CN205636750U - Permanent supporting assembled cellar structure system of intensification - Google Patents

Abstract

The utility model discloses a permanent supporting assembled cellar structure system of intensification, this system includes cellar structure's basement outer wall and basement floor, the fender pile single or multirow excavation supporting uses, single guan liang and the foundation ditch outside concrete construction road of strutting pile bolck portion is built as an organic wholely, be equipped with overhanging support between a basement outer wall and the fender pile, the top of propping up the fender pile is equipped with guan liang, adjacent row's a fender pile is through hat roof beam interconnect, basement outer wall and basement floor all adopt the prefabricated plate. The utility model discloses the foundation ditch realizes that the basement part adopts the fabricated construction on adopting the basis of permanent supporting structure, and on -the -spot construction convenience is swift, and dry mass easily guarantees, can effectively promote production efficiency, and rubbish is construct in the reduction of great degree, can realize that forever changing of supporting construction combines with underground structure's assemblyization, realize architectural structure design and supporting construction design organic unity.

Description

A kind of intensive permanent support assembled basement structure system

Technical field

This utility model relates to underground engineering, a kind of intensive permanent support assembled basement structure system.

Background technology

Building structure field, precast reinforced concrete structure becomes one of important directions of building structure development, compared to cast-in-place Xoncrete structure, fabricated construction has architecture quality and is prone to ensure, Assembling is convenient and swift, can effective improving production efficiency, Reduce building waste largely, there is preferable economic and environmental benefit.Present stage, precast reinforced concrete structure is most only It is applied to superstructure structure, owing to basement structure External Wall is waterproof and Crack Control proposes higher requirement, so concrete Precast construction application in basement structure is relatively fewer.

In base pit engineering especially deep-foundation pit engineering, retaining wall type supporting construction based on support pile is common deep foundation pit support shape One of formula, in conventional building construction design, foundation pit supporting construction is typically considered to provisional working measure, only at Underground Construction Stage plays a role, and just discards underground after foundation ditch backfill, and construction material and social resources are caused waste greatly by this, along with China's building industrialization fast development, support pile is used widely in Deep Foundation Pit Supporting Project, if but can enter these stakes Row utilizes further, then can be greatly saved the energy, additionally, existing basement is built complex, operation is various, it is impossible to have Effect utilizes foundation pit supporting system, and aboveground area is substantially reduced again now, needs to be made full use of the underground space, therefore Need the structure of the basement being provided that speed of application and the saving energy is carried out the most profound research.

Utility model content

For the problems referred to above, in order to solve the deficiencies in the prior art, spy arranges a kind of intensive permanent support assembled basement Structural system, i.e. excavation slope use notch cuttype supporting based on multiple rows of prefabricated pile, and by supporting member by supporting construction and master Body structure combines, on this basis the prefabricated construction of realization body building underground structure, by supporting construction permanence and underground Standard combines, formed assembled permanent support structural system, contribute to promote urban underground space towards intensive with Sustainable development.

A kind of intensive permanent support assembled basement structure system, including the outer wall of basement and the ground that constitute basement structure Lower room floor, including the support pile of single row or multiple rows pattern foundation pit supporting structure, the top of support pile is provided with Guan Liang, when support pile is single Time, outside the Guan Liang at single support pile top and foundation ditch, concrete construction road pours and is integrated, when support pile is multiple rows of, Outside Guan Liang and the foundation ditch at one row's support pile top, outside, concrete construction road pours and is integrated, by construction road self severe And and the soil body between friction to first row support pile jacking row anchor, to reduce displacement at pile top, outer wall of basement and support pile Between be provided with overhanging support, the support pile of adjacent row is connected with each other by Guan Liang, and outer wall of basement and basement floor all use pre- Making sheet；Guan Liang is prefabrication, and outer wall of basement and basement floor all use precoated plate simultaneously, and to realize right more conveniently Building of basement, additionally, because the support pile of foundation ditch is connected the cooperation basement structure formation permanent supporting in underground with overhanging support Structural system, and the part that support pile supports as basement, not only achieve the utilization of support pile, and make basement Supporting is more firm；Because outer wall of basement and basement floor use precoated plate, total not only will not weaken making of basement With the life-span, and substantially reduce the engineering time of basement.

Further, every section of hat beam end is provided with the built-in fitting being easy to adjacent Guan Liang splicing, and adjacent Guan Liang passes through convex groove After splicing, being connected further by built-in fitting, built-in fitting can be affixed to be preced with the steel plate of beam sidewall, and Guan Liang exists After splicing, steel plate built-in fitting is connected realization fastening by bolt with Guan Liang；Sum it up, lateral branch fender pile top Guan Liang is reinforcing bar Concrete prefabricated Guan Liang, it is possible to use reinforced concrete cast-in-situ Guan Liang；Medial branch fender pile top Guan Liang is reinforced concrete cast-in-situ hat Beam, it is possible to first use precast reinforced concrete piles splicing, then by being connected with lateral branch fender pile at outside casting concrete.

Further, when support pile is multiple rows of, the support pile dislocation of adjacent row lays out pile, from medial branch fender pile to lateral branch fender pile In the notch cuttype supporting gradually risen, the mode that stairstepping supporting allows for side slope control effect and arranges；So form upper half The compound supporting construction that part is Single row pillars supporting, the latter half is Double-row Piles Support, in the pattern foundation pit supporting structure stage, rear campshed top Portion Guan Liang provides a fulcrum for front pile body of row pile, effectively reduces front-seat support pile bending, makes full use of the latter half double-row pile The feature that supporting construction rigidity is bigger, reduces supporting construction horizontal displacement, increases the stability in the large of supporting construction.

Further, described Guan Liang includes multistage splice sections, and every section of splice sections end is provided with is easy to the pre-buried of adjacent Guan Liang splicing Part；Or described Guan Liang is cast in situs part, it is preferred that: inner side Guan Liang use cast in situs method realize inside with The unification of outside Guan Liang pours, and the Guan Liang in outside uses multistage splice sections, and one end of every section of Guan Liang is provided with groove, and the other end is provided with Protruding to realize splicing, before and after Guan Liang uses, convex groove cooperation can realize quickly splicing.

When using two row's notch cuttype supportings, the most relatively low second row support pile stake top mark height location negative one layer basement floor mark Height, the stake top of second row support pile is connected by Guan Liang, pour with first row support pile pile body outside second row supporting dowel crown beam into Integrally, front two rows support pile is connected with each other by the Guan Liang of second row support pile, when for multiple rows of support pile, and propping up of lower position Pour with adjacent support pile pile body outside the hat beam at fender pile top and be integrated.

Further, support pile uses concrete precast pile, for pile for prestressed pipe or prestress square pile or prestressing force sheet pile, in order to Supporting effect is more stable, and the support pile dislocation of adjacent row lays out pile.

Further, the described overhanging prefabricated reinforced concrete that is supported for supports, and overhanging support one end is pre-buried by reinforcing bar or steel plate Part is connected with the Guan Liang of the pile body being located at support pile or top, for convenience of fixing, fixes waist rail on the pile body of support pile, logical Crossing the overhanging support of waist rail to be connected with pile body, the other end is connected with basement floor by built-in fitting, and waist rail is come of age the setting of beam, makes Obtain and be originally mainly evenly distributed on support pile by the power of basement form bracing, and the setting of multiple rows of support pile, the most effectively Avoid stress concentration and cause structural damage.

For realizing the connection of basement bottom board and support pile, plain concrete supports and is positioned at sole plate plane, supports one end and ground Lower room base plate connects, and one end pours with support pile pile body and is connected, and this support is subjected only to axial compressive force, so can be clear at the fertile groove of construction Directly pouring molding by plain concrete after reason is clean, support can do beam-like, it is also possible to makes tabular.

Built-in fitting link position can be by welding, it is possible to be bolted, owing to overhanging support is subjected only to axial compressive force, so The connection of two ends built-in fitting only plays fixation, it is contemplated that supporting member forever to play a role with basement structure, therefore needs Carry out the anticorrosion of steel beam column at link position, it is ensured that its life requirement.

Further, described Guan Liang has the hole slot for fixing support pile stake top, it is simple to preferably by prefabricated support pile and Guan Liang It is connected as an entirety.

Further, also include the jig for support pile being positioned when support pile is constructed, use H profile steel to be welded into Type.

In this utility model, permanent support structure is by combining foundation pit supporting construction with hypogee agent structure, supporting is tied Allosteric transformation is that a part for agent structure forever plays a role, and can give full play to supporting construction stiffness by itself, effectively reduce basement Exterior wall thickness, on the one hand can effectively reduce construction costs, on the other hand also makes basement structure prefabricated construction be possibly realized, Help lend some impetus to urban underground space construction and put down development towards intensive.

Additionally, the splicing position of component each to foundation ditch top carries out water-proofing treatment, the contact gap such as adjacent Guan Liang uses mortar Floating sealing.

The construction method of structural system, Specific construction step is as follows:

Step 1): construction road outside construct outside foundation ditch edge first row support pile, and construction stake apical cap beam and foundation ditch, shape Become the first rank supporting；

Step 2): second row support pile of constructing inside foundation ditch edge, second row support pile lays out pile with the dislocation of first row support pile；

Step 3): carry out excavation of foundation pit for the first time, be excavated to second row support pile stake top mark bar position；

Step 4): construction second row support pile apical cap beam, form second-order supporting；

Step 5): carrying out second time excavation of foundation pit, be excavated to cheat end designed elevation, the soil body between two campsheds does not excavates；Stop Only excavate or continue construction the 3rd row's support pile and excavate；

Step 6): pour basement bottom board, between basement bottom board and second row support pile, pour plain concrete support；

Step 7): construction bottom basement agent structure, including the basement wall, prefabricated and installation, the ground of basement floor Pouring of lower room beam column component；

Step 8): carry out more last layer basement structure construction successively, including the basement wall, basement floor prefabricated with Installing, pouring of basement beam, post and supporting member, until under ground portion main structure construction terminates；

Step 9): perform outer wall of basement water-proof heat-insulation layer；

Step 10): soil mass of foundation pit backfill compaction in layers.

The beneficial effects of the utility model are:

(1), in this utility model, foundation ditch uses notch cuttype supporting based on double or multiple rows of prefabricated pile to excavate with classification, has building Industrialization degree is high, site operation is convenient and swift, slope deforming controls the features such as effective.

(2), in this utility model, foundation ditch uses permanent support structure based on double prefabricated pile classification supporting, by by pattern foundation pit supporting structure Structure combines with hypogee agent structure, and the part that supporting construction is changed into agent structure forever plays a role, and can fill Supporting construction stiffness by itself is waved in distribution, effectively reduces outer wall of basement thickness, on the one hand can effectively reduce construction costs, the opposing party Face also makes basement structure prefabricated construction be possibly realized, and helps lend some impetus to urban underground space construction and sends out towards intensive putting down Exhibition.

(3) in this utility model, on the basis of foundation ditch uses permanent support structure, it is achieved basement part uses fabricated construction, Compared to cast-in-place concrete structure, site operation is convenient and swift, and architecture quality is prone to ensure, can effective improving production efficiency, relatively The minimizing building waste of big degree, has preferable economic and environmental benefit.

(4) assemblingization of permanence and underground structure that the system in this utility model can realize supporting construction organically combines, it is achieved Architectural Structure Design and support structure design organic unity, can effectively promote the building industrialization of China, promotes urban underground space Towards intensive and sustainable development.

Accompanying drawing explanation

Fig. 1 is this utility model schematic diagram based on two-layer basement structure.

Fig. 2 is this utility model horizontal profile schematic diagram in first row supporting dowel crown beam position.

Fig. 3 is this utility model horizontal profile schematic diagram in second row supporting dowel crown beam position.

Fig. 4 is first row support pile and the side view being preced with beam rigging position in this utility model.

Fig. 5 is first row support pile and the horizontal sectional drawing being preced with beam rigging position in this utility model.

Fig. 6 is the schematic diagram of this utility model support pile jig.

Fig. 7 is this utility model schematic diagram based on three layers of basement structure.

Each label implication in figure: concrete construction road outside 1-support pile, 2-prefabricated crown beam, 3-cast-in-place Guan Liang, 4-foundation ditch Road, 5-outer wall of basement, 6-basement floor, 7-basement bottom board, 8-outer wall of basement crossbeam, the overhanging support of 9-, 10 bases The overhanging support of plinth base plate, 11-built-in fitting, 12-fender rod installing hole, 13-projection, 14-guard rail, 15-support pile location Mould.

Detailed description of the invention

Below in conjunction with Figure of description and specific embodiment, the utility model will be further described:

Embodiment 1

As it is shown in figure 1, the underground structure of this case history is two-layer basement, underground structure composition includes prefabricated outer wall of basement 5, basement floor 6, basement bottom board 7, outer wall of basement crossbeam 8 main member such as grade.

Shown in Fig. 1, the foundation pit supporting construction of this case history is double pile for prestressed pipe notch cuttype supporting construction, mainly includes propping up The main members such as fender pile 1, prefabricated crown beam 2, cast-in-place hat beam 3.

Shown in Fig. 1, in this case history, first row support pile is pile for prestressed pipe, and outside stake apical cap beam 2 and foundation ditch, concrete is executed Work road 4 connects, and outside foundation ditch, concrete construction road 4 is concrete cast-in-situ structure, by steel tie and lateral branch fender pile Guan Liang connects；By construction road self severe and and the soil body between friction to first row support pile jacking row anchor, to subtract Little displacement at pile top, construction road width meets code requirement.

Shown in Fig. 2, Fig. 4 and Fig. 5, the support pile of adjacent row is connected with each other by Guan Liang, and first row support pile top, outside is preced with Beam 2 is prefabricated components, each prefabricated section be respectively arranged at two ends with protruding 13 and groove, and be provided with steel plate built-in fitting 11, such as Fig. 4 Shown in Fig. 5, adjacent prefabricated crown beam 2 is spliced by protruding 13 grooves, and carries out bolt by steel plate built-in fitting 11 Fixing；Hat back end is reserved with fender rod installing hole 12, can be carried out the installation of guard rail 14 by installing hole.

Shown in Fig. 1, in this case history, second row support pile is pile for prestressed pipe, and stake apical cap beam absolute altitude is first time excavation of foundation pit Depth elevation, approximates negative one layer basement floor absolute altitude, arranges outside twice between second row support pile and outer wall of basement 5 Stretching support, the overhanging reinforced concrete cast-in-situ that is supported for of described agent structure supports, and overhanging support one end leads to steel plate built-in fitting and second Row's support pile pile body or top cast-in-place hat beam 3 connect, and the other end is by reinforcing bar or steel plate built-in fitting and outer wall of basement crossbeam 8 After connection, then being connected with basement floor 6, the overhanging plain concrete that is supported for of described sole plate supports, plain concrete support level In sole plate plane, supporting one end and be connected with basement bottom board 7, one end pours with support pile 1 pile body and is connected.

Shown in Fig. 1, in this case history, main building comprises two-layer basement, outer wall of basement 5 and basement floor 6 and is Prefabricated components, basement column and crossbeam all use site concrete, water monoblock type and connect after using each other.

Shown in Fig. 3, in this case history, the dislocation of front two rows support pile lays out pile, and props up with first row outside second row supporting dowel crown beam Fender pile pile body pours and is integrated, and front two rows support pile is connected with each other by the Guan Liang of second row support pile.

Shown in Fig. 1, to carrying out soil body backfill between outer wall of basement and support pile after Underground Construction terminates, backfill the soil body Want compaction in layers.

The construction method of structural system, Specific construction step is as follows:

Step 1): the first row support pile in outside of constructing outside foundation ditch edge, and outside construction stake top prefabricated crown beam 2 and foundation ditch Construction road 4, forms the first rank supporting；

Step 2): second row support pile of constructing inside foundation ditch edge, second row support pile lays out pile with the dislocation of first row support pile； Second row support pile stake top mark height is in first row support pile and the most fair with negative one layer basement floor 6；

Step 3): carry out excavation of foundation pit for the first time, be excavated to second row support pile stake top mark bar position；

Step 4): the cast-in-place hat beam 3 on construction second row support pile top, form second-order supporting；

Step 5): carrying out second time excavation of foundation pit, be excavated to cheat end designed elevation, the soil body between two campsheds does not excavates；

Step 6): pour basement bottom board 7, between basement bottom board 7 and second row support pile, pour plain concrete support；

Step 7): construction bottom basement agent structure, including outer wall of basement 5, the prefabricated and installation of basement floor 6, Pouring of basement beam column component；Prefabricated overhanging support 9 is installed between bottom basement floor 6 and second row support pile；

Step 8): carry out more last layer basement structure construction successively, including outer wall of basement 5, basement floor 6 prefabricated With installation, pouring of basement beam, post and supporting member, until under ground portion main structure construction terminates；

Step 9): perform outer wall of basement 5 water-proof heat-insulation layer；

Step 10): soil mass of foundation pit backfill compaction in layers.

Support pile 1 work progress, according to support pile 1 size and the position that lays out pile, customization support pile 1 is constructed jig in advance, By mould, stake holes is accurately positioned, and utilizes existing engineering measure to ensure support pile 1 perpendicularity, it is ensured that support pile 1 Construction precision.

Support pile jig 15 is customized according to concrete engineering, as shown in Figure 6, uses H profile steel welding fabrication and can weigh Multiple use, owing to die length limits, its sequence of construction fixes mould on request for first, construction supporting in mould in-scope Stake 1, construction terminate after by mould release, and move to next section of construction location and again fix, execute successively in the new fixed position of mould Next group support pile 1 of work, pushes ahead construction successively according to support pile sequence of construction, constructs after terminating to support pile jig 15 reclaim.

Embodiment 2

The present embodiment with the difference of embodiment 1 is:

The overhanging armored concrete precast support that is supported for of described first, overhanging support one end is by built-in fitting and support pile 1 pile body Or waist rail connects, the other end is connected with outer wall of basement floor 6 by built-in fitting, and overhanging support is by support pile and basement structure Being connected as a single entity, support pile, as permanent part long-term role, can effectively reduce soil pressure suffered by outer wall of basement, thinningly Lower outdoor wall thickness.

Embodiment 3

As it is shown in fig. 7, the underground structure of this case history is three layers of basement, its concrete structure and working procedure and and embodiment 1 is similar, and foundation pit supporting construction is staged based on prefabricated pile 1 layering supporting, outer wall of basement 5 and basement floor 6 Being precoated plate, basement beam column component is concrete cast-in-situ component.

Compared with Example 1, the difference of embodiment 3 is that its underground structure is three layers of basement, supporting construction and underground Being provided with three roads altogether between outdoor wall to support, support and maintain an equal level with each layer room floorboard, the overhanging support of sole plate 10 is still that element is mixed Solidifying soil supports, and the overhanging support of agent structure 9 of upper two-layer is armored concrete precast support.

The foregoing is only preferred embodiment of the present utility model, be not whole embodiment of the present utility model, not in order to Limit this utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement made Deng, within should be included in protection domain of the present utility model.

In addition to technical characteristic described in description, remaining technical characteristic is all known to a person skilled in the art technology, in order to highlight this reality With novel innovative characteristics, above-mentioned technical characteristic does not repeats them here.

Claims (9)

1. an intensive permanent support assembled basement structure system, it is characterised in that include the underground of basement structure Outdoor wall and basement floor, the support pile of single row or multiple rows pattern foundation pit supporting structure, be provided with overhanging between outer wall of basement and support pile Supporting, the top of support pile is provided with Guan Liang, when support pile is single, and concrete outside the Guan Liang at single support pile top and foundation ditch Construction road pours and is integrated, when support pile is multiple rows of, and concrete outside the Guan Liang at outermost one row's support pile top and foundation ditch Construction road pours and is integrated, and the support pile of adjacent row is connected with each other by Guan Liang；Outer wall of basement and basement floor all use Precoated plate.

2. structural system as claimed in claim 1, it is characterised in that when support pile is multiple rows of, from medial branch fender pile to Lateral branch fender pile is in the notch cuttype supporting gradually risen.

3. structural system as claimed in claim 1, it is characterised in that described Guan Liang includes multistage splice sections, every section of splicing Section end is provided with the built-in fitting being easy to adjacent Guan Liang splicing；Or described Guan Liang is cast in situs part.

4. structural system as claimed in claim 3, it is characterised in that one end of every section of splice sections is provided with groove, the other end It is provided with protruding to realize splicing.

5. structural system as claimed in claim 2, it is characterised in that support pile uses concrete precast pile, for prestressing force Pile tube or prestress square pile or prestressing force sheet pile, the support pile dislocation of adjacent row lays out pile.

6. structural system as claimed in claim 3, it is characterised in that every section of hat one end, beam splice sections two ends is provided with projection, The other end is provided with the groove with male cooperation, can realize Guan Liang by protruding and groove and quickly splice.

7. structural system as claimed in claim 1, it is characterised in that the described overhanging prefabricated reinforced concrete that is supported for props up Support, overhanging support one end is connected with the Guan Liang of the pile body being located at support pile or top, for side by reinforcing bar or steel plate built-in fitting Just fix, the pile body of support pile is fixed waist rail, be connected with basement floor by built-in fitting by waist rail one end.

8. structural system as claimed in claim 1, it is characterised in that the described overhanging plain concrete that is supported for supports, and element is mixed Solidifying soil supports and is positioned at sole plate plane, supports one end and is connected with basement bottom board, and one end pours with support pile pile body and is connected.

9. structural system as claimed in claim 1, it is characterised in that described Guan Liang has for fixing support pile stake top Hole slot.