Rock-socketed group pile based mountain slope foundation tower structure protection system and construction method thereof

Abstract

The application discloses a mountain slope foundation tower structure protection system based on rock-embedded group piles and a construction method thereof, and aims to provide the mountain slope foundation tower structure protection system based on rock-embedded group piles and the construction method thereof, which can effectively improve the stability of a foundation tower on a mountain slope, thereby guaranteeing the safety of the foundation tower structure. The mountain slope foundation tower structure protection system based on rock-embedded group piles comprises rock-embedded group piles, a pile cap and a foundation tower structure. The rock-embedded group piles are arranged on a slope. The rock-embedded group piles comprise a plurality of rock-embedded piles and the pile cap. The rock-embedded piles are arranged in pile holes on the slope. The rock-embedded piles comprise steel cages arranged in the pile holes. The pile cap is arranged on the ground and is connected with the top of each rock-embedded pile. The bottom of the foundation tower structure is fixed on the pile cap. A centering reinforcing structure is arranged on the steel cage. The centering reinforcing structure fixes the steel cage in the pile hole and makes the steel cage be centrally distributed in the pile hole.

Description

Technical Field

[0001] This invention relates to the field of protective engineering, specifically to a mountain slope base tower structure protection system based on rock-embedded pile groups and its construction method. Background Technology

[0002] Mountain slopes are a common landform feature in natural terrain and a crucial issue that needs to be addressed in engineering construction. Slope stability is a critical consideration. Slope stability is influenced by various factors, including slope gradient, the physical and mechanical properties of the soil or rock, and rainfall. Insufficient slope stability can lead to landslides, collapses, and other disasters, posing a serious threat to engineering projects and personnel safety. In particular, power or communication engineering towers are often constructed on mountain slopes far from residential areas, making slope stability a key indicator of tower safety.

[0003] Currently, in conventional power or communication engineering projects, the base tower is fixed to the slope at its base using a channel steel base plate. When the slope experiences landslides or collapses, the safety and stability of the base tower will inevitably be affected. To ensure the stability of the slope and the safety of the base tower, protective measures need to be taken for the slope to ensure a tighter and more secure connection between the slope and the base tower. Summary of the Invention

[0004] The primary objective of this invention is to provide a mountain slope foundation tower structure protection system and its construction method based on rock-socketed pile groups, which can effectively improve the stability of foundation towers on mountain slopes and thus ensure the structural safety of the foundation towers.

[0005] The second objective of this invention is to provide a mountain slope base tower structure protection system and its construction method based on rock-socketed piles that simultaneously ensures the safety of the base tower structure and the slope stability of the mountain slope where the base tower is located.

[0006] The technical solution of this invention is: A slope protection system based on rock-socketed pile groups in mountainous areas includes: Rock-embedded pile group, which is set on a slope, includes several rock-embedded piles and a pile cap. The rock-embedded piles are set in pile holes on the slope. The rock-embedded piles include a steel cage located in the pile hole. The pile cap is located on the ground surface and is connected to the top of each rock-embedded pile. The base structure is fixed at its bottom to the support platform; The centrally reinforced structure is mounted on a steel reinforcement cage, which is then fixed within the pile hole and centered within the hole. Compared to existing technologies where the tower base is fixed to the slope via a channel steel base plate, this design fixes the tower structure to a rock-socketed pile group. These piles are stably anchored within the soil layer of the mountain slope, effectively improving the stability of the tower on the slope. In the event of external disasters, the tower structure is less affected, providing horizontal protection and ensuring its safety.

[0007] On the other hand, the alignment of the reinforcing cage has always affected the quality of cast-in-place piles. An off-center reinforcing cage can cause eccentric compression on the pile, leading to instability in the rock-socketed pile group and affecting the safety of the foundation tower structure. Currently, reinforcing cage alignment is generally achieved by drawing a crosshair at the top of the pile hole to determine the center of the cast-in-place pile, and then adjusting the position of the reinforcing cage for alignment. However, in actual construction, it is often encountered that the top of the reinforcing cage is too high from the top of the pile hole, or the top of the reinforcing cage is submerged in water, making this alignment method difficult to operate or resulting in poor alignment. This solution uses an alignment reinforcement structure, which not only fixes the reinforcing cage inside the pile hole but also ensures that the reinforcing cage is centered and distributed throughout the pile hole, effectively solving the problem of the reinforcing cage being unable to be aligned or achieving poor alignment when the top of the reinforcing cage is too high from the top of the pile hole or the top of the reinforcing cage is submerged in water.

[0008] As a preferred embodiment, the centering reinforcement structure includes a transmission rod and several telescopic centering reinforcement mechanisms distributed sequentially from bottom to top on the steel cage, with the transmission rod passing through each telescopic centering reinforcement mechanism sequentially from top to bottom. The telescopic centering and reinforcement mechanism includes: At least two guide sleeves are provided, each guide sleeve is uniformly fixed to the reinforcing cage around the circumference of the reinforcing cage, and the axis of the guide sleeves is distributed along the radial direction of the reinforcing cage. Telescopic centering rods are slidably set in the guide sleeves in a one-to-one correspondence; The centering rod drive mechanism connects the transmission rod to each telescopic centering rod. The transmission rod drives the telescopic centering rods of each telescopic centering reinforcement mechanism to extend and retract along the guide sleeve through the centering rod drive mechanism.

[0009] Preferably, the telescopic centering and reinforcement mechanism includes a bracket fixed to the reinforcing cage, and the centering rod driving mechanism includes: A threaded rod with a nut on it, the threaded rod and the guide sleeve are one-to-one correspondence, the threaded rod is rotatably mounted on the bracket or the corresponding guide sleeve, the axis of the threaded rod is parallel or coaxial with the axis of the corresponding guide sleeve, and the nut on the threaded rod is connected to the telescopic centering rod inside the corresponding guide sleeve. The driving bevel gear is fixed on the transmission rod, which is rotatably mounted on the bracket or steel cage. Driven bevel gears are sequentially mounted on threaded rods, each meshing with the driving bevel gear. During the lowering of the reinforcing cage into the pile hole, the telescopic centering rod retracts into the guide sleeve to prevent interference between the telescopic centering rod and the inner wall of the pile hole, ensuring the smooth lowering of the reinforcing cage. After the reinforcing cage is lowered into the pile hole, the telescopic centering rods of each telescopic centering reinforcement mechanism extend synchronously along the guide sleeve via the transmission rod and centering rod drive mechanism until the ends of each telescopic centering rod abut against the inner wall of the pile hole, thereby fixing the reinforcing cage in the pile hole and aligning it within the hole. This not only ensures the aligning distribution of the reinforcing cage within the pile hole but also makes the connection between the reinforcing cage of the rock-socketed pile and the concrete pouring layer and slope soil tighter, resulting in greater stability. The telescopic centering rods can be adjusted according to the diameter of the pile hole to adapt to different diameters, reducing engineering requirements.

[0010] Preferably, one end of the threaded rod extends into the corresponding guide sleeve, and the nut is located within the corresponding guide sleeve. The telescopic centering rod is provided with a threaded rod receiving hole, allowing the threaded rod to extend into the threaded rod receiving hole during the telescopic centering rod's extension and retraction within the guide sleeve. This effectively improves the structural compactness.

[0011] Preferably, in the centering reinforcement structure, the telescopic centering reinforcement mechanism located at the top of the reinforcing cage is situated within the foundation, and the outer end of the telescopic centering rod of this mechanism has a bent portion, which is tied and fixedly connected to the reinforcing bars within the foundation. The bent outer end of the telescopic centering rod facilitates tying to the reinforcing bars within the foundation, eliminating the need for workers to bend exposed reinforcing bars, thus improving efficiency and shortening project time.

[0012] Preferably, the top of the transmission rod is equipped with a handwheel that drives the transmission rod to rotate. The handwheel is a hollow component, and some of the reinforcing bars of the foundation pass through the hollow part of the handwheel. This further strengthens the connection strength between the foundation reinforcement and the rock-socketed pile.

[0013] Preferably, the reinforcing cage includes an inner reinforcing cage and an outer reinforcing cage fitted outside the inner reinforcing cage, and the centering reinforcement structure connects the inner and outer reinforcing cages as a whole. This further improves the structural strength of the rock-socketed pile itself.

[0014] As a preferred option, rock-embedded pile groups include: Laterally distributed rock-socketed pile groups are set at the top and bottom of the slope. The longitudinally distributed rock-socketed pile groups are located on both sides of the slope. The pile caps of the longitudinally and transversely distributed rock-socketed pile groups together form a closed protective area. The embedded rock pile group is located within the protected area and connects the transverse embedded rock piles at the top and bottom of the slope. The pile caps of the transverse and longitudinal embedded rock piles are connected end to end, forming a closed protected area on the slope to ensure the slope stability of the mountain slope where the base tower is located, thereby further improving the structural safety of the base tower.

[0015] Preferably, the base tower structure includes a tower body and symmetrically arranged tower bases located at the bottom of the base body. The tower bases are fixed to the bearing platform. The steel support components of the tower body extend into the bearing platform and are tied and fixed to the steel reinforcement skeleton within the bearing platform. The tower bases and the bearing platform are integrally cast. In this way, a tight and stable connection is ensured between the base tower structure and the rock-socketed pile group. When external disasters occur, the base tower structure is less affected and provides horizontal protection for the base tower structure.

[0016] A construction method for a mountain slope foundation tower structure protection system based on rock-socketed pile groups includes the following steps: First, construct pile holes by drilling holes on the slope according to the construction plan; Second, pour a fixed base at the bottom of the steel cage; Third, the steel cage is hoisted into the pile hole. During the process of hoisting the steel cage into the pile hole, the telescopic centering rod retracts into the guide sleeve to avoid interference between the telescopic centering rod and the inner wall of the pile hole. Fourth, the telescopic centering rods of each telescopic centering reinforcement mechanism are driven by the transmission rod and the centering rod drive mechanism to extend synchronously along the guide sleeve until the ends of each telescopic centering rod abut against the inner wall of the pile hole, so that the reinforcing cage is centered and distributed in the pile hole. Fifth, concrete is poured into the pile hole to form a rock-socketed pile; Sixth, the steel reinforcement cage of the construction foundation, wherein the upper end of the steel reinforcement cage extends into the steel reinforcement cage; Seventh, erect the formwork and pour concrete inside the formwork to form the foundation.

[0017] The beneficial effects of this invention are: Firstly, it can effectively improve the stability of the base tower on mountain slopes, thereby ensuring the safety of the base tower structure.

[0018] Secondly, it ensures both the structural safety of the base tower and the slope stability of the mountainous area where the base tower is located. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a mountain slope base tower structure protection system based on rock-embedded pile groups according to the present invention.

[0020] Figure 2 This is a plan view of the rock-embedded pile group arrangement on a slope according to the present invention.

[0021] Figure 3 This is a partial cross-sectional structural diagram of the rock-socketed pile group of the present invention.

[0022] Figure 4 This is a partial structural diagram of the telescopic centering rod of the centering reinforcement structure of the present invention in a retracted state.

[0023] Figure 5 This is a partial structural diagram of the telescopic centering rod of the centering reinforcement structure of the present invention in an extended state.

[0024] In the picture: 1. Tower structure, 1.1. Tower body, 1.2. Steel support components, 1.3. Channel steel base plate, 1.4. Rock-embedded pile group 2, transverse rock-embedded pile group 2.1, longitudinal rock-embedded pile group 2.2, internal rock-embedded pile group 2.3, skeleton structure 2.4; Platform 3; Rock-socketed pile 4, reinforcement cage 4.1, cast-in-place pile 4.2, foundation 4.3, outer reinforcement cage 4.11, inner reinforcement cage 4.12; Centering reinforcement structure 5, telescopic centering reinforcement mechanism 5.1, bracket 5.11, guide sleeve 5.12, telescopic centering rod 5.13, threaded rod 5.14, nut 5.15, driven bevel gear 5.16, driving bevel gear 5.17, transmission rod 5.2, handwheel 5.3. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Specific Implementation Example 1, such as Figure 1 , Figure 2 , Figure 3 As shown, a mountain slope base tower structure protection system based on rock-embedded pile group includes a base tower structure 1, a rock-embedded pile group 2, and a centering reinforcement structure 5.

[0026] The rock-embedded pile group 2 is installed on a slope. The rock-embedded pile group includes a pile cap 3 and several rock-embedded piles 4. The rock-embedded piles 4 are installed in pile holes on the slope. Each rock-embedded pile includes a reinforcing cage 4.1 located within the pile hole and a cast-in-place concrete pile 4.2. The pile cap 3 is a cast-in-place concrete structure with a reinforcing steel skeleton inside. The upper end of the reinforcing cage extends into the pile cap. The pile cap is located on the ground surface and is integrated with the tops of each rock-embedded pile. In this embodiment, the rock-embedded pile group includes transversely distributed transverse rock-embedded piles 2.1, longitudinally distributed longitudinal rock-embedded piles 2.2, and an inner rock-embedded pile group 2.3. The transverse rock-embedded piles consist of two rows, one row located at the top of the slope and the other row located at the bottom of the slope. The longitudinal rock-embedded piles are located on both sides of the slope. The pile caps of the longitudinal rock-embedded piles are connected end-to-end with the pile caps of the transverse rock-embedded piles. The pile caps of the longitudinal and transverse rock-embedded pile groups together form a closed protective area. The inner rock-embedded pile group is located within this protective area and connects the transverse rock-embedded pile groups at the top and bottom of the slope. The pile caps of the transverse and longitudinal rock-embedded pile groups are connected end-to-end, jointly forming a closed protective area on the slope to ensure the slope stability of the mountainous terrain where the foundation tower is located, thereby improving the structural safety of the foundation tower.

[0027] In this embodiment, a framework structure 2.4 is also installed within the protective area enclosed by the rock-socketed pile group. The framework structure is distributed in a crisscross pattern. A vegetation protection layer is installed on the surface of the protected area. This further improves the stability of the slope below the base tower. The base of the tower structure 1 is fixed to the foundation. Specifically, the tower structure includes a tower body 1.1 and tower bases 1.2 located at the bottom of the base body and symmetrically arranged. The tower bases are fixed to the foundation. In this embodiment, the tower bases 1.2 are symmetrically distributed on the foundations of the transverse rock-embedded piles, or symmetrically distributed on the foundations of the longitudinal rock-embedded piles and adjacent inner rock-embedded piles. The steel support components 1.3 of the tower body extend into the foundation and are tied and fixed to the steel reinforcement skeleton inside the foundation. A channel steel base plate 1.4 is provided inside the tower base. The channel steel base plate is welded and fixed to the steel support components of the tower body and the steel reinforcement skeleton inside the foundation. The tower base and the foundation are integrally cast. In this way, the tower structure is tightly and firmly connected to the rock-embedded piles, and the tower structure is less affected by external disasters, thus providing horizontal protection for the tower structure.

[0028] The centering reinforcement structure 5 corresponds one-to-one with the rock-socketed pile 4. The centering reinforcement structure 5 is installed on the corresponding reinforcing cage 4.1 of the rock-socketed pile. The centering reinforcement structure fixes the reinforcing cage inside the pile hole and ensures that the reinforcing cage is centered within the pile hole. The centering reinforcement structure 5 includes a transmission rod 5.2 and several telescopic centering reinforcement mechanisms 5.1 distributed sequentially from bottom to top on the reinforcing cage. At least two telescopic centering reinforcement mechanisms are distributed in the pile hole containing the reinforcing cage; in this embodiment, three telescopic centering reinforcement mechanisms are distributed in the pile hole containing the reinforcing cage (top, middle, and bottom). The transmission rod passes through each telescopic centering reinforcement mechanism sequentially from top to bottom. In this embodiment, the transmission rod is coaxially distributed with the reinforcing cage.

[0029] The telescopic centering reinforcement mechanism 5.1 includes a bracket 5.11, at least two guide sleeves 5.12, a telescopic centering rod 5.13, and a centering rod driving mechanism. The bracket 5.11 is fixed to the reinforcing cage. In this embodiment, all guide sleeves in the same telescopic centering reinforcement mechanism are connected to the bracket. A transmission rod 5.2 is rotatably mounted on the bracket or reinforcing cage. In this embodiment, the transmission rod is rotatably mounted on the bracket of each telescopic centering reinforcement mechanism via bearings. There are two, three, four, or more guide sleeves; the number of guide sleeves is arranged according to actual needs. Each guide sleeve is uniformly fixed to the reinforcing cage circumferentially, and the axis of the guide sleeve is distributed radially along the reinforcing cage. Each telescopic centering rod 5.13 corresponds to a guide sleeve. The telescopic centering rod is slidably mounted within the corresponding guide sleeve. The centering rod driving mechanism connects the transmission rod to each telescopic centering rod. The transmission rod drives the telescopic centering rod of each telescopic centering reinforcement mechanism to extend and retract along the guide sleeve via the centering rod driving mechanism.

[0030] The centering rod drive mechanism includes a threaded rod 5.14, a driving bevel gear 5.17, and a driven bevel gear 5.16. Each threaded rod corresponds to a guide sleeve. The threaded rod is rotatably mounted on a bracket or a corresponding guide sleeve; in this embodiment, the threaded rod is rotatably mounted on the bracket via a bearing. The axis of the threaded rod is parallel to or coaxial with the axis of the corresponding guide sleeve; in this embodiment, the axis of the threaded rod and the axis of the corresponding guide sleeve are coaxially distributed. A nut 5.15 is provided on the threaded rod. The nut on the threaded rod is connected to the telescopic centering rod inside the corresponding guide sleeve. In this embodiment, the inner wall of the guide sleeve has an axially extending guide groove. The telescopic centering rod slides along the guide groove, or the nut slides along the guide groove. The driving bevel gear is fixed to the transmission rod. Each driven bevel gear is correspondingly mounted on the threaded rod, and each driven bevel gear meshes with the driving bevel gear.

[0031] Compared with the existing technology where the base of the tower is fixed to the slope by a channel steel base plate, the base tower structure of this scheme is fixed to the rock-socketed pile group. The rock-socketed pile group is stably fixed in the soil layer of the mountain slope. In this way, the stability of the base tower on the mountain slope can be effectively improved. When external disasters occur, the base tower structure is less affected, and it plays a protective role in the horizontal direction of the base tower structure, ensuring the safety of the base tower structure.

[0032] On the other hand, the alignment of the reinforcing cage has always affected the quality of cast-in-place piles. An off-center reinforcing cage can cause eccentric compression on the pile, leading to instability in the rock-socketed pile group and affecting the safety of the foundation tower structure. Currently, reinforcing cage alignment is generally achieved by drawing a crosshair at the top of the pile hole to determine the center of the cast-in-place pile, and then adjusting the position of the reinforcing cage for alignment. However, in actual construction, it is often encountered that the top of the reinforcing cage is too high from the top of the pile hole, or the top of the reinforcing cage is submerged in water, making this alignment method difficult to operate or resulting in poor alignment. This solution uses an alignment reinforcement structure, which not only fixes the reinforcing cage inside the pile hole but also ensures that the reinforcing cage is centered and distributed throughout the pile hole, effectively solving the problem of the reinforcing cage being too high from the top of the pile hole or the top of the reinforcing cage being submerged in water, resulting in poor alignment. Specifically… During the lowering of the reinforcing cage into the pile hole, the telescopic centering rod retracts into the guide sleeve to prevent interference between the telescopic centering rod and the inner wall of the pile hole, ensuring the smooth lowering of the reinforcing cage. After the reinforcing cage is lowered into the pile hole, the drive bevel gear is rotated via the transmission rod. The drive bevel gear drives the driven bevel gears and threaded rods to rotate, thereby causing the telescopic centering rods to extend synchronously along the guide sleeve through the nuts on the threaded rods until the ends of each telescopic centering rod abut against the inner wall of the pile hole, thus fixing the reinforcing cage in the pile hole and aligning it centrally within the hole. This not only ensures the aligning distribution of the reinforcing cage within the pile hole but also results in a tighter connection between the reinforcing cage of the rock-socketed pile and the concrete pouring layer and slope soil, enhancing stability. The telescopic centering rods can be adjusted according to the diameter of the pile hole to accommodate different diameters, reducing engineering requirements.

[0033] Furthermore, such as Figure 3 , Figure 4 , Figure 5 As shown, the reinforcing cage 4.1 includes an inner reinforcing cage 4.12 and an outer reinforcing cage 4.11 fitted outside the inner reinforcing cage. The centering reinforcement structure connects the inner and outer reinforcing cages into one unit. Specifically, the guide sleeve 5.12 in the centering reinforcement structure connects the inner and outer reinforcing cages into one unit. In this way, the structural strength of the rock-socketed pile itself is further improved.

[0034] In this embodiment, a base 4.3 is cast and fixed at the bottom of the reinforcing cage. The bottom surface of the base is a plane.

[0035] Furthermore, such as Figure 3As shown, in the centering reinforcement structure, the topmost telescopic centering reinforcement mechanism 5.1 is located inside the pile cap (the topmost telescopic centering reinforcement mechanism in the reinforcement cage is located above the pile hole). The outer end of the telescopic centering rod of this telescopic centering reinforcement mechanism has a bent portion, which bends downward from the outer end of the telescopic centering rod. This bent portion is tied and fixedly connected to the reinforcement inside the pile cap. The bent outer end of the telescopic centering rod facilitates tying to the reinforcement inside the pile cap, eliminating the need for workers to bend exposed reinforcement, thus improving efficiency and shortening project time.

[0036] Furthermore, such as Figure 3 As shown, a handwheel 5.3 for driving the transmission rod 5.2 is located at the top of the transmission rod. After the reinforcing cage is lowered into the pile hole and supported at the bottom of the pile hole, the handwheel is positioned above the pile hole. This allows the operator to easily drive the transmission rod via the handwheel, thereby driving the telescopic centering rod to extend and retract along the guide sleeve.

[0037] The handwheel is a hollow component, through which some of the reinforcing bars of the pile cap pass. In this way, the handwheel can serve as both a handheld part for rotating the transmission rod and a connection between the pile cap reinforcing bars and the pile body, further strengthening the connection between the pile cap reinforcing bars and the rock-socketed pile.

[0038] Furthermore, such as Figure 4 , Figure 5 As shown, one end of the threaded rod extends into the corresponding guide sleeve. The nut is located inside the corresponding guide sleeve. The telescopic centering rod is provided with a threaded rod receiving hole. During the telescopic centering rod's extension and retraction within the guide sleeve, the threaded rod can extend into the threaded rod receiving hole. This effectively improves the structural compactness.

[0039] Specific Embodiment Two: A construction method for a mountain slope base tower structure protection system based on rock-embedded pile group. The specific structure of the mountain slope base tower structure protection system based on rock-embedded pile group in this construction method is the same as that in Specific Embodiment One.

[0040] The construction method for a mountain slope foundation tower structure protection system based on rock-socketed pile groups includes the following steps in sequence. First, construct pile holes by drilling holes on the slope according to the construction plan.

[0041] Second, pour a fixed base at the bottom of the steel cage.

[0042] Third, the reinforcing cage is lowered into the pile hole until the foundation support rests on the bottom surface of the pile hole. During the lowering process, the telescopic centering rod retracts into the guide sleeve to prevent interference between the telescopic centering rod and the inner wall of the pile hole.

[0043] Fourth, the telescopic centering rods of each telescopic centering reinforcement mechanism are driven to extend synchronously along the guide sleeve by the transmission rod and centering rod drive mechanism until the ends of each telescopic centering rod abut against the inner wall of the pile hole, so that the reinforcing cage is centered and distributed in the pile hole.

[0044] Fifth, concrete is poured into the pile hole to form a rock-socketed pile.

[0045] Sixth, the upper end of the steel reinforcement cage of the construction foundation extends into the steel reinforcement cage. Next, the base tower structure is placed above the foundation reinforcement, the steel support components of the tower body extend into the foundation and are tied and fixed with the reinforcement skeleton inside the foundation, and the channel steel bottom plate of the tower base is welded and fixed to the steel support components of the tower body and the reinforcement skeleton inside the foundation. Seventh, erect a formwork and pour concrete inside the formwork to form the foundation and tower base. The tower base and foundation are cast as a single unit.

[0046] Specific Embodiment 3: A construction method for a mountain slope base tower structure protection system based on rock-embedded pile group. The specific structure of the mountain slope base tower structure protection system based on rock-embedded pile group in this construction method is the same as that in Specific Embodiment 1.

[0047] The construction method for a mountain slope foundation tower structure protection system based on rock-socketed pile groups includes the following steps in sequence. First, construct pile holes by drilling holes on the slope according to the construction plan.

[0048] Second, pour a fixed base at the bottom of the steel cage.

[0049] Third, the reinforcing cage is lowered into the pile hole until the foundation support rests on the bottom surface of the pile hole. During the process of lowering the reinforcing cage into the pile hole, the telescopic centering rod retracts into the guide sleeve to avoid interference between the telescopic centering rod and the inner wall of the pile hole; Next, the steel cage is hoisted upwards to a set height h, which is 1-5 centimeters.

[0050] Fourth, the telescopic centering rods of each telescopic centering reinforcement mechanism are driven by the transmission rod and the centering rod drive mechanism to extend synchronously along the guide sleeve until the ends of each telescopic centering rod abut against the inner wall of the pile hole, so that the reinforcing cage is centered and distributed in the pile hole. During this process, since the reinforcing cage is in a suspended state, under the action of each telescopic centering reinforcement mechanism, it can be ensured that the reinforcing cage is centered and distributed in the pile hole from bottom to top. Next, the steel cage is lowered vertically until the base is supported on the bottom of the pile hole. Since the base is only 1-5 cm away from the bottom of the pile hole, the steel cage can be lowered vertically and the base can be supported on the bottom of the pile hole even when the end of the telescopic centering rod is against the inner wall of the pile hole.

[0051] Fifth, concrete is poured into the pile hole to form a rock-socketed pile.

[0052] Sixth, the upper end of the steel reinforcement cage of the construction foundation extends into the steel reinforcement cage. Next, the base tower structure is placed above the foundation reinforcement, the steel support components of the tower body extend into the foundation and are tied and fixed with the reinforcement skeleton inside the foundation, and the channel steel bottom plate of the tower base is welded and fixed to the steel support components of the tower body and the reinforcement skeleton inside the foundation. Seventh, erect a formwork and pour concrete inside the formwork to form the foundation and tower base. The tower base and foundation are cast as a single unit.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A slope protection system based on rock-socketed pile groups in mountainous areas, characterized in that, include: Rock-embedded pile group, which includes several rock-embedded piles and a pile cap. The rock-embedded piles are set in pile holes on a slope. The rock-embedded piles include a steel cage located in the pile hole. The pile cap is located on the ground surface and connects the tops of each rock-embedded pile into one unit. The base structure is fixed to the foundation; The centering reinforcement structure installed on the steel cage fixes the steel cage in the pile hole and centers the steel cage in the pile hole. It includes a transmission rod and several telescopic centering reinforcement mechanisms distributed from bottom to top. The transmission rod passes through each telescopic centering reinforcement mechanism from top to bottom. The telescopic centering and reinforcement mechanism includes: Supports fixed to the steel cage; At least two guide sleeves are provided, each guide sleeve is uniformly fixed to the reinforcing cage around the circumference of the reinforcing cage, and the axis of the guide sleeves is distributed along the radial direction of the reinforcing cage. The telescopic centering rods are slidably installed in the guide sleeves in a one-to-one correspondence. The centering rod drive mechanism connects the transmission rod to each telescopic centering rod. The transmission rod drives the telescopic centering rods of each telescopic centering reinforcement mechanism to extend and retract along the guide sleeve through the centering rod drive mechanism. The centering lever drive mechanism includes: A threaded rod corresponding to each guide sleeve is rotatably mounted on a bracket or the corresponding guide sleeve. Its axis is parallel or coaxial with the axis of the corresponding guide sleeve. A nut is provided on it, and the nut is connected to the telescopic centering rod inside the corresponding guide sleeve. The driving bevel gear is fixed on the transmission rod, which is rotatably mounted on a bracket or steel cage. Driven bevel gears are arranged one-to-one on the threaded rod, and each driven bevel gear meshes with the driving bevel gear.

2. The mountain slope foundation tower structure protection system based on rock-embedded pile group as described in claim 1, characterized in that, One end of the threaded rod extends into the corresponding guide sleeve, the nut is located in the corresponding guide sleeve, and the telescopic centering rod is provided with a threaded rod receiving hole. During the telescopic centering rod's extension and retraction within the guide sleeve, the threaded rod can extend into the threaded rod receiving hole.

3. The mountain slope foundation tower structure protection system based on rock-socketed pile group as described in claim 1, characterized in that, In the centering reinforcement structure, the telescopic centering reinforcement mechanism located at the top of the steel cage is located inside the foundation, and the outer end of the telescopic centering rod of the telescopic centering reinforcement mechanism has a bent part, which is tied and fixedly connected to the steel reinforcement inside the foundation.

4. The mountain slope foundation tower structure protection system based on rock-embedded pile group as described in claim 1, 2, or 3, characterized in that, The top of the transmission rod is equipped with a handwheel that drives the transmission rod to rotate.

5. The mountain slope foundation tower structure protection system based on rock-embedded pile group as described in claim 4, characterized in that, The handwheel is a hollow component, and some of the steel bars of the support platform pass through the hollow part of the handwheel.

6. The mountain slope foundation tower structure protection system based on rock-embedded pile group as described in claim 1, 2, or 3, characterized in that, The steel reinforcement cage includes an inner steel reinforcement cage and an outer steel reinforcement cage sleeved outside the inner steel reinforcement cage, and the centering reinforcement structure connects the inner steel reinforcement cage and the outer steel reinforcement cage as one unit.

7. The mountain slope foundation tower structure protection system based on rock-embedded pile group as described in claim 1, 2, or 3, characterized in that, The rock-embedded pile group includes: Laterally distributed rock-socketed pile groups are set at the top and bottom of the slope. The longitudinally distributed rock-socketed pile groups are located on both sides of the slope. The pile caps of the longitudinally and transversely distributed rock-socketed pile groups together form a closed protective area. Embedded rock pile groups are set up within the protected area and connect the transverse embedded rock pile groups at the top and bottom of the slope.

8. The mountain slope foundation tower structure protection system based on rock-embedded pile group as described in claim 1, 2, or 3, characterized in that, The base structure includes a tower body and tower bases located at the bottom of the base body and arranged symmetrically, with the tower bases fixed to the support platform.

9. The mountain slope foundation tower structure protection system based on rock-embedded pile group as described in claim 8, characterized in that, The steel support components of the tower body extend into the foundation and are tied and fixed to the steel reinforcement skeleton inside the foundation. The tower base and the foundation are cast integrally.

10. A construction method for a mountain slope foundation tower structure protection system based on rock-socketed pile groups as described in any one of claims 1-9, characterized in that, The steps are as follows: First, construct pile holes by drilling holes on the slope according to the construction plan; Second, pour a fixed base at the bottom of the steel cage; Third, the steel cage is hoisted into the pile hole. During the process of hoisting the steel cage into the pile hole, the telescopic centering rod retracts into the guide sleeve to avoid interference between the telescopic centering rod and the inner wall of the pile hole. Fourth, the telescopic centering rods of each telescopic centering reinforcement mechanism are driven by the transmission rod and the centering rod drive mechanism to extend synchronously along the guide sleeve until the ends of each telescopic centering rod abut against the inner wall of the pile hole, so that the reinforcing cage is centered and distributed in the pile hole. Fifth, concrete is poured into the pile hole to form a rock-socketed pile; Sixth, the steel reinforcement cage of the construction foundation, wherein the upper end of the steel reinforcement cage extends into the steel reinforcement cage; Seventh, erect the formwork and pour concrete inside the formwork to form the foundation.

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