CN110438990A - The construction method of cable bolting structure - Google Patents
The construction method of cable bolting structure Download PDFInfo
- Publication number
- CN110438990A CN110438990A CN201910584648.0A CN201910584648A CN110438990A CN 110438990 A CN110438990 A CN 110438990A CN 201910584648 A CN201910584648 A CN 201910584648A CN 110438990 A CN110438990 A CN 110438990A
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- CN
- China
- Prior art keywords
- anchor
- rod
- cable
- hole
- anchor cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
Abstract
The present invention relates to a kind of construction methods of cable bolting structure comprising following steps: at least two pieces of bearing plates are arranged in the different length position of the anchor cable body of rod, weld a spiral reinforcement on every piece of bearing plate later by the installation anchor cable body of rod；Drilling forms anchor hole in construct；To carrying out once grouting in the anchor hole；It transfers in the anchor cable body of rod to the anchor hole and carries out secondary grouting；It constructs in the construct anchor, and the anchor is connect with the anchor cable body of rod.So, concentrfated load can be evenly spread on the first bearing plate and the second bearing plate in different length position, realize load peptizaiton in the different location of anchor cable induration, to which the peak value of adhesion strength be effectively reduced, the phenomenon that adhesion strength is disengaged or weakened probability reduces, and then the body of rod in entire supporting anchorage cable anchoring segment limit and boundary strength between induration, induration and stratum can be farthest improved, promote supporting performance.
Description
Technical field
The present invention relates to building supporting construction technical fields, more particularly to a kind of construction method of cable bolting structure.
Background technique
Traditional, in loading process, load can not be evenly distributed in induration anchor cable, lead to stress concentration phenomenon
It is more prominent, namely since anchor cable cohesive force is uneven, as load is continuously increased on induration, in load transmission to consolidating
Before body least significant end, the interface between the anchor cable body of rod and induration, induration and stratum will generate adhesion strength gradually disengage or
The phenomenon that reduction, causes failure of cable probability to increase, to the problems such as falling off, being broken easily occur, seriously affects supporting construction
Service performance.
Summary of the invention
Based on this, it is necessary to provide a kind of construction method of cable bolting structure, being formed by cable bolting structure can
Stress concentration phenomenon is mitigated or eliminated in effective distractive load, improves the anchor cable body of rod and induration, anchoring body and the bonding on stratum are strong
Degree promotes supporting performance.
Its technical solution is as follows:
A kind of construction method of cable bolting structure comprising following steps:
The anchor cable body of rod is installed, at least two pieces of bearing plates are arranged in the different length position of the anchor cable body of rod, Zhi Hou
A spiral reinforcement is welded on every piece of bearing plate；
Drilling forms anchor hole in construct；
To carrying out once grouting in the anchor hole；
It transfers in the anchor cable body of rod to the anchor hole and carries out secondary grouting；
It constructs in the construct anchor, and the anchor is connect with the anchor cable body of rod.
In the construction method of above-mentioned cable bolting structure, first the anchor cable body of rod is installed, is bored in construct later
Into formation anchor hole, then to progress once grouting operation in anchor hole；After the completion of once grouting operation, the anchor cable body of rod is transferred
In to anchor hole and secondary grouting is carried out, finally the construction and installation anchor in construct, and makes anchor and anchor cable bar
Body connection, can complete the construction of cable bolting structure.In this way, concentrfated load can be evenly spread in different length
On the first bearing plate and the second bearing plate of position, stress can be remained valid by the first dowel and the second dowel to be transmitted and divides
It dissipates and consumes, can realize load peptizaiton in the different location of anchor cable induration, so that adhesion strength be effectively reduced
The probability reduction of the phenomenon that peak value, adhesion strength is disengaged or weakened, and then can farthest improve entire supporting anchorage cable anchoring section
The body of rod and induration, induration in range and boundary strength between stratum promote supporting performance.
The technical solution of the application is further described below:
In one of the embodiments, in the step installation anchor cable body of rod, further comprise:
One group of unit body of rod and anchorage are installed on every piece of bearing plate respectively, are sleeved on the spiral reinforcement described
The outside of the unit body of rod.
In one of the embodiments, in the step installation anchor cable body of rod, further comprise: using the solution lock that is powered
Anchorage, and it connect the energization solution lock anchorage with electric control gear well by conducting wire.
It creeps into and is formed in anchor hole in construct in the step in one of the embodiments, specifically included:
Location measurement is carried out in construct, is guaranteed that boring positioning deviation is less than or equal to 100mm, is adjusted drilling machine later
Angle of drill bit, carry out at the uniform velocity drilling and forming hole.
The angle of drill bit of drilling machine is adjusted in the step in one of the embodiments, is carried out at the uniform velocity drilling and forming hole,
Further comprise: in the drill bit housing tubing of the drilling machine, carrying out band pipe drilling construction.
In one of the embodiments, the step in the anchor hole carry out once grouting in, specifically include:
Proportioned cement slurry is injected in described sleeve pipe with preset pressure, when mixing mud is overflowed from sleeve opening, into
Row side tube drawing marginal not slurry；Finally when pure cement slurry is overflowed from sleeve opening, i.e. stopping slip casting.
It transfers in the anchor cable body of rod to the anchor hole and carries out secondary in the step in one of the embodiments,
In slip casting, specifically include:
The anchor cable body of rod is at the uniform velocity inserted into anchor hole, detects the recyclable segment length of the anchor cable body of rod later, guarantees anchor
Gu section and the length of free segment are not less than design value requirement；After result to be detected is met the requirements, casing is extracted out.
It transfers in the anchor cable body of rod to the anchor hole and carries out secondary in the step in one of the embodiments,
In slip casting, further comprise:
In 24 hours after described sleeve pipe to be removed, secondary grouting is carried out into the anchor hole by mending slurry pipe, until
Cement grout stops slip casting after overflowing aperture.
It constructs in the construct anchor in the step in one of the embodiments, and by the anchoring
Device specifically includes in connecting with the anchor cable body of rod: successively construct on the alien invasion of the construct mask and anchor cable waist
Beam installs wedge-shaped pedestal, anchor plate and anchor head anchorage on the anchor cable waist rail again later, finally will be in each unit body of rod
Steel strand wires connect with the anchor head anchorage.
In one of the embodiments, in the step by each intracorporal steel strand wires of unit bar and the anchor head anchorage
Before connection, further includes: carry out grading tension and locking to each intracorporal steel strand wires of unit bar.
Detailed description of the invention
Fig. 1 is the process flow chart of the construction method of cable bolting structure described in one embodiment of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing and specific embodiment party
Formula, the present invention is further described in detail.It should be understood that the specific embodiments described herein are only to solve
The present invention is released, and the scope of protection of the present invention is not limited.
It should be noted that when element is referred to as " being fixedly arranged on ", " being set to " or " install in " another element, it can be with
Directly on the other element or there may also be elements placed in the middle.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements；One element and another element
The concrete mode being fixedly connected can be achieved by the prior art, and details are not described herein, it is preferred to use the fixation side of threaded connection
Formula.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
Heretofore described " first ", " second " do not represent specific quantity and sequence, are only used for the differentiation of title.
As shown in Figure 1, the construction method of the cable bolting structure shown for one embodiment of the application, for being constructed to various
Body is supported maintenance in the During Initial Stage Construction stage, guarantees operation safety.Such as when carrying out high-rise building construction, understand under stratum
Side excavates several rice even more than ten meters of depth and forms pit-hole, to build solid ground.It is dug around the pit-hole to be formed at this time
Soil be loosen, easily the evils such as rainwater omit weather loosen, collapse, construction is impacted, or even cause safety accident.This
When just need that Zinc fractions barrier effect is avoided collapsing along circumferential build support pile (wall) of pit-hole.And in order to add
The structural strength of strong supporting stake then needs to install anchor cable to depth of stratum, to reinforce its barrier ability.
Specifically, which includes the following steps:
S100: at least two pieces of bearing plates are arranged in the different length position of the anchor cable body of rod by the installation anchor cable body of rod, it
A spiral reinforcement is welded on every piece of bearing plate afterwards.
S200: drilling forms anchor hole in construct.
S300: to carrying out once grouting in the anchor hole.
S400: it transfers in the anchor cable body of rod to the anchor hole and carries out secondary grouting.
S500: anchor of constructing in the construct, and the anchor is connect with the anchor cable body of rod.
In the construction method of above-mentioned cable bolting structure, first the anchor cable body of rod is installed, later construct (can be with
Be interpreted as above-mentioned pit-hole, or other buildings of other construction sites in the prior art) on drilling form anchor hole, then to anchor
Once grouting operation is carried out in solid hole；After the completion of once grouting operation, the anchor cable body of rod is transferred in anchor hole and carrying out two
Secondary slip casting, the last construction and installation anchor in construct, and it connect anchor with the anchor cable body of rod, anchor cable can be completed
The construction of supporting construction.In this way, concentrfated load can evenly spread to the first bearing plate in different length position and
On second bearing plate, stress can be remained valid by the first dowel and the second dowel transmitting and disperse consume, can be real
Existing load peptizaiton is in the different location of anchor cable induration, so that the peak value of adhesion strength be effectively reduced, adhesion strength is disengaged
Or the phenomenon that reduction probability reduces, and then can farthest improve the body of rod and consolidation in entire supporting anchorage cable anchoring segment limit
Boundary strength between body, induration and stratum promotes supporting performance.
Further, in the step installation anchor cable body of rod, further comprise: pacifying on every piece of bearing plate respectively
One group of unit body of rod and anchorage are filled, the spiral reinforcement is made to be sleeved on the outside of the unit body of rod.Spiral reinforcement cuff is in list
The outside of first body of rod can play effect of contraction, and the diametric rigidity of the reinforcement unit body of rod, promote bearing capacity.It adopts
The unit body of rod is fixed on bearing plate with anchorage, then is capable of forming the supporting anchorage cable structure of stable structure, makes to hold on bearing plate
The stress of load is successively transferred on spiral reinforcement and the unit body of rod, reduces stress concentration effect.And the dowel of helical structure is used,
The continuity that can be then transmitted with proof stress, makes load disperse to consume rapidly.
When construction, the anchor cable body of rod needs to be inserted into the depths of construct, is stablized with ensuring to anchor, and just needs constructing at this time
Excavation and anchorage hole on body.In one embodiment, creeps into and formed in anchor hole in construct in the step, specifically included: in structure
Location measurement is carried out in building body, is guaranteed that boring positioning deviation is less than or equal to 100mm, is adjusted the angle of drill bit of drilling machine later,
Carry out at the uniform velocity drilling and forming hole.
The anchoring hole site of excavation need to construct according to layout design, preferably, support pile can be arranged more anchors
Rope, to promote support capacity.It just needs to carry out precise measurement to the hole location of multiple anchor holes at this time, must guarantee that deviations are enough
It is small, it avoids can not be successfully the installation anchor cable body of rod because subsequent caused by digging tiltedly.And use and at the uniform velocity feed drill bit, then can utmostly it subtract
The abrasion of small drill bit guarantees service life；And when encountering competent bed, it is also convenient for avoidable drill bit and breaks, hold drill bit
Easy withdrawing.
Further, the angle of drill bit of drilling machine is adjusted in the step, is carried out at the uniform velocity drilling and forming hole, is further wrapped
It includes: in the drill bit housing tubing of the drilling machine, carrying out band pipe drilling construction.Casing can carry out brokenly with drill bit coordinated
Rock is conducive to improve drilling efficiency；And the installation of casing synchronous with bore operation can carry out, and simplify construction procedure, after being convenient for
It is continuous to carry out slip casting operation.
It should be noted that should be according to the effective length of anchor cable, anchoring section requirement, drilling machine and support pile (wall) when construction
Spacing gets out corresponding casing quantity and is crept into, and casing model is selected according to product parameters, guarantee construction it is smooth into
Row.
And after being bored into anchorage cable design depth, it is also necessary to hole wall is rinsed using the cement grout of ground concentration, with
Rubble remaining in hole, soil are cemented out, guarantee the intensity for the knot solid that subsequent slip casting is formed.
In addition, the step in the anchor hole carry out once grouting in, specifically include:
Proportioned cement slurry is injected in described sleeve pipe with preset pressure, when mixing mud is overflowed from sleeve opening, into
Row side tube drawing marginal not slurry；Finally when pure cement slurry is overflowed from sleeve opening, i.e. stopping slip casting.Can so it guarantee in hole
Impurity and air are effectively discharged, and it is intracavitary that cement grout can utmostly fill hole.
Further, it transfers in the anchor cable body of rod to the anchor hole and is carried out in secondary grouting in the step, had
Body includes: at the uniform velocity to be inserted into the anchor cable body of rod in anchor hole, detects the recyclable segment length of the anchor cable body of rod later, guarantees anchoring
Section and the length of free segment are not less than design value requirement；After result to be detected is met the requirements, casing is extracted out.It can so guarantee anchor
Gu length is met the requirements, it is ensured that anchoring strength promotes supporting performance；It is also convenient for subsequent progress steel strand wires retightening operation simultaneously.
The step transfer in the anchor cable body of rod to the anchor hole and carry out further comprise in secondary grouting:
In 24 hours after described sleeve pipe to be removed, secondary grouting is carried out into the anchor hole by mending slurry pipe, until cement grout
Stop slip casting after overflowing aperture.Because during practice of construction, due to stratum geological conditions or operating reason, inevitably
Making knot solid, there are bubble and gap, the bubble and gaps will affect the structural strength for tying solid.Therefore pass through secondary grouting
(i.e. benefit slurry), can make the effective filling chink of slurries of supplement, and bubble is squeezed and is discharged, and keep knot solid more closely knit, structure
Intensity is higher.
It should be noted that prepared cement grout must not be placed more than 2h, to prevent water slurry liquid from generating isolation, shadow
The uniformity is rung, the intensity of knot solid is impacted.
After slip casting operation whole, will form by standing several hours, between anchor cable and stratum a thickness it is real,
Firm induration, plays power transmission and anastomosis.
It constructs in the construct anchor in the step, and the anchor and the anchor cable body of rod is connected
In connecing, specifically include: successively construct on the alien invasion of the construct mask and anchor cable waist rail, later again in the anchor cable waist
Wedge-shaped pedestal, anchor plate and anchor head anchorage are installed, finally by each intracorporal steel strand wires of unit bar and the anchor head anchor on beam
Tool connection.It can so guarantee to be strained and fixed to the anchor cable body of rod and its steel strand wires, guarantee the support capacity of anchor cable, improve power transmission effect
Can, it farthest improves the body of rod in entire anchorage cable anchoring segment limit and the interface between induration, induration and stratum is strong
Degree.
In addition, also being wrapped before each intracorporal steel strand wires of unit bar are connect by the step with the anchor head anchorage
It includes step: grading tension and locking is carried out to each intracorporal steel strand wires of unit bar.It can so guarantee each steel strand wires and cloth
If length matches and is tensioned and is straightened, load efficiency is improved, guarantees supporting performance.It should be noted that steel strand tension Shi Yingbao
It demonstrate,proves anchor head anchorage and each unit body of rod is on the same line, avoiding the formation of angle causes to cause prestressing force impaired；Also,
When drawing in addition to it should be classified and carry out according to certain load, also need to guarantee that the stress after the tensioning of each unit body of rod is consistent, to avoid
There is stress concentration phenomenon.
To reduce engineering cost, improving resource circulation utilization rate can be to unit in this programme after supporting operation
Steel strand wires inside the body of rod realize recycling.Specifically, further comprising: using energization in the step installation anchor cable body of rod
Lock anchorage is solved, and connect the energization solution lock anchorage with electric control gear well by conducting wire.
In this case, each unit body of rod includes outermost overclad tubes, and interval is provided on the outer tube wall of the overclad tubes
Two bar shaped convex bodys being arranged, the bar shaped convex body offer duct, are equipped with positive conductor in one of them described duct, another
Negative conductor is equipped in a duct；The positive conductor and the negative conductor are electrically connected with energization solution lock anchorage respectively
It connects.The solution that is powered lock anchorage includes shell, the thermal insulation layer on the inner wall for being set to the shell, is set to the interior of the thermal insulation layer
Heating member and the melting layer being set on the inner sidewall of the heating member on side wall, the steel strand wires and the melting layer fasten
Cooperation；The melting layer is electrically connected with the positive conductor and the negative conductor.
After the supporting operation of construction site, the steel strand wires in supporting anchorage cable can be recycled.Concrete operations side
Formula are as follows: open recyclable device, positive and negative conducting wire is powered；Generation high temperature makes to melt melting layer after heating member obtains electric energy, this
When steel strand wires can be detached from the gripping force of melting layer, i.e. anchorage is powered unlock.Steel strand wires can be pulled out realization recycling.It is heat-insulated
The setting of layer can avoid the high temperature that heating member generates and transmit and damage outward to other component.
It should be understood that melting layer can be molten metal, such as aluminium, copper alloy etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of construction method of cable bolting structure, which comprises the steps of:
The anchor cable body of rod is installed, at least two pieces of bearing plates are arranged in the different length position of the anchor cable body of rod, later at every piece
A spiral reinforcement is welded on the bearing plate；
Drilling forms anchor hole in construct；
To carrying out once grouting in the anchor hole；
It transfers in the anchor cable body of rod to the anchor hole and carries out secondary grouting；
It constructs in the construct anchor, and the anchor is connect with the anchor cable body of rod.
2. the construction method of cable bolting structure according to claim 1, which is characterized in that install anchor cable in the step
In the body of rod, further comprise:
One group of unit body of rod and anchorage are installed on every piece of bearing plate respectively, the spiral reinforcement is made to be sleeved on the unit
The outside of the body of rod.
3. the construction method of cable bolting structure according to claim 2, which is characterized in that install anchor cable in the step
In the body of rod, further comprise: using the solution lock anchorage that is powered, and the energization solution lock anchorage being made to pass through conducting wire and electric control gear
Connection is good.
4. the construction method of cable bolting structure according to claim 1, which is characterized in that in the step in construct
Upper drilling is formed in anchor hole, is specifically included:
Location measurement is carried out in construct, is guaranteed that boring positioning deviation is less than or equal to 100mm, is adjusted the brill of drilling machine later
Brilliance degree carries out at the uniform velocity drilling and forming hole.
5. the construction method of cable bolting structure according to claim 4, which is characterized in that adjust brill in the step
The angle of drill bit of machine, carry out further comprise at the uniform velocity in drilling and forming hole: in the drill bit housing tubing of the drilling machine, carry out band
Pipe drilling construction.
6. the construction method of cable bolting structure according to claim 5, which is characterized in that in the step to the anchor
It carries out in once grouting, specifically includes in solid hole:
By proportioned cement slurry when mixing mud is overflowed from sleeve opening, to carry out side in preset pressure injection described sleeve pipe
Tube drawing marginal not slurry；Finally when pure cement slurry is overflowed from sleeve opening, i.e. stopping slip casting.
7. the construction method of cable bolting structure according to claim 1, which is characterized in that described in step decentralization
In the anchor cable body of rod to the anchor hole and specifically include in secondary grouting:
The anchor cable body of rod is at the uniform velocity inserted into anchor hole, detects the recyclable segment length of the anchor cable body of rod later, guarantees anchoring section
Length with free segment is not less than design value requirement；After result to be detected is met the requirements, casing is extracted out.
8. the construction method of cable bolting structure according to claim 7, which is characterized in that described in step decentralization
In the anchor cable body of rod to the anchor hole and carry out further comprise in secondary grouting:
In 24 hours after described sleeve pipe to be removed, secondary grouting is carried out into the anchor hole by mending slurry pipe, until cement
Stop slip casting after slurries overfolw hole mouth.
9. the construction method of cable bolting structure according to claim 2, which is characterized in that in the step in the structure
It constructs in building body anchor, and the anchor is connect with the anchor cable body of rod, specifically include: in the construct
Alien invasion on successively construct mask and anchor cable waist rail, installed on the anchor cable waist rail again later wedge-shaped pedestal, anchor plate and
Each intracorporal steel strand wires of unit bar are finally connect by anchor head anchorage with the anchor head anchorage.
10. the construction method of cable bolting structure according to claim 9, which is characterized in that in the step by each institute
It states before the intracorporal steel strand wires of unit bar connect with the anchor head anchorage, further includes: to each intracorporal steel strand wires of unit bar
Carry out grading tension and locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584648.0A CN110438990A (en) | 2019-07-01 | 2019-07-01 | The construction method of cable bolting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584648.0A CN110438990A (en) | 2019-07-01 | 2019-07-01 | The construction method of cable bolting structure |
Publications (1)
| Publication Number | Publication Date |
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| CN110438990A true CN110438990A (en) | 2019-11-12 |
Family
ID=68429372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910584648.0A Pending CN110438990A (en) | 2019-07-01 | 2019-07-01 | The construction method of cable bolting structure |
Country Status (1)
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| CN (1) | CN110438990A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895073A (en) * | 2015-05-08 | 2015-09-09 | 霍炳旭 | Anchor rope construction system capable of being disassembled for many times and construction method thereof |
| JP2019027011A (en) * | 2017-07-25 | 2019-02-21 | 積水化学工業株式会社 | Reinforced anchor |
-
2019
- 2019-07-01 CN CN201910584648.0A patent/CN110438990A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895073A (en) * | 2015-05-08 | 2015-09-09 | 霍炳旭 | Anchor rope construction system capable of being disassembled for many times and construction method thereof |
| JP2019027011A (en) * | 2017-07-25 | 2019-02-21 | 積水化学工業株式会社 | Reinforced anchor |
Non-Patent Citations (1)
| Title |
|---|
| 王建强: "一种新的压力分散型热熔式可回收锚索的工程试验", 《中国优秀硕士学位论文全文数据库.工程科技Ⅱ辑》 * |
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Application publication date: 20191112 |