CN100558990C - Drilling grouting mixing method and device for bottom expansion and pressure grouting concrete - Google Patents

Drilling grouting mixing method and device for bottom expansion and pressure grouting concrete Download PDF

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CN100558990C
CN100558990C CNB2005100103564A CN200510010356A CN100558990C CN 100558990 C CN100558990 C CN 100558990C CN B2005100103564 A CNB2005100103564 A CN B2005100103564A CN 200510010356 A CN200510010356 A CN 200510010356A CN 100558990 C CN100558990 C CN 100558990C
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stirring
grouting
drill
drilling
concrete
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CN1936194A (en
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曹兴明
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Heilongjiang Dongyu Foundation Engineering Co ltd
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Abstract

钻孔注浆搅拌扩底压灌混凝土方法及装置，目前建筑桩基础采用的注浆搅拌扩底方法中，其使用的装置经常损坏，故障率高，不能保证搅拌扩底工艺正常进行。本发明及其装置则可以解决以上的问题，当钻机钻进时，通过设在弯管上的注浆管路向钻杆芯管内注入水泥浆，当钻到设计深度时启动设置在动力头上部的液压油缸，通过液压油缸活塞杆下端的防拧回转头拉动钢丝绳，带动翻转式钻头翻转，翻转的直径超出钻杆直径达到设计要求后，边旋转扩底边上提，当翻转钻头将桩端的砂土层与水泥浆搅拌扩底达到设计高度后，液压油缸收回翻转钻头停止搅拌扩底，最后边压灌混凝土边提钻成桩。本发明适用于建筑桩基础的建筑施工中。

Figure 200510010356

The method and device for drilling, grouting, stirring, bottom expansion, and pressure pouring concrete. In the grouting, stirring, bottom expansion method currently used in building pile foundations, the devices used are often damaged, and the failure rate is high, which cannot ensure the normal operation of the stirring bottom expansion process. The present invention and its device can solve the above problems. When the drilling rig is drilling, the cement slurry is injected into the core tube of the drill pipe through the grouting pipeline arranged on the elbow, and when the drill reaches the design depth, the grout installed on the upper part of the power head is started. The hydraulic cylinder pulls the wire rope through the anti-twist rotary head at the lower end of the piston rod of the hydraulic cylinder, and drives the flip-type drill bit to turn over. After the turned diameter exceeds the diameter of the drill pipe and meets the design requirements, it is lifted while rotating and expanding the bottom. After the sandy soil layer and the cement slurry are mixed and expanded to reach the design height, the hydraulic cylinder retracts and turns the drill bit to stop stirring and expands the bottom, and finally the concrete is poured while lifting the drill to form a pile. The invention is suitable for building construction of building pile foundations.

Figure 200510010356

Description

Boring slip casting is stirred and is expanded base pressure concrete placing method and device
Technical field:
The present invention relates to a kind of job practices and device thereof of building pile foundation.
Background technology:
Expanding method that present building pile foundation generally adopts and the slip casting stirring expansion subdrilling bar central pump concrete device of oneself declaring by me, this device exist hydraulic jack in drill bit place work under bad environment, when stretching out, oil cylinder is easier to damage with sand layer agitating friction ratio, fault rate is undesirable, influential to stirring the expansion bottom technique, hydraulic oil pipe, is stopped by the rigid piece scratch in the soil layer to bore to drill bit along drilling-rod external wall sometimes.
Summary of the invention:
The purpose of this invention is to provide carry on a kind of stir expand the end automatically the boring slip casting of control stir and expand base pressure concrete placing method and device thereof.
Above-mentioned purpose realizes by following technical scheme:
Boring slip casting is stirred and is expanded base pressure concrete placing method, when rig creeps into, in drilling rod core pipe, inject cement paste by the grouting pipeline that is located on the bend pipe, when getting into projected depth, start the hydraulic jack that is arranged on unit head top, the anti-swiveling head pulling wire rope of twisting by the hydraulic cylinder piston rod lower end, drive convertible drill bit upset, after the diameter of upset exceeds drill pipe diameter and reaches designing requirement, the limit is carried on the rotation expansion base, when the upset drill bit stirs the sand layer of stake end and cement paste after the expansion end reaches design height, hydraulic jack is regained the upset drill bit and is stopped to stir the expansion end, and backmost the guncreting limit is carried and is drilled to stake.
Expansion base pressure concrete placing method is stirred in above-mentioned boring slip casting, injects concrete when the end is expanded in stirring separately and stirs into expansion end pile.
Expansion base pressure concrete placing method is stirred in above-mentioned boring slip casting, injects cement paste when the end is expanded in stirring separately and stirs expansion end pile.
Above-mentioned boring slip casting is stirred and is expanded base pressure concrete placing method, when finish expand the end stir carry the drilling rod guncreting in the rotation after, in the sand layer, do not regain the upset drill bit, pile body forms screw thread.
Above-mentioned boring slip casting is stirred and is expanded base pressure concrete placing method, this method slip casting when dried operation pore-forming is stirred and is expanded the end and finish, and proposes cast pile concrete pile behind the drilling rod, all injects cement pastes when wet trade, after finishing the stirring expansion end, propose drilling rod, insert reinforcing cage and throw in the rubble pile.
The mixing plant that expands the base pressure concrete placing is stirred in the boring slip casting that above-mentioned method is used, its composition comprises: unit head, connected drilling rod, be connected with hydraulic jack and concrete pipeline on the described unit head, be connected with grouting pipeline on the described concrete pipeline, be connected with the anti-swiveling head of twisting that the lower end connects wire rope on the described hydraulic jack, be connected with the upset drill bit on the described wire rope, be welded with the brill leaf on the described drilling rod, antitorque clamping plate are equipped with in the end, lower end of described drilling rod, and described drilling rod bottom is bored on the leaf and is welded with reaction plate.
The mixing plant that expands the base pressure concrete placing is stirred in above-mentioned boring slip casting, and described wire rope and described drilling rod rotate synchronously.
The mixing plant that expands the base pressure concrete placing is stirred in above-mentioned boring slip casting, and described wire rope replaces with reinforcing bar or shaped steel.
The mixing plant that expands the base pressure concrete placing is stirred in above-mentioned boring slip casting, and shape or triangle or trapezoidal are harrowed in being shaped as of the apex point of described upset drill bit.
The mixing plant that expands the base pressure concrete placing is stirred in above-mentioned boring slip casting, and described wire rope is contained in the outside or the inboard of described drilling rod core pipe.
This technical scheme has following beneficial effect:
1. the present invention utilizes the upset of convertible drill bit to exceed drill pipe diameter to reach the unidirectional rotation reaming of intended diameter, switching process spurs wire rope by oil cylinder, surpass drill pipe diameter at the convertible drill bit of pulling and finish the expansion end and cement paste or concrete stirring, enlarged end resistance area, improved bearing capacity of single pile.
2. the inventive method is simple in structure, operation easily, and reliable in quality, speed of application is fast, and the every pile overall process of this method only need once be crept into and be proposed to finish slip casting stirring expansion base pressure concrete placing, has wide practical use.
3. proposing the stirring expansion on the inventive method has been finished has automatic control system to control automatically expanding the end and stirring during the end, guaranteed expansion substrate amount.
4. its drill bit of device of using of the inventive method is convertible drill bit, by the upset drill bit sand layer of stake end and cement paste is stirred during work and expands the end and reach design height, and the drill bit structure that overturns is simple, and volume is little can not to influence the speed of creeping into.
5. use this job practices to construct, bearing capacity of single pile is increased, because when on finishing the stirring of the expansion end, carrying the drilling rod guncreting, operation can not regain drill bit, unit head slow-speed of revolution rotation, last pressure-raising concrete placing in the sand layer, pile body can form screw thread, improve bearing capacity of single pile, and the cost of this method is lower, can create very big economic benefit.
Description of drawings:
Accompanying drawing 1 is the structural representation that the mixing plant that expands the base pressure concrete placing is stirred in boring slip casting.
Accompanying drawing 2 is the construction schematic diagrames of holing according to method of the present invention.
Accompanying drawing 3 is to carry out slip casting according to method of the present invention to stir the construction schematic diagram that expands the end.
Accompanying drawing 4 is to carry out slip casting according to method of the present invention stir to expand the construction schematic diagram of regaining the upset drill bit behind the end.
Accompanying drawing 5 is to stop to stir the construction schematic diagram that expands the end after regaining the upset drill bit according to method of the present invention.
Accompanying drawing 6 is the construction schematic diagrames that carry out guncreting according to method of the present invention.
The specific embodiment of the present invention:
Embodiment 1:
Boring slip casting is stirred and is expanded base pressure concrete placing method, when rig creeps into, in drilling rod core pipe, inject cement paste by the grouting pipeline that is located on the bend pipe, when getting into projected depth, start the hydraulic jack that is arranged on unit head top, the anti-swiveling head pulling wire rope of twisting by the hydraulic cylinder piston rod lower end, drive convertible drill bit upset, after the diameter of upset exceeds drill pipe diameter and reaches designing requirement, the limit is carried on the rotation expansion base, when the upset drill bit stirs the sand layer of stake end and cement paste after the expansion end reaches design height, hydraulic jack is regained the upset drill bit and is stopped to stir the expansion end, and backmost the guncreting limit is carried and is drilled to stake.
Embodiment 2:
Expansion base pressure concrete placing method is stirred in embodiment 1 described boring slip casting, injects concrete when the end is expanded in stirring separately and stirs expansion end pile.
Embodiment 3:
Expansion base pressure concrete placing method is stirred in embodiment 1 or 2 described boring slip castings, injects cement paste when the end is expanded in stirring separately and stirs expansion end pile.
Embodiment 4:
Embodiment 3 described boring slip castings are stirred and are expanded base pressure concrete placing method, when on finishing the stirring rotation of the expansion end, carrying the drilling rod guncreting, and after carrying the drilling rod guncreting, in the sand layer, do not regain the upset drill bit, the screw thread pile body can be formed when carrying in the rotation, the bearing capacity of stake can be improved.
Embodiment 5:
Embodiment 4 described boring slip castings are stirred and are expanded base pressure concrete placing method, this method slip casting when dried operation pore-forming is stirred and is expanded the end and finish, propose to pour into a mould the pile concrete pile behind the drilling rod, when wet trade, all inject cement paste, after finishing the stirring expansion end, propose drilling rod, insert reinforcing cage and throw in the rubble pile.
Embodiment 6:
The mixing plant that expands the base pressure concrete placing is stirred in the boring slip casting that embodiment 1 described method is used, its composition comprises: unit head 1, connected drilling rod 5, be connected with hydraulic jack 6 and concrete pipeline 3 on the described unit head 1, be connected with grouting pipeline 4 on the described concrete pipeline 3, be connected with the anti-swiveling head 7 of twisting that the lower end connects wire rope 8 on the described hydraulic jack 6, be connected with the upset drill bit on the described wire rope, be welded with on the described drilling rod 5 and bore leaf 12, antitorque clamping plate 10 are equipped with in the end, lower end of described drilling rod 5, and described drilling rod bottom is bored on the leaf and is welded with reaction plate 11.Antitorque clamping plate 10 opposing rotary torsions have been protected upset drill bit 9 when the upset of upset drill bit 9, and the drill bit 9 that prevents to overturn fractures in the process of work, and it is opposite with upset drill bit 9 opening directions within 1 meter on upset drill bits 9 drill bits that reaction plate 11 is welded on drilling rod 5.
Embodiment 7:
The mixing plant that expands the base pressure concrete placing is stirred in embodiment 6 described boring slip castings, and described wire rope 8 rotates synchronously with described drilling rod 5.
Embodiment 8:
The mixing plant that expands the base pressure concrete placing is stirred in embodiment 7 or 6 described boring slip castings, and described wire rope 8 usefulness reinforcing bars or shaped steel replace.
Embodiment 9:
The mixing plant that expands the base pressure concrete placing is stirred in embodiment 8 described boring slip castings, and shape or triangle or trapezoidal are harrowed in being shaped as of the apex point of described upset drill bit 9.
Embodiment 10:
The mixing plant that expands the base pressure concrete placing is stirred in embodiment 9 described boring slip castings, and described wire rope 8 is contained in the outside or the inboard of described drilling rod 5 core pipes.

Claims (10)

1.一种钻孔注浆搅拌扩底压灌混凝土方法，其特征是：当钻机钻进时，通过设在弯管上的注浆管路向钻杆芯管内注入水泥浆，当钻到设计深度时启动设置在动力头上部的液压油缸，通过液压油缸活塞杆下端的防拧回转头拉动钢丝绳，带动翻转式钻头翻转，翻转的直径超出钻杆直径达到设计要求后，边旋转扩底边上提，当翻转钻头将桩端的砂土层与水泥浆搅拌扩底达到设计高度后，液压油缸收回翻转钻头停止搅拌扩底，最后边压灌混凝土边提钻成桩。1. A method of grouting, stirring, bottom expansion and pressure grouting for drilling, is characterized in that: when the drilling rig drills in, inject cement slurry into the core pipe of the drill pipe through the grouting pipeline arranged on the elbow, and when the drill reaches the design depth Start the hydraulic cylinder set on the upper part of the power head at the same time, pull the wire rope through the anti-twist rotary head at the lower end of the piston rod of the hydraulic cylinder, and drive the flip-type drill bit to turn over. Lifting, when the drill bit is turned over to stir the sand layer at the end of the pile and the cement slurry to reach the design height, the hydraulic cylinder retracts the turning bit to stop stirring and expanding the bottom, and finally the concrete is poured while lifting the drill to form a pile. 2.根据权利要求1所述的钻孔注浆搅拌扩底压灌混凝土方法，其特征是：搅拌扩底时单独注入混凝土进行搅拌成扩底成桩。2. The method of drilling, grouting, stirring, bottom-expanding and pressure-pouring concrete according to claim 1, characterized in that: when stirring and bottom-expanding, concrete is injected separately to be stirred into bottom-expanding piles. 3.根据权利要求1或2所述的钻孔注浆搅拌扩底压灌混凝土方法，其特征是：搅拌扩底时单独注入水泥浆进行搅拌扩底成桩。3. The method according to claim 1 or 2, characterized in that: when stirring and expanding the bottom, the cement slurry is injected separately for stirring and expanding the bottom to form piles. 4.根据权利要求3所述的钻孔注浆搅拌扩底压灌混凝土方法，其特征是：当完成扩底搅拌旋转上提钻杆压灌混凝土后，在砂土层中不收回翻转钻头，桩身形成螺纹。4. The drilling grouting method according to claim 3, characterized in that: after finishing the bottom expansion, stirring and rotating, lifting the drill pipe to press the concrete, the turning drill bit is not recovered in the sandy soil layer, The pile body is threaded. 5.根据权利要求4所述的钻孔注浆搅拌扩底压灌混凝土方法，其特征是：本方法在干作业成孔时注浆搅拌扩底完成，提出钻杆后浇注桩身混凝土成桩，在湿作业时全部注入水泥浆，在完成搅拌扩底后提出钻杆，插入钢筋笼投放碎石成桩。5. The method of drilling, grouting, agitating, bottom-expanding and pressure-pouring concrete according to claim 4 is characterized in that: the method completes the grouting, agitation and bottom-expansion when the dry operation is forming a hole, and pours the pile body concrete to form a pile after the drill pipe is proposed , All the cement slurry is injected during wet operation, and the drill pipe is lifted out after the stirring and bottom expansion is completed, and the reinforced cage is inserted into the crushed stone to form a pile. 6.一种权利要求1所述的方法使用的钻孔注浆搅拌扩底压灌混凝土的搅拌装置，其组成包括：动力头，与其连接的钻杆，其特征是：所述的动力头上连接有液压油缸和混凝土管路，所述的混凝土管路上连接有注浆管路，所述的液压油缸上连接有下端连接钢丝绳的防拧回转头，所述的钢丝绳上连接有翻转钻头，所述的钻杆上焊接有钻叶，所述的钻杆的下端端部装有抗扭夹板，所述的钻杆下端部钻叶上焊接有反作用板。6. A mixing device for drilling, grouting, stirring, bottom expansion, and pressure pouring concrete used in the method of claim 1, comprising: a power head and a drill pipe connected thereto, characterized in that: on the power head A hydraulic cylinder and a concrete pipeline are connected, the concrete pipeline is connected with a grouting pipeline, the hydraulic cylinder is connected with an anti-twist rotary head whose lower end is connected to a steel wire rope, and the steel wire rope is connected with a turning drill bit, The drill rod is welded with drill blades, the lower end of the drill rod is equipped with a torsion splint, and the drill blade at the lower end of the drill rod is welded with a reaction plate. 7.根据权利要求6所述的钻孔注浆搅拌扩底压灌混凝土的搅拌装置，其特征是：所述的钢丝绳与所述的钻杆同步转动。7. The stirring device for drilling, grouting, stirring, bottom expansion and pressure pouring concrete according to claim 6, characterized in that: the steel wire rope rotates synchronously with the drill pipe. 8.根据权利要求7或6所述的钻孔注浆搅拌扩底压灌混凝土的搅拌装置，其特征是：所述的钢丝绳用钢筋或型钢代替。8. The stirring device for drilling, grouting, stirring and pouring concrete for bottom expansion and pressure pouring according to claim 7 or 6, characterized in that: the steel wire rope is replaced by steel bar or section steel. 9.根据权利要求8所述的钻孔注浆搅拌扩底压灌混凝土的搅拌装置，其特征是：所述的翻转钻头的钻尖的形状为耙形或三角形或梯形。9. The stirring device for drilling, grouting, stirring, bottom expansion and pressure pouring concrete according to claim 8, characterized in that: the shape of the tip of the turning drill bit is a rake shape, a triangle or a trapezoid. 10.根据权利要求9所述的钻孔注浆搅拌扩底压灌混凝土的搅拌装置，其特征是：所述的钢丝绳装在所述的钻杆芯管的外侧或内侧。10. The stirring device for drilling, grouting, stirring, expanding and pressing concrete according to claim 9, characterized in that: said steel wire rope is mounted on the outside or inside of said drill pipe core pipe.
CNB2005100103564A 2005-09-21 2005-09-21 Drilling grouting mixing method and device for bottom expansion and pressure grouting concrete Expired - Fee Related CN100558990C (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102587372A (en) * 2012-02-27 2012-07-18 侯隆飙 Construction method for burying pile by under reaming and grouting

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CN101581205B (en) * 2009-06-20 2012-10-31 吕光 Self-controlled mine surface grout injection system
CN104234042A (en) * 2014-07-24 2014-12-24 王继忠 Concrete pile forming device and construction method thereof
CN104832094B (en) * 2015-05-08 2017-12-01 黑龙江中古建筑节能科技股份有限公司 Long auger base expanding and base expanding complexes and expanding method
CN105951751B (en) * 2016-05-09 2018-10-26 江苏鸿基节能新技术股份有限公司 A kind of triplet vertical member constructing device, assembly and construction method
CN106284317B (en) * 2016-08-31 2018-07-03 浙江南湖建设有限公司 A kind of building pile foundation construction method
CN108162192B (en) * 2017-12-29 2024-07-30 长沙伟诺汽车制造有限公司 Multifunctional piling car
CN108505954B (en) * 2018-05-11 2023-08-04 安徽华景建设有限公司 Pressure-adjustable directional grouting double-sleeve drill rod and construction method thereof
CN111535301B (en) * 2020-05-07 2021-08-10 江西中恒地下空间科技有限公司 Construction method of long spiral drill hole pressure-cast concrete club-footed pile
CN114753771A (en) * 2022-04-13 2022-07-15 江西联保工程咨询有限公司 Precession type pile tip capable of being automatically retracted and expanded and reusable full-length drill rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102587372A (en) * 2012-02-27 2012-07-18 侯隆飙 Construction method for burying pile by under reaming and grouting

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