CN100485156C - Multiple shaft drilling machine and its construction method - Google Patents

Multiple shaft drilling machine and its construction method Download PDF

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Publication number
CN100485156C
CN100485156C CN 200410083913 CN200410083913A CN100485156C CN 100485156 C CN100485156 C CN 100485156C CN 200410083913 CN200410083913 CN 200410083913 CN 200410083913 A CN200410083913 A CN 200410083913A CN 100485156 C CN100485156 C CN 100485156C
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drill
cutting
multi
construction
wall
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CN 200410083913
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CN1587631A (en
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钱奂云
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湖南山河智能机械股份有限公司
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Abstract

本发明涉及一种在土木建筑等工程中钻削地层、构筑等厚地下连续墙的多轴钻机及其施工方法;该多轴钻机主要包括:可在地面上走行的支撑机,含有机架、驱动装置、复数出力轴的钻机动力头,由一组钻杆、联轴器、联轴座和导向装置构成的钻具;其特征在于:所述钻具的一组钻杆上还设置有复数的滚动切削装置,该滚动切削装置是由支座、心轴和含有多数切削刀头的切削滚轮构成的,其滚动切削原理合理、结构简单、加工制造成本低、维修方便;使用该多轴钻机构筑的地下连续墙体厚度相等、强度均匀、防渗性能好、质量可靠、施工工艺简单、施工效率高。 The present invention relates to a multi-shaft drilling rig and its construction method of formation in the civil engineering and construction, and the like constructing the underground continuous wall thickness; the multi-shaft drilling machine including: a support unit to go on the ground in rows, comprising a rack, drive means, a plurality of drill head of the output shaft, constituted by a set of drill pipe, coupling means coupling the seat and the drill guide; wherein: there is further provided a set of the plurality of drill pipe of the drill rolling cutting means, the cutting means is a rolling bearing, the spindle and the cutting roller comprising cutting bit configuration of most, rolling cutting principle reasonable, simple structure, low manufacturing cost, easy maintenance; using the multi-shaft drilling rig constructing diaphragm walls of equal thickness, uniform strength, seepage performance, reliable, simple construction technology, construction and high efficiency.

Description

多轴钻才几及其施工方法 Only a few multi-axis drilling and construction method

技术领域本发明涉及一种在土木建筑等工程中钻削地层、构筑等厚地下连续墙的多轴钻机及其施工方法。 Technical Field The present invention relates to a drilling formation in the civil engineering construction, multi-axis drilling machine and other construction methods constructing underground continuous wall thickness.

背景技术目前,为人们所公知的技术之一,是一种使用多轴钻机构筑 BACKGROUND At present, it is one of the techniques known, is constructed using a multi-axis drilling rig

柱列式地下连续墙的技术:它是由专用的多轴钻机,驱动一组钻杆,分段钻进地层至一定深度后提升回地面,在一组钻杆钻进或提升的过程中,可从钻头端部向土壤中注入水泥浆,与被钻头钻松散的土壤混合搅拌,构筑成一段水泥土 The column set diaphragm wall technique: the ascent back after it was ground by a dedicated multi-axis drilling machine, a set of driving drill, drilling the formation to a depth segments, drilling or lifting a set of drill pipe, It may be injected from an end portion of the drill into the soil slurry, mixed with the drill bit loose soil stirring, constructed as a section of soil cement

墙体;然后再进行下一段水泥土墙体的施工,并使相邻的两段墙体彼此有一定 Wall; then the construction period under the soil cement wall, and two adjacent walls have a certain one another

的重合搭接;重复上述施工,即可构筑成一条地下水泥土墙体;在水泥土墙体固化之前,可以插入型钢来提高墙体的强度,水泥土墙体固化后,便造成了一条柱列式的地下连续墙。 Coincident overlapping; repeating the above construction, dirt can build into an underground wall; soil cement wall prior to curing, it can be inserted into the wall of the steel to increase strength, after curing soil cement wall, resulting in a column the column will be type of diaphragm wall.

使用上述多轴钻机构筑柱列式地下连续墙的技术存在的主要缺点是:造成的墙体是非等厚、呈葫芦串形状的(参见图6),厚度不一,强度不均匀;特别是作为防渗墙使用时,墙体的尖角处容易发生渗漏水现象;而且插入型钢的排列和数量也受到制约。 Constructed using the multi-axis drilling machine main drawback column column diaphragm wall technique are: non-uniform thickness due to the wall, as a string gourd shape (see FIG. 6), of varying thickness, uneven strength; in particular as when using cutoff wall, the wall is likely to occur at sharp corners water leakage; and insert arrangement and the number of steel is also restricted.

为克服上述技术的缺点,日本专利(特开平6-235219 )公开了一种多轴钻机,其特点是在钻杆和与其轴线垂直的旋转轴上设置了一对相互啮合的螺旋齿轮,在旋转轴上还设有一个切削刀盘;当钻杆旋转时,通过螺旋齿轮传递钻杆的动力,由旋转轴带动切削刀盘旋转,可削平柱列式连续墙体的尖角部分,使墙体厚度一致。 To overcome these technical drawbacks, Japanese Patent (JP-6-235219) discloses a multi-axis drilling machine, characterized by a rotating shaft perpendicular to its axis and the drill is provided one pair of helical gears meshing with each other, the rotation There is also a shaft cutter disks; when the drill pipe is rotated, power is transmitted via the helical gear drill rod, driven by a rotary shaft of the cutting disk rotates, the flattened portion of the post-row angular continuous wall, so that the wall uniform thickness. 但这一技术仍然存在如下不足和缺点: However, this technology is still insufficient and the following disadvantages:

1、 采用螺旋齿轮传动,需用滚动轴承支撑、并需要润滑和密封等,结构复杂,加工制造成本高。 1, spiral gear, bearing support required, and the need for lubrication and sealing, complex structure and high manufacturing costs.

2、 当钻杆在地下钻削时,密封件易磨损,泥水土砂侵入齿轮传动部位后容易造成传动装置损坏,影响正常施工,维护修理工作量大。 2, when drilling in the ground the drill pipe, seal wear, mud earth and sand invades the gear portion is likely to cause damage to the transmission, affecting the normal construction, maintenance and repair workload.

3、 由于螺旋齿轮传动结构复杂占有空间大,当钻杆在地下钻削时,该部位阻碍土砂流动,增加钻削时的阻力,使工作效率降低。 3, due to the complex structure of the helical gearing large occupied space, the drill pipe when drilling in the ground, the earth and sand flow obstruction site, increased resistance during drilling, so that reduced efficiency.

发明内容本发明的目的在于提供一种能构筑等厚地下连续墙的多轴钻机及其施工方法;这种多轴钻机构筑等厚墙体的切削装置结构简单、制造成本低、维修方i^更;其施工工艺简单、施工质量好、效率高。 Object of the present invention to provide a multi-axis drilling machine construction and method capable of constructing an underground continuous wall thickness and the like; simply cutting apparatus constructed like structure of such a multi-axis drilling machine wall thickness, low production cost, maintenance party i ^ more; its construction process is simple, the construction of good quality and high efficiency. 本发明的目的是由下述技术方案实现的: 一种多轴钻机,主要包括:支撑机、钻机动力头和钻具。 Object of the present invention are achieved by the following technical solutions: A multi-shaft drilling machine, including: a support machine, drill and drill head. 上述支撑机主要由可在地面上走行的底座,设置在底座上的立柱、巻扬机组、操作室和牵引钢丝绳构成。 The support column is mainly composed of a base may be traveling on the ground is provided on the base, Volume Yang units, operating rooms, and a traction rope configuration.

上述钻机动力头主要由可移动的机架,设置于机架之上并含有原动机、减速机和复数出力轴的驱动装置构成;钻机动力头通过牵引钢丝绳悬挂于支撑机的立柱上,并可以上下移动。 The above-described drill head is mainly composed of the movable frame, disposed on the frame and comprising a prime mover, a plurality of drive gear and the output shaft configuration; drill head by pulling on the rope suspension upright support machines, and may be Moving up and down.

上述钻具主要由一组钻杆、联轴器、联轴座和导向装置构成;所述钻杆由空心的接杆、空心的螺旋搅拌杆和带有喷射口的钻头组成,钻杆借助联轴器与钻才几动力头的出力轴相联:4妻。 By a group mainly above the drill rod, the coupling, the coupling means and the guide seat configuration; said connecting rod by a hollow drill pipe, a hollow screw rod and a drill bit with stirring a composition injection port, by means of drill pipe joint output shaft with the drilling head only a few associated power: 4 wife.

其特征在于:所述钻具的一组钻杆上还设置有复数的滚动切削装置,滚动切削装置是由固定在联轴座上的支座、被支座支持的心轴和可转动地置于心轴上的切削滚轮构成的;切削滚轮上设置有多数的切削刀头。 Wherein: a further set of settings on the drill rod has a plurality of rolling cutting means, the cutting means is a rolling bearing fixed in the coupling seat, the mandrel holder is rotatably supported and opposed the cutting wheel composed of a mandrel; a majority of the cutting tip is provided on the cutting roller.

使用上述多轴钻机构筑等厚地下连续墙的施工方法,具有如下步骤: 多轴钻机走行到施工位置,钻机动力头驱动钻具的钻杆旋转,并向下钻削地层,滚动切削装置也随之向下移动,切削滚轮将钻头钻削后的墙体残余的尖角部分削平,当达到预定深度后,钻机动力头和钻具提升回地面;在上述钻进和提升过程中,通过空心钻杆从钻头端部向土壤中注入水泥浆,与被钻头钻松散的土壤混合搅拌后,构筑成一段水泥土墙体;多轴钻机移动位置,进行下一段水泥土墙体的施工,并使相邻的两段墙体彼此有一定的重合搭接;重复以上步骤,即可构筑成一条等厚的地下水泥土墙体,在水泥土墙体固化之前,可插入型钢来提高墙体的强度,水泥土墙体固化后,便造成了一条等厚的地下连续墙(参见图7)。 Construction method using the above multi-axis drilling machine constructing underground continuous wall thickness and the like, comprising the following steps: construction of the multi-axis drilling machine to the traveling position, drill pipe rotation driving drill head, and to drilling under formation, but also with a rolling cutting means the downward movement of the cutting roller the remaining wall portion of the rear corners of the drilling bit flattened, when the predetermined depth, the drill string and drill head lifting the back ground; in the drilling process and enhance, through the hollow drill the drill rod is injected from the end portion of slurry into the soil, mixed with the drill bit loose soil stirring, constructed as a soil cement wall section; multiaxial movement position of the rig, the construction period of the soil cement wall, and with two adjacent walls have overlaps overlapping one another; repeat the above steps, and the like to build into a wall thickness of soil groundwater, soil cement wall prior to curing, it can be inserted into the steel to increase the strength of the wall, cement after curing soil walls, it creates a thick diaphragm wall and so on (see Figure 7).

滚动切削装置的滚动切削是按如下步骤和过程实现的:当滚动切削装置随钻杆向下移动时,墙体残余尖角部分对其产生一个反力F,由于切削滚轮中心0 与反力F之间有一偏心距离e,从而对切削滚轮构成了一个转动力矩T-Fxe, 在滚动切削装置向下移动及转动力矩T的作用下切削滚轮旋转,实现对墙体残余尖角部分的切削。 Cutting means cutting the rolling roll is achieved as follows and Process: When scrolling down with the movement of the drill pipe cutting apparatus, the residual wall angular portion of its produce a counter force F, since the cutting wheel and the center of the reaction force F 0 there is an eccentric distance e between the rollers so as to form a cutting rotational torque T-Fxe, the cutting roller rotated by the downward movement of the cutting means and the scroll rotating torque T to achieve cutting of the wall of the residual angular portion.

本发明的多轴钻机及其施工方法,有如下积极效果及优点: Construction of multi-axis drilling machine and method of the present invention, the following advantages and positive effects:

1、按照本发明,构筑等厚地下连续墙的施工工艺简单、墙体厚度相等、强 1, according to the construction of the underground continuous wall thickness of the process of the present invention, is simple to build, etc., the wall thickness is equal to, strong

4度均匀,质量可靠,防渗性能好,插入型钢的数量及排列不受制约。 4 uniform, reliable, good barrier properties, the number and arrangement of the steel insert is not restricted.

2、 按照本发明,构筑等厚墙体的滚动切削装置的滚动切削原理合理、结构简单、加工制造成本低、维修方便。 Cutting scroll 2, according to the present invention, the wall thickness rolling constructed like cutting apparatus reasonable principle, simple structure, low manufacturing cost, easy maintenance.

3、 按照本发明,滚动切削装置结构简单体积小、占有空间少,当钻杆在地 3, according to the present invention, rolling cutting apparatus of simple structure of small, less occupied space, on the ground when the drill pipe

下钻削时,该部位产生的阻力小,土^H危动顺畅,施工效率高。 When the drilling resistance of the resulting small portions, earth moving smoothly ^ H-risk, high-efficiency construction.

附图说明: BRIEF DESCRIPTION OF:

图1是本发明的实施例1:多轴钻机A的主视图。 Figure 1 is an embodiment of the present invention: A front view of the multi-axis drilling machine.

图2是图1所示多轴钻机A的侧视图.。 FIG 2 is a side view of a multi-axis drilling machine A shown in FIG .. 1

图3a是图1所示多轴钻机A的滚动切削装置30的主视图。 Figure 3a is a front view of a rolling cutting means 30. A multi-shaft drilling rig shown in Figure 1.

图3b是图3a滚动切削装置30的俯视图。 3b is a top view of FIG. 3a rolling cutting apparatus 30 in FIG.

图3c是图3a滚动切削装置30的侧视图。 Figure 3c is a side view of FIG. 3a rolling cutting means 30.

图4a、图4b、图4c、图4d、图4e和图4f是本发明的实施例2:使用多轴钻机A构筑等厚地下连续墙的施工方法步骤的示意图。 Figures 4a, 4b, 4c, the FIG. 4d, 4e and 4f FIGS embodiment of the present invention are 2: A schematic diagram of a multi-axis drilling machine constructing underground continuous wall thickness and the like of the used construction method steps.

图5a和图5b是图3a所示滚动切削装置30的滚动切削原理的示意图。 Figures 5a and 5b are schematic in FIG. 3a rolling cutting principle of a rolling cutting means 30. 图6是应用现有技术构筑的柱列式地下连续墙体的横截面形状图。 FIG 6 is a column-row subterranean applications prior art continuous wall constructed cross-sectional shape in FIG. 图7是应用本发明技术方案构筑的等厚地下连续墙体的横截面形状图。 FIG 7 is a technical solution of the present invention is constructed by thick diaphragm walls like cross-sectional shape in FIG. 具体实施方式: Detailed ways:

下面结合附图及实施例,对本发明作进一步说明。 In conjunction with the accompanying drawings and the following embodiments, the present invention will be further described.

实施例1:多轴钻才几A Example 1: A multi-shaft drilling only a few

参照图1、图2、图3a、图3b和图3c。 Referring to FIG. 1, FIG. 2, FIG. 3a, 3b and 3c.

一种多轴钻机A,主要包括:支撑机B、钻机动力头C和钻具D。 A polyaxial drill A, including: a support unit B, C drill head and drill D. 上述支撑机B主要由可在地面GL上走行的底座1,设置在底座1上垂直于地面GL的立柱2,巻扬^L组3,操:作室4和钢丝绳5构成;所述立柱2上还设有导向滑轨2a、顶部滑轮组2b、支撑杆2c;所述巻扬机组3可驱动牵引钢丝绳5。 The support unit B mainly composed of a base may be on the ground surface GL Traveling 1, is provided on the base 1 perpendicular to the column ground surface GL 2, Volume Y ^ L group 3, the operation: for chamber 4 and the wire rope 5 constituted; the pillar 2 also provided on the guide rails 2a, upper block 2b, the support rod 2C; Volume of the unit 3 Y 5 can drive the traction rope.

上述钻机动力头C主要由机架6和置于机架6上的驱动装置7构成;所述机架6上还设置有导向滑槽6a和滑轮组6b,机架6借助旋绕在滑轮组6b上的钢丝绳5悬挂于顶部滑轮组2b之下,并借助导向滑槽6a嵌在立柱2的导向滑轨2a上,在巻扬机3驱动的钢丝绳5的牵引下,机架6和驱动装置7'可沿立柱2上下移动;所述驱动装置7主要由固定在机架6上的主减速机8、原动机9、 设置于主减速机8上的行星减速机10、可导入液体的旋转接头15以及主减速机8的多个出力轴16构成;在原动机9的驱动下,经行星减速机10和主减速机8减速,相邻的两个出力轴16可按相反方向旋转。 The above-described drill head 6 and C mainly by the rack drive means disposed on the frame 67 constitutes; the frame 6 is also provided with a slide guide pulleys 6a and 6b, the frame 6 by means of the winding 6b of the upper block 5 is suspended below the top rope pulleys 2B, and by means of the guide chute 6a fitted on the guide rail 2a of the column 2, the traction drive unit 3 Volume Y rope 5, frame 6 and driving means 7 'along column 2 moving up and down; the drive means 7 is mainly composed of the main frame 6 is fixed to the gear 8, the prime mover 9, provided in the main planetary gear reducer 10 on 8, the liquid may be introduced into the rotary joint 15 and the main a plurality of output shaft 16 of the reduction gear 8 configuration; driven by a prime mover 9, the planetary gear 10 and the main reduction gear 8, two adjacent output shaft 16 can rotate in the opposite direction.

上述钻具D是可以根据使用需要进行组合搭配构成的一种组合式钻具;钻具D主要包括:由空心接杆20a、空心螺旋搅拌杆20b、带有喷射口20d的钻头20c组成的钻杆20、联轴器21、联轴座22和导向装置23;复数的钻杆20借助联轴座22可旋转地平行排列成一组,并借助联轴器21与钻机动力头C的出力轴16相联d妻。 D is the above-described need for drilling a combined composition used in accordance with the configuration of the tool; D drilling tool including: a hollow extension bar 20a, the helical hollow stirring rods 20b, 20d with the injection port 20c composed of drill bit rod 20, coupling 21, the coupling seat 22 and the guide means 23; a plurality of drill pipe 20 by means of the coupling seat 22 may be a set of parallel arranged rotatably, and the coupling means 21 and the output shaft 16 of the drill head C d associative wife.

所述钻具D的一组钻杆20上还设置有滚动切削装置30,滚动切削装置30 主要是由固定在联轴座22上的支座31、被支座31支持的心轴32和可转动地置于心轴32之上的切削滚轮33构成;切削滚轮上设置有多数的切削刀头33a。 A group D of the drill rod 20 is also provided with a rolling cutting means 30, the cutting device 30 is mainly rolling mandrel fixed on the coupling seat 22 of the support 31, supported by bearings 32 and 31 rotatably placed on the mandrel 32 constitutes a cutting roller 33; a majority of the cutting tip is provided on the cutting roller 33a. 在钻机动力头C的出力轴16的驱动下,相邻的两根钻杆2 0可按相反方向旋转,并可上下移动钻削地层,滚动切削装置30在随钻具D向下移动的同时, 切削滚轮3 3可进行旋转切削。 Driven by the output shaft C of the drill head 16, two adjacent drill pipe 20 may be rotated in an opposite direction, and moves up and down formation drilling, rolling cutting apparatus 30 is moved downwardly simultaneously with the drill D cutting roller 33 can be rotated cut.

实施例2:使用多轴钻机A构筑等厚地下连续墙的施工方法。 Example 2: Use a thick underground continuous wall construction method of constructing a multi-axis drilling machine A and the like. 参照图4a、图4b、图4c、图4d、图4e、图4f、图5a和图5b。 Referring to Figures 4a, 4b, 4c, the FIG. 4d, 4e, the FIG. 4f, 5a and Figure 5b. The 多轴钻机A走行到施工位置,钻机动力头C驱动钻具D的钻杆20按设定方向旋转,并向下钻削地层,滚动切削装置30随钻具D向下移动,切削滚轮33 随之旋转,将钻头20c钻削地层后的残余的尖角部E削平,当达到预定深度后, 钻机动力头C与钻具D提升回初始位置, 一组钻削完成;在上述钻进和提升的过程中,经旋转接头15导入水泥浆,通过空心接杆20a、空心螺旋搅拌杆20b、 从钻头20c的端部向土:t裏中注入水泥浆,与一皮钻头钻杠、散的土:t裏混合搅拌,构筑成一段水泥土墙体;多轴钻机A移动位置,进行下一段水泥土墙体的施工, 并使相邻的两段墙体彼此有一定的重合搭接;重复以上步骤,即可形成一条等厚的地下水泥土墙体,在水泥土墙体固化之前,可插入型钢(图中未示出)来提高墙体的强度,水泥土墙体固化后,便造成了一条等厚的地下连续墙。 A multi-axis drilling machine construction to the traveling position, the drive rod drill head C of the drill D by setting the direction of rotation 20, and the formation drilling, rolling cutting apparatus 30 is moved downward along with the drill D, the cutting wheel 33 with the rotation of the drill bit after drilling the formation of residual cusp 20c E flattened portion, when reaching the predetermined depth, the drill string and drill head C D back to the initial lifting position, a complete set of drilling; in the drilling and lifting process, the rotary joint 15 introducing grout, through the hollow connecting rod 20a, the hollow spiral stirring rod 20b, the end bit 20c of the soil: t in injecting cement slurry, with a skin drill bit bars, loose soil : t in mixing, constructed as a soil cement wall section; rig a multiaxial movement position, the construction period of the soil cement wall, and two adjacent walls overlapping each other with a certain overlap; repeat step, and the like can be formed a wall thickness of soil groundwater, soil cement wall prior to curing, may be inserted into the beam (not shown) to improve the strength of the wall, the wall of soil cement after curing, will result in a and other thick diaphragm wall.

滚动切削装置30的滚动切削原理及步骤如下:当滚动切削装置30在钻杆20的钻进力Q的作用下随之移动时,钻头20c钻削土层后的残余尖角部E对切削滚轮33产生垂直反力F和水平反力P,且F〉P,由于切削滚轮33的旋转中心0与垂直反力F之间有一偏心距离e,从而对切削滚轮33构成了一个转动力矩T:Fxe,在滚动切削装置30向下移动及转动力矩T的作用下,切削滚轮33 旋转切削,将残余尖角部E削平(参见图5a和图5b );两侧的水平反力P则相 Rolling cutting means cutting the rolling step 30 and the principle is as follows: when the scroll cutting apparatus 30 is moved along the drill rod in the drilling action of the force Q of 20, after drilling the drill 20c soil residue E sharp portion of the cutting wheel 33 a vertical reaction force F and the horizontal reaction force P, and F> P, since between the cutting wheel rotation center 0 and the vertical reaction force F 33 has an eccentric distance e, so that the cutting roller 33 constitutes a turning moment T: Fxe , under the effect of rolling and cutting device 30 is moved downward rotational torque T of the rotary cutting wheel 33 cutting, the residue E flattened pointed portion (see FIGS. 5a and FIG. 5B); a reaction force level on both sides of the phase P

6互抵消。 6 cancel each other.

结合上述实施例,对本发明进行了说明,但通过对钻机动力头或钻具的结构和组合方式作一些适当的调整,就可以在本发明的范围之内,派生出各种不同的多轴钻机及其相应的等厚地下连续墙的施工方法。 Connection with the above embodiments, the present invention has been described, but by the structure and combination drill head or drill to make some appropriate adjustments can be within the scope of the present invention, various multi-axis derived rig construction methods and the like corresponding underground continuous wall thickness.

例如:多轴钻机的钻杆可以是三根一组,也可以是二根、四根、五根等为 For example: a multi-axis drilling machine a drill pipe may be three groups may be two, four, five as the

一组,滚动切削装置的数量也可以根据需要配置。 A group, the number of rolling cutting means may be arranged as needed.

Claims (2)

1、一种多轴钻机,主要包括:支撑机、钻机动力头和钻具;所述的支撑机主要由可在地面上走行的底座,设置在底座上的立柱、卷扬机组、操作室和牵引钢丝绳构成;钻机动力头主要由可移动的机架,设置于机架之上并含有原动机、减速机和复数出力轴的驱动装置构成;钻具主要由一组钻杆、联轴器、联轴座和导向装置构成;其特征在于:所述钻具的一组钻杆上还设置有复数的滚动切削装置,滚动切削装置是由固定在联轴座上的支座、被支座支持的心轴和可转动地置于心轴上的切削滚轮构成的;切削滚轮上设置有多数的切削刀头。 A multi-axis drilling machine, including: a support machine, drill and drill head; the base can be supported mainly by the traveling is on the ground, the pillar is provided on the base, group hoist, and traction operation chamber rope configuration; drill head is mainly composed of the movable frame, disposed on the frame and comprising a prime mover, a plurality of drive gear and the output shaft configuration; drill mainly by a set of drill pipe, couplings, biphenyl and the guide shaft holder means configured; characterized in that: there is further provided a plurality of cutting means on a scroll set of drill pipe of the drill, the cutting means is a rolling bearing fixed in the coupling seat, the seat support the mandrel and the mandrel is rotatably disposed cutting rollers consisting of; a majority of the cutting tip is provided on the cutting roller.
2、 使用权利要求1所述的多轴钻机的施工方法,其特征在于,该施工方法具有如下步骤:多轴钻机走行到施工位置,钻机动力头驱动钻具的钻杆旋转, 并向下钻削地层,滚动切削装置也随之向下移动,切削滚轮将钻头钻削后的墙体残余的尖角部分削平,当达到预定深度后,钻机动力头和钻具提升回地面; 在上述钻进和l^升过程中,通过空心钻杆从钻头端部向土壤中注入水泥浆,与被钻头钻松散的土壤混合搅拌后,构筑成一段水泥土墙体;多轴钻机移动位置, 进行下一段水泥土墙体的施工,并使相邻的两段墙体彼此有一定的重合搭接; 重复以上步骤,即可构筑成一条等厚的地下水泥土墙体,在水泥土墙体固化之前,可插入型钢来提高墙体的强度,水泥土墙体固化后,便造成了一条等厚的地下连续墙。 2, according to a construction method using the multi-axis drilling machine as claimed in claim, characterized in that the construction method comprising the following steps: construction of the multi-axis drilling machine to the traveling position, the drill pipe rotary drill head driving drill, and the drill cut formation, rolling cutting means is also moved downwardly, the cutting wheel angular portion of the rear wall of the residual drilling bit flattened, when the predetermined depth, the drill string and drill head lifting the back ground; drilling in the above and l ^ lifting process, is injected through the hollow drill bit from the drill pipe to the end portion of the soil slurry, after mixing with the drill bit loose soil stirring, constructed as a soil cement wall section; multiaxial movement position of the rig, for a period of at construction of soil cement wall, and two adjacent walls overlapping each other with a certain overlap; repeat the above steps, and the like to build into a wall thickness of soil groundwater, soil cement wall before cured, insert steel to increase the strength of the wall, soil cement wall after curing, will cause a constant thickness of the diaphragm wall.
CN 200410083913 2004-10-13 2004-10-13 Multiple shaft drilling machine and its construction method CN100485156C (en)

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CN100465383C (en) 2006-06-26 2009-03-04 河海大学 A wall forming method of a long screw drilling wall forming machine with multiple head and small diameter
CN101769126B (en) 2009-01-04 2013-08-07 上海金泰工程机械有限公司 Hydraulic middle-drive retractable multi-spindle drilling and stirring device
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CN102155156B (en) * 2011-01-24 2012-11-28 重庆勤牛工程机械有限责任公司 High-speed hydraulic drilling machine
CN102619222B (en) * 2012-04-28 2015-08-26 温州上和建设有限公司 Multi-shaft stirring stake rig
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