CN111379262A - Anchor rod lattice slope protection construction method based on tunnel underground excavation section permanent side and top slope - Google Patents
Anchor rod lattice slope protection construction method based on tunnel underground excavation section permanent side and top slope Download PDFInfo
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- CN111379262A CN111379262A CN202010192494.3A CN202010192494A CN111379262A CN 111379262 A CN111379262 A CN 111379262A CN 202010192494 A CN202010192494 A CN 202010192494A CN 111379262 A CN111379262 A CN 111379262A
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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
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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
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention provides an anchor rod lattice slope protection construction method based on a permanent side-up slope of a tunnel underground excavation section, which comprises the following steps of S1, measurement and lofting, wherein anchor rod application is completed, an excavated slope body meets requirements of manually trimming the slope ratio and the like, then the position of a lattice beam and the application starting range are measured and released, S2, slope grooving is performed, grooves are manually excavated according to the position and the size of the lattice beam measured and released by a measurer, the grooves are respectively and extensively excavated by 20cm outside structural lines on two sides of the lattice beam, so that a template and a supporting structure are conveniently installed, S3, steel bar processing and binding are performed, S4 and template installation are performed, the template is assembled according to the design size by adopting a bamboo plywood with the thickness of 15mm, braces adopt 5 × 10cm square timber, the surface of the template is cleaned and brushed with a release agent, and S5 and concrete pouring are performed.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an anchor rod lattice slope protection construction method based on a tunnel underground excavation section permanent side and top slope.
Background
The lattice beam slope protection technology is characterized in that the lattice beam and the anchor rod are used for transferring soil pressure on the surface of a slope body to the lattice beam, the soil pressure is transferred to the anchor rod through the lattice beam, the anchor rod transfers the soil pressure transferred by the lattice beam to a stable soil layer, and the purposes of maintaining the stability of the slope body and preventing the collapse of the slope body from affecting the life or property safety of people are achieved. The lattice itself is therefore merely a force-transmitting structure, and the reinforcing anti-slip forces are provided primarily by the anchor or cable at the lattice structure points. However, the anchor rod lattice of the permanent side and elevation slope of the existing tunnel underground excavation section is not easy to fix in the construction process, so that a casting body is easy to deform, and the existing anchor rod lattice construction method easily causes uneven stress of the lattice anchor rod, so that the stability of slope maintenance is poor.
Disclosure of Invention
The invention aims to provide an anchor rod lattice slope protection construction method based on a permanent side and top slope of a tunnel underground excavation section, which solves the technical problems that anchor rod lattices are not easy to fix in the existing anchor rod lattice construction process, a casting body is easy to deform, and the existing anchor rod lattice construction method is easy to cause uneven stress of lattice anchor rods and poor stability of slope body maintenance.
In order to achieve the purpose, the invention provides the following technical scheme:
an anchor rod lattice slope protection construction method based on a tunnel underground excavation section permanent side and elevation slope comprises the following steps:
s1, measurement lofting: finishing the construction of the anchor rod, manually finishing the slope ratio of the excavated slope body to meet the requirements, and then measuring and releasing the position of the lattice beam and the construction starting range;
s2, slope grooving: manually excavating grooves according to the positions and sizes of the lattice beams measured by measuring personnel, wherein the grooves are respectively expanded and excavated by 20cm outside the structural lines on the two sides of the lattice beams, so that templates and supporting structures are conveniently installed; after the groove is dug, the inner broken soil and loose slag are removed, so that the foundation is guaranteed to be compact, and the lattice beam and the slope surface can be well combined;
s3, processing and binding steel bars: the reinforcing steel bars are processed in a centralized manner in a processing field, and then are transported to the field by using a flat car and a crane according to the requirement; before processing, oil stain and rusty scale on the surface of the steel bar are cleaned, a hook and a joint during steel bar processing meet the standard requirements, the joint positions of the stressed steel bars are staggered, and the percentage of the cross-sectional area of the joint of the stressed steel bar arranged in the overlap length area to the total cross-sectional area meets the relevant standard requirements;
s4, installing the templates, namely assembling the templates according to the design size by adopting bamboo plywood with the thickness of 15mm, adopting 5 × 10cm square wood as straps, cleaning the surfaces of the templates and brushing a release agent;
and S5, pouring concrete.
Further, in S3, after the steel bars are processed, the processed steel bars are transported to an accessory of a working face by an automobile and manually transported to the working face for arrangement and construction; before installation, the control points are measured and released according to the installation sequence of the reinforcing steel bars of different types; when binding, firstly, the steel bars of the lattice beam in one direction are bound, and the whole lattice beam is lifted in the groove after the steel bar cage of the lattice beam is bound outside the groove, and is adjusted and fixed; then binding latticed beam steel bars in the other direction, wherein the latticed beam main bars in the direction need to penetrate into the steel reinforcement cage bound in advance, and the stirrups need to be installed while penetrating through the main bars according to the latticed beam spacing; factors such as a protective layer, the diameter and the like need to be considered when the steel bar is installed, the protective layer is padded out by using a cushion block which is made in advance, and the thickness of the protective layer of the lattice beam steel bar is 5.0 cm.
Further, the template installation process in S4 includes:
s401: before erecting the formwork, firstly checking the construction quality of the steel reinforcement framework, making a record, and then erecting the formwork;
s402: when the templates are assembled, the templates on two sides are firstly installed, and before the templates are installed, the position and the height of the templates are controlled by hanging ropes; placing the template into a preset position, adjusting according to the thread ropes, controlling the position of the upper opening of the template, and laying down the underdug bottom; temporarily supporting a pad by using a wood wedge after the bottom is overetched, reinforcing after a template is adjusted, and then plugging a bottom gap by using mortar; adjusting and reinforcing the templates at the two sides, and then installing a top die;
s403, reinforcing two templates by using phi 12mm split bolts, arranging two rows in the height direction, enabling the distance between the length direction and the two steel pipes to be 60cm, and enabling double steel pipes to be back ridges, supporting the outer sides of straps of the two templates by using short square timbers and wood wedges to ensure that a beam body cannot be subjected to integral deviation in the pouring process, sleeving PVC pipes outside the split bolts, installing conical sleeves at two ends, tightly jacking the templates by using the conical sleeves as top template ribs, removing the conical sleeves after construction, forming pull rod processing holes with uniform size, withdrawing the conical sleeves and the split bolts for recycling after construction, sealing pull rod holes formed by the conical sleeves by using mortar, nailing nails along side templates after the top templates are pressed on the side templates, nailing the top templates and the side templates together, enabling the nails to be 30cm apart, pressing two phi 5 × 10cm square timbers on the upper portion of the top template to be back straps, adding pull rods at cross nodes, welding rods, welding the anchor rods, anchor rods are welded together, the length of the pull rods, the top template of the beam body between the nodes are pressed on the two sides by using a phi 12mm split bolt, and are connected with the top template, and the concrete pipes are nailed together, and the concrete pipes are not less than 20cm, and the distance between the concrete is not less than 20cm, and;
s404: the top die is provided with a feed opening every 1.5, and the feed openings are plugged one by one along with the rising of the pouring height;
s405, after the top die is installed, erecting single-row racks on the full slope surface of the upper part of the top die, wherein the single-row racks can be used as a passage and can also enhance the integrity and the anti-floating property of the template, the spacing between the single-row racks is 1.5m × 1.5.5 m, the single-row racks are connected with a template reinforcing system through fasteners or reinforcing steel bars, soil anchoring nails are connected with soil anchoring nails when encountering soil, and anchor rods are connected with anchor rods and anchor rods through the reinforcing steel bars when encountering the soil anchoring nails;
s406: checking the quality of the vertical mold, and making an original quality inspection record.
Further, in S5, the concrete is marked as C35, commercial concrete is adopted, a concrete tank truck is used for transportation, a concrete truck pump is used for pouring at a place where the concrete truck pump can reach during pouring, and a chute is arranged at a place where the truck pump can not reach and is used for pouring by the concrete pump.
Further, in S5, when a concrete pump is used for pumping and pouring, a pump pipe is connected to the top of the side slope and then communicated to each feed opening by a chute or a hose for pouring; the vibration adopts a phi 30 flexible shaft vibrating rod to vibrate, and the layered blanking and the layered vibration are carried out, wherein the layered thickness is 30-40 cm. Because the lattice beam is arranged along the slope and has a large included angle with the vertical direction, the lattice beam is not beneficial to exhaust and vibration, the layering thickness (the thickness of the layer is 30-40 cm) needs to be reduced during pouring, and the vibration needs to be enhanced. Because the lattice beam top mold is not easy to reinforce, the pouring speed can be adjusted according to the initial setting time of field actual measurement when the air temperature is higher. The phenomena of mold expansion and bin collapse caused by the increase of the side pressure of the template due to the excessively high pouring speed are avoided. When pouring, arranging a professional carpenter to see the mold, timely informing a cast-in-place commander to suspend pouring of the part when slurry leakage and mold expansion are found, and continuing construction after the completion of treatment.
Further, in S5, the pouring of the frame concrete must be performed continuously, and the frame concrete must be vibrated while being poured; if concrete slides in the pouring process, quick setting or early strengthening concrete can be adopted or a cover die is used for pressing; if the pouring is interrupted due to reasons, when the concrete amount in the bin is large, the joint is vibrated and compacted, and the burrs are formed after initial setting; and if the amount of the concrete poured in the bin is small, the bottom template is disassembled, the concrete is removed, and then the template is sealed again for secondary pouring.
According to the anchor rod lattice slope protection construction method based on the permanent side and top slopes of the tunnel underground excavation section, the anchor rod lattice is stable in arrangement, the casting body is not prone to deformation, all structures of the anchor rod lattice can be uniformly stressed, and the slope body is good in maintenance stability.
Detailed Description
The technical solutions of the present invention are described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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.
The anchor rod lattice slope protection construction method based on the permanent side and top slopes of the tunnel underground excavation section comprises the following steps:
s1, measurement lofting: finishing the construction of the anchor rod, manually finishing the slope ratio of the excavated slope body to meet the requirements, and then measuring and releasing the position of the lattice beam and the construction starting range;
s2, slope grooving: manually excavating grooves according to the positions and sizes of the lattice beams measured by measuring personnel, wherein the grooves are respectively expanded and excavated by 20cm outside the structural lines on the two sides of the lattice beams, so that templates and supporting structures are conveniently installed; after the groove is dug, the inner broken soil and loose slag are removed, so that the foundation is guaranteed to be compact, and the lattice beam and the slope surface can be well combined;
s3, processing and binding steel bars: the reinforcing steel bars are processed in a centralized manner in a processing field, and then are transported to the field by using a flat car and a crane according to the requirement; before processing, oil stain and rusty scale on the surface of the steel bar are cleaned, a hook and a joint during steel bar processing meet the standard requirements, the joint positions of the stressed steel bars are staggered, and the percentage of the cross-sectional area of the joint of the stressed steel bar arranged in the overlap length area to the total cross-sectional area meets the relevant standard requirements;
after the steel bars are processed, the steel bars are transported to an operation surface accessory by an automobile and manually transported to the operation surface for arrangement and construction; before installation, the control points are measured and released according to the installation sequence of the reinforcing steel bars of different types; when binding, firstly, the steel bars of the lattice beam in one direction are bound, and the whole lattice beam is lifted in the groove after the steel bar cage of the lattice beam is bound outside the groove, and is adjusted and fixed; then binding latticed beam steel bars in the other direction, wherein the latticed beam main bars in the direction need to penetrate into the steel reinforcement cage bound in advance, and the stirrups need to be installed while penetrating through the main bars according to the latticed beam spacing; factors such as a protective layer, the diameter and the like need to be considered when the steel bar is installed, the protective layer is padded out by using a cushion block which is made in advance, and the thickness of the protective layer of the lattice beam steel bar is 5.0 cm.
In S3, the allowable deviation of the steel bar processing is as shown in table 1 below; the allowable deviation of the installation of the reinforcing bars is as follows in table 2.
Table 1: steel bar processing allowable deviation table
| Serial number | Item | Tolerance deviation (mm) |
| 1 | Deviation of net size of total length of stressed reinforcing bar | ±10 |
| 2 | Deviation of length of each part of stirrup | ±5 |
| 3 | Deviation of the position of the bending start of the reinforcing bars | ±20 |
| 4 | Deviation of angle of reinforcement | ±3° |
Table 2: steel bar processing allowable deviation table
S4, installing the templates, namely assembling the templates according to the design size by adopting bamboo plywood with the thickness of 15mm, adopting 5 × 10cm square wood as straps, cleaning the surfaces of the templates and brushing a release agent;
the template installation process in S4 includes:
s401: before erecting the formwork, firstly checking the construction quality of the steel reinforcement framework, making a record, and then erecting the formwork;
s402: when the templates are assembled, the templates on two sides are firstly installed, and before the templates are installed, the position and the height of the templates are controlled by hanging ropes; placing the template into a preset position, adjusting according to the thread ropes, controlling the position of the upper opening of the template, and laying down the underdug bottom; temporarily supporting a pad by using a wood wedge after the bottom is overetched, reinforcing after a template is adjusted, and then plugging a bottom gap by using mortar; adjusting and reinforcing the templates at the two sides, and then installing a top die;
s403, reinforcing two templates by using phi 12mm split bolts, arranging two rows in the height direction, enabling the distance between the length direction and the two steel pipes to be 60cm, and enabling double steel pipes to be back ridges, supporting the outer sides of straps of the two templates by using short square timbers and wood wedges to ensure that a beam body cannot be subjected to integral deviation in the pouring process, sleeving PVC pipes outside the split bolts, installing conical sleeves at two ends, tightly jacking the templates by using the conical sleeves as top template ribs, removing the conical sleeves after construction, forming pull rod processing holes with uniform size, withdrawing the conical sleeves and the split bolts for recycling after construction, sealing pull rod holes formed by the conical sleeves by using mortar, nailing nails along side templates after the top templates are pressed on the side templates, nailing the top templates and the side templates together, enabling the nails to be 30cm apart, pressing two phi 5 × 10cm square timbers on the upper portion of the top template to be back straps, adding pull rods at cross nodes, welding rods, welding the anchor rods, anchor rods are welded together, the length of the pull rods, the top template of the beam body between the nodes are pressed on the two sides by using a phi 12mm split bolt, and are connected with the top template, and the concrete pipes are nailed together, and the concrete pipes are not less than 20cm, and the distance between the concrete is not less than 20cm, and;
s404: the top die is provided with a feed opening every 1.5, and the feed openings are plugged one by one along with the rising of the pouring height;
s405, after the top die is installed, erecting single-row racks on the full slope surface of the upper part of the top die, wherein the single-row racks can be used as a passage and can also enhance the integrity and the anti-floating property of the template, the spacing between the single-row racks is 1.5m × 1.5.5 m, the single-row racks are connected with a template reinforcing system through fasteners or reinforcing steel bars, soil anchoring nails are connected with soil anchoring nails when encountering soil, and anchor rods are connected with anchor rods and anchor rods through the reinforcing steel bars when encountering the soil anchoring nails;
s406: checking the quality of the vertical mold, and making an original quality inspection record.
And S5, pouring concrete.
And in S5, the concrete is marked as C35 and is transported by a commercial concrete tank truck, a place which is within the reach of a concrete truck pump is poured by the truck pump, and a chute which is not within the reach of the truck pump is erected and is poured by the concrete pump.
When a concrete pump is used for pumping and pouring, a pump pipe is connected to the top of the side slope and then communicated to each feed opening by a chute or a hose for pouring; the vibration adopts a phi 30 flexible shaft vibrating rod to vibrate, and the layered blanking and the layered vibration are carried out, wherein the layered thickness is 30-40 cm. Because the lattice beam is arranged along the slope and has a large included angle with the vertical direction, the lattice beam is not beneficial to exhaust and vibration, the layering thickness (the thickness of the layer is 30-40 cm) needs to be reduced during pouring, and the vibration needs to be enhanced. Because the lattice beam top mold is not easy to reinforce, the pouring speed can be adjusted according to the initial setting time of field actual measurement when the air temperature is higher. The phenomena of mold expansion and bin collapse caused by the increase of the side pressure of the template due to the excessively high pouring speed are avoided. When pouring, arranging a professional carpenter to see the mold, timely informing a cast-in-place commander to suspend pouring of the part when slurry leakage and mold expansion are found, and continuing construction after the completion of treatment.
In S5, pouring frame concrete must be continuously operated, and pouring and vibrating are carried out simultaneously; if concrete slides in the pouring process, quick setting or early strengthening concrete can be adopted or a cover die is used for pressing; if the pouring is interrupted due to reasons, when the concrete amount in the bin is large, the joint is vibrated and compacted, and the burrs are formed after initial setting; and if the amount of the concrete poured in the bin is small, the bottom template is disassembled, the concrete is removed, and then the template is sealed again for secondary pouring.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides an anchor rod lattice slope protection construction method based on tunnel undercut section permanent side and heading slope which characterized in that: the method comprises the following steps:
s1, measurement lofting: finishing the construction of the anchor rod, manually finishing the slope ratio of the excavated slope body to meet the requirements, and then measuring and releasing the position of the lattice beam and the construction starting range;
s2, slope grooving: manually excavating grooves according to the positions and sizes of the lattice beams measured by measuring personnel, wherein the grooves are respectively expanded and excavated by 20cm outside the structural lines on the two sides of the lattice beams, so that templates and supporting structures are conveniently installed; after the groove is dug, the inner broken soil and loose slag are removed, so that the foundation is guaranteed to be compact, and the lattice beam and the slope surface can be well combined;
s3, processing and binding steel bars: the reinforcing steel bars are processed in a centralized manner in a processing field, and then are transported to the field by using a flat car and a crane according to the requirement; before processing, oil stain and rusty scale on the surface of the steel bar are cleaned, a hook and a joint during steel bar processing meet the standard requirements, the joint positions of the stressed steel bars are staggered, and the percentage of the cross-sectional area of the joint of the stressed steel bar arranged in the overlap length area to the total cross-sectional area meets the relevant standard requirements;
s4, installing the templates, namely assembling the templates according to the design size by adopting bamboo plywood with the thickness of 15mm, adopting 5 × 10cm square wood as straps, cleaning the surfaces of the templates and brushing a release agent;
and S5, pouring concrete.
2. The anchor rod lattice slope protection construction method based on the tunnel underground excavation section permanent side and top slope according to claim 1, characterized in that: s3, after the steel bars are processed, the steel bars are transported to an accessory of a working face by an automobile and manually transported to the working face for arrangement and construction; before installation, the control points are measured and released according to the installation sequence of the reinforcing steel bars of different types; when binding, firstly, the steel bars of the lattice beam in one direction are bound, and the whole lattice beam is lifted in the groove after the steel bar cage of the lattice beam is bound outside the groove, and is adjusted and fixed; then binding latticed beam steel bars in the other direction, wherein the latticed beam main bars in the direction need to penetrate into the steel reinforcement cage bound in advance, and the stirrups need to be installed while penetrating through the main bars according to the latticed beam spacing; factors such as a protective layer, the diameter and the like need to be considered when the steel bar is installed, the protective layer is padded out by using a cushion block which is made in advance, and the thickness of the protective layer of the lattice beam steel bar is 5.0 cm.
3. The anchor rod lattice slope protection construction method based on the tunnel underground excavation section permanent side and top slope according to claim 1, characterized in that: the template installation process in S4 includes:
s401: before erecting the formwork, firstly checking the construction quality of the steel reinforcement framework, making a record, and then erecting the formwork;
s402: when the templates are assembled, the templates on two sides are firstly installed, and before the templates are installed, the position and the height of the templates are controlled by hanging ropes; placing the template into a preset position, adjusting according to the thread ropes, controlling the position of the upper opening of the template, and laying down the underdug bottom; temporarily supporting a pad by using a wood wedge after the bottom is overetched, reinforcing after a template is adjusted, and then plugging a bottom gap by using mortar; adjusting and reinforcing the templates at the two sides, and then installing a top die;
s403, reinforcing two templates by using phi 12mm split bolts, arranging two rows in the height direction, enabling the distance between the length direction and the two steel pipes to be 60cm, and enabling double steel pipes to be back ridges, supporting the outer sides of straps of the two templates by using short square timbers and wood wedges to ensure that a beam body cannot be subjected to integral deviation in the pouring process, sleeving PVC pipes outside the split bolts, installing conical sleeves at two ends, tightly jacking the templates by using the conical sleeves as top template ribs, removing the conical sleeves after construction, forming pull rod processing holes with uniform size, withdrawing the conical sleeves and the split bolts for recycling after construction, sealing pull rod holes formed by the conical sleeves by using mortar, nailing nails along side templates after the top templates are pressed on the side templates, nailing the top templates and the side templates together, enabling the nails to be 30cm apart, pressing two phi 5 × 10cm square timbers on the upper portion of the top template to be back straps, adding pull rods at cross nodes, welding rods, welding the anchor rods, anchor rods are welded together, the length of the pull rods, the top template of the beam body between the nodes are pressed on the two sides by using a phi 12mm split bolt, and are connected with the top template, and the concrete pipes are nailed together, and the concrete pipes are not less than 20cm, and the distance between the concrete is not less than 20cm, and;
s404: the top die is provided with a feed opening every 1.5, and the feed openings are plugged one by one along with the rising of the pouring height;
s405, after the top die is installed, erecting single-row racks on the full slope surface of the upper part of the top die, wherein the single-row racks can be used as a passage and can also enhance the integrity and the anti-floating property of the template, the spacing between the single-row racks is 1.5m × 1.5.5 m, the single-row racks are connected with a template reinforcing system through fasteners or reinforcing steel bars, soil anchoring nails are connected with soil anchoring nails when encountering soil, and anchor rods are connected with anchor rods and anchor rods through the reinforcing steel bars when encountering the soil anchoring nails;
s406: checking the quality of the vertical mold, and making an original quality inspection record.
4. The anchor rod lattice slope protection construction method based on the tunnel underground excavation section permanent side and top slope according to claim 1, characterized in that: and in S5, the concrete is marked as C35 and is transported by a commercial concrete tank truck, a place which is within the reach of a concrete truck pump is poured by the truck pump, and a chute which is not within the reach of the truck pump is erected and is poured by the concrete pump.
5. The anchor rod lattice slope protection construction method based on the tunnel underground excavation section permanent side and top slope according to claim 1, characterized in that: s5, when a concrete pump is used for pumping and pouring, a pump pipe is connected to the top of the side slope and then communicated to each feed opening by a chute or a hose for pouring; the vibration adopts a phi 30 flexible shaft vibrating rod to vibrate, and the layered blanking and the layered vibration are carried out, wherein the layered thickness is 30-40 cm.
6. The anchor rod lattice slope protection construction method based on the tunnel underground excavation section permanent side and top slope according to claim 1, characterized in that: in S5, pouring frame concrete must be continuously operated, and pouring and vibrating are carried out simultaneously; if concrete slides during pouring, quick setting or early strengthening concrete or pressing by a cover die can be adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010192494.3A CN111379262A (en) | 2020-03-18 | 2020-03-18 | Anchor rod lattice slope protection construction method based on tunnel underground excavation section permanent side and top slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010192494.3A CN111379262A (en) | 2020-03-18 | 2020-03-18 | Anchor rod lattice slope protection construction method based on tunnel underground excavation section permanent side and top slope |
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| CN111379262A true CN111379262A (en) | 2020-07-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575361A (en) * | 2022-03-25 | 2022-06-03 | 龙岩紫金山公园投资集团有限公司 | Filling slope anchor rod frame beam supporting method based on dynamic compaction reverse excavation treatment |
-
2020
- 2020-03-18 CN CN202010192494.3A patent/CN111379262A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 中国水利水电第十一工程局有限公司: ""XX工程XX西侧边坡支护施工专项方案"", 《百度文库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575361A (en) * | 2022-03-25 | 2022-06-03 | 龙岩紫金山公园投资集团有限公司 | Filling slope anchor rod frame beam supporting method based on dynamic compaction reverse excavation treatment |
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Application publication date: 20200707 |