CN110847168A - A kind of drilling-anchor-grouting combined construction device and anchor-cable construction method - Google Patents

Abstract

The invention discloses a drilling-anchor-grouting combined construction device and an anchor-cable construction method, which combine the three major procedures of drilling, anchoring and grouting in the anchor-cable on-site construction, simplifies the construction, and solves the problem of the existing anchor-cable construction technology. complicated question. Using the device to insert the anchor cable and the grouting pipe into the anchor hole, the work efficiency is improved, and the construction is basically automated. Its working principle is: first move the device to the designated position and fix it, adjust the inclination angle of the drilling anchor injection assembly, align the drilling device with the design position of the anchor cable installation, turn on the drilling control switch to drill, and turn off the drilling after the drilling is completed. Hole control switch, then turn on the rotary switch, align the anchor cable installation device with the hole position of the drill hole, close the rotary switch, open the anchor cable installation switch, insert the anchor cable into the hole, turn off the anchor cable installation switch, open the rotary switch, and put the grouting The device is aligned with the position of the drilling hole, the rotary switch is turned off, the grouting switch is turned on, the grouting telescopic pipe is extended into the hole for grouting, and the anchor cable construction is completed.

Description

A kind of drilling-anchor-grouting combined construction device and anchor-cable construction method

technical field

The invention belongs to the technical field of anchor cables in civil engineering, and in particular relates to a drilling-anchor-grouting combined construction device and an anchor-cable construction method.

Background technique

In civil engineering construction, prestressed anchoring technology has become the most common rock and soil reinforcement measure. The anchor cable support directly generates anti-sliding resistance on the sliding surface through its pre-stressed steel strands and increases the anti-sliding frictional resistance. , so that the structural surface is in a compressed state to improve the integrity of the slope rock mass, thereby fundamentally improving the mechanical properties of the rock mass, effectively controlling the displacement of the rock mass, promoting its stability, and achieving the regulation of bedding, landslides and hazards. The purpose of rocks and dangerous rocks. At present, the construction process roughly includes the following steps: firstly use drilling technology to drill holes in the soil layer, then install anchor cables in the holes and grouting to form anchors, and the anchoring force of the anchors is transmitted to the slope protection structure through steel strands , so as to ensure the stability of the slope. At present, the commonly used anchoring and supporting technology for anchor cable construction has the following shortcomings: 1) The existing anchoring and supporting technology, the drilling, anchoring, grouting and other procedures need to be carried out separately, and this process is basically completed by manual operation. The process is too complicated. 2) The process of inserting the anchor cable into the anchor hole is time-consuming and labor-intensive, and the work efficiency is low, and the artificial high-altitude operation has potential safety hazards.

SUMMARY OF THE INVENTION

The invention provides a drilling-anchor-grouting combined construction device and an anchor-cable construction method, which combine the three major procedures of drilling, anchoring and grouting in the on-site construction of the anchor-cable, which facilitates operation and simplifies construction.

In order to achieve the above purpose, a combined construction device for drilling, anchoring and injection, including a platform assembly, a drilling and anchoring injection assembly and a wire ring assembly, the platform assembly includes a support chassis, a bracket and an angle control telescopic rod are installed on the support chassis, and an upper end of the bracket is installed with a The construction platform is provided with an opening, and a component placement plate is installed in the opening, and one end of the component placement plate is hinged on the construction platform; the angle control telescopic rod is located below the other end of the component placement plate;

A drill, anchor and injection assembly is fixed on the component placement plate. The drill, anchor and injection assembly includes a drill, anchor and injection assembly. The drill, anchor and injection device is arranged in the casing. The drill, anchor and injection device includes a drilling device, a grouting device and an anchor cable installation. The side wall of the casing is provided with a first installation hole, a second installation hole and a third installation hole, the first installation hole is used to extend the drill bit of the drilling device, and the second installation hole is used to extend the injection hole of the grouting device. The grouting pipe, the third installation hole is used to extend the anchor cable installation device, and the anchor cable installation device is provided with a partition for dividing the hollow rod into a plurality of cavities; the side wall of the shell is provided with a grouting pipe connection port and The anchor cable is inserted into the hole; a plurality of grooves for passing through the anchor cable are provided on the wire harnessing ring assembly.

Further, the drilling device is a two-stage electric telescopic rod, including a first rear hollow rod and a drill bit sleeved in the first rear hollow rod; the grouting device is a two-stage electric telescopic rod, It includes a second hollow rod and a grouting pipe sleeved in the second rear hollow rod; the anchor cable installation device is an electric telescopic hollow rod, and the hollow rod is used to cooperate with the wire-laying ring assembly to attach the anchor cable Insert into drilled hole.

Further, the bracket is a vertical telescopic bracket, and the straight telescopic bracket is an electric telescopic rod.

Further, the construction platform is provided with an anchor cable insertion hole and a slurry delivery pipe insertion hole.

Further, a support plate is fixed on the side wall of the drill anchor injection assembly opposite to the drill hole.

Further, an enclosure wall is fixed on the outer periphery of the construction platform.

Further, four universal wheels are installed at the lower end of the support chassis.

An anchor cable construction method based on the above-mentioned drilling-anchor-grouting combined construction device, comprising the following steps:

Step 1. Move the drill-anchor-grouting assembly construction device to the construction position and fix it, so that the drilling-anchor-grouting assembly construction device is aligned with the design position of the anchor cable, so that the inclination angle of the drilling-anchor-grouting assembly meets the design requirements;

Step 2. Rotate the drilling device to the drilling design position, and open the drilling device for drilling;

Step 3. Align the anchor cable installation device with the drilling position, pass the anchor cable through the port of the anchor cable installation device, connect the anchor cable with the wire ring, open the anchor cable installation device, and the electric telescopic rod of the anchor cable installation device Push the wire ring forward, and at the same time drive the anchor cable into the borehole. After the anchor cable installation is completed, close the anchor cable installation device;

Step 4. After aligning the grouting device with the drilling position, connect the grouting pipe to the connection port of the grouting pipe, open the grouting device, and make the telescopic rod of the grouting device enter the drilling hole, and the grout will flow along the groove in the telescopic rod. The cavity enters the borehole for grouting. After the grouting is completed, the grouting device is closed and the anchor cable construction is completed.

Compared with the prior art, the present invention has at least the following beneficial technical effects:

Combining the three major processes of drilling, anchor cable installation and grouting, drilling, anchor cable installation and grouting can be realized with one device, which greatly simplifies the construction process and saves a lot of labor. The construction of the anchor cable is basically automated, and the difficulty of operation and management is reduced.

Further, the use of the telescopic rod to insert the anchor cable and the grouting pipe into the anchor hole improves the degree of construction mechanization and thus improves the construction efficiency. Shorten the construction period and reduce the construction cost.

Further, a support plate is fixed on the side wall of the drill-anchor-grouting assembly opposite to the borehole, and the support plate is used to prevent the drill-anchor-grouting assembly from directly contacting the soil layer and causing soil particles to enter into the drill-anchor-grouting assembly and cause its damage, and to prevent damage to the drill-anchor-grouting assembly. The drill anchor injection assembly plays a supporting role.

Further, the anchor cable installation device is provided with a partition for dividing the hollow rod into a plurality of cavities to prevent the anchor cable from entanglement.

Further, the outer periphery of the construction platform is fixed with a protective wall, which protects the safety of construction personnel and reduces the hidden danger of construction safety. Further, four universal wheels are installed at the lower end of the support chassis for easy movement.

An anchor cable construction method based on the above-mentioned drilling-anchor-grouting combined construction device, using the above-mentioned device to combine the three major processes of drilling, anchor cable installation and grouting, and sequentially moving the drilling, anchor cable installation and grouting device to the design Drilling, anchor cable installation and grouting can greatly simplify the construction process and save a lot of labor. The construction of the anchor cable is basically automated, and the difficulty of operation and management is reduced.

Description of drawings

Fig. 1 is the overall schematic diagram of the equipment;

Figure 2 is a schematic front view of the drilling anchor injection assembly;

Figure 3 is a schematic side view of the drill anchor injection assembly;

Figure 4 is a schematic diagram of drilling and work;

Figure 5 is a schematic diagram of grouting and work;

Figure 6 is a schematic diagram of the anchor cable and its work;

Figure 7 is a support plate diagram;

Figure 8 is a diagram of a connecting shaft assembly;

Fig. 9 is the wiring ring assembly diagram;

Figure 10 is an overall schematic diagram of the platform components;

Figure 11 is a schematic side view of the platform assembly;

Figure 12 is a top view of the platform assembly;

Figure 13 is a schematic diagram of the bottom structure of the electric telescopic mobile platform.

In the drawings: 1. Drilling anchor injection assembly; 1-1. Combination switch device; 1-1-1, switch cover plate; 1-1-2, telescopic and drilling switch; 1-1-3, grouting switch ;1-1-4, Anchor cable installation switch; 1-1-5, Rotary switch; 1-2 Drilling, anchoring and grouting combination device; 1-2-1, Drilling device; 1-2-2, Grouting device; 1-2-3, anchor cable installation device; 1-2-4, grouting pipe connection port; 1-2-5, anchor cable insertion hole; 2, support plate; 3, connecting shaft assembly; 4, wire ring Component; 5. Platform component; 5-1, Enclosure wall; 5-2, Anchor cable insertion hole; 5-3, Drilling anchor injection component placement plate; 5-4, Construction platform; 5-5, Vertical telescopic bracket; 5-6. Angle control telescopic rod; 5-7. Supporting chassis; 5-8. Universal wheel; 5-9. Insertion hole for slurry conveying pipe.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. The orientation or positional relationship shown in the figures is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a reference to the present invention. Invention limitations.

Referring to FIG. 1 , the drill-anchor-grouting combined construction device includes a drill-anchor-grouting assembly 1 , a support plate 2 , a connecting shaft assembly 3 , a wire ring assembly 4 and a platform assembly 5 .

Referring to FIG. 2 , the drill-anchor injection assembly 1 includes a combination switch device 1-1, a drill-anchor injection combination device 1-2 and a housing 1-3. The combination switch device 1-1 is arranged on the side wall of the housing 1-3.

3, wherein, the combination switch device 1-1 includes: a switch cover 1-1-1, a telescopic and drilling switch 1-1-2 and a grouting switch 1- 1-3. Anchor cable installation switch 1-1-4 and rotary switch 1-1-5. The telescopic and drilling switch 1-1-2 is electrically connected to the drilling device 1-2-1, the grouting switch 1-1-3 is electrically connected to the grouting device 1-2-2, and the anchor cable installation switch 1-1- 4. Electrically connect with the anchor cable installation device 1-2-3. The switch cover plate 1-1-1 is hinged on the side wall of the housing 1-3 to protect the switch button. Telescopic and drilling switch 1-1-2: It is a double push button, the first time is pressed, the built-in contact is connected to the DC motor, which drives the expansion and contraction of the drill pipe, and the second time is pressed to connect the rotary motor to control the rotation of the drill bit Drill into construction. Grouting switch 1-1-3: used to control grouting construction. Anchor cable installation switch 1-1-4: used for anchor cable installation construction. Rotary switch 1-1-5: After the switch is pressed, the rotary motor is connected, and the drilling device, the anchor cable installation device and the grouting device are rotated to the initial position of the anchor cable installation through the rotary motor.

The rear wall of the casing 1-3 is provided with a grouting pipe connection port 1-2-4 and an anchor cable insertion hole 1-2-5, and the front wall is provided with a first installation hole, a second installation hole and a third installation hole. An installation hole is used to extend the drill bit of the drilling device 1-2-1, the second installation hole is used to extend the grouting pipe of the grouting device 1-2-2, and the third installation hole is used to extend the anchor cable for installation Device 1-2-3.

4 to 6 , the drilling-anchor-grouting device 1-2 includes: a drilling device 1-2-1, a grouting device 1-2-2, an anchor cable installation device 1-2-3, and a grouting pipe connection port 1-2-4 and anchor cable insertion hole 1-2-5. The drilling device 1-2-1, the grouting device 1-2-2, and the anchor cable installation device 1-2-3 are arranged in the casing 1-3 and protrude from the front wall of the casing 1-3 for grouting Both the pipe connection port 1-2-4 and the anchor cable insertion hole 1-2-5 are opened on the rear wall of the housing 1-3.

Drilling device 1-2-1 is a two-stage electric telescopic rod, the front part is a solid drill bit tightly clamped to the end of the rear hollow rod, and the rear part is a hollow rod, which is used for drilling construction.

The grouting device 1-2-2 is a two-stage electric telescopic rod, both of which are hollow rods. The front hollow rod is tightly clamped to the end of the rear hollow rod for grouting construction.

The anchor cable installation device 1-2-3 is a one-stage electric telescopic rod, which is a hollow rod. The hollow rod is provided with a partition for dividing the hollow rod into four cavities, and the four anchor cables are connected by the port. Through the rod, the anchor cable can be inserted into the drill hole through the reciprocating expansion and contraction of the rod.

The connection port 1-2-4 of the grouting pipe is a threaded grouting pipe connection port, which is connected with a slurry conveying pipe. Anchor cable insertion hole 1-2-5: The anchor cable is inserted through the insertion hole and passed through the anchor cable installation device port of the drill anchor injection assembly.

7, the support plate 2 is provided with through holes for passing through the drilling device 1-2-1, the grouting device 1-2-2 and the anchor cable installation device 1-2-3, and the four corners of the support plate 2 are useful Threaded hole for connecting shaft assembly 3. The support plate 2 is fixed on the outer side of the front wall of the casing 1-3 through four connecting shaft assemblies 3, so as to avoid the direct contact between the drill-anchor-injection assembly 1 and the soil layer, so that soil particles enter the drill-anchor-injection assembly and cause its damage. Note that the component acts as a support.

8 , the connecting shaft assembly 3 is used to connect the drill anchor injection assembly 1 and the support plate 2 together, and acts as a connecting hub. The connecting shaft assembly 3 is a cylinder, and both ends of the connecting shaft assembly 3 are provided with threads.

Referring to Figure 9, the wire loop assembly 4: the wire loop assembly 4 is disc-shaped, and the wire loop assembly 4 is provided with four grooves for passing through the anchor cable. Before the anchor cable is installed, the to-be-installed The anchor cable is inserted into the groove, and the wire ring assembly 4 is placed at the front end of the anchor cable installation device 1-2-3. The diameter of the wire frame ring assembly 4 is larger than the inner diameter of the anchor cable installation device 1-2-3. The anchor cable is connected, and the anchor cable and the wire loop assembly 4 are formed as a whole, and the anchor cable installation device 1-2-3 pushes the wire wire loop assembly 4 forward through the elongation process while inserting the anchor wire into the drilled hole.

10 to 13 , the platform assembly 5 includes: an enclosure wall 5-1, a drilling, anchoring and injection assembly placement plate 5-3, a construction platform 5-4, a vertical telescopic support 5-5, an angle control telescopic rod 5-6, Support chassis 5-7 and universal wheel 5-8.

The supporting chassis 5-7 is disc-shaped, four universal wheels 5-8 are installed at the lower end of the supporting chassis 5-7, and an angle control telescopic rod 5-6 and four vertical telescopic brackets 5 are installed on the supporting chassis 5-7 -5, the four vertical telescopic supports 5-5 are evenly arranged and located on the same circumference. The angle control telescopic rod 5-6 is located directly under the component placement plate 5-3. When the height of the angle control telescopic rod 5-6 is higher than the height of the vertical telescopic bracket 5-5, the component placement plate 5-3 is inclined and the angle can be used. Control the height difference between the telescopic rod 5-6 and the vertical telescopic support 5-5, adjust the inclination angle of the component placement plate 5-3, and then adjust the inclination angle of the drilling anchor injection assembly 1. The vertical telescopic support 5-5 and the angle control telescopic rod 5-6 are both electric telescopic rods, and the diameter of the angle control telescopic rod 5-6 is larger than the diameter of the vertical telescopic support 5-5. A circular construction platform 5-4 is installed on the upper end of the vertical telescopic support 5-5, and an anchor cable insertion hole 5-2 and a slurry conveying pipe insertion hole 5-9 are formed on the construction platform 5-4; There is a U-shaped opening, a component placement plate 5-3 is installed in the U-shaped opening, and one end of the component placement plate 5-3 is hinged on the construction platform 5-4; The positioning frame at the position of the drilling and anchoring component 1; the outer periphery of the construction platform 5-4 is fixed with an enclosure wall 5-1, and the enclosure wall 5-1 is annular.

Ring-shaped enclosure wall 5-1: plays the role of protecting the safety of construction workers. Slurry pipe insertion hole 5-9: When the anchor cable is installed, pass the anchor cable through the anchor cable insertion hole 5-2 and then through the anchor cable insertion hole 1-2-5 into the anchor cable installation device 1-2-3 , push the anchor cable installation device 1-2-3 into the drilled hole. When grouting, connect the grouting pipe to the connection port 1-2-4 of the grouting pipe. Drill anchor injection assembly placement plate 5-3: used to install the drill anchor injection assembly 1, and control its construction angle through the angle control telescopic rod 5-6, so as to accurately adjust the drilling angle and the installation angle of the anchor cable. Circular construction platform with holes 5-4: construction platform for construction workers. Vertical telescopic bracket 5-5: Adjust the height of the device to make it reach the design height of the anchor cable. Angle control telescopic rods 5-6: Control the drilling angle and the anchor cable insertion angle by controlling the construction angle of the drill anchor injection assembly 1, so that the anchor cable can be constructed according to the design angle. Support chassis 5-7: Support the upper structure. Universal wheel 5-8: Move the device to the construction position and fix it at the designated position, and has the roller locking function, which can prevent the device from moving, and play the role of moving, fixing and supporting.

The using method of the present invention is as follows:

Use the universal wheel 5-8 to move the whole device to the designated position and fix it, adjust the vertical telescopic bracket 5-5 to make the device align with the design position of the anchor cable, and change the angle to control the length of the telescopic rod 5-6 to make the drilling anchor injection assembly 1 The inclination angle meets the design requirements, use the rotary switch 1-1-5 to rotate the drilling device to the drilling design position, close the rotary switch 1-1-5, and open the telescopic and drilling switches 1-1-2 for telescopic and drilling operations. After drilling, close and extend the drilling switch 1-1-2; open the rotary switch 1-1-5, align the anchor cable installation device with the drilling position, close the rotary switch, and install the anchor cable by the anchor cable The 1-2-3 port of the device is passed through, and the anchor cable is connected by the wire ring 4, and the two form a whole. Turn on the switch of the anchor cable installation device, and the electric telescopic rod pushes the wire 4 ring forward, and at the same time drives the anchor cable to enter In the drilled hole, after the installation of the anchor cable is completed, turn off the installation switch of the anchor cable; turn on the rotary switch, align the grouting device 1-2-2 with the hole position, close the rotary switch, and connect the grouting pipe to the grouting pipe connection port 1 -2-4 connection, turn on the switch of the grouting device, make the telescopic rod enter the borehole, and the grout enters the borehole along the grouting pipe for grouting. When the grouting is completed, close the grouting switch and the anchor cable construction is completed.

The above content is only to illustrate the technical idea of the present invention, and cannot limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention all fall within the scope of the claims of the present invention. within the scope of protection.

Claims (8)

1. The drilling, anchoring and grouting combined construction device is characterized by comprising a platform assembly (5), a drilling, anchoring and grouting assembly (1) and a stringing ring assembly (4), wherein the platform assembly (5) comprises a supporting chassis (5-7), a support and an angle control telescopic rod (5-6) are mounted on the supporting chassis (5-7), a construction platform (5-4) is mounted at the upper end of the support, an opening is formed in the construction platform (5-4), an assembly placing plate (5-3) is mounted in the opening, and one end of the assembly placing plate (5-3) is hinged to the construction platform (5-4); the angle control telescopic rod (5-6) is positioned below the other end of the component placing plate (5-3);

a drilling and anchoring component (1) is fixed on the component placing plate (5-3), the drilling and anchoring component (1) comprises a drilling and anchoring combined device (1-2), the drilling and anchoring combined device (1-2) is arranged in a shell (1-3), the drilling and anchoring combined device (1-2) comprises a drilling device (1-2-1), a grouting device (1-2-2) and an anchor cable mounting device (1-2-3), a first mounting hole, a second mounting hole and a third mounting hole are formed in the side wall of the shell (1-3), the first mounting hole is used for extending out of a drill bit of the drilling device (1-2-1), the second mounting hole is used for extending out of a grouting pipe of the grouting device (1-2-2), and the third mounting hole is used for extending out of the anchor cable mounting device (1-2-3), separators used for dividing the hollow rod into a plurality of cavities are arranged in the anchor cable mounting devices (1-2-3); the side wall of the shell (1-3) is provided with a grouting pipe connector (1-2-4) and an anchor cable insertion hole (1-2-5);

the stringing ring component (4) is provided with a plurality of grooves for allowing anchor cables to pass through.

2. The drilling, anchoring and grouting combined construction device as claimed in claim 1, wherein the drilling device (1-2-1) is a two-section electric telescopic rod member, comprising a first rear section hollow rod member and a drill bit sleeved in the first rear section hollow rod member;

the grouting device (1-2-2) is a two-section type electric telescopic rod piece and comprises a second hollow rod piece and a grouting pipe sleeved in the second rear-section hollow rod piece;

the anchor cable mounting device (1-2-3) is an electric telescopic hollow rod piece, and the hollow rod piece is used for being matched with the wire erection ring component (4) to insert the anchor cable into the drill hole.

3. A combined drilling, anchoring and grouting construction device according to claim 1, characterized in that the support is a vertically telescopic support (5-5), and the vertically telescopic support (5-5) is an electric telescopic rod.

4. The combined drilling, anchoring and grouting construction device as claimed in claim 1, wherein anchor cable insertion holes (5-2) and grout pipe insertion holes (5-9) are formed in the construction platform (5-4).

5. A combined drill and anchor construction device according to claim 1, characterized in that a support plate (2) is fixed on the side wall of the drill and anchor assembly (1) opposite to the drill hole.

6. A combined drilling, anchoring and grouting construction device according to claim 1, characterized in that a retaining wall (5-1) is fixed on the periphery of the construction platform (5-4).

7. An integrated anchor cable construction device according to claim 1, wherein four universal wheels (5-8) are mounted at the lower end of the support chassis (5-7).

8. The anchor cable construction method of the drilling, anchoring and grouting combined construction device based on the claim 1 is characterized by comprising the following steps:

step 1, moving the drilling, anchoring and grouting combined construction device to a construction position and fixing the drilling, anchoring and grouting combined construction device to be aligned to a design position of an anchor cable, so that the inclination angle of the drilling, anchoring and grouting assembly (1) meets the design requirement;

step 2, rotating the drilling device to a drilling design position, and opening the drilling device to drill;

step 3, aligning the anchor cable installation device to the position of the drill hole, enabling the anchor cable to penetrate out of the port of the anchor cable installation device (1-2-3), connecting the anchor cable by using a stringing ring (4), opening the anchor cable installation device, enabling an electric telescopic rod of the anchor cable installation device to push the stringing ring (4) to move forwards, simultaneously driving the anchor cable to enter the drill hole, and closing the anchor cable installation device after the anchor cable is installed;

and 4, after the grouting device (1-2-2) is aligned to the drilling position, connecting the grouting pipe with the grouting pipe connecting port (1-2-4), opening the grouting device to enable a telescopic rod of the grouting device to enter the drilling hole, enabling grout to enter the drilling hole along a cavity in the telescopic rod to be grouted, closing the grouting device after grouting is completed, and completing construction of the anchor cable.

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