Active protective net structure for cutting high slope

Abstract

The active protective net structure comprises steel rope anchor rods, supporting ropes and a steel rope net, the steel rope anchor rods are anchored on the side slope face and arranged at intervals in the vertex angle direction of a rectangle, rope sleeve pipes are arranged on the supporting ropes in a sleeved mode, the steel rope net and the supporting ropes are connected at the rope sleeve pipes through sewing ropes, and the steel rope net and the supporting ropes are connected through the sewing ropes. The supporting ropes penetrate through the ring sleeves on the tops of the steel rope anchor rods and the rope sleeve pipes in the longitudinal direction and the transverse direction correspondingly, then an active protection net structure body can be formed, the arranged rope sleeve pipes can play a certain protection role on the supporting ropes, pre-connection between the steel rope net and the supporting ropes can be achieved, and the safety of the active protection net structure is improved. The labor intensity and the safety risk of independently sewing and connecting each steel rope net on the side slope by constructors can be remarkably reduced, the construction efficiency of the active protective net structure is improved, and the connection integrity of the active protective net is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection, and more specifically, to an active protection net structure for high slopes of road cuttings. Background Art

[0002] On the high slopes of road cuttings, due to their large height, multi-level slopes are set up in stages. Different slope protection structures are often set up on each level of slope according to the geological and slope conditions. The slope environment has extremely low water and nutrient retention capacity, and it is difficult for general plants to grow normally. Slope climbing plants are an important greening method, mainly used in greening projects in mines, highway slopes, etc. to prevent soil erosion and improve the ecological environment. These plants have strong adsorption and climbing abilities, tenacious vitality, and fast growth rates. They can cover a large area in a short time, thereby achieving good greening effects. Therefore, the top level slope is often protected from falling rocks and gravel using active protective nets + climbing plants. This not only beautifies the environment, but also effectively prevents slope erosion and damage, which is of great significance for maintaining ecological balance. However, the current protective net structure is difficult to arrange. Generally, an anchor rod with a ring on the top is set and then a support rope is passed through. The steel rope net is connected by sewing ropes in the space surrounded by the longitudinal and transverse support ropes, and finally it is tensioned. The operation is difficult and also affects the safety of construction workers. In addition, the maintenance of climbing plants is mostly done by external spraying of pesticides or water, which is easily blocked by the existing protective net structure, making watering and other maintenance operations less efficient. Summary of the Invention

[0003] The utility model aims to provide an active protection net structure for high side slopes of road cuttings, so as to solve the technical problem of inconvenient construction of active protection net structures for high side slopes of road cuttings in the prior art.

[0004] In order to achieve these purposes and other advantages according to the present invention, an active protection net structure for high slopes of cuttings is provided, comprising:

[0005] Steel rope anchor rods are anchored on the slope and arranged at intervals along the four corners of a rectangle on the slope surface. A ring is provided on the top of each steel rope anchor rod, and the inner sides of four adjacent steel rope anchor rods form a protective unit.

[0006] The support rope includes a longitudinal support rope and a transverse support rope. Each longitudinal support rope is stretched straight through the rings at the top of all steel rope anchor rods in the same longitudinal direction and fixed at both ends to the adjacent rings. Each transverse support rope is stretched straight through the rings at the top of all steel rope anchor rods in the same transverse direction and fixed at both ends to the adjacent rings. A plurality of rope sleeves are provided on the support rope at intervals corresponding to the arrangement of the protection units in the corresponding directions. The outer diameter of the rope sleeves is smaller than the inner diameter of the rings.

[0007] A steel rope net is provided with a group corresponding to each protection unit. Each side of the steel rope net is connected to the longitudinal support rope or transverse support rope on the corresponding side through a suture rope along the extension direction. The suture rope is wound around the rope sleeve located on the longitudinal support rope or transverse support rope at the position corresponding to the protection unit, and the two ends of the suture rope are fixedly connected to the adjacent ring sleeves.

[0008] Preferably, annular grooves are arranged at intervals on the rope sleeve, and the suture rope is aligned with the annular grooves and is wound and connected.

[0009] Preferably, it also includes groove rods arranged along the longitudinal direction, and a group of groove rods is arranged in the middle of each column of the protective unit. The groove rods in each group are sequentially abutted along the longitudinal direction to form a complete longitudinal flow channel on the inner side of the top, and the bottom surface of the groove rod abuts on the slope surface. The groove rods are provided with support grooves above the flow channel along the length direction at intervals of the arrangement of the longitudinal support ropes. The support grooves are used to support the longitudinal support ropes at corresponding positions upward. Anchor nails are provided downward at the bottom of the groove rods to fix them on the slope surface. The groove rods are provided with through holes at intervals on both sides of the flow channel.

[0010] Preferably, the through holes are symmetrically opened on both sides of the slot rod, and ear plates are symmetrically arranged downward at both ends of the bottom of the support slot, and pin holes are opened on the ear plates. Bolts are screwed into a pair of pin holes and a pair of the through holes to fix the support slot at a corresponding position on the slot rod.

[0011] Preferably, the through hole is arranged on the side surface of the slot rod and is inclined upward relative to the length direction.

[0012] Preferably, a grille net is connected to the side of the steel rope net facing the slope surface.

[0013] The present invention includes at least the following beneficial effects: the active protection net structure for high slopes of road cuttings of the present invention includes steel rope anchor rods, support ropes, and steel rope nets. The steel rope anchor rods are anchored on the slope surface and arranged at intervals along the direction of the rectangular top angles. Rope sleeves are sleeved on the support ropes. The suture ropes connect the steel rope net and the support ropes at the rope sleeves. The support ropes are respectively passed through the ring sleeves and the rope sleeves at the tops of the steel rope anchor rods in the longitudinal and transverse directions to form the main body of the active protection net structure. The provided rope sleeves can not only protect the support ropes themselves to a certain extent, but also can realize the pre-connection between the steel rope nets and the support ropes, which can significantly reduce the labor intensity and safety risks of construction workers in sewing and connecting each steel rope net individually on the slope, thereby improving the construction efficiency of the active protection net structure and making the connection integrity of the active protection net stronger.

[0014] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a main structural diagram of a protective unit of the utility model on a slope;

[0016] Figure 2 This is a diagram of the combined structure of multiple protection units on a slope surface of the utility model;

[0017] Figure 3 This is a side structural diagram of the slot rod of the present utility model.

[0018] Explanation of the reference numerals in the accompanying drawings in the specification: 1. annular sleeve, 2. longitudinal support rope, 3. transverse support rope, 4. rope sleeve, 5. steel rope net, 6. suture rope, 7. annular groove, 8. groove rod, 9. flow channel, 10. support groove, 11. anchor nail, 12. through hole, 13. pin hole. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0020] In the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] like Figure 1 、 Figure 2 As shown, the active protection net structure for high slopes of road cuttings of the present invention comprises:

[0022] Steel rope anchor rods are anchored on the slope and arranged at intervals along the four corners of a rectangle on the slope surface. A ring sleeve 1 is provided on the top of each steel rope anchor rod, and the inner sides of four adjacent steel rope anchor rods form a protective unit.

[0023] The support rope includes a longitudinal support rope 2 and a transverse support rope 3. Each longitudinal support rope 2 is stretched straight through the ring sleeves 1 at the top of all steel rope anchor rods in the same longitudinal direction and fixed at both ends to the adjacent ring sleeves 1. Each transverse support rope 3 is stretched straight through the ring sleeves 1 at the top of all steel rope anchor rods in the same transverse direction and fixed at both ends to the adjacent ring sleeves 1. A plurality of rope sleeves 4 are provided on the support rope at intervals in the corresponding directions of the protective units. The outer diameter of the rope sleeve 4 is smaller than the inner diameter of the ring sleeve 1.

[0024] A steel rope net 5 is provided in a group corresponding to each protection unit. Each side of the steel rope net 5 is connected to the longitudinal support rope 2 or the transverse support rope 3 on the corresponding side through a suture rope 6 along the extension direction. The suture rope 6 is wound around the rope sleeve 4 on the longitudinal support rope 2 or the transverse support rope 3 at the position corresponding to the protection unit, and the two ends of the suture rope 6 are fixedly connected to the adjacent ring sleeve 1.

[0025] After the slope surface is cleared of loose rocks, the layout is performed according to the design drawings, spacing of 4.5 x 4.5 meters, to accurately locate the steel anchor bolts. Before digging the anchor pits, a depression at each location, at least the length of the exposed anchor bolt ring, is chiseled. The diameter is typically 20 cm and the depth is 20 cm. Markings are made. The anchor bolts are spaced 4.5 x 4.5 meters apart. Anchor holes are drilled and cleaned to the designed depth using a pneumatic drill. The drill axis is perpendicular to the slope surface, and the hole depth should be at least 5 cm longer than the designed anchor bolt length. The hole diameter is φ70 mm. The upper steel anchor bolt is 6 m long, while the middle and lower steel anchor bolt holes are 3 m and 4 m deep, respectively, according to the standard configuration.

[0026] Manual grouting is used for grouting, and the slurry strength is not less than M30. It is advisable to use cement mortar with a ash-sand ratio of 1:1-1.2 and a water-cement ratio of 0.45-0.50, or cement paste with a water-cement ratio of 0.45-0.50. The cement should be 42.5 grade ordinary Portland cement. Medium and fine sand with a particle size of no more than 3mm is preferred to ensure that the slurry is full. The grouting body should be cured for no less than 3 days before proceeding to the next process.

[0027] On the longitudinal support rope 2 and the transverse support rope 3, according to the setting size of the protection unit, the rope sleeve 4 is put as the structural area where the subsequent suture rope 6 is in direct contact with the support rope. In this way, the steel rope net 5 can be arranged in advance according to the protection unit, and the steel rope net 5 and the rope sleeve 4 at the corresponding position are pre-connected by winding the suture rope 6. Rope clips or other structures can be set at both ends of the suture rope 6 to temporarily fix them at the corresponding ends of the steel rope net 5. Of course, the rope sleeve 4 can also be set as a two-half structure that can be axially split according to needs. The steel rope net 5, suture rope 6, and rope sleeve net are pre-connected. After connection, the corresponding same longitudinal or transverse support rope will be inserted in the cross order of the rope sleeve 4 and the ring sleeve 1 until a row of steel rope nets 5 are strung together and then straightened, and the two ends of the support rope will be fixed. The transverse support rope 3 will be operated first, and then the longitudinal support rope 2 will be operated. Alternatively, all the transverse support ropes 3 can be basically straightened first, and then synchronously tensioned and fixed. The four sides of the steel rope net 5 in each protection unit are jointly supported by the upper and lower transverse support ropes 3 and the left and right longitudinal support ropes 2. The support rope is inserted into the connecting steel rope anchor rod, and the force is supported by the steel rope anchor rod anchored on the slope.

[0028] The active protection net structure for high slopes of road cuttings of the present invention includes a steel rope anchor rod, a supporting rope, and a steel rope net 5. The steel rope anchor rod is anchored on the slope surface and is arranged at intervals along the direction of the rectangular top angle. A rope sleeve 4 is sleeved on the supporting rope, and a suture rope 6 connects the steel rope net 5 and the supporting rope at the rope sleeve 4. The supporting rope is respectively passed through the ring sleeve 1 and the rope sleeve 4 at the top of the steel rope anchor rod in the longitudinal and transverse directions to form the main body of the active protection net structure. The arranged rope sleeve 4 can not only play a certain protective role for the supporting rope itself, but also can realize the pre-connection between the steel rope net 5 and the supporting rope, which can significantly reduce the labor intensity and safety risks of construction workers in sewing and connecting each steel rope net 5 separately on the slope, thereby improving the construction efficiency of the active protection net structure and making the connection integrity of the active protection net stronger.

[0029] In another technical solution, Figure 1-2 As shown, annular grooves 7 are provided at intervals on the rope sleeve 4, and the suture rope 6 is aligned with the annular grooves 7 for winding and connecting. The annular grooves 7 are provided to facilitate the operation of winding the suture rope 6 on the rope sleeve 4 and to prevent the suture rope 6 from slipping.

[0030] In another technical solution, Figure 1-3 As shown, it also includes a groove rod 8 arranged along the longitudinal direction. A group of groove rods 8 is arranged in the middle of each column of the protection unit. The groove rods 8 in each group are sequentially abutted along the longitudinal direction to form a complete longitudinal flow channel 9 on the inner side of the top. The bottom surface of the groove rod 8 abuts on the slope surface. The groove rod 8 is provided with support grooves 10 above the flow channel 9 along the length direction at intervals of the arrangement of the longitudinal support rope 2. The support grooves 10 are used to support the longitudinal support rope 2 at the corresponding position upward. Anchor nails 11 are provided downward at the bottom of the groove rod 8 to fix it on the slope surface. The groove rod 8 is provided with through holes 12 at intervals on both sides of the flow channel 9.

[0031] The groove rods 8 are laid longitudinally on the slope surface, and the groove rods 8 are fixed to the slope by anchor nails 11 at the bottom. A continuous flow channel 9 is formed on the inner side of the top, and water or nutrient solution can be introduced into the flow channel 9 from top to bottom, flow down under the action of gravity, and squeezed and sprayed to both sides under the action of the through holes 12, which is equivalent to providing partial watering and maintenance on the covered side of the steel rope net 5. At the same time, a support groove 10 is set upward at the top of the groove rod 8, and the bottom of the transverse support rope 3 can contact the support groove 10. During long-term use, the support groove 10 provides an upward support effect to the transverse support rope 3.

[0032] In another technical solution, Figure 3As shown, the through holes 12 are symmetrically provided on both sides of the slot rod 8, and ear plates are symmetrically provided downwardly at both ends of the bottom of the support slot 10. Pin holes 13 are provided on the ear plates. Bolts are screwed into a pair of pin holes 13 and a pair of through holes 12 to fix the support slot 10 to corresponding positions on the slot rod 8. Bolts are inserted into the pin holes 13 and the through holes 12 and tightened to achieve a detachable connection between the support slot 10 and the slot rod 8. The support slot 10 of the appropriate height can be replaced according to the height of the support rope.

[0033] In another technical solution, Figure 3 As shown, the through hole 12 is tilted upward relative to the length direction on the side of the groove rod 8. When the liquid in the flow channel 9 is guided, it is beneficial to squeeze the liquid out of a certain height and spray it farther.

[0034] In another technical solution, a grid mesh is connected to the side of the steel rope net 5 facing the slope surface, so as to further improve the protective effect of the steel rope net 5 and prevent the collapse of smaller-sized rock blocks.

[0035] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and drawings shown and described herein.

Claims

1. An active protection net structure for high slopes of road cuttings, characterized in that: include: Steel rope anchor rods are anchored on the slope and arranged at intervals along the four corners of a rectangle on the slope surface. A ring is provided on the top of each steel rope anchor rod, and the inner sides of four adjacent steel rope anchor rods form a protective unit. The support rope includes a longitudinal support rope and a transverse support rope. Each longitudinal support rope is stretched straight through the rings at the top of all steel rope anchor rods in the same longitudinal direction and fixed at both ends to the adjacent rings. Each transverse support rope is stretched straight through the rings at the top of all steel rope anchor rods in the same transverse direction and fixed at both ends to the adjacent rings. A plurality of rope sleeves are provided on the support rope at intervals corresponding to the arrangement of the protection units in the corresponding directions. The outer diameter of the rope sleeves is smaller than the inner diameter of the rings. A steel rope net is provided in a group corresponding to each protection unit. Each side of the steel rope net is connected to the longitudinal support rope or transverse support rope on the corresponding side by a suture rope through a loop along the extension direction. The suture rope is wound around the rope sleeve located on the longitudinal support rope or transverse support rope at the position corresponding to the protection unit, and the two ends of the suture rope are fixedly connected to the adjacent loops. Annular grooves are arranged at intervals on the rope sleeve, and the suture rope is aligned with the annular grooves and wound around and connected; It also includes groove rods arranged along the longitudinal direction, and a group of groove rods is arranged in the middle of each column of the protection unit. The groove rods in each group are sequentially abutted along the longitudinal direction to form a complete longitudinal flow channel on the inner side of the top, and the bottom surface of the groove rod abuts on the slope surface. The groove rods are provided with support grooves above the flow channel along the length direction at intervals of the arrangement of the longitudinal support ropes. The support grooves are used to support the longitudinal support ropes at corresponding positions upward. Anchor nails are provided downwardly at the bottom of the groove rods to fix them on the slope surface. The groove rods are provided with through holes at intervals on both sides of the flow channel.

2. The active protection net structure for high slopes of cuttings according to claim 1, characterized in that: The through holes are symmetrically opened on both sides of the slot rod, and ear plates are symmetrically arranged downward at both ends of the bottom of the support slot, and pin holes are opened on the ear plates. Bolts are screwed into a pair of pin holes and a pair of the through holes to fix the support slot at the corresponding position on the slot rod.

3. The active protection net structure for high slopes of cuttings according to claim 1, characterized in that: The through hole is arranged on the side surface of the slot rod and is inclined upward relative to the length direction.

4. The active protection net structure for high slopes of cuttings according to claim 1, characterized in that: The side of the steel rope net facing the slope surface is connected with a grid net.

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