CN106087945A - Earth anchor and counter-force load precompressed soft foundation processing method - Google Patents
Earth anchor and counter-force load precompressed soft foundation processing method Download PDFInfo
- Publication number
- CN106087945A CN106087945A CN201610399390.3A CN201610399390A CN106087945A CN 106087945 A CN106087945 A CN 106087945A CN 201610399390 A CN201610399390 A CN 201610399390A CN 106087945 A CN106087945 A CN 106087945A
- Authority
- CN
- China
- Prior art keywords
- force
- ground
- counter
- earth anchor
- anchor pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000012856 packing Methods 0.000 claims abstract description 12
- 239000011435 rock Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 27
- 239000002689 soil Substances 0.000 claims description 19
- 238000004062 sedimentation Methods 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011549 displacement method Methods 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- 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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
- E02D5/801—Ground anchors driven by screwing
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of earth anchor, including ground anchor pole, rock bolt shank top, ground is provided with puts forth effort parts and counter-force charger, and described counter-force charger is applied with pull out force by putting forth effort parts anchor pole over the ground, and is conducted to counter-force charger body by the counteracting force of uplift force.The invention also discloses a kind of counter-force utilizing described earth anchor simultaneously and load precompressed soft foundation processing method, step is as follows: place the steel plate of band center preformed hole at pending localized ground, by earth anchor through steel plate center preformed hole, carry out lower brill, make to pass or substantially through treatment region soft layer bottom ground anchor pole；Being rotatably connected on thread segment by nut by packing ring, make spring be compressed, the counteracting force utilizing spring anchor pole to be over the ground applied with pull out force carries out precompressed loading to the steel plate on ground.The present invention need not preloading Tu Yuan, can avoid causing foundation instability problem due to preloading excessive velocities.Earth anchor and steel plain flexible arrangement, have good engineering adaptability.
Description
Technical field
The invention belongs to construction method field, be specifically related to be a kind of earth anchor and counter-force loading precompressed soft foundation processing method.
Background technology
Foundation treatment technology is to improve foundation bearing capacity, improves soil deformation condition or penetration property and the people that takes
Building site base treating method.Existing foundation treatment technology mainly has: heavy-tamping method, preloading method (include that preloading and vacuum are pre-
Platen press), displacement method, vibroflotation, Deep Mixing Method and Sand Pile Method etc..Wherein preloading method utilization in Practical Project is the most
Extensively.
The problem that at present preloading method still suffers from some actual application: wherein needed for preloading the duration is relatively long, need
A large amount of preloading Tu Yuan, the process degree of depth is wanted to be controlled by preloading load and draining board length, foundation instability may be caused；Vacuum is pre-
Platen press is high to technology requirement, treatment effect is limited to vacuum level, the general process degree of depth is shallower.
Summary of the invention
For soft soil foundation, it is considered to the defect that above-mentioned preloading method exists, the invention provides a kind of earth anchor and one is right
Earth anchor is applied with pull out force, utilizes earth anchor self resistance to plucking, by the effect counter-force of uplift force, foundation soil body is carried out precompressed and adds
The basement process way carried.
The present invention solves concrete technical problems and the technical scheme is that
Earth anchor includes ground anchor pole, and its shaft top is provided with puts forth effort parts and counter-force charger, and described counter-force adds and carries
Put and be applied with pull out force by putting forth effort parts anchor pole over the ground, and the counteracting force of uplift force is conducted to counter-force charger body
Side.
As preferably, described put forth effort parts fixed position in ground rock bolt shank and can adjust up and down.
As preferably, tapped section described of rock bolt shank top, ground, described puts forth effort parts for being securable to screw thread
Packing ring in section；Described counter-force charger is spring.
As preferably, described ground anchor pole inner hollow, shaft sidewall offers several osculums.
Based on above-mentioned earth anchor technical scheme, a kind of counter-force utilizing described earth anchor loads precompressed soft foundation processing method, step
As follows:
Step 1. places the steel plate of band center preformed hole on pending region (bottom has soft layer) ground, by earth anchor
Carry out lower brill through steel plate center preformed hole, make to pass or substantially through treatment region soft layer bottom ground anchor pole；
Packing ring is rotatably connected on thread segment by step 2. by nut, makes spring be compressed, and utilizes spring anchor pole over the ground to execute
The counteracting force adding uplift force carries out precompressed loading to the steel plate on ground；
Step 3. is at set intervals or after certain sedimentation value, repetition step 2, when unit interval sedimentation value increment is less than pre-
If during value, precompressed loading procedure terminates.
As preferably, in described step 2, first hydraulic jack is positioned on steel plate, utilizes hydraulic jack pair
The parts of putting forth effort of ground anchor pole carry out jacking, reach to preset after prefabricating load, by packing ring by nut on thread segment, then remove
Falling hydraulic jack, the counteracting force utilizing spring anchor pole to be over the ground applied with pull out force carries out precompressed loading to the steel plate on ground.
As preferably, after precompressed loading procedure terminates, earth anchor and steel plate can be taken out, to recycle；Or do not take out
Earth anchor, as the vertical reinforcement in stabilization zone, improves foundation bearing capacity as reinforcement material in soil.
As preferably, it is used in combination with preloading, certain preloading height carries out step 1～3, to reduce preloading
Preloading height needed for preloading method.
As preferably, top, soft soil foundation place should carry out pretreatment: i.e. before laying steel plate, lays one layer of sand pad
Layer is as drainage channel, and arranges respective row ditch and drainage equipment.
As preferably, using ground anchor pole as well-point pipe, in order to place well-points dewatering.
Beneficial effects of the present invention is as follows:
1. can need not preloading Tu Yuan, or be used in combination with preloading or vacuum method, greatly reduce and set
The required heap carrying capacity of meter or vacuum；
2. during can avoiding preloading, cause foundation instability problem due to preloading excessive velocities；
Porous in the most prefabricated earth anchor hollow and wall, can be as vertical drainage passage.It also is used as well-point pipe if desired to use
With well-points dewatering, save cost；
4. equipment all can reuse, better economic benefit；
5. can solve preloading and vacuum method additional stress along with the degree of depth increase stress spread problem,
The additional stress Relatively centralized of earth anchor depth bounds and uniformly, beneficially soil solidifying；
6. earth anchor and steel plain flexible arrangement, can effectively process various working, have good engineering adaptability；
Accompanying drawing explanation
Fig. 1 is to use earth anchor counter-force to load the sectional schematic diagram that soft soil foundation is processed by preloading method.
In figure: ground anchor pole 1, nut 2, packing ring 3, spring 4, thread segment 5, steel plate 6, sand bedding course 7, soft layer 8
With relatively good soil layer 9.
Detailed description of the invention
The present invention is further described with implementing step below in conjunction with the accompanying drawings.
As it is shown in figure 1, for using earth anchor counter-force to load the sectional schematic diagram that soft soil foundation is processed by preloading method.This
Invention is divided into two parts, and the earth anchor of a kind of particular design and soft soil foundation counter-force based on this earth anchor load preloading method.
Earth anchor includes the ground anchor pole 1 of routine, and it differs primarily in that: ground anchor pole 1 shaft top is provided with puts forth effort parts with anti-
Force loading device, described counter-force charger is applied with pull out force by putting forth effort parts anchor pole 1 over the ground, utilizes earth anchor self resistance to plucking
Property, and the counteracting force of uplift force is conducted to counter-force charger body.Counter-force charger can be any can
To putting forth effort parts and be applied with the device of pull out force, such as the equipment such as spring, jack.Putting forth effort parts is to carry any can counter-force being added
Put the power conduction parts to ground anchor pole 1 of applying, as projection on anchor pole 1 or outward element etc..Putting forth effort parts should be able to be
Realize adjusting up and down on ground anchor pole 1 shaft, and realize in relevant position fixing.
The present embodiment provides a kind of preferred implementation: tapped section 5 of ground anchor pole 1 shaft top, putting forth effort parts is
The packing ring 3 being securable on thread segment 5；Packing ring 3 internal diameter is more bigger than earth anchor diameter can freely be moved up and down or can also weld
On nut 2, thread segment 5 realizes slide up and down.Counter-force charger is the spring 4 that coefficient of elasticity is bigger.It addition, in order to
Make Soft Soil Layer realizes Quick drainage, ground anchor pole 1 inner hollow, shaft sidewall offer several osculums from top to bottom,
Water in Soft Soil Layer can enter ground anchor pole 1 inner chamber by osculum under precompression effect, and is finally discharged by sand bedding course.
Above-mentioned earth anchor can coordinate with steel plate 6, it is achieved soft soil foundation counter-force loads precompressed.The method is specific as follows:
First, at top, soft soil foundation place one layer of sand bedding course 7 of laying as drainage channel, and respective row ditch is arranged
And drainage equipment, its principle is identical with preloading.Then utilize earth anchor to its carry out counter-force load precompressed:
Step 1., according to place planar environment, arranges prefabricated square (band centre bore) steel plate 6.One can be left between steel plate 6
Fixed gap carries out splicing and lays reinforcing area.Earth anchor passes square plate 6 center preformed hole, carries out lower brill, makes at the bottom of ground anchor pole
Portion passes or substantially through treatment region soft layer 8, enters relatively good soil layer 9, forms holding force.
Packing ring 3 is rotatably connected on thread segment 5 by step 2. by nut, tightens nut 2, makes spring 4 be compressed,
The counteracting force utilizing spring 4 anchor pole 1 to be over the ground applied with pull out force carries out precompressed loading to the steel plate 6 on ground；
Step 3. there will be sedimentation due to foundation surface in consolidation process, causes a certain degree of precompression to relax, needs
(or certain sedimentation value) to repeat fastening nut 2 and to increase the operation that precompressed loads at set intervals.When settling no longer
Development or increases slowly (unit interval sedimentation value increment is less than preset value), it is believed that precompressed loading procedure terminates.Precompressed adds
After load process terminates, earth anchor and steel plate 6 are taken out, to recycle；Or do not take out earth anchor, vertically increase as stabilization zone
Qiang Ti, improves foundation bearing capacity as reinforcement material in soil.If desired can also be using ground anchor pole as well-point pipe, in order to place well
Point dewatering.
It is true that when needs loaded value is bigger, by manual fastening nut 2, it is impossible to make spring reach to design pretightning force.
Therefore hydraulic jack can be positioned on steel plate 6, profit by right angle setting loop bar (or other put forth effort parts) on earth anchor
Jacking is carried out with the loop bar of hydraulic jack anchor pole 1 over the ground.After reaching to preset prefabricating load, then packing ring 3 is screwed by nut 2
On thread segment 5, now remove hydraulic jack, utilize spring 4 anchor pole 1 to be over the ground applied with the counteracting force of pull out force on ground
Steel plate 6 carry out precompressed loading.The method can easily make nut to the pretightning force of design.
It addition, this method can also be used in combination with preloading.First conventional preloading part soil on foundation surface
Source, lays steel plate on certain preloading height and carries out above-mentioned earth anchor counter-force loading preloading method, owing to this counter-force loads precompression
Exist, the preloading height needed for preloading can be reduced.
Embodiment described above is the one preferably scheme of the present invention, and so it is not intended to limiting the invention.Have
Close the those of ordinary skill of technical field, without departing from the spirit and scope of the present invention, it is also possible to make various change
Change and modification.The technical scheme that the most all modes taking equivalent or equivalent transformation are obtained, all falls within the guarantor of the present invention
In the range of protecting.
Claims (10)
1. an earth anchor, including ground anchor pole, it is characterised in that rock bolt shank top, ground is provided with puts forth effort parts and counter-force adds and carries
Putting, described counter-force charger is applied with pull out force by putting forth effort parts anchor pole over the ground, utilizes earth anchor self resistance to plucking, and by upper
The counteracting force of pull out force conducts to counter-force charger body.
2. earth anchor as claimed in claim 1, it is characterised in that described puts forth effort parts fixed position in ground rock bolt shank
Can adjust up and down.
3. earth anchor as claimed in claim 1, it is characterised in that tapped section described of rock bolt shank top, ground, described
Putting forth effort parts is the packing ring being fixed on thread segment；Described counter-force charger is spring.
4. earth anchor as claimed in claim 1, it is characterised in that described ground anchor pole inner hollow, shaft sidewall offers
Several osculums.
5. the counter-force utilizing earth anchor described in claim 3 loads precompressed soft foundation processing method, it is characterised in that step is such as
Under:
Step 1. places the steel plate of band center preformed hole at pending localized ground, by earth anchor through steel plate center preformed hole, enters
Row is lower to be bored, and makes to pass or substantially through treatment region soft layer bottom ground anchor pole；
Packing ring is rotatably connected on thread segment by step 2. by nut, makes spring be compressed, and utilizes spring anchor pole to be over the ground applied with
The counteracting force of pull out force carries out precompressed loading to the steel plate on ground；
Step 3. is at set intervals or after certain sedimentation value, repetition step 2, when unit interval sedimentation value increment is less than preset value
Time, precompressed loading procedure terminates.
6. counter-force as claimed in claim 5 loads precompressed soft foundation processing method, it is characterised in that in described step 2, first
Hydraulic jack is positioned on steel plate, utilizes the parts of putting forth effort of hydraulic jack anchor pole over the ground to carry out jacking, reach to preset in advance
After pressure load, by packing ring by nut on thread segment, then remove hydraulic jack, utilize spring anchor pole to be over the ground applied with
The counteracting force of pull out force carries out precompressed loading to the steel plate on ground.
7. counter-force as claimed in claim 5 loads precompressed soft foundation processing method, it is characterised in that precompressed loading procedure terminates
After, earth anchor and steel plate can be taken out, to recycle；Or do not take out earth anchor, as the vertical reinforcement in stabilization zone, as
In soil, reinforcement material improves foundation bearing capacity.
8. counter-force as claimed in claim 5 loads precompressed soft foundation processing method, it is characterised in that combines with preloading and makes
With, certain preloading height carries out step 1～3, to reduce the preloading height needed for preloading.
9. counter-force as claimed in claim 5 loads precompressed soft foundation processing method, it is characterised in that top, soft soil foundation place
Lay one layer of sand bedding course as drainage channel, and arrange respective row ditch and drainage equipment.
10. counter-force as claimed in claim 5 loads precompressed soft foundation processing method, it is characterised in that using ground anchor pole as well point
Pipe, in order to place well-points dewatering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399390.3A CN106087945B (en) | 2016-06-07 | 2016-06-07 | Earth anchor and counter-force load precompressed soft foundation processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399390.3A CN106087945B (en) | 2016-06-07 | 2016-06-07 | Earth anchor and counter-force load precompressed soft foundation processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106087945A true CN106087945A (en) | 2016-11-09 |
| CN106087945B CN106087945B (en) | 2018-07-31 |
Family
ID=57227409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399390.3A Expired - Fee Related CN106087945B (en) | 2016-06-07 | 2016-06-07 | Earth anchor and counter-force load precompressed soft foundation processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106087945B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023006A (en) * | 2017-03-21 | 2017-08-08 | 吉林大学 | Soft base face anchorage method |
| CN108442357A (en) * | 2018-05-16 | 2018-08-24 | 浙江大学城市学院 | A kind of prestress anchorage cable united drainage plate prepressing device and method for processing foundation |
| CN108952217A (en) * | 2018-07-31 | 2018-12-07 | 深圳市律远汇智科技有限公司 | A kind of soil support construction for green building |
| CN113216144A (en) * | 2021-05-11 | 2021-08-06 | 铁科院(深圳)研究设计院有限公司 | Method for performing foundation treatment by adopting anchor cable prepressing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1566539A (en) * | 2003-06-12 | 2005-01-19 | 梁闽 | Self-anchoring vacuum compaction method |
| CN1584220A (en) * | 2003-08-18 | 2005-02-23 | 梁闽 | Composite foundation comprehensive treatment with self anchored vacuum compact rigid piles |
| CN102242546A (en) * | 2010-05-12 | 2011-11-16 | 梁闽 | Method and device for regulating and controlling deformation of foundation by utilizing pullout resistance of reinforcing elements |
| CN202882966U (en) * | 2012-10-24 | 2013-04-17 | 西安科技大学 | Recoverable soft rock self-tapping anchor rod |
| CN103195060A (en) * | 2013-04-01 | 2013-07-10 | 山东科技大学 | Soft foundation pre-stressed anchor rod reinforced structure and use thereof |
| CN104790413A (en) * | 2015-04-21 | 2015-07-22 | 常州工学院 | Self-pressurization protecting device and method thereof for keeping expansive soil cut slope stable |
| JP2015145607A (en) * | 2014-01-31 | 2015-08-13 | 孝幸 阿部 | Recovery method of ground anchor fastening device |
-
2016
- 2016-06-07 CN CN201610399390.3A patent/CN106087945B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1566539A (en) * | 2003-06-12 | 2005-01-19 | 梁闽 | Self-anchoring vacuum compaction method |
| CN1584220A (en) * | 2003-08-18 | 2005-02-23 | 梁闽 | Composite foundation comprehensive treatment with self anchored vacuum compact rigid piles |
| CN102242546A (en) * | 2010-05-12 | 2011-11-16 | 梁闽 | Method and device for regulating and controlling deformation of foundation by utilizing pullout resistance of reinforcing elements |
| CN202882966U (en) * | 2012-10-24 | 2013-04-17 | 西安科技大学 | Recoverable soft rock self-tapping anchor rod |
| CN103195060A (en) * | 2013-04-01 | 2013-07-10 | 山东科技大学 | Soft foundation pre-stressed anchor rod reinforced structure and use thereof |
| JP2015145607A (en) * | 2014-01-31 | 2015-08-13 | 孝幸 阿部 | Recovery method of ground anchor fastening device |
| CN104790413A (en) * | 2015-04-21 | 2015-07-22 | 常州工学院 | Self-pressurization protecting device and method thereof for keeping expansive soil cut slope stable |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023006A (en) * | 2017-03-21 | 2017-08-08 | 吉林大学 | Soft base face anchorage method |
| CN108442357A (en) * | 2018-05-16 | 2018-08-24 | 浙江大学城市学院 | A kind of prestress anchorage cable united drainage plate prepressing device and method for processing foundation |
| CN108442357B (en) * | 2018-05-16 | 2024-10-18 | 浙江大学城市学院 | Pre-stressing anchor cable combined drainage plate pre-pressing device and foundation treatment method |
| CN108952217A (en) * | 2018-07-31 | 2018-12-07 | 深圳市律远汇智科技有限公司 | A kind of soil support construction for green building |
| CN113216144A (en) * | 2021-05-11 | 2021-08-06 | 铁科院(深圳)研究设计院有限公司 | Method for performing foundation treatment by adopting anchor cable prepressing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106087945B (en) | 2018-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106087945A (en) | Earth anchor and counter-force load precompressed soft foundation processing method | |
| ITMI962520A1 (en) | PROCEDURE TO INCREASE THE LOAD OF GROUND FOUNDATION FOR BUILDING CONSTRUCTION | |
| CN106368219B (en) | A kind of the support reinforcement structure and construction method of deep basal pit | |
| CN101886393B (en) | Construction method of combined foundation ditch support | |
| AU2018248738A1 (en) | Method for improving the mechanical and hydraulic characteristics of soils | |
| CN105022925A (en) | Optimization design method for reinforcing side slope by using prestressed anchor rod and composite soil nails | |
| US20050158128A1 (en) | Method for consolidating foundation soils or for lifting very heavy or very large structures requiring the application of a pressure of more than 500 kpa | |
| Sharma | A model study of micropiles subjected to lateral loading and oblique pull | |
| CN100595397C (en) | Anti-floating construction method by combination of bar-planting and anchoring-bolt | |
| CN117344756A (en) | Side slope supporting device and construction method thereof | |
| Zhang et al. | Numerical evaluation of uplifting effect for upper structure by grouting | |
| Diana et al. | Small-scale experimental investigation on the behaviour of nailed slab system in expansive soil | |
| KR100475443B1 (en) | Reinforcement method for construction of underground | |
| CN107313468A (en) | A kind of seepage proof curtain for releasing collapsible loess foundation settlement by soaking is with level every infiltration level structure and method | |
| Liang et al. | High vacuum densification method for soft soil improvement | |
| CN103670444B (en) | Roadway floor supporting and protection structure and construction method thereof | |
| CN208235612U (en) | Existing building terrace differential settlement reinforcing and leveling repairs structure | |
| AU2019101315A4 (en) | A method and apparatus | |
| RU2731969C1 (en) | Slab foundation on non-uniform compressible base with possibility of adjusting of heeling | |
| CN105887795B (en) | The long counter-force loading preloading method of Abutment Back soft soil foundation gradual change stake | |
| RU2552571C2 (en) | Design and method for erection of non-penetratable foundation | |
| CN106087626B (en) | Slim hole club-footed pile counter-force loads preloading method | |
| CN108301400A (en) | Hollow draining anchor draws friction pile and its construction method | |
| RU2678217C1 (en) | Reinforced sand foundation pad | |
| Singh et al. | Upgrading existing footings with micro-piles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |