204 lower end surface center position of solid plate is equipped with isolation channel 205；When 204 compacted fill of squeeze board, tubular pole 100 is located at isolation channel 205
It is interior, it avoids squeeze board 204 from damaging tubular pole 100, guarantees that the stress of squeeze board 204 concentrates on the soil body, the soil body is carried out
Effective Compaction.
Driving motor 206 is located at 204 top of squeeze board and, driving electricity indirectly hinged with body frame 203 by mounting rod 208
Machine 206 is dual-axle motor, and driving motor 206 drives power wheel 207 to rotate, the angle between two power wheels 207 be 0 ° and
It is synchronized always in motion process；Spring 209 be located at the left and right sides of driving motor 206 and by mounting blocks 210 indirectly with motor,
Body frame 203 is hinged；Power wheel 207 to central angle be 180 °.
It is rotated by the power wheel 207 that two angles are 0 ° and central angle is 180 ° with driving motor 206, forms centrifugation
Power, driving compacting component 202 generates the vibration of Z-direction, to generate consolidation effect to the soil body.
The stress that Z-direction will be generated in the soil body by compacting component 202 is pressed repeatedly using compacting component 202 and hits soil layer
Surface generates impact energy in soft soil foundation, forms dynamic stress, while being compacted component 202 and rubbing with soil layer, and soil particle moves
Part impact energy is converted thermal energy by frictional heat generation during dynamic, accelerates the gas release in soft soil foundation, subtracts soil body volume
It is small, resistance when pore water movement is reduced, soil body permeability is increased, cooperation suction pump 400 accelerates soil solidifying.
The reinforcement means of disclosure of the invention, steps are as follows:
S1: tubular pole is pressed into the specified soil layer of soft soil foundation by pile driving equipment；
S2: the air in outer tube is extracted out using vacuum pump, forms pressure difference, the water in soil layer penetrates into tubular pole by through-hole A
It is interior；The water poured in outer tube is discharged suction pump, plays preliminary reinforcement effect to soft soil foundation；
S3: while S2 work, squeeze board is constantly compacted the soil body around tubular pole, increases soil permeability,
Suction pump is cooperated to accelerate soil solidifying；
S4: when the water that suction pump is released is fewer and fewer, drive rod is rotated, makes drive rod that connecting plate be driven to transport downwards
Dynamic, parallelogram element structure changes, and translation bar move to close to outer tube direction, hangnail bar across inner tube, through-hole A,
Through-hole B is protruded into the soil body；Then the cement injection into tubular pole, inner tube, outer tube form armored concrete knot by hangnail bar, cement
Structure, intensity, anti-shear performance, stability, the carrying stress of tubular pole greatly enhance.
Many other changes and remodeling can be made by not departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not
It is limited to specific embodiment, the scope of the present invention is defined by the following claims.
Claims (6)
1. a kind of reinforced soft soil ground structure, it is characterised in that: including the tubular pole (100) for draining carrying, be located at tubular pole
(100) top and the compaction apparatus (200) for compacted fill acceleration soil solidifying；
Tubular pole (100) includes for accelerating into the tip of soil body speed (101), being mounted on tip (101) and being located at tip
(101) tube body (102) above；
Compaction apparatus (200) includes column (201), removably mounts within the compacting component (202) on column (201).
2. a kind of reinforced soft soil ground structure as described in claim 1, it is characterised in that: the tube body (102) includes inner tube
(103), it is set in the outer tube (104) concentric on inner tube (103) and with inner tube (103)；
Inner tube (103) upper end is provided with transmission component (105), and transmission component (105) includes the fixed plate of installation on the inner cylinder
(106), the connecting plate (107) being located at below fixed plate (106), is threadedly coupled, lower end passes through rolling bearing with fixed plate (106)
The drive rod (108) being mounted on connecting plate (107), it is mobile to be mounted on fixed plate (106) and lower end is mounted on connecting plate
(107) guide rod (109) on, positioned at drive rod (108) two sides；
The hangnail component below transmission component (105) and being mounted on connecting plate (107) is provided in inner tube (103)
(110), hangnail component (110) include as four connecting rods it is hinged made of parallelogram component (112), be mounted on parallel four side
On shape component (112) and it is located at parallelogram left and right ends, the translation bar (127) with horizontal plane, is installed by pin shaft
Parallelogram component (112) hinge joint and be located at parallelogram component (112) up and down two sides, with the drive of horizontal plane
Lever (114)；
Translation bar (127) passes through support base (117) and can move in X direction in support base (117), support base (117) installation
On inner tube (103)；Mounting rod (208) is mounted in translation bar (127), is equipped on mounting rod (208) multiple equal along Z-direction
Even setting and the hangnail bar (115) that passes through inner tube (103), can be moved in X direction in inner tube (103)；
Drive rod (114) passes through guide holder (116) and can move in guide holder (116) along Z-direction, guide holder (116) installation
On inner tube (103).
3. a kind of reinforced soft soil ground structure as claimed in claim 2, it is characterised in that: the outer tube (104) is to seal up and down
Stifled hollow structure, outer tube (104) upper end be provided with the exhaust outlet (124) for pumping, the discharge outlet (125) for drawing water,
For pouring the perfusing hole (126) of cement；
Z-direction is provided with multiple and hangnail bar (115) one-to-one through-hole A (118) on outer tube (104) external cylindrical surface；Outside
Z-direction is provided with multiple and hangnail bar (115) one-to-one through-hole B (119), outer tube (104) on pipe (104) inner cylinder face
Sealing film is provided on inner cylinder face, sealing film blocks through-hole B (119).
4. a kind of reinforced soft soil ground structure as claimed in claim 3, it is characterised in that: exhaust tube (500) one end peace
On vacuum pump (300), the other end is mounted on bleeding point；
Drinking-water pipe (600) one end is mounted on suction pump (400), and the other end is mounted in pump mouth.
5. a kind of reinforced soft soil ground structure as described in claim 1, it is characterised in that: the compacting component (202) includes
Body frame (203) is located at the squeeze board (204) below body frame (203) and being mounted on body frame (203)；Squeeze board (204) lower end surface
Center position is equipped with isolation channel (205)；
Above the squeeze board (204) and pass through the mounting rod driving motor (206) hinged with body frame (203) indirectly, driving
Motor (206) is dual-axle motor, and driving motor (206) drives power wheel (207) rotation, the folder between two power wheels (207)
Angle is 0 ° and synchronizes always during the motion；Spring (209) is located at left and right sides of driving motor (206) and passes through mounting blocks
(210) indirectly hinged with motor, body frame (203)；Power wheel (207) institute is 180 ° to central angle.
6. a kind of method using ruggedized construction reinforcing soft ground as described in claim 1: the following steps are included: S1: logical
It crosses pile driving equipment tubular pole (100) is pressed into the specified soil layer of soft soil foundation；
S2: the air in outer tube (104) is extracted out using vacuum pump (300), forms pressure difference, the water in soil layer passes through through-hole A
(118) it penetrates into tubular pole (100)；Suction pump (400) will pour in the discharge of the water in outer tube (104)；
S3: while S2 work, squeeze board (204) is constantly compacted the soil body around tubular pole (100), cooperates suction pump
(400) accelerate soil solidifying；
S4: when the water that suction pump (400) is released is fewer and fewer, rotating drive rod (108), drives drive rod (108) and connects
Fishplate bar (107) moves downward, and parallelogram component (112) structure changes, and translation bar (127) is to close to outer tube (104)
Direction movement, hangnail bar (115) protrude into the soil body across inner tube (103), through-hole A (118), through-hole B (119)；Then to tubular pole
(100) interior cement injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566785.1A CN110258541B (en) | 2019-06-27 | 2019-06-27 | Soft soil foundation reinforcing structure and reinforcing method thereof |
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| CN201910566785.1A CN110258541B (en) | 2019-06-27 | 2019-06-27 | Soft soil foundation reinforcing structure and reinforcing method thereof |
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| CN110258541B CN110258541B (en) | 2021-01-29 |
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| CN111946133A (en) * | 2020-08-24 | 2020-11-17 | 高放 | Lightning protection equipment of photovoltaic grid-connected power generation device |
| CN112058667A (en) * | 2020-09-30 | 2020-12-11 | 萧县禾盛种业有限公司 | Air screen type screening machine for screening rice seeds and using method thereof |
| CN113136864A (en) * | 2021-04-15 | 2021-07-20 | 湖南省湘交建设集团有限公司 | Construction device and construction method for reinforcing soft soil roadbed |
| CN113502803A (en) * | 2021-07-23 | 2021-10-15 | 浙江大学 | Coastal large-area soft foundation reinforcing structure and construction method thereof |
| CN113585225A (en) * | 2021-08-11 | 2021-11-02 | 浙江大学 | Thermal consolidation settlement reinforcing structure and method for soft soil around thermal pipeline |
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| CN112058667A (en) * | 2020-09-30 | 2020-12-11 | 萧县禾盛种业有限公司 | Air screen type screening machine for screening rice seeds and using method thereof |
| CN112058667B (en) * | 2020-09-30 | 2021-11-23 | 萧县禾盛种业有限公司 | Air screen type screening machine for screening rice seeds and using method thereof |
| CN113136864A (en) * | 2021-04-15 | 2021-07-20 | 湖南省湘交建设集团有限公司 | Construction device and construction method for reinforcing soft soil roadbed |
| CN113136864B (en) * | 2021-04-15 | 2022-06-28 | 湖南省湘交建设集团有限公司 | Construction device and construction method for reinforcing soft soil roadbed |
| CN113502803A (en) * | 2021-07-23 | 2021-10-15 | 浙江大学 | Coastal large-area soft foundation reinforcing structure and construction method thereof |
| CN113502803B (en) * | 2021-07-23 | 2022-04-01 | 浙江大学 | Coastal large-area soft foundation reinforcing structure and construction method thereof |
| CN113585225A (en) * | 2021-08-11 | 2021-11-02 | 浙江大学 | Thermal consolidation settlement reinforcing structure and method for soft soil around thermal pipeline |
| CN113605360A (en) * | 2021-08-18 | 2021-11-05 | 浙江大学 | Coastal large-area sludge foundation reinforcing device and process |
| CN113605360B (en) * | 2021-08-18 | 2022-10-04 | 浙江大学 | Coastal large-area sludge foundation reinforcing device and process |
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