A synchronous construction method for high-steep slopes

Abstract

The present invention discloses a synchronous construction method for high and steep slopes, which relates to the technical field of slope construction. The method includes dividing a plurality of construction areas along the height direction of the slope surface; installing a row of first anti-slip pile groups between two adjacent construction areas; and after erecting a passive protection net on top of the first anti-slip pile groups, the plurality of construction areas synchronously carry out slope protection construction. By dividing a plurality of construction areas, and installing a row of first anti-slip pile groups between two adjacent construction areas, and erecting a passive anti-slip net, the relative independence of the two adjacent construction areas can be ensured, and the partition of the passive protection net can prevent concrete or sand and gravel during construction from causing harm to construction workers in adjacent areas, thereby achieving synchronous construction of multiple areas and improving construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of slope construction, and in particular to a synchronous construction method for high and steep slopes. Background Art

[0002] With the rapid development of highway and railway construction in my country, more and more construction projects are being carried out in mountainous areas. Due to the deep canyons, steep valley slopes on both sides, large differences in terrain height, large slopes, poor slope geology, fragile vegetation, and many adverse geological hazards.

[0003] When the slope protection project is large in scale, the protection height is large, the protection range is wide, and the construction difficulty is high, if the traditional slope protection construction plan from high to low is adopted, it will take a long time to construct step by step. At the same time, due to the steep slope in the mountainous area and the limitation of the construction road, the construction sequence from high to low will further extend the slope protection construction time, and will also affect the subsequent main project construction period. The safety protection risk is high, the construction cost is high, and it is not conducive to the management of the construction project. Summary of the Invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide a synchronous construction method for high and steep slopes to solve the problems of long slope protection construction time and high safety protection risks in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] The present application provides a synchronous construction method for high and steep slopes, comprising the following steps:

[0007] Divide the slope into multiple construction areas along its height direction;

[0008] Install a row of first anti-slide pile groups between two adjacent construction areas;

[0009] After the passive protection net is erected on top of the first anti-slide pile group, slope protection construction is carried out simultaneously in the multiple construction areas.

[0010] In some optional embodiments, at least one row of second anti-slide pile groups is provided at intervals within the construction area to divide the construction area into multiple levels of sub-slopes.

[0011] In some optional embodiments, transverse bridleways are provided at the top and bottom of each of the multi-level sub-slopes.

[0012] In some optional embodiments, the step of installing a row of first anti-slide pile groups between two adjacent construction areas includes:

[0013] Open a horizontal construction passage between two adjacent construction areas mentioned above;

[0014] A row of the first anti-slip pile groups is installed above or below the construction channel.

[0015] In some optional embodiments, slope protection construction is carried out simultaneously in multiple construction areas, including laying lattice beams on the slope surfaces of the above construction areas.

[0016] In some optional embodiments, when laying lattice beams on the slope of the above-mentioned construction areas, each of the above-mentioned construction areas is constructed synchronously from top to bottom along the height direction of the slope.

[0017] In some optional embodiments, after laying lattice beams on the slope of the above-mentioned construction area, a slope protection method of spraying mixed vegetation and spreading grass seeds is adopted in the above-mentioned lattice beams.

[0018] In some optional embodiments, the first anti-slip pile group includes a plurality of first anti-slip piles arranged at intervals. When the side walls of the first anti-slip piles are against the slope or partially located within the slope, a soil nail wall is set between two adjacent first anti-slip piles.

[0019] In some optional embodiments, a longitudinal cableway is provided along the height direction of the slope surface, and the longitudinal cableway connects all the above-mentioned construction areas.

[0020] In some optional embodiments, when slope protection construction is carried out simultaneously in multiple construction areas, the deformation development characteristics of the slope at different construction stages are monitored.

[0021] Compared with the existing technology, the advantages of the present invention are: by dividing multiple construction areas and installing a row of first anti-slip pile groups between two adjacent construction areas, and setting up a passive anti-slip net, the relative independence of the two adjacent construction areas can be guaranteed, and the passive protection net can be used to separate the concrete or sand and gravel during construction from causing harm to construction workers in adjacent areas, thereby achieving synchronous construction of multiple areas and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic diagram of the construction arrangement of a synchronous construction method for high and steep slopes according to the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the arrangement of the first anti-slide pile group and frame beam;

[0025] Figure 3 The present invention is a flowchart of a synchronous construction method for high and steep slopes.

[0026] In the figure: 1. Construction area; 2. First anti-slip pile group; 21. First anti-slip pile; 3. Passive protection net; 4. Construction passage; 41. Auxiliary road; 5. Second anti-slip pile group; 51. Second anti-slip pile; 6. Bridleway; 7. Longitudinal cableway; 8. Frame beam; 9. Slope monitoring facilities. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0029] As mentioned in the background technology, when construction is carried out on the high and steep slopes of deep canyons, due to the steep slopes and deep valleys, and the rock strata mainly consisting of Proterozoic diorite, plagioclase, etc., with local granite intrusion, and the covering layer mainly consisting of gravel soil, it is necessary to protect the high and steep slopes so as to ensure the vertical stability of the slopes when other infrastructure is constructed on the slopes.

[0030] Therefore, if Figure 3 As shown, the present application provides a synchronous construction method for high and steep slopes, comprising the following steps:

[0031] S1: Divide the slope into multiple construction areas 1 along the slope height direction.

[0032] It is understandable that when dividing the construction area, it is necessary to divide it according to the specific geological conditions of the slope, for example, according to the slope variation range, or the rock structure of the slope, or the location of other infrastructure, etc., which will not be elaborated here.

[0033] However, it should be noted that the multiple construction areas are divided along the height direction of the slope surface. For example, in this example, the slope surface is divided into three construction areas 1.

[0034] S2: Install a row of first anti-slide pile groups 2 between two adjacent construction areas 1 .

[0035] It can be understood that the first anti-slide pile group 2 is located between two adjacent construction areas 1 , thereby dividing the two adjacent construction areas 1 .

[0036] In some optional embodiments, the above step S2 includes:

[0037] S21: Open a transverse construction passage 4 between two adjacent construction areas 1.

[0038] The function of the construction passage 4 is to facilitate the transportation of equipment, personnel and materials during construction. Therefore, a construction passage 4 is set between two adjacent construction areas 1, and a construction passage 4 is also set at the top and bottom of the slope to facilitate subsequent synchronous construction.

[0039] Two adjacent construction channels 4 are connected by a construction auxiliary road 41, thereby ensuring that the transportation route from the bottom of the slope to the top remains unobstructed.

[0040] S22: Install a row of the first anti-slide pile groups 2 above or below the construction channel 4 .

[0041] After the construction channel 4 is completed, a row of first anti-slide pile groups 2 is installed above or below the construction channel 4 , and a construction area 1 is formed between two rows of first anti-slide pile groups 2 .

[0042] In this example, the first anti-slip pile group 2 is located adjacent to the construction channel 4, and is located above or below the construction channel 4, depending on construction conditions and requirements. It can be understood that anti-slip piles are piles that penetrate the landslide body and extend deep into the slide bed. In other words, on steep slopes or where landslides may occur, they are cast into huge columns using materials such as reinforced concrete and are based on stable rock formations to resist the downward movement of the rock and soil. Depending on the terrain conditions of the landslide, anti-slip piles should be located in a relatively flat area, which is conducive to construction. Therefore, the first anti-slip pile group 2 is installed on one side of the construction channel 4, which also provides a guarantee for the safety of the construction channel 4.

[0043] In this embodiment, the skipping pile construction method can be adopted to start construction at the same time and synchronously construct the first anti-sliding pile groups 2 of each row.

[0044] In some optional embodiments, at least one row of second anti-slide pile groups 5 is further arranged at intervals in the construction area 1 to divide the construction area 1 into multiple levels of sub-slopes.

[0045] It is understood that when demarcating the construction area, there may be landslides within the construction area. To ensure construction safety within the construction area 1, a second anti-slide pile group 5 may be added to the construction area 1 according to construction requirements. Like the first anti-slide pile group 2 described above, the second anti-slide pile group 5 is arranged transversely along the slope surface and divides the construction area 1 into multiple sub-slopes. Each sub-slope is provided with a debris platform on both sides along the height direction of the slope surface.

[0046] Preferably, a transverse bridleway 6 is provided at the top and bottom of each of the above-mentioned multi-level sub-slopes.

[0047] The main function of the bridleway is to ensure the stability of the slope, ensure traffic during the construction period, and mainly for the transportation of personnel and small equipment. In this example, the width of the bridleway 6 is about 2m, which is used as a horizontal construction channel during the construction process and an inspection channel for horizontal maintenance after the construction is completed.

[0048] by Figure 1 For example, in this example, a row of second anti-slide pile groups 5 are added in each construction area 1, dividing the construction area 1 into two sub-slopes, and a horizontal horseway 6 is set at the top and bottom of each sub-slope.

[0049] Optionally, a drainage ditch is provided on one side of the bridleway 6 to prevent rainwater from collecting and causing a decrease in soil strength, resulting in slope instability and damage.

[0050] S3: After the passive protection net 3 is erected on top of the first anti-slide pile group 2, the slope protection construction is carried out simultaneously in the plurality of construction areas 1.

[0051] It can be understood that after the first anti-slip pile group 2 is installed, a passive protection net 3 is erected on the top, thereby making the construction area 1 completely independent, avoiding interference with adjacent construction areas during construction, and providing safety protection for simultaneous construction in multiple areas.

[0052] The passive protection net 3 is composed of a combination of steel columns and steel rope nets to form a whole, forming surface protection for the protected area, thereby preventing the collapse of rock and soil from falling and playing a role in slope protection.

[0053] In some optional embodiments, multiple construction areas 1 perform slope protection construction simultaneously, including laying lattice beams 8 on the slope surfaces of the above-mentioned construction areas 1.

[0054] In this example, if Figure 2 As shown, since a second anti-slide pile group 5 is further provided in the construction area 1, each construction area 1 is divided into multiple sub-slopes. Therefore, a lattice beam 8 is laid on the slope surface of each sub-slope.

[0055] Specifically, when constructing the frame beam 8, the construction is carried out from top to bottom. The frame beam construction includes the construction of anchor rod frame beam and anchor cable frame beam.

[0056] For example, when the second anti-slip pile group 5 and the horseway 6 are not set in the construction area 1, the laying of the frame beam 8 is also carried out from top to bottom; when the second anti-slip pile group 5 and the horseway 6 are set in the construction area 1, and the construction area 1 is divided into multiple sub-slopes, then in each construction area, the upper sub-slope is constructed first, and then the lower sub-slope is constructed, and each of the above-mentioned construction areas 1 is constructed synchronously from top to bottom along the slope height direction.

[0057] The purpose of this construction is to improve the safety of synchronous construction and avoid concrete or earth sliding during construction above, which may affect the safety of construction workers below.

[0058] Preferably, a combination of lattice beams and anti-slip piles is used. Specifically, a prestressed anchor frame is installed at the middle and rear edges of the main sliding area of the landslide within each construction area 1, while anti-slip piles are used at the leading edge. The combined effect of these two structures achieves the desired landslide reinforcement. The first and second anti-slip pile groups 2 and 5 must meet the prestressing requirements before they are combined with the lattice beams. The combined effect of the anchor frame and anti-slip piles ensures the overall stability of the slope.

[0059] Preferably, after laying the frame beams 8 on the slope of the construction area 1, a slope protection method of spraying mixed vegetation and sowing grass seeds is adopted inside the frame beams 8 to improve the protection capacity of the slope, prevent soil erosion, and increase the aesthetics of the slope.

[0060] The original vegetation can be restored by spraying mixed vegetation and spreading grass seeds for slope protection. As the plants grow and reproduce, their strength increases, and their effect on reducing slope instability and erosion will become increasingly greater, further protecting the ecological environment and providing a good ecological landscape.

[0061] In some optional embodiments, the first anti-slip pile group 2 includes a plurality of first anti-slip piles 21 arranged at intervals. When the side walls of the first anti-slip piles 21 are against the slope or partially located within the slope, a soil nail wall is set between two adjacent first anti-slip piles 21.

[0062] Understandably, in some specific areas, slopes can be steep and steep, posing a risk of landslides during heavy rain or other conditions. When installing anti-slide piles, the steep slope can abut against the sidewalls of the piles, or the piles can be partially located within the slope. In these situations, a soil nailing wall is required between the two piles to provide a thrust force to prevent the slope from sliding downward.

[0063] Similarly, the second anti-slip pile group 5 includes multiple second anti-slip piles 51. When the side walls of the above-mentioned second anti-slip piles 51 are against the slope or partially located inside the slope, a soil nail wall is set between two adjacent second anti-slip piles 51.

[0064] Preferably, when multiple construction areas 1 are simultaneously carrying out slope protection construction, the deformation development characteristics of the slopes at different construction stages are monitored.

[0065] It's understandable that monitoring slope construction can be supplemented by a dynamic, integrated air-ground-ground intelligent monitoring system for steep slopes. Specifically, using airborne LiDAR, satellite-based InSAR, and contact-based ground monitoring, the deformation characteristics of slopes during different construction stages can be comprehensively and accurately monitored at various spatial and temporal scales. Furthermore, based on a displacement-time curve tangent angle early warning model and a time-dependent creep prediction model, the most scientific and reliable early warning and forecasting system currently available has been established.

[0066] In this example, if Figure 1 As shown, multiple slope monitoring facilities 9 are set up in each construction area and observations are performed according to monitoring requirements. In this embodiment, preferably, all the slope monitoring facilities 9 are set up on the same longitudinal section.

[0067] In some optional embodiments, the synchronous construction method further includes providing a longitudinal cableway 7 along the slope height direction, wherein the longitudinal cableway 7 connects all the construction areas 1 .

[0068] The horseway 6 and the construction channel 4 provide horizontal transportation space for the construction area 1. In order to improve the efficiency of synchronous construction in each construction area 1, a longitudinal cableway 7 is also set up. The longitudinal cableway 7 is composed of a small winch + a small gantry, which is used for the rapid longitudinal transportation of construction materials and small equipment.

[0069] The invention provides a synchronous construction method for high and steep slopes. The invention divides a plurality of construction areas and installs a row of anti-slip pile groups between two adjacent construction areas. After setting up a passive anti-slip net, the relative independence of the two adjacent construction areas can be ensured. The passive protection net is used as a partition to prevent concrete or sand and gravel during construction from causing harm to construction workers in adjacent areas, thereby realizing synchronous construction of multiple areas and improving construction efficiency. The multiple construction areas are all constructed synchronously from top to bottom along the height direction of the slope, thereby improving the safety of synchronous construction. A combination of frame beams and anti-slip piles is adopted to achieve the purpose of reinforcing the landslide through the joint action of the two structures, thereby ensuring the overall stability of the slope. The original vegetation can be restored by spraying mixed vegetation, so as to improve the protection ability of the slope, prevent soil erosion, and increase the aesthetics of the slope. A soil nail wall is set between the two anti-slip piles to provide the slope with a top thrust to resist sliding. The high and steep slope air-ground-integrated intelligent monitoring system is used to dynamically detect the stability of the slope, so as to realize air-ground-integrated slope monitoring and early warning, thereby improving the safety of synchronous slope construction.

[0070] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0071] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0072] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A synchronous construction method for high and steep slopes, characterized in that: The following steps are involved: Divide the slope into multiple construction areas along the height direction (1); Installing a row of first anti-slide pile groups (2) between two adjacent construction areas (1); After a passive protection net (3) is erected on top of the first anti-slide pile group (2), slope protection construction is carried out simultaneously in the plurality of construction areas (1).

2. The synchronous construction method for high and steep slopes according to claim 1, characterized in that: At least one row of second anti-slide pile groups (5) is also arranged at intervals in the construction area (1) to divide the construction area (1) into multiple levels of sub-slopes.

3. The synchronous construction method for high and steep slopes according to claim 2, characterized in that: A transverse horseway (6) is provided at the top and bottom of each of the multi-level sub-slopes.

4. The synchronous construction method for high and steep slopes according to claim 1, characterized in that: The step of installing a row of first anti-slide pile groups (2) between two adjacent construction areas (1) comprises: A transverse construction passage (4) is opened between two adjacent construction areas (1); A row of the first anti-sliding pile groups (2) is installed above or below the construction channel (4).

5. The synchronous construction method for high and steep slopes according to claim 1, characterized in that: Multiple construction areas (1) simultaneously carry out slope protection construction, including laying lattice beams (8) on the slope surface of the construction area (1).

6. The synchronous construction method for high and steep slopes according to claim 5, characterized in that: When laying the lattice beams (8) on the slope of the construction area (1), each construction area (1) is simultaneously constructed from top to bottom along the slope height direction.

7. The synchronous construction method for high and steep slopes according to claim 5, characterized in that: After laying the frame beam (8) on the slope surface of the construction area (1), a protection method of spraying mixed vegetation and spreading grass seeds to protect the slope is adopted in the frame beam (8).

8. The synchronous construction method for high and steep slopes according to claim 1, characterized in that: The first anti-slide pile group (2) comprises a plurality of first anti-slide piles (21) arranged at intervals, and when the side walls of the first anti-slide piles (21) are in contact with the slope surface or partially located within the slope surface, a soil nail wall is provided between two adjacent first anti-slide piles (21).

9. The synchronous construction method for high and steep slopes according to claim 1, characterized in that: It also includes: a longitudinal cableway (7) is arranged along the height direction of the slope surface, and the longitudinal cableway (7) connects all the construction areas (1).

10. The synchronous construction method for high and steep slopes according to claim 1, characterized in that: When slope protection construction is carried out simultaneously in multiple construction areas (1), the deformation development characteristics of the slope at different construction stages are monitored.

Images