CN110004908A - A kind of deep layer rams pipe and its construction method - Google Patents

A kind of deep layer rams pipe and its construction method Download PDF

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Publication number
CN110004908A
CN110004908A CN201910242286.7A CN201910242286A CN110004908A CN 110004908 A CN110004908 A CN 110004908A CN 201910242286 A CN201910242286 A CN 201910242286A CN 110004908 A CN110004908 A CN 110004908A
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China
Prior art keywords
pipe
protection sleeve
rammer
attachment device
ram
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CN201910242286.7A
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Chinese (zh)
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CN110004908B (en
Inventor
李平
李琪瑶
陈育民
吕亚茹
陈俊君
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Hohai University HHU
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Hohai University HHU
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Priority to CN201910242286.7A priority Critical patent/CN110004908B/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/08Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
    • 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
    • E02D5/66Mould-pipes or other moulds
    • E02D5/665Mould-pipes or other moulds for making piles

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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)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention discloses a kind of deep layers to ram pipe and its construction method; pipe is rammed including protection sleeve pipe and several sections; the protection sleeve pipe upper end is provided with the attachment device one connecting with hydraulic press; lower end is connected with flap valve shoe; the rammer pipe can be placed in the protection sleeve pipe; upper end is provided with the attachment device two connecting with vibration head, described to ram the attachment device three being additionally provided between pipe for ramming pipe combination.Above-mentioned apparatus can effectively solve the problems, such as the rammer base of super soft ground mid-deep strata weak soil, the depth bounds of strong rammer are expanded, and ram base process there is good compacted effect to the soil body, reduces soil deformation effect, soil strength is improved, and the influence of noise in work progress can be significantly reduced.

Description

A kind of deep layer rams pipe and its construction method
Technical field
The present invention relates to a kind of deep layers to ram pipe and its construction method, belongs to technical field of civil engineering.
Background technique
In recent years, domestic strong tamping technology rapidly develops, and application range is more extensive, and heavy-tamping method is to utilize to ram to ground one A biggish impact force, under impact force action, the bearing capacity of the soil body is greatly improved, and compressibility also decreases.To being at present Only, heavy-tamping method has succeeded and has been widely used for handling all kinds of gravelly soils, sandy soil, artificial earth fill and general clay etc., special It is not miscellaneous the filling out that can be handled conventional method and be difficult to the bulk rubble class soil reinforced and building, house refuse or industrial waste composition Soil.But the effect datum level of heavy-tamping method handles depth and is restricted generally in earth's surface;Common heavy-tamping method is usually to be interrupted simultaneously Formula is rammed, and construction noise is big.
Summary of the invention
It rams and manages the technical problem to be solved by the invention is to provide a kind of deep layer that the corresponding different depth soil body is reinforced And its construction method.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of deep layer rammer pipe, including protection sleeve pipe and several sections ram pipe, and the protection sleeve pipe upper end is provided with and hydraulic press The attachment device one of connection, lower end connect flap valve shoe, and the rammer pipe can be placed in the protection sleeve pipe, and upper end is provided with and shakes The attachment device two of dynamic head connection, it is described to ram the attachment device three being additionally provided between pipe for ramming pipe combination.
Further, the attachment device one uses flange connecting apparatus or buckle connecting device.
Further, the attachment device two and the attachment device three are all made of flange connecting apparatus.
Further, the protection sleeve pipe outer diameter is 0.4~1.2m.
Further, the rammer length of tube is 2~3m.
Further, the rammer tube bottom face is spherical surface.
The construction method of pipe is rammed using above-mentioned deep layer, comprising the following steps:
Step 1: according to design on-site measurement pile body position;
Step 2: carrying out precipitation in the region arrangement pipe well that need to be reinforced;
Step 3: the protection sleeve pipe and its built-in rammer pipe are squeezed into scheduled ground depth with hydraulic press, it will Hydraulic press and the protection sleeve pipe are detached from, and starting hydraulic vibration head makes to ram pipe across flap valve shoe, and it is deep to carry out the first order to the soil body Layer is rammed;
Step 4: withdrawing the rammer pipe, the protection sleeve pipe and hydraulic press are connected, will be pulled out in the protection sleeve pipe to second Grade rams position, carries out filler into protection sleeve as needed, is again started up hydraulic vibration head and rams the rammer pipe for filler It is rammed to the soil body is compacted, tamps completion step by step by being deep to shallow filler step by step.
Advantageous effects of the invention:
1. being able to solve the rammer base problem of super soft ground mid-deep strata weak soil in such a way that more piece rams pipe independent assortment, expand The big depth bounds of strong rammer.
2. being constructed using the present apparatus, work progress plays good compacted effect to the soil body of surrounding, reduces soil Body metamorphosis improves soil strength, and significantly reduces the influence of noise in work progress.
3. present apparatus of simple structure and strong practicability, applied widely, future prospect is preferable.
Detailed description of the invention
Fig. 1 is example structure schematic diagram;
Fig. 2 is embodiment construction schematic diagram.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, a kind of deep layer rams pipe, protected including being located at external protection sleeve pipe 1 and several sections in built-in The rammer pipe 2 that can be freely combined inside protecting pipe 1, protection sleeve pipe 1 upper periphery two sides are symmetrically arranged with for being clamped with hydraulic press Square hole 3, lower end connect flap valve shoe 4, and specific size material can refer to as follows: 1 outer diameter of steel protection sleeve pipe is 0.4~1.2m, Square hole 3 height in upper end is 8~10cm, 12~15cm of projection width.It may be implemented in this way quick with hydraulic press Connection, effectively improves operating efficiency.It rams and manages the setting of every section length in 2~3m, ram and be additionally provided with and can be freely combined between pipe Flange connector is combined rammer pipe according to depth requirements, rams pipe upper end and is also used to connect with vibration head, equally adopts With flanged joint, it can be adapted to the flange connector rammed between pipe unification, guarantee the versatility for ramming pipe 2, above-mentioned connection side Formula can also use other connection types, and ramming tube bottom face may be configured as plane or spherical surface, and ramming contact surface between pipe is seamless connection.
The construction method of above-mentioned apparatus is as follows:
Step 1: organizing construction's material, machinery, personnel are in place according to design on-site measurement pile body position;
Step 2: carrying out precipitation in the region arrangement pipe well that need to be reinforced;
Step 3: sleeve 1 and its built-in rammer pipe 2 will be protected to squeeze into scheduled ground depth with hydraulic press, by hydraulic press It is detached from the square hole 3 of protection sleeve upper end, starting hydraulic vibration head 5 makes to ram pipe 2 across flap valve shoe 4, as shown in Fig. 2, right The soil body carries out first order deep layer and rams;
Pipe 2 is rammed Step 4: withdrawing, connects to pull out to the second level on protection sleeve 1 by square hole and rams position, as needed Carry out filler into protection sleeve, be again started up hydraulic rammer pipe 2 and ram filler to the soil body is compacted, by be deep to shallow filler step by step by Grade compacting is completed, and compacted ram of filler can play the role of solid soil, Reducing distortion step by step.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations Also it should be regarded as protection scope of the present invention.

Claims (7)

1. a kind of deep layer rams pipe, characterized in that ram pipe including protection sleeve pipe and several sections, the protection sleeve pipe upper end be provided with The attachment device one of hydraulic press connection, lower end are connected with flap valve shoe, and the rammer pipe can be placed in the protection sleeve pipe, and upper end is set It is equipped with the attachment device two connecting with vibration head, it is described to ram the attachment device three being additionally provided between pipe for ramming pipe combination.
2. a kind of deep layer according to claim 1 rams pipe, characterized in that the attachment device one uses flange connecting apparatus Or buckle connecting device.
3. according to claim 1 or a kind of 2 described in any item deep layers ram pipe, characterized in that the attachment device two and institute It states attachment device three and is all made of flange connecting apparatus.
4. a kind of deep layer according to claim 1 rams pipe, characterized in that the protection sleeve pipe outer diameter is 0.4~1.2m.
5. a kind of deep layer according to claim 1 rams pipe, characterized in that the rammer length of tube is 2~3m.
6. a kind of deep layer according to claim 1 rams pipe, characterized in that the rammer tube bottom face is spherical surface.
7. the construction method that a kind of deep layer according to claim 1-6 rams pipe, characterized in that including following step It is rapid:
Step 1: according to design on-site measurement pile body position;
Step 2: carrying out precipitation in the region arrangement pipe well that need to be reinforced;
Step 3: the protection sleeve pipe and its built-in rammer pipe are squeezed into scheduled ground depth with hydraulic press, it will be hydraulic Machine and the protection sleeve pipe are detached from, and starting hydraulic vibration head makes to ram pipe across flap valve shoe, carry out first order deep layer rammer to the soil body It hits;
Step 4: withdrawing the rammer pipe, the protection sleeve pipe and hydraulic press are connected, will pull out to the second level and ram in the protection sleeve pipe Position is hit, carries out filler into protection sleeve as needed, hydraulic vibration head is again started up and rams the rammer pipe for filler to soil Body is compacted to be rammed, and tamps completion step by step by being deep to shallow filler step by step.
CN201910242286.7A 2019-03-28 2019-03-28 Deep ramming pipe and construction method thereof Active CN110004908B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910242286.7A CN110004908B (en) 2019-03-28 2019-03-28 Deep ramming pipe and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910242286.7A CN110004908B (en) 2019-03-28 2019-03-28 Deep ramming pipe and construction method thereof

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CN110004908A true CN110004908A (en) 2019-07-12
CN110004908B CN110004908B (en) 2024-04-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113863274A (en) * 2021-09-29 2021-12-31 台州立昌工程建设有限公司 Construction method of stable foundation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1288375A1 (en) * 2001-09-03 2003-03-05 Alois Robl Apparatus and method for producing in situ concrete columns sunk in the ground
CN101748720A (en) * 2009-12-17 2010-06-23 王继忠 Construction method of composite foundation
CN101899828A (en) * 2010-04-27 2010-12-01 河海大学 Construction method of bagged rammed small-diameter soil-cement pile composite foundation
CN107100182A (en) * 2017-05-17 2017-08-29 福建岩土工程勘察研究院 Soft foundation cluster type layering precipitation no-arbitrary pricing pipe rams system and its construction method
CN209873772U (en) * 2019-03-28 2019-12-31 河海大学 Deep rammer pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1288375A1 (en) * 2001-09-03 2003-03-05 Alois Robl Apparatus and method for producing in situ concrete columns sunk in the ground
CN101748720A (en) * 2009-12-17 2010-06-23 王继忠 Construction method of composite foundation
CN101899828A (en) * 2010-04-27 2010-12-01 河海大学 Construction method of bagged rammed small-diameter soil-cement pile composite foundation
CN107100182A (en) * 2017-05-17 2017-08-29 福建岩土工程勘察研究院 Soft foundation cluster type layering precipitation no-arbitrary pricing pipe rams system and its construction method
CN209873772U (en) * 2019-03-28 2019-12-31 河海大学 Deep rammer pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113863274A (en) * 2021-09-29 2021-12-31 台州立昌工程建设有限公司 Construction method of stable foundation

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