CN106400782B - A kind of construction method for going along with sb. to guard him hole-drilling interlocking pile using rotary drilling rig construction foundation pit - Google Patents

A kind of construction method for going along with sb. to guard him hole-drilling interlocking pile using rotary drilling rig construction foundation pit Download PDF

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Publication number
CN106400782B
CN106400782B CN201610483010.4A CN201610483010A CN106400782B CN 106400782 B CN106400782 B CN 106400782B CN 201610483010 A CN201610483010 A CN 201610483010A CN 106400782 B CN106400782 B CN 106400782B
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China
Prior art keywords
stake
construction
concrete
hole
sequence
Prior art date
Application number
CN201610483010.4A
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Chinese (zh)
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CN106400782A (en
Inventor
李志军
郭小龙
王秋林
董小龙
董军
张荣华
雷明星
段杰文
姚远
曹光云
孔祥远
羊红艳
罗苍宁
易定达
邢永辉
张伟
孙超
宋本乐
彭炎锋
叶亮
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中铁隧道集团二处有限公司
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Priority to CN201610483010.4A priority Critical patent/CN106400782B/en
Publication of CN106400782A publication Critical patent/CN106400782A/en
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Publication of CN106400782B publication Critical patent/CN106400782B/en

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    • 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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • E02D15/06Placing concrete under water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • 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
    • E02D5/18Bulkheads or similar walls made solely of concrete in situ
    • 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
    • E02D5/38Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0004Synthetics
    • E02D2300/0018Cement used as binder
    • E02D2300/002Concrete

Abstract

It is a kind of to go along with sb. to guard him construction method described in the construction method of hole-drilling interlocking pile using rotary drilling rig construction foundation pit, including preparation of construction, embedded casing, drilling machine are in place, the processing of mechanical hole building, brush wall, borehole cleaning, steel reinforcement cage and lifting, concreting.Hole-drilling interlocking pile of the present invention has advanced steel sleeve retaining wall in the construction process using all casing drill pore-forming always, so being not necessarily to mud off, to save the expense of mud production, use and waste pulp processing, the soil of taking-up is original soil, is conducive to the civilized construction for doing building site well;This method can reduce project cost, improve speed of application, guarantee supporting construction quality conscientiously.

Description

A kind of construction method for going along with sb. to guard him hole-drilling interlocking pile using rotary drilling rig construction foundation pit

Technical field

The present invention relates to a kind of construction methods that hole-drilling interlocking pile is gone along with sb. to guard him using rotary drilling rig construction foundation pit.

Background technique

The tunnel Hong Gu east bank ring road in Nanchang City is close to Jiangxi east embankment, and embankment is Gravity Retaining Wall, and barricade bottom is for jackstone Layer.Former foundation pit enclosure structure is the stake of SMW engineering method, and being influenced mixing pile by barricade bottom jackstone can not construct to rock stratum, and H profile steel It can not be inserted into designed elevation, foundation pit enclosure structure is unable to satisfy sealing and stress problem.

Summary of the invention

The purpose of the present invention is provide a kind of utilization rotary drilling rig construction foundation pit for prior art deficiency and actual needs Go along with sb. to guard him the construction method of hole-drilling interlocking pile.

Construction method technical solution of the present invention is:

850@600mmSMW engineering method stake of ring road foundation pit enclosure φ is improved to the hole-drilling interlocking pile of diameter 1000mm, the brill Hole interlocking pile is divided into a sequence stake i.e. A type stake and two sequence stake Type B stakes, and a sequence stake and two sequence stake elevation of bottom are the same as SMW engineering method stake bottom Absolute altitude;The concrete of two sequence stakes is fused together in insertion occlusive state and forms a continuous whole piling structure;One Sequence stake, that is, A type stake stake spacing 1500mm makees plain stake using underwater casting plastic concrete;Two sequence stakes, that is, Type B stake is underwater C30P8 Drill deposited reinforced concrete pile, 250mm is engaged with a sequence stake, stake spacing 1500mm, steel reinforcement cage elevation of bottom is the same as SMW engineering method stake H profile steel elevation of bottom.

The construction method step are as follows:

(1) preparation of construction

According to stake bit plan and live datum mark, measuring stake position and visible marking is squeezed at the construction field (site), it is ensured that stake position Unwrapping wire is accurate, and protects to datum mark;

(2) casing is buried

Casing internal diameter is 0.2m bigger than bore diameter, excavates stake holes to casing bottom, according to stake holes centralized positioning casing, casing 1.5m below the water level located underground of bottom, casing rise out level of ground water 1.5m~2.0m, and shield cartridge storing mud is higher by underground Water level 0.5m or more;

(3) drilling machine is in place

When rotary drilling rig is in place, held stationary, not run-off the straight displacement, to accurately control drilling depth, on the rack or The scale of control is made on machine pipe, to be observed, to record in construction.

(4) mechanical hole building

The specific gravity and sand factor that slurry coat method is controlled when rotary drilling rig pore-forming, undergauge or collapse hole, rotary digging when preventing from creeping into The dregs of drilling machine pore-forming is transported to interim spoir hole using short vehicle of refuting, and occlusion pile driving construction is one using the construction of stake method, every 9 pile is jumped Construction circulation, A type stake, that is, plastic concrete element stake of first constructing, closes on Type B stake i.e. through constructing again when initial set in 7~9 hours when the stake of A type Reinforced concrete pile;

(5) brush wall, borehole cleaning

A sequence stake plastic concrete is cut when rotary drilling rig two sequence stake of construction, mudcake is attached to cutting face and causes in order to prevent Seam percolating water carries out brush wall using crane suspention drilled pile brush wall device, borehole cleaning is carried out after the completion of brush wall;

After getting into predetermined depth, slurry is changed using sand suction pump borehole cleaning, away from the mud balance 1.15g/m at bottom hole 0.5m3, for Sandy soils, 1.15~1.20g/m of specific gravity of hole bottom slurry after borehole cleaning3, the bottom hole sediment thickness after borehole cleaning is not more than 50mm, filling Infuse repetition measurement sediment thickness before underwater concrete, borehole cleaning again when sediment is more than regulation;

(6) steel reinforcement cage processing and lifting

Steel reinforcement cage complete the process it is qualified by inspection after, utilize whole of crane or segmental hoisting steel reinforcement cage to stake holes;

(7) concreting

Concreting uses tremie method concrete placed under water, and timely measured hole inner concrete face height carries out conduit Promotion and dismounting, control the buried depth of conduit in 2~6m.

A) plastic concrete pours

Before use, checking whether its slump and impression quality meet the requirements, per car concrete takes plastic concrete One group of test specimen monitors its retarding time and slump-loss situation, until the B stake of this two sides is fully completed;

B) normal concrete pours

Rate of flooding suitably slows down when concrete surface is close to steel reinforcement cage bottom end, when concrete enters 2~3m of steel reinforcement cage bottom end Afterwards, conduit, which is promoted, slowly, steadily to avoid discharging from impacting excessive or hook strip steel reinforcement cage, to prevent rising of steel cage.

Beneficial effects of the present invention: hole-drilling interlocking pile uses all casing drill pore-forming, in the construction process, has always advanced Steel sleeve retaining wall, so mud off is not necessarily to, to save the expense of mud production, use and waste pulp processing, the soil of taking-up For original soil, be conducive to the civilized construction for doing building site well;This method can reduce project cost, improve speed of application, guarantee branch conscientiously Protection structure quality.

Detailed description of the invention

Fig. 1 is the step schematic diagram of construction method of the present invention;

In figure: A is A type stake, that is, plastic concrete element stake;B is Type B stake, that is, reinforced concrete pile.

Specific embodiment

As can be seen from FIG. 1, occlusion pile driving construction is a construction circulation, A type of first constructing using the construction of stake method, every 9 pile is jumped Stake (stake of plastic concrete element), (about 7~9 hours) construct again when A type stake initial set closes on Type B stake (reinforced concrete pile), applies Work sequence: A1 → A3 → A5 → A2 → A4 → B1 → B2 → B3 → B4.

Construction method step of the present invention are as follows:

(1) preparation of construction

According to stake bit plan and live datum mark, measuring stake position and visible marking is squeezed at the construction field (site), it is ensured that stake position Unwrapping wire is accurate, and protects to datum mark;

(2) casing is buried

Casing internal diameter is 0.2m bigger than bore diameter, excavates stake holes to casing bottom, according to stake holes centralized positioning casing, casing 1.5m below the water level located underground of bottom, casing rise out level of ground water 1.5m~2.0m, and shield cartridge storing mud is higher by underground Water level 0.5m or more;

(3) drilling machine is in place

When rotary drilling rig is in place, held stationary, not run-off the straight displacement, to accurately control drilling depth, on the rack or The scale of control is made on machine pipe, to be observed, to record in construction.

(4) mechanical hole building

The specific gravity and sand factor that slurry coat method is controlled when rotary drilling rig pore-forming, undergauge or collapse hole, rotary digging when preventing from creeping into The dregs of drilling machine pore-forming is transported to interim spoir hole using short vehicle of refuting, and occlusion pile driving construction is one using the construction of stake method, every 9 pile is jumped Construction circulation, A type stake, that is, plastic concrete element stake of first constructing, closes on Type B stake i.e. through constructing again when initial set in 7~9 hours when the stake of A type Reinforced concrete pile;

(5) brush wall, borehole cleaning

A sequence stake plastic concrete is cut when rotary drilling rig two sequence stake of construction, mudcake is attached to cutting face and causes in order to prevent Seam percolating water carries out brush wall using crane suspention drilled pile brush wall device, borehole cleaning is carried out after the completion of brush wall;

After getting into predetermined depth, slurry is changed using sand suction pump borehole cleaning, away from the mud balance 1.15g/m at bottom hole 0.5m3, for Sandy soils, 1.15~1.20g/m of specific gravity of hole bottom slurry after borehole cleaning3, the bottom hole sediment thickness after borehole cleaning is not more than 50mm, filling Infuse repetition measurement sediment thickness before underwater concrete, borehole cleaning again when sediment is more than regulation;

(6) steel reinforcement cage processing and lifting

Steel reinforcement cage complete the process it is qualified by inspection after, utilize whole of crane or segmental hoisting steel reinforcement cage to stake holes;

(7) concreting

Concreting uses tremie method concrete placed under water, and timely measured hole inner concrete face height carries out conduit Promotion and dismounting, control the buried depth of conduit in 2~6m.

A) plastic concrete pours

Before use, checking whether its slump and impression quality meet the requirements, per car concrete takes plastic concrete One group of test specimen monitors its retarding time and slump-loss situation, until the B stake of this two sides is fully completed;

B) normal concrete pours

Rate of flooding suitably slows down when concrete surface is close to steel reinforcement cage bottom end, when concrete enters 2~3m of steel reinforcement cage bottom end Afterwards, conduit, which is promoted, slowly, steadily to avoid discharging from impacting excessive or hook strip steel reinforcement cage, to prevent rising of steel cage.

Claims (1)

1. a kind of construction method that hole-drilling interlocking pile is gone along with sb. to guard him using rotary drilling rig construction foundation pit, it is characterized in that:
850@600mmSMW engineering method stake of ring road foundation pit enclosure φ is improved to the hole-drilling interlocking pile of diameter 1000mm, the drilling is stung It closes stake and is divided into a sequence stake i.e. A type stake and two sequence stake Type B stakes, a sequence stake and two sequence stake elevation of bottom are the same as SMW engineering method stake elevation of bottom; The concrete of two sequence stakes is fused together in insertion occlusive state and forms a continuous whole piling structure;One sequence stake is A type stake stake spacing 1500mm makees plain stake using underwater casting plastic concrete;Two sequence stakes, that is, Type B stake is underwater C30P8 drilling steel Reinforced concrete bored concrete pile is engaged 250mm with a sequence stake, and stake spacing 1500mm, steel reinforcement cage elevation of bottom is the same as SMW engineering method stake H profile steel Elevation of bottom;
The construction method step are as follows:
(1) preparation of construction
According to stake bit plan and live datum mark, measuring stake position and visible marking is squeezed at the construction field (site), keep stake position unwrapping wire quasi- Really, and to datum mark it protects;
(2) casing is buried
Casing internal diameter is 0.2m bigger than bore diameter, excavates stake holes to casing bottom, according to stake holes centralized positioning casing, the bottom of casing 1.5m below water level located underground, casing rise out level of ground water 1.5m~2.0m, and shield cartridge storing mud is higher by level of ground water 0.5m or more;
(3) drilling machine is in place
When rotary drilling rig is in place, held stationary, not run-off the straight displacement, to accurately control drilling depth, on the rack or machine pipe On make the scale of control, to be observed, to record in construction;
(4) mechanical hole building
The specific gravity and sand factor that slurry coat method is controlled when rotary drilling rig pore-forming, undergauge or collapse hole, rotary drilling rig when preventing from creeping into The dregs of pore-forming is transported to interim spoir hole using short vehicle of refuting, and occlusion pile driving construction is a construction using the construction of stake method, every 9 pile is jumped Circulation, A type stake, that is, plastic concrete element stake of first constructing, closes on Type B stake i.e. reinforcing bar through constructing again when initial set in 7~9 hours when the stake of A type Concrete-pile;
(5) brush wall, borehole cleaning
A sequence stake plastic concrete is cut when rotary drilling rig two sequence stake of construction, mudcake is attached to cutting face and causes seam in order to prevent Percolating water carries out brush wall using crane suspention drilled pile brush wall device, borehole cleaning is carried out after the completion of brush wall;
After getting into predetermined depth, slurry is changed using sand suction pump borehole cleaning, is controlled away from the mud balance at bottom hole 0.5m in 1.15g/m3, right 1.15~1.20g/m of specific gravity of hole bottom slurry after sandy soils, borehole cleaning3, the bottom hole sediment thickness after borehole cleaning is not more than 50mm, Repetition measurement sediment thickness before pouring underwater concrete, borehole cleaning again when sediment is more than regulation;
(6) steel reinforcement cage processing and lifting
Steel reinforcement cage complete the process it is qualified by inspection after, utilize whole of crane or segmental hoisting steel reinforcement cage to stake holes;
(7) concreting
Concreting uses tremie method concrete placed under water, and timely measured hole inner concrete face height carries out mentioning for conduit It rises and removes, control the buried depth of conduit in 2~6m;
A) plastic concrete pours
For plastic concrete before use, checking whether its slump and impression quality meet the requirements, per car concrete takes one group Test specimen monitors its retarding time and slump-loss situation, until the B stake of this two sides is fully completed;
B) normal concrete pours
Rate of flooding suitably slows down when concrete surface is close to steel reinforcement cage bottom end, after concrete enters 2~3m of steel reinforcement cage bottom end, leads Pipe, which is promoted, slowly, steadily to avoid discharging from impacting excessive or hook strip steel reinforcement cage, to prevent rising of steel cage.
CN201610483010.4A 2016-06-28 2016-06-28 A kind of construction method for going along with sb. to guard him hole-drilling interlocking pile using rotary drilling rig construction foundation pit CN106400782B (en)

Priority Applications (1)

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CN201610483010.4A CN106400782B (en) 2016-06-28 2016-06-28 A kind of construction method for going along with sb. to guard him hole-drilling interlocking pile using rotary drilling rig construction foundation pit

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Application Number Priority Date Filing Date Title
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CN106400782B true CN106400782B (en) 2019-01-04

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CN108018849B (en) * 2017-11-25 2020-05-19 北京建材地质工程有限公司 Construction method for reinforcing soil body at shield launching and arrival end
CN107975027B (en) * 2017-11-25 2020-05-19 北京建材地质工程有限公司 Construction method for reinforcing soil body at shield launching and arrival end
CN107989032A (en) * 2017-11-28 2018-05-04 深圳市工勘岩土技术有限公司 A kind of construction method of punching interlocking pile
CN108625369A (en) * 2018-06-22 2018-10-09 中铁二局第工程有限公司 The hard patterning method construction method of interlocking pile in karst area
CN109083178A (en) * 2018-07-24 2018-12-25 中交航局第三工程有限公司 It is a kind of element interlocking pile at cut-pff wall water-stop curtain construction method
CN109610524A (en) * 2018-11-29 2019-04-12 北京地矿工程建设有限责任公司 The detection of OPT interlocking pile and course control method for use
CN109948285A (en) * 2019-03-29 2019-06-28 贵州正业工程技术投资有限公司 A kind of large size Karst depression ball crown type mechanism central excavation localization method
CN110093934A (en) * 2019-05-20 2019-08-06 中铁七局集团有限公司 The nothing for going along with sb. to guard him pile driving construction suitable for subway leads wall construction method of interlocking pile
CN110306561A (en) * 2019-07-05 2019-10-08 广州穗岩土木科技股份有限公司 A kind of foundation pit hardness construction method of interlocking pile
CN110512597A (en) * 2019-07-26 2019-11-29 广东厚普建设工程有限公司 A kind of rotary digging cast-in-place pile construction method
CN111305229A (en) * 2020-03-26 2020-06-19 中铁隧道集团二处有限公司 Construction method for constructing sectionwise deep rock drilling secant pile

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CN101328712A (en) * 2008-07-29 2008-12-24 上海市第二建筑有限公司 Construction method of interlocking pile for soft soil and soil layer with obstacle
CN103388333A (en) * 2013-07-25 2013-11-13 中铁十六局集团有限公司 Construction process for carrying out construction on interlocking pile by adopting rotary drilling rig and mud protection wall method
CN104929136A (en) * 2015-07-14 2015-09-23 上海市水利工程集团有限公司 Urban complex underground obstacle working condition occlusive pile enclosure construction method

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CN101328712A (en) * 2008-07-29 2008-12-24 上海市第二建筑有限公司 Construction method of interlocking pile for soft soil and soil layer with obstacle
CN103388333A (en) * 2013-07-25 2013-11-13 中铁十六局集团有限公司 Construction process for carrying out construction on interlocking pile by adopting rotary drilling rig and mud protection wall method
CN104929136A (en) * 2015-07-14 2015-09-23 上海市水利工程集团有限公司 Urban complex underground obstacle working condition occlusive pile enclosure construction method

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