CN2652998Y - Bundled steel twisted wire anchor with rotary spray drill bit - Google Patents

Bundled steel twisted wire anchor with rotary spray drill bit Download PDF

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Publication number
CN2652998Y
CN2652998Y CN 200320100593 CN200320100593U CN2652998Y CN 2652998 Y CN2652998 Y CN 2652998Y CN 200320100593 CN200320100593 CN 200320100593 CN 200320100593 U CN200320100593 U CN 200320100593U CN 2652998 Y CN2652998 Y CN 2652998Y
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CN
China
Prior art keywords
anchor
soil
steel strand
pressure
drill
Prior art date
Application number
CN 200320100593
Other languages
Chinese (zh)
Inventor
崔江余
贺长俊
Original Assignee
崔江余
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
Application filed by 崔江余 filed Critical 崔江余
Priority to CN 200320100593 priority Critical patent/CN2652998Y/en
Application granted granted Critical
Publication of CN2652998Y publication Critical patent/CN2652998Y/en

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Abstract

Disclosed is a steel strand anchor rod in bundle with a rotary jet grouting drill, which comprises a steel strand in bundle, an anchor plate and an anchor head. The steel strand in bundle is fixed with the anchor head around the anchor plate; the anchor plate is provided with a centre round hole; a rotary jet grouting drill and a drill rod are passed through the round hole; a ring shape positioning steel plate and a gliding ring are fixed at the outer wall of the drill rod; a grout pipe and a nozzle are arranged in the rotary jet grouting drill. The utility model has the advantages that the high-pressure jet grouting technique and the geological drill are combined organically; the soil and the cement slurry can be mixed into the cement soil on spot with the great pressure of the high-pressure jet grouting; the controllability of the diameter is good. As is determined through the high-pressure pump adjusting the pressure, the diameter of the anchor rod can reach 300mm to 800mm. Therefore, the anti-pulling force is strong. The utility model is suitable for various soil layers, particularly suitable for the soil layers of deep sludge, soft soil, clay, sand and saturated flow plastic clay, and the soil layer with rich groundwater source.

Description

Carry the bunchy steel strand anchor pole of churning drill bit

Technical field

The utility model belongs to basic engineering construction equipment, the anchor bolt construction equipment that particularly a kind of foundation pit stope support and reinforced soft soil ground are used.

Background technology

At present, known anchor pole and soil nailing use comparatively extensive on engineering, but the diameter of anchor pole and soil nailing is generally less, limited with the contact area of the soil body, side friction is restricted, especially mould clay and the soil layer that enriches underground water source is arranged in mud, weak soil, loose sand, saturated flow, be difficult to pore-forming, become anchor.As insert reinforcing bar in soybean residue, uplift resistance is difficult to guarantee after the anchor pole moulding.The home and abroad regulation and stipulation does not generally advise using anchor pole and soil nailing in the weak soil layer.

In recent years, some anchor pole new technologies have also been developed, as once becoming anchor mud jacking technology, enlarged footing anchor pole and detachable anchor pole, but the low contradiction fine solution useless always of uplift resistance according to different soil.Main cause is that bolt diameter is less, and anchor pole surrounding soil character does not improve, and the side friction of the anchor pole and the soil body is less.When bolt diameter was increased to 200mm-800mm, its drilling machine was difficult to solve.

Summary of the invention

The purpose of this utility model is, designs and produces a kind of bunchy steel strand anchor pole that carries the churning drill bit, increases bolt diameter, to improve anti-pulling of anchor bar, overcome weak soil and saturated flow mould in the clay can not pile a difficult problem.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of bunchy steel strand anchor pole that carries the churning drill bit, form by bunchy steel strand, anchor slab, anchor head, the anchor slab periphery is with the fixing bunchy steel strand of anchor head, anchor slab has center hole, be installed with churning drill bit and drilling rod in the circular hole, drilling-rod external wall is fixed with annular stop steel plate and slip ring, is provided with slurry pipe and nozzle in the churning drill bit.

The beneficial effects of the utility model are: high-pressure rotary-spray technology and geological drilling rig are organically combined, utilize the powerful pressure of high-pressure rotary-spray that the soil body and cement paste are mixed on the spot, form cement-soil, cement-soil forms the size of diameter and determines that by pressure and soil nature that high-pressure pump provides controllability is better.Because bolt diameter is to realize that by the size that high-pressure pump is adjusted pressure so can adjust the bolt diameter that the pressure size reaches pre-design at any time according to the engineering soil implementations, generally diameter can reach 300mm-800mm.Because steel strand are anchored in the end by steel plate, uplift resistance is to rely on steel strand and steel plate jointly the cement-soil cylinder to be held, and destruction reach capacity, cement-soil cylinder integral body is extracted from the soil body, and bolt diameter is big, and the anchor pole side surface area is big, and corresponding anti-pulling of anchor bar is very big.The utility model is applicable to all kinds of soil layers, is particularly useful for deep mud, weak soil, clay, sand, saturated flow and moulds clay layer and the anchor pole of constructing in the soil layer that enriches underground water source is arranged.

Description of drawings

Below in conjunction with drawings and Examples, the utility model will be further described:

Fig. 1 is the organigram that carries the bunchy steel strand anchor pole of churning drill bit of the present utility model

Among the figure, 1, anchor slab, 2, anchor head, 3, steel strand, 4, the churning drill bit, 5, drilling rod, 6, the annular stop steel plate, 7, slip ring, 8, slurry pipe, 9, nozzle.

The specific embodiment

As seen from Figure 1, the bunchy steel strand anchor pole that carries the churning drill bit of the present utility model, form by bunchy steel strand, anchor slab, anchor head, anchor slab (1) periphery fixedly bunchy steel strand (3) of anchor head (2), anchor slab has center hole, be installed with churning drill bit (4) and drilling rod (5) in the circular hole, drilling-rod external wall is fixed with annular stop steel plate (6) and slip ring (7), is provided with slurry pipe (8) and nozzle (9) in the churning drill bit.

Course of action of the present utility model is, drives drilling rod and the churning drill bit rotates at a high speed by rig, in rotation at a high speed, drilling rod and churning drill bit pushed in the soil body; In progradation, form powerful pressure by high-pressure pump, cement paste is sent into slurry pipe in the drilling rod, spray in the soil body by high pressure nozzle again, cement paste by nozzle forms very high high-pressure spray cutting surrounding soil, forces cement paste is mixed the formation cement-soil with the soil body, according to the replacement ratio of the size adjustment soil body of high pressure, replacement ratio can reach 50-95%, and the aperture that high-pressure spray cutting surrounding soil forms can be greater than the anchor slab external diameter; Advance the drilling rod process at high-pressure rotary-spray, spacing steel plate of the stationary annular on the drilling-rod external wall and slip ring drive the anchor slab that has center hole and advance to the precalculated position, and anchor slab enters design attitude together with the bunchy steel strand; After drilling rod got into design attitude, anchor slab separated with drilling rod at design attitude together with the bunchy steel strand, stayed the bottom, drilling rod then limit churning limit withdraws from, treat the cement-soil initial set after, can carry out prestressed stretch-draw to the bunchy steel strand, to the steel strand end anchorage, form bunchy steel strand anchor pole.Drill pipe diameter 42-50mm, anchor slab external diameter 200-300mm, the aperture that high-pressure spray cutting surrounding soil forms can reach 300-800mm.

Claims (1)

1, a kind of bunchy steel strand anchor pole that carries the churning drill bit, form by bunchy steel strand, anchor slab, anchor head, it is characterized in that, the anchor slab periphery is with the fixing bunchy steel strand of anchor head, anchor slab has center hole, be installed with churning drill bit and drilling rod in the circular hole, drilling-rod external wall is fixed with annular stop steel plate and slip ring, is provided with slurry pipe and nozzle in the churning drill bit.
CN 200320100593 2003-10-16 2003-10-16 Bundled steel twisted wire anchor with rotary spray drill bit CN2652998Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200320100593 CN2652998Y (en) 2003-10-16 2003-10-16 Bundled steel twisted wire anchor with rotary spray drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200320100593 CN2652998Y (en) 2003-10-16 2003-10-16 Bundled steel twisted wire anchor with rotary spray drill bit

Publications (1)

Publication Number Publication Date
CN2652998Y true CN2652998Y (en) 2004-11-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200320100593 CN2652998Y (en) 2003-10-16 2003-10-16 Bundled steel twisted wire anchor with rotary spray drill bit

Country Status (1)

Country Link
CN (1) CN2652998Y (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101761348B (en) * 2008-10-10 2011-12-07 上海强劲地基工程股份有限公司 Multi-directional anchor pile one-step formed drilling tool
CN102409669A (en) * 2011-08-16 2012-04-11 王忠友 Construction equipment for jet grouting stiffening pile and rapid construction method based on equipment
CN102535458A (en) * 2010-12-31 2012-07-04 中航勘察设计研究院有限公司 Reinforced cement-soil anchor bolt and construction method thereof
CN102660944A (en) * 2012-05-08 2012-09-12 王忠友 Equipment and method for constructing high-pressure rotary jet stiffening pile by using ribbed drilling method
CN103031842A (en) * 2011-10-08 2013-04-10 长江大学 Soil-squeezing type soil anchor
CN103388309A (en) * 2013-08-06 2013-11-13 天津鑫坤泰预应力专业技术有限公司 Propelling device for finished steel strand bundle, and method for integrally propelling and passing
CN103397633A (en) * 2013-07-26 2013-11-20 张继红 Self-drilling RCA (recycling composite anchor) rod and construction method thereof
CN103924928A (en) * 2014-03-27 2014-07-16 苏州市能工基础工程有限责任公司 Rotary jet grouting integrated drill bit and anchor cable matching structure and construction method thereof
CN104895072A (en) * 2015-04-08 2015-09-09 中国建筑第八工程局有限公司 A pre-stressed anchor cable and a pre-stressed anchor cable one-time forming construction method
CN110042836A (en) * 2019-04-26 2019-07-23 湖南教建集团有限公司 Anchor cable one-pass molding construction method
CN110258579A (en) * 2019-06-06 2019-09-20 深圳市工勘岩土集团有限公司 Synchronous mode construction prestressed cable method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101761348B (en) * 2008-10-10 2011-12-07 上海强劲地基工程股份有限公司 Multi-directional anchor pile one-step formed drilling tool
CN102535458A (en) * 2010-12-31 2012-07-04 中航勘察设计研究院有限公司 Reinforced cement-soil anchor bolt and construction method thereof
CN102409669A (en) * 2011-08-16 2012-04-11 王忠友 Construction equipment for jet grouting stiffening pile and rapid construction method based on equipment
CN102409669B (en) * 2011-08-16 2015-01-21 王忠友 Construction equipment for jet grouting stiffening pile and rapid construction method based on equipment
CN103031842A (en) * 2011-10-08 2013-04-10 长江大学 Soil-squeezing type soil anchor
CN102660944A (en) * 2012-05-08 2012-09-12 王忠友 Equipment and method for constructing high-pressure rotary jet stiffening pile by using ribbed drilling method
CN102660944B (en) * 2012-05-08 2015-06-24 王忠友 Equipment and method for constructing high-pressure rotary jet stiffening pile by using ribbed drilling method
CN103397633A (en) * 2013-07-26 2013-11-20 张继红 Self-drilling RCA (recycling composite anchor) rod and construction method thereof
CN103388309A (en) * 2013-08-06 2013-11-13 天津鑫坤泰预应力专业技术有限公司 Propelling device for finished steel strand bundle, and method for integrally propelling and passing
CN103388309B (en) * 2013-08-06 2015-07-22 天津鑫坤泰预应力专业技术有限公司 Propelling device for finished steel strand bundle, and method for integrally propelling and passing
CN103924928A (en) * 2014-03-27 2014-07-16 苏州市能工基础工程有限责任公司 Rotary jet grouting integrated drill bit and anchor cable matching structure and construction method thereof
CN103924928B (en) * 2014-03-27 2016-02-03 苏州市能工基础工程有限责任公司 The fit structure of the bit Integrated and anchor cable of rotary jet grouting and construction method thereof
CN104895072A (en) * 2015-04-08 2015-09-09 中国建筑第八工程局有限公司 A pre-stressed anchor cable and a pre-stressed anchor cable one-time forming construction method
CN110042836A (en) * 2019-04-26 2019-07-23 湖南教建集团有限公司 Anchor cable one-pass molding construction method
CN110258579A (en) * 2019-06-06 2019-09-20 深圳市工勘岩土集团有限公司 Synchronous mode construction prestressed cable method

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: BEIJING ZHONGHE TONGCHUANG FOUNDATION ENGINEERING

Free format text: FORMER OWNER: CUI JIANGYU

Effective date: 20101028

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 100044 TUNNEL AND ROCK ENGINEERING RESEARCH CENTER, SCHOOL OF CIVIL ENGINEERING, BEIJING JIAOTONG UNIVERSITY, XIZHIMEN OUTSIDE, BEIJING TO: 100086 ROOM 276, DONGJU XINGYE BUILDING, 300 METERS WEST OF SHANGDI ROUNDABOUT, HAIDIAN DISTRICT, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20101028

Address after: 100086 Beijing city Haidian District on the West 300 island in Midong industrial office room 276

Patentee after: Beijing Zhonghe Tongchuang Foundation Engineering Co.,Ltd.

Address before: 100044 Beijing Xizhimen Beijing Jiaotong University School of civil engineering of tunnel rock

Patentee before: Cui Jiangyu

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20131016

Granted publication date: 20041103