CN104863131A - Polygonal cement-soil stirring pile and formation method thereof - Google Patents

Polygonal cement-soil stirring pile and formation method thereof Download PDF

Info

Publication number
CN104863131A
CN104863131A CN201510206649.3A CN201510206649A CN104863131A CN 104863131 A CN104863131 A CN 104863131A CN 201510206649 A CN201510206649 A CN 201510206649A CN 104863131 A CN104863131 A CN 104863131A
Authority
CN
China
Prior art keywords
pile
cement mixing
polygonal
pipes
drill bit
Prior art date
Application number
CN201510206649.3A
Other languages
Chinese (zh)
Inventor
周兆弟
Original Assignee
周兆弟
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201410174656.5A priority Critical patent/CN104196016A/en
Priority to CN2014101746565 priority
Application filed by 周兆弟 filed Critical 周兆弟
Priority to CN201510206649.3A priority patent/CN104863131A/en
Publication of CN104863131A publication Critical patent/CN104863131A/en

Links

Classifications

    • 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
    • E02D5/46Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
    • 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
    • E02D5/48Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
    • 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
    • E02D5/50Piles comprising both precast concrete portions and concrete portions cast in situ

Abstract

The invention belongs to the technical field of building, relates to a polygonal cement-soil stirring pile and a formation method thereof, and solves the technical problems in the prior art that the pulling resistance is poor and the pile body strength is poor. The polygonal cement-soil stirring pile comprises a pile body formed by solidifying cement and soil, wherein the pile body is composed of multiple pile bodies attached to one another; the cross section of the pile body comprises multiple arc-shaped angles; the number of the pile bodies is not smaller than that of the arc-shaped angles; the axial leads of the multiple pile bodies are not on the same plane and are parallel to one another; the formation method comprises the following steps: multiple drill pipes and multiple spouting pipes are not distributed and arrayed on the same plane according to the axial leads, drill bits are arranged at the end parts of the drill pipes, the multiple drill pipes drill underground simultaneously, during drilling, the stirring blades of the multiple drill pipes are not on the same plane and the multiple spouting pipes spout simultaneously, when the drill pipes drill in a set depth, the drill pipes and the spouting pipes lift towards the ground simultaneously, and the spouting pipes continuously spout during the lifting process. According to the invention, the pile foundation stability is excellent, and the pulling resistance and the bearing capacity resistance are high.

Description

Polygonal cement mixing method and manufacturing process thereof

Technical field

The invention belongs to technical field of buildings, relate to a kind of cement mixing method and manufacturing process thereof, particularly relate to a kind of polygonal cement mixing method and manufacturing process thereof.

Background technology

Cement mixing method is a kind of method for reinforcing the low ground of saturated soft clay, it utilizes cement as curing compound, by special Mixing Machine, in ground depths by weak soil and curing compound action of forced stirring, utilize the series of physical chemical reaction produced between curing compound and weak soil, weak soil is hardened into have the high-quality ground of globality, water stability and some strength.But existing cement mixing method is all single-column stake, when the higher uplift resistance of needs and compressive resistance, need the aperture of boring to do large thus make the boring post of larger aperture.

The manufacturing process of existing cement mixing method comprises the following steps:

1, position of p ile machine, centering, leveling.After putting agitation pile stake position well, mobile mixing pile machine arrives and refers to fixed pile, centering, leveling level gauge leveling.

2, leading truck verticality is adjusted.Adopt transit or ceiling hammer double-direction control leading truck verticality.By design and code requirement, verticality be less than 1.0% long.

3, mixing slurries in advance.Deep mixer stirs simultaneously in advance, and slurries are put into aggregate bin before treating mud jacking by backstage mixing cement grout.Select cement grade 425# common silicate cement mixing slurries, water/binder ratio controls in 0.45 ~ 0.50 scope, is no less than 50Kg according to designing requirement every meter deep-mixed pile cement consumption.

4, stir.Start deep-mixing pile driver rotating disk, after head rotating speed to be mixed is normal, drilling rod can be made to stir along sinking limit, leading truck limit, and subsidence velocity regulates and controls by gear, and operating current should not be greater than rated value.

5, whitewashing is stirred and is promoted.After sinking to arriving projected depth, open mortar pump, send slurry to stirring-head grout outlet by pipeline, after pulp, start mixing pile machine and tensioning chain device, stir limit lifting drilling rod by designing the hoisting velocity 0.50 ~ 0.8m/min limit whitewashing determined, slurries and the soil body are are fully mixed and stirred.

6, repeat to stir.Stirring drill bit is promoted to after stake pushes up above 500mm height, and close mortar pump, repeat stirring and sink down into projected depth, subsidence velocity is undertaken by designing requirement.

7, whitewashing repeats to stir and promotes.After sinking to arriving projected depth, whitewashing repeats to stir and promotes, and is promoted to ground always.

8, stake machine displacement.Constructed after a pile, mobile stake machine, to next pile position, repeats the construction that above step carries out next pile.

As can be seen here, the construction method of existing cement mixing method is single making, and every pile is all cylindrical.

Deficiency is sent out in order to overcome prior art, people are through constantly exploring, propose various solution, as Chinese patent literature discloses a kind of one-tenth pile operation method [notification number: CN102943467A] of bidirectional stirring pile, cement mixing method is stirred by soil and cement paste and is formed, one width stirs wall and is made up of the cement mixing method of many vertical overlap joints mutually, several Soil-cement Walls overlap the longer Soil-cement Wall of formation mutually, every width Soil-cement Wall is made up of the cement mixing method that the six roots of sensation is vertical, the six roots of sensation cement mixing method same time is formed, six roots of sensation cement mixing method is on same vertical plane, adjacent pile body overlaps mutually, adjacent Soil-cement Wall overlaps mutually.

Such scheme can once be constructed six roots of sensation cement mixing method simultaneously, decrease the multiple tracks seam of former single shaft or the formation of two axle cement mixing methods, improve efficiency of construction, decrease the amount of labour used, compensate for the defects such as three axes agitating pile displacement soil is many, water/binder ratio is large, cement mixing content is large, shorten the construction period more than 2/3rds.But as described in the program, six roots of sensation cement mixing method is on same vertical plane, and therefore agitation pile linearly distributes thus forms the cement mixing method of planar shaped, the uplift resistance of this cement mixing method, intensity need to be improved further.

Summary of the invention

The object of the invention is for the problems referred to above, provide that a kind of pile strength is high, uplift resistance much higher angle cement mixing method.

Another object of the present invention is to provide a kind of polygonal cement mixing method and the manufacturing process thereof that are easy to construction.

For achieving the above object, present invention employs following technical proposal: a kind of polygonal cement mixing method, comprise by cement and the concretionary pile body of earth, described pile body is made up of some pile bodies bonded to each other, and the cross section of described pile body has the angle of multiple circular arc, the quantity of described pile body is not less than the quantity at angle, and the axial line of some pile bodies is not at grade and be parallel to each other.

In above-mentioned polygonal cement mixing method, the cross section of each independently pile body is circular, and each pile body of composition pile body has lap with at least two other pile body respectively.

In above-mentioned polygonal cement mixing method, at least one preformed pile is also provided with in described pile body, the axial line of described preformed pile and the axis parallel of pile body, the shape of preformed pile cross section is square, polygon or circle, and described preformed pile is non-uniform pile or not non-uniform pile.

In above-mentioned polygonal cement mixing method, described pile body is formed by stacking by least two campshed bodies, and the axial line of described every campshed body at grade.

In above-mentioned polygonal cement mixing method, the T-shaped or L shape of described pile body or cross.

In above-mentioned polygonal cement mixing method, described pile body has the expansion section of at least one outstanding pile body.

In above-mentioned polygonal cement mixing method, described expansion section has several, and distance between every two expansion sections is equal or unequal.

In above-mentioned polygonal cement mixing method, described expansion section is formed by connecting by the pile body protuberance at several outstanding each angles, and the quantity of pile body protuberance is identical with the quantity at angle.

A kind of manufacturing process of polygonal cement mixing method, some drilling rods and some shotcrete pipes are pressed axial line respectively not arranged evenly at grade, every root drill rod end is provided with drill bit, some drilling rods are simultaneously toward underground drilling, when lower brill, the paddle of some drilling rods not at grade and some shotcrete pipes whitewash, when getting into set depth under drilling rod simultaneously, drilling rod and shotcrete pipe promote toward direction, ground simultaneously, and in lifting process, shotcrete pipe continues whitewashing.

In the manufacturing process of above-mentioned polygonal cement mixing method, after drilling rod and shotcrete pipe are lifted out ground, preformed pile is inserted in whitewashing liquid, described drill bit is the adjustable reaming bit of the radius of gyration, when drill bit runs into the good geological stratification of soil property, drill bit expands the radius of gyration also makes the radius of gyration of drill bit be greater than the radius of gyration of paddle.

Compared with prior art, the invention has the advantages that: because the loaded area of pile foundation is large, bearing support point is polygonal distribution, the thus good stability of pile foundation, ensure that cement earth pile does not tilt in soft foundation simultaneously, stands vertically; Have employed the pile body of many non-linear configuration, serve the effect of the contact area increasing pile body and ground, improve uplift resistance and anti-bearing capacity; Expansion section is suitable in the good soil layer of soil property, improves uplift resistance and anti-bearing capacity further.Manufacturing process easy construction of the present invention, can make agitation pile fast, thus increase work efficiency.

Accompanying drawing explanation

Fig. 1 is structural representation provided by the invention;

Fig. 2 is another kind of structural representation provided by the invention;

Fig. 3 is the cross sectional representation of pile body provided by the invention;

Fig. 4 is the cross sectional representation of another kind of pile body provided by the invention;

Fig. 5 is the cross sectional representation of another kind of pile body provided by the invention;

Fig. 6 is the cross sectional representation of another kind of pile body provided by the invention;

Fig. 7 is the cross sectional representation of another kind of pile body provided by the invention;

Fig. 8 is the structural representation of drilling rod provided by the invention and shotcrete pipe distribution;

Fig. 9 is the schematic diagram of Fig. 8 other direction.

In figure: pile body 10, angle 11, pile body 20, preformed pile 30, expansion section 40, pile body protuberance 41, drilling rod 101, shotcrete pipe 102, drill bit 103, paddle 104.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.

As shown in Figure 1, a kind of polygonal cement mixing method, comprise by cement and the concretionary pile body 10 of earth, described pile body 10 is made up of some pile bodies 20 bonded to each other, and the cross section of described pile body 10 has the angle 11 of multiple circular arc, and the quantity of described pile body 20 is not less than the quantity at angle 11, that is, when pile body 20 be positioned at pile body 10 inner time, this pile body 20 does not present angle 11, and the axial line of some pile bodies 20 is not at grade and be parallel to each other.

The cross section of each independently pile body 20 is circular, and the radius of pile body 20 can be equal or unequal, and each pile body 20 of composition pile body 10 has lap with at least two other pile body 20 respectively, and the area of lap can be equal or unequal.

As shown in Figure 2, be also provided with at least one preformed pile 30 in pile body 10, preformed pile 30 can adopt concrete to add reinforcing bar and make, and object is the intensity in order to improve agitation pile, and obvious preformed pile 30 is inner at pile body 10, can be one and also can be many.The axial line of preformed pile 30 and the axis parallel of pile body 10, the shape of preformed pile 30 cross section is square, polygon, circle or other shapes.Preformed pile 30 is non-uniform pile or not non-uniform pile, and variable cross-section described here refers to that the shape of the cross section at diverse location of same pile or size are different.

Pile body 10 has the expansion section 40 of at least one outstanding pile body 10, expansion section 40 is for improving uplift resistance and bearing capacity.Expansion section 40 has several, and distance between every two expansion sections 40 is equal or unequal.Expansion section 40 is formed by connecting by the pile body protuberance 41 at several outstanding each angles 11, and the quantity of pile body protuberance 41 is identical with the quantity at angle 11.

The varying cross-section shape of Fig. 3-Figure 7 shows that pile body 10, pile body 10 can be random arrangement, also can be well-regulated arrangement, as shown in Figure 3 quincunx, preferred version, as shown in Figure 4, pile body 10 is formed by stacking by least two campshed bodies 20, and the axial line of described every campshed body 20 at grade.As shown in Figure 5-Figure 7, pile body 10 L-shaped, T-shaped, cross respectively.In same pile body 10, preformed pile 30 can have many, and the shape of many preformed piles 30 can be the same, also can be different.

Present invention also offers a kind of manufacturing process of polygonal cement mixing method, as shown in Figure 8 and Figure 9, some drilling rods 101 and some shotcrete pipes 102 are pressed axial line respectively not arranged evenly at grade, every root drilling rod 101 end is provided with drill bit 103, some drilling rods 101 are simultaneously toward underground drilling, when lower brill, the paddle 104 of some drilling rods not at grade and some shotcrete pipes 102 whitewash simultaneously, that is the paddle 104 on every root drilling rod 101 can not interfere with an other drilling rod 101 or other paddle 104, in shotcrete pipe 102, ejection is cement paste, when drilling rod gets into set depth 101 times, drilling rod 101 and shotcrete pipe 102 promote toward direction, ground simultaneously, in lifting process, shotcrete pipe 102 continues whitewashing, drilling rod 101 and shotcrete pipe 102 can for several times up and down reciprocatingly, until cement grout fills up boring.

After drilling rod 101 and shotcrete pipe 102 are lifted out ground, preformed pile 20 is inserted in whitewashing liquid, preformed pile 20 is the concrete stake or other stakes that make in advance, described drill bit 103 is the adjustable reaming bit of the radius of gyration, when drill bit 103 runs into the good geological stratification of soil property, drill bit 103 expands the radius of gyration and makes the radius of gyration of drill bit 103 be greater than the radius of gyration of paddle 104, when drill bit 103 runs into the good geological stratification of soil property, drill bit 103 expands the radius of gyration and makes the radius of gyration of drill bit 103 be greater than the radius of gyration of paddle 104, thus form the expansion section 30 having filled whitewashing liquid, whitewashing liquid can make to be cement paste, also can be that other can fix the mortar of shaping with earth, to mix with earth at slurries that after coagulation is shaping is agitation pile, the effect of inserting preformed pile 20 in slurries is the intensity improving agitation pile.

Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Although more employ the terms such as pile body 10, angle 11, pile body 20, preformed pile 30, expansion section 40, pile body protuberance 41, drilling rod 101, shotcrete pipe 102, drill bit 103, paddle 104 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.

Claims (10)

1. a polygonal cement mixing method, comprise by cement and the concretionary pile body of earth (10), it is characterized in that, described pile body (10) is made up of some pile bodies (20) bonded to each other, and the cross section of described pile body (10) has the angle (11) of multiple circular arc, the quantity of described pile body (20) is not less than the quantity of angle (11), and the axial line of some pile bodies (20) is not at grade and be parallel to each other.
2. polygonal cement mixing method according to claim 1, it is characterized in that, the cross section of each independently pile body (20) is circular, and each pile body (20) of composition pile body (10) has lap with at least two other pile body (20) respectively.
3. polygonal cement mixing method according to claim 1 and 2, it is characterized in that, at least one preformed pile (30) is also provided with in described pile body (10), the axial line of described preformed pile (30) and the axis parallel of pile body (10), the shape of preformed pile (30) cross section is square, polygon or circle, and described preformed pile (30) is non-uniform pile or not non-uniform pile.
4. polygonal cement mixing method according to claim 1 and 2, it is characterized in that, described pile body (10) is formed by stacking by least two campshed bodies (20), and the axial line of described every campshed body (20) at grade.
5. polygonal cement mixing method according to claim 4, is characterized in that, the T-shaped or L shape of described pile body (10) or cross.
6. polygonal cement mixing method according to claim 1 and 2, is characterized in that, described pile body (10) has the expansion section (40) of at least one outstanding pile body (10).
7. polygonal cement mixing method according to claim 6, is characterized in that, described expansion section (40) has several, and distance between every two expansion sections (40) is equal or unequal.
8. polygonal cement mixing method according to claim 7, it is characterized in that, described expansion section (40) is formed by connecting by the pile body protuberance (41) at several outstanding each angles (11), and the quantity of pile body protuberance (41) is identical with the quantity of angle (11).
9. the manufacturing process of a polygonal cement mixing method, it is characterized in that, some drilling rods (101) and some shotcrete pipes (102) are pressed axial line respectively not arranged evenly at grade, every root drilling rod (101) end is provided with drill bit (103), some drilling rods (101) are simultaneously toward underground drilling, when lower brill, the paddle (104) of some drilling rods not at grade and some shotcrete pipes (102) whitewash simultaneously, when getting into set depth under drilling rod (101), drilling rod (101) and shotcrete pipe (102) promote toward direction, ground simultaneously, in lifting process, shotcrete pipe (102) continues whitewashing.
10. the manufacturing process of polygonal cement mixing method according to claim 9, it is characterized in that, after drilling rod (101) and shotcrete pipe (102) are lifted out ground, preformed pile (20) is inserted in whitewashing liquid, described drill bit (103) is the adjustable reaming bit of the radius of gyration, when drill bit (103) runs into the good geological stratification of soil property, drill bit (103) expands the radius of gyration also makes the radius of gyration of drill bit (103) be greater than the radius of gyration of paddle (104).
CN201510206649.3A 2014-04-29 2015-04-27 Polygonal cement-soil stirring pile and formation method thereof CN104863131A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201410174656.5A CN104196016A (en) 2014-04-29 2014-04-29 Quincunx cement soil mixing high-strength bearing pile and forming method
CN2014101746565 2014-04-29
CN201510206649.3A CN104863131A (en) 2014-04-29 2015-04-27 Polygonal cement-soil stirring pile and formation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510206649.3A CN104863131A (en) 2014-04-29 2015-04-27 Polygonal cement-soil stirring pile and formation method thereof

Publications (1)

Publication Number Publication Date
CN104863131A true CN104863131A (en) 2015-08-26

Family

ID=52081369

Family Applications (3)

Application Number Title Priority Date Filing Date
CN201410174656.5A CN104196016A (en) 2014-04-29 2014-04-29 Quincunx cement soil mixing high-strength bearing pile and forming method
CN201510206649.3A CN104863131A (en) 2014-04-29 2015-04-27 Polygonal cement-soil stirring pile and formation method thereof
CN201520262478.1U CN204662425U (en) 2014-04-29 2015-04-27 Polygonal cement mixing method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201410174656.5A CN104196016A (en) 2014-04-29 2014-04-29 Quincunx cement soil mixing high-strength bearing pile and forming method

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201520262478.1U CN204662425U (en) 2014-04-29 2015-04-27 Polygonal cement mixing method

Country Status (1)

Country Link
CN (3) CN104196016A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105804067A (en) * 2016-03-25 2016-07-27 上海十三冶建设有限公司 Construction method for structural steel cemented soil stirring pile stand column used for deep foundation pit support
CN107338792A (en) * 2017-06-16 2017-11-10 中建市政工程有限公司 A kind of prestressing force cement mixing method and its construction method

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105002895B (en) * 2015-06-30 2017-11-24 周兆弟 More drilling rod cement mixing methods inserted with prefabricated shaped-section
CN105421402A (en) * 2015-12-31 2016-03-23 叶连国 Rectangular inserting buckling device for cross pile and rectangular pile
CN105586917A (en) * 2016-02-22 2016-05-18 宗琪 Circular-arc buckling equipment for circular piles and pi-shaped piles
CN105696562A (en) * 2016-02-22 2016-06-22 宗琪 Insertion equipment for H-shaped piles and circular piles
CN105586918A (en) * 2016-02-22 2016-05-18 宗琪 Circular-arc inserting-buckling equipment for circular piles and pi-shaped piles
CN105696563A (en) * 2016-02-22 2016-06-22 宗琪 Insertion equipment for T-shaped piles and circular piles
CN105586921A (en) * 2016-02-28 2016-05-18 宗琪 Buckling equipment for H-shaped piles and square piles
CN105586919A (en) * 2016-02-28 2016-05-18 宗琪 Joining device for square piles and H-piles
CN105586920A (en) * 2016-02-28 2016-05-18 宗琪 Inserting device for square piles and H-piles
CN105951761A (en) * 2016-06-07 2016-09-21 深圳市宏业基基础工程有限公司 Construction method of plum blossom-shaped profile steel cement stirring wall
CN105951743A (en) * 2016-06-07 2016-09-21 深圳市宏业基基础工程有限公司 Plum blossom-shaped profile steel cement stirring wall
CN108265709A (en) * 2016-11-28 2018-07-10 林友富 A kind of construction technology of project pile deflection prevention structure used on soft soil foundation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1126264A (en) * 1994-12-26 1996-07-10 石寅生 Making method for non-annular borehole cast-in-place pile
CN1730839A (en) * 2004-08-07 2006-02-08 曾毅学 Soil-cement pile with core and diameter enlarged extension section
JP2007023609A (en) * 2005-07-15 2007-02-01 Nippon Steel Corp Earth retaining wall having water permeability
CN202064822U (en) * 2011-04-12 2011-12-07 上海工程机械厂有限公司 Multi-shaft uniform-wall-thickness large-width continuous wall drill
CN103556631A (en) * 2013-11-18 2014-02-05 高伯明 Pile-forming operation method for stirring pile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1126264A (en) * 1994-12-26 1996-07-10 石寅生 Making method for non-annular borehole cast-in-place pile
CN1730839A (en) * 2004-08-07 2006-02-08 曾毅学 Soil-cement pile with core and diameter enlarged extension section
JP2007023609A (en) * 2005-07-15 2007-02-01 Nippon Steel Corp Earth retaining wall having water permeability
CN202064822U (en) * 2011-04-12 2011-12-07 上海工程机械厂有限公司 Multi-shaft uniform-wall-thickness large-width continuous wall drill
CN103556631A (en) * 2013-11-18 2014-02-05 高伯明 Pile-forming operation method for stirring pile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105804067A (en) * 2016-03-25 2016-07-27 上海十三冶建设有限公司 Construction method for structural steel cemented soil stirring pile stand column used for deep foundation pit support
CN107338792A (en) * 2017-06-16 2017-11-10 中建市政工程有限公司 A kind of prestressing force cement mixing method and its construction method

Also Published As

Publication number Publication date
CN104196016A (en) 2014-12-10
CN204662425U (en) 2015-09-23

Similar Documents

Publication Publication Date Title
CN103835284B (en) A kind of Pile In Drill In Karst Terrain structure and construction method
CN102635120B (en) Circular deep foundation ditch is without Construction of Supporting structure and construction method
CN101748741B (en) Construction method of concrete supporting structure
CN105442560A (en) Arc buckling equipment with T-shaped piles and rectangular piles
CN101532290B (en) Granule grouting pile of ripple plastic sleeve with hole for strengthening soft soil foundation and strengthening method
CN101864773B (en) Deep foundation pit support process
CN105586959A (en) Triangular pile and T-shaped pile locking and buckling equipment
CN103556631B (en) The one-tenth pile operation method of agitation pile
CN1487150A (en) Combined grouting construction process of reinforcing foundation
CN103422497A (en) Method for reinforcing soft soil foundation by using cement-soil mixing pile
CN102691296A (en) Pipe pile foundation for static-pressure grouting on pile side and rotary jet grouting at pile bottom and construction method thereof
CN104563148B (en) building pile foundation construction method
CN1206419C (en) Combined rock-embedding pile and its construction method
CN102465524B (en) Double radial mesh-cage sand-gravel pile and construction technology thereof
CN104988910B (en) Reducing rotating spraying mixture pile
CN102071693B (en) Construction method of variable section cement-soil gravity type retaining wall
CN203947466U (en) A kind of bored pile Anti-floating reinforced bar cage
CN101591914B (en) Construction method for foundation pit supporting structure occluded by filling piles and stirring piles
CN104806257A (en) Sandy gravel stratum shield construction cap-type ground advance reinforcement structure and sandy gravel stratum shield construction cap-type ground advance reinforcement method
CN101798810A (en) Cement-soil composite pile inserted into reinforced concrete core materials
CN103572755A (en) Prestressed concrete precast pile
CN101812843B (en) Centre grouted poured post-grouting pile construction methods, and grouter and grout injector used thereby
CN103321244B (en) Sand foundation existing building sets up the construction method of basement
CN103184734B (en) A kind of construction method implanting slip casting compound pile
WO2018210019A1 (en) Pile formation method for down-the-hole impact rotary jet composite piles

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
EXSB Decision made by sipo to initiate substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20150826

RJ01 Rejection of invention patent application after publication