CN107989057A - A kind of Bridge Pile Foundation Construction method - Google Patents

A kind of Bridge Pile Foundation Construction method Download PDF

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Publication number
CN107989057A
CN107989057A CN201711322798.1A CN201711322798A CN107989057A CN 107989057 A CN107989057 A CN 107989057A CN 201711322798 A CN201711322798 A CN 201711322798A CN 107989057 A CN107989057 A CN 107989057A
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construction
pile foundation
soil
concrete
preset value
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CN201711322798.1A
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Inventor
马亮
张志勇
高昆
张飞
刁川川
翟赛
安宁宁
秦运强
薛东起
方崇彬
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Priority to CN201711322798.1A priority Critical patent/CN107989057A/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/10Deep foundations
    • E02D27/12Pile foundations
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/36Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a kind of Bridge Pile Foundation Construction method, comprise the following steps:S1:Surveying and locating:Pile foundation construction setting-out is carried out using total powerstation, actual survey is carried out to construction ground, gather the soil of construction ground, experimental analysis is carried out, the content of soil is determined, according to the hardness of different depth soil, determine depth and the position of pile foundation, whole work progress is first simulated according to the data of actual survey and experimental data on computers, draws preset value, S2:Levelling of the land:Smooth to place progress using construction machinery, the debris on construction site needed after smooth is cleared up, using filling out weak soil and pounding closely knit conduct drilling machine construction platform, by drilling-machine shifter to construction platform.The present invention simulates whole work progress on computers in advance by field exploring and experiment, draws preset value, is constructed according to preset value, easy to carry out timely processing to the error in work progress, ensure that construction quality.

Description

A kind of Bridge Pile Foundation Construction method
Technical field
The present invention relates to piling Technology field, more particularly to a kind of Bridge Pile Foundation Construction method.
Background technology
Pile foundation refers to the deep foundation being made of the pile framing of stake and connection stake top, or the single pile base being connected by column with pile foundation Plinth, is widely used in bridge construction, and through retrieval, the patent document of Authorization Notice No. CN105507340B proposes one kind Bridges in Mountainous Areas pile base construction method, comprises the following steps:(1)Surveying and locating:Position the position of pile foundation;(2)Borehole:Dig out stake holes Afterwards, reaming forms reaming chamber on the rock mass of stake holes bottom;(3)Place steel reinforcement cage and expand steel reinforcement cage:Master is placed into stake holes Steel reinforcement cage, expands steel reinforcement cage expanding to place at cavity;(4)Concrete perfusion:Using conduit normal direction stake holes concrete perfusion, and make Make plummer;(5)Anchor cable is set:Drill around pile foundation, vertical anchor cable and horizontal cable be installed, and using bottom hole return slurry processes into Row slip casting, vertical anchor cable and horizontal cable are squeezed into rock mass through soil layer.The construction method is simple, and pile foundation bearing capacity is strong.
Through retrieval, the patent document of application publication number CN107012881A discloses a kind of Bridge Pile Foundation Construction method, wraps Include following steps:Step 1:Plan analysis is sling to stake position, makes plan analysis vertical, by plan analysis it is slowly vertical under It is sink to and stablizes into mud, the upper end of plan analysis is located at below the water surface at this time;Step 2:Using vibration hammer to plan analysis into Row applies shake, plan analysis is sunk to projected depth;Step 3:Opened in plan analysis using drilling machine repeated stock pulping Bore, carry out borehole cleaning behind whole hole in time:Duct is formed, the inner wall in duct is tamped;Step 4:Precast reinforced cage is first transferred, then Lower warping concrete conduit completes construction to cast concrete at the bottom in duct, is started after secondary pile hole cleaning.The present invention's is beneficial Effect:The Bridge Pile Foundation Construction method can avoid duct from being collapsed because the pressure of water is subject to, without to duct Extra reinforcing support is carried out, there is energy conservation and environmental protection, the construction method of both pile foundations is in practical application, be not easy to Whole work progress is simulated in advance, is not easy to draw preset value, if there is larger error during construction, be not easy to and Shi Faxian is simultaneously handled, and influences construction quality, therefore we have proposed a kind of Bridge Pile Foundation Construction method, for solving above-mentioned ask Topic.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of Bridge Pile Foundation Construction method.
A kind of Bridge Pile Foundation Construction method proposed by the present invention, comprises the following steps:
S1:Surveying and locating:Pile foundation construction setting-out is carried out using total powerstation, actual survey is carried out to construction ground, gathers construction ground Soil, carries out experimental analysis, determines the content of soil, according to the hardness of different depth soil, determines depth and the position of pile foundation, Whole work progress is first simulated according to the data of actual survey and experimental data on computers, draws preset value;
S2:Levelling of the land:Smooth, the debris progress on the construction site needed after smooth is carried out to place using construction machinery Cleaning, using fill out weak soil and pound it is closely knit be used as drilling machine construction platform, by drilling-machine shifter to construction platform, due to geological condition Complexity, therefore before drilling machine is in place, support pad and reinforcing are carried out to rig substructure, prevent drilling machine sinks during impact holing with Tilt;
S3:Borehole:Stake holes is dug out using the drilling machine described in S2, perforate generally puts into large scale clay, makes underflow(Relative density 1.4-1.6), the urgent head for hitting pore-creating, wanting in close observation casing in drilling process in bottom is carried out using small stroke, keeps ratio to apply Work water level is higher by 1.5-2m, and sends special messenger to check geologic change situation and mud index, according to different geological state adjustment not With the mud of index, when by erratic boulder layer, such as surface irregularity, should first launch clay or small slabstone levels up surface, then rush Drilling is hit, prevents inclined hole, collapse hole phenomenon, stake holes is completed aperture after depth, Kong Wei, aperture and gradient and is detected, draws Detect data, and contrasted with the construction simulation process described in S1, if correction data in the error range of permission, i.e., It can continue to construct, it is necessary to adjust in time if error is larger, continue to carry out pair with analogue data after the completion of adjustment Than until meeting preset value;
S4:Steel reinforcement cage enters hole:After the completion of stake holes described in S3, by reinforcing bar cage hoisting into stake holes, due to steel reinforcement cage diameter ratio It is larger, using triangle support is welded with putting more energy into and bind round in steel reinforcement cage, with the globality of stiffener basket structure, prevent steel reinforcement cage from hanging Deformed during dress, be symmetrical arranged four pieces of concrete protection cushion blocks every 2m on steel reinforcement cage, steel reinforcement cage is reinforced;
S5:Borehole cleaning:The mud property index and stake holes bottom sediment thickness of stake holes bottom described in S3 are detected, draws testing number According to being contrasted with the analogue data described in S1, meet preset value and can proceed with construction, if numerical bias is larger Words, it is necessary to handle it in time, until reaching preset value, borehole cleaning using changing slurry processes progress, with it is having purified, relative density is relatively low Mud press-in, the larger mud of relative density and suspension boring mud are swapped out outside hole, liquid level stabilizing in retaining hole, until mud in hole Untill the indices and sediment thickness of slurry meet specification and design requirement;
S6:Concrete perfusion:The perfusion of concrete is carried out using direct pipe method, in casting process, conduit planted agent often fills up Concrete, and keep conduit base opening to be embedded in all the time in the concrete poured, simultaneously balancedly casting concrete, is simultaneously slowly lifted Conduit, until terminating, during using tremie method, the maximum particle diameter of aggregate will be restricted, and concrete batching system need to have good Workability and the higher slump, first detection concrete enters the indexs such as hole temperature, air content, the slump before perfusion, draws data And contrasted with the preset value described in S1, timely processing is needed if error is larger, after the completion of processing again with preset value into Row contrast, can carry out the perfusion of concrete after meeting the requirements.
Preferably, in the S1, construction lofting positional accuracy is less than 4mm, and setting-out result is protected after the completion of setting-out.
Preferably, in the S1, using in the available nitrogen in Soil K+adsorption instrument detection soil, rapid available phosphorus, effective potassium, plant Full nitrogen, full phosphorus, full potassium, the content of organic matter, the component such as soil acidity or alkalinity and soil salt content draws accurate data.
Preferably, in the S3, hole depth is not less than default hole depth, and aperture is not less than default aperture, gradient tolerance Less than 1%.
Preferably, in the S4, the lower part of skeleton is arranged on using 2 points of liftings, the first suspension centre by crane, the second suspension centre is set In the center of skeleton.
Preferably, in the S5, stake holes bottom sediment thickness should be less than 280mm.
Preferably, in the S6,5-7min is mixed by fine aggregate, coarse aggregate and composite reinforcing fiber in concrete, so Cement, coal ash powder, miberal powder and silica flour stirring 5-7min are added afterwards, are eventually adding water, polycarboxylate water-reducer, dispersant and organic Silicone oil stirs 5-7min, that is, concrete is prepared.
Beneficial effects of the present invention:Whole work progress is simulated in advance by field exploring and experiment on computers, is obtained Go out preset value, constructed according to preset value, easy to carry out timely processing to the error in work progress, ensure that construction matter Amount.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
Embodiment
A kind of Bridge Pile Foundation Construction method is proposed in the present embodiment, is comprised the following steps:
S1:Surveying and locating:Pile foundation construction setting-out is carried out using total powerstation, actual survey is carried out to construction ground, gathers construction ground Soil, carries out experimental analysis, determines the content of soil, according to the hardness of different depth soil, determines depth and the position of pile foundation, Whole work progress is first simulated according to the data of actual survey and experimental data on computers, draws preset value;
S2:Levelling of the land:Smooth, the debris progress on the construction site needed after smooth is carried out to place using construction machinery Cleaning, using fill out weak soil and pound it is closely knit be used as drilling machine construction platform, by drilling-machine shifter to construction platform, due to geological condition Complexity, therefore before drilling machine is in place, support pad and reinforcing are carried out to rig substructure, prevent drilling machine sinks during impact holing with Tilt;
S3:Borehole:Stake holes is dug out using the drilling machine described in S2, perforate generally puts into large scale clay, makes underflow(Relative density 1.4-1.6), the urgent head for hitting pore-creating, wanting in close observation casing in drilling process in bottom is carried out using small stroke, keeps ratio to apply Work water level is higher by 1.5-2m, and sends special messenger to check geologic change situation and mud index, according to different geological state adjustment not With the mud of index, when by erratic boulder layer, such as surface irregularity, should first launch clay or small slabstone levels up surface, then rush Drilling is hit, prevents inclined hole, collapse hole phenomenon, stake holes is completed aperture after depth, Kong Wei, aperture and gradient and is detected, draws Detect data, and contrasted with the construction simulation process described in S1, if correction data in the error range of permission, i.e., It can continue to construct, it is necessary to adjust in time if error is larger, continue to carry out pair with analogue data after the completion of adjustment Than until meeting preset value;
S4:Steel reinforcement cage enters hole:After the completion of stake holes described in S3, by reinforcing bar cage hoisting into stake holes, due to steel reinforcement cage diameter ratio It is larger, using triangle support is welded with putting more energy into and bind round in steel reinforcement cage, with the globality of stiffener basket structure, prevent steel reinforcement cage from hanging Deformed during dress, be symmetrical arranged four pieces of concrete protection cushion blocks every 2m on steel reinforcement cage, steel reinforcement cage is reinforced;
S5:Borehole cleaning:The mud property index and stake holes bottom sediment thickness of stake holes bottom described in S3 are detected, draws testing number According to being contrasted with the analogue data described in S1, meet preset value and can proceed with construction, if numerical bias is larger Words, it is necessary to handle it in time, until reaching preset value, borehole cleaning using changing slurry processes progress, with it is having purified, relative density is relatively low Mud press-in, the larger mud of relative density and suspension boring mud are swapped out outside hole, liquid level stabilizing in retaining hole, until mud in hole Untill the indices and sediment thickness of slurry meet specification and design requirement;
S6:Concrete perfusion:The perfusion of concrete is carried out using direct pipe method, in casting process, conduit planted agent often fills up Concrete, and keep conduit base opening to be embedded in all the time in the concrete poured, simultaneously balancedly casting concrete, is simultaneously slowly lifted Conduit, until terminating, during using tremie method, the maximum particle diameter of aggregate will be restricted, and concrete batching system need to have good Workability and the higher slump, first detection concrete enters the indexs such as hole temperature, air content, the slump before perfusion, draws data And contrasted with the preset value described in S1, timely processing is needed if error is larger, after the completion of processing again with preset value into Row contrast, can carry out the perfusion of concrete after meeting the requirements.
In the present embodiment, in S1, construction lofting positional accuracy is less than 4mm, and setting-out result is protected after the completion of setting-out, In S1, the available nitrogen in soil, rapid available phosphorus are detected using Soil K+adsorption instrument, effective potassium, the full nitrogen in plant, full phosphorus, full potassium, is had Machine matter content, the component such as soil acidity or alkalinity and soil salt content draw accurate data, and in S3, hole depth is not less than default hole depth, Aperture is not less than default aperture, and gradient tolerance is less than in 1%, S4, is arranged on by crane using 2 points of liftings, the first suspension centre The lower part of skeleton, the second suspension centre is arranged on the center of skeleton, and in S5, stake holes bottom sediment thickness should be less than 280mm, in S6, 5-7min is mixed by fine aggregate, coarse aggregate and composite reinforcing fiber in concrete, then add cement, coal ash powder, miberal powder and Silica flour stirs 5-7min, is eventually adding water, polycarboxylate water-reducer, dispersant and organic silicone oil stirring 5-7min, that is, is prepared into To concrete, the present invention simulates whole work progress in advance by field exploring and experiment, draws preset value, root on computers Construct according to preset value, easy to carry out timely processing to the error in work progress, ensure that construction quality.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (7)

  1. A kind of 1. Bridge Pile Foundation Construction method, it is characterised in that comprise the following steps:
    S1:Surveying and locating:Pile foundation construction setting-out is carried out using total powerstation, actual survey is carried out to construction ground, gathers construction ground Soil, carries out experimental analysis, determines the content of soil, according to the hardness of different depth soil, determines depth and the position of pile foundation, Whole work progress is first simulated according to the data of actual survey and experimental data on computers, draws preset value;
    S2:Levelling of the land:Smooth, the debris progress on the construction site needed after smooth is carried out to place using construction machinery Cleaning, using fill out weak soil and pound it is closely knit be used as drilling machine construction platform, by drilling-machine shifter to construction platform, then to drilling machine bottom Seat carries out support pad and reinforcing;
    S3:Borehole:Stake holes is dug out using the drilling machine described in S2, perforate generally puts into large scale clay, makes underflow, using small punching The urgent head for hitting pore-creating, wanting in close observation casing in drilling process in Cheng Jinhang bottoms, keeps being higher by 1.5-2m than working water level, And send special messenger to check geologic change situation and mud index, the mud of different indexs is adjusted according to different geological states, when logical When crossing erratic boulder layer, such as surface irregularity, should first launch clay or small slabstone levels up surface, then percussion drilling, prevent tiltedly Hole, collapse hole phenomenon, stake holes are completed aperture after depth, Kong Wei, aperture and gradient and are detected, and draw detection data, and with S1 The construction simulation process is contrasted, if correction data is in the error range of permission, you can continues to construct, if by mistake , it is necessary to adjust in time if difference is larger, continue to be contrasted with analogue data after the completion of adjustment, until meeting preset value;
    S4:Steel reinforcement cage enters hole:After the completion of stake holes described in S3, by reinforcing bar cage hoisting into stake holes, due to steel reinforcement cage diameter ratio It is larger, using triangle support is welded with putting more energy into and bind round in steel reinforcement cage, four pieces of concretes protection cushion blocks are symmetrical arranged every 2m on steel reinforcement cage, Steel reinforcement cage is reinforced;
    S5:Borehole cleaning:The mud property index and stake holes bottom sediment thickness of stake holes bottom described in S3 are detected, draws testing number According to being contrasted with the analogue data described in S1, meet preset value and can proceed with construction, if numerical bias is larger Words, it is necessary to handle it in time, until reaching preset value, borehole cleaning using changing slurry processes progress, with it is having purified, relative density is relatively low Mud press-in, the larger mud of relative density and suspension boring mud are swapped out outside hole, liquid level stabilizing in retaining hole, until mud in hole Untill the indices and sediment thickness of slurry meet specification and design requirement;
    S6:Concrete perfusion:The perfusion of concrete is carried out using direct pipe method, in casting process, conduit planted agent often fills up Concrete, and keep conduit base opening to be embedded in all the time in the concrete poured, simultaneously balancedly casting concrete, is simultaneously slowly lifted Conduit, until terminating, during using tremie method, the maximum particle diameter of aggregate will be restricted, and concrete batching system need to have good Workability and the higher slump, first detection concrete enters the indexs such as hole temperature, air content, the slump before perfusion, draws data And contrasted with the preset value described in S1, timely processing is needed if error is larger, after the completion of processing again with preset value into Row contrast, can carry out the perfusion of concrete after meeting the requirements.
  2. A kind of 2. Bridge Pile Foundation Construction method according to claim 1, it is characterised in that in the S1, construction lofting point Position precision is less than 4mm, and setting-out result is protected after the completion of setting-out.
  3. 3. a kind of Bridge Pile Foundation Construction method according to claim 1, it is characterised in that in the S1, examined using soil Available nitrogen, rapid available phosphorus in survey instrument detection soil, effective potassium, the full nitrogen in plant, full phosphorus, full potassium, the content of organic matter, soil acid The component such as basicity and soil salt content draws accurate data.
  4. 4. a kind of Bridge Pile Foundation Construction method according to claim 1, it is characterised in that in the S3, hole depth is not less than Default hole depth, aperture are not less than default aperture, and gradient tolerance is less than 1%.
  5. 5. a kind of Bridge Pile Foundation Construction method according to claim 1, it is characterised in that in the S4, used by crane 2 points of liftings, the first suspension centre are arranged on the lower part of skeleton, and the second suspension centre is arranged on the center of skeleton.
  6. 6. a kind of Bridge Pile Foundation Construction method according to claim 1, it is characterised in that in the S5, stake holes bottom sinks Slag thickness should be less than 280mm.
  7. 7. a kind of Bridge Pile Foundation Construction method according to claim 1, it is characterised in that in the S6, concrete is by thin Gather materials, coarse aggregate and composite reinforcing fiber mixing 5-7min, then add cement, coal ash powder, miberal powder and silica flour stirring 5- 7min, is eventually adding water, polycarboxylate water-reducer, dispersant and organic silicone oil stirring 5-7min, that is, concrete is prepared.
CN201711322798.1A 2017-12-12 2017-12-12 A kind of Bridge Pile Foundation Construction method Pending CN107989057A (en)

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Publication number Priority date Publication date Assignee Title
CN109083682A (en) * 2018-08-28 2018-12-25 辽宁工程技术大学 A kind of construction method of mine working antiseepage high intensity fire dam
CN109826220A (en) * 2019-03-27 2019-05-31 华北水利水电大学 A kind of energy-saving and environment-friendly Bridge Pile Foundation Construction method
CN109826221A (en) * 2019-03-27 2019-05-31 华北水利水电大学 A kind of large bridge pile base construction method that pile bearing capacity is high
CN112281897A (en) * 2020-10-19 2021-01-29 中铁六局集团有限公司 Construction method of bridge pile foundation
CN112709268A (en) * 2020-12-25 2021-04-27 张文明 Bridge foundation reinforcing method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109083682A (en) * 2018-08-28 2018-12-25 辽宁工程技术大学 A kind of construction method of mine working antiseepage high intensity fire dam
CN109826220A (en) * 2019-03-27 2019-05-31 华北水利水电大学 A kind of energy-saving and environment-friendly Bridge Pile Foundation Construction method
CN109826221A (en) * 2019-03-27 2019-05-31 华北水利水电大学 A kind of large bridge pile base construction method that pile bearing capacity is high
CN112281897A (en) * 2020-10-19 2021-01-29 中铁六局集团有限公司 Construction method of bridge pile foundation
CN112709268A (en) * 2020-12-25 2021-04-27 张文明 Bridge foundation reinforcing method
CN112709268B (en) * 2020-12-25 2022-02-08 张文明 Bridge foundation reinforcing method

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180504