CN106012733A - Wrapping type reinforcement solidification method for roadbed of high filled embankment - Google Patents
Wrapping type reinforcement solidification method for roadbed of high filled embankment Download PDFInfo
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- CN106012733A CN106012733A CN201610300790.4A CN201610300790A CN106012733A CN 106012733 A CN106012733 A CN 106012733A CN 201610300790 A CN201610300790 A CN 201610300790A CN 106012733 A CN106012733 A CN 106012733A
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- reinforcement
- soil
- solidification
- solidified
- roadbed
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- 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
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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
Abstract
A wrapping type reinforcement solidification method for a roadbed of a high filled embankment is implemented as follows: solidified soil material making, concretely, the solidified soil material is made by uniformly stirring a soil curing agent and filler soil; reinforcement laying, concretely, reinforcements are horizontally crosswise arranged and completely paved on the surface of a lower bearing layer after being leveled in full width, a fixed geogrid is inspected and aligned while being pulled and paved forwards, and the reinforcements are flattened and straightened; solidified soil material paving, concretely, the solidified soil material is paved on the geogrid layer by layer, each layer is ground and formed after being paved uniformly, and grinding is conducted till the filling elevation of wrapping reinforcement solidified soil is reached; wrapping and reinforcement stretching, concretely, the reinforcements of the preserved reinforcement sections at the both sides are inflected upwards to wrap the outer side of the solidified soil material by certain length, and the inflected reinforcements at the both sides are connected by reinforcement stretching strips and paved longitudinally at an equal interval, to form a reinforced solidification wrapping body; and curing and molding, concretely, field soil covers or geomembrane caps the upper parts of the reinforced solidification wrapping bodies for 7-14 days for curing. According to the invention, the light reinforced structure with good deformation compatibility is provided, the dead-weight can be reduced, and thus the load borne by a foundation is effectively decreased.
Description
Technical field
The present invention relates to a kind of high embankment roadbed packaging type reinforcement curing.
Background technology
Reinforced earth is that France engineer Henry Victor (Henri Vidal) proposed in 1963.Nineteen sixty-five, build seat of honour reinforced soil retaining wall at the pula Nie Ersi of France's Pyrenees.1967, reinforced earth technology was referred to as reinforcement geotechnique's method by Japan, and is generalized in the engineering constructions such as railway, highway and side slope.The U.S. started just to carry out reinforced earth technology research from 1969, within 1970, had built First Reinforced Material with Clay Engineering, and within 1978, American Society of Civil Engineers (ASCE) has held " reinforced earth Study on Friction Coefficient meeting " in city of Pittsburgh.This new reinforced earth technology is in various countries' fast development and popularization and application subsequently.Nineteen eighty-two, build 5000 multinomial Reinforced Material with Clay Engineering in 37 countries, and be generalized in the fields such as building basis, railroad embankment, dykes and dams, shore protection, abutment.
Reinforced earth is to be embedded in geosynthetics higher for tensile strength in soil to form an effective reinforcement-soil composite construction, muscle material is laid along stretching strain direction in the soil body, interact the frictional force control soil deformation produced mainly by soil and muscle material, improve soil body tensile property, shearing strength, improve the reinforcement technique of soil body mechanical property.Existing wide variety of reinforced earth technology, the traditional horizontal reinforced earth technology muscle material of general employing mostly aligns in soil, layering reinforcement layering is banketed, the horizontal displacement (lateral deformation) of the soil body can only be controlled, and do not control soil body vertical displacement (sedimentation and deformation), more do not reach or the effect of contraction of other orientation deformation overall to the soil body, there is likely to be owing to bar spacing produces plane of weakness with aspect, and tympanites phenomenon occurs between reinforcement aspect, cause roadbed slope that similar sugarcoated haws on a stick phenomenon occurs.And packaging type reinforced earth technology muscle material overall with completely spreads level and lays, both sides muscle material parcel rollback certain length, it is possible not only to limit the horizontal displacement of the soil body, it is possible to controlling the vertical displacement of the soil body, it has engineering mechanics property more more preferable than general reinforced earth and stability in the large.Therefore, the problem on deformation solving often occur in civil engineering it is suitable for.
At present, China's subgrade strengthening aspect still continues reinforced earth and the traditional thought of solidified earth single reinforcing, and this special composite reinforcing method is solidified for packaging type reinforcement and not yet has clear stipulaties, the actual reinforcing effect taking physics reinforcement method (packaging type reinforcement) and the common composite consolidation of chemistry reinforcement method (soil-solidified-agent) of engineering should be considered as far as possible, effective way is provided for research subgrade strengthening method for designing, also the track traffic control to roadbed sedimentation and deformation, the particularly control of short distance differential settlement difference can effectively be solved.
Summary of the invention
Based on above weak point, the present invention provides a kind of high embankment roadbed packaging type reinforcement curing, can give full play to reinforcement and act in high embankment and soil quality dam engineering.
The technology used in the present invention is as follows: a kind of high embankment roadbed packaging type reinforcement curing, specifically comprises the following steps that
Step one, solidification earth material makes: solidification earth material is made up with filler soil uniform stirring of soil-solidified-agent, and soil-solidified-agent is the 3-8% of filler dry ground weight；
Step 2, muscle material laying: muscle material horizontal cross arrangement overall with is completely laid on the sub-layer surface after leveling, GSZ will be fixed and draw toward front paving frontier inspection to look into straightening, it is ensured that muscle material will flatten and stretch；
Step 3, solidification earth material paves: solidification earth material layering paves on GSZ, the every layer of rear roller-compaction that paves, and rolls order for from laying in the middle part of muscle material to both sides, until it reaches parcel reinforcement solidified earth fills absolute altitude；
Step 4, wraps up lacing wire: both lateral sides is reserved reinforcement section muscle material upwards inflection and is wrapped in certain length outside solidification earth material, uses lacing wire bar to connect and the most equidistantly laying between both sides inflection muscle material, forms reinforcement solidification inclusion enclave；
Step 5, maintenance molding: cover on-the-spot soil above reinforcement solidification inclusion enclave or add a cover geomembrane and carry out maintenance, maintenance 7-14 days, no thoroughfare for vehicles to answer close traffic during maintenance, treats that this layer of reinforcement solidified earth inclusion texture reaches design strength and carry out next layer of laying；Lay multilamellar reinforcement solidification inclusion enclave successively by above step, successively superposition, until reaching embankment design absolute altitude, is in close contact superposition and constitutes interaction integral reinforced structure between levels inclusion enclave muscle material.
The present invention also has a following technical characteristic:
1, described GSZ, for biaxial tension Plastics Geogrids or/and warp knit two-way terylene GSZ.
2, described soil-solidified-agent, by ratio of weight and the number of copies, formula includes the following: Gypsum Fibrosum 4-10 part, quick lime 10-15 part, flyash 15-24 part, blast-furnace cinder 32-45 part, silicate 16-32 part, chloride 4-8 part and sulfate 8-15 part.
3, described silicate includes the mixture of dicalcium silicate, magnesium silicate and aluminium silicate, and weight ratio is 3:2-3:2-4.
4, described chloride includes the mixture of calcium chloride, sodium chloride and magnesium chloride, and weight ratio is 3-5:2-4:2.
5, described sulfate includes the mixture of aluminum sulfate, sodium sulfate and magnesium sulfate, and weight ratio is 2:2-4:2-3.
The invention have the advantages that and beneficial effect:
The present invention is the mixed structure that the light-duty compound of soil-solidified-agent is combined with muscle material GSZ, wherein GSZ is network structure, solidification earth material can be made to be enhanced about more than once with muscle material interface friction intensity, mix soil-solidified-agent and can reduce soil body deadweight more than 30%, effectively reduce foundation's settlement.Soil-solidified-agent can effectively solve that activity itself is poor, plastic shrinkage big soil stabilization problem, soil particle surface can be cohered at normal temperatures and generate gum material with the aluminium silicate mineral generation chemical reaction in granule, compared with traditional rendzinas and soil cement, it has higher intensity and water stability, thus is widely used in the construction of the infrastructure such as traffic, water conservancy, environment, harbour, airport.Solidified earth, as roadbed improved materials, has gathering materials on the spot, reduces the advantages such as sandstone consumption, non-environmental-pollution, saving construction costs.But solidified earth there is also problem, owing to its Dry Shrinkage Performance is easily generated crack, intensity is caused to reduce, impervious poor with frost resistance, and the low immediate cause being crack and producing of the tensile splitting strength of solidified earth, for improving the intensity of solidified earth, prevent contraction fissure, improve the durability of solidfied material.Therefore, utilizing the method that packaging type reinforcement and soil-solidified-agent are reinforced jointly, both have good cohesive force, the horizontal reinforcement of muscle material and two ends package action, it is greatly improved its tensile splitting strength, for firming agent popularization and application in engineering, there is the strongest practice significance.After muscle material reinforcement, it is originally used for the significant material of fragility, changed into the elasticoplastic body material of activeness and quietness, significantly reduce the crack that solidified earth plastic shrinkage causes, effectively strengthen its elastic modelling quantity, comprcssive strength, tensile strength and buckling strength, bending toughness, impervious with frost resistance, the performance such as endurance and durability.Packaging type reinforcement curing technology is effectively to process filler from overall space reinforcement mechanism angle, changes general reinforcement method and forms some potential Weak face in the soil body and can not suppress except deficiencies such as lateral displacements.Wherein, soil-solidified-agent can make up the shortcoming that single reinforcement intensity is low, and geosynthetics also solves the problem that the single defect being solidificated in performance, dry and cracked microgroove phenomenon easily occurs, effectively solves soil strength and disease hidden danger is not enough.
In packaging type reinforcement solidified earth, level can suppress the horizontal displacement of the soil body to muscle material section, muscle material returns formation one flexible panel of envelope and produces " from anchor " effect, both sides parcel volume section not only enhances the lateral restriction of the soil body, the vertical displacement of the soil body can also be controlled, reduce the sedimentation of high side slope of embankment, lateral deformation and sliding, reinforcement solidified earth after parcel is layering so that upper and lower interfacial friction strengthens, can uniform soil body deformability, reduce high embankment Vertical Settlement, lateral deformation and the development of sliding, strengthen embankment stability in the large.Under Train induced load effect, in packaging type reinforcement solidified earth, muscle material is impacted little, and muscle material tension increases little, shows good damping property.This is owing to muscle material belongs to flexible material, is combined with the soil body and has good compatibility of deformation, it is possible to provide tension, makes the soil body show three dimension stress state, improves vibration resistance and the bearing capacity of subgrade soils.The method that the present invention is muscle material and solidified earth compound returns bag superposition layer by layer, can effectively slow down deformation, there is the light-duty reinforced structure of good compatibility of deformation, deadweight can be alleviated, save the area, effectively reduce the bearing capacity to ground, reduce advantages such as the impacts of surrounding, save material, cheap, construct simple and convenient, applied widely, the engineerings such as dykes and dams, basis, roadbed, development prospect and formation industrialization value are generalized to it the hugest.
Accompanying drawing explanation
Fig. 1 is that packaging type reinforcement solidifies construction drawing.
Detailed description of the invention
The present invention is under certain damp condition, Soil structure agent is mixed in roadbed filling according to a certain percentage, fully mix is uniformly and roller-compaction, by structural agent composition and water, mineral generation chemical reaction, generate and there is the colloid composition big compared with high-ductility intensity, micro-expansibility and chemical inertness and water of crystallization compound in a large number, as cement, the charges in soil space of soil particle, thus reach to implement effectively to solidify the purpose of consolidation process to subgrade soils；And with Soil structure agent use packaging type reinforcement technology, the soil body after having the biggest strengthening action to the soil body and making solidification shows the most overall mechanical characteristic, hydraulic characteristic, reaches the purpose of lateral deformation and the sedimentation and deformation effectively limiting roadbed.
Embodiment 1
Packaging type reinforcement of the present invention solidification construction procedure is as follows:
Step one, solidification earth material makes: solidification earth material 1 is made up with filler soil uniform stirring of soil-solidified-agent, and soil-solidified-agent is the 3-8% of filler dry ground weight；Water content is the many 2-3% of optimum moisture content, needed for many increase 2-3% are soil-solidified-agent and roadbed filling chemical reaction；Soil-solidified-agent raw material is by weight ratio: 8 parts of Gypsum Fibrosum, quick lime 10 parts, 20 parts of flyash, blast-furnace cinder 36 parts, dicalcium silicate, magnesium silicate and 30 parts of the mixture of aluminium silicate 3:2:3, calcium chloride, sodium chloride and 9 parts of the mixture of 5 parts of the mixture of magnesium chloride 3:4:2, aluminum sulfate, sodium sulfate and magnesium sulfate 2:4:3.
Step 2, muscle material laying: paving on sub-layer by muscle material 2, use horizontal overall with completely to spread laying method, certain length rollback reserved by both sides muscle material, inflection back-pressure width is more than 2m.Both sides muscle material lacing wire is connected integral, ensures and do not have breakage and joint, muscle material Lay interval to be chosen for 30-50cm.Two muscle material junctions, longitudinal lap joint 15-20cm, transverse lap 10-15cm, with iron wire in lap-joint's colligation, every 1.5-2.0m, ground is fixed on U-shaped nail in GSZ end, GSZ will be fixed with paving machine and draw the most forward paving, often lay 10m and need to manually strain straightening, keep flattening and stretching, close inspection making quality, the earth material of backfill solidification in time.
Step 3, solidification earth material paves: use solidification earth material to make filling material, use field mix process, ensure uniformity of mixture as far as possible, should be containing the granule more than more than 10mm, place should keep smooth solid, and employing is mixed and stirred, transports, paves, is compacted quick construction technology successively, and construction temperature controls more than 5 DEG C.Construction machinery can not run in the rib tape not covering solidification earth material, strictly avoids directly rolling muscle material and bulldozing along the direction that muscle material is laid, and ensures that solidifying earth material thickness on muscle material can carry out construction machinery operation more than 15cm or roll.Solidifying earth material between muscle material uses layering to pave, be compacted, and paving thickness is wanted uniformly, is maintained between 15mm-20mm, flat surface, compaction in layers, and compactness is not lower than 95%, roll order for from laying in the middle part of muscle material, afterbody, front portion.
Step 4, wraps up lacing wire: both lateral sides is reserved reinforcement section muscle material upwards inflection and is wrapped in certain length outside solidification earth material, uses lacing wire bar 3 to connect and the most equidistantly laying between both sides inflection muscle material, forms reinforcement solidification inclusion enclave；
Step 5, maintenance molding: cover on-the-spot soil above reinforcement solidification inclusion enclave or add a cover geomembrane and carry out maintenance, maintenance 7-14 days, no thoroughfare for vehicles to answer close traffic during maintenance, treats that this layer of reinforcement solidified earth inclusion texture reaches design strength and carry out next layer of laying；Lay multilamellar reinforcement solidification inclusion enclave successively by above step, successively superposition, until reaching embankment design absolute altitude, is in close contact superposition and constitutes interaction integral reinforced structure between levels inclusion enclave muscle material.
Points for attention:
1, along with the reduction of muscle material spacing, return the face horizontal displacement of bag reinforcement and substantially reduce, can effectively suppress domatic " bulge ", if but bar spacing is too small, and also there will be overreinforced phenomenon, increase cost and difficulty of construction.Should be according to engineering demand preferably reasonably bar spacing, the most available bar spacing that reduces controls lateral deformation.
2, muscle material completely spreads end and returns bag end and often there will be sedimentation jumping phenomenon, but owing to muscle material " string bag effect " has fine inhibitory action to subgrade settlement.But muscle material only return bag a bit of length, though soil body integral rigidity can be improved, but away from return the bag section soil body there will be sedimentation slightly improve；When making to occur to destroy, in the range of geo-grid reinforcement, bulk deformation has driven non-reinforcement section large deformation occur, so, returning bag section muscle material should be longer.
Embodiment 2
The present embodiment step is same as in Example 1, difference is, soil-solidified-agent raw material is by weight ratio: 6 parts of Gypsum Fibrosum, quick lime 12 parts, 28 parts of the mixture of 18 parts of flyash, blast-furnace cinder 42 parts, dicalcium silicate, magnesium silicate and aluminium silicate 3:3:2, calcium chloride, sodium chloride and 12 parts of the mixture of 7 parts of the mixture of magnesium chloride 4:3:2, aluminum sulfate, sodium sulfate and magnesium sulfate 2:2:3.
Embodiment 3
The present embodiment step is same as in Example 1, difference is, soil-solidified-agent raw material is by weight ratio: 4 parts of Gypsum Fibrosum, quick lime 14 parts, 16 parts of the mixture of 22 parts of flyash, blast-furnace cinder 45 parts, dicalcium silicate, magnesium silicate and aluminium silicate 3:3:4, calcium chloride, sodium chloride and 10 parts of the mixture of 4 parts of the mixture of magnesium chloride 3:3:2, aluminum sulfate, sodium sulfate and magnesium sulfate 2:3:3.
Embodiment 4
The present embodiment step is same as in Example 1, difference is, soil-solidified-agent raw material is by weight ratio: 10 parts of Gypsum Fibrosum, quick lime 15 parts, 24 parts of the mixture of 15 parts of flyash, blast-furnace cinder 34 parts, dicalcium silicate, magnesium silicate and aluminium silicate 3:2:4, calcium chloride, sodium chloride and 14 parts of the mixture of 8 parts of the mixture of magnesium chloride 5:3:2, aluminum sulfate, sodium sulfate and magnesium sulfate 2:3:2.
Claims (6)
1. one kind high embankment roadbed packaging type reinforcement curing, it is characterised in that specifically comprise the following steps that
Step one, solidification earth material makes: solidification earth material is made up with filler soil uniform stirring of soil-solidified-agent, and soil is solid
Agent is the 3-8% of filler dry ground weight；
Step 2, muscle material laying: muscle material horizontal cross arrangement overall with is completely laid on the sub-layer surface after leveling, will
Fix GSZ draws paving frontier inspection to look into straightening toward front, it is ensured that muscle material flattens and stretches；
Step 3, solidification earth material paves: solidification earth material layering paves on GSZ, every layer of rear stone roller that paves
Molded, roll order for from laying in the middle part of muscle material to both sides, until it reaches parcel reinforcement solidified earth
Fill absolute altitude；
Step 4, wraps up lacing wire: both lateral sides is reserved reinforcement section muscle material upwards inflection and is wrapped in outside solidification earth material certain
Length, uses lacing wire bar to connect and is the most equidistantly laying between both sides inflection muscle material, formation adds
Muscle solidification inclusion enclave；
Step 5, maintenance molding: cover on-the-spot soil above reinforcement solidification inclusion enclave or add a cover geomembrane and carry out maintenance, supporting
Protecting 7-14 days, no thoroughfare for vehicles to answer close traffic during maintenance, treats this layer of reinforcement solidified earth parcel
Body structure reaches design strength and carries out next layer of laying；Multilamellar reinforcement is laid successively solid by above step
Changing inclusion enclave, successively superposition is until reaching embankment design absolute altitude, between levels inclusion enclave muscle material closely
Contact superposition constitutes interaction integral reinforced structure.
One the most according to claim 1 high embankment roadbed packaging type reinforcement curing, it is characterised in that:
Described soil-solidified-agent, by ratio of weight and the number of copies, formula includes the following: Gypsum Fibrosum 4-10 part, quick lime 10-15
Part, flyash 15-24 part, blast-furnace cinder 32-45 part, silicate 16-32 part, chloride 4-8 part and
Sulfate 8-15 part.
One the most according to claim 1 high embankment roadbed packaging type reinforcement curing, it is characterised in that:
Described GSZ, for biaxial tension Plastics Geogrids or/and warp knit two-way terylene GSZ.
One the most according to claim 2 high embankment roadbed packaging type reinforcement curing, it is characterised in that:
Described silicate includes the mixture of dicalcium silicate, magnesium silicate and aluminium silicate, and weight ratio is 3:2-3:2-4.
One the most according to claim 2 high embankment roadbed packaging type reinforcement curing, it is characterised in that:
Described chloride includes the mixture of calcium chloride, sodium chloride and magnesium chloride, and weight ratio is 3-5:2-4:2.
One the most according to claim 2 high embankment roadbed packaging type reinforcement curing, it is characterised in that:
Described sulfate includes the mixture of aluminum sulfate, sodium sulfate and magnesium sulfate, and weight ratio is 2:2-4:2-3.
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| CN201610300790.4A CN106012733B (en) | 2016-05-09 | 2016-05-09 | High embankment roadbed packaging type reinforcement curing |
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| CN106894442A (en) * | 2017-03-02 | 2017-06-27 | 湖北工业大学 | A kind of reinforced sand soil barricade and construction method |
| CN107338692A (en) * | 2017-08-25 | 2017-11-10 | 湖北工业大学 | Rice hull ash Reinforced subgrade and its construction method |
| CN109235157A (en) * | 2018-09-19 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Soft base U-type groove basis package is soaked to pull-type reinforced earth railroad embankment structure |
| CN110512637A (en) * | 2019-08-30 | 2019-11-29 | 东南大学 | A kind of novel shock insulation composite foundation and its construction method |
| CN111005278A (en) * | 2019-12-23 | 2020-04-14 | 重庆交通大学 | Local reinforced embankment, construction method and rapid repairing and reinforcing method thereof |
| CN112411287A (en) * | 2020-11-11 | 2021-02-26 | 湖南省辰波建设有限公司 | Construction method for environment-friendly soil solidification and improvement of silty clay roadbed |
| CN113652912A (en) * | 2021-06-16 | 2021-11-16 | 淮阴工学院 | Road structure processing method based on reinforced alkaline residue improved soil |
| CN114635322A (en) * | 2021-12-23 | 2022-06-17 | 安徽省交通规划设计研究总院股份有限公司 | Ecological environment-friendly super-land-saving reverse slope-making roadbed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106894442A (en) * | 2017-03-02 | 2017-06-27 | 湖北工业大学 | A kind of reinforced sand soil barricade and construction method |
| CN107338692A (en) * | 2017-08-25 | 2017-11-10 | 湖北工业大学 | Rice hull ash Reinforced subgrade and its construction method |
| CN109235157A (en) * | 2018-09-19 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Soft base U-type groove basis package is soaked to pull-type reinforced earth railroad embankment structure |
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| CN111005278A (en) * | 2019-12-23 | 2020-04-14 | 重庆交通大学 | Local reinforced embankment, construction method and rapid repairing and reinforcing method thereof |
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| CN113652912A (en) * | 2021-06-16 | 2021-11-16 | 淮阴工学院 | Road structure processing method based on reinforced alkaline residue improved soil |
| CN114635322A (en) * | 2021-12-23 | 2022-06-17 | 安徽省交通规划设计研究总院股份有限公司 | Ecological environment-friendly super-land-saving reverse slope-making roadbed |
| CN114635322B (en) * | 2021-12-23 | 2024-03-19 | 安徽省交通规划设计研究总院股份有限公司 | Ecological environment-friendly super-land reverse slope subgrade |
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Effective date of registration: 20190218 Address after: 611930 5th Floor, 81 Jinpeng East Road, Pengzhou City, Chengdu City, Sichuan Province Patentee after: Sichuan Tianyi Petrochemical Engineering Co., Ltd. Address before: 150090 College of Civil Engineering, Harbin University of Technology, No. 73 Huanghe Road, Harbin, Heilongjiang Province Co-patentee before: Ling Xianchang Patentee before: Zhao Yingying |