CN109235456A - A kind of foundation pit enclosure structure and construction method - Google Patents
A kind of foundation pit enclosure structure and construction method Download PDFInfo
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- CN109235456A CN109235456A CN201811387510.3A CN201811387510A CN109235456A CN 109235456 A CN109235456 A CN 109235456A CN 201811387510 A CN201811387510 A CN 201811387510A CN 109235456 A CN109235456 A CN 109235456A
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- pipe
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- pile
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a kind of foundation pit enclosure structure and construction methods, foundation pit enclosure structure includes pipe curtain steel-pipe pile system, ground temperature exchange system and crown beam, wherein crown beam is cast in the top of pipe curtain steel-pipe pile system, and ground temperature exchange system is arranged in pipe curtain steel-pipe pile system and crown beam.Pipe curtain steel-pipe pile system is made of steel-pipe pile and steel sheet pile, steel-pipe pile is identical with the setting depth of steel sheet pile, ground temperature exchange system is made of water inlet manifold, outfall sewer, several water inlet pipes, several exit branch and pumping system, construction method are as follows: Step 1: the formulation of construction technology；Step 2: preparation of construction；Step 3: Specific construction；The utility model has the advantages that increasing deep pit monitor performance, water proof earth-retaining effect is good, and material utilization amount saves, and speed of application is fast, and rigidity is big, and safety is good, and environmental protection and energy saving benefit is prominent, applied widely.
Description
Technical field
The present invention relates to a kind of building enclosure and construction method, in particular to a kind of foundation pit enclosure structure and construction method.
Background technique
Currently, the reasonable selection of foundation pit enclosure structure, is the primary work of Foundation Pit Support Design, should according to geological conditions,
The characteristics of requirement of surrounding enviroment and different support forms, cost etc. are comprehensive to be determined.General geological conditions is preferable, surrounding enviroment are wanted
When asking looser, flexible support, such as soil nail wall can be used；When ambient enviroment requires high, more rigid supporting should be used
Form is displaced with controlled level, such as campshed or diaphram wall.Currently used campshed or diaphram wall form mainly have
Cast-in-situ bored pile+cement mixing method sealing, armored concrete diaphram wall, steel sheet pile, SMW engineering method stake etc..Wherein, it drills
Bored concrete pile+cement mixing method sealing, armored concrete diaphram wall material be mainly armored concrete, consumptive material, energy consumption
More, cost is high；Lap position between steel sheet pile is unable to satisfy stringenter water proof requirement, the steel sheet pile when excavation of foundation pit is deeper
Often leak is serious；For the stake of SMW engineering method when excavation of foundation pit is deeper, cement earth pile stress cracking may cause water proof failure, and water
Soil not can be recycled, and cost is still higher.
Foundation pit enclosure structure is largely a provisional engineering, and all uses of engineering are completed after foundation pit backfill
How value makes full use of building enclosure, be the key that at present urgently to be resolved by the provisional permanent effect of engineering performance
Problem.
Summary of the invention
The purpose of the present invention is to solve how by the provisional permanent effect of engineering performance, makes full use of and go along with sb. to guard him
The problem of structure and a kind of foundation pit enclosure structure and construction method provided.
Foundation pit enclosure structure provided by the invention includes pipe curtain steel-pipe pile system, ground temperature exchange system and crown beam, wherein
Crown beam is cast in the top of pipe curtain steel-pipe pile system, and ground temperature exchange system is arranged in pipe curtain steel-pipe pile system and crown beam.
Pipe curtain steel-pipe pile system is made of steel-pipe pile and steel sheet pile, and steel-pipe pile is identical with the setting depth of steel sheet pile, steel
The bottom of tubular pole is provided with wedge angle, and the diameter of steel-pipe pile is 2m, and steel sheet pile is AZ26 shape steel plate.
Ground temperature exchange system is by water inlet manifold, outfall sewer, several water inlet pipes, several exit branch and pumping system
Composition, wherein the connection of several water inlet pipes is on water inlet manifold and is plugged in steel-pipe pile, several exit branch connections are being discharged
It is also plugged in steel-pipe pile on general pipeline, the setting depth of exit branch is lower than the setting depth of water inlet pipe, water inlet manifold and goes out
The paragraph that supply mains is located at pipe curtain steel-pipe pile system is embedded in crown beam, and pumping system is located on water inlet manifold, water inlet manifold and
One end of outfall sewer with need cool down or heat up building be connected, water inlet manifold, outfall sewer, several water inlet pipes and
Several exit branch are PE pipe.
Pumping system is made of filter and water pump, and water pump is Vertical Heat water pump, and water pump is connected with water inlet manifold, mistake
Filter is located at the junction of water pump and water inlet manifold.
The construction method of foundation pit enclosure structure provided by the invention, method are as described below:
Step 1: the formulation of construction technology, Specific construction technique is as follows:
Preparation of construction → measurement net review and construction baseline arrangement → pile transport → immersed tube, the mechanical stake machine of hydraulic or hammering are in place
→ lifting, staking out → measurement and positioning → vibration, hammering or hydraulic pile sinking → pre-buried water inlet manifold, outfall sewer, water inlet pipe and
When exit branch → formwork pours crown beam → construct more than positive negative zero, the cooling of water inlet manifold and outfall sewer and building or
Heating device is connected, and pumping system is arranged on water inlet manifold, pumping system includes filter and water pump；
Step 2: preparation of construction:
1), mechanical to prepare: with reliable performance, comply with standard, the construction machinery of A wide selection of colours and designs and equipment, done before construction
The maintenance of good mechanical equipment, test-run a machine work, it is ensured that all go well operation in construction period, the mechanical equipment of preparation include: immersed tube,
The mechanical stake machine of hydraulic or hammering；Measuring instrument；Filter and water pump in pumping system；
2), material prepares: the material of preparation has: steel-pipe pile；Steel sheet pile；Concrete；Reinforcing bar；The PE of different model is managed, PE
Pipe includes: water inlet manifold, outfall sewer, water inlet pipe and exit branch；Coating steel pipe and template；
3) building waste, house refuse, weeds, tree root and the cultivated plant soil of earth's surface, Farm Planning: are removed；Smooth location is extremely
Designed elevation determines the sequence of construction of reasonable according to the requirement of design document and construction organization plan；
Step 3: construction method, concrete construction method is as follows:
1), the construction of steel-pipe pile and steel sheet pile and pre-buried water inlet manifold, outfall sewer, water inlet pipe and exit branch, tool
Body is as follows:
1., stake machine enter scene, according to designing pile length, carry out equipment assembling；
2., stake machine it is in place, stake machine moves at pre- piling position, it is ensured that pile position deviation≤50mm, perpendicularity deviation≤0.5%；
3., vibration, hammering or hydraulic steel pipe stake and steel sheet pile；
4., pre-buried water inlet manifold, outfall sewer, water inlet pipe and exit branch, water is filled in steel-pipe pile first, then
Water inlet pipe and exit branch are inserted into steel-pipe pile, the setting depth of exit branch is lower than the setting depth of water inlet pipe, into
The top of water branch pipe is connected with the water inlet manifold in crown beam, and the top of exit branch is connected with the outfall sewer in crown beam；
5., formwork pour crown beam；
2) when, constructing more than positive negative zero, water inlet manifold and outfall sewer are connected with the cooling of building or heating device,
Pumping system is assembled on water inlet manifold, pumping system includes filter and water pump.
Stake machine is D128 diesel oil hammer stake machine, diesel hammer upper piston weight: 12800Kg；The every hammer blow energy of diesel hammer:
426500Nm；Diesel hammer cycle: 36-45i/min；Diesel hammer maximum explosive force: 3600KN.
Water pump is Vertical Heat water pump, the flow of water pump is 100 cubic metres/per hour, and 30 meters of the lift of water pump, the function of water pump
15 kilowatts of rate, the material of performance of over current component of water pump is 316 stainless steels, and water pump is driven by variable-frequency motor, heat-exchanger pump, filter and frequency conversion
Motor is the assembling of existing equipment, therefore concrete model and specification are not repeated.
Beneficial effects of the present invention:
Technical solution provided by the invention can combine pattern foundation pit supporting structure with using underground shallow layer ground temperature, respectively using the two
The advantages of.The bending resistance of building enclosure can be improved in pipe curtain steel-pipe pile, increases deep pit monitor performance, and water proof earth-retaining effect is good,
Material utilization amount saves, and speed of application is fast, and rigidity is big, and safety is good, and environmental protection and energy saving benefit is prominent, applied widely.Ground temperature exchange system
System can efficiently use underground shallow layer ground temperature energy, play energy-saving and emission-reduction purpose.The present invention is that pipe curtain steel-pipe pile is pushed to enclose in foundation pit
Application in protection structure has played effect outstanding, and rationally utilizes underground shallow layer ground temperature energy, can create considerable economic benefit
And social benefit.Ground temperature exchange system, water storage device when can also be as rainfall are contributed for sponge city, are rained
It is catchmented when big by pipe curtain steel-pipe pile, reduces the discharge to urban discharging pipeline, can be taken out from pipe curtain steel pipe when becoming a fine day
Water carries out road cleaning, pours the effects of flowers, plants and trees.
Detailed description of the invention
Fig. 1 is building enclosure overall structure diagram of the present invention.
Fig. 2 is construction method flow diagram of the present invention.
1, crown beam 2, steel-pipe pile 3, steel sheet pile 4, water inlet manifold 5, outfall sewer 6, water inlet pipe 7, exit branch
8, pumping system 9, building.
Specific embodiment
It please refers to shown in Fig. 1 and Fig. 2:
Foundation pit enclosure structure provided by the invention includes pipe curtain steel-pipe pile system, ground temperature exchange system and crown beam 1, wherein
Crown beam 1 is cast in the top of pipe curtain steel-pipe pile system, and ground temperature exchange system is arranged in pipe curtain steel-pipe pile system and crown beam 1.
Pipe curtain steel-pipe pile system is made of steel-pipe pile 2 and steel sheet pile 3, the setting depth phase of steel-pipe pile 2 and steel sheet pile 3
Together, the bottom of steel-pipe pile 2 is provided with wedge angle, and the diameter of steel-pipe pile 2 is 2m, and steel sheet pile 3 is AZ26 shape steel plate.
Ground temperature exchange system is by water inlet manifold 4, outfall sewer 5, several water inlet pipes 6, several exit branch 7 and pumping
System 8 forms, wherein the connection of several water inlet pipes 6 is on water inlet manifold 4 and is plugged in steel-pipe pile 2, several exit branch 7 connect
To lead to and is also plugged in steel-pipe pile 2 on outfall sewer 5, the setting depth of exit branch 7 is lower than the setting depth of water inlet pipe 6,
The paragraph that water inlet manifold 4 and outfall sewer 5 are located at pipe curtain steel-pipe pile system is embedded in crown beam 1, and pumping system 8 is located at total into water
On pipe 4, one end of water inlet manifold 4 and outfall sewer 5 is connected with the building 9 for cooling down or heating up is needed, and water inlet manifold 4 goes out
Supply mains 5, several water inlet pipes 6 and several exit branch 7 are PE pipe.
Pumping system 8 is made of filter and water pump, and water pump is Vertical Heat water pump, and water pump is connected with water inlet manifold 4,
Filter is located at the junction of water pump Yu water inlet manifold 4.
The construction method of foundation pit enclosure structure provided by the invention, method are as described below:
Step 1: the formulation of construction technology, Specific construction technique is as follows:
Preparation of construction → measurement net review and construction baseline arrangement → pile transport → immersed tube, the mechanical stake machine of hydraulic or hammering are in place
→ lifting, staking out → measurement and positioning → vibration, hammering or hydraulic pile sinking → pre-buried water inlet manifold 4, outfall sewer 5, water inlet pipe 6
When pouring crown beam 1 → construct more than positive negative zero with 7 → formwork of exit branch, water inlet manifold 4 and outfall sewer 5 and building 9
Cooling or heating device be connected, on water inlet manifold 4 be arranged pumping system 8, pumping system 8 include filter and water pump；
Step 2: preparation of construction:
1), mechanical to prepare: with reliable performance, comply with standard, the construction machinery of A wide selection of colours and designs and equipment, done before construction
The maintenance of good mechanical equipment, test-run a machine work, it is ensured that all go well operation in construction period, the mechanical equipment of preparation include: immersed tube,
The mechanical stake machine of hydraulic or hammering；Measuring instrument；Filter and water pump in pumping system 8；
2), material prepares: the material of preparation has: steel-pipe pile 2；Steel sheet pile 3；Concrete；Reinforcing bar；The PE of different model is managed,
PE pipe includes: water inlet manifold 4, outfall sewer 5, water inlet pipe 6 and exit branch 7；Coating steel pipe and template；
3) building waste, house refuse, weeds, tree root and the cultivated plant soil of earth's surface, Farm Planning: are removed；Smooth location is extremely
Designed elevation determines the sequence of construction of reasonable according to the requirement of design document and construction organization plan；
Step 3: construction method, concrete construction method is as follows:
1), the construction of steel-pipe pile 2 and steel sheet pile 3 and pre-buried water inlet manifold 4, outfall sewer 5, water inlet pipe 6 and water outlet branch
Pipe 7, specific as follows:
1., stake machine enter scene, according to designing pile length, carry out equipment assembling；
2., stake machine it is in place, stake machine moves at pre- piling position, it is ensured that pile position deviation≤50mm, perpendicularity deviation≤0.5%；
3., vibration, hammering or hydraulic steel pipe stake 2 and steel sheet pile 3；
4., pre-buried water inlet manifold 4, outfall sewer 5, water inlet pipe 6 and exit branch 7, filled in steel-pipe pile 2 first
Then water is inserted into water inlet pipe 6 and exit branch 7 in steel-pipe pile 2, the setting depth of exit branch 7 is lower than water inlet pipe 6
Depth is set, and the top of water inlet pipe 6 is connected with the water inlet manifold 4 in crown beam 1, in the top of exit branch 7 and crown beam 1
Outfall sewer 5 is connected；
5., formwork pour crown beam 1；
2) when, constructing more than positive negative zero, the cooling or heating device phase of water inlet manifold 4 and outfall sewer 5 and building 9
Even, pumping system 8 is assembled on water inlet manifold 4, pumping system 8 includes filter and water pump.
Stake machine is D128 diesel oil hammer stake machine, diesel hammer upper piston weight: 12800Kg；The every hammer blow energy of diesel hammer:
426500Nm；Diesel hammer cycle: 36-45i/min；Diesel hammer maximum explosive force: 3600KN.
Water pump is Vertical Heat water pump, the flow of water pump is 100 cubic metres/per hour, and 30 meters of the lift of water pump, the function of water pump
15 kilowatts of rate, the material of performance of over current component of water pump is 316 stainless steels, and water pump is driven by variable-frequency motor, heat-exchanger pump, filter and frequency conversion
Motor is the assembling of existing equipment, therefore concrete model and specification are not repeated.
Claims (7)
1. a kind of foundation pit enclosure structure, it is characterised in that: it include pipe curtain steel-pipe pile system, ground temperature exchange system and crown beam,
Middle crown beam is cast in the top of pipe curtain steel-pipe pile system, and ground temperature exchange system is arranged in pipe curtain steel-pipe pile system and crown beam.
2. a kind of foundation pit enclosure structure according to claim 1, it is characterised in that: the pipe curtain steel-pipe pile system be by
Steel-pipe pile and steel sheet pile composition, steel-pipe pile is identical with the setting depth of steel sheet pile, and the bottom of steel-pipe pile is provided with wedge angle, steel-pipe pile
Diameter be 2m, steel sheet pile be AZ26 shape steel plate.
3. a kind of foundation pit enclosure structure according to claim 1 or 2, it is characterised in that: the ground temperature exchange system is
It is made of water inlet manifold, outfall sewer, several water inlet pipes, several exit branch and pumping system, wherein several water inlet pipes
Connection is on water inlet manifold and is plugged in steel-pipe pile, and several exit branch connections are also plugged in steel-pipe pile on outfall sewer
Interior, the setting depth of exit branch is lower than the setting depth of water inlet pipe, and water inlet manifold and outfall sewer are located at pipe curtain steel-pipe pile
The paragraph of system is embedded in crown beam, and pumping system is located on water inlet manifold, one end and needs of water inlet manifold and outfall sewer
The building of cooling or heating is connected, and water inlet manifold, outfall sewer, several water inlet pipes and several exit branch are PE
Pipe.
4. a kind of foundation pit enclosure structure according to claim 3, it is characterised in that: the pumping system is by filter
It is formed with water pump, water pump is Vertical Heat water pump, and water pump is connected with water inlet manifold, and filter is located at the company of water pump and water inlet manifold
Meet place.
5. a kind of construction method of foundation pit enclosure structure, it is characterised in that: its method is as described below:
Step 1: the formulation of construction technology, Specific construction technique is as follows:
Preparation of construction → measurement net review and construction baseline arrangement → pile transport → immersed tube, the mechanical stake machine of hydraulic or hammering are in place → are hung
Dress, staking out → measurement and positioning → vibration, hammering or hydraulic pile sinking → pre-buried water inlet manifold, outfall sewer, water inlet pipe and water outlet
When branch pipe → formwork pours crown beam → construct more than positive negative zero, the cooling or heating of water inlet manifold and outfall sewer and building
Equipment is connected, and pumping system is arranged on water inlet manifold, pumping system includes filter and water pump；
Step 2: preparation of construction:
1), mechanical to prepare: with reliable performance, comply with standard, the construction machinery of A wide selection of colours and designs and equipment, machine is carried out before construction
The maintenance of tool equipment, test-run a machine work, it is ensured that all go well operation in construction period, the mechanical equipment of preparation includes: immersed tube, hydraulic
Or hammer mechanical stake machine；Measuring instrument；Filter and water pump in pumping system；
2), material prepares: the material of preparation has: steel-pipe pile；Steel sheet pile；Concrete；Reinforcing bar；The PE of different model is managed, PE pipe packet
It includes: water inlet manifold, outfall sewer, water inlet pipe and exit branch；Coating steel pipe and template；
3) building waste, house refuse, weeds, tree root and the cultivated plant soil of earth's surface, Farm Planning: are removed；Smooth location extremely designs
Absolute altitude determines the sequence of construction of reasonable according to the requirement of design document and construction organization plan；
Step 3: construction method, concrete construction method is as follows:
1), the construction of steel-pipe pile and steel sheet pile and pre-buried water inlet manifold, outfall sewer, water inlet pipe and exit branch, specifically such as
Under:
1., stake machine enter scene, according to designing pile length, carry out equipment assembling；
2., stake machine it is in place, stake machine moves at pre- piling position, it is ensured that pile position deviation≤50mm, perpendicularity deviation≤0.5%；
3., vibration, hammering or hydraulic steel pipe stake and steel sheet pile；
4., pre-buried water inlet manifold, outfall sewer, water inlet pipe and exit branch, water is filled in steel-pipe pile first, then in steel
Insertion water inlet pipe and exit branch in tubular pole, the setting depth of exit branch are lower than the setting depth of water inlet pipe, water inlet branch
The top of pipe is connected with the water inlet manifold in crown beam, and the top of exit branch is connected with the outfall sewer in crown beam；
5., formwork pour crown beam；
2) when, constructing more than positive negative zero, water inlet manifold and outfall sewer are connected with the cooling of building or heating device, into
Pumping system is assembled on supply mains, pumping system includes filter and water pump.
6. a kind of construction method of foundation pit enclosure structure according to claim 5, it is characterised in that: the stake machine is
D128 diesel oil hammer stake machine, diesel hammer upper piston weight: 12800Kg；The every hammer blow energy of diesel hammer: 426500Nm；Diesel oil is beaten
Hit number: 36-45i/min；Diesel hammer maximum explosive force: 3600KN.
7. a kind of construction method of foundation pit enclosure structure according to claim 5, it is characterised in that: the water pump is vertical
Formula heat-exchanger pump, the flow of water pump is 100 cubic metres/per hour, and 30 meters of the lift of water pump, 15 kilowatts of the power of water pump, water pump mistake
The material of stream unit is 316 stainless steels, and water pump is driven by variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387510.3A CN109235456A (en) | 2018-11-21 | 2018-11-21 | A kind of foundation pit enclosure structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387510.3A CN109235456A (en) | 2018-11-21 | 2018-11-21 | A kind of foundation pit enclosure structure and construction method |
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| Publication Number | Publication Date |
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| CN109235456A true CN109235456A (en) | 2019-01-18 |
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ID=65075453
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075228A (en) * | 2022-05-11 | 2022-09-20 | 中铁时代建筑设计院有限公司 | Connecting device of cast-in-place pipe pile water storage system, water storage system and construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837512A (en) * | 2006-04-07 | 2006-09-27 | 上海市政工程设计研究总院 | Combined cofferdam of steel slab pile and steel pipe pile an method for manufacturing the same |
| CN108589708A (en) * | 2018-05-15 | 2018-09-28 | 中铁时代建筑设计院有限公司 | A kind of Multifunctional cast-in-situ major diameter foundation pit support pipe pile and ground temperature exchange system |
| CN209179019U (en) * | 2018-11-21 | 2019-07-30 | 海南大学 | A kind of foundation pit enclosure structure |
-
2018
- 2018-11-21 CN CN201811387510.3A patent/CN109235456A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837512A (en) * | 2006-04-07 | 2006-09-27 | 上海市政工程设计研究总院 | Combined cofferdam of steel slab pile and steel pipe pile an method for manufacturing the same |
| CN108589708A (en) * | 2018-05-15 | 2018-09-28 | 中铁时代建筑设计院有限公司 | A kind of Multifunctional cast-in-situ major diameter foundation pit support pipe pile and ground temperature exchange system |
| CN209179019U (en) * | 2018-11-21 | 2019-07-30 | 海南大学 | A kind of foundation pit enclosure structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075228A (en) * | 2022-05-11 | 2022-09-20 | 中铁时代建筑设计院有限公司 | Connecting device of cast-in-place pipe pile water storage system, water storage system and construction method |
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