CN106592570A - Foundation treatment process using pre-fabricated compact type iron tailing reinforced bodies - Google Patents
Foundation treatment process using pre-fabricated compact type iron tailing reinforced bodies Download PDFInfo
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- CN106592570A CN106592570A CN201611095904.2A CN201611095904A CN106592570A CN 106592570 A CN106592570 A CN 106592570A CN 201611095904 A CN201611095904 A CN 201611095904A CN 106592570 A CN106592570 A CN 106592570A
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- reinforcing body
- grouting
- pile
- tailings
- slip casting
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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
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to a foundation treatment process using pre-fabricated compact type iron tailing reinforced bodies. The process comprises the following steps: (1) determining the quantity and dimension of the iron tailing reinforced bodies according to a design requirement, wherein each of the iron tailing reinforced bodies is composed of a cylindrical structure and a reversed circular truncated cone structure which are integrated; a steel wire gauze or a bar-mat reinforcement is arranged in each of the iron tailing reinforced bodies, pile side grouting pipes are uniformly distributed along the wall of the steel wire gauze or the bar-mat reinforcement, a slurry discharging duct is arranged at the center of the steel wire gauze or the bar-mat reinforcement, and pile end grouting pipes are located at the center of the slurry discharging duct; (2) forming pre-drilled holes in pile positions by using a drilling machine, protecting the wall by using slurry, wherein the depth of the pre-drilled holes reaches a designed pile end supporting layer; (3) pressing the iron tailing reinforced bodies into the pre-drilled holes till the depth of the pre-drilled holes reaches a designed pile end supporting layer by virtue of a static pressure method, and discharging the wall-protecting slurry through the slurry discharging duct; and (4) grouting the pile side slurry pipes and setting the same 4-8 hours, then grouting the pile end grouting pipes, and stopping grouting if a grouting control index is reached to form an integral foundation.
Description
Technical field
The present invention relates to industrial residue utilization and building foundation treatment technical field, more particularly to a kind of to be squeezed using prefabricated
The basement process technique of close sections tailings reinforcing body.
Background technology
Iron milltailings are the Ore waste residues formed with iron mine digging and ore dressing.Typically adopt one ton of iron mine and can form about 3-5m3
Mine tailing, the annual mining activity of China defines substantial amounts of iron tailings.The discharge of mine tailing, accumulation occupy substantial amounts of soil money
Source, while the dust for being formed is also to environment.The comprehensive utilization of mine tailing is all subject to national policy emphasis to rouse all the time
Encourage and support.Technology more ripe in terms of building at present has such as the blockwork of ground laying, for partly replacing
Concrete fine aggregate etc..
The content of the invention
The present invention newly utilizes channel in order to further develop iron milltailings, improves on the basis of existing method of comprehensive utilization
A kind of utilization rate of iron milltailings, there is provided basement process technique using prefabricated compacted sections tailings reinforcing body.The technology of the present invention
Scheme is：
A kind of basement process technique using prefabricated compacted sections tailings reinforcing body, comprises the following steps：
（1）The quantity and size of iron milltailings reinforcing body are determined according to design requirement；The iron milltailings reinforcing body is justified by all-in-one-piece
Rod structure and inverted round stage structure composition, the diameter ratio of the inverted round stage structure upper and lower surface is 1.15 ~ 1.35, the iron milltailings
Reinforcing sets steel wire or bar-mat reinforcement in vivo, is evenly distributed with slip casting around pile pipe, steel wire or steel along steel wire wall or bar-mat reinforcement wall
The central authorities of muscle net are provided with plasma discharge duct, and pile end grouting pipe is located at plasma discharge duct center；
Slip casting around pile bottom of the tube connection diverter one and non-return valve one, top are provided with for connecting the connecting pipe of grouting pump
One；The pile end grouting pipe is provided with grouting stop-valve, pile end grouting bottom of the tube connection diverter two and non-return valve two, top be provided with for
The connecting pipe two of connection grouting pump；The diverter one, diverter two, non-return valve one, non-return valve two, connecting pipe one and connecting pipe
Two are respectively positioned on outside the reinforcing body；
（2）Prebored hole is formed in stake position using rig, and adopt mud off, the depth of the prebored hole reaches design stake end
Supporting course, preboring bore dia are identical with the lower surface diameter of the iron milltailings reinforcing body inverted round stage；
（3）Iron milltailings reinforcing body is pressed into by the bearing course at pile end that prebored hole to depth reaches design requirement using static pressure method, and will
Discharge in slurry coat method Jing plasma discharges duct；
（4）To the slip casting around pile pipe slip casting, and 4 ~ 8h is solidified, then to the pile end grouting pipe slip casting, reach grout injection control and refer to
Stop slip casting after mark, form complete ground.
In above-mentioned technique, the pile end grouting pipe, grouting stop-valve, diverter two, non-return valve two and connecting pipe two are in the step
Suddenly（4）To being attached in the iron milltailings reinforcing body before the pile end grouting pipe slip casting.
In above-mentioned technique, the manufacture method of the iron milltailings reinforcing body is：All-in-one-piece cylinder is made according to design requirement
The mould of structure and inverted round stage structure；According to iron milltailings：Cement：The quality proportioning of water is (5 ~ 5.5):(1~1.4):(1.2~
1.4) compound is prepared, adds adulterating agent, inject after stirring in the mould, vibrated successively, the demoulding, obtain institute after health preserving
Iron milltailings reinforcing body is stated, comprcssive strength is 6 ~ 10MPa.
In above-mentioned technique, the iron milltailings adopt basis《Iron tailings sand concrete application technology specification》In GB51032
The qualified tail medium coarse sand of specification inspection radiation and/or tail Extra-fine sand iron milltailings.
In above-mentioned technique, the column structure is highly 0.3 ~ 0.5m.
In above-mentioned technique, the inverted round stage structure height is more than 3m.
In above-mentioned technique, plasma discharge duct bottom is provided with only stock tank, installs grouting stop-valve, the plasma discharge in the only stock tank
A diameter of 100 ~ 300mm in duct.
In above-mentioned technique, the material of the slip casting around pile pipe and the pile end grouting pipe includes PVC, steel.
In above-mentioned technique, the non-return valve one and the non-return valve two are located at the diverter one and the diverter respectively
Two top.
In above-mentioned technique, the adulterating agent includes flyash, water reducer.
In above-mentioned technique, the bearing capacity of the complete ground reaches 200 ~ 400KPa.
Beneficial effects of the present invention are：
1st, the present invention is using industrial residue --- and, used as the raw material for making reinforcing body, the prefabricated compacted type reinforcing body of formation is strong for iron milltailings
Degree fully meets the requirement to basement process up to 6 ~ 10MPa, the Bearing Capacity of Composite Foundation after process up to 200 ~ 300KPa,
And technique waste residue is using the polluter and potential geological disaster source that original accumulation place had both been eliminated after finishing, again can be with
Vacate the soil of original occupancy.
2nd, the prefabricated compacted type reinforcing body of present invention design employs single-unit inverted round table shape, by round platform side wall soil compaction
Effect, makes reinforcing body preferably be combined with soil layer, is that reinforcing body side wall grouting is reinforced to form good stop grouting plug, to give full play to
Reinforcing body side friction power creates condition.And the present invention adopts side wall grouting and the Multiple-step mode of end slip casting to send out for abundant
Wave bearing capacity of pile tip and create advantage.
3rd, the present invention is easy to industrialized production, can pile up place in industrial residue and found the factory production, substantially reduce and produce into
This, improves production efficiency, it is adaptable to the reinforcing of various soil body grounds, applied range.
Description of the drawings
Fig. 1 is the reinforcing body structural representation of the present invention, wherein 1- connecting pipes two, 2- connecting pipes one, the circle of 3- reinforcing bodies
Rod structure, the inverted round stage structure of 4- reinforcing bodies, 5- steel wires（Muscle）Net, 6- slip casting around pile pipes, 7- pile end grouting pipes, 8- stop stock tank,
9- grouting stop-valves, 10- diverters one, 11- diverters two.
Fig. 2 is the profile in A-A faces in Fig. 1, wherein 14- plasma discharges duct.
Specific embodiment
The present invention is described in further details with specific embodiment below in conjunction with the accompanying drawings, described is the solution to the present invention
Release rather than limit.
Embodiment 1
A kind of basement process technique using prefabricated compacted sections tailings reinforcing body, in Liaoning, metallurgical works land used is implemented, bag
Include following steps：
（1）The quantity and size of iron milltailings reinforcing body are determined according to design requirement；The iron milltailings reinforcing body is high by all-in-one-piece
It is that the column structure 3 of 0.5m and the inverted round stage structure 4 highly for 3.5m are constituted to spend, and Fig. 1 and Fig. 2 provides the knot of the reinforcing body
Structure schematic diagram, the diameter ratio of 4 upper and lower surface of inverted round stage structure are 1.2, a diameter of 600mm of the lower surface, the ferrum
Tailings is reinforced and sets steel wire 5 in vivo, and the central authorities for being evenly distributed with slip casting around pile pipe 6, steel wire or bar-mat reinforcement along steel wire wall set
There is plasma discharge duct 14, plasma discharge duct bottom is provided with only stock tank 8, and pile end grouting pipe 7 is located at plasma discharge duct center, described
A diameter of 300mm in plasma discharge duct；
Slip casting around pile bottom of the tube connection diverter 1 and non-return valve one, top are provided with for connecting the connecting pipe of grouting pump
One 2；The pile end grouting pipe is provided with grouting stop-valve 9, and the grouting stop-valve 9 is installed in the only stock tank 8,7 bottom of pile end grouting pipe
Connection diverter 2 11 and non-return valve two, top are provided with for connecting the connecting pipe 21 of grouting pump；The diverter 1, point
Stream device 2 11, non-return valve one, non-return valve two, connecting pipe 1 and connecting pipe 21 are respectively positioned on outside the reinforcing body, the check
Valve one and the non-return valve two are located at the top of the diverter 1 and the diverter 2 11 respectively；
（2）Prebored hole is formed in stake position using rig, and adopt mud off, the depth of the prebored hole reaches design stake end
Supporting course, preboring bore dia are identical with the lower surface diameter of the iron milltailings reinforcing body inverted round stage；
（3）Iron milltailings reinforcing body is pressed into by the bearing course at pile end that prebored hole to depth reaches design requirement using static pressure method, and will
Discharge in slurry coat method Jing plasma discharges duct；
（4）To the slip casting around pile pipe slip casting, and 4h is solidified, then to the pile end grouting pipe slip casting, reach grout injection control index
After stop slip casting, form complete ground, bearing capacity reaches 300KPa.
In above-mentioned technique, the pile end grouting pipe, grouting stop-valve, diverter two, non-return valve two and connecting pipe two are in the step
Suddenly（4）To before the pile end grouting pipe slip casting install.
In above-mentioned technique, the manufacture method of the iron milltailings reinforcing body is：Reversed round bench shaped mould is made according to design requirement
Tool；According to iron milltailings：Cement：The quality proportioning of water is 5.0:1.4:1.2 prepare compound, add flyash, and consumption is cement
The 15% of consumption, injects after stirring in the mould, vibrates successively, the demoulding, obtains the iron milltailings reinforcing body after health preserving,
Comprcssive strength is 8.5MPa.
In above-mentioned technique, the iron milltailings adopt basis《Iron tailings sand concrete application technology specification》In GB51032
The qualified tail medium coarse sand iron milltailings of specification inspection radiation.
In above-mentioned technique, the material selection steel of the slip casting around pile pipe and the pile end grouting pipe.
Embodiment 2
A kind of basement process technique using prefabricated compacted sections tailings reinforcing body, implements in Liaoning food processing factory land used,
Comprise the following steps：
（1）The quantity and size of iron milltailings reinforcing body are determined according to design requirement；The iron milltailings reinforcing body is high by all-in-one-piece
It is that the column structure 3 of 0.5m and the inverted round stage structure 4 highly for 5m are constituted to spend, and Fig. 1 and Fig. 2 provides the structure of the reinforcing body
Schematic diagram, the diameter ratio of 4 upper and lower surface of inverted round stage structure are 1.25, a diameter of 400mm of the lower surface, the ferrum tail
Sand is reinforced and sets steel wire 5 in vivo, the central authorities that are evenly distributed with slip casting around pile pipe 6, steel wire or bar-mat reinforcement along steel wire wall are provided with
Plasma discharge duct 14, plasma discharge duct bottom are provided with only stock tank 8, and pile end grouting pipe 7 is located at plasma discharge duct center, the row
A diameter of 250mm in slurry duct；
Slip casting around pile bottom of the tube connection diverter 1 and non-return valve one, top are provided with for connecting the connecting pipe of grouting pump
One 2；The pile end grouting pipe is provided with grouting stop-valve 9, and the grouting stop-valve 9 is installed in the only stock tank 8,7 bottom of pile end grouting pipe
Connection diverter 2 11 and non-return valve two, top are provided with for connecting the connecting pipe 21 of grouting pump；The diverter 1, point
Stream device 2 11, non-return valve one, non-return valve two, connecting pipe 1 and connecting pipe 21 are respectively positioned on outside the reinforcing body, the check
Valve one and the non-return valve two are located at the top of the diverter 1 and the diverter 2 11 respectively；
（2）Prebored hole is formed in stake position using rig, and adopt mud off, the depth of the prebored hole reaches design stake end
Supporting course, preboring bore dia are identical with the lower surface diameter of the iron milltailings reinforcing body inverted round stage；
（3）Iron milltailings reinforcing body is pressed into by the bearing course at pile end that prebored hole to depth reaches design requirement using static pressure method, and will
Discharge in slurry coat method Jing plasma discharges duct；
（4）To the slip casting around pile pipe slip casting, and 6h is solidified, then to the pile end grouting pipe slip casting, reach grout injection control index
After stop slip casting, form complete ground, bearing capacity reaches 250KPa.
In above-mentioned technique, the pile end grouting pipe, grouting stop-valve, diverter two, non-return valve two and connecting pipe two are in the step
Suddenly（4）To before the pile end grouting pipe slip casting install.
In above-mentioned technique, the manufacture method of the iron milltailings reinforcing body is：Reversed round bench shaped mould is made according to design requirement
Tool；According to iron milltailings：Cement：The quality proportioning of water is 5.2:1.1:1.3 prepare compound, add flyash, and consumption is cement
The 12% of consumption, injects after stirring in the mould, vibrates successively, the demoulding, obtains the iron milltailings reinforcing body after health preserving,
Comprcssive strength is 6.5MPa.
In above-mentioned technique, the iron milltailings adopt basis《Iron tailings sand concrete application technology specification》In GB51032
The qualified tail Extra-fine sand iron milltailings of specification inspection radiation.
In above-mentioned technique, the material selection steel of the slip casting around pile pipe and the pile end grouting pipe.
Embodiment 3
A kind of basement process technique using prefabricated compacted sections tailings reinforcing body, in Liaoning highway land implement, including with
Lower step：
（1）The quantity and size of iron milltailings reinforcing body are determined according to design requirement；The iron milltailings reinforcing body is high by all-in-one-piece
It is that the column structure 3 of 0.5m and the inverted round stage structure 4 highly for 8m are constituted to spend, and Fig. 1 and Fig. 2 provides the structure of the reinforcing body
Schematic diagram, the diameter ratio of 4 upper and lower surface of inverted round stage structure are 1.2, a diameter of 600mm of the lower surface, the ferrum tail
Sand is reinforced and sets steel wire 5 in vivo, and the central authorities for being evenly distributed with slip casting around pile pipe 6, steel wire or bar-mat reinforcement along steel wire wall are provided with
Plasma discharge duct 14, plasma discharge duct bottom are provided with only stock tank 8, and pile end grouting pipe 7 is located at plasma discharge duct center, the row
A diameter of 300mm in slurry duct；
Slip casting around pile bottom of the tube connection diverter 1 and non-return valve one, top are provided with for connecting the connecting pipe of grouting pump
One 2；The pile end grouting pipe is provided with grouting stop-valve 9, and the grouting stop-valve 9 is installed in the only stock tank 8,7 bottom of pile end grouting pipe
Connection diverter 2 11 and non-return valve two, top are provided with for connecting the connecting pipe 21 of grouting pump；The diverter 1, point
Stream device 2 11, non-return valve one, non-return valve two, connecting pipe 1 and connecting pipe 21 are respectively positioned on outside the reinforcing body, the check
Valve one and the non-return valve two are located at the top of the diverter 1 and the diverter 2 11 respectively；
（2）Prebored hole is formed in stake position using rig, and adopt mud off, the depth of the prebored hole reaches design stake end
Supporting course, preboring bore dia are identical with the lower surface diameter of the iron milltailings reinforcing body inverted round stage；
（3）Iron milltailings reinforcing body is pressed into by the bearing course at pile end that prebored hole to depth reaches design requirement using static pressure method, and will
Discharge in slurry coat method Jing plasma discharges duct；
（4）To the slip casting around pile pipe slip casting, and 8h is solidified, then to the pile end grouting pipe slip casting, reach grout injection control index
After stop slip casting, form complete ground, bearing capacity reaches 250KPa.
In above-mentioned technique, the pile end grouting pipe, grouting stop-valve, diverter two, non-return valve two and connecting pipe two are in the step
Suddenly（4）To before the pile end grouting pipe slip casting install.
In above-mentioned technique, the manufacture method of the iron milltailings reinforcing body is：Reversed round bench shaped mould is made according to design requirement
Tool；According to iron milltailings：Cement：The quality proportioning of water is 5.0:1.2:1.3 prepare compound, add flyash, and consumption is cement
The 15% of consumption, injects after stirring in the mould, vibrates successively, the demoulding, obtains the iron milltailings reinforcing body after health preserving,
Comprcssive strength is 6.5MPa.
In above-mentioned technique, the iron milltailings adopt basis《Iron tailings sand concrete application technology specification》In GB51032
The qualified tail medium coarse sand of specification inspection radiation and tail Extra-fine sand iron milltailings.
In above-mentioned technique, the material selection PVC of the slip casting around pile pipe and the pile end grouting pipe.
Claims (10)
1. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body, it is characterised in that comprise the following steps：
（1）The quantity and size of iron milltailings reinforcing body are determined according to design requirement；The iron milltailings reinforcing body is justified by all-in-one-piece
Rod structure and inverted round stage structure composition, the diameter ratio of the inverted round stage structure upper and lower surface is 1.15 ~ 1.35, the iron milltailings
Reinforcing sets steel wire or bar-mat reinforcement in vivo, is evenly distributed with slip casting around pile pipe, steel wire or steel along steel wire wall or bar-mat reinforcement wall
The central authorities of muscle net are provided with plasma discharge duct, and pile end grouting pipe is located at plasma discharge duct center；
Slip casting around pile bottom of the tube connection diverter one and non-return valve one, top are provided with for connecting the connecting pipe of grouting pump
One；The pile end grouting pipe is provided with grouting stop-valve, pile end grouting bottom of the tube connection diverter two and non-return valve two, top be provided with for
The connecting pipe two of connection grouting pump；The diverter one, diverter two, non-return valve one, non-return valve two, connecting pipe one and connecting pipe
Two are respectively positioned on outside the reinforcing body；
（2）Prebored hole is formed in stake position using rig, and adopt mud off, the depth of the prebored hole reaches design stake end
Supporting course, preboring bore dia are identical with the lower surface diameter of the iron milltailings reinforcing body inverted round stage；
（3）Iron milltailings reinforcing body is pressed into by the bearing course at pile end that prebored hole to depth reaches design requirement using static pressure method, and will
Discharge in slurry coat method Jing plasma discharges duct；
（4）To the slip casting around pile pipe slip casting, and 4 ~ 8h is solidified, then to the pile end grouting pipe slip casting, reach grout injection control and refer to
Stop slip casting after mark, form complete ground.
2. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body according to claim 1, its feature
It is the pile end grouting pipe, grouting stop-valve, diverter two, non-return valve two and connecting pipe two in the step（4）To the stake
It is attached in the iron milltailings reinforcing body before the Grouting Pipe slip casting of end.
3. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body according to claim 1, its feature
It is that the manufacture method of the iron milltailings reinforcing body is：All-in-one-piece column structure and inverted round stage structure are made according to design requirement
Mould；According to iron milltailings：Cement：The quality proportioning of water is (5 ~ 5.5):(1~1.4):(1.2 ~ 1.4) compound is prepared, is added
Adulterating agent, injects after stirring in the mould, vibrates successively, the demoulding, obtains the iron milltailings reinforcing body, resistance to compression after health preserving
Intensity is 6 ~ 10MPa.
4. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body according to claim 3, its feature
It is that the iron milltailings adopt basis《Iron tailings sand concrete application technology specification》In GB51032 specifications inspection radiation it is qualified
Tail medium coarse sand and/or tail Extra-fine sand iron milltailings.
5. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body according to claim 1, its feature
Be the column structure highly for 0.3 ~ 0.5m, the inverted round stage structure height is more than 3m.
6. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body according to claim 1, its feature
It is that plasma discharge duct bottom is provided with only stock tank, described stopping install in stock tank grouting stop-valve, a diameter of the 100 of the plasma discharge duct
~300mm。
7. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body according to claim 1, its feature
It is that the material of the slip casting around pile pipe and the pile end grouting pipe includes PVC, steel.
8. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body according to claim 1, its feature
It is top that the non-return valve one and the non-return valve two are located at the diverter one and the diverter two respectively.
9. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body according to claim 1, its feature
It is that the adulterating agent includes flyash, water reducer.
10. a kind of basement process technique using prefabricated compacted sections tailings reinforcing body according to claim 1, its feature
It is that the bearing capacity of the complete ground reaches 200 ~ 400KPa.
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| CN201611095904.2A CN106592570B (en) | 2016-12-02 | 2016-12-02 | A kind of basement process technique using prefabricated compacted sections tailings reinforcing body |
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|---|---|---|---|
| CN201611095904.2A CN106592570B (en) | 2016-12-02 | 2016-12-02 | A kind of basement process technique using prefabricated compacted sections tailings reinforcing body |
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| CN106592570B CN106592570B (en) | 2019-02-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978636A (en) * | 2018-08-28 | 2018-12-11 | 中冶沈勘工程技术有限公司 | A kind of compacted type shaped pile of CHARACTERISTICS OF TAILINGS SAND and its composite foundation treatment process |
| CN111501743A (en) * | 2020-04-23 | 2020-08-07 | 中核第四研究设计工程有限公司 | Titanium white tailing curing method |
| CN112649263A (en) * | 2020-12-11 | 2021-04-13 | 浙江科技学院 | Cylindrical sample undisturbed soaking type circumferential grouting sample preparation instrument and sample preparation method |
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| CN103061328A (en) * | 2013-01-29 | 2013-04-24 | 方泰建设集团有限公司 | Post-grouting gravel pile with sand wall wing plates and construction method |
| CN105804083A (en) * | 2016-05-06 | 2016-07-27 | 同济大学 | Grouting pipeline device, conical special-shaped pile and application method thereof |
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| JPH0247421A (en) * | 1988-08-06 | 1990-02-16 | Shin Gijutsu Koei Kk | Bag-shaped ground anchor body and anchoring mechanism therefor |
| US20060159525A1 (en) * | 2005-01-03 | 2006-07-20 | Ramzy Moumneh | Grout injecting/structure anchoring system |
| CN102465524A (en) * | 2010-11-11 | 2012-05-23 | 上海市政工程设计研究总院 | Double radial mesh-cage sand-gravel pile and construction process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978636A (en) * | 2018-08-28 | 2018-12-11 | 中冶沈勘工程技术有限公司 | A kind of compacted type shaped pile of CHARACTERISTICS OF TAILINGS SAND and its composite foundation treatment process |
| CN111501743A (en) * | 2020-04-23 | 2020-08-07 | 中核第四研究设计工程有限公司 | Titanium white tailing curing method |
| CN112649263A (en) * | 2020-12-11 | 2021-04-13 | 浙江科技学院 | Cylindrical sample undisturbed soaking type circumferential grouting sample preparation instrument and sample preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106592570B (en) | 2019-02-15 |
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