CN114411778A - Slope anchor cable and slope anchoring construction method thereof - Google Patents
Slope anchor cable and slope anchoring construction method thereof Download PDFInfo
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- CN114411778A CN114411778A CN202210185071.8A CN202210185071A CN114411778A CN 114411778 A CN114411778 A CN 114411778A CN 202210185071 A CN202210185071 A CN 202210185071A CN 114411778 A CN114411778 A CN 114411778A
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- grouting
- anchor cable
- slope
- hole
- drilling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the technical field of anchoring, in particular to a slope anchor cable and a slope anchoring construction method thereof, wherein the slope anchor cable comprises an anchor cable main body, wherein the anchor cable main body is made of a carbon fiber cable; the construction method comprises the following steps: s1: according to the construction environment of a high slope, a construction process flow chart is formulated by combining the existing technical means; s2: drilling construction: selecting a down-the-hole drill and an air compressor matched with the down-the-hole drill, and adopting a sleeve to follow up impact to form a hole; s3: preparing a carbon fiber rope and a grouting pipe, and placing an anchor cable and the grouting pipe at a specified position; s4: taking out the sleeve: the exposed rope and the grouting pipe are penetrated into a special variable joint connected with a power head of the drilling machine, and the sleeve pipe is taken out section by section through the variable joint; s5: grouting the anchor cable, wherein the anchor cable grouting adopts a secondary grouting method; the method has the advantages of low carbon, environmental protection, economy and convenient construction in the slope anchoring construction, and is not influenced by the construction environment.
Description
Technical Field
The invention relates to the technical field of anchoring, in particular to a side slope anchor cable and a side slope anchoring construction method thereof.
Background
The anchor rope or anchor rod construction is a key link for foundation pit and slope reinforcement, the anchor rod uses steel bars, the anchor rope uses steel strands or carbon fiber bundles, the steel bars, the steel strands or the carbon fiber bundles are high in price, and the anchor rod or the anchor rope made of the materials is difficult to construct, and particularly when the anchor rod or the anchor rod is constructed on a high slope, manpower and material resources are wasted and construction progress is influenced; therefore, a slope anchor cable and a slope anchoring construction method thereof are provided for solving the above problems.
Disclosure of Invention
The invention provides a slope anchor cable and a slope anchoring construction method thereof, aiming at overcoming the defects of the prior art and solving the problems that the price of a steel bar, a steel strand or a carbon fiber bundle is high, the construction difficulty is high due to the use of an anchor rod or an anchor cable made of the materials, and particularly, the construction process is influenced due to the labor and the material resources during the construction of a high slope.
The technical scheme adopted by the invention for solving the technical problems is as follows: the slope anchor cable comprises an anchor cable main body, wherein the anchor cable main body is made of a carbon fiber rope.
A slope anchoring construction method is suitable for the slope anchor cable, and comprises the following steps:
s1: according to the construction environment of a high slope, a construction process flow chart is formulated by combining the existing technical means;
s2: drilling construction: selecting a down-the-hole drill and an air compressor matched with the down-the-hole drill, and adopting a sleeve to follow up impact to form a hole;
s3: preparing a carbon fiber rope and a grouting pipe, and placing an anchor cable and the grouting pipe at a specified position;
s4: taking out the sleeve: the exposed rope and the grouting pipe are penetrated into a special variable joint connected with a power head of the drilling machine, and the sleeve pipe is taken out section by section through the variable joint;
s5: and grouting the anchor cable, wherein the anchor cable grouting adopts a secondary grouting method.
Preferably, in S1, the construction process flow comprises: preparing in the early stage → determining the position of a drilling hole → drilling a sleeve with the drilling hole → placing a grouting pipe and a carbon fiber rope after the drilling hole reaches the designed depth → withdrawing the sleeve → grouting to meet the design requirement → transferring to the next hole construction → secondary grouting → waist beam manufacturing → tensioning and locking.
Preferably, in S2, the size of the high pressure wind should be adjusted in time according to the depth and the requirement of the stratum during drilling, uniform drilling is required, the drilling speed is strictly forbidden to be fast and slow, the pressure is fast and slow, the rotating speed, the pressure and the flushing amount are reasonably mastered, the whole length of the drilling tool needs to be rechecked during final drilling, the rock powder is discharged through punching, and then the drilling tool is anchored.
Preferably, in S3, the carbon fiber rope and the slip casting pipe are combined and configured on the ground, the full length is measured, the full length is increased by 1.0 meter according to the hole depth, and the record is made.
Preferably, in S3, the thickness and the number of the carbon fiber ropes are prepared according to the design requirements, the isolation frames are penetrated through corresponding holes, the isolation frames are arranged every 1.0 meter along the ropes, the foremost ends of the isolation frames are correspondingly fixed on a specially-made mechanism, and the free tensioning sections of the ropes are wrapped by PVC pipes; the first section of the grouting pipe is connected with a special mechanism through a reverse screw thread, a carbon fiber rope and the grouting pipe are arranged in the sleeve, the grouting pipe is divided into 2 m sections, the sections are connected through a positive screw thread, the sections are connected while being arranged until the grouting pipe is placed to the bottom of the hole, the special mechanism at the bottom of the hole automatically bounces, the opening diameter is larger than the diameter of the formed hole, the carbon fiber rope is straightened by force and temporarily fixed at the hole opening, and the carbon fiber rope and the grouting pipe are required to be exposed out of the hole opening by 1.0 m and bound together through an adhesive tape; the carbon fiber rope can be manufactured in a factory in advance according to design requirements.
Preferably, in S5, the primary pouring slurry is M25 cement mortar, and the slurry is required to be uniformly stirred; the grouting pressure is 0.3-0.6 MPa, the slurry slowly flows out of the orifice on the principle that the slurry can be continuously and slowly pressed in, and the grouting can be stopped after 1min, so that the slurry can effectively discharge gas and accumulated water in the orifice and fill gaps; before the grouting of the anchor cable is started, the grouting pipe is rotated in the positive screw thread direction to be separated from the front end fixing mechanism and pulled upwards by 30cm, during the grouting, the pipe is pulled while the grouting is carried out, the primary grouting amount is determined according to 1.15-1.2 times of a theoretical calculation value, and the grouting is timely supplemented after the grout shrinks, so that the grout in an orifice is full.
Preferably, in S5, M25 cement paste is selected as the secondary high-pressure grouting, the secondary high-pressure grouting is carried out when the strength of the primary grouting body of the anchoring section reaches 5Mpa, and the pressure of the secondary high-pressure grouting is controlled to be 2.5-3 Mpa.
The invention has the advantages that:
1. the anchor rod or the anchor cable made of the carbon fiber rope is low in construction difficulty, does not take manpower and material resources, and accelerates construction progress.
2. The slope anchoring construction method provided by the invention realizes low carbon, environmental protection, economy and convenient construction in slope anchoring construction, and is not influenced by construction environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a flow chart of a method of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a slope anchor cable and a slope anchoring construction method thereof are disclosed, the slope anchor cable includes an anchor cable main body, and the anchor cable main body is made of a carbon fiber cable.
A slope anchoring construction method is suitable for the slope anchor cable, and comprises the following steps:
s1: according to the construction environment of a high slope, a construction process flow chart is formulated by combining the existing technical means;
s2: drilling construction: selecting a down-the-hole drill and an air compressor matched with the down-the-hole drill, and adopting a sleeve to follow up impact to form a hole;
s3: preparing a carbon fiber rope and a grouting pipe, and placing an anchor cable and the grouting pipe at a specified position;
s4: taking out the sleeve: the exposed rope and the grouting pipe are penetrated into a special variable joint connected with a power head of the drilling machine, and the sleeve pipe is taken out section by section through the variable joint;
s5: and grouting the anchor cable, wherein the anchor cable grouting adopts a secondary grouting method.
As an embodiment of the present invention, in S1, the construction process flow includes: preparing in the early stage → determining the position of a drilling hole → drilling a sleeve with the drilling hole → placing a grouting pipe and a carbon fiber rope after the drilling hole reaches the designed depth → withdrawing the sleeve → grouting to meet the design requirement → transferring to the next hole construction → secondary grouting → waist beam manufacturing → tensioning and locking.
In S2, the magnitude of the high pressure wind should be adjusted in time according to the depth and the requirement of the formation condition during drilling, so that uniform drilling is required, the drilling speed is strictly forbidden to be fast and slow, the pressure is fast and slow, the rotating speed, the pressure and the flushing amount are reasonably mastered, the whole length of the drilling tool needs to be rechecked during final drilling, the rock powder is discharged through punching, and then the drilling tool is anchored.
In S3, the carbon fiber rope and the grouting pipe are combined on the ground to measure the total length, and the total length is increased by 1.0 meter according to the hole depth, and then the record is made.
In an implementation mode of the invention, in S3, the thickness and the number of the carbon fiber ropes are prepared according to design requirements, the carbon fiber ropes penetrate into the isolation frames according to corresponding holes, the isolation frames are arranged every 1.0 meter along the ropes, the foremost ends of the carbon fiber ropes are correspondingly fixed on a specially-made mechanism, and free tensioning sections of the ropes are wrapped by PVC pipes; the first section of the grouting pipe is connected with a special mechanism through a reverse screw thread, a carbon fiber rope and the grouting pipe are arranged in the sleeve, the grouting pipe is divided into 2 m sections, the sections are connected through a positive screw thread, the sections are connected while being arranged until the grouting pipe is placed to the bottom of the hole, the special mechanism at the bottom of the hole automatically bounces, the opening diameter is larger than the diameter of the formed hole, the carbon fiber rope is straightened by force and temporarily fixed at the hole opening, and the carbon fiber rope and the grouting pipe are required to be exposed out of the hole opening by 1.0 m and bound together through an adhesive tape; the carbon fiber rope can be manufactured in a factory in advance according to design requirements.
As an embodiment of the present invention, in S5, M25 cement mortar is selected as the primary grouting slurry, and the slurry is required to be uniformly stirred; the grouting pressure is 0.3-0.6 MPa, the slurry slowly flows out of the orifice on the principle that the slurry can be continuously and slowly pressed in, and the grouting can be stopped after 1min, so that the slurry can effectively discharge gas and accumulated water in the orifice and fill gaps; before the grouting of the anchor cable is started, the grouting pipe is rotated in the positive screw thread direction to be separated from the front end fixing mechanism and pulled upwards by 30cm, during the grouting, the pipe is pulled while the grouting is carried out, the primary grouting amount is determined according to 1.15-1.2 times of a theoretical calculation value, and the grouting is timely supplemented after the grout shrinks, so that the grout in an orifice is full.
In the S5, M25 cement neat paste is selected as the secondary high-pressure grouting, the secondary high-pressure grouting is performed when the strength of the primary grouting body of the anchoring section reaches 5MPa, and the pressure of the secondary high-pressure grouting is controlled to be 2.5-3 MPa.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (8)
1. A side slope anchor rope which is characterized in that: the anchor cable comprises an anchor cable main body, wherein the anchor cable main body is made of carbon fiber ropes.
2. A slope anchoring construction method applied to the slope anchor cable according to claim 1, wherein: the construction method comprises the following steps:
s1: according to the construction environment of a high slope, a construction process flow chart is formulated by combining the existing technical means;
s2: drilling construction: selecting a down-the-hole drill and an air compressor matched with the down-the-hole drill, and adopting a sleeve to follow up impact to form a hole;
s3: preparing a carbon fiber rope and a grouting pipe, and placing an anchor cable and the grouting pipe at a specified position;
s4: taking out the sleeve: the exposed rope and the grouting pipe are penetrated into a special variable joint connected with a power head of the drilling machine, and the sleeve pipe is taken out section by section through the variable joint;
s5: and grouting the anchor cable, wherein the anchor cable grouting adopts a secondary grouting method.
3. The slope anchoring construction method according to claim 2, characterized in that: in S1, the construction process flow comprises the following steps: preparing in the early stage → determining the position of a drilling hole → drilling a sleeve with the drilling hole → placing a grouting pipe and a carbon fiber rope after the drilling hole reaches the designed depth → withdrawing the sleeve → grouting to meet the design requirement → transferring to the next hole construction → secondary grouting → waist beam manufacturing → tensioning and locking.
4. The slope anchoring construction method according to claim 2, characterized in that: in S2, the size of high pressure wind should be adjusted in time according to the depth and the requirement of stratum condition during drilling, uniform drilling is required, the speed is strictly forbidden to be fast and slow, the pressure is fast and slow, the rotating speed, the pressure and the flushing quantity are reasonably mastered, the whole length of the drilling tool needs to be rechecked during final hole drilling, the rock powder is discharged through punching, and then the drilling tool is anchored.
5. The slope anchoring construction method according to claim 2, characterized in that: and S3, combining and configuring the carbon fiber rope and the grouting pipe on the ground, measuring the total length, increasing the total length by 1.0 meter according to the hole depth, and recording.
6. The slope anchoring construction method according to claim 2, characterized in that: in S3, the thickness and number of the carbon fiber ropes are prepared according to design requirements, isolation frames are penetrated through corresponding holes, the isolation frames are arranged every 1.0 meter along the ropes, the foremost ends of the isolation frames are correspondingly fixed on a specially-made mechanism, and free tensioning sections of the ropes are wrapped by PVC pipes; the first section of the grouting pipe is connected with a special mechanism through a reverse screw thread, a carbon fiber rope and the grouting pipe are arranged in the sleeve, the grouting pipe is divided into 2 m sections, the sections are connected through a positive screw thread, the sections are connected while being arranged until the grouting pipe is placed to the bottom of the hole, the special mechanism at the bottom of the hole automatically bounces, the opening diameter is larger than the diameter of the formed hole, the carbon fiber rope is straightened by force and temporarily fixed at the hole opening, and the carbon fiber rope and the grouting pipe are required to be exposed out of the hole opening by 1.0 m and bound together through an adhesive tape; the carbon fiber rope can be manufactured in a factory in advance according to design requirements.
7. The slope anchoring construction method according to claim 2, characterized in that: in S5, selecting M25 cement mortar as primary grouting slurry, and requiring the slurry to be uniformly stirred; the grouting pressure is 0.3-0.6 MPa, the slurry slowly flows out of the orifice on the principle that the slurry can be continuously and slowly pressed in, and the grouting can be stopped after 1min, so that the slurry can effectively discharge gas and accumulated water in the orifice and fill gaps; before the grouting of the anchor cable is started, the grouting pipe is rotated in the positive screw thread direction to be separated from the front end fixing mechanism and pulled upwards by 30cm, during the grouting, the pipe is pulled while the grouting is carried out, the primary grouting amount is determined according to 1.15-1.2 times of a theoretical calculation value, and the grouting is timely supplemented after the grout shrinks, so that the grout in an orifice is full.
8. The slope anchoring construction method according to claim 2, characterized in that: and S5, selecting M25 cement clean slurry for secondary high-pressure grouting, and controlling the pressure of the secondary high-pressure grouting to be 2.5-3 Mpa when the strength of the primary grouting body in the anchoring section reaches 5 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185071.8A CN114411778A (en) | 2022-02-28 | 2022-02-28 | Slope anchor cable and slope anchoring construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185071.8A CN114411778A (en) | 2022-02-28 | 2022-02-28 | Slope anchor cable and slope anchoring construction method thereof |
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| CN114411778A true CN114411778A (en) | 2022-04-29 |
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| CN202210185071.8A Pending CN114411778A (en) | 2022-02-28 | 2022-02-28 | Slope anchor cable and slope anchoring construction method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624828A (en) * | 2009-07-23 | 2010-01-13 | 中国科学院水利部成都山地灾害与环境研究所 | Pressure-type carbon fiber prestressing force anchor cable land-sliding control structure |
| CN103088819A (en) * | 2013-02-22 | 2013-05-08 | 北京市公路桥梁建设集团有限公司 | Pre-stressed anchor cable construction method |
| CN109667542A (en) * | 2018-12-28 | 2019-04-23 | 杭州昂创科技有限公司 | The discontinuous pipe-following drilling anchor cable construction method of multistage subsection in broken formation |
| US20210363885A1 (en) * | 2017-11-28 | 2021-11-25 | Setevox (Pty) Ltd. | Non-metallic split set rockbolt |
-
2022
- 2022-02-28 CN CN202210185071.8A patent/CN114411778A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624828A (en) * | 2009-07-23 | 2010-01-13 | 中国科学院水利部成都山地灾害与环境研究所 | Pressure-type carbon fiber prestressing force anchor cable land-sliding control structure |
| CN103088819A (en) * | 2013-02-22 | 2013-05-08 | 北京市公路桥梁建设集团有限公司 | Pre-stressed anchor cable construction method |
| US20210363885A1 (en) * | 2017-11-28 | 2021-11-25 | Setevox (Pty) Ltd. | Non-metallic split set rockbolt |
| CN109667542A (en) * | 2018-12-28 | 2019-04-23 | 杭州昂创科技有限公司 | The discontinuous pipe-following drilling anchor cable construction method of multistage subsection in broken formation |
Non-Patent Citations (1)
| Title |
|---|
| 郑捷;李梓航;沈能典;蔡世桐;李东;: "富水砂层全套管锚索二次注浆施工技术", 城市住宅, no. 01 * |
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