CN101899827A - Broken soil vibration and compaction treatment method by utilizing impact hammer in immersed tube in riprap filled foundation - Google Patents

Broken soil vibration and compaction treatment method by utilizing impact hammer in immersed tube in riprap filled foundation Download PDF

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Publication number
CN101899827A
CN101899827A CN 200910099163 CN200910099163A CN101899827A CN 101899827 A CN101899827 A CN 101899827A CN 200910099163 CN200910099163 CN 200910099163 CN 200910099163 A CN200910099163 A CN 200910099163A CN 101899827 A CN101899827 A CN 101899827A
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China
Prior art keywords
immersed tube
pipe
foundation
pile
vibration
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CN 200910099163
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Chinese (zh)
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CN101899827B (en
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严平
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严平
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Abstract

The invention relates to a novel method for carrying out shallow and deep foundation treatment on a common riprap filled foundation in the civil engineering. The method comprises the following steps of: when an immersed tube can not be vibrated and impacted while meeting broken stones, such as dimension stones, and the like in the foundation, starting a freely-falling body impact hammer in the immersed tube to carry out impacting and crushing on the dimension stones by utilizing a newly-developed broken soil vibrating pile squeezer-expander with the impact hammer in the immersed tube as well as special structures of the tube head, and simultaneously carrying out crushing and squeezing-expanding on the dimension stones by combining the vibration and the impact of a vibration hammer of the immersed tube; if necessary, filling concrete, broken stones, sands, slag, and the like in the immersed tube, and carrying out impacting, squeezing-expanding and compaction treatment on the shallow layer and the deep layer of the filled foundation. In the method, the reinforcing treatment, such as grouting, and the like can be carried out in the tube immersing process according to requirements; an engineering pile can be directly constructed on the foundation that needs subjacent bed filling treatment; and a soft subjacent layer can also be reinforced by adopting a high pressure grouting or jet grouting pile so as to satisfy various engineering requirements to the foundation.

Description

The compacted processing method of jump bit broken soil vibration in the immersed tube in the riprap filled ground

Technical field

The present invention relates to a kind of riprap filled ground that is used for and handle new technology---jump bit broken soil vibration ground compaction processing method in the immersed tube.This technology is primarily aimed to cut into a mountain and fills out ditch, cuts into a mountain and fill out the riprap treatment of filled-in foundation that sea (lake, river) forms, when on this type of ground, transforming object of construction production such as bridge, water conservancy, municipal pipeline and industry and civilian construction, provide a kind of new method of ground processing.

Background technology

In as civil engineering constructions such as road and bridge engineering, hydraulic engineering, municipal pipeline engineering, Industrial and Civil Engineering, often cut into a mountain as required and fill out ditch, cut into a mountain and fill out the sea, fill out the lake and fill out river construction, formed this class riprap filled ground thus.The characteristics of this riprap filled ground are:

1, fill stratum is made up of the very uneven stone riprap of granular size, and the size of particle is very inhomogeneous, and the big diameter that has surpasses the megalith of 1~2m;

2, the arrangement skeleton of fill stratum particle is very inhomogeneous, exists very big space and unstability, easily produces particle and rearrange and produce local subsiding under external force;

3, the thickness of fill stratum and buried depth and distribution are very inhomogeneous, and thin shallow place is that basement rock exposes, and thick place can reach tens meters;

4, soft substratum is often arranged under the fill stratum, especially fill out lake maritime works's journey, ground also is in the sinking state under the fill stratum effect, and distortion reaches stable far away.

Because the particle and the distributed pole of this class riprap filled ground are inhomogeneous, existing various stake types almost can't pass through pile, and unique dashing grabbed the pore-forming stake and also had shortcomings such as pile difficulty, speed of application are slow, cost height.Handle in addition this class banket existing dynamic compaction and grouting since its to handle degree of depth limited, and can't solve intensity, distortion and the stable problem of soft substratum and restricted.Therefore how to handle this class riprap filled ground well, the difficult problem that all kinds of civil engineering projects of construction that make safety on this class ground are present geotechnical engineerings circle.

Summary of the invention

The present invention is directed to riprap common in the civil engineering and fill out ground, develop a kind of new technology that can carry out shallow-layer and deep foundation processing to it, this ground New Method for Processing is to utilize band jump bit broken soil vibration extruded and extended pile machine in the immersed tube newly developed, adopt the broken soil of jump bit in conjunction with the squeezed and second-time breakage method of immersed tube head vibration, can carry out deep layer and the compacted displacement ground processing of shallow-layer according to requirement of engineering to the riprap filled ground, also can pass through the riprap fill stratum and enter design bearing stratum formation engineering piles, make to satisfy and on this type of ground, build of the requirement of various civil engineering projects foundation.

The present invention solves the technical scheme that its technical problem adopts

The technical scheme that the present invention solves its technical problem employing is to utilize band jump bit broken soil vibration extruded and extended pile machine in the immersed tube newly developed, utilize the special tectonic of tube head, when obstacle such as boulder can't the vibratory impulse immersed tube in meeting ground, the freely falling body jump bit carries out impact grinding to piece stone in the startup pipe, once more piece stone is carried out fragmentation and squeezed in conjunction with the vibration of immersed tube vibrating hammer with impact simultaneously; In immersed tube, insert concrete, rubble, sand, slag etc. in case of necessity, to the shallow-layer and the deep layer of filled ground impact, squeezed and compacted processing.Consolidation process such as also can in the immersed tube process, be in the milk as required; To the ground that the substratum that will banket is handled, directly construction works stake is to satisfy the requirement of various engineerings to ground.

Description of drawings

Accompanying drawing 1: the structure sketch of immersed tube vibrating hammer and jump bit and squeezed head;

Accompanying drawing 2: the broken native squeezed ground compaction handling principle signal of immersed tube;

Accompanying drawing 3: the flexible pile of riprap fill stratum shallow-layer and deep layer is handled schematic diagram;

Accompanying drawing 4: the rigid pile of riprap fill stratum shallow-layer and deep layer is handled schematic diagram;

Accompanying drawing 5: the high-pressure slip-casting of riprap fill stratum shallow-layer and deep layer is handled schematic diagram;

Accompanying drawing 6: the rigid pile foundation that passes the riprap fill stratum;

Accompanying drawing 7: pass the riprap fill stratum carries out high-pressure slip-casting or rotary churning pile reinforcing formation to soft substratum composite foundation.

Among the figure: 1---the stake immersed tube; 2---the squeezed head of immersed tube; 3---jump bit in the pipe; 4---the immersed tube vibrating hammer; 5---squeezed the broken alloy of side direction protrudes cutter head; 6---impact the broken cutter head of tup alloy; 7---the broken alloy cutter head of immersed tube head.

The specific embodiment

Thickness according to the riprap fill stratum, the banket soil nature of substratum, and be built on this class ground the civil engineering project to the requirement of ground, can be divided into two parts of processing to this type of riprap treatment of filled-in foundation to soft substratum under the processing of fill stratum itself and the fill stratum.According to the requirement of the engineering of building to this class riprap filled ground, the inventive method can have following embodiment to the processing of this type of fill stratum:

1, by the latticed layout in stake position, adopt the squeezed compacted effect of hammering blow vibration sinking tube in the pipe, make to huddle piece clitter stack structure and misplace compacted.Wherein the impact of hammer is played broken boulder and pipe is sunk and to the compacted effect of ramming of ground in the pipe, vibrating hammer drives the vibration and the impact of immersed tube and plays the squeezed and compacted effect of piece stone second-time breakage, so combines and can carry out the compacted processing of shallow-layer and deep layer to this type of fill stratum;

2, in above-mentioned " 1 " sinking tube compacted effect, in immersed tube, drop into rubble, sand or slag etc., utilize ramming of hammering into shape in the pipe that fill stratum is squeezed the effect of filling out, form flexible pile composite foundations such as broken stone pile, sand pile or slag stake behind the vibration pipe-drawing;

3, in above-mentioned " 1 " sinking tube compacted effect, in immersed tube, drop into earlier the dry concrete, utilize ramming of hammer in the pipe that fill stratum squeezed to fill out equally.Immersed tube pours into after the design elevation in concrete (can the put into reinforcing cage in case of necessity) vibration and pulls out the formation rigid pile composite foundation;

4, in above-mentioned " 1 " sinking tube compacted effect, in pipe, irritate the sand bath, the riprap space is squeezed filled out, and can carry out the cement grouting operation as required, the ground that disorderly rockfills is carried out grouting and reinforcing handle.

Above-mentioned reinforcement depth and reinforcement degree to the riprap fill stratum can be taken all factors into consideration employing to the requirement of ground according to object of construction production.To there being the state of soft substratum below the fill stratum,, can adopt following processing method according to the requirement of object of construction production to ground:

1, after the squeezed immersed tube of hammering blow broken soil vibration passed fill stratum in the employing pipe, directly vibration sinking tube entered bearing stratum, puts into reinforcing cage, pours into concrete, pulls out formation engineering piles in back in the vibration, as the pile foundation of construction works project.After passing fill stratum, also can in pipe, pour into the dry concrete, utilize in the pipe hammer to ram to drive immersed tube to enter bearing stratum, and ram the expansion pile crown, put reinforcing cage then, irritate concrete after tube drawing form the pile foundation that band expands head, pile capacity is significantly improved;

2, can pass fill stratum by designing requirement part immersed tube,, make these stakes play the control settlement action, form the composite foundation that sedimentation is controlled in the long stake of rigidity, satisfy the requirement of object of construction production ground with the fill stratum of having handled by above-mentioned " 1 " requirement pile;

3, after immersed tube passes fill stratum, can carry out high-pressure slip-casting and rotary churning pile reinforcing,, pour into rubble, sand, slag or concrete then or irritate sand cement injection tube drawing formation composite foundation to satisfy the requirement of object of construction production to ground to soft substratum; Pour into sandstone after also can putting into the churning pipe in the stake pipe, after soft sleeper layer rotary jet strengthening handled, the churning of immersed tube limit was pulled out to ground in the limit, forms the reinforced composite ground of omnidistance rotary churning pile.

Except that above-mentioned embodiment, the present invention can also have other embodiment, and all employings are equal to the technical scheme of replacement or equivalents, all drop on the claimed scope of the present invention.

Claims (6)

1. the squeezed immersed tube method for processing foundation of jump bit broken soil vibration in the pipe is characterized in that: equipment vibrating hammer and can pass through vibrating hammer and enter jump bit in the pipe on the vibrator sunk pile machine of new research and development.Jump bit is for becoming diameter step cylinder, and the inside of immersed tube head has the hammering tube wall to drive the protruding margo that pipe sinks, and the immersed tube head has the immersed tube of convex outer curve shape to impact and vibrate squeezed head (accompanying drawing 1) outward.When consolidated subsoil, utilize the impact grinding and the jump bit of jump bit in the pipe to drive the squeezed compacted effect that immersed tube sinks, start simultaneously vibrating hammer as required immersed tube is impacted downwards and vibration (accompanying drawing 2), reach reinforcing purpose riprap fill stratum shallow-layer and deep layer.
2. the squeezed immersed tube method for processing foundation of jump bit broken soil vibration in the pipe, it is characterized in that: require in the immersed tube process of facility in right 1, in immersed tube, pour into materials such as rubble, sand, slag, utilize the effect of ramming of hammer in the pipe that soil layer is carried out compacted filling, form flexible pile composite foundations (accompanying drawing 3) such as broken stone pile, sand pile, slag stake behind the vibration pipe-drawing.
3. the squeezed immersed tube method for processing foundation of jump bit broken soil vibration in the pipe, it is characterized in that: require in the immersed tube process of facility in right 1, in immersed tube, pour into the dry concrete, utilize the effect of ramming of hammer in the pipe that soil layer is carried out compacted filling, immersed tube is after design elevation, pour into concrete (putting into reinforcing cage in case of necessity), form rigid pile composite foundation (accompanying drawing 4) behind the vibration pipe-drawing.
4. the squeezed immersed tube method for processing foundation of jump bit broken soil vibration in the pipe, it is characterized in that: require in the immersed tube process of facility in right 1, in pipe, irritate the sand bath, the space of riprap fill stratum squeezed fill out, and can carry out the cement grouting operation as required, the riprap fill stratum is carried out the grouting and reinforcing of shallow-layer and deep layer and handle (accompanying drawing 5).
5. the squeezed immersed tube method for processing foundation of jump bit broken soil vibration in the pipe, it is characterized in that: in right 1 requires the immersed tube process of facility, pass through fill stratum, enter the bearing stratum of designing requirement, put into reinforcing cage, pour into concrete, vibration pipe-drawing forms engineering piles, as the pile foundation that is built in object of construction production on this class filled ground; But also pour into the dry concrete in the immersed tube, utilize the immersed tube of ramming of hammer in the pipe to enter bearing stratum and expand pile crown, pulling out on after putting into reinforcing cage then and pouring into concrete becomes the rigid pile (accompanying drawing 6) that band expands head.
6. the squeezed immersed tube method for processing foundation of jump bit broken soil vibration in the pipe, it is characterized in that: after right 1 requires the immersed tube of facility to pass through the riprap fill stratum, soft substratum under the fill stratum is carried out slip casing by pressure and rotary churning pile reinforce, form composite foundation by claim 2,3,4 method tube drawing then; Pour into sandstone after also can putting into the churning pipe in the stake pipe, after soft sleeper layer rotary jet strengthening handled, the churning of immersed tube limit was pulled out to ground in the limit, forms the reinforced composite ground (accompanying drawing 7) of omnidistance rotary churning pile.
CN200910099163.9A 2009-06-01 2009-06-01 Broken soil vibration and compaction treatment method by utilizing impact hammer in immersed tube in riprap filled foundation CN101899827B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321203A (en) * 2013-07-03 2013-09-25 李华伟 Method for strongly impacting and expanding piles by conical rammer
CN105239567A (en) * 2015-10-26 2016-01-13 高佰明 Stirring pile driver with local vibration and high-pressure injection functions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1039645A (en) * 1964-04-13 1966-08-17 Albert George Bodine Method and apparatus for creating a load bearing region in earthen material
CN1030208C (en) * 1993-09-12 1995-11-01 黎应因 Construction method for basic pile
CN100552148C (en) * 2003-10-23 2009-10-21 土工桩墩全球有限公司 From soil matrix, form one or interval and construct the equipment and the method for buttress continuously
KR20040052779A (en) * 2004-03-20 2004-06-23 윤 용 송 Pile with an Extended Head and working method of the same
DE102006005242A1 (en) * 2006-02-03 2007-08-16 Alexander Degen Jogger arrangement and method for producing material columns in the ground
CN101058111A (en) * 2007-05-11 2007-10-24 张立新 Dropping grabbing tamping hammer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321203A (en) * 2013-07-03 2013-09-25 李华伟 Method for strongly impacting and expanding piles by conical rammer
CN103321203B (en) * 2013-07-03 2016-05-04 李华伟 Taper hammer ram brute force develops a method
CN105239567A (en) * 2015-10-26 2016-01-13 高佰明 Stirring pile driver with local vibration and high-pressure injection functions
CN105239567B (en) * 2015-10-26 2017-01-25 高佰明 Stirring pile driver with local vibration and high-pressure injection functions

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Address after: The ancient Pier Road Hangzhou city Zhejiang province 310000 No. 673 Xihu District Ruibo International Building, B block 16 layer

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