CN204435391U - A kind of I shape fender post - Google Patents
A kind of I shape fender post Download PDFInfo
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- CN204435391U CN204435391U CN201520025363.0U CN201520025363U CN204435391U CN 204435391 U CN204435391 U CN 204435391U CN 201520025363 U CN201520025363 U CN 201520025363U CN 204435391 U CN204435391 U CN 204435391U
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- pile
- fender post
- horizontal support
- foundation pit
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Abstract
The utility model discloses a kind of I shape fender post, comprise multiple arrangement according to desired location and the h pile of band bracket prefabricated in advance, fixedly bear down on one Guan Liang, waist rail and prefabricated prestressed slab with ribbing between adjacent stake and stake, in conjunction with horizontal support reverse construction process; The described Guan Liang that bears down on one is cast in the top of adjacent h pile, described waist rail is cast on the bracket of adjacent h pile, described prestressed slab prefabricated with ribbing is fixed between adjacent h pile, and the Guan Liang that bears down on one all controls foundation pit deformation by being connected horizontal support with waist rail.After excavation of foundation pit completes, the vertical supporting of space enclosing structure and double vertical member and the horizontal member doing constructure body structure of horizontal support, avoid the waste of temporary support structures, also save the duration simultaneously, be conducive to the sustainable development realizing base pit engineering.
Description
Technical field
The utility model relates to a kind of I shape fender post and the double construction method doing agent structure of space enclosing structure, is particularly useful for the construction of going along with sb. to guard him excavation and building main body under ground portion of urban district large deep foundation pit.
Background technology
At present, the on-the-spot pore-forming of the many employings of base pit engineering space enclosing structure, mud off and underwater casting, curing time is longer, and pile quality is difficult to ensure, and occurs that the problem such as broken pile, folder mud is not easily repaired; Space enclosing structure mostly is temporary lining, namely gives up with rear, and constructure body structure and space enclosing structure cannot unite two into one, and cause waste of material and duration loss, and the temporary support structures such as a large amount of steel concrete is embedded in underground pollution surrounding soil; The horizontal support that space enclosing structure adopts must be removed after excavation completes, cannot as a part for agent structure, cause waste of material and duration loss equally, and during supporting removal, the secondary loading of space enclosing structure and secondary deformation cause further impact to surrounding enviroment.
Utility model content
The utility model is for the problems referred to above, proposes new pile-type and construction method, utilizes prefabricated h pile and prefabricated prestressed slab with ribbing etc., realizes space enclosing structure batch production, industrialization, improve workmanship, accelerate speed of application and precision; Supporting and protection structure and constructure body structure are united two into one in conjunction with reverse construction process, the vertical supporting of space enclosing structure and double vertical member and the horizontal member doing constructure body structure of horizontal support, avoid the waste of temporary support, shorten the duration simultaneously.
The purpose of this utility model can be reached by following measure:
A kind of I shape fender post, comprises multiple according to desired location arrangement and h pile prefabricated in advance, between adjacent fender post, is connected to form space enclosing structure by supporting member; H pile is the space enclosing structure of foundation ditch and a part for building underground space agent structure exterior wall, and is provided with the double horizontal support and the vertical supporting that do horizontal member and vertical member in constructure body structure at the top of space enclosing structure and middle part.
There is an injected hole at described h pile center, after stake is in place, carry out pile grouting, improves bearing capacity and the stability of stake.
Described each h pile comprises multistage, and be positioned at excavation of foundation pit line and be all provided with bracket with every section of upper part stake end, described bracket is positioned at the flank of I shape, for support wale; H pile with lower part at the bottom of Foundation Pit does not establish bracket, because do not excavate, does not need to support at the end, hole.
Described support member comprises the Guan Liang that bears down on one, waist rail and prefabricated prestressed slab with ribbing; The described Guan Liang that bears down on one, waist rail control foundation pit deformation by connecting horizontal support, the described Guan Liang that bears down on one is cast in the top of adjacent h pile, described waist rail is cast in fender post bracket place, below, and described prestressed slab prefabricated with ribbing is fixed between adjacent h pile.
Described horizontal support one end is fixed on fender post top and bears down on one on Guan Liang or middle part waist rail, the other end is fixed on the relevant position of foundation ditch opposite side fender post, the centre position of horizontal support is connected in stand column pile, stand column pile is as the vertical supporting of horizontal support, be horizontally supported as the horizontal carrier member providing horizontal force to control the space enclosing structure of foundation pit walls distortion during excavation of foundation pit, stand column pile is the vertical supporting ensureing that horizontal support is stable; After foundation pit construction, be horizontally supported as the horizontal member that beam forms the constructure body structure underground space, vertical supporting forms the vertical member of the constructure body structure underground space as post.
First fender post construction location is positioned, determine whether to utilize rig to set a circular hole being less than the preformed pile length of side in described fender post position as the smooth press-in of drawing hole and ensure preformed pile according to strata condition.Fender post sets a circle rotary churning pile or surely sprays stake outside foundation ditch after having constructed makes foundation pit waterproof curtain, coordinates dry operating environment during dewatering measure guarantee excavation of foundation pit.After water-stop curtain completes, carry out excavation of foundation pit, build in fender post top casting bear down on one Guan Liang and first floor horizontal support.Along with foundation ditch first floor soil excavation completes, between adjacent fender post, fix prefabricated prestressed slab with ribbing, at described prestressed slab disposed inboard prestressed reinforcement with ribbing, have resistant function to soil pressure after stake.Continue excavation to fender post bracket place, build waist rail and second layer horizontal support.Continue the lower one deck earthwork of excavation, continue construction according to method above, until excavation of foundation pit completes, build base plate and building abutment wall simultaneously.
Described I shape fender post carries out the construction method of agent structure, comprises the following steps:
The prefabricated h pile of step 1. and prestressed slab with ribbing;
The process of prefabricated h pile is as follows:
Make the template of h pile, assembling reinforcement cage, reserves injected hole at the centre mould of template, placing of concrete pile body, maintenance to designing strength of mould stripping, then stripping;
The process of prefabricated prestressed slab with ribbing is as follows:
Make the template of prestressed slab with ribbing, assembling reinforcement cage, tensioned prestressing bar, placing of concrete, maintenance to designing strength of mould stripping, stripping;
Step 2. utilizes prefabricated h pile and prestressed slab with ribbing to construct as follows;
A) the stake position of fender post and vertical supporting stand column pile is located according to designing requirement unwrapping wire;
B) looking strata condition, if piling is difficult, rig can being utilized to set a circular bore at Zhuan Wei center as drawing hole, ensure that preformed pile is pressed into smoothly, and can verticality be improved, if piling is comparatively easy, directly can carry out next step;
C) utilize pile press by prefabricated h pile segmentation press-in soil layer, vertical supporting stand column pile is also pressed in soil layer simultaneously;
D) after the fender post formed by h pile has been constructed, by h pile injected hole to pile grouting, strengthening stratum, increases the stability of stake;
E) to construct outward rotary churning pile at foundation ditch, form effective water-stop curtain together; And dry operating environment when coordinating dewatering measure guarantee excavation of foundation pit;
F) in excavation pit the earthwork to h pile stake heights of roofs, smooth foundation ditch stratum;
G) establish template in fender post topmast or make clay model, building the Guan Liang that bears down on one, and build horizontal support simultaneously, together with horizontal support is cast in the Guan Liang that bears down on one, centre connects with vertical supporting stand column pile;
H) after bear down on one Guan Liang and the horizontal support of building reach design strength, stripping;
I) continue downward excavation pit, in the I-groove of adjacent fender post, be bolted prefabricated prestressed slab with ribbing;
J) continue the bracket place of excavation pit to h pile, make the template of waist rail and second horizontal support, assembling reinforcement, builds waist rail and second horizontal support;
K) after the waist rail of building and horizontal support reach design strength, stripping, continues downward excavation pit;
L) continue downward earth excavation, repeat step I) ~ k), until be excavated to design of foundation pit height.
M) lay substrate bed course, make base plate template, assembling reinforcement, builds sole plate;
N) install lining edges wall form, from below to up cast-in-place liner abutment wall, bottom is connected with sole plate, and cast-in-place abutment wall and prefabricated prestressed slab with ribbing are superimposed, and mainly plays waterproof and flat outer surface.
O) other inner composition components of the construction building owner body structure underground space, form foundation pit system, the double underground space body doing constructure body structure of support system, construct complete.
Described segmentation press-in refers to that each h pile comprises multistage, has pressed one section of h pile, then has carried out the press-in of next section of h pile.
Segmentation press-in in described step (c) refers to that each h pile comprises multistage, has pressed one section of h pile, then has carried out the press-in of next section of h pile, connected between h pile by bolt, welding or flange.
The beneficial effects of the utility model are as follows:
By adopting prefabricated units, speed of application and construction precision are improved, and the quality of prefabricated units can ensure, the phenomenons such as hollow pile, broken pile or folder mud can not be had.
Preformed pile can be made more easily to bury by performing " drawing hole ", and guide the position of stake deflection not to occur, ensure the verticality of pile, be more conducive to the later stage as constructure body structure; Can by stratum bottom middle injected hole grouting and reinforcing stake, improve the bearing capacity on stratum near the stability of stake and stake.
Bear foundation pit earth pressure by I shape preformed pile, horizontal support provides horizontal force to control foundation pit deformation, and vertical supporting ensures horizontal support stability, three organically combines the common support system forming foundation ditch, adopt reverse construction, construction environment is good, saves the duration.
Live waist rail by the bracket on prefabricated h pile as braced structures frame, the vertical load on building abutment wall is transferred on fender post by bracket simultaneously, makes whole skin more stable.
By cast-in-place liner abutment wall, realize with prefabricated prestressed slab with ribbing superimposed, jointly form the exterior wall of the building underground space with fender post.
Utilize the horizontal support when horizontal member of constructure body structure is double does excavation of foundation pit; make the rigidity of horizontal support larger; effectively can control the horizontal distortion of foundation pit side-wall, be conducive to protecting surrounding building, be adapted at using when foundation ditch surrounding environment is strict to deformation requirements.
Foundation pit supporting system finally forms the agent structure of the building underground space, I shape preformed pile, superimposed wall form the exterior wall of the building underground space, horizontal support and vertical supporting form beam, the post component of the building underground space, greatly save constructional materials, avoid the dismounting work of the interim horizontal support of tradition and vertical supporting, a large amount of building wastes that can not produce due to dismounting.
Accompanying drawing explanation
Fig. 1 is the top view of h pile;
The front elevation drawing that Fig. 2 (a) is h pile, the left view that (b) is h pile;
Fig. 3 is the front elevation drawing of prefabricated prestressed slab with ribbing;
Fig. 4 is the top view of prefabricated prestressed slab with ribbing;
Fig. 5 is that space enclosing structure is beared down on one Guan Liang place sectional view;
Fig. 6 is space enclosing structure prefabricated prestressed slab place with ribbing sectional view;
Fig. 7 is space enclosing structure waist rail place sectional view;
Fig. 8 is foundation pit side-wall (skin) elevation;
Fig. 9 is foundation ditch centerline sectional cutaway;
In figure, 1 is h pile, and 2 is injected holes, and 3 is brackets, and 4 is water-stop curtains, 5 is prefabricated prestressed slabs with ribbing, and 5-1 is transversely prestressed bars, and 5-2 is longitudinal prestressing muscle, and 6 is cast-in-place liner abutment walls, and 7 is the Guan Liang that bear down on one, 8 is waist rails, and 9 is horizontal supports, and 10 is stand column pile, and 11 is sole plates.
In Fig. 8 and Fig. 9, sole plate less than 11 does not excavate part for foundation ditch.
Detailed description of the invention
Below in conjunction with accompanying drawing, implementation method of the present utility model is elaborated:
A kind of I shape fender post, is comprised multiple according to desired location arrangement and h pile 1 prefabricated in advance, is connected in adjacent stake with between stake by supporting member; H pile is the space enclosing structure of foundation ditch and a part for building underground space agent structure exterior wall, and the horizontal member of constructure body structure and double horizontal support and the vertical supporting doing pattern foundation pit supporting structure of vertical member.
Supporting member comprises bear down on one hat beam 7, waist rail 8 and prefabricated prestressed slab with ribbing 5; Bear down on one Guan Liang, waist rail by connect horizontal support 9 control foundation pit deformation, the Guan Liang that bears down on one is cast in the top of adjacent h pile, and waist rail is cast in fender post bracket place, and prefabricated prestressed slab with ribbing is fixed between adjacent h pile.
There is an injected hole 2 at h pile center, can carry out pile grouting after stake is in place, improves bearing capacity and the stability of stake.
Each h pile 1 comprises multistage, and the every section of stake end being positioned at excavation of foundation pit part is provided with bracket 3, and described bracket is positioned at the flank of I shape, for connecting waist rail 8; Foundation ditch does not excavate part and is not provided with bracket, does not support because do not excavate part.
Horizontal support 9 one end is connected on the Guan Liang that bears down on one of space enclosing structure, waist rail, the other end is fixed on the relevant position of foundation ditch opposite side fender post, in the middle of horizontal support, stand column pile 10 is set as vertical supporting, the horizontal carrier member of space enclosing structure is horizontally supported as during excavation of foundation pit, horizontal force is provided to control foundation pit walls distortion, stand column pile is vertical supporting, ensures the stable of horizontal support; After foundation pit construction, be horizontally supported as beam and the horizontal member of the gripper shoe formation constructure body structure underground space, vertical supporting forms the vertical member of the constructure body structure underground space as post.
First fender post construction location is positioned, determine whether to utilize rig to set a circular hole being less than the preformed pile length of side in described fender post position as the smooth press-in of drawing hole and ensure preformed pile according to strata condition.Fender post sets a circle rotary churning pile or surely sprays stake outside foundation ditch after having constructed makes foundation pit waterproof curtain 4, coordinates dry operating environment during dewatering measure guarantee excavation of foundation pit.After water-stop curtain completes, carry out excavation of foundation pit, build in fender post top casting bear down on one hat beam 7 and first floor horizontal support 9.Along with foundation ditch first floor soil excavation completes, between adjacent fender post, fix prefabricated prestressed slab with ribbing 5, at described prestressed slab disposed inboard prestressed reinforcement, have resistant function to soil pressure after stake.Continue earth excavation to built-in fitting place, build waist rail 8 and second layer horizontal support 9 at h pile bracket place.Continue excavation pit, to construct prestressed slab with ribbing and lower one deck waist rail and horizontal support, according to method above until excavation of foundation pit completes, monobloc cast base plate of foundation pit 11, last cast-in-place liner abutment wall 6, liner abutment wall forms superimposed wall with prefabricated prestressed slab with ribbing, forms the exterior wall of the constructure body structure underground space with h pile, the Guan Liang that bears down on one, waist rail and prefabricated prestressed slab with ribbing.
Concrete construction method is as follows:
1. prefabricated h pile and prestressed slab with ribbing, as shown in Figure 1, 2, prestressed slab shape with ribbing is as shown in Figure 3,4 for stake shape;
The process of prefabricated h pile is as follows:
Make the template of h pile, assembling reinforcement cage, reserves injected hole at the centre mould of template, placing of concrete pile body, maintenance to designing strength of mould stripping, then stripping;
The process of prefabricated prestressed slab with ribbing is as follows:
Make template, assembling reinforcement cage, stretch-draw transversely prestressed bars 5-1 and longitudinal prestressing muscle 5-2, placing of concrete, maintenance to designing strength of mould stripping, stripping;
2. the concrete construction method that space enclosing structure does agent structure comprises:
A) the stake position of fender post 1 and vertical supporting stand column pile 10 is located according to designing requirement unwrapping wire;
B) looking strata condition, if piling is difficult, rig can being utilized to set a circular bore at Zhuan Wei center as drawing hole, ensure that preformed pile is pressed into smoothly, and can verticality be improved, if piling is comparatively easy, directly can carry out next step;
C) utilize pile press by prefabricated h pile 1 segmentation press-in soil layer, vertical supporting stand column pile 10 is also pressed in soil layer simultaneously;
D) after the fender post formed by h pile has been constructed, by h pile injected hole 2 to pile grouting, strengthening stratum, increases the stability of stake;
E) to construct outward rotary churning pile at foundation ditch, form effective water-stop curtain 4 together; And dry operating environment when coordinating dewatering measure guarantee excavation of foundation pit;
F) in excavation pit the earthwork to h pile stake heights of roofs, smooth foundation ditch stratum;
G) establish template in fender post topmast or make clay model, building the hat beam 7 that bears down on one, and build horizontal support 9 simultaneously, together with horizontal support is cast in the Guan Liang that bears down on one, centre connects with vertical supporting stand column pile 9;
H) after bear down on one Guan Liang and the horizontal support of building reach design strength, stripping;
I) continue downward excavation pit, between adjacent fender post, be bolted prefabricated prestressed slab with ribbing 5;
J) continue excavation pit to h pile bracket 3 place, make the template of waist rail 8 and second horizontal support 9, assembling reinforcement, builds waist rail and second horizontal support;
K) after the waist rail of building and horizontal support reach design strength, stripping, continues downward excavation pit;
L) continue downward earth excavation, repeat step I) ~ k), until be excavated to design of foundation pit height.
M) lay substrate bed course, make base plate template, assembling reinforcement, builds sole plate 11;
N) install lining edges wall form, from below to up cast-in-place liner abutment wall 6, bottom is connected with sole plate, and cast-in-place abutment wall and prefabricated prestressed slab with ribbing are superimposed, and mainly plays waterproof and flat outer surface.
O) other inner composition components of the construction building owner body structure underground space, form foundation pit system, the double underground space body doing constructure body structure of support system, construct complete.
Segmentation press-in in step (c) refers to that each h pile comprises multistage, has pressed one section of h pile, then has carried out the press-in of next section of h pile, connected between h pile by bolt, welding or flange.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (5)
1. an I shape fender post, is characterized in that: comprise multiple according to desired location arrangement and prefabricated in advance h pile, between adjacent fender post, be connected to form space enclosing structure by supporting member; H pile is the space enclosing structure of foundation ditch and a part for building underground space agent structure exterior wall, and is provided with the double horizontal support and the vertical supporting that do horizontal member and vertical member in constructure body structure at the top of space enclosing structure and middle part.
2. I shape fender post as claimed in claim 1, is characterized in that: there is an injected hole at described each h pile center, after stake is in place, carry out pile grouting.
3. I shape fender post as claimed in claim 1, it is characterized in that: described each h pile comprises multistage, and there is bracket the end being positioned at every section of stake of excavation of foundation pit part, described bracket is positioned at the flank of I shape.
4. I shape fender post as claimed in claim 1, is characterized in that: described supporting member comprises the Guan Liang that bears down on one, waist rail and prefabricated prestressed slab with ribbing; The described Guan Liang that bears down on one, waist rail control foundation pit deformation by connecting horizontal support, the described Guan Liang that bears down on one is cast in the top of adjacent h pile, described waist rail is cast in fender post bracket place, and described prestressed slab prefabricated with ribbing is fixed between adjacent h pile.
5. I shape fender post as claimed in claim 1, it is characterized in that: described horizontal support one end is fixed on fender post top and bears down on one on Guan Liang or middle part waist rail, the other end is fixed on the relevant position of foundation ditch opposite side fender post, the centre position of horizontal support is connected in stand column pile, stand column pile is as the vertical supporting of horizontal support, be horizontally supported as the horizontal carrier member providing horizontal force to control the space enclosing structure of foundation pit walls distortion during excavation of foundation pit, stand column pile is the vertical supporting ensureing that horizontal support is stable; After foundation pit construction, be horizontally supported as the horizontal member that beam forms the constructure body structure underground space, vertical supporting forms the vertical member of the constructure body structure underground space as post.
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CN201520025363.0U CN204435391U (en) | 2015-01-14 | 2015-01-14 | A kind of I shape fender post |
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CN201520025363.0U CN204435391U (en) | 2015-01-14 | 2015-01-14 | A kind of I shape fender post |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104594361A (en) * | 2015-01-14 | 2015-05-06 | 济南轨道交通集团有限公司 | Construction method of H-shaped enclosure pile and enclosure structure as main structure |
CN110206045A (en) * | 2019-06-20 | 2019-09-06 | 珠海荣坚基础工程有限公司 | A method of applied to building supporting and protecting row pile pit |
-
2015
- 2015-01-14 CN CN201520025363.0U patent/CN204435391U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104594361A (en) * | 2015-01-14 | 2015-05-06 | 济南轨道交通集团有限公司 | Construction method of H-shaped enclosure pile and enclosure structure as main structure |
CN104594361B (en) * | 2015-01-14 | 2016-08-24 | 济南轨道交通集团有限公司 | A kind of I shape fender post and building enclosure also serve as the construction method of agent structure |
CN110206045A (en) * | 2019-06-20 | 2019-09-06 | 珠海荣坚基础工程有限公司 | A method of applied to building supporting and protecting row pile pit |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20170114 |