CN104818728A - Permanent supporting system with basement floor and supporting piles capable of working together - Google Patents
Permanent supporting system with basement floor and supporting piles capable of working together Download PDFInfo
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- CN104818728A CN104818728A CN201510163461.5A CN201510163461A CN104818728A CN 104818728 A CN104818728 A CN 104818728A CN 201510163461 A CN201510163461 A CN 201510163461A CN 104818728 A CN104818728 A CN 104818728A
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- basement
- soldier pile
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- overhanging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The invention discloses a permanent supporting system with a basement floor and supporting piles capable of working together. The system comprises the foundation pit supporting piles, horizontal outward-extending supports, a waist beam and other components, wherein the horizontal outward-extending support, the waist beam and the other components are attached to a structure of the basement floor. In the excavating stage of the foundation pit, pre-stressed anchor cables are adopted by the supporting piles for anchorage; in the construction stage of a basement, the permanent outward-extending supports are arranged to replace anchor rods to bear horizontal action force of the supporting piles; and the supporting structure system can permanently play a role along with a main structure. The permanent supporting system serves as a new underground space supporting system to convert a temporary foundation pit supporting structure into the permanent underground supporting structure, material performance is fully utilized, the construction cost is reduced, and the underground environment can be protected.
Description
Technical field
The invention belongs to industry and civilian construction foundation field, particularly a kind of basement floor and the cooperative permanent support system of soldier pile.
Background technology
At deep foundation pit of construction engineering field, based on the piled anchor foundation pit supporting construction of bored pile as one of main provisional pattern foundation pit supporting structure form, significant wastage is caused to constructional materials and social resources.In traditional design thinking, it is working measure that base pit engineering belongs to provisional, and Design of Main Structure is often ahead of the design of foundation pit supporting construction, to cause in design process both disconnections.Permanent foundation pit supporting system based on bored pile is by permanent overhanging support, agent structure under ground portion is combined with concrete support stake, forms horizontal Path of Force Transfer and the Lateral Resistant System of main body under ground portion horizontal structure and support system shared rock and soil pressure.New technology will effectively reduce construction costs, economize on resources, protection of the environment, promote the sustainable development of urban construction.
Summary of the invention
For solving the problem, the invention provides one: changing existing provisional foundation pit supporting construction system is permanent foundation pit supporting construction system, give full play to the basement floor of the permanent effect of support system and the support system of the cooperative permanent support system of soldier pile.
To achieve these goals, the present invention adopts following technical scheme:
Overhanging support is set between outer wall of basement and soldier pile, described overhanging support comprises the overhanging support of Base isolation system and the overhanging support of agent structure, the overhanging support of described Base isolation system is positioned at Base isolation system plane, and two ends are connected with outer wall of basement and soldier pile respectively; The overhanging support of described agent structure is positioned at the beam slab plane of each layer corresponding height, and its one end is connected with the beams and slabs of agent structure, and the other end is connected with fender post by waist rail; Described soldier pile becomes a part for the permanent support system in underground under the connection of described overhanging support and waist rail.
Described soldier pile adopts concrete drilling bored concrete pile, underground space structure at least one deck of described agent structure.
Each layer beam slab of described waist rail and agent structure is positioned at same plane, and described waist rail is connected with soldier pile by built-in fitting, and described waist rail is reinforced concrete structure.
The overhanging support of described Base isolation system is that plain concrete supports.
The upper surface of the overhanging support of described Base isolation system flushes with raft plate surface.
The bottom process of the overhanging support of described Base isolation system comprises the thick plain concrete cushion layer of bottom 200mm, and the rubble that on it, grating is good, middle sand cushion.
Described agent structure is overhanging is supported for reinforced concrete support.
The overhanging support of described agent structure is connected by the beams and slabs of reserved steel bar with the agent structure of corresponding height.
The backfill soil body is filled with between described outer wall of basement and soldier pile.
Described outer wall of basement is provided with insulation water-proof layer.
A construction technology for basement floor and the cooperative permanent support system of soldier pile, comprises the following steps:
Step 1: perform soldier pile, carries out excavation of foundation pit, performs the support system in excavation of foundation pit stage;
Step 2: carry out foundation ditch bottom cushion, construction Base isolation system and overhanging support thereof;
Step 3: carry out the main structure construction of bottom basement, after the main structure construction of bottom basement, carries out the construction of the overhanging support of first agent structure and corresponding waist rail;
Step 4: carry out the construction of the more overhanging support of last layer basement agent structure and corresponding waist rail successively until basement first floor floor and overhanging Construction of Supporting terminate;
Step 5: fertile groove of constructing backfills the soil body and compaction in layers.
Wherein, in described step 1, soldier pile adopts the stake of concrete drill hole poured support, and its work progress comprises the welding of reinforcing cage, rig pore-forming, install reinforcing cage, perfusion pile concrete, the construction of stake apical cap beam, carries out anchor bolt construction.
In step 1, the support system in described excavation of foundation pit stage adopts the pile-anchor system of concrete drilling bored concrete pile.
In step 2, after described Base isolation system construction terminates, the building waste between cleaning raft panel edges and foundation pit supporting pile in dead slot, lays plain concrete cushion layer; Described plain concrete cushion layer backfills the good rubble of grating, medium sand.
In step 2, the thickness of the overhanging support of described Base isolation system is not less than 500mm.
In step 2, remove and reclaim anchor pole described in first, the dismounting condition of described anchor pole is: the overhanging support of described Base isolation system reaches the design strength of 80%.
In step 3, the overhanging support of described first agent structure follows basement bottom floor slab construction closely and carries out, and absolute altitude is positioned in floor level.
In step 3, remove the described anchor pole reclaiming corresponding height, the dismounting condition of described anchor pole is: the intensity of the overhanging support of described agent structure of corresponding height reaches the design strength of 80%.
In step 3, waist rail is connected with foundation pit supporting pile by built-in fitting
In step 4, after basement first floor floor and overhanging Construction of Supporting terminate, carry out the waterproof of outer wall of basement, heat preservation construction successively, fertile groove of constructing backfills the soil body and compaction in layers.
Beneficial effect of the present invention is:
In the present invention, the Main Function of overhanging support is contact agent structure and supporting and protection structure, transmits horizontal force; Waist rail has two effects, and connected by retaining piles as a whole by waist rail on the one hand, on the other hand, the concentrated force that overhanging support is transmitted can be evenly distributed to each campshed by waist rail, avoids stress to concentrate and causes structural deterioration.By the acting in conjunction of permanent overhanging support and waist rail, soldier pile and underground space main body floor are combined, form space lateral resisting structure system, and enrich force path by backfill power transmission.
The present invention makes every effort to agent structure System Design and dominates foundation pit supporting system design, changes the present situation that base pit engineering and structure design in the past depart from.
The present invention achieves the permanence effect of foundation pit supporting construction on the basis of original provisional pattern foundation pit supporting structure theory, is the tremendous increase to traditional pattern foundation pit supporting structure theory.
The present invention changes the present situation that foundation pit supporting system in the past goes out of use after the main structure construction of underground; achieve foundation pit supporting construction by provisional to permanent transformation; save construction cost; in conjunction with the recycling of anchor cable; protection of the environment, promotes the sustainable development that urban underground space is built.
Use permanent foundation pit supporting construction form, effectively can improve the loading characteristic of supporting and protection structure and Main Underground body structure, utilize the reasonable mechanical of overhanging support, common anchor cable can be replaced with Recyclable anchor rope, while guarantee structural safety, cost-saving, economize on resources, more meet the theory of green building.
This invention can be played a great role in the Pile-Anchor Supporting for Deep Excavation structural system widely applied, can change existing provisional foundation pit supporting construction system is permanent foundation pit supporting construction system, give full play to the permanent effect of support system, the horizontal stress that effective reduction agent structure outer wall of basement is born, save construction cost, reduce construction costs.
Accompanying drawing explanation
Fig. 1 is the integral structural system figure of patent of the present invention.
Fig. 2 is the overhanging support of patent of the present invention, waist rail and interdependent node structure vertical cross section detail drawing.
Fig. 3 is the overhanging support of patent of the present invention, waist rail and interdependent node tectonic level sectional detail drawing.
Each label implication in figure: in 1-concrete drilling bored concrete pile, the overhanging support of 2-Guan Liang, 3-agent structure, the overhanging support of 4-Base isolation system, 5-rubble, sand bed, 6-outer wall of basement, 7-basement floor, 8-Base isolation system, 9-foundation pad, 10-backfill the soil body, 11-waist rail, 12-outer wall of basement waterproofing course, 13-outer wall of basement insulation layer, 14-built-in fitting.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Embodiment 1:
Shown in Fig. 1, excavation of foundation pit and Underground Construction stage, pattern foundation pit supporting structure adopts pile-anchor supporting system.
Shown in Fig. 2, the permanent overhanging support of first is the overhanging support 4 of Base isolation system, is positioned at Base isolation system 8 plane, is that plain concrete supports.
Support system comprises concrete drilling bored concrete pile 1, hat beam 2, the overhanging support 3 of agent structure, the overhanging support 4 of Base isolation system, sand bed 5 in rubble, outer wall of basement 6, basement floor 7, Base isolation system 8, foundation pad 9, the backfill soil body 10, waist rail 11, outer wall of basement waterproofing course 12, outer wall of basement insulation layer 13, built-in fitting 14.
Shown in Fig. 2, other beyond the overhanging support of first support the floor level being positioned at corresponding height, it is the overhanging support of agent structure, belong to reinforced concrete support, be connected by the floor member of reserved steel bar with the agent structure of corresponding height, support outside and act on waist rail 11, waist rail 11 is connected with soldier pile by steel plate built-in fitting 14.
Basement floor and soldier pile cooperative permanent support system construction technology comprise the following steps:
(1) construction of concrete drilling bored concrete pile, comprises the welding of reinforcing cage, rig pore-forming, install reinforcing cage, perfusion pile concrete, stake apical cap beam 2 constructs;
(2) excavation of foundation pit and prestressed anchor construction;
(3) foundation ditch bottom cushion 9 and Base isolation system 8 is performed;
(4) the overhanging support 4 of Base isolation system is constructed, the overhanging support 4 of Base isolation system is set between Base isolation system 8 and foundation pit supporting pile, this is supported for permanent plain concrete and supports, Specific construction technique is: after foundation pad 9 and Base isolation system 8 construction terminate, fertile groove of constructing between raft panel edges and foundation pit supporting pile is cleared up, first lay the thick plain concrete bed course of 200mm at the fertile trench bottom of sky, certain thickness rubble is backfilled again on bed course, medium sand, and in rubble, on sand bed 5, build the overhanging support of Base isolation system 8, the upper surface of described overhanging support and Base isolation system 8 upper surface flush, the overhanging support of Base isolation system 4 is constructed complete,
(5) bottom basement main structure construction;
(6) the overhanging support of agent structure 3 and waist rail 11 are constructed: in bottom basement floor 7 plane, arrange the overhanging support 3 of second agent structure and waist rail 11, waist rail 11 and this support are reinforced concrete support, its work progress follows basement bottom floor slab construction closely to carry out, absolute altitude is positioned in ground floor board plane, be connected with basement floor 7 by reserved steel bar, waist rail 11 is connected with foundation pit supporting pile by built-in fitting 14, and the overhanging support 3 of second agent structure completes;
(7) construction of more last layer basement agent structure and waist rail 11 and the overhanging support 3 of corresponding agent structure is carried out successively;
(8), after first floor basement floor 7 and overhanging Construction of Supporting terminate, carry out the construction of outer wall of basement waterproofing course 12, outer wall of basement insulation layer 13 successively, especially the waterproofing work of multiple knot;
(9) the also compaction in layers of fertile groove of the constructing backfill soil body 10.
Embodiment 2
Basement floor and soldier pile cooperative permanent support system construction technology comprise the following steps:
(1) bored pile 1 is performed;
(2) excavation pit and perform anchor pole;
(3) foundation pad 9 and Base isolation system 8 is performed;
(4) between Base isolation system 8 and soldier pile 1, arrange permanent plain concrete to support, the i.e. overhanging support 4 of Base isolation system, Specific construction technique is: after the construction of raft plate terminates, building waste in dead slot between cleaning raft panel edges and foundation pit supporting pile, lay the plain concrete bed course that 200mm is thick, layer of sand 5 in the rubble that backfill grating is good, build in raft board plane and be not less than the thick plain concrete horizontal support of 500mm, the overhanging Construction of Supporting of first is complete;
(5) first anchor cable is removed and is reclaimed: after the support of first element concrete reaches the design strength of 80%, remove and reclaim first anchor cable;
(6) bottom basement main structure construction;
(7) the overhanging support of agent structure is performed: perform the overhanging support of second agent structure, second is supported for reinforced concrete structure, follow basement bottom floor slab construction closely to carry out, be arranged between outer wall of basement 6 and concrete drilling bored concrete pile 1, absolute altitude is positioned in floor level, and by being arranged on reinforced concrete waist rail 11 power transmission of corresponding height between soldier pile 1;
(8) second anchor cable is removed and is reclaimed: after the overhanging support of second steel concrete reaches the design strength of 80%, removes and reclaims first anchor cable;
(9) carry out the construction of more last layer basement agent structure and overhanging structure successively, and carry out the recovery of respective anchors rope;
(10), after basement first floor floor and overhanging Construction of Supporting terminate, carry out the waterproof of outer wall of basement, heat preservation construction successively, especially the waterproofing work of multiple knot;
(11) fertile groove of constructing backfills the soil body and compaction in layers.
The present invention is a kind of basement floor and the cooperative permanent support system of soldier pile, by setting up permanent overhanging support, waist rail and the backfill soil body, between foundation pit supporting pile and underground space structure, set up the flat force transfer system of composite water, play effectiveness to realize this lateral resisting structure system is permanent.
Claims (10)
1. a basement floor and the cooperative permanent support system of soldier pile, it is characterized in that: overhanging support is set between outer wall of basement and soldier pile, described overhanging support comprises the overhanging support of Base isolation system and the overhanging support of agent structure, the overhanging support of described Base isolation system is positioned at Base isolation system plane, and two ends are connected with outer wall of basement and soldier pile respectively; The overhanging support of described agent structure is positioned at the beam slab plane of each layer corresponding height, and its one end is connected with the beams and slabs of agent structure, and the other end is connected with fender post by waist rail; Described soldier pile becomes a part for the permanent support system in underground under the connection of described overhanging support.
2. a kind of basement floor according to claim 1 and the cooperative permanent support system of soldier pile, is characterized in that: described soldier pile adopts concrete drilling bored concrete pile, underground space structure at least one deck of described agent structure.
3. a kind of basement floor according to claim 1 and the cooperative permanent support system of soldier pile, it is characterized in that: each layer beam slab of described waist rail and agent structure is positioned at same plane, described waist rail is connected with soldier pile by built-in fitting, and described waist rail is reinforced concrete structure.
4. a kind of basement floor according to claim 1 and the cooperative permanent support system of soldier pile, is characterized in that: the overhanging support of described Base isolation system is that plain concrete supports.
5. a kind of basement floor according to claim 1 and the cooperative permanent support system of soldier pile, is characterized in that: the upper surface of the overhanging support of described Base isolation system flushes with raft plate surface.
6. a kind of basement floor according to claim 1 and the cooperative permanent support system of soldier pile, it is characterized in that: the overhanging support of described Base isolation system comprises the thick plain concrete cushion layer of 200mm bottom it, and the rubble that on it, grating is good, middle layer of sand.
7. a kind of basement floor according to claim 1 and the cooperative permanent support system of soldier pile, is characterized in that: described agent structure is overhanging is supported for reinforced concrete support.
8. a kind of basement floor according to claim 1 and the cooperative permanent support system of soldier pile, is characterized in that: the overhanging support of described agent structure is connected by the beams and slabs of reserved steel bar with the agent structure of corresponding height.
9. a kind of basement floor according to claim 1 and the cooperative permanent support system of soldier pile, is characterized in that: between described outer wall of basement and soldier pile, be filled with the backfill soil body.
10. a kind of basement floor according to claim 1 and the cooperative permanent support system of soldier pile, is characterized in that: described outer wall of basement is provided with insulation water-proof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163461.5A CN104818728A (en) | 2015-04-08 | 2015-04-08 | Permanent supporting system with basement floor and supporting piles capable of working together |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163461.5A CN104818728A (en) | 2015-04-08 | 2015-04-08 | Permanent supporting system with basement floor and supporting piles capable of working together |
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| CN104818728A true CN104818728A (en) | 2015-08-05 |
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| CN201510163461.5A Pending CN104818728A (en) | 2015-04-08 | 2015-04-08 | Permanent supporting system with basement floor and supporting piles capable of working together |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735325A (en) * | 2016-04-20 | 2016-07-06 | 山东大学 | Intensified permanent support assembly type basement structure system and construction method |
| CN105735246A (en) * | 2016-04-12 | 2016-07-06 | 中铁建大桥工程局集团第四工程有限公司 | Underground building exterior wall and envelop structure and construction method thereof |
| CN105804090A (en) * | 2016-04-15 | 2016-07-27 | 肖锐 | Indoor piling wall support structure and construction method therefor |
| CN112523578A (en) * | 2020-12-09 | 2021-03-19 | 北京建筑大学 | Underground structure antidetonation toughness structure system |
| CN112576089A (en) * | 2020-12-09 | 2021-03-30 | 北京建筑大学 | Additional friction plate supported underground structure shock absorption control system |
| CN114232639A (en) * | 2021-12-10 | 2022-03-25 | 中国一冶集团有限公司 | Construction method for dismantling deep foundation pit support |
| CN115354881A (en) * | 2022-08-12 | 2022-11-18 | 广州市鲁班建筑科技集团股份有限公司 | Method for dismounting support and integrally fixing after integrally moving gun building |
| CN116043910A (en) * | 2022-12-12 | 2023-05-02 | 中国建筑第四工程局有限公司 | Construction method for sharing supporting piles and connecting multiple layers of basement in staged construction |
| WO2023178967A1 (en) * | 2022-07-25 | 2023-09-28 | 中建三局绿色产业投资有限公司 | Buttress-column-type pile-wall integrated structure system |
| CN118531838A (en) * | 2024-07-23 | 2024-08-23 | 山东大学 | Underground peripheral structure of soil-rock dual-environment stable rock mass and construction method |
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| CN102966108A (en) * | 2012-11-23 | 2013-03-13 | 中铁四局集团建筑工程有限公司 | Construction method of deep foundation pit close to building and adopting underground structure as internal support |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735246A (en) * | 2016-04-12 | 2016-07-06 | 中铁建大桥工程局集团第四工程有限公司 | Underground building exterior wall and envelop structure and construction method thereof |
| CN105804090A (en) * | 2016-04-15 | 2016-07-27 | 肖锐 | Indoor piling wall support structure and construction method therefor |
| CN105804090B (en) * | 2016-04-15 | 2017-10-27 | 江西建工第二建筑有限责任公司 | A kind of indoor piling wall supporting construction and its construction method |
| CN105735325A (en) * | 2016-04-20 | 2016-07-06 | 山东大学 | Intensified permanent support assembly type basement structure system and construction method |
| CN105735325B (en) * | 2016-04-20 | 2018-01-23 | 山东大学 | A kind of intensive permanent support assembled basement structure system and construction method |
| CN112576089A (en) * | 2020-12-09 | 2021-03-30 | 北京建筑大学 | Additional friction plate supported underground structure shock absorption control system |
| CN112523578A (en) * | 2020-12-09 | 2021-03-19 | 北京建筑大学 | Underground structure antidetonation toughness structure system |
| CN114232639A (en) * | 2021-12-10 | 2022-03-25 | 中国一冶集团有限公司 | Construction method for dismantling deep foundation pit support |
| CN114232639B (en) * | 2021-12-10 | 2023-08-25 | 中国一冶集团有限公司 | Construction method for post-dismantling of deep foundation pit support |
| WO2023178967A1 (en) * | 2022-07-25 | 2023-09-28 | 中建三局绿色产业投资有限公司 | Buttress-column-type pile-wall integrated structure system |
| CN115354881A (en) * | 2022-08-12 | 2022-11-18 | 广州市鲁班建筑科技集团股份有限公司 | Method for dismounting support and integrally fixing after integrally moving gun building |
| CN115354881B (en) * | 2022-08-12 | 2023-10-31 | 广州市鲁班建筑科技集团股份有限公司 | Method for removing support and integrally fixing after overall movement of turret building |
| CN116043910A (en) * | 2022-12-12 | 2023-05-02 | 中国建筑第四工程局有限公司 | Construction method for sharing supporting piles and connecting multiple layers of basement in staged construction |
| CN118531838A (en) * | 2024-07-23 | 2024-08-23 | 山东大学 | Underground peripheral structure of soil-rock dual-environment stable rock mass and construction method |
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Application publication date: 20150805 |