WO2014114090A1 - Engineering drilling rig capable of super-fluid concrete pressure-grouted pile construction in competent bed - Google Patents
Engineering drilling rig capable of super-fluid concrete pressure-grouted pile construction in competent bed Download PDFInfo
- Publication number
- WO2014114090A1 WO2014114090A1 PCT/CN2013/083263 CN2013083263W WO2014114090A1 WO 2014114090 A1 WO2014114090 A1 WO 2014114090A1 CN 2013083263 W CN2013083263 W CN 2013083263W WO 2014114090 A1 WO2014114090 A1 WO 2014114090A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hole hammer
- drilling rig
- hammer
- rotary joint
- drill pipe
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 title abstract description 9
- 239000011435 rock Substances 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000012634 fragment Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000009189 diving Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/003—Drilling with mechanical conveying means
- E21B7/005—Drilling with mechanical conveying means with helical conveying means
Definitions
- the utility model belongs to the field of engineering machinery, in particular to an engineering drilling rig capable of super-flow concrete pressure-filled pile construction in a hard rock layer.
- Super-fluid concrete pressure-filled pile construction is a way of concrete pouring pile construction. It is carried out with a special long auger.
- the drilling tool consists of high-pressure rotary joints, long auger drills and drill bits. The inside of the joint, the long auger drill rod and the drill bit form a complete cavity from top to bottom as the super-fluid concrete channel.
- the power head drives the long auger drill pipe and the drill hole to the design depth and then stops, then drills and passes the hollow drill.
- the rod is filled with super-flow concrete, and then the steel cage is pressed into the super-flow concrete and piled into one pile at a time. It has the advantages of fast construction speed, low cost and no pollution.
- the disadvantages of this type of rig are: The drill bit is drilled only by rotary cutting and cannot penetrate into hard rock formations. Therefore, the pile end bearing capacity of the hard rock layer cannot be effectively utilized, and it is not suitable for the construction of the backfill layer with more hard rock layers and large stones.
- the purpose of the utility model is to provide an engineering drilling rig capable of constructing a super-flow concrete pressure-filled pile in a hard rock layer, which can be constructed in a hard rock layer and a large rock layer.
- the purpose of the utility model is achieved as follows: including the rig body and its accessory equipment, the rig tower, the drill pipe power head, the high pressure rotary joint, the long auger drill rod, the drill rod power head is placed on the rig tower, rolling The rotary joint is placed on the power head of the drill pipe, and the upper part of the long auger drill pipe is connected with the rolling rotary joint, and the utility model is characterized in that: a diving hole hammer is connected to the lower part of the long auger drill pipe, and the rotary joint and the long auger drill pipe are used for diving.
- the hole hammer constitutes a set of drilling tools;
- the main body of the rolling rotary joint is composed of two inner and outer circular pipe walls, and the inner and outer two circular pipe walls form two inner and outer cavities;
- the long auger drill rod is composed of an inner tube and an outer tube and a spiral blade;
- the edge of the hammer of the latent hole hammer is provided with a lumen passing from the top end of the hammer body to the bottom end of the hammer body, and the top end of the down-the-hole hammer has two inner and outer circular tube wall joints, respectively, and the inner tube of the long auger drill rod above.
- the inner tube and the outer tube of the long auger shaft are respectively connected with the inner and outer circular tubes of the high-pressure rotary joint; respectively, and the upper and outer cavities of the high-pressure rotary joint are respectively connected.
- the drill rod power head drives the long auger rod to press and rotate, and the high-pressure wind supplies air to the down-the-hole hammer through a lumen in the drilling tool, and the down-the-hole hammer vibrates downward to drill, and the underlying soil and rock are broken into pieces and The debris is blown out to the spiral blade at the top of the down-the-hole hammer, and the spiral blade rotates to discharge the debris.
- the down-the-hole hammer is drilled to the design elevation and stopped, the drill rod power head drives the long auger rod to be lifted, and the super-flow concrete is pressed into the hole through the other tube of the drilling tool.
- the down-the-hole hammer adopts the latent hole hammer design of the waterproof technology already available in the market to prevent the entry of impurities into the down-the-hole hammer when the air supply is stopped and the super-flow concrete is pressed.
- the engineering drilling machine there is a flap at the bottom of the cavity at the edge of the hammer of the down-the-hole hammer, which is closed when the down-the-hole hammer is rotated in the forward direction, and is opened when the down-the-hole hammer stops drilling and presses into the super-flow concrete.
- the utility model has the advantages that the construction drilling rig of the existing super-flow concrete pressure-filled pile has the following advantages: the high-pressure rotary joint, the long auger drill pipe and the down-the-hole hammer constitute two independent lumens, and can simultaneously transport the high-pressure wind and the super-flow.
- the drill bit in the drill is a down-the-hole hammer, and the down-the-hole hammer can be drilled into hard rock.
- One of the drills can transport high-pressure wind, supply a down-the-hole hammer as a power source for drilling, and dive holes.
- the debris formed by the hammer is blown out and discharged by the spiral blade; after the downhole hammer is drilled to the design elevation, the super fluid concrete can be poured into the borehole below the pile hammer by the other pipe in the drill.
- Figure 1 is a schematic view of the overall structure of the present invention
- Figure 2 is a schematic view showing the structure of the joint of the rolling rotary joint and the rolling rotary joint and the long auger drill rod;
- FIG. 3 is a schematic structural view of a connection portion of a down-the-hole hammer and a down-the-hole hammer and a long auger drill pipe; and
- FIG. 4 is a schematic view showing a construction process of the present invention. detailed description
- the drilling rig includes the drilling rig body and its auxiliary equipment 1, the rig tower 2, the drill pipe power head 3, the high pressure rotary joint 4, the long auger drill rod 5 and the spiral blade 13, and the down-the-hole hammer 6.
- the high-pressure rotary joint 4, the long auger drill rod 5, the spiral blade 13, and the down-the-hole hammer 6 together constitute a set of drilling tools.
- the drill pipe power head 3 is movable up and down along the drill tower 2, and the main body of the high-pressure rotary joint 4 is fixed on the drill pipe power head 3.
- the main body of the high-pressure rotary joint 4 has a circular tubular inner tube wall 8 and a circular tubular outer tube wall 7.
- the inner tube wall 8 and the outer tube wall 7 have a circular tubular inner tube wall 22 and a circular tubular outer tube wall 21, respectively, which are horizontally rotatable relative to the high-pressure rotary joint body and are used for connection with the top end of the long auger shaft 5.
- the inner and outer tube walls of the high-pressure rotary joint 4 form two cavities, and the upper portions of the two cavities respectively have a venting nozzle 10 and a super-fluid concrete injecting nozzle 9.
- the long auger drill rod 5 is composed of a circular inner tube 12 and a circular outer tube 11 and a spiral blade 13, and the inner tube 12 and the outer tube 11 of the long auger shaft 5 and the circular tubular inner wall 22 at the bottom of the high-pressure rotary joint, respectively.
- the circular tubular outer wall 21 is fixedly coupled and rotatable relative to the main body of the high-pressure swivel joint 4 in the horizontal direction.
- the bottom end of the long auger shaft 5 is connected to the down-the-hole hammer 6, and the hammer body edge of the down-the-hole hammer 6 is provided with a lumen 18 leading from the upper end of the hammer body to the lower end of the hammer body, and the upper end of the down-the-hole hammer has two round tubular shapes.
- the joint 17 and the round tubular outer joint 16 are respectively fixedly connected to the inner tube 12 and the outer tube 11 of the long auger shaft 5.
- the inner joint 17 and the outer joint 16 at the upper end of the down-the-hole hammer form two cavities which respectively communicate with the air inlet 19 of the down-the-hole hammer and the lumen 18 of the edge of the hammer.
- the cavities of the rolling rotary joint 4, the long auger shaft 5 and the down-the-hole hammer 6 in the engineering drilling machine are connected from top to bottom and penetrate to form two independent cavities.
- the drill pipe power head 3 drives the drill pipe 5 to press and rotate downward, and the rolling air is supplied to the air inlet port 19 of the down-the-hole hammer 6 through a pipe cavity in the drilling tool to power the down-the-hole hammer 6
- the down-the-hole hammer 6 is drilled downward, the underlying soil and rock are broken into chips and the debris is blown out to the lower end of the top spiral blade 13 of the down-the-hole hammer 6, and the spiral blade 13 rotates to discharge the debris.
- the down-the-hole hammer 6 is drilled to the design elevation and then stopped, the drill pipe power head 3 drives the drill pipe 5 to drive the down-the-hole hammer 6 to be lifted, and the super-flow concrete is pressed into the down-hole through another pipe of the drilling tool.
- the down-the-hole hammer 6 adopts the waterproof design already in the market to prevent the down-the-hole hammer 6 when the high-pressure air is stopped and the super-flow concrete is pressed. Enter impurities inside.
- the bottom of the cavity 18 at the edge of the hammer of the down-the-hole hammer 6 has a shutter 20 which is closed when the down-the-hole hammer 6 rotates in the forward direction, and the down-the-hole hammer 6 stops the vibration drilling and presses into the super-flow concrete. Open when.
- the construction process (see Figure 4) is the drilling of the A drilling machine; the B drilling machine is drilled to the bottom of the hole; the C drilling rod is lifted, and the concrete is poured into the hole; D is the reinforcing cage placed in the hole; E is the completed engineering pile.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Disclosed is an engineering drilling rig capable of super-fluid concrete pressure-grouted pile construction in a competent bed. The drilling rig comprises a drilling rig truck body and equipment (1) attached thereto, a drilling rig tower (2), a drill rod power head (3), a high-pressure rotating connector (4), a long auger stem (5), and a down-the-hole hammer (6). The high-pressure rotating connector (4), the long auger stem (5) and the down-the-hole hammer (6) form two independent pipe cavities from top to bottom. The drilling rig can both deliver high-pressure air and super-fluid concrete, the down-the-hole hammer (6) can drill into a competent rock, one pipe cavity in the drilling tool can deliver high-pressure air to the down-the-hole hammer (6) to provide power and blow away fragments to remove same from an auger flight (13), and the other pipe cavity in the drilling tool can pour concrete into a drill hole below the down-the-hole hammer (6).
Description
一种可以在坚硬岩层做超流态混凝土压灌桩施工的工程钻机 Engineering drilling rig capable of super fluid concrete pressure grouting pile construction in hard rock layer
技术领域 Technical field
本实用新型属于工程机械领域，具体地说是一种可以在坚硬岩层 做超流态混凝土压灌桩施工的工程钻机。 The utility model belongs to the field of engineering machinery, in particular to an engineering drilling rig capable of super-flow concrete pressure-filled pile construction in a hard rock layer.
背景技术 Background technique
混凝土灌注桩是目前应用比较广泛的桩基类型， 它单桩承载大， 桩身刚度强，多用于中高层以上建筑和支护体系，它的成桩方式有很 多种。 超流态混凝土压灌桩施工， 是混凝土灌注桩施工的一种方式， 是釆用特制长螺旋钻机进行的，这种钻机的钻具由高压回转接头、长 螺旋钻杆、钻头组成， 高压回转接头、长螺旋钻杆、钻头的内部组成 一个由上至下完整的空腔作为超流态混凝土通道，动力头带动长螺旋 钻杆和钻头孔至设计深度后停止，然后提钻并通过空心钻杆压灌超流 态混凝土，再在超流态混凝土中压入钢筋笼，一次成桩。它具有施工 速度快， 造价低、无污染等优点。这种钻机的缺点是： 钻头仅靠旋转 切削钻进，不能钻入坚硬的岩层。因此不能有效的利用坚硬岩层的桩 端承载力， 不适于在坚硬岩层和大块石较多的回填土层施工。 Concrete cast-in-situ piles are widely used in pile foundation types. They have large piles and strong pile stiffness. They are mostly used in construction and support systems above the middle and upper levels. There are many types of piles. Super-fluid concrete pressure-filled pile construction is a way of concrete pouring pile construction. It is carried out with a special long auger. The drilling tool consists of high-pressure rotary joints, long auger drills and drill bits. The inside of the joint, the long auger drill rod and the drill bit form a complete cavity from top to bottom as the super-fluid concrete channel. The power head drives the long auger drill pipe and the drill hole to the design depth and then stops, then drills and passes the hollow drill. The rod is filled with super-flow concrete, and then the steel cage is pressed into the super-flow concrete and piled into one pile at a time. It has the advantages of fast construction speed, low cost and no pollution. The disadvantages of this type of rig are: The drill bit is drilled only by rotary cutting and cannot penetrate into hard rock formations. Therefore, the pile end bearing capacity of the hard rock layer cannot be effectively utilized, and it is not suitable for the construction of the backfill layer with more hard rock layers and large stones.
发明内容 Summary of the invention
本实用新型的目的是提供一种能在坚硬岩层和大块石较多的土 层中施工的一种可以在坚硬岩层做超流态混凝土压灌桩施工的工程 钻机。 The purpose of the utility model is to provide an engineering drilling rig capable of constructing a super-flow concrete pressure-filled pile in a hard rock layer, which can be constructed in a hard rock layer and a large rock layer.
本实用新型的目的是这样实现的： 包括钻机车体及其附属设备， 钻机塔杆， 钻杆动力头， 高压回转接头， 长螺旋钻杆， 钻杆动力头置 于钻机塔杆上，髙压回转接头置于钻杆动力头上，长螺旋钻杆上部与 髙压回转接头连接，其特征是：在长螺旋钻杆下部连接有潜孔锤， 由 髙压回转接头，长螺旋钻杆，潜孔锤组成一套钻具；所述的髙压回转 接头的主体由内、外两个圆形管壁构成， 内、外两个圆形管壁形成两 个内、外空腔；所述的长螺旋钻杆由内管和外管及螺旋叶片构成；所
述的潜孔锤锤体边缘设有管腔由锤体顶端通到锤体底端，潜孔锤顶端 有内、外两个圆形管壁状接头，分别与上面长螺旋钻杆的内管和外管 连接固定； 长螺旋钻杆的内管和外管上部分别与高压回转接头的内、 外两个圆形管壁相连接；在高压回转接头的两个内、外空腔上部分别 连接有通风接管和超流态混泥土注入接管；所述的高压回转接头、长 螺旋钻杆和潜孔锤由上至下组成两个独立的管腔。钻杆动力头驱动长 螺旋钻杆下压并旋转，高压风通过钻具内一条管腔供风给潜孔锤，潜 孔锤向下震动钻进，将下面的土和岩石击成碎屑并将碎屑吹出到潜孔 锤顶端螺旋叶片处，螺旋叶片旋转将碎屑排出。 所述的工程钻机中， 潜孔锤钻至设计标高后停止，钻杆动力头驱动长螺旋钻杆上提，超流 态混凝土通过钻具另一条管腔压入孔内。所述的工程钻机中，潜孔锤 采用市场已经有的防水技术的潜孔锤设计，以防止停止供风、压入超 流态混凝土时潜孔锤内进入杂质。所述的工程钻机中，潜孔锤锤体边 缘的管腔底部有活门，它在潜孔锤正向转动钻进时关闭，当潜孔锤停 止钻进、 压入超流态混凝土时打开。 The purpose of the utility model is achieved as follows: including the rig body and its accessory equipment, the rig tower, the drill pipe power head, the high pressure rotary joint, the long auger drill rod, the drill rod power head is placed on the rig tower, rolling The rotary joint is placed on the power head of the drill pipe, and the upper part of the long auger drill pipe is connected with the rolling rotary joint, and the utility model is characterized in that: a diving hole hammer is connected to the lower part of the long auger drill pipe, and the rotary joint and the long auger drill pipe are used for diving. The hole hammer constitutes a set of drilling tools; the main body of the rolling rotary joint is composed of two inner and outer circular pipe walls, and the inner and outer two circular pipe walls form two inner and outer cavities; The long auger drill rod is composed of an inner tube and an outer tube and a spiral blade; The edge of the hammer of the latent hole hammer is provided with a lumen passing from the top end of the hammer body to the bottom end of the hammer body, and the top end of the down-the-hole hammer has two inner and outer circular tube wall joints, respectively, and the inner tube of the long auger drill rod above. The inner tube and the outer tube of the long auger shaft are respectively connected with the inner and outer circular tubes of the high-pressure rotary joint; respectively, and the upper and outer cavities of the high-pressure rotary joint are respectively connected. There are ventilation joints and super-fluid concrete injection joints; the high-pressure rotary joints, long auger drill pipes and down-the-hole hammers form two independent lumens from top to bottom. The drill rod power head drives the long auger rod to press and rotate, and the high-pressure wind supplies air to the down-the-hole hammer through a lumen in the drilling tool, and the down-the-hole hammer vibrates downward to drill, and the underlying soil and rock are broken into pieces and The debris is blown out to the spiral blade at the top of the down-the-hole hammer, and the spiral blade rotates to discharge the debris. In the engineering drilling machine, the down-the-hole hammer is drilled to the design elevation and stopped, the drill rod power head drives the long auger rod to be lifted, and the super-flow concrete is pressed into the hole through the other tube of the drilling tool. In the engineering drilling rig, the down-the-hole hammer adopts the latent hole hammer design of the waterproof technology already available in the market to prevent the entry of impurities into the down-the-hole hammer when the air supply is stopped and the super-flow concrete is pressed. In the engineering drilling machine, there is a flap at the bottom of the cavity at the edge of the hammer of the down-the-hole hammer, which is closed when the down-the-hole hammer is rotated in the forward direction, and is opened when the down-the-hole hammer stops drilling and presses into the super-flow concrete.
本实用新型相比现有超流态混凝土压灌桩的施工钻机的优点是: 由高压回转接头、长螺旋钻杆、潜孔锤组成两个独立的管腔，可以同 时输送高压风和超流态混凝土；钻具中的钻头是潜孔锤，潜孔锤可以 钻入坚硬岩石，钻具中的一个管腔可以输送高压风、供给潜孔锤做动 力源来进行钻进,并将潜孔锤形成的碎屑吹出、 由螺旋叶片排出； 潜 孔锤钻至设计标高后，超流态混凝土可以通过钻具中的另一条管腔压 灌到桩潜孔锤下面的钻孔内。 The utility model has the advantages that the construction drilling rig of the existing super-flow concrete pressure-filled pile has the following advantages: the high-pressure rotary joint, the long auger drill pipe and the down-the-hole hammer constitute two independent lumens, and can simultaneously transport the high-pressure wind and the super-flow. Concrete; the drill bit in the drill is a down-the-hole hammer, and the down-the-hole hammer can be drilled into hard rock. One of the drills can transport high-pressure wind, supply a down-the-hole hammer as a power source for drilling, and dive holes. The debris formed by the hammer is blown out and discharged by the spiral blade; after the downhole hammer is drilled to the design elevation, the super fluid concrete can be poured into the borehole below the pile hammer by the other pipe in the drill.
下面结合附图对本实用新型做进一步描述。 The present invention will be further described below in conjunction with the accompanying drawings.
附图说明 DRAWINGS
图 1是本实用新型的整体结构示意图； Figure 1 is a schematic view of the overall structure of the present invention;
图 2是髙压回转接头及髙压回转接和长螺旋钻杆连接部位的结 构示意图； Figure 2 is a schematic view showing the structure of the joint of the rolling rotary joint and the rolling rotary joint and the long auger drill rod;
图 3是潜孔锤及潜孔锤和长螺旋钻杆连接部位的结构示意图； 图 4是本发明的施工过程示意图。
具体实施方式 3 is a schematic structural view of a connection portion of a down-the-hole hammer and a down-the-hole hammer and a long auger drill pipe; and FIG. 4 is a schematic view showing a construction process of the present invention. detailed description
本工程钻机， 包括钻机车体及其附属设备 1， 钻机塔杆 2， 钻杆 动力头 3， 高压回转接头 4，长螺旋钻杆 5及螺旋叶片 13，潜孔锤 6。 高压回转接头 4、长螺旋钻杆 5及螺旋叶片 13、潜孔锤 6共同组成一 套钻具。所述的钻杆动力头 3可沿钻机塔杆 2上下运动，所述的高压 回转接头 4的主体固定在钻杆动力头 3上。 所述的高压回转接头 4 的主体具有圆管状内管壁 8、 圆管状外管壁 7。 内管壁 8和外管壁 7 下面分别有圆管状内管壁 22和圆管状外管壁 21，他们可以相对高压 回转接头主体水平旋转并用来和长螺旋钻杆 5的顶端连接固定。高压 回转接头 4的内外管壁形成两个空腔，两个空腔上部分别有通风接管 10和超流态混泥土注入接管 9。 所述的长螺旋钻杆 5由圆形内管 12 和圆形外管 11及螺旋叶片 13组成， 长螺旋钻杆 5的内管 12和外管 11分别与高压回转接头底部的圆管状内壁 22、圆管状外壁壁 21连接 固定并可与高压回转接头 4的主体在水平方向相对旋转。长螺旋钻杆 5的底端连接潜孔锤 6，所述的潜孔锤 6的锤体边缘设有管腔 18由锤 体上端通到锤体下端， 潜孔锤上端有两个圆管状内接头 17、 圆管状 外接头 16， 上面分别与长螺旋钻杆 5的内管 12和外管 11连接固定。 潜孔锤上端的内接头 17和外接头 16形成两个空腔分别连通潜孔锤的 进风口 19和锤体边缘的管腔 18。所述的工程钻机中的髙压回转接头 4、 长螺旋钻杆 5和潜孔锤 6的空腔由上至下相连并贯通组成两个独 立的空腔。所述的工程钻机中，钻杆动力头 3驱动钻杆 5向下压和旋 转， 髙压风通过钻具内一条管腔供风到潜孔锤 6的进风口 19给潜孔 锤 6作为动力，潜孔锤 6向下震动钻进，将下面的土和岩石击成碎屑 并将碎屑吹出到潜孔锤 6的顶端螺旋叶片 13的下端， 螺旋叶片 13 旋转将碎屑排出。 The drilling rig includes the drilling rig body and its auxiliary equipment 1, the rig tower 2, the drill pipe power head 3, the high pressure rotary joint 4, the long auger drill rod 5 and the spiral blade 13, and the down-the-hole hammer 6. The high-pressure rotary joint 4, the long auger drill rod 5, the spiral blade 13, and the down-the-hole hammer 6 together constitute a set of drilling tools. The drill pipe power head 3 is movable up and down along the drill tower 2, and the main body of the high-pressure rotary joint 4 is fixed on the drill pipe power head 3. The main body of the high-pressure rotary joint 4 has a circular tubular inner tube wall 8 and a circular tubular outer tube wall 7. The inner tube wall 8 and the outer tube wall 7 have a circular tubular inner tube wall 22 and a circular tubular outer tube wall 21, respectively, which are horizontally rotatable relative to the high-pressure rotary joint body and are used for connection with the top end of the long auger shaft 5. The inner and outer tube walls of the high-pressure rotary joint 4 form two cavities, and the upper portions of the two cavities respectively have a venting nozzle 10 and a super-fluid concrete injecting nozzle 9. The long auger drill rod 5 is composed of a circular inner tube 12 and a circular outer tube 11 and a spiral blade 13, and the inner tube 12 and the outer tube 11 of the long auger shaft 5 and the circular tubular inner wall 22 at the bottom of the high-pressure rotary joint, respectively. The circular tubular outer wall 21 is fixedly coupled and rotatable relative to the main body of the high-pressure swivel joint 4 in the horizontal direction. The bottom end of the long auger shaft 5 is connected to the down-the-hole hammer 6, and the hammer body edge of the down-the-hole hammer 6 is provided with a lumen 18 leading from the upper end of the hammer body to the lower end of the hammer body, and the upper end of the down-the-hole hammer has two round tubular shapes. The joint 17 and the round tubular outer joint 16 are respectively fixedly connected to the inner tube 12 and the outer tube 11 of the long auger shaft 5. The inner joint 17 and the outer joint 16 at the upper end of the down-the-hole hammer form two cavities which respectively communicate with the air inlet 19 of the down-the-hole hammer and the lumen 18 of the edge of the hammer. The cavities of the rolling rotary joint 4, the long auger shaft 5 and the down-the-hole hammer 6 in the engineering drilling machine are connected from top to bottom and penetrate to form two independent cavities. In the engineering drilling machine, the drill pipe power head 3 drives the drill pipe 5 to press and rotate downward, and the rolling air is supplied to the air inlet port 19 of the down-the-hole hammer 6 through a pipe cavity in the drilling tool to power the down-the-hole hammer 6 The down-the-hole hammer 6 is drilled downward, the underlying soil and rock are broken into chips and the debris is blown out to the lower end of the top spiral blade 13 of the down-the-hole hammer 6, and the spiral blade 13 rotates to discharge the debris.
所述的工程钻机中，潜孔锤 6钻至设计标高后停止，钻杆动力头 3驱动钻杆 5带动潜孔锤 6上提，超流态混凝土通过钻具另一条管腔 压入潜孔锤 6下面的孔内。所述的工程钻机中，潜孔锤 6采用市场已 经有的防水设计， 防止停止供高压风、压入超流态混凝土时潜孔锤 6
内进入杂质。 In the engineering drilling machine, the down-the-hole hammer 6 is drilled to the design elevation and then stopped, the drill pipe power head 3 drives the drill pipe 5 to drive the down-the-hole hammer 6 to be lifted, and the super-flow concrete is pressed into the down-hole through another pipe of the drilling tool. Inside the hole below the hammer 6. In the engineering drilling rig, the down-the-hole hammer 6 adopts the waterproof design already in the market to prevent the down-the-hole hammer 6 when the high-pressure air is stopped and the super-flow concrete is pressed. Enter impurities inside.
所述的工程钻机中，潜孔锤 6锤体边缘的管腔 18底部有活门 20， 它在潜孔锤 6正向转动时关闭，潜孔锤 6停止震动钻进、压入超流态 混凝土时打开。 In the engineering drilling machine, the bottom of the cavity 18 at the edge of the hammer of the down-the-hole hammer 6 has a shutter 20 which is closed when the down-the-hole hammer 6 rotates in the forward direction, and the down-the-hole hammer 6 stops the vibration drilling and presses into the super-flow concrete. Open when.
施工过程（见图 4)是 A钻机钻进； B钻机钻到孔底； C钻杆上 提， 向孔内压灌混凝土； D为向孔内放钢筋笼； E为完工的工程桩。 The construction process (see Figure 4) is the drilling of the A drilling machine; the B drilling machine is drilled to the bottom of the hole; the C drilling rod is lifted, and the concrete is poured into the hole; D is the reinforcing cage placed in the hole; E is the completed engineering pile.
上述实施例为本发明的较佳实施例，并非依次限制本发明的保护 范围， 故： 凡依本发明的结构、形状、原理所做的等效变化， 均应涵 盖于本发明的保护之内。
The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, equivalent changes made to the structures, shapes, and principles of the present invention are encompassed within the protection of the present invention. .
Claims
1、一种可以在坚硬岩层做超流态混凝土压灌桩施工的工程钻机， 包括钻机车体及其附属设备，钻机塔杆，钻杆动力头，高压回转接头， 长螺旋钻杆，钻杆动力头置于钻机塔杆上，高压回转接头置于钻杆动 力头上，长螺旋钻杆上部与高压回转接头连接，其特征是：在长螺旋 钻杆下部连接有潜孔锤， 由高压回转接头，长螺旋钻杆，潜孔锤组成 一套钻具； 所述的高压回转接头的主体由内、 外两个圆形管壁构成， 内、外两个圆形管壁形成两个内、外空腔；所述的长螺旋钻杆由内管 和外管及螺旋叶片构成;所述的潜孔锤锤体边缘设有管腔由锤体顶端 通到锤体底端，潜孔锤顶端有内、外两个圆形管壁状接头，分别与上 面长螺旋钻杆的内管和外管连接固定；长螺旋钻杆的内管和外管上部 分别与高压回转接头的内、外两个圆形管壁相连接；在高压回转接头 的两个内、 外空腔上部分别连接有通风接管和超流态混泥土注入接 管；所述的高压回转接头、长螺旋钻杆和潜孔锤由上至下组成两个独 立的管腔。 1. An engineering drilling rig that can construct superfluid concrete pressure piles in hard rock formations, including a drilling rig body and its ancillary equipment, a drilling rig tower, a drill rod power head, a high-pressure rotary joint, a long spiral drill pipe, and a drill pipe. The power head is placed on the drilling rig tower rod, the high-pressure rotary joint is placed on the drill pipe power head, and the upper part of the long spiral drill pipe is connected to the high-pressure rotary joint. Its characteristics are: a down-the-hole hammer is connected to the lower part of the long spiral drill pipe, and is rotated by the high-pressure The joint, the long spiral drill pipe, and the down-the-hole hammer form a set of drilling tools; the main body of the high-pressure rotary joint is composed of two inner and outer circular pipe walls, and the two inner and outer circular pipe walls form two inner and outer circular pipe walls. The outer cavity; the long spiral drill rod is composed of an inner tube, an outer tube and a spiral blade; the edge of the hammer body of the down-the-hole hammer is provided with a cavity that leads from the top of the hammer body to the bottom of the hammer body, and the top of the down-the-hole hammer There are two inner and outer circular pipe wall joints, which are connected and fixed with the inner and outer pipes of the long auger drill pipe respectively; the inner pipe and the upper part of the outer pipe of the long auger drill pipe are respectively connected with the inner and outer parts of the high-pressure rotary joint. The two circular pipe walls are connected; the upper parts of the two inner and outer cavities of the high-pressure rotary joint are respectively connected with ventilation pipes and superfluid concrete injection pipes; the high-pressure rotary joint, the long spiral drill pipe and the down-the-hole hammer Two independent lumens are formed from top to bottom.
2、 如权利要求 1所述的一种可以在坚硬岩层做超流态混凝土压 灌桩施工的工程钻机，其特征是：所述潜孔锤锤体边缘的管腔底部设 有活门。
2. An engineering drilling rig capable of performing superfluid concrete piling construction in hard rock formations as claimed in claim 1, characterized in that: a valve is provided at the bottom of the cavity at the edge of the hammer body of the down-the-hole hammer.
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| CN201310024243.4 | 2013-01-23 | ||
| CN2013100242434A CN103089146A (en) | 2013-01-23 | 2013-01-23 | Engineering driller capable of conducting superfluid concrete grouting pile driving construction on hard rock strata |
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| CN103089146A (en) * | 2013-01-23 | 2013-05-08 | 阎慧奎 | Engineering driller capable of conducting superfluid concrete grouting pile driving construction on hard rock strata |
| CN103244051B (en) * | 2013-05-11 | 2016-04-13 | 彭桂皎 | A kind of combined down-hole hammer drilling tool and pile forming method thereof |
| CN103266598B (en) * | 2013-06-06 | 2014-11-26 | 赵守众 | Equipment for one-time pile forming into rock of screw pile driver and pile forming method |
| CN104533284B (en) * | 2014-04-22 | 2017-12-22 | 威海市水利岩土工程有限公司 | A kind of long spire stake machine |
| CN106351214A (en) * | 2016-08-29 | 2017-01-25 | 中冶沈勘工程技术有限公司 | Construction method of long spiral variable diameter concrete pile |
| CN112282658B (en) * | 2020-11-26 | 2022-02-18 | 西南石油大学 | Continuous drilling and circulating pouring integrated piling tool |
| CN112983258A (en) * | 2021-01-28 | 2021-06-18 | 中铁上海工程局集团有限公司 | Down-the-hole hammer rapid hole forming construction method for unconsolidated rock stratum geology |
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