CN202090356U - Novel composite pile foundation - Google Patents
Novel composite pile foundation Download PDFInfo
- Publication number
- CN202090356U CN202090356U CN201020698147XU CN201020698147U CN202090356U CN 202090356 U CN202090356 U CN 202090356U CN 201020698147X U CN201020698147X U CN 201020698147XU CN 201020698147 U CN201020698147 U CN 201020698147U CN 202090356 U CN202090356 U CN 202090356U
- Authority
- CN
- China
- Prior art keywords
- pipe
- power transmission
- transmission pipe
- pile foundation
- force transmitting
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a novel composite pile foundation and a usage method thereof. A plurality of pressure injecting holes are distributed in the wall of a circular pipe of a force transmitting pipe in a quincunx way; a grouting pipe is arranged in the force transmitting pipe; a seal ring is arranged between the outer wall at the lower end of the grouting pipe and the inner wall of the force transmitting pipe; a cement concrete transmitting pump is arranged at a cement concrete charging interface at the upper end of the grouting pipe; the upper end of the force transmitting pipe is sheathed with a slurry seal cover; the lower part of the force transmitting pipe is provided with a segregation board; the port of the force transmitting pipe at the lower part of the segregation board is provided with a cone sharp body in an inserting way; and the exposed diameter of the upper end of the cone sharp body is slightly larger than the outer diameter of the force transmitting pipe. During constructing, materials, the length, the diameter, the wall depth and the grouting pipe hoisting height of the force transmitting pipe are ensured according to the requirements of the building engineering and the condition of the soil quality, and finally a larger-range composite foundation reinforcing region which takes the force transmitting pipe as a center is formed, i.e. a plurality of single-pile foundations. The single-pile foundations are distributed into a group-pile foundation. Due to the foundation reinforcing technology of the novel composite pile foundation, the reinforced foundation is observably higher in bearing capacity, and the novel composite pile foundation is easy to operate, high in work efficiency and short in construction period, so that the construction cost of the building engineering is greatly reduced.
Description
Technical field
Utility model originally relate to a kind of NEW TYPE OF COMPOSITE stake () basis.
Background technology
China's soft foundation classification is many, and it is wide to distribute, and this natural ground often can not satisfy the requirement of building to ground.In the last few years, development along with foundation treatment technology and theory of composite foundation, composite foundation technology is used widely in various places, as basis of multistory building and high rise building foundation and bridge, embankment, large tracts of land stockyard, airport, high-grade highway, railway etc.
Composite foundation technology claims artificial foundation's technology again, is meant by ground to handle, and the soil mass property of natural ground stabilization zone is enhanced or is replaced, or in natural ground reinforcement material is set.Stabilization zone is made up of the natural ground soil body and enhancing body two parts, the enhancing body direction difference of composite foundation, and composite foundation proterties difference can divide vertical enhancing bluk recombination ground and level to strengthening two kinds on bluk recombination ground.At present, Chang Yong vertical enhancing bluk recombination Measures for Making Ground and Foundation method is: at the ground place, vertically get out a deep hole in the stratum, pour into cement concrete or quicklime, sandstone etc. then in the hole.So construction, difficulty is bigger, and the construction period is long, and the cost height can produce pollution to environment, and the especially construction of Urban Bridge will be implemented the migration of a large amount of pipelines, and not only engineering quantity is big, and seriously influences traffic for a long time.
The utility model content
This purpose of utility model is, overcomes pile foundation commonly used and the vertical shortcoming that the bluk recombination method for processing foundation exists that strengthens commonly used, provides a kind of enhancing effective, simple and efficient to handle, can significantly reduce construction cost the NEW TYPE OF COMPOSITE stake () basis and using method.
Utility model originally is achieved in that
The NEW TYPE OF COMPOSITE stake () basis mainly covers 8 by power transmission pipe 1, Grouting Pipe 3, the sharp body 6 of awl, cement concrete delivery pump 2 and envelope slurry and form.Pegging graft and boring sharp body in the lower end of power transmission pipe 1; 6 Grouting Pipe 3 are positioned at power transmission pipe 1; Be provided with sealing ring 4 between wall and power transmission pipe 1 inwall outside Grouting Pipe 3 lower ends; Cement concrete delivery pump 2 is positioned at the interface of Grouting Pipe 3 upper end cement concrete chargings, and the envelope slurry covers 8 and is sleeved on power transmission pipe 1 upper end.
Said power transmission pipe 1 is electric welding adapter or seamless steel pipe, cast-steel pipe, FRP pipe, plastic pipe etc., and diameter is Φ 100～300mm, and wall thickness is 3.5～12.0mm.The a plurality of notes of distributing on its pipe wall are pressed hole 7, are blossom type and arrange, and annotating and pressing hole 7 is ellipse or rectangle, circle.Annotate to press 7 places, hole that capping is installed, when managing instantly, this capping can prevent to manage outer mudstone etc. and enter in the pipe, and when outpouring cement concrete in by pipe outside managing, this capping is washed open.Power transmission pipe 1 bottom is provided with division board 5, and its effect is similar to capping.
The sharp body 6 of said awl wherein, the bottom cone tip portion, is combined by the lobe shape sheet of 2-6 symmetry.The upper end of lobe shape sheet is connected on the sharp body 6 of awl; The upper end of boring sharp body 6 is annular plug 9, and this annular plug 9 is to insert with the mouth of pipe place, lower end of power transmission pipe 1 and is connected; That bores sharp body 6 exposes diameter than the big 3～30mm of power transmission pipe external diameter.
Said envelope slurry covers 8, is made up of interior cover 10 and overcoat 11, and interior cover is short vertical tube, and its lower end is fixed with annular ring, and interior cover 10 is sleeved on power transmission pipe 1 upper end; Overcoat 11 is an annular disk, overlaps on 10 in riding over.
Said cement concrete delivery pump 2, its pressure are 3～16MPa.
Utility model operating procedure and using method originally is:
1,, determines material, length, diameter, the wall thickness of power transmission pipe 1 according to the needs and the on-the-spot soil property situation of construction work.
2, leave a plurality of notes on the wall of power transmission pipe 1 and press hole 8, the place is equipped with capping in the position, hole.Division board 5 is equipped with in the bottom of power transmission pipe 1; The lower end of power transmission pipe 1 is inserted with the sharp body 6 of awl and is connected, and promptly bores the mouth of pipe place, lower end of the annular plug 9 insertion power transmission pipes 1 of sharp body 6 upper ends.
3, with the static pressure machine power transmission pipe 1 vertically is pressed into the ground depths on stratum.Because the lower end of power transmission pipe 1 is pointed for awl, it exposes diameter than the big 3～30mm of power transmission pipe external diameter, so power transmission pipe 1 can more easily enter the ground depths; Because division board is arranged at power transmission pipe 1 bottom, to annotate and press 8 places, hole that capping is arranged, when making power transmission pipe 1 insert the stratum, water on every side, mudstone etc. advance less than in the power transmission pipe 1.
4, the envelope slurry is installed and cover 8, it is made up of interior cover 11, overcoat 10, and 8 the effect of covering of this envelope slurry is to prevent that the cement concrete that injects the stratum from emerging from ground, locates the stiffening effect of ground with the assurance face of land.
5, the bottom that the lower end is had the Grouting Pipe 3 insertion power transmission pipes 1 of sealing ring 4.
6, cement concrete delivery pump 2 injects cement concrete with 3～16MPa in Grouting Pipe 3.This cement concrete is can be from close cement concrete, and the slump of cement concrete is 8～30cm.
Under pressure the division board of power transmission pipe 1 bottom is broken through and the lobe shape sheet that will bore sharp body 6 is washed open from close cement concrete thereupon, under the effect of pressure cement concrete with power transmission pipe 1 lower end and around compacted, the compacting of the soil body.
7, the geologic information that provides according to " surveying to the xxx engineering report ", the height of determining to mention Grouting Pipe 3 makes between the sealing ring 4 of Grouting Pipe 3 and power transmission pipe 1 bottom and forms seal cavity.
8, continue to inject cement concrete, the cement concrete of high pressure conditions presses the capping in hole 7 to wash open the notes on the power transmission pipe 1 around the sealing space, cement concrete go out annotate press hole 7 and should the power transmission pipe 1 in interval around compacted, the compacting of soil layer.
9. mention Grouting Pipe 3 once more to suitable height, continue above-mentioned 6 operation ... so repeat, rise to the top of power transmission pipe 1 until Grouting Pipe 3.
So far, just having formed one is composite foundation stabilization district-----single the pile foundation in a big way at center with power transmission pipe 1.
10. the ground location of mobile power transmission pipe 1 repeats above-mentioned 3～8 step, and a plurality of single pile foundation like this are laid and formed the wider composite foundation stabilization district of multi-column pier foundations-----formed.
Behind the concrete coagulation, in being arranged, the soil property of density forms irregular pile body, closely knit being combined into one between itself and the soil matrix; And the irregular pile body that forms has increased substantially and the friction of soil matrix and the bearing capacity of pile body.Because the density of soil matrix itself is different with bearing capacity, rely on uniform pressure, compacting compacted again, must form the irregular of pile body, and the bearing capacity of local soil matrix has been realized relative equilibrium soil matrix.
The foundation consolidating technology of utility model basis, reinforce the groundwork bearing capacity significantly improve, easy and simple to handle, work efficiency is high, the construction period is short, greatly reduces the cost of building engineering construction.
Description of drawings
Fig. 1. the overall structure schematic diagram of utility model present embodiment;
Fig. 2. power transmission pipe lower end and the connection diagram of tieing up sharp body;
Fig. 3. the structural representation of envelope slurry lid;
Fig. 4. the reinforcement ground state diagram after the construction.
The specific embodiment
Below in conjunction with embodiment of accompanying drawing narration, utility model originally is described further.
Embodiment 1: to the intensive treatment of one 20 floor premises base
Fig. 1 show composite pile () overall structure of the embodiment on basis
Mainly covering 8 by power transmission pipe 1, Grouting Pipe 3, the sharp body 6 of awl, cement concrete delivery pump 2 and envelope slurry forms.According to the needs and the soil property situation of construction work, determine that power transmission pipe 1 is welded tube, length 6m rice, diameter are Φ 200mm, wall thickness is 8mm.A plurality of notes that distributing on its pipe wall are pressed hole 7, and annotating and pressing hole 7 is rectangle minor face 30mm, long limit 40mm, and the distance between the Kong Yukong is 25cm.The plastics capping of 0.3mm is set on power transmission pipe 1 outer wall.Power transmission pipe 1 bottom is provided with plastic barrier plate 5, thickness of slab 0.3mm.The mouth of pipe place, lower end of power transmission pipe 1 inserts the sharp body 6 of awl, this bore sharp body in, lower part series combines by the lobe shape sheet of three symmetries, the upper end of lobe shape sheet is connected on the sharp body 6 of awl; The top of boring sharp body 6 is annular plug 9, bores sharp body 6 and is connected with the lower end insertion of power transmission pipe 1 by annular plug 9.Grouting Pipe 3 is positioned at power transmission pipe 1; Be provided with sealing ring 4 between Grouting Pipe 3 lower ends and the power transmission pipe 1.Envelope slurry covers 8 upper ends that are sleeved on power transmission pipe 1.
Cement concrete delivery pump 2 is positioned at the interface of Grouting Pipe 3 upper end cement concrete chargings.
The operating procedure and the using method of present embodiment are:
1,, determines material, length, diameter, the wall thickness of power transmission pipe 1 according to the needs and the on-the-spot soil property situation of construction work.
2, leave a plurality of notes on the wall of power transmission pipe 1 and press hole 8, the place is equipped with capping in the position, hole.Division board 5 is equipped with in the bottom of power transmission pipe 1; The lower end of the power transmission pipe 1 of division board 5 belows is inserted with the sharp body 6 of awl and is connected, and promptly bores the mouth of pipe place, lower end of the annular plug 9 insertion power transmission pipes 1 of sharp body 6 upper ends.
3, with the static pressure machine power transmission pipe 1 vertically is pressed into the ground depths on stratum.
4, will seal slurry and cover 8, cover installs to power transmission pipe 1 upper end.
5, the bottom that the lower end is had the Grouting Pipe 3 insertion power transmission pipes 1 of sealing ring 4.
6, by cement concrete delivery pump 2, in Grouting Pipe 3, inject cement concrete with 3～16MPa.This cement concrete is from close cement concrete, and the slump of cement concrete is 8～30cm.
7, the geologic information that provides according to " surveying to the xxx engineering report ", the height of determining to mention Grouting Pipe 3 makes between the sealing ring 4 of Grouting Pipe 3 and power transmission pipe 1 bottom and forms seal cavity.
8, continue to inject cement concrete, the cement concrete of high pressure conditions.
9. mention Grouting Pipe 3 once more to suitable height, continue above-mentioned 6 operation ... so repeat, rise to the top of power transmission pipe 1 until Grouting Pipe 3.
So far, just having formed one is composite foundation stabilization district-----single the pile foundation in a big way at center with power transmission pipe 1.
10. the ground location of mobile power transmission pipe 1 repeats above-mentioned 3～8 step, and a plurality of single pile foundation like this are laid and formed the wider composite foundation stabilization district of multi-column pier foundations-----formed.
Fig. 2 shows the structure that the lower end of power transmission pipe 1 is connected with the sharp body 6 of awl.The middle and lower part of boring sharp body 6 is combined by 3 flap sheets of symmetry, and angle is 60 ° between the taper surface that the upper end of flap sheet is fixed into; The upper end of boring sharp body 6 is annular plug 9, links into an integrated entity by this plug and the power transmission pipe 1 lower end mouth of pipe.The power transmission pipe 1 that is positioned at this annular plug top is provided with plastic barrier plate 5.
Fig. 3 shows that the envelope slurry covers 8 structure.This envelope slurry cover 8 to be made up of interior cover 10 and overcoat 11, and interior cover 10 is to lack vertical tube, and an annular ring is being welded in its lower end.During use, interior cover 10 is sleeved on power transmission pipe 1 upper end; Overcoat is an annular disk, is formed by cast steel or iron casting, and its weight is 1～5t, during use it is sleeved on the interior cover 10.
Fig. 4 shows the reinforcement ground state after the present embodiment construction.Power transmission pipe 1 is buried in the ground stiffened region, is bringing into play the effect of strengthening ground; Enhancing body 12 has improved the friction with soil matrix, has increased the bearing capacity of ground.
Embodiment 2: certain major urban arterial highway road junction is the cross road, the arterial highway is two-way six-lane, turnpike road clear span 28m, the greening bandwidth is 3m, auxilliary road is wide to be 7m, according to existing crossing situation, designs one of vertical or horizontal overpass bridge, the overpass bridge clear height requires the two-way Four-Lane Road of 4.5m, load highway-I level.
According to above-mentioned situation, so the design main span is 30m, Upright post base drops on the forward position of greenbelt, and spanning directly constitutes 10+5 * 18+3 * 30+5 * 18+10m.The general arrangement of this bridge has 2 abutments, 12 bridge piers." the xxx overpass bridge works limit pipeline exploration report " that pipeline prospecting department provides, showing in that cross road underground is crisscross has all kinds of pipelines.
" the xxx overpass bridge report of engineering geological exploration " that geological mapping department provides confirms the stratum on ground to 25 meter to be respectively loess, silty clay, medium sand, clay from top to down.Wherein loess formation thickness is 7.5 meters; 6.7 meters of silty clay bed thickness; Thick 5.5 meters of medium sand soil layer; 5.3 meters of thickness of clay soil, groundwater table is about below ground 8m.
Calculate the required intensity (stress and sedimentation) in basis according to " xx overpass bridge report of engineering geological exploration " and upper load, as calculated: power transmission pipe 1 is selected Φ 160mm cast-steel pipe, and wall thickness is got 5mm.The lower end of the power transmission pipe 14 lobe formulas of pegging graft are bored sharp body 6; A plurality of notes that distributing on the pipe wall of power transmission pipe 1 are pressed hole 7, are the plum blossom shape and arrange, and it is oval annotating and pressing hole 7, minor axis 40mm, and major axis 80mm, the distance between the Kong Yukong is 30cm.The steel capping of 0.1mm is set on power transmission pipe 1 outer wall.Power transmission pipe 1 bottom is provided with plastic barrier plate 5, thickness of slab 0.4mm.Grouting Pipe 3 adopts the seamless steel pipe of Φ 100mm, and wall thickness is 4mm; Sealing ring 4 adopts Φ 134mm, highly is the high molecular polymer rubber of 100mm, Grouting Pipe 3 and 4 fixed linking to each other of sealing ring; Cement concrete delivery pump 2 has 3 covers, and pressure is 10Mpa, injects from close cement concrete in Grouting Pipe 3, and the slump of cement concrete is 26～28cm.
Wherein abutment needs 8 long 9 meters power transmission pipes 1, and bridge pier needs 10 long 12 meters and 15 meters power transmission pipes 1, and wherein 12 meters long power transmission pipes 1 are totally 80, totally 40 of 15 meters long power transmission pipes 1, totally 16 of 9 meters power transmission pipes 1.When cement concrete delivery pump 2 pressure reach .10Mpa, stop slip casting.Each lifting Grouting Pipe in the power transmission pipe 1 is 3 meters.
Embodiment:
1, unwrapping wire measurement and positioning is determined power transmission pipe 1 position.
2, the static pressure machine is in place, and power transmission pipe 1 device vertically is pressed into the depths, stratum; Envelope slurry lid is installed.
3, Grouting Pipe 3 and sealing ring 4 are installed.
4, cement concrete delivery pump 2 is in place, when when cement concrete delivery pump 2 pressure reach 10Mpa, stops slip casting.
5, lifting has sealing ring 4 Grouting Pipe 3.
6, once more by 2 slip castings of cement concrete delivery pump ... rise to the top of power transmission pipe 1 until Grouting Pipe 3.
7, mobile cement concrete delivery pump 2 repeats 2～6 steps to another root power transmission pipe 1.
So just finish bridge pier composite pile () basis construction.
The beneficial effect of present embodiment: the construction of xxx grade separation engineering NEW TYPE OF COMPOSITE pile foundation, underground utilities migration work that conventional pile foundation construction needs and the pollution of having avoided conventional pile foundation construction have not only been saved to environment, more solved the not high and big drawback of settling amount of conventional Bearing Capacity of Composite Foundation, it is quick, convenient, simple to operate to have construction, has saved construction costs greatly.
Claims (7)
1. NEW TYPE OF COMPOSITE pile foundation is characterized in that: by power transmission pipe (1), Grouting Pipe (3), bore sharp body (6), cement concrete delivery pump (2) and envelope slurry lid (8) and form; A plurality of notes that distributing on the pipe wall of power transmission pipe (1) are pressed hole (7), annotate and press hole (7) to go up the installation capping; Power transmission pipe (1) bottom is provided with division board (5), is pegging graft and boring sharp body (6) in the lower end of power transmission pipe (1); Grouting Pipe (3) is positioned at power transmission pipe (1); Be provided with sealing ring (4) between wall and power transmission pipe (1) inwall outside Grouting Pipe (3) lower end; Cement concrete delivery pump (2) is positioned at the cement concrete charging interface of Grouting Pipe (3) upper end; Envelope slurry lid (8) is sleeved on power transmission pipe (1) upper end.
2. according to the described composite pile foundation of claim 1, it is characterized in that: said power transmission pipe (1) is electric welded steel pipe or seamless steel pipe, cast-steel pipe, FRP pipe, plastic pipe.
3. according to the described composite pile foundation of claim 1, it is characterized in that: said notes press holes (7) to be ellipse or rectangle, circle, and are blossom type and arrange.
4. according to the described composite pile foundation of claim 1, it is characterized in that: in the sharp body of said awl (6), the bottom is cone tip portion, combined by the lobe shape sheet of 2～6 symmetries, the upper end of lobe shape sheet is connected on the sharp body of awl (6); The top of boring sharp body (6) is annular plug (9), bores sharp body (6) and is connected for inserting with the lower end of power transmission pipe (1) by annular plug (9).
5. according to the described composite pile foundation of claim 4, it is characterized in that: reveal diameter than the big 3～30mm of power transmission pipe (1) external diameter outside the sharp body of said awl (6) upper end.
6. according to the described composite pile foundation of claim 1, it is characterized in that: said cement concrete delivery pump (2), its pressure are 3～16MPa.
7. according to claim 1 composite pile foundation, it is characterized in that: envelope slurry lid (8) is made up of interior cover (10), overcoat (11), and interior cover (10) is fixed with the short vertical tube of annular ring for the lower end, and interior cover (10) is sleeved on the power transmission pipe (1); Overcoat (11) is an annular disk, rides on the interior cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020698147XU CN202090356U (en) | 2010-12-31 | 2010-12-31 | Novel composite pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020698147XU CN202090356U (en) | 2010-12-31 | 2010-12-31 | Novel composite pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202090356U true CN202090356U (en) | 2011-12-28 |
Family
ID=45365434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020698147XU Expired - Fee Related CN202090356U (en) | 2010-12-31 | 2010-12-31 | Novel composite pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202090356U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041814A (en) * | 2010-12-31 | 2011-05-04 | 郭红军 | Novel composite pile (ground) foundation and application method thereof |
| CN102677660A (en) * | 2012-04-28 | 2012-09-19 | 邢台路桥建设总公司 | Quick pile-forming method and method for quickly building urban flyover by quick pile-forming method |
| CN105971001A (en) * | 2016-06-30 | 2016-09-28 | 三重型能源装备有限公司 | Bottom supporting device of offshore platform and offshore wind power generation device |
-
2010
- 2010-12-31 CN CN201020698147XU patent/CN202090356U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041814A (en) * | 2010-12-31 | 2011-05-04 | 郭红军 | Novel composite pile (ground) foundation and application method thereof |
| CN102677660A (en) * | 2012-04-28 | 2012-09-19 | 邢台路桥建设总公司 | Quick pile-forming method and method for quickly building urban flyover by quick pile-forming method |
| CN102677660B (en) * | 2012-04-28 | 2014-06-04 | 邢台路桥建设总公司 | Quick pile-forming method and method for quickly building urban flyover by quick pile-forming method |
| CN105971001A (en) * | 2016-06-30 | 2016-09-28 | 三重型能源装备有限公司 | Bottom supporting device of offshore platform and offshore wind power generation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106759473B (en) | The constructing structure and its construction method of underground pipe gallery and road | |
| CN103276639B (en) | Roadbed structure for deep soft soil region | |
| CN102041814A (en) | Novel composite pile (ground) foundation and application method thereof | |
| CN105239586B (en) | Method for supporting foundation pit by adopting support structure | |
| CN100455731C (en) | Guide pit type manual pot holing pile reinforing and underpinning method for building foundation and composite supporting pile | |
| CN201148621Y (en) | Miniature anti-slide pile composite structure | |
| CN104389320B (en) | Construction method of pile foundation anchor rope prestress high retaining wall | |
| CN105672348A (en) | Construction method for cropping bridge pile foundation at sandy gravel stratum of abyssal region | |
| CN105274922B (en) | A kind of antiskid key steel-pipe pile composite construction and method for repairing landslide roadbed | |
| CN203960700U (en) | The closed road structure of stake holder U-lag | |
| CN201358456Y (en) | Plastic sleeve concrete pile | |
| CN107761708A (en) | The processing method that big thickness Collapsible Loess District Subway station groundwork is reinforced | |
| CN101525880A (en) | Plastic sleeve concrete pile and method thereof for reinforcing soft soil foundation | |
| CN111594232A (en) | Large-scale filling type karst cave geological tunnel foundation reinforcing structure and construction method thereof | |
| CN102877865A (en) | Construction method for treating underground gob or cavity | |
| CN107503362A (en) | A kind of compound antiskid piling wall retaining structure and construction method suitable for reservoir stability | |
| CN102400462A (en) | Secondary grouting small pile construction process in foundation anti-seismic reinforcement treatment | |
| CN203213101U (en) | Embedding grouting combined pile | |
| CN207211165U (en) | A kind of compound antiskid piling wall retaining structure suitable for reservoir stability | |
| CN202324017U (en) | Grouting type micro steel pipe pile | |
| CN202090356U (en) | Novel composite pile foundation | |
| CN206844132U (en) | Superelevation light supporting structure | |
| CN104895078B (en) | A kind of to hold the construction method of the prefabricated pile of holding capacity | |
| CN204238239U (en) | Pile foundation prestressd anchor cable height wall-retaining structure | |
| CN203174626U (en) | Geogrid reinforced wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |