CN202090357U - Pile cap for cluster type pile foundation and immersed tunnel pile foundation - Google Patents
Pile cap for cluster type pile foundation and immersed tunnel pile foundation Download PDFInfo
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- CN202090357U CN202090357U CN2011201239064U CN201120123906U CN202090357U CN 202090357 U CN202090357 U CN 202090357U CN 2011201239064 U CN2011201239064 U CN 2011201239064U CN 201120123906 U CN201120123906 U CN 201120123906U CN 202090357 U CN202090357 U CN 202090357U
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Abstract
The utility model relates to a pile cap used for a cluster type pile foundation and further relates to an immersed tunnel pile foundation. The pile cap used for the cluster type pile foundation comprises a circumferential side plate, a crown plate, a crown plate through hole and a lifting part, wherein the inside of the circumferential side plate is capable of accommodating a plurality of foundation piles; the crown plate covers the top opening of the circumferential side plate and is integrated with the circumferential side plate; the crown plate through hole is formed on the crown plate; the lifting part is arranged on the crown plate; and the height of the pile cap used for the cluster type pile foundation is smaller than the design elevation of the immersed tunnel pile foundation. The immersed tunnel pile foundation comprises a plurality of cluster type foundation piles, wherein each of the cluster type foundation piles comprises a plurality of foundation piles, the pile caps used for the cluster type pile foundation, debris and cement concrete. The utility model solves the problems that the top elevations of piles are inconsistent in the top elevation regulation of individual piles, the channel occupying time is long, and manpower, physical resources and finance are wasted.
Description
Technical field
The utility model relates to a kind of building unit, and particularly a kind of pile cover relates in particular to a kind of pile cover that is used for the immersed tube tunnel pile foundation, is specifically related to a kind of pile cover that is used for the beaming type pile foundation; The utility model also relates to a kind of building foundation, particularly a kind of immersed tube tunnel pile foundation.
Background technology
Along with the development in city, when tunnel construction, on the one hand, require to increase the track quantity of institute's built tunnel; On the other hand, place, line position can be built in the tunnel, is subjected to track, tunnel absolute altitude to be connected the restriction of sloping absolute altitude with road, and the advantage that adopts immersed tunnelling method to build the tunnel highlights.The Foundation Design of immersed tunnelling method tunnel bottom is extremely important, and whether the based process Scheme Selection reasonable, can directly influence the investment, waterproof, distortion, later stage differential settlement or the like in immersed tunnelling method tunnel.In the prior art, the based process method that the immersed tunnelling method tunnel bottom is commonly used is scraped shop method, sand-blast, sand replacement method, pouch method, slip casting method or the like usually.But,, when the very poor rivers of geological conditions, seabed excavation groove, have problems such as water-bed soil stabilization, alluvial mud scum or bed-sit back-silt at the sand content height.According to the related data statistics, it is comparatively desirable to adopt pile foundation to handle.Pile foundation (containing broken stone pile) accounts for about 13% of immersed tunnelling method tunnel total amount.
Know according to existing data and engineering practice,, adopt pile foundation can effectively control the total settlement and the differential settlement in tunnel later stage in tunnel at the immersed tube tunnel that soft clay area is built.But immersed tube tunnel adopts the pile foundation form also to exist many technical problems to need to solve at present as Foundation Design.Existing immersed tube tunnel pile foundation adopts the high technology of adjusting of single stake stake top mark.The high technical requirements height of adjusting of single stake stake top mark each pile stake top mark height often occurs and differs, and the pressure that born separately of each pile is inhomogeneous like this.The high adjustment of single stake stake top mark, the processing time is long, and it is also long therefore to take the navigation channel time.When the stake top mark height of big bottom, section immersed tube tunnel central area is adjusted, need from drawing a large amount of Grouting Pipe under water, every Grouting Pipe needed to be finished by the diver with being connected of adjustable pile top, very the labor intensive physical resources and financial resources.
The utility model content
The first aspect of the purpose of this utility model is to propose a kind of pile cover that is used for the beaming type pile foundation, can form the beaming type pile foundation by the described pile cover that is used for the beaming type pile foundation, a plurality of beaming type pile foundations constitute the immersed tube tunnel pile foundation, in the work progress of immersed tube tunnel pile foundation, can adjust the absolute altitude of described immersed tube tunnel pile foundation by adjusting the described end face absolute altitude that is used for the pile cover of beaming type pile foundation easily, make the absolute altitude of described immersed tube tunnel pile foundation reach design elevation easily, solve single stake stake top mark to a high-profile whole deposit each pile stake top mark height differ, it is long to take the navigation channel time, the problem of labor intensive physical resources and financial resources.
The utility model solves the problems of the technologies described above by the following technical programs, reaches the purpose of the utility model first aspect.
A kind of pile cover that is used for the beaming type pile foundation comprises:
Cycle side plate, the inside of described cycle side plate can hold the stake of many foundation;
Top board, described top board cover the open top of described cycle side plate and into a single integrated structure with described cycle side plate;
The top board through hole, described top board through hole is arranged on the described top board, and described top board through hole is communicated with the inside and outside of described cycle side plate;
Lifting portion, described lifting portion is arranged on the described top board;
The height value of the described pile cover that is used for the beaming type pile foundation is less than immersed tube tunnel Design of pile foundation absolute altitude value.
The described height value that is used for the pile cover of beaming type pile foundation is the bottom surface of the described pile cover that is used for the beaming type pile foundation and the distance value between the end face; Described immersed tube tunnel Design of pile foundation absolute altitude value is the end face of immersed tube tunnel pile foundation described in the design and the distance value between the datum.In the utility model, described datum is the water-bed ground of building described immersed tube tunnel pile foundation.
In the utility model, the described pile cover that is used for the beaming type pile foundation can adapt to the foundation pile of different-diameter, because the inside of described cycle side plate can hold the stake of many foundation, and the height value of the described pile cover that is used for the beaming type pile foundation is less than described immersed tube tunnel Design of pile foundation absolute altitude value, so can build the beaming type pile foundation, and can adjust the absolute altitude of described immersed tube tunnel pile foundation (the described end face absolute altitude that is used for the pile cover of beaming type pile foundation is meant the end face of the described pile cover that is used for the beaming type pile foundation and the distance between the described datum, and the absolute altitude of described immersed tube tunnel pile foundation is meant the end face of described immersed tube tunnel pile foundation and the distance between the described datum) by adjusting the described end face absolute altitude that is used for the pile cover of beaming type pile foundation.Because be provided with described top board through hole, so can be easily to the described pile cover placing cement concrete in injection that is used for the beaming type pile foundation.The setting of described lifting portion, the described pile cover that is used for the beaming type pile foundation of being convenient to sling also is installed in the precalculated position with the described pile cover that is used for the beaming type pile foundation, also be convenient to promote the described pile cover that is used for the beaming type pile foundation, to adjust the absolute altitude of immersed tube tunnel pile foundation by adjusting the described end face absolute altitude that is used for the pile cover of beaming type pile foundation.Because be provided with lifting portion, so can on the water surface, adjust the operation of the end face absolute altitude of the described pile cover that is used for the beaming type pile foundation.Use the pile cover that is used for the beaming type pile foundation of the present utility model, need not to adjust single stake stake top mark, the problem that does not exist each pile stake top mark height to differ; Adjustment is used for the end face absolute altitude of the pile cover of beaming type pile foundation, than adjusting the high shared navigation channel time of each pile stake top mark shorter, and do not need under the diver water operation and draw Grouting Pipe, financial resources more use manpower and material resources sparingly.
The pile cover that is used for the beaming type pile foundation described in the utility model preferably, also comprises truss, and described truss is arranged on described cycle side plate inside, and described truss connects described cycle side plate.Described truss can play booster action.Further, described truss is a steel truss.Described steel truss can be used as the concrete steel of described immersed tube tunnel pile foundation.
The pile cover that is used for the beaming type pile foundation described in the utility model, preferably, the bottom of described cycle side plate is the sword pin.Described sword pin has guide effect in place, and during this export-oriented described pile cover placing cement concrete in injection that is used for the beaming type pile foundation, described sword pin makes that described cement concrete is easier to be wrapping to the described bottom periphery that is used for the pile cover of beaming type pile foundation.
The pile cover that is used for the beaming type pile foundation described in the utility model, preferably, described top board through hole is arranged on the center of described top board, the cross section of described top board is a variable cross-section, the thickness of section of described top board diminishes to the center of described top board from the periphery of described top board, and the soffit of described top board extremely is the shape that is inclined upwardly in the center of described top board from the periphery of described top board.The shape of described top board helps strengthening the intensity of described top board.When the described pile cover that is used for the beaming type pile foundation injects cement concrete, the shape of described top board helps some rubbish and makes progress away along the described soffit that is used for the pile cover of beaming type pile foundation, until walking out the described pile cover that is used for the beaming type pile foundation from described top board through hole.
The pile cover that is used for the beaming type pile foundation described in the utility model, preferably, described cycle side plate is cylindrical plate or polygon cylindricality plate, described top board is circular slab or the polygonal panel corresponding with described cycle side plate, described polygon cylindricality such as triangle cylindricality, rectangular cylindricality, square cylindricality, water chestnut cylindricality, positive five side column shapes, positive hexagon cylindricality, positive eight side column shapes or the like.
The pile cover that is used for the beaming type pile foundation described in the utility model, preferably, described cycle side plate is a cylindrical steel plate, described top board is circular steel plate.
The pile cover that is used for the beaming type pile foundation described in the utility model, preferably, described cycle side plate is the reinforced cement concrete cylindrical plate; Described top board is the reinforced cement concrete circular slab.
The second aspect of the purpose of this utility model is to propose a kind of immersed tube tunnel pile foundation, in building work progress, the absolute altitude of described immersed tube tunnel pile foundation can be adjusted easily, the absolute altitude of described immersed tube tunnel pile foundation can reach design elevation easily, solve single stake stake top mark to a high-profile whole deposit each pile stake top mark height differ, take the problem of long, labor intensive physical resources and financial resources of navigation channel time.
The utility model solves the problems of the technologies described above by the following technical programs, reaches the purpose of the utility model second aspect.
A kind of immersed tube tunnel pile foundation comprises a plurality of beaming type pile foundations, and each beaming type pile foundation comprises:
The stake of many foundation;
Pile cover, described pile cover are the foregoing pile covers that is used for the beaming type pile foundation, and the described pile cover that is used for the beaming type pile foundation covers described many foundation stake;
Debris, described debris is piled up around the described pile cover that is used for the beaming type pile foundation;
Cement concrete, described cement concrete are filled in the described pile cover that is used for the beaming type pile foundation.
In immersed tube tunnel pile foundation of the present utility model, the described pile cover that is used for the beaming type pile foundation has covered described many foundation stake, so in the building course of immersed tube tunnel pile foundation of the present utility model, promoting the described end face absolute altitude that is used for the pile cover of beaming type pile foundation promptly is the absolute altitude that promotes described immersed tube tunnel pile foundation.Because described debris is piled up around the described pile cover that is used for the beaming type pile foundation, so in the building course of immersed tube tunnel pile foundation of the present utility model, when promoting the described pile cover that is used for the beaming type pile foundation, the rubble of described debris can tumble automatically under the described pile cover that is used for the beaming type pile foundation, for the described pile cover that is used for the beaming type pile foundation rebasing.Described cement concrete is filled in the described pile cover that is used for the beaming type pile foundation, so just described many foundation stake and the described pile cover that is used for the beaming type pile foundation is connected as a single entity.Because be provided with lifting portion, so can on the water surface, adjust the operation of the end face absolute altitude of the described pile cover that is used for the beaming type pile foundation.Use immersed tube tunnel pile foundation of the present utility model, need not to adjust single stake stake top mark, the problem that does not exist each pile stake top mark height to differ; Adjust the described end face absolute altitude that is used for the pile cover of beaming type pile foundation, than adjusting the high shared navigation channel time of each pile stake top mark shorter, and do not need under the diver water operation and draw Grouting Pipe, financial resources more use manpower and material resources sparingly.
Immersed tube tunnel pile foundation described in the utility model, preferably, described foundation pile is a pile tube.
Immersed tube tunnel pile foundation described in the utility model, preferably, described foundation pile is a broken stone pile.
Be described further below with reference to the technique effect of accompanying drawing, so that those skilled in the art understands the purpose of this utility model, feature and effect fully design of the present utility model, concrete structure and generation.
Description of drawings
Fig. 1 is the described structural representation that is used for the pile cover of beaming type pile foundation of the specific embodiment;
Fig. 2 is the structural representation of the described immersed tube tunnel pile foundation of the specific embodiment;
Fig. 3 is a structural representation in the work progress of immersed tube tunnel pile foundation.
The specific embodiment
As shown in Figure 1, a kind of pile cover 1 that is used for the beaming type pile foundation comprises cycle side plate 11, top board 12, top board through hole 13, lifting portion 14 and truss 15.
The inside of cycle side plate 11 can hold the stake of many foundation.The bottom of cycle side plate 11 is a sword pin 111.Cycle side plate 11 is reinforced cement concrete cylindrical plate, and top board 12 covers the open top of cycle side plate 11 and into a single integrated structure with cycle side plate 11.Top board 12 is reinforced cement concrete circular slabs.Top board through hole 13 is arranged on the top board 12, and top board through hole 13 is communicated with the inside and outside of cycle side plate 11.Top board through hole 13 is arranged on the center of top board 12, and the cross section of top board 12 is variable cross-sections, and the thickness of section of top board 12 diminishes to the center of top board 12 from the periphery of top board 12, and the center to top board 12 is the shape that is inclined upwardly to the soffit of top board 12 from the periphery of top board 12.Lifting portion 14 is arranged on the top board 12, and lifting portion 14 can be pre-buried lifting plate or pre-buried hook.In this specific embodiment, lifting portion 14 is pre-buried lifting plates, and the lifting plate is to be provided with the hanging hole steel plate.Truss 15 is arranged on cycle side plate 11 inside, and truss 15 connects cycle side plate 11.The material of truss 15 is steel.
The height value of pile cover 1 that is used for the beaming type pile foundation is less than immersed tube tunnel Design of pile foundation absolute altitude value.
This construction method that is used for the pile cover of beaming type pile foundation comprises the steps:
1) cage of reinforcement of bundle cycle side plate 11, the cage of reinforcement of bundle top board 12;
2) truss 15 is provided with (as welding) on the cage of reinforcement of cycle side plate 11 (certainly, this step also can be implemented after the described below step 5));
3) cage of reinforcement of top board 12 and the cage of reinforcement of cycle side plate 11 are bound together;
4) set the template of cycle side plate 11 and top board 12;
5) joints cement concrete, moulding.
Hold concurrently referring to Fig. 2.A kind of immersed tube tunnel pile foundation comprises a plurality of beaming type pile foundations, and each beaming type pile foundation comprises: pile cover, many foundation stake 2, debris 3, cement concrete 4.
Pile cover is as the described pile cover 1 that is used for the beaming type pile foundation of this specific embodiment.The number of foundation pile 2 can be adjusted according to loading condition, and generally each beaming type pile foundation comprises 6～8 foundation stakes 2, and foundation pile 2 is pile tube or broken stone pile.Hold concurrently referring to Fig. 3, the beaming type pile foundation that Fig. 3 shows comprises 6 root canal piles 21,22,23,24,25,26,6 root canal piles 21,22,23,24,25,26 distribute around guide pile 6,6 root canal piles 21,22,23,24,25,26 equate that with the distance of guide pile 6 distance between the two adjacent root canal piles (as pile tube 21 and pile tube 22) equates; The truss of the beaming type pile foundation that Fig. 3 shows comprises 151,152, transverse truss 153 of two longitudiual truss.Longitudiual truss 151,152 is connected cycle side plate 11 with transverse truss 153.Truss is as the concrete steel of beaming type pile foundation.The pile cover 1 that is used for the beaming type pile foundation covers foundation pile 2.In this specific embodiment, each pile cover 1 that is used for the beaming type pile foundation covers six roots of sensation foundation pile 2.Debris 3 is piled up around the pile cover 1 that is used for the beaming type pile foundation.Cement concrete 4 is filled in the pile cover 1 that is used for the beaming type pile foundation.
The job practices of this immersed tube tunnel pile foundation is earlier to excavate corresponding groove in the tunnel location that is designed for the sinking immersed tube tunnel, each beaming type pile foundation of construction then, and the construction of each beaming type pile foundation comprises following operation:
A) make guide pile 6, make the absolute altitude of the end face of guide pile 6 be higher than the absolute altitude of the water surface, promptly guide pile 6 surfaces, and can make things convenient for subsequent handling like this; Guide pile 6 is by GPS location, with the accurate location of the foundation pile that guarantees whole beaming type pile foundation and beaming type pile foundation; The absolute altitude of the end face of guide pile 6 is the end face of guide pile 6 and the distance between the datum;
B) play many foundation stake 2, make the absolute altitude of the end face of every foundation stake 2 all be lower than immersed tube tunnel Design of pile foundation absolute altitude, the absolute altitude of the end face of each foundation stake 2 can be different; The location of many foundation stake 2 if foundation pile 2 is pile tubes, can be located with in advance prefabricated locating rack; Locating rack comprises inserted link, many cantilevers, a plurality of centring ring, one end of each cantilever all is connected with inserted link, the other end of each cantilever all is connected with a centring ring, relative position between relative position between the centring ring and the foundation pile 2 that will locate coincide, and the size of centring ring just in time can be entangled foundation pile 2; During use, inserted link is inserted in the stake hole of guide pile 6, foundation pile 2 is injected centring ring, lay foundation pile 2, promptly realized the accurate location of foundation pile 2; The absolute altitude of the end face of foundation pile 2 be foundation pile 2 end face and datum between distance;
C) get prefabricated as the described pile cover 1 that is used for the beaming type pile foundation of this specific embodiment, top board through hole 13 internal diameters that are used for the pile cover 1 of beaming type pile foundation equal the external diameter of guide pile 6, the pile cover 1 that the lifting portion 14 of the pile cover 1 by being used for the beaming type pile foundation slings and is used for the beaming type pile foundation, the pile cover 1 that will be used for the beaming type pile foundation by top board through hole 13 is enclosed within guide pile 6, the pile cover 1 that is used for the beaming type pile foundation covers foundation pile 2, the bottom surface absolute altitude that is used for the pile cover 1 of beaming type pile foundation this moment hangs down 0～1500mm than the design elevation of foundation pile 2, the end face absolute altitude of pile cover 1 that is used for the beaming type pile foundation is lower than immersed tube tunnel Design of pile foundation absolute altitude, and whole operation is carried out on the water surface;
D) pile up rubble around the pile cover 1 that is used for the beaming type pile foundation and form debris, when specifically implementing, topple over rubble around the pile cover 1 that is used for the beaming type pile foundation and can realize piling up rubble around the pile cover 1 that is used for the beaming type pile foundation;
E) pull out guide pile 6;
F) pile cover 1 of slinging and being used for the beaming type pile foundation in the lifting portion 14 of the pile cover 1 of the water surface by being used for the beaming type pile foundation, promote the pile cover 1 that is used for the beaming type pile foundation at a slow speed, allow rubble multiple spot (more than 3 points) insert automatically under the sword pin 111 of cycle side plate 11 of the pile cover 1 that is used for the beaming type pile foundation, the end face absolute altitude that is used in the pile cover 1 of beaming type pile foundation reaches immersed tube tunnel Design of pile foundation absolute altitude, error can be controlled in ± 50mm, and whole operation is carried out on the water surface;
G) conduit of insertion disturbing concrete in top board through hole 13, in the pile cover 1 that is used for the beaming type pile foundation, inject cement concrete 4, cement concrete 4 can diffuse into cylindric at the columniform pile cover 1 that is used for the beaming type pile foundation automatically, some rubbish are then continued to use in the soffit of the pile cover 1 of beaming type pile foundation and are made progress away, until walk out the pile cover 1 that is used for the beaming type pile foundation from top board through hole 13;
H) wipe the cement concrete 4 that exceeds top board through hole 13 off.
The pile cover 1 that is used for the beaming type pile foundation can be prefabricated in batches in factory, the construction so that each beaming type pile foundation goes into operation simultaneously.
Certainly, the shape of cycle side plate 11 also can be polygon cylindricality, as triangle cylindricality, rectangular cylindricality, square cylindricality, water chestnut cylindricality, positive five side column shapes, positive hexagon cylindricality, positive eight side column shapes or the like.The shape of top board 12 also can for the corresponding polygon of cycle side plate.The material of cycle side plate 11, top board 12 also can be steel.
More than describe preferred embodiment of the present utility model in detail.The ordinary skill that should be appreciated that this area need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (10)
1. a pile cover that is used for the beaming type pile foundation is characterized in that, comprising:
Cycle side plate, the inside of described cycle side plate can hold the stake of many foundation;
Top board, described top board cover the open top of described cycle side plate and into a single integrated structure with described cycle side plate;
The top board through hole, described top board through hole is arranged on the described top board, and described top board through hole is communicated with the inside and outside of described cycle side plate;
Lifting portion, described lifting portion is arranged on the described top board;
The height value of the described pile cover that is used for the beaming type pile foundation is less than immersed tube tunnel Design of pile foundation absolute altitude value.
2. the pile cover that is used for the beaming type pile foundation as claimed in claim 1 is characterized in that, also comprises: truss, described truss are arranged on described cycle side plate inside, and described truss connects described cycle side plate.
3. the pile cover that is used for the beaming type pile foundation as claimed in claim 1 is characterized in that, the bottom of described cycle side plate is the sword pin.
4. the pile cover that is used for the beaming type pile foundation as claimed in claim 1, it is characterized in that: described top board through hole is arranged on the center of described top board, the cross section of described top board is a variable cross-section, the thickness of section of described top board diminishes to the center of described top board from the periphery of described top board, and the soffit of described top board extremely is the shape that is inclined upwardly in the center of described top board from the periphery of described top board.
5. the pile cover that is used for the beaming type pile foundation as claimed in claim 1 is characterized in that, described cycle side plate is cylindrical plate or polygon cylindricality plate, and described top board is circular slab or the polygonal panel corresponding with described cycle side plate.
6. the pile cover that is used for the beaming type pile foundation as claimed in claim 1 is characterized in that described cycle side plate is a cylindrical steel plate, and described top board is circular steel plate.
7. the pile cover that is used for the beaming type pile foundation as claimed in claim 1 is characterized in that, described cycle side plate is the reinforced cement concrete cylindrical plate; Described top board is the reinforced cement concrete circular slab.
8. an immersed tube tunnel pile foundation is characterized in that, comprises a plurality of beaming type pile foundations, and each beaming type pile foundation comprises:
The stake of many foundation;
Pile cover, described pile cover are that the described pile cover that is used for the beaming type pile foundation covers described many foundation stake as each described pile cover that is used for the beaming type pile foundation of claim 1～7;
Debris, described debris is piled up around the described pile cover that is used for the beaming type pile foundation;
Cement concrete, described cement concrete are filled in the described pile cover that is used for the beaming type pile foundation.
9. immersed tube tunnel pile foundation as claimed in claim 8 is characterized in that: described foundation pile is a pile tube.
10. immersed tube tunnel pile foundation as claimed in claim 8 is characterized in that: described foundation pile is a broken stone pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201239064U CN202090357U (en) | 2011-04-25 | 2011-04-25 | Pile cap for cluster type pile foundation and immersed tunnel pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201239064U CN202090357U (en) | 2011-04-25 | 2011-04-25 | Pile cap for cluster type pile foundation and immersed tunnel pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202090357U true CN202090357U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201239064U Expired - Fee Related CN202090357U (en) | 2011-04-25 | 2011-04-25 | Pile cap for cluster type pile foundation and immersed tunnel pile foundation |
Country Status (1)
| Country | Link |
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| CN (1) | CN202090357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261080A (en) * | 2011-04-25 | 2011-11-30 | 上海市城市建设设计研究院 | Pile cap for cluster type pile foundation and immersed tube tunnel pile foundation |
| CN103334423A (en) * | 2013-07-09 | 2013-10-02 | 中国人民解放军后勤工程学院 | Combined type steel pipe pile |
-
2011
- 2011-04-25 CN CN2011201239064U patent/CN202090357U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261080A (en) * | 2011-04-25 | 2011-11-30 | 上海市城市建设设计研究院 | Pile cap for cluster type pile foundation and immersed tube tunnel pile foundation |
| CN103334423A (en) * | 2013-07-09 | 2013-10-02 | 中国人民解放军后勤工程学院 | Combined type steel pipe pile |
| CN103334423B (en) * | 2013-07-09 | 2016-06-29 | 中国人民解放军后勤工程学院 | A kind of combined steel pile tube |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20170425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |