CN112281877A - Cutting high slope construction method - Google Patents
Cutting high slope construction method Download PDFInfo
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- CN112281877A CN112281877A CN202011347102.2A CN202011347102A CN112281877A CN 112281877 A CN112281877 A CN 112281877A CN 202011347102 A CN202011347102 A CN 202011347102A CN 112281877 A CN112281877 A CN 112281877A
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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
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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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
- E02D5/22—Piles
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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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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/40—Miscellaneous comprising stabilising elements
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Abstract
The invention relates to the field of slope construction and building, and particularly provides a construction method of a cutting high slope. According to the construction method of the cutting high slope, all anti-slide piles designed on the slope are constructed before the slope is excavated, so that the whole high slope engineering is integrally pre-reinforced before the excavation, and the integral stability of the slope is improved; and when the side slope is constructed layer by layer from top to bottom, namely, the earthwork and the stone corresponding to the side slope layer are dug layer by layer from top to bottom and corresponding side slope protection is carried out, the earthwork and the stone excavation of the next layer of side slope layer can not be stopped because of the construction of the slide-resistant piles arranged correspondingly at the front side slope layer, the construction period is greatly shortened, the work efficiency is improved, and the stability and the safety of the whole side slope in the construction process are improved.
Description
Technical Field
The invention relates to the field of slope construction and building, in particular to a method for constructing a cutting high slope.
Background
In the southwest mountain areas of China, due to the complex landform and landform, the construction of infrastructures such as roads, railways, water and electricity inevitably meets deep-cut high slope engineering. The high slope refers to a soil slope with the height of more than 20m and less than 100m or a rock slope with the height of more than 30m and less than 100 m. These high slope projects often have poor geological conditions, rock mass joint cracks develop, weathering is serious, collapse is easy to occur in the process of slope excavation construction, and even engineering landslide is caused. Therefore, measures such as arranging anchor rods or anchor cable frames in the middle of the side slope for protection, arranging one or more rows of anti-slide piles on the platform and the like are adopted, and the anti-slide piles are additionally arranged on the slope toe for reinforcing the slope toe, so that the long-term stability of the operation period of the side slope is ensured through the protection system. In the aspect of construction, the traditional method comprises the following steps: and (5) carrying out graded excavation and gradual reinforcement. As a traditional slope construction method, the method is mature in technology and wide in application, and when the height of the slope is low or the construction period is not limited by time, the traditional construction method is good in effect. However, the method has the following disadvantages: when the side slope is higher and more graded, the traditional graded excavation and step-by-step reinforcement flow operation construction method is adopted, the side slope protection, the earth and stone excavation and the anti-slide pile excavation and pouring can be circularly implemented according to the sequence, and the anti-slide pile needs pile jumping construction in the implementation process, so the excavation period is long; after pouring is completed, the pile body strength needs to be waited for to reach the design strength, and the next grade of slope excavation construction can be carried out only after relevant detection, so that the construction period of the traditional method is long and the efficiency is low.
Disclosure of Invention
The invention aims to: aiming at the problems that in the construction process of the traditional construction method of the cutting high slope in the prior art, slope protection, earth and rockfill excavation and slide-resistant pile excavation pouring can only be circularly implemented in sequence, and the excavation period is long; after pouring is completed, the pile body strength needs to be waited for to reach the design strength, and the next grade of slope excavation construction can be carried out only after relevant detection, so that the problems of long construction period and low efficiency of the traditional method are caused, and the construction method of the cutting high slope is provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
a cutting high slope construction method comprises the following steps:
the method comprises the following steps: constructing all the slide-resistant piles of all the rows on the side slope according to the design;
step two: and (4) carrying out layered construction on the side slope from top to bottom according to the designed slope rate, and after excavating the earthwork of the side slope layer corresponding to the slope bottom, constructing a retaining structure at the side slope layer corresponding to the slope bottom, so that the side slope construction is finished.
Wherein, before the step one, the method further comprises the steps of: and constructing a slope top surface water intercepting and draining system. The construction of the surface water interception and drainage system is consistent with that of the prior art, and the surface water interception and drainage system is used for draining slope surface catchment and avoiding the influence on a side slope construction area, and can adopt facilities such as the existing drainage ditch. In the third step, the layered construction refers to dividing the side slope into a plurality of side slope layers from top to bottom according to the designed slope rate, performing earth and stone excavation construction and side slope protection engineering construction on each side slope layer, namely excavating the side slope layers step by step, constructing measures for side slope protection, water prevention and drainage and side slope monitoring step by step, and chiseling the empty pile part of the anti-slide pile of each side slope layer, wherein the anti-slide pile comprises pre-reinforced piles at each side slope platform and cut anti-slide piles at the toe.
The retaining structure is used for protecting a side slope formed after excavation of soil and stone on a bottommost side slope layer, and the setting mode of the retaining structure is consistent with that of the prior art, such as the following steps: pile sheet walls, retaining walls, or inter-pile soil nailing walls, etc. The construction positions of the anti-slide piles are designed according to the slope rate of the side slope, the anti-slide piles are divided into a plurality of rows from top to bottom according to the slope rate of the side slope, and a plurality of anti-slide piles are arranged in each row at certain intervals along the transverse direction of the side slope. According to the construction method of the cutting high slope, all the anti-slide piles designed on the slope are constructed before the slope is excavated, so that the whole high slope engineering is integrally pre-reinforced before the excavation, and the integral stability of the slope is improved; and when the side slope is constructed layer by layer from top to bottom, even if the earthwork corresponding to the side slope layer is excavated layer by layer from top to bottom and the corresponding side slope protection is carried out, the earthwork excavation of the next side slope layer is not stopped because of the construction of the slide-resistant piles arranged correspondingly at the front side slope layer, the construction period is greatly shortened, the work efficiency is improved, and the stability and the safety of the whole side slope in the construction process are ensured.
Preferably, in the first step, each row of slide-resistant piles is constructed synchronously, and the slide-resistant piles in each row are constructed by adopting a pile jumping construction method.
Different from the traditional side slope construction method, the step-by-step excavation and step-by-step protection are carried out, then the step-by-step construction of the side slope slide-resistant piles is carried out, the mode that the construction of each row of slide-resistant piles is started simultaneously, the construction of each row of slide-resistant piles is carried out synchronously, and the construction of each row of slide-resistant piles is completed synchronously is adopted, so that the time for constructing all slide-resistant piles can be reduced, the construction time of the whole construction method of the cutting high side slope is further saved, and the construction period can be shortened. And the adjacent slide-resistant piles in each row are constructed by adopting a pile jumping construction method, so that the strength of the slide-resistant piles is prevented from being reduced due to the influence of the construction of the adjacent slide-resistant piles in the same row.
Preferably, in the step one, each slide-resistant pile is constructed by the following steps: the method comprises the following steps of constructing a pile well of the anti-slide pile, constructing a reinforcement cage to a designed elevation position in the pile well, and pouring concrete into the pile well to the designed elevation position.
Preferably, the pile well of each slide-resistant pile is provided with a reinforced concrete retaining wall, so that the safety of the slide-resistant pile construction process is ensured.
Preferably, in the second step, the step of constructing the side slope layer by layer includes:
a: excavating the earth and stone side of the side slope layer to form an excavation platform;
b: constructing a slope surface protection project corresponding to the side slope layer;
c: and pouring concrete on the inner side of the excavation platform according to the design height to form a side slope platform.
By adopting the construction method, the construction of each layer of slope layer layered according to the designed slope rate can be quickly and stably completed, and the stability and the safety of the side slope in the construction process of each layer of slope layer can be improved.
Preferably, the step B comprises the steps of:
b1: constructing anchor cable frame beams or anchor rod frame beams on the side slopes corresponding to the side slope layers;
b2: and constructing anchor cables at the joints of the anchor cable frame beams, constructing anchor rods at the joints of the anchor rod frame beams, completing construction of all the anchor cables and all the anchor rods on the corresponding side slope layer, and completing construction of slope protection corresponding to the side slope layer.
And the slope surface of each layer of side slope is protected by adopting the anchor cable frame beams or the anchor rod frame beams, so that the stability of the side slope is improved.
Preferably, the step C further includes the steps of: and constructing a platform water intercepting and draining system above the slope platform.
The platform water interception and drainage system is constructed on the slope platform, and can adopt a drainage ditch which is longitudinally arranged on the slope platform along the slope and used for draining the slope catchment corresponding to the slope layer above the slope platform.
Preferably, the method further comprises the following steps: in the step A, when earth and stone corresponding to the side slope layer is excavated to the pile top elevation of the slide-resistant piles in the corresponding row, pile top empty pile parts of the slide-resistant piles in the corresponding row are dismantled, and all the slide-resistant piles in the row are subjected to nondestructive testing.
When this layer of side slope layer of construction, after the earth and rockfill that this layer of side slope layer of excavation corresponds, if the empty stake part of slide-resistant pile appears, just break the empty post of slide-resistant pile earlier, can increase the excavation platform's that this layer of side slope layer corresponds space, and then can increase the operation space of the domatic protection work progress of side slope that the side slope layer corresponds, be favorable to domatic protection construction. And the anti-slide pile is subjected to nondestructive testing, so that the danger caused by the damage of the anti-slide pile can be eliminated, and the construction safety is improved.
Preferably, the construction method of the cutting high slope further comprises the following steps: and arranging a plurality of slope monitoring facilities along the slope, wherein the slope monitoring facilities are respectively positioned at different vertical heights of the slope, and the slope monitoring facilities are implemented after the excavation of each slope layer is completed.
Before constructing the slide-resistant piles or before constructing each layer of slope layer, constructing the slope monitoring facility, wherein the slope monitoring facility can adopt the prior technical scheme, such as adopting a fiber grating crack meter, a fiber grating inclinometer, a fiber grating liquid level meter and a differential pressure type fiber grating settlement sensor to monitor the surface deformation of the slope, the deep deformation of the slope, the underground water level, the ground settlement and the like, and giving early warning in time to ensure the construction safety when constructing the slide-resistant piles and constructing each layer of slope layer. Adopt at least three side slope monitoring facilities, can follow the vertical upper and middle and three even whole side slopes of lower position of side slope monitoring.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
according to the construction method of the cutting high slope, all the anti-slide piles designed on the slope are constructed before the slope is excavated, so that the whole high slope engineering is integrally pre-reinforced before the excavation, and the integral stability of the slope is improved. And each row of anti-slide piles are synchronously constructed in advance, only slope protection and platform intercepting ditch construction are needed when all levels of slope layers are excavated, and each row of anti-slide piles does not need to be constructed step by step, so that the construction period is greatly shortened, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic view of a construction area of a cutting high slope construction method according to embodiment 1;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
fig. 3 is a construction view of the slide pile according to embodiment 1;
FIG. 4 is a schematic view after top two side slope courses are constructed in example 1;
fig. 5 is a schematic view of completion of the slope construction in embodiment 1.
Icon: 1-a surface water intercepting and draining system; 2-anti-slide pile; 3-slope monitoring facilities; 4-side slope layer; 5, excavating a platform; 61-anchor cable frame beam; 62-anchor cable; 7-a side slope platform; 71-platform intercepting and draining system; 8-frame beam foundation; 9-supporting structure.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The present embodiment provides a method for constructing a cutting high slope, wherein the high slope of the present embodiment is divided into six layers of slope structures according to slope rates from top to bottom, as shown in fig. 1-2, the first layer of slope to the sixth layer of slope are sequentially arranged from top to bottom, and each layer of slope structure corresponds to one slope layer 4. The construction method of the cutting high slope comprises the following steps:
the method comprises the following steps: all the slide-resistant piles 2 in each row are preferably constructed on the side slope according to the design;
step two: and (3) carrying out layered construction on the side slope from top to bottom according to the designed slope rate, and after the earth and stone of the side slope layer 4 corresponding to the slope bottom are dug, constructing a retaining structure 9 at the side slope layer 4 corresponding to the slope bottom, and finishing the side slope construction.
Specifically, the surface water intercepting and draining system 1 is constructed on the top of the slope, in this embodiment, the surface water intercepting and draining system 1 is a drainage ditch transversely arranged along the slope, and is used for preventing accumulated water on the top of the slope from flowing downwards along the slope surface, so as to prevent the construction area of the slope from being affected.
Then, a slope monitoring facility 3 is constructed between the surface water intercepting and draining system 1 and the uppermost slope layer 4, in the embodiment, the slope monitoring facility 3 can adopt the prior art scheme, such as adopting a fiber grating crack meter, a fiber grating inclinometer, a fiber grating liquid level meter and a differential pressure type fiber grating settlement sensor to monitor the slope surface deformation, the slope deep deformation, the ground water level and the ground settlement, giving early warning in time and ensuring the subsequent construction safety, and other devices capable of carrying out safety monitoring on the slope can also be adopted.
After the construction is completed, executing the following steps: constructing all the slide-resistant piles 2 of each row on the side slope according to a design drawing until all the slide-resistant piles 2 are constructed; in this embodiment, the construction is started and the rows of the anti-slide piles 2 are constructed simultaneously in a pile-jumping construction mode, and the construction mode of each anti-slide pile 2 is as follows: the pile well of this friction pile 2 is under construction earlier, then construction steel reinforcement cage to the design elevation position in the pile well, then concreting to the design elevation position in the pile well, then detect this friction pile 2 after pile body concrete reaches design strength, after satisfying the design requirement, the construction of step two is accomplished, as shown in fig. 3. And the pile well of the slide-resistant pile 2 is made of reinforced concrete dado.
After the implementation of the first step is completed, executing a second step: and (3) carrying out layered construction on the side slope from top to bottom according to the designed slope rate, excavating and removing the earth and stone of the side slope layer 4 corresponding to the slope bottom, and then constructing a retaining structure 9 at the side slope layer 4 corresponding to the slope bottom to finish the side slope construction. The design slope rate refers to the slope rate marked in the design drawing, and each side slope layer 4 corresponds to one design slope rate.
Specifically, the construction of the slope layer 4 corresponding to the first layer of slope comprises the following steps:
a: excavating the earth and stone side of the side slope layer 4 to form an excavation platform 5;
then removing pile top empty pile parts of all the slide-resistant piles 2 in the row, and carrying out nondestructive testing on all the slide-resistant piles 2 in the row;
and B, after the detection is qualified, executing the step B: carrying out slope protection corresponding to the slope layer 4;
wherein the step B comprises the following steps:
b1: constructing an anchor cable frame beam 61 or an anchor rod frame beam from top to bottom; when step B1 is executed, constructing a frame beam foundation 8 at the bottom of the anchor cable frame beam 61 or the anchor rod frame beam;
in this embodiment, after the frame beam foundation 8 is constructed: step B2 is then performed: and constructing anchor cables 62 at the joints of the anchor cable frame beams 61, or finishing the construction of all the anchor cables 62 to the corresponding slope layer 4, and finishing the slope protection engineering construction corresponding to the slope layer 4.
After the protection construction of the layer of slope is finished, executing the step C: the method comprises the steps of sealing an excavation platform 5 reaching a design elevation, pouring concrete on the inner side of the excavation platform 5 according to the design elevation to form a side slope platform 7, and constructing a platform water intercepting and draining system 71 above the side slope platform 7. In this embodiment, the slope platform 7 is formed by casting the inner side above the excavation platform 5, and a part of the outer side above the excavation platform 5, which is not cast as the object to be excavated in the next slope layer 4, is the object to be excavated in the next slope layer 4, and after the next slope layer 4 is excavated, the excavation platform 5 in the current layer is not existed. The platform water interception and drainage system 71 also adopts a drainage ditch structure, and can also be a cast-in-situ water retaining edge, as shown in fig. 2. Then, the side slope monitoring facilities 3 are buried in the side slope platform 7 at the bottom of the first side slope layer 4, and observation is carried out according to monitoring requirements.
When the concrete strength of the side slope protection structure corresponding to the first layer of side slope reaches the design requirement, excavating earth and rock of the side slope layer 4 corresponding to the second layer of side slope, and constructing the side slope layer 4 corresponding to the second layer of side slope according to the construction mode of the side slope layer 4 corresponding to the first layer of side slope, wherein the construction of the side slope layer 4 corresponding to the second layer of side slope is completed as shown in fig. 4.
And after the construction of the slope layer 4 corresponding to the second layer of side slope is finished, constructing the third layer to the fifth layer according to the construction modes of the slope layer 4 corresponding to the first layer of side slope and the slope layer 4 corresponding to the second layer of side slope.
Then dig the side slope layer 4's that the sixth floor side slope corresponds earthwork, then bury underground side slope monitoring facilities 3 to set up retaining structure 9 in sixth floor side slope department, retaining structure 9 can adopt pile sheet wall, barricade or stake soil nail wall etc. can stabilize the soil body of this domatic top, and its mode of setting is unanimous with prior art. After the construction of the retaining structure 9 is completed, the construction of the whole slope project is completed, as shown in fig. 5.
The main difference between the construction method of the cutting high slope and the traditional slope construction method is that the slide-resistant pile 2 is constructed firstly, and then the slope earthwork is excavated. Specifically, the construction of each row of the anti-slide piles 2 of the side slope is advanced to the first position of the whole engineering construction, and multiple rows of anti-slide piles are synchronously implemented. The whole side slope is pre-reinforced by the slide-resistant piles 2 which are preferentially constructed before unloading of side slope excavation, the earth and stone excavation of the subsequent side slope cannot be interrupted due to the construction of the slide-resistant piles 2, the construction period is greatly shortened, the work efficiency is improved, and the stability and the safety of the whole side slope in the construction process are ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A cutting high slope construction method is characterized by comprising the following steps:
the method comprises the following steps: all the slide-resistant piles (2) in each row are preferably constructed on the side slope according to the design;
step two: and (3) carrying out layered construction on the side slope from top to bottom according to the designed slope rate, excavating earth and stones of the side slope layer (4) corresponding to the slope bottom, and then constructing a retaining structure (9) at the side slope layer (4) corresponding to the slope bottom, thereby finishing the side slope construction.
2. The cutting high slope construction method according to claim 1, wherein in the first step, each row of anti-slide piles (2) is constructed synchronously, and the anti-slide piles (2) in each row are constructed by adopting a pile jumping construction method.
3. The cut high slope construction method according to claim 1, wherein in the step one, each slide-resistant pile (2) is constructed by the following steps: the method comprises the following steps of firstly constructing a pile well of the anti-slide pile (2), then constructing a reinforcement cage to a designed elevation position in the pile well, and then pouring concrete into the pile well to the designed elevation position.
4. A cut high slope construction method according to claim 3, characterized in that the pile well of each said slide-resistant pile (2) is a reinforced concrete retaining wall.
5. The cutting high slope construction method according to any one of claims 1 to 4, wherein in the second step, the step of slope layered construction comprises:
a: excavating the earth and stone side of the side slope layer (4) to form an excavation platform (5);
b: constructing a slope surface protection project corresponding to the side slope layer (4);
c: and (3) pouring concrete on the inner side of the excavation platform (5) according to the design height to form a side slope platform (7).
6. The cutting high slope construction method according to claim 5, wherein the step B comprises the following steps:
b1: constructing an anchor cable frame beam (61) or an anchor rod frame beam on a side slope corresponding to the side slope layer (4);
b2: and (2) constructing anchor cables (62) at the joints of the anchor cable frame beams (61), constructing anchor rods at the joints of the anchor rod frame beams, completing construction of all the anchor cables and all the anchor rods of the corresponding slope layer (4), and completing construction of slope protection corresponding to the slope layer (4).
7. The cutting high slope construction method according to claim 5, further comprising, in the step C: and constructing a platform water intercepting and draining system (71) above the slope platform (7).
8. The cutting high slope construction method according to claim 5, further comprising the steps of: in the step A, when earth and stone corresponding to the slope layer (4) is excavated to the pile top elevation of the slide-resistant piles (2) in the corresponding row, the pile top empty pile parts of the slide-resistant piles (2) in the row are dismantled, and all the slide-resistant piles (2) in the row are subjected to nondestructive testing.
9. The cutting high slope construction method according to claim 1, further comprising the steps of: the side slope monitoring system is characterized in that a plurality of side slope monitoring facilities (3) are arranged along a side slope, the side slope monitoring facilities (3) are respectively located at different longitudinal heights of the side slope, and the side slope monitoring facilities (3) are implemented after excavation of each side slope layer (4) is completed.
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| CN113463666A (en) * | 2021-07-12 | 2021-10-01 | 中国电建集团成都勘测设计研究院有限公司 | Row pile structure for soil cutting slope and construction method thereof |
| CN113624083A (en) * | 2021-07-12 | 2021-11-09 | 中国化学工程重型机械化有限公司 | Cutting earthwork construction method |
| CN113863125A (en) * | 2021-09-29 | 2021-12-31 | 中国建筑一局(集团)有限公司 | Bridge supporting structure on slope for easy-to-slip slope and construction method thereof |
| CN114687361A (en) * | 2021-12-09 | 2022-07-01 | 中国铁建大桥工程局集团有限公司 | Construction method for preventing landslide of side slope at inlet of flood discharge tunnel |
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| CN113463666A (en) * | 2021-07-12 | 2021-10-01 | 中国电建集团成都勘测设计研究院有限公司 | Row pile structure for soil cutting slope and construction method thereof |
| CN113624083A (en) * | 2021-07-12 | 2021-11-09 | 中国化学工程重型机械化有限公司 | Cutting earthwork construction method |
| CN113863125A (en) * | 2021-09-29 | 2021-12-31 | 中国建筑一局(集团)有限公司 | Bridge supporting structure on slope for easy-to-slip slope and construction method thereof |
| CN114687361A (en) * | 2021-12-09 | 2022-07-01 | 中国铁建大桥工程局集团有限公司 | Construction method for preventing landslide of side slope at inlet of flood discharge tunnel |
| CN114687361B (en) * | 2021-12-09 | 2024-05-03 | 中国铁建大桥工程局集团有限公司 | Construction method for flood discharge tunnel entrance side slope anti-slip slope |
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