CN207260136U - Ultra-deep bored pile borehole cleaning system - Google Patents

Ultra-deep bored pile borehole cleaning system Download PDF

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Publication number
CN207260136U
CN207260136U CN201720454863.5U CN201720454863U CN207260136U CN 207260136 U CN207260136 U CN 207260136U CN 201720454863 U CN201720454863 U CN 201720454863U CN 207260136 U CN207260136 U CN 207260136U
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China
Prior art keywords
pump
removing system
dreg
dreg removing
sandstone
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CN201720454863.5U
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李兴林
廖广超
孔维鹏
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China Coal Jiangnan Construction Development Group Co., Ltd
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GUANGDONG CHINA COAL JIANGNAN FOUNDATION ENGINEERING Co Ltd
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Abstract

Ultra-deep bored pile borehole cleaning system, reacting cycle dreg removing system is lifted including direct circulation dreg removing system and pump, the direct circulation dreg removing system is made of flow pipe and diving slurry pump, diving slurry pump is arranged in No.1 mud pit, and foot of hole is connected to by flow pipe, No.1 mud pit is connected with No.1 sedimentation basin, and No.1 sedimentation basin is connected with drilling;Pump, which lifts reacting cycle dreg removing system, includes submersible sandstone pump assembly, submersible sandstone pump assembly is made of gravel pump and host, gravel pump is arranged on the top of host, sandstone pump inlet is connected to foot of hole by dreg-drawing pipe, outlet is connected to No. two sedimentation basins by pipeline, No. two sedimentation basins connect No. two mud pits, No. two mud pit connection drillings;The ultra-deep bored pile borehole cleaning system combination direct circulation dreg removing system and pump lift reacting cycle dreg removing system, drill with reference to reverse circulation, effective cleaning hole bottom sediment, and simultaneity factor stability is high.

Description

Ultra-deep bored pile borehole cleaning system
Technical field
Field of civil engineering is the utility model is related to, especially a kind of ultra-deep bored pile borehole cleaning system.
Background technology
Bored concrete pile system refer to engineering site by machine drilling, steel pipe soil compaction or manpower excavate etc. means in foundation soil Stake holes is formed, and steel reinforcement cage, concrete perfusion and the stake made are placed in it, different according to forming hole method, bored concrete pile again may be used It is divided into several classes such as driven cast-in-place pile, cast-in-situ bored pile and digging hole filling pile.Bored pile construction is convenient, and equipment is simple, construction Low noise, it is without friction, without extruding, adjacent building is influenced small, adapt to various soil conditions, thus in civil construction, water conservancy It is widely adopted in the various engineerings such as water power and harbor traffic.In addition, it is small to stake footpath, stake limitation deeply, the major diameter that can construct, Ultra-deep, high-bearing capacity single pile.But ultra-deep and large diameter cast-in-situ bored pile generally requires to penetrate multilayer formation and bad ground, The general pore-forming time is longer, is required for using mud off pore-forming, difficulty of construction is relatively large.It is exactly hole to go wrong most Bottom sediment is blocked up, seriously affects the quality of stake, causes pile foundation settlement excessive, influences the bearing capacity of pile foundation.Control and solution stake The key link of bottom sediment is exactly borehole cleaning link.
Utility model content
The utility model aims to provide a kind of direct circulation dreg removing system and pump of combining and lifts reacting cycle dreg removing system, effectively removes Bottom hole sediment, the high ultra-deep bored pile borehole cleaning system of simultaneity factor stability.
To achieve the above object, the utility model provides following technical solution:Ultra-deep bored pile borehole cleaning system, including just follow Ring dreg removing system and pump lift reacting cycle dreg removing system, and the direct circulation dreg removing system is made of flow pipe and diving slurry pump, dive Cement slurrypump is arranged in No.1 mud pit, and is connected to foot of hole by flow pipe, and No.1 mud pit connects with No.1 sedimentation basin Logical, No.1 sedimentation basin is connected with drilling;Pump, which lifts reacting cycle dreg removing system, includes submersible sandstone pump assembly, submersible sandstone pump machine Group is made of gravel pump and host, and gravel pump is arranged on the top of host, and sandstone pump inlet is connected to foot of hole by dreg-drawing pipe, Outlet is connected to No. two sedimentation basins by pipeline, and No. two sedimentation basins connect No. two mud pits, No. two mud pit connection drillings.
Further scheme as the utility model:The bottom of the submersible sandstone pump assembly is connected by drilling rod and bored Head, the top connection kelly bar of submersible sandstone pump assembly.
Further scheme as the utility model:The flow pipe and dreg-drawing pipe are generally evenly distributed on the outside of host.
Compared with prior art, the beneficial effects of the utility model are:The ultra-deep bored pile borehole cleaning system combination direct circulation Dreg removing system and pump lift reacting cycle dreg removing system, drill with reference to reverse circulation, effective cleaning hole bottom sediment, simultaneity factor stability Height, is worth promoting.
Brief description of the drawings
Fig. 1 is the structure diagram of the direct circulation dreg removing system of the utility model;
Fig. 2 is that the pump of the utility model lifts the structure diagram of reacting cycle dreg removing system.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1-2, in the utility model embodiment, ultra-deep bored pile borehole cleaning system, including direct circulation dreg removing system Reacting cycle dreg removing system is lifted with pump, the direct circulation dreg removing system is made of flow pipe 3 and diving slurry pump 4, diving slurry pump 4 are arranged in No.1 mud pit 5, and are connected to foot of hole by flow pipe 3, and No.1 mud pit 5 is connected with No.1 sedimentation basin 6, No.1 sedimentation basin 6 is connected with drilling;Pump, which lifts reacting cycle dreg removing system, includes submersible sandstone pump assembly, submersible sandstone pump assembly It is made of gravel pump 7 and host 1, gravel pump 7 is arranged on the top of host 1, and 7 import of gravel pump is connected to drilling by dreg-drawing pipe 8 Bottom, outlet are connected to No. two sedimentation basins 9 by pipeline, and No. two sedimentation basins 9 connect No. two mud pits 10, No. two mud pits 10 Connection drilling.
Above-mentioned, the bottom of submersible sandstone pump assembly connects drill bit 2 by drilling rod, connects at the top of submersible sandstone pump assembly Connect kelly bar.
Above-mentioned, flow pipe 3 and dreg-drawing pipe 8 are generally evenly distributed in the outside of host 1.
The design feature and its principle of the utility model:Ultra-deep bored pile borehole cleaning system, including two parts, set in stake holes Put a direct circulation slagging structure and a pump lifts reacting cycle slagging structure, direct circulation slagging structure is as shown in Figure 1, pump lifts counter follow Ring slagging structure is the perfusion of major diameter ultra-deep for this engineering bored concrete pile shown in as shown in Fig. 2, slag thing circulates in the direction of arrows Stake, and the borehole cleaning for using positive and negative circulation to combine, in use, complete borehole cleaning of conduit is opened using 3PN diving slurry pumps under behind whole hole Beginning direct circulation borehole cleaning, it is therefore an objective to which precipitating the particulate material in hole by mud pit reduces sand content in mud, and about borehole cleaning 1 is small Shi Hou.Using gas lift reverse circulation mode borehole cleaning.
First, conduit decentralization depth is advisable with grout outlet bottom away from heavy 30~40cm of silt face, and air hose (water pipe) decentralization depth is general Determined with gas slurry mixer to mud identity distance from 0.55~0.65 with the ratio between hole depth.
2nd, the major parameter of air compressor machine:6~9m3/min of air quantity, wind pressure 0.7MPa.Diameter of outflow tube > φ 110, air-supply Pipe diameter (water pipe) φ 25.Mixer makes of 25 water pipes of φ, and 6 rows are made a call in 1m or so length ranges, often arranges 48 holes of φ and is Can.
3rd, during putting in blast should first hole send slurry (mending slurry), stop should first closing during borehole cleaning breaking after gas and starch.It is special during borehole cleaning Not it is noted that mending slurry amount, prevent because mend starch insufficient (loss of flood peak) and caused by collapse hole.
4th, air output should from small to large, and wind pressure should be slightly larger than bottom hole head pressure, when bottom hole sediment is thicker, lumpiness is larger, Or when precipitating hardened, air output can be suitably increased, and outlet pipe (conduit) is shaken, with sharp deslagging.
5th, with the discharge of boring mud, bottom hole sinks that silt thickness is smaller, and outlet pipe (conduit) should synchronously follow up, to keep tube bottom Mouth and the distance in heavy silt face.
6th, after borehole cleaning, mud balance should be less than 1.20 in hole, 18~20s of viscosity, bottom hole sediment thickness≤5cm.
The purpose of second of borehole cleaning is to allow the proportion of mud in hole, sand factor, bottom hole precipitation thickness to meet grout requirement. First time borehole cleaning is carried out behind whole hole, by placing the processes such as steel reinforcement cage, welding, decentralization conduit, generally requires 3.5h or so, Since during this period of time mud can slowly sink in quiet than state, the gravel being suspended in originally in mud, aggregate chips and mud in hole Manhole bottom, and while placing steel reinforcement cage and conduit can also collide hole wall, cause the silt particle of hole wall to fall in hole, therefore in hole or meeting There is certain thickness sediment.After steel reinforcement cage and catheter installation, second of borehole cleaning is carried out using conduit before filling concrete, is adopted It is Pump breath countercirculate with borehole cleaning mode.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It is appreciated that other embodiment.

Claims (3)

1. ultra-deep bored pile borehole cleaning system, including direct circulation dreg removing system and pump lift reacting cycle dreg removing system, it is characterised in that institute Direct circulation dreg removing system to be stated to be made of flow pipe and diving slurry pump, diving slurry pump is arranged in No.1 mud pit, and by giving Water pipe is connected to foot of hole, and No.1 mud pit is connected with No.1 sedimentation basin, and No.1 sedimentation basin is connected with drilling;Pump lifts reacting cycle Dreg removing system includes submersible sandstone pump assembly, and submersible sandstone pump assembly is made of gravel pump and host, and gravel pump is arranged on master The top of machine, sandstone pump inlet are connected to foot of hole by dreg-drawing pipe, and outlet is connected to No. two sedimentation basins by pipeline, No. two Sedimentation basin connects No. two mud pits, No. two mud pit connection drillings.
2. ultra-deep bored pile borehole cleaning system according to claim 1, it is characterised in that the submersible sandstone pump assembly Bottom connects drill bit, the top connection kelly bar of submersible sandstone pump assembly by drilling rod.
3. ultra-deep bored pile borehole cleaning system according to claim 1, it is characterised in that the flow pipe and dreg-drawing pipe are It is evenly distributed on the outside of host.
CN201720454863.5U 2017-04-26 2017-04-26 Ultra-deep bored pile borehole cleaning system Active CN207260136U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720454863.5U CN207260136U (en) 2017-04-26 2017-04-26 Ultra-deep bored pile borehole cleaning system

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110144887A (en) * 2019-05-24 2019-08-20 中国建筑第五工程局有限公司 Vast sky stake bored pile construction method
CN110159186A (en) * 2019-05-24 2019-08-23 中国建筑第五工程局有限公司 Slurry drilled pile drilling construction method
WO2019178857A1 (en) * 2018-03-23 2019-09-26 深圳瀚飞科技开发有限公司 Earth lifting device for drilling system
CN110984889A (en) * 2019-12-10 2020-04-10 宣城市政建设集团有限公司 Cast-in-place pile construction is with clear hole device in back of drilling
CN112502614A (en) * 2020-12-07 2021-03-16 黄河勘测规划设计研究院有限公司 Reverse seepage flow wall protection process for loose stratum pipe well construction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019178857A1 (en) * 2018-03-23 2019-09-26 深圳瀚飞科技开发有限公司 Earth lifting device for drilling system
CN110144887A (en) * 2019-05-24 2019-08-20 中国建筑第五工程局有限公司 Vast sky stake bored pile construction method
CN110159186A (en) * 2019-05-24 2019-08-23 中国建筑第五工程局有限公司 Slurry drilled pile drilling construction method
CN110984889A (en) * 2019-12-10 2020-04-10 宣城市政建设集团有限公司 Cast-in-place pile construction is with clear hole device in back of drilling
CN110984889B (en) * 2019-12-10 2021-11-16 宣城市政建设集团有限公司 Cast-in-place pile construction is with clear hole device in back of drilling
CN112502614A (en) * 2020-12-07 2021-03-16 黄河勘测规划设计研究院有限公司 Reverse seepage flow wall protection process for loose stratum pipe well construction

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Address after: 510000 Unit 1002-1007, 140 Dongfeng West Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee after: China Coal Jiangnan Construction Development Co., Ltd.

Address before: 510000 Unit 1002-1007, 140 Dongfeng West Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee before: Guangzhou Zhongmei Jiangnan Foundation Engineering Co., Ltd.

Address after: 510000 Unit 1002-1007, 140 Dongfeng West Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee after: Guangzhou Zhongmei Jiangnan Foundation Engineering Co., Ltd.

Address before: 510000 Unit 1002-1007, 140 Dongfeng West Road, Yuexiu District, Guangzhou City, Guangdong Province

Patentee before: Guangdong China Coal Jiangnan Foundation Engineering Co., Ltd.

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: Unit 1002-1007, 140 Dongfeng West Road, Yuexiu District, Guangzhou, Guangdong 510000

Patentee after: China Coal Jiangnan Construction Development Group Co., Ltd

Address before: Unit 1002-1007, 140 Dongfeng West Road, Yuexiu District, Guangzhou, Guangdong 510000

Patentee before: CHINA COAL JIANGNAN CONSTRUCTION DEVELOPMENT Co.,Ltd.

CP01 Change in the name or title of a patent holder