CN201459720U

CN201459720U - All-purpose spinning anchor pipe

Info

Publication number: CN201459720U
Application number: CN2009200323642U
Authority: CN
Inventors: 惠兴田
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-26
Filing date: 2009-03-26
Publication date: 2010-05-12
Anticipated expiration: 2019-03-26

Abstract

The utility model relates to an all-purpose spinning anchor pipe, which is a family of anchor bolts and comprises one or a plurality of bolt bodies extending along the axial direction. Screw thread is arranged at the outer end of the bolt body, the bolt body is a hollow tubular bolt body, the screw is of a spiral structure, and the bolt bodies are connected through spiral connectors. Through such a structure, long bolt bodies can be freely connected so as to be applicable to a loose and weak rock-soil body under various conditions, different anchoring functions can be realized according to different parameters and application methods, the functions of a resin bolt, a common mortar bolt, a hollow grouting bolt, a self-drilling bolt and a spraying bolt are realized, and the anchor pipe is applicable to common rock-soil and soft broken rock-soil engineering, is used in the engineering fields such as tunnel, coalmine tunnel gateway, complicated slope and metro foundation pit and has the functions of quick and timely anchoring and recycling.

Description

All-round spin anchor tube

Technical field

The utility model relates to a kind of geotechnical engineering support anchor rod, is specifically related to a kind of all-round spin anchor tube.

Background technology

The anchor pole technology has important function to geotechnical engineering stability, and the speed of anchor bolt construction quality and anchor bolt construction is the focus that people are concerned about always, and anchor structure or pattern are that this field is most important.The anchor pole that uses mainly contains following deficiency at present:

1) use cement lower as the grouting rock bolt and the grouted anchor bar anchoring agent fullness rate of cementing agent, construction finishes to need tens hours or several days time to playing anchorage effect.

2) self drilling anchor easy construction and compliance are extensive, but construction finishes not have anchor-hold just, need slip casting to solve the anchoring problem, make the anchoring effect onset of anchor pole slower, and drill bit of every anchor pole loss.

3) Fast Installation of resin anchoring agent anchor pole need be waited for the setting time of anchoring agent.

Summary of the invention

The purpose of this utility model is at above-mentioned the deficiencies in the prior art, provides a kind of and has from the all-round spin anchor tube that bores from anchoring, whitewashes certainly and do not have bonding extruding anchoring.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of all-round spin anchor tube is characterized in that comprising one or more bodies of rod that extend vertically, and described body of rod outer end is provided with revolves silk; The described body of rod is the hollow tubular body of rod, and the described silk that revolves is helical structure; Connect by the spiral connector between described a plurality of body of rod.

A described cross section of revolving is triangle, trapezoidal or rectangle.

Described spiral connector outer end is provided with the internal and external screw thread, and described spiral thread is and the described synchronous helical structure of a pitch that revolves that described helical structure is the multi-head spiral structure.

The described silk that revolves highly is 1-25mm, and revolving a spacing is 8-45mm.

The described silk that revolves is formed in one or is welded to connect with the body of rod.

Described lever front end is provided with and carries drill bit, and the described drill bit that carries is threaded or is welded as a whole with the described body of rod.

The anchor tube that should all can spin can carry drill bit at the anchor pole front end at soft bottom and play anchorage effect by strong extruding precession; Construction is during anchor pole in incompressible geotechnical body, drilling rod placed leading jewel hole in the hollow of anchor pole, simultaneously anchor pole installed; Higher if desired anchored force is installed the back at the spin anchor tube and from hollow slip casting slurries is full of to revolve space between silk and rock mass, also makes simultaneously to be full of slurries in the rock cranny, plays the effect of reinforcing rock mass.

The utility model compared with prior art has the following advantages:

1, all can spin the revolving silk and can be carved into geotechnical body and form frictional resistance and play certain first anchor-hold of anchor tube in time reinforced structure, delays the unsettled unstability time limit of structure.

2, all can the spin hollow lever of anchor tube has unimpeded space and drilling rod can be placed anchor bar body inside, makes jewel hole and anchor pole install and once finishes. and this makes the anchor pole installation rate improve greatly, and makes the installation reliability of anchor pole improve greatly.

3, owing to adopt the drilling rod jewel hole, follow existing self drilling anchor to compare and make the structural requirement of the body of rod reduce, also saved an anchor bit.The occasion that this just feasible anchor tube that all can spin can use uses the cost of spin anchor tube to reduce greatly.

4, the spin anchor tube install to finish pass through hollow slip casting, slurries is full of revolve the space between silk and rock mass, also makes simultaneously to be full of slurries in the rock cranny, plays the effect of reinforcing rock mass.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a kind of using method schematic diagram of the utility model.

Description of reference numerals:

1-carries drill bit; 2-inner cone mouth end; The 3-body of rod;

4-revolves silk; The 5-pallet; 6-outer cone mouth end;

The 7-nut; The 8-drill bit; The built-in drilling rod of 9-;

The specific embodiment

The all-round spin anchor tube shown in Figure 2 as Fig. 1 comprises a plurality of bodies of rod 3 that extend vertically, and the described body of rod 3 outer ends are provided with revolves silk 4; The described body of rod 3 is the hollow tubular body of rod, and the described silk 4 that revolves is helical structure; Connect by the spiral connector between the described body of rod 3.The spiral connector comprises the inner cone mouth end 2 of lever front end setting and is arranged on the terminal outer cone mouth end 6 that is complementary with inner cone mouth end 2 of the body of rod.Be integral by inner cone mouth end 2 and being threaded of outer cone mouth end 6 between a plurality of bodies of rod 3.

The inner cone mouth is held the spiral screw thread of 2 outer walls to be and is revolved the synchronous helical structure of silk 4 pitch, and described helical structure is a multi-head spiral.Described cross section of revolving silk 4 is a triangle, and inner cone mouth end 2 and outer cone mouth end 6 are one-body molded with the body of rod 3, and inner cone mouth end 2 and outer cone mouth end 6 also can be connected as a single entity by the welding and the body of rod 3.

Revolve silk 4 and highly be 15mm, revolving a spacing is 20mm.

The anchor tube that all can spin has the drill bit of carrying 1, and the outer cone mouth end 6 that carries drill bit 1 screws in inner cone mouth end 2, by the body of rod 3 that is threaded, utilizes the body of rod 3 self tapping precessions when constructing in loose geotechnical body, and the silk 4 that revolves of rod body 3 appearances forms extrusion friction resistances.

Carrying drill bit 1 can also be set to the body of rod 3 welding fixing.

The all-round spin anchor tube body of rod 3 terminal trays 5 and nut 7 are fixing.

The anchored force of the anchor tube that all can spin of self tapping precession geotechnical body can be carried out slip casting by the hollow of the body of rod 3, and the later stage anchored force of the feasible anchor tube that all can spin further rises.

As shown in Figure 2, run into the hard kata-rocks soil body, adopt built-in drilling rod 9 to be with drill bit 8 to carry out jewel hole, utilize power set all can spin anchor tube simultaneously with jewel hole precession simultaneously.The installation that jewel hole finishes anchor pole just finishes.

Such structure spreading body of rod is arbitrarily used with the loose weak rocks soil body that adapts under the multiple situation, can realize different anchoring functions according to different parameters and using method. therefore, the spin anchor tube becomes an individual system [Self-screwed Tube Bolting System (STBS)

]. its derivative anchor pole has:

Spin self tapping anchor pole: Screwed Drilling Tube Bolt (SDTB)

Spin self drilling anchor: Screwed Rod Drilling Tube Bolt (SARDB)

Spin grouted anchor bar: Screwed Slip Casting Tube Bolt (SSCB)

Spin whitewashing anchor pole: Screwed Full Injecting Tube Bolt (SFIB)

Spin resin anchor: Screwed Resin Tube Bolt (SRB)

The anchor tube that all can spin can be realized the function of resin anchor, ordinary mortar anchor pole, hollow grouting anchor, self drilling anchor and whitewashing anchor pole, is adapted to common ground and soft broken geotechnical engineering, has anchoring in time and callable function fast.

Claims

1. an all-round spin anchor tube is characterized in that comprising one or more bodies of rod that extend vertically, and described body of rod outer end is provided with revolves silk; The described body of rod is the hollow tubular body of rod; The described silk that revolves is helical structure; Linking joint by the spiral conessi between described a plurality of body of rod connects.

2. all-round spin anchor tube according to claim 1 is characterized in that a described cross section of revolving is triangle, trapezoidal or rectangle; The described silk that revolves highly is 1-25mm, and revolving a spacing is 8-45mm.The rotation direction of revolving silk is dextrorotation or left-handed, and the structure of revolving silk is continuous or zigzag.

3. all-round spin anchor tube according to claim 1 is characterized in that the hollow of the described hollow tubular body of rod is the major diameter hollow structure from an end through to the other end, and the whole through hole internal diameter maximum gauge of major diameter hollow and minimum diameter difference are less than 20mm; Can put into drilling rod and drill bit in the hollow.

4. according to claim 1,2 or 3 described all-round spin anchor tubes, it is that an end external spiral conessi is buckled and an end inside spin conessi is buckled that the spiral conessi that it is characterized in that described body of rod two ends links joint, described internal and external screw conessi button is and the described synchronous helical structure of a pitch that revolves that the helical structure that described taenidium links joint is the multi-head spiral structure of non-equidistance.

5. according to claim 1,2 or 3 described all-round spin anchor tubes, it is characterized in that the described silk that revolves is formed in one with the body of rod or is welded to connect.

6. according to claim 1,2 or 3 described all-round spin anchor tubes, it is characterized in that described lever front end can carry drill bit, drill bit structure is that non-isometrical helical structure or 1-5 piece polygon steel plate are welded.

7. all-round spin anchor tube according to claim 6 is characterized in that the described drill bit that carries is threaded or is welded as a whole with the described body of rod.