CN110230314A - A kind of piling strtucture and its construction method - Google Patents
A kind of piling strtucture and its construction method Download PDFInfo
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- CN110230314A CN110230314A CN201910351436.8A CN201910351436A CN110230314A CN 110230314 A CN110230314 A CN 110230314A CN 201910351436 A CN201910351436 A CN 201910351436A CN 110230314 A CN110230314 A CN 110230314A
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- Prior art keywords
- sand
- stake
- ground
- layer
- pasteur
- Prior art date
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 239000002689 soil Substances 0.000 claims abstract description 40
- 239000004576 sand Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 241000186547 Sporosarcina Species 0.000 claims abstract description 26
- 235000015097 nutrients Nutrition 0.000 claims abstract description 26
- 239000004575 stone Substances 0.000 claims abstract description 24
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 159000000007 calcium salts Chemical class 0.000 claims abstract description 12
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 7
- 239000004202 carbamide Substances 0.000 claims abstract description 7
- 235000016709 nutrition Nutrition 0.000 claims abstract description 5
- 230000035764 nutrition Effects 0.000 claims abstract description 5
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 5
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 239000000243 solution Substances 0.000 claims description 18
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 8
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical group [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- WLQXPAUZYVXSNE-UHFFFAOYSA-N [Ca].O[N+]([O-])=O Chemical compound [Ca].O[N+]([O-])=O WLQXPAUZYVXSNE-UHFFFAOYSA-N 0.000 claims 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 18
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 244000005700 microbiome Species 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 8
- 239000004567 concrete Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- FDGQSTZJBFJUBT-UHFFFAOYSA-N hypoxanthine Chemical compound O=C1NC=NC2=C1NC=N2 FDGQSTZJBFJUBT-UHFFFAOYSA-N 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 241000726221 Gemma Species 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241001478240 Coccus Species 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- 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
-
- 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
-
- 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
- E02D5/66—Mould-pipes or other moulds
Landscapes
- 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)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
A kind of piling strtucture, including the stake holes being opened on ground, bottom and side wall in the stake holes is equipped with layer of sand, the top of the ground and side wall layer of sand is equipped with soil padding, and the stake holes fills the stake core being made of crushed stone in the cavity that layer of sand and soil padding surround, the stake in-core is filled with Pasteur's sporosarcina liquid and nutrient solution, and the nutrient solution includes urea 0.5mol/L, calcium salt 0.5mol/L, sodium bicarbonate 2.12g/L, nutrient broth 3g/L and ammonium chloride 10g/L.The present invention is reacted using Pasteur's sporosarcina and nutrition liquor generates calcium carbonate to cementing loose sand and crushed stone, and cementation solidifying after permeating to ground, improves the intensity of pile foundation soil；The present invention uses microorganism solidified soil material short construction period, has environmental protection and eco-compatibility.
Description
Technical field
The present invention relates to pile foundation technology fields, and in particular to a kind of piling strtucture and its construction method.
Background technique
The deep foundation being made of the pile framing (abbreviation cushion cap) of stake and connection stake top or the single pile base being connect by column with pile foundation
Plinth, abbreviation pile foundation.If pile body is all embedded in soil, cushion cap bottom surface is contacted with the soil body, then referred to as embedded footing on piles, low capped pile foundation；If pile body top
It bassets and cushion cap bottom is located at ground or more, then referred to as elevated footing on piles.Building pile foundation is usually embedded footing on piles, low capped pile foundation plinth.It is high-rise
In building, pile foundation is widely used.Pile foundation construction is the foundation engineering of building construction, and the position in architectural engineering is very heavy
It wants.There are many different types for pile foundation, can be divided into prefabricated pile and bored concrete pile according to construction technology.Prefabricated pile is exactly before construction
It is directly squeezed into soil using piling machine in the stake of factory or construction site production respective shapes, work.Bored concrete pile is then
After needing to complete punching work at stake position, framework of steel reinforcement is added wherein, finally carrying out pouring for concrete again just can obtain
To pile body.And with the continuous improvement that people require Quality of Foundation, also require us that architectural engineering is continuously improved
Construction technology.
The concreting material of existing pile foundation generally has ordinary reinforced concrete, chutable concrete, fiber concrete, micro-
Weak expansive concrete etc..And with while social economy rapidly develops building trade also obtained quick progress, construct
Technology new process is continuously available breakthrough.Therefore pile foundation pours material and can not be confined to concrete, so feel to have must by the applicant
To it is proposed a kind of novel piling strtucture, on the basis of new material to further increase the intensity of pile foundation.
Summary of the invention
Present invention aims to overcome that the shortcomings that prior art and deficiency, provide a kind of piling strtucture, to improve pile foundation
Intensity, while improving the bonding force that pile foundation pours material.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of piling strtucture, including the stake holes being opened on ground, the bottom and side wall in the stake holes is equipped with layer of sand, institute
The top for stating ground and side wall layer of sand is equipped with soil padding, and the stake holes is filled in the cavity that layer of sand is surrounded with soil padding by broken
The stake core of stone composition, the stake in-core are filled with Pasteur's sporosarcina liquid and nutrient solution, and the nutrient solution includes urea
0.5mol/L, calcium salt 0.5mol/L, sodium bicarbonate 2.12g/L, nutrient broth 3g/L and ammonium chloride 10g/L.
From the foregoing, it will be observed that the present invention reacted using Pasteur's sporosarcina and nutrition liquor generate calcium carbonate to
Cementing loose sand and crushed stone, and cementation solidifying after permeating to ground, improve the intensity of pile foundation soil；In addition crushed stone
The hole of stake core is larger, and Pasteur's sporosarcina liquid and nutrient solution can preferably be spread in ground, layer of sand and soil padding etc.
Various pieces are unlikely to because of the calcium carbonate blocking injection slurry that Pasteur's sporosarcina liquid and nutrient solution reaction generate, thus
Improve uniformity of the precipitation of calcium carbonate in stake；And work progress of the present invention is simple, while guaranteeing work quality, section
Labour has been saved, construction efficiency is improved, while having effectively reduced the outward transport cost of the spoir in municipal construction, has reduced and is constructed into
This；The present invention uses microorganism solidified soil material short construction period, has environmental protection and eco-compatibility.
As an improvement of the present invention, the crushed stone includes gravel and sandstone.
As an improvement of the present invention, the soil padding with a thickness of 100~300mm.
As an improvement of the present invention, the calcium salt is calcium chloride or calcium nitrate.
A kind of construction method of piling strtucture, comprising the following steps:
Stake holes is opened on ground using stake machine is bored, and clears up sundries in stake holes；
It first is laid with one layer of bottom layer of sand to stake holes bottom, then is placed with outer steel pillar and interior steel pillar, outer steel in stake holes
Pillar is close to stake holes inner wall；
Stake holes space between outside steel pillar and interior steel pillar fills side wall layer of sand, until side wall layer of sand and ground basal plane are flat
Together, outer steel pillar is then transferred to；
Soil padding is laid in the top of ground and side wall layer of sand；
Steel pillar in Huan Maning while being put into crushed stone in inside steel pillar；
30 minutes are stood after injecting Pasteur's sporosarcina liquid into rubble block gap using Grouting Pipe；
Nutrient solution is finally injected into crushed stone gap, nutrient solution includes urea 0.5mol/L, calcium salt 0.5mol/L, carbonic acid
Hydrogen sodium 2.12g/L, nutrient broth 3g/L and ammonium chloride 10g/L.
As an improvement of the present invention, the crushed stone includes gravel and sandstone.
As an improvement of the present invention, the step " injects Pasteur's gemma eight into rubble block gap using Grouting Pipe
Stands 30 minutes after folded coccus liquid " in when injecting Pasteur's sporosarcina liquid into rubble block gap using Grouting Pipe, guarantee
Middle Pasteur's sporosarcina liquid liquid level and soil padding surface at least keep the difference in height of 3m in Grouting Pipe, to make Pasteur's gemma
Sarcine liquid is spread into ground and layer of sand.
As an improvement of the present invention, the soil padding with a thickness of 100~300mm.
As an improvement of the present invention, the calcium salt is calcium chloride or calcium nitrate.
Compared with prior art, the invention has the following advantages that
The present invention is reacted using Pasteur's sporosarcina and nutrition liquor generates calcium carbonate to cementing loose
Sand and crushed stone, and cementation solidifying after being permeated to ground, improve the intensity of pile foundation soil；
In addition the hole of crushed stone stake core is larger, and Pasteur's sporosarcina liquid and nutrient solution preferably can be spread in ground
The various pieces such as base, layer of sand and soil padding are unlikely to because of the carbonic acid that Pasteur's sporosarcina liquid and nutrient solution reaction generate
Calcium blocks injection slurry, to improve uniformity of the precipitation of calcium carbonate in stake；
And work progress of the present invention is simple, while guaranteeing work quality, saves labour, improves construction effect
Rate, while the outward transport cost of the spoir in municipal construction is effectively reduced, reduce construction cost；
The present invention uses microorganism solidified soil material short construction period, has environmental protection and eco-compatibility.
Detailed description of the invention
Fig. 1 is the schematic diagram of piling strtucture of the present invention；
Fig. 2 is the construction schematic diagram of piling strtucture of the present invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.It is understood that tool described herein
Body embodiment is used only for explaining the present invention rather than limiting the invention.It also should be noted that for the ease of retouching
It states, only some but not all contents related to the present invention are shown in the drawings.
Embodiment 1
Please refer to Fig. 1 and Fig. 2, a kind of piling strtucture, the bottom including the stake holes 11 being opened on ground 10, in the stake holes 11
Portion and side wall are equipped with layer of sand 20, and the top of the ground 10 and side wall layer of sand 20 is equipped with soil padding 30, and the stake holes 11 exists
The stake core 40 being made of crushed stone is filled in the cavity that layer of sand 20 and soil padding 30 surround, and is filled with Pasteur's bud in the stake core 40
Spore sarcine liquid and nutrient solution, the nutrient solution include urea 0.5mol/L, calcium salt 0.5mol/L, sodium bicarbonate 2.12g/L,
Nutrient broth 3g/L and ammonium chloride 10g/L.
From the foregoing, it will be observed that the present invention reacted using Pasteur's sporosarcina and nutrition liquor generate calcium carbonate to
Cementing loose sand and crushed stone, and cementation solidifying after permeating to ground, improve the intensity of pile foundation soil；In addition crushed stone
The hole of stake core is larger, and Pasteur's sporosarcina liquid and nutrient solution can preferably be spread in ground, layer of sand and soil padding etc.
Various pieces are unlikely to because of the calcium carbonate blocking injection slurry that Pasteur's sporosarcina liquid and nutrient solution reaction generate, thus
Improve uniformity of the precipitation of calcium carbonate in stake；And work progress of the present invention is simple, while guaranteeing work quality, section
Labour has been saved, construction efficiency is improved, while having effectively reduced the outward transport cost of the spoir in municipal construction, has reduced and is constructed into
This；The present invention uses microorganism solidified soil material short construction period, has environmental protection and eco-compatibility.
In the present embodiment, the crushed stone includes gravel and sandstone.Gravel: deposit of the grade between 2~256mm.
It is divided into three kinds of cobble (64~256mm), boulderet (8~64mm) and granule (2~8mm)；Sandstone: partial size is the mine of 0.074~2mm
Object or rock particles；Being mixed using gravel and sandstone both ensure that the guaranteed stake core of density of a core had centainly as stake core
Gap.
In the present embodiment, the soil padding 30 with a thickness of 100~300mm.Soil padding is to final settlement, adjustment stake soil
The advantages of stress ratio, adjustment stake soil horizontal loading play an important role, soil padding too thick stake do not play, and soil padding is too thin to answer
Power excessively concentrates in stake, and native effect does not play, therefore the thickness of soil padding is set as 100~300mm, is conducive to balance
Stress balance between stake soil.
In the present embodiment, the calcium salt is calcium chloride or calcium nitrate.
A kind of construction method of piling strtucture, comprising the following steps:
Stake holes 11 is opened on ground 10 using stake machine is bored, and clears up sundries in stake holes 11；
It first is laid with one layer of bottom layer of sand 20 to 11 bottom of stake holes, then is placed with outer steel pillar 50 and interior steel shield in stake holes 11
Pipe 60, outer steel pillar 50 are close to 11 inner wall of stake holes；
11 space of stake holes between outside steel pillar 50 and interior steel pillar 60 fills side wall layer of sand 20, until side wall layer of sand 20
It is concordant with 10 face of ground, then transfer to outer steel pillar 50；
Soil padding 30 is laid in the top of ground 10 and side wall layer of sand 20；
Steel pillar 60 in Huan Maning while being put into crushed stone in inside steel pillar 60；
30 minutes are stood after injecting Pasteur's sporosarcina liquid into rubble block gap using Grouting Pipe 70；
Nutrient solution is finally injected into crushed stone gap, nutrient solution includes urea 0.5mol/L, calcium salt 0.5mol/L, carbonic acid
Hydrogen sodium 2.12g/L, nutrient broth 3g/L and ammonium chloride 10g/L.
In the present embodiment, the crushed stone includes gravel and sandstone.
In the present embodiment, the step " injects Pasteur's sporosarcina liquid into rubble block gap using Grouting Pipe
When injecting Pasteur's sporosarcina liquid into rubble block gap using Grouting Pipe in standing 30 minutes afterwards ", guarantee in Grouting Pipe
Middle Pasteur's sporosarcina liquid liquid level and soil padding surface at least keep the difference in height of 3m, to make Pasteur's sporosarcina
Liquid is spread into ground and layer of sand.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (9)
1. a kind of piling strtucture, it is characterised in that: including the stake holes being opened on ground, the bottom and side wall in the stake holes is all provided with
There is a layer of sand, the top of the ground and side wall layer of sand is equipped with soil padding, and the cavity that the stake holes is surrounded in layer of sand and soil padding
Interior to fill the stake core being made of crushed stone, the stake in-core is filled with Pasteur's sporosarcina liquid and nutrient solution, the nutrition
Liquid includes urea 0.5mol/L, calcium salt 0.5mol/L, sodium bicarbonate 2.12g/L, nutrient broth 3g/L and ammonium chloride 10g/L.
2. piling strtucture according to claim 1, it is characterised in that: the crushed stone includes gravel and sandstone.
3. piling strtucture according to claim 1, it is characterised in that: the soil padding with a thickness of 100~300mm.
4. piling strtucture according to claim 1, it is characterised in that: the calcium salt is calcium chloride or calcium nitrate.
5. a kind of construction method of piling strtucture, it is characterised in that the following steps are included:
Stake holes is opened on ground using stake machine is bored, and clears up sundries in stake holes；
It first is laid with one layer of bottom layer of sand to stake holes bottom, then is placed with outer steel pillar and interior steel pillar in stake holes, outer steel pillar
It is close to stake holes inner wall；
Stake holes space between outside steel pillar and interior steel pillar fills side wall layer of sand, until side wall layer of sand is concordant with ground basal plane,
Then outer steel pillar is transferred to；
Soil padding is laid in the top of ground and side wall layer of sand；
Steel pillar in Huan Maning while being put into crushed stone in inside steel pillar；
30 minutes are stood after injecting Pasteur's sporosarcina liquid into rubble block gap using Grouting Pipe；
Nutrient solution is finally injected into crushed stone gap, nutrient solution includes urea 0.5mol/L, calcium salt 0.5mol/L, sodium bicarbonate
2.12g/L, nutrient broth 3g/L and ammonium chloride 10g/L.
6. the construction method of piling strtucture according to claim 5, it is characterised in that: the crushed stone includes gravel and sand
Stone.
7. the construction method of piling strtucture according to claim 5, it is characterised in that: the step " using Grouting Pipe to
Stands 30 minutes after injection Pasteur's sporosarcina liquid in rubble block gap " in utilization Grouting Pipe injected into rubble block gap
When Pasteur's sporosarcina liquid, guarantee that middle Pasteur's sporosarcina liquid liquid level is at least kept with soil padding surface in Grouting Pipe
The difference in height of 3m, so that Pasteur's sporosarcina liquid be made to spread into ground and layer of sand.
8. the construction method of piling strtucture according to claim 5, it is characterised in that: the soil padding with a thickness of 100
~300mm.
9. the construction method of piling strtucture according to claim 5, it is characterised in that: the calcium salt is calcium chloride or nitric acid
Calcium.
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| CN201910351436.8A CN110230314B (en) | 2019-04-28 | 2019-04-28 | Pile foundation structure and construction method thereof |
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| CN110230314B CN110230314B (en) | 2024-04-26 |
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| CN112709213A (en) * | 2020-12-31 | 2021-04-27 | 湖南大学 | Method and device for curing top of gravel pile based on MICP technology |
| WO2022077908A1 (en) * | 2020-10-12 | 2022-04-21 | 海南大学 | Isoenergetic deformation composite foundation utilizing microorganism to solidify aggregate, and construction method |
| WO2022213766A1 (en) * | 2021-04-08 | 2022-10-13 | 中国长江三峡集团有限公司 | Microbiologically induced calcium carbonate precipitation gravel composite pile reinforcement structure and construction method |
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| US20220315882A1 (en) * | 2020-10-12 | 2022-10-06 | Hainan University | Equal energy deformation composite foundation using microorganisms to solidify aggregate and the construction method thereof |
| CN112709213A (en) * | 2020-12-31 | 2021-04-27 | 湖南大学 | Method and device for curing top of gravel pile based on MICP technology |
| WO2022213766A1 (en) * | 2021-04-08 | 2022-10-13 | 中国长江三峡集团有限公司 | Microbiologically induced calcium carbonate precipitation gravel composite pile reinforcement structure and construction method |
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