CN112411532A - Cement mixing pile carbonization construction device - Google Patents
Cement mixing pile carbonization construction device Download PDFInfo
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- CN112411532A CN112411532A CN202011319251.8A CN202011319251A CN112411532A CN 112411532 A CN112411532 A CN 112411532A CN 202011319251 A CN202011319251 A CN 202011319251A CN 112411532 A CN112411532 A CN 112411532A
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- holes
- vent pipe
- positioning bolt
- cement
- side vent
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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
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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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
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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
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
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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
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a cement-soil mixing pile carbonization construction device which comprises an outer side vent pipe structure, an inner side vent pipe structure, a rubber sealing ring structure, a bolt gasket structure and a bolt structure. According to the invention, carbon dioxide is introduced into the cement soil mixing pile, and the steel pipe is arranged in the pile body, so that the cement soil mixing pile has higher strength in a shorter time, and the construction cost is reduced.
Description
Technical Field
The invention relates to a cement-soil mixing pile carbonization construction device, and belongs to the technical field of cement-soil mixing piles in civil engineering.
Background
With the rapid development of coastal economy in China, the scale of infrastructure construction is gradually enlarged, but available land resources are less and less, and soft soil foundations with lower strength are often encountered in the construction process of buildings. The soft soil foundation has the characteristics of low strength, high compressibility, high natural water content, high disturbance and the like, and uneven settlement and foundation instability often occur in the construction process of roads and buildings, so that great potential safety hazards are caused to the construction safety.
In the prior art, the construction process (CN107938662A) for reinforcing the foundation by using the concrete core soil-cement mixing pile adopts the steps of putting 3 concrete cores into the soil-cement mixing pile and paving a reinforced concrete layer on the top of each concrete core. Although the strength of the cement-soil mixing pile can be improved by adopting the mode, compared with a pure cement-soil mixing pile, the consumption of cement soil is increased, and the manufacturing cost of a single cement-soil mixing pile is increased. And need put into the pile body with 3 concrete cores to reinforced concrete layer all can be laid at every concrete core top, and the construction is comparatively complicated, the time is longer, and can cause the disturbance to the pile body, be unfavorable for construction safety.
In view of the above problems in the process of reinforcing the soil cement mixing pile, a new soil cement mixing pile reinforcing technology is urgently needed to solve the problem. Therefore, the present inventors have conducted further studies to develop a cement mixing pile carbonization construction device, and have resulted from the present invention.
Disclosure of Invention
The invention aims to provide a cement-soil mixing pile carbonization construction device, which has higher strength in a shorter time and reduces construction cost by introducing carbon dioxide into a cement-soil mixing pile and arranging a steel pipe in the pile body.
In order to achieve the above purpose, the invention provides the following technical scheme: a cement-soil mixing pile carbonization construction device comprises:
the outer side vent pipe structure comprises an outer side vent pipe with one closed end and one open end, wherein a plurality of outer side vent holes are formed in the circumferential surface of the outer side vent pipe, and a plurality of outer side positioning bolt holes are formed in the end surface of the open end of the outer side vent pipe;
the inner side vent pipe structure comprises an inner side vent pipe with one closed end and one open end, the outer diameter of the inner side vent pipe is equal to the inner diameter of the outer side vent pipe, the length of the inner side vent pipe is equal to the depth of the outer side vent pipe, the circumferential surface of the inner side vent pipe is provided with inner side vent holes corresponding to the outer side vent holes, and the end surface of the open end of the inner side vent pipe is provided with a plurality of inner side positioning bolt holes;
the sealing rubber ring structure comprises an annular rubber ring, wherein the inner edge of the rubber ring extends outwards along the axial direction to form a cylindrical air source interface, a plurality of outer rubber holes and a plurality of inner rubber holes are respectively formed in the surface of the rubber ring, the outer rubber holes correspond to the outer positioning bolt holes, and the inner rubber holes correspond to the inner positioning bolt holes;
the bolt gasket structure comprises a bolt gasket, wherein a plurality of outer gasket holes and a plurality of inner gasket holes are respectively formed in the bolt gasket, the outer gasket holes correspond to the outer positioning bolt holes, and the inner gasket holes correspond to the inner positioning bolt holes; and
the bolt structure comprises a stud and a nut, the stud can sequentially penetrate through an outer gasket hole or an inner gasket hole, an outer rubber hole or an inner rubber hole and then is in threaded connection with an outer positioning bolt hole or an inner positioning bolt hole, and the nut is in threaded connection with the outer end of the stud and can fasten the bolt gasket and the rubber ring.
Further, the number of outside positioning bolt holes is 8, along outside breather pipe's circumference evenly distributed.
Furthermore, the circumferential distribution positions of the outer vent holes along the outer vent pipe correspond to the distribution of the outer positioning bolt holes one by one.
Furthermore, the distribution positions of the inner positioning bolt holes along the circumferential direction correspond to the distribution of the outer positioning bolt holes one to one.
Further, the inner diameter of the air source interface is equivalent to that of the inner side vent pipe, and the outer diameter of the rubber ring is equivalent to that of the outer side vent pipe.
Further, the inner diameter of the bolt gasket is equivalent to the outer diameter of the air source interface, and the outer diameter of the bolt gasket is equivalent to the outer diameter of the rubber ring.
Furthermore, the ventilation pipe also comprises a hollow cylindrical protective sleeve structure with one closed end and one opened end, and the inner diameter of the protective sleeve structure is equivalent to the outer diameter of the outer side ventilation pipe.
Further, still include fastening neck ring structure, fastening neck ring mechanism includes fastening neck ring and fastening bolt, the fastening neck ring cover is located outside the air supply interface for the fastening is connected with the air supply interface, fastening bolt can adjust the radial dimension of fastening neck ring.
Further, the outer vent hole is comparable in size to the inner vent hole.
Compared with the prior art, the invention has the advantages that:
1. the invention adopts the measure of carbonization and reinforcement, and the cement soil mixing pile has higher strength after being maintained for a shorter age.
2. The invention can increase the strength of the cement soil mixing pile, thereby properly reducing the use of cement and reducing the engineering cost.
3. The invention can reduce the maintenance time of the cement-soil mixing pile and save the time cost.
4. The invention reserves the steel pipe concrete structure in the cement mixing pile, which can further improve the strength.
5. After the grouting is carried out in the steel pipe, cement slurry flows into the pile body through the hole, the occlusal force between the steel pipe and the pile body is increased after the cement slurry is solidified, and the structures are connected with each other to form a unified whole.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention
FIG. 2 is a schematic view of an outside vent tube configuration of the present invention
FIG. 3 is a schematic view of an inboard vent tube configuration of the present invention
FIG. 4 is a schematic view of the structure of the protective sheath of the present invention
FIG. 5 is a schematic view of the structure of the rubber packing of the present invention
FIG. 6 is a schematic view of the bolt washer structure of the present invention
FIG. 7 is a schematic view of the bolt construction of the present invention
Fig. 8 is a schematic view of a fastening collar structure of the present invention
Reference numbers in the figures: 1-outer vent pipe structure, 11 outer vent pipe, 12 outer vent hole and 13 outer positioning bolt hole; 2-inner vent pipe structure, 21 inner vent pipe, 22 inner vent hole, 23 inner positioning bolt hole; 3-a protective sleeve structure; 4-sealing rubber ring structure, 41 rubber ring, 42 outer side rubber hole, 43 inner side rubber hole, 44 air source interface; 5-bolt washer structure, 51 bolt washer, 52 outside washer hole, 53 inside washer hole; 6-bolt structure, 61 stud, 62 nut; 7-fastening collar structure, 71 fastening collar, 72 fastening bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further specifically described below by way of embodiments in combination with the accompanying drawings.
Example (b): the utility model provides a cement mixing pile carbonization construction equipment, refers to fig. 1-8, includes outside breather pipe structure 1, inboard breather pipe structure 2, protective sheath structure 3, rubber seal structure 4, bolt gasket structure 5, bolt structure 6, fastening neck ring structure 7.
The outer vent pipe structure 1 includes an outer vent pipe 11, an outer vent hole 12, and an outer pilot bolt hole 13.
The outer air pipe 11 is a cylindrical hollow pipe with one end closed and the other end provided with a hole. The size is according to the design requirement of the cement mixing pile.
The outer vent hole 12 is a circular hole on the outer vent pipe structure 1. The position is located the side of outside breather pipe structure 1, and 8 each row, even encircle outside breather pipe structure 1 a week to every row is along 1 length direction evenly distributed of outside breather pipe structure. The diameter is designed according to the structural design.
The outer positioning bolt hole 13 is a bolt hole on the outer vent pipe structure 1. The number of the air vents is 8, the positions of the air vents are positioned on the circular surface at one end of the opening of the outer vent pipe structure 1, and the distribution positions of the air vents are in one-to-one correspondence with the distribution of each row of outer vent holes 12. The size is required by the structural design.
The inner vent pipe structure 2 includes an inner vent pipe 21, an inner vent hole 22, and an inner positioning bolt hole 23.
The inner vent pipe 21 is a cylindrical hollow pipe with one end closed and the other end provided with a hole. The outside diameter and length of the pipe are the same as the inside diameter and depth of the outside air duct 11.
The inner vent hole 22 is a circular hole in the inner vent pipe structure 2. The positions are located on the side surface of the inner vent pipe structure 2, the distribution positions correspond to the positions of the outer vent holes 12 on the side surface of the outer vent pipe structure 1 one by one, and the sizes of the outer vent holes 12 are the same.
The inner positioning bolt hole 23 is a bolt hole on the inner vent pipe structure 2. The number is 8, the positions are located on the circular surface at one end of the opening of the inner side vent pipe structure 2, and the distribution in the peripheral direction corresponds to the distribution of the outer side positioning bolt holes 13 one by one. The dimensions are the same as the dimensions of the outboard positioning bolt hole 13.
The protective sleeve structure 3 is a hollow cylindrical structure with one end closed and one end provided with a hole. The inner diameter of which is the same as the outer diameter of the outer vent pipe 11.
The sealing rubber ring structure 4 comprises a rubber ring 41, an outer rubber hole 42 and an inner rubber hole 43.
The rubber ring 41 is annular, the inner edge of the rubber ring extends outwards along the axial direction to form a cylindrical air source interface 44, and the inner diameter of the air source interface 44 is the same as that of the inner side vent pipe 21. The outer diameter of the rubber ring 41 is the same as the outer diameter of the outer vent pipe 11.
The outer rubber hole 42 is a circular hole on the sealing rubber ring structure 4. The number is 8 in total, the position is in the annular outside in rubber circle 41 bottom, with the position one-to-one correspondence of outside positioning bolt hole 13, the size is the same with the size of outside positioning bolt hole 13.
The inner rubber hole 43 is a circular hole on the sealing rubber ring structure 4. The number of the positioning bolts is 8, the positioning bolts are positioned on the inner side of the circular ring shape at the bottom of the rubber ring 41 and correspond to the positioning bolts 23 on the inner side one by one. The dimensions are the same as the dimensions of the inboard positioning bolt hole 23.
The bolt washer structure 5 includes a bolt washer 51, an outer washer hole 52, and an inner washer hole 53.
The bolt washer 51 has a circular ring structure with a certain thickness. The inner diameter of the circular ring is the same as the outer diameter of the air source interface 44 of the rubber ring 41, and the outer diameter of the circular ring is the same as the outer diameter of the circular ring at the bottom of the rubber ring 41.
The outer spacer holes 52 are circular holes in the bolt spacer structure 5. The number of the rubber holes is 8, the rubber holes are positioned on the outer side of the circular ring and correspond to the positions of the outer rubber holes 42 one by one.
The inner spacer hole 53 is a circular hole on the bolt spacer structure 5. The number of the rubber holes is 8, the rubber holes are positioned on the inner side of the circular ring and correspond to the positions of the inner rubber holes 43 one by one.
The bolt structure 6 comprises a stud 61 and a nut 62.
The stud 61 is matched with the outer positioning bolt hole 13 and the inner positioning bolt hole 23. The number is 16, and the length is required by the structural design.
The nuts 62 are hexagon nuts matched with the studs 61, and the number of the nuts is 16.
The fastening collar arrangement 7 comprises a fastening collar 71, a fastening bolt 72.
The fastening collar 71 is a circular steel sheet structure, and the diameter of the circular steel sheet can be adjusted to fasten the air source interface 44 and the air source pipeline.
When the bolt 72 is fastened, the nut is in a cross-shaped bolt structure. In connection with the fastening collar 71, the diameter of the fastening collar 71 can be adjusted by turning the fastening bolt.
In the specific implementation of this embodiment, the using method includes the following steps:
(1) and (5) constructing the cement soil mixing pile.
(1-1) moving the mixing pile machine to a specified position, and adjusting the mixing pile machine to be vertical to prevent the cement mixing pile from inclining;
and (1-2) starting the mixing pile machine, and enabling the mixing pile machine to rotate downwards to the designed elevation of the mixing pile. And then starting a cement slurry pump, pumping the configured cement slurry into the mixing pile, and lifting the mixing pile machine at a constant speed to enable the mixing pile machine to rotate and lift while spraying the slurry. After the mixing pile machine reaches the ground, closing the cement slurry pump;
and (1-3) in order to ensure that the cement paste and the soil are uniformly mixed, rotating and sinking the mixing pile machine to a designed elevation, and then lifting upwards.
(2) And (4) preparing a carbonization construction device.
(2-1) the inner vent hole 22 on the surface of the inner vent pipe 21 is sealed with a sealing film. The lubricant is prevented from flowing into the inner vent pipe 21 to block a carbon dioxide flow channel in the process of smearing the lubricant;
(2-2) the lubricant is uniformly applied to the outer surface of the inner vent pipe 21 and the inner surface of the outer vent pipe 11. The lubricant is beneficial to the penetration of the inner breather pipe structure 2 into the outer breather pipe structure 1 and the rotation of the inner breather pipe structure 2;
(2-3) after the lubricant is smeared, penetrating the closed end of the inner vent pipe structure 2 into the outer vent pipe structure 1 to form a uniform whole, wherein the inner vent pipe structure 2 is flush with the open end of the outer vent pipe structure 1;
(2-4) rotating the inside snorkel structure 2. When the positions of the inner positioning bolt holes 23 and the inner and outer positioning bolt holes 13 are just staggered, the positions of the inner vent holes 22 and the outer vent holes 12 are staggered at the same time, and inner and outer through pore channels are not formed on the side surfaces of the outer vent pipe structure 1 and the inner vent pipe structure 2, so that cement slurry is prevented from blocking a pipeline.
(3) And (5) placing a carbonization construction device.
(3-1) sinking the closed end of the integrated outer and inner snorkel structures 1 and 2 to a predetermined elevation. The elevation of the one end of the opening in the outer vent pipe structure 1 and the inner vent pipe structure 2 is larger than the elevation of the ground. Preventing water on the ground from flowing into the pipeline;
(3-2) in order to ensure the inside of the inside snorkel 21 clean and prevent soil from entering the pipeline, the protective sleeve structure 3 is sleeved on the top of the outside snorkel structure 1 and the inside snorkel structure 2.
(4) Carbon dioxide is introduced.
(4-1) after the cement soil mixing pile is maintained to a specified age, taking down the protective sleeve structure 3;
(4-2) rotating the inside snorkel structure 2 so that the inside positioning bolt holes 23 correspond to the outside positioning bolt holes 12 one to one. At this time, the outer vent hole 12 and the inner vent hole 22 are communicated with each other to form a pore channel;
(4-3) placing the sealing rubber ring structure 4 on top of the outer vent pipe structure 1 and the inner vent pipe structure 2, aligning the outer rubber holes 42 with the outer positioning bolt holes 13, and aligning the inner rubber holes 43 with the inner positioning bolt holes 23;
(4-4) the bolt washer structure 5 is put on the rubber ring 41 through the air supply port 44, and the outside washer hole 52 is aligned with the outside rubber hole 42, and the inside washer hole 53 is aligned with the inside rubber hole 43;
(4-5) the stud 61 is inserted into the outside washer hole 52, the outside rubber hole 42, the inside washer hole 53, the inside rubber hole 43 in this order, and screwed into the outside and inside retainer bolt holes 13 and 23. The nut 62 is then tightened;
(4-6) first, the securing collar structure 7 is threaded into the air supply port 44. Then inserting the carbon dioxide vent pipe into the air source interface 44, finally adjusting the position of the fastening collar structure 7, screwing the fastening bolt 72, reducing the gap between the air source interface 44 and the carbon dioxide vent pipe, and fastening the air source interface 44 and the carbon dioxide vent pipe;
and (4-7) opening a carbon dioxide vent valve, and allowing carbon dioxide to enter the cement-soil mixing pile through the gas source interface 44, the inner vent hole 22 and the outer vent hole 12.
(5) And grouting is carried out on the outer air pipe 11.
(5-1) after carbonization and maintenance are carried out for a specified time, unscrewing the fastening bolt 72 and detaching the carbon dioxide vent pipe;
(5-2) the nut 62 is unscrewed, and the bolt washer structure 5 and the sealing rubber ring structure 4 are removed. Then the stud 61 is unscrewed;
(5-3) drawing out the inner side vent pipe structure 2, then grouting the inner side vent pipe 11 until cement mortar overflows, and stopping grouting.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a soil cement mixing pile carbonization construction equipment which characterized in that includes:
the outer side vent pipe structure comprises an outer side vent pipe with one closed end and one open end, wherein a plurality of outer side vent holes are formed in the circumferential surface of the outer side vent pipe, and a plurality of outer side positioning bolt holes are formed in the end surface of the open end of the outer side vent pipe;
the inner side vent pipe structure comprises an inner side vent pipe with one closed end and one open end, the outer diameter of the inner side vent pipe is equal to the inner diameter of the outer side vent pipe, the length of the inner side vent pipe is equal to the depth of the outer side vent pipe, the circumferential surface of the inner side vent pipe is provided with inner side vent holes corresponding to the outer side vent holes, and the end surface of the open end of the inner side vent pipe is provided with a plurality of inner side positioning bolt holes;
the sealing rubber ring structure comprises an annular rubber ring, wherein the inner edge of the rubber ring extends outwards along the axial direction to form a cylindrical air source interface, a plurality of outer rubber holes and a plurality of inner rubber holes are respectively formed in the surface of the rubber ring, the outer rubber holes correspond to the outer positioning bolt holes, and the inner rubber holes correspond to the inner positioning bolt holes;
the bolt gasket structure comprises a bolt gasket, wherein a plurality of outer gasket holes and a plurality of inner gasket holes are respectively formed in the bolt gasket, the outer gasket holes correspond to the outer positioning bolt holes, and the inner gasket holes correspond to the inner positioning bolt holes; and
the bolt structure comprises a stud and a nut, the stud can sequentially penetrate through an outer gasket hole or an inner gasket hole, an outer rubber hole or an inner rubber hole and then is in threaded connection with an outer positioning bolt hole or an inner positioning bolt hole, and the nut is in threaded connection with the outer end of the stud and can fasten the bolt gasket and the rubber ring.
2. The carbonization construction device of the cement-soil mixing pile according to claim 1, wherein the number of the outer positioning bolt holes is 8, and the outer positioning bolt holes are uniformly distributed along the circumferential direction of the outer vent pipe.
3. The carbonization construction device for the cement-soil mixing pile according to claim 2, wherein the circumferential distribution positions of the outer vent holes along the outer vent pipe are in one-to-one correspondence with the distribution of the outer positioning bolt holes.
4. The carbonization construction device for cement-soil mixing piles according to claim 2, wherein the distribution positions of the inner positioning bolt holes in the circumferential direction correspond to the distribution of the outer positioning bolt holes one to one.
5. The apparatus as claimed in claim 1, wherein the air source port has an inner diameter corresponding to an inner diameter of the inner air pipe, and the rubber ring has an outer diameter corresponding to an outer diameter of the outer air pipe.
6. The carbonizing apparatus for cement-soil mixing pile according to claim 1, wherein an inner diameter of the bolt washer is equivalent to an outer diameter of the air source port, and an outer diameter of the bolt washer is equivalent to an outer diameter of the rubber ring.
7. The carbonization construction device of the cement-soil mixing pile according to claim 1, further comprising a hollow cylindrical protective sleeve structure having a closed end and an open end, wherein the inner diameter of the protective sleeve structure is equal to the outer diameter of the outer vent pipe.
8. The carbonization construction device of the cement-soil mixing pile according to claim 1, further comprising a fastening collar structure, wherein the fastening collar structure comprises a fastening collar and a fastening bolt, the fastening collar is sleeved outside the air source interface and is used for fastening the air source interface connected with an air source, and the fastening bolt can adjust the radial dimension of the fastening collar.
9. The apparatus for constructing a carbonized cement soil mixing pile as recited in claim 1, wherein said outside ventilation hole is of a size corresponding to said inside ventilation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011319251.8A CN112411532A (en) | 2020-11-23 | 2020-11-23 | Cement mixing pile carbonization construction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011319251.8A CN112411532A (en) | 2020-11-23 | 2020-11-23 | Cement mixing pile carbonization construction device |
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| CN112411532A true CN112411532A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011319251.8A Pending CN112411532A (en) | 2020-11-23 | 2020-11-23 | Cement mixing pile carbonization construction device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497012A (en) * | 1990-08-14 | 1992-03-30 | Kyokado Eng Co Ltd | Chemical grout injection work |
| CN102102360A (en) * | 2010-12-24 | 2011-06-22 | 东南大学 | Method and device for carbonizing and curing soil |
| CN204062251U (en) * | 2014-09-05 | 2014-12-31 | 中交天津航道局有限公司 | The linkage structure of rigid pipe and transparent pipe |
| CN106869120A (en) * | 2017-04-07 | 2017-06-20 | 东南大学 | One kind carbonization mixing pile ventilative pipe pile composite foundation and its construction method |
| CN206862714U (en) * | 2017-04-06 | 2018-01-09 | 张宇 | A kind of soil environment detection gas sampling device |
| CN208204274U (en) * | 2018-03-31 | 2018-12-07 | 浙江巨丰管业有限公司 | A kind of gas pipeline of good airproof performance |
-
2020
- 2020-11-23 CN CN202011319251.8A patent/CN112411532A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497012A (en) * | 1990-08-14 | 1992-03-30 | Kyokado Eng Co Ltd | Chemical grout injection work |
| CN102102360A (en) * | 2010-12-24 | 2011-06-22 | 东南大学 | Method and device for carbonizing and curing soil |
| CN204062251U (en) * | 2014-09-05 | 2014-12-31 | 中交天津航道局有限公司 | The linkage structure of rigid pipe and transparent pipe |
| CN206862714U (en) * | 2017-04-06 | 2018-01-09 | 张宇 | A kind of soil environment detection gas sampling device |
| CN106869120A (en) * | 2017-04-07 | 2017-06-20 | 东南大学 | One kind carbonization mixing pile ventilative pipe pile composite foundation and its construction method |
| CN208204274U (en) * | 2018-03-31 | 2018-12-07 | 浙江巨丰管业有限公司 | A kind of gas pipeline of good airproof performance |
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Application publication date: 20210226 |
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