Bentonite waterproof blanket fixing device suitable for expansive soil slope

Abstract

The invention discloses a geosynthetic clay liner fixing device suitable for an expansive soil side slope, and relates to the technical field of expansive soil side slope protection, the geosynthetic clay liner fixing device comprises a plurality of groups of fixing strips located on the upper surface of a geosynthetic clay liner body, and a fixing limiting piece is arranged between each fixing strip and another adjacent single body. The fixed limiting piece penetrates through the waterproof blanket body and is fixed with the anchor body; the inner side of the fixed limiting piece is connected with a fixed nail penetrating piece in a clamped mode and used for fixing the waterproof blanket body. The problems that when the swelling soil side slope protection slope fluctuates greatly, contact between a waterproof blanket and the swelling soil side slope protection slope is not firm, rainwater further permeates into a gap between the waterproof blanket and the swelling soil side slope protection slope, when the gap is gradually increased, the adhesive force between the waterproof blanket and the swelling soil side slope protection slope is reduced, and disengagement and dislocation are prone to occurring are solved. And therefore, water and soil loss is caused, and unbalance occurs between the whole waterproof blanket and the expansive soil slope protection slope.

Description

Technical Field

[0001] The invention relates to the technical field of expansive soil slope protection, and in particular to a bentonite waterproof blanket fixing device suitable for expansive soil slopes. Background Art

[0002] Expansive soil slope refers to the phenomenon of instability caused by the presence of expansive soil in the soil. When it is stimulated by water or other external forces, the soil expands in volume. The surface treatment of the expansive soil slope is the first step in the construction of the expansive soil slope. Its main purpose is to increase the stability and anti-expansion performance of the expansive soil slope surface. The common surface treatment technology of the expansive soil slope often adopts the surface covering method for protection. By laying anti-penetration materials and anti-corrosion materials on the surface of the expansive soil slope, a protective layer is formed to reduce the penetration and erosion of water into the soil of the expansive soil slope.

[0003] Compared with the existing waterproof blanket, there are still the following defects: when the expansive soil slope protection has large fluctuations, the contact between the waterproof blanket and the expansive soil slope protection is not firm. As the rainwater further penetrates into the gap between the waterproof blanket and the expansive soil slope protection, when the gap gradually increases, the adhesion between the waterproof blanket and the expansive soil slope protection is reduced, and it is easy to become dislocated, which leads to soil erosion and imbalance between the entire waterproof blanket and the expansive soil slope protection. Summary of the Invention

[0004] The purpose of the present invention is to provide a bentonite waterproof blanket fixing device suitable for expansive soil slopes to solve the following technical problems: when the expansive soil slope protection has large undulations, the contact between the waterproof blanket and the expansive soil slope protection is not firm, and as rainwater further penetrates into the gap between the waterproof blanket and the expansive soil slope protection, when the gap gradually increases, the adhesion between the waterproof blanket and the expansive soil slope protection is reduced, and the phenomenon of detachment and dislocation is likely to occur, which in turn leads to soil erosion and imbalance between the entire waterproof blanket and the expansive soil slope protection.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A bentonite waterproof blanket fixing device suitable for expansive soil slopes comprises: fixing bars, the fixing bars being arranged in multiple groups on the upper surface of the waterproof blanket body; a fixing stopper being provided between the fixing bar and another adjacent unit; the fixing stopper penetrating the waterproof blanket body and fixing the waterproof blanket body to an anchor body; The inner side of the fixed limiting member is snap-connected with a fixed nail member for fixing the waterproof blanket body.

[0006] As a further solution of the present invention: a fixing collar and a fixing ring tube are respectively provided at both ends of the fixing strip, and the fixing collar and the fixing ring tube are overlapped and arranged in the same center to penetrate and fix the fixed limit piece.

[0007] As a further solution of the present invention: the longitudinal cross-section of the fixed ring tube is a "T"-shaped structure, which is used to cooperate with the conical tube section provided on the fixed limit member.

[0008] As a further solution of the present invention: anti-slip bumps are equidistantly provided on the joint surface between the fixing strip and the waterproof blanket body, and the anti-slip bumps are intermittently provided with first anti-tension rings on the symmetrical surface of the fixing strip.

[0009] As a further solution of the present invention: the cross-sectional dimension of one end of the fixed stopper is larger than the cross-sectional dimension of the other end, and an external thread piece is provided on the outer side of the end of the fixed stopper with a slightly smaller cross-sectional dimension; The conical pipe section is arranged at the end of the fixed limiting member with a slightly larger cross section.

[0010] As a further solution of the present invention: an annular fixing groove is provided on the inner side of the end of the fixed limiting member with a slightly larger cross section, and a plurality of limiting hole grooves are opened on the inner side of the annular fixing groove; A damping spring is provided on the inner wall of the fixed limiting member, and the two ends of the damping spring are respectively located between the inner lower side of the fixed limiting member and the fixed nail-piercing member, and are used to make the fixed nail-piercing member move up and down reciprocatingly.

[0011] As a further solution of the present invention: the fixed nail-piercing member is rotatably arranged above the fixed limiting member, and a locking protrusion is distributed on the outer side of one end of the fixed nail-piercing member. The fixed nail-piercing member passes through the fixed limiting member through the locking protrusion, and is fitted with the annular fixing groove and then rotated through the limiting hole groove to be locked and fixed with the fixed limiting member.

[0012] As a further solution of the present invention: a second tension ring fixed to the fixed nail piece is provided on one side of the locking protrusion, which is used to penetrate and connect the nylon climbing rope and play a limiting role; The nylon climbing ropes are provided in multiple groups and extend through the first anti-tension rings which are provided at equal distances from the upper surface of the fixing bar.

[0013] As a further solution of the present invention: one end of the nylon climbing rope is wrapped and connected with a connecting ring, and a plurality of groups of anti-spiking blocks are symmetrically arranged on the outside of the embedded rod to which the outer end of the connecting ring is fixedly connected, and are used to be inserted into the expansive soil base layer for fixing.

[0014] As a further solution of the present invention: an internal threaded piece matching and connected to the external threaded piece is provided in the anchor body.

[0015] Beneficial effects of the present invention: 1. By using a fixed stopper to penetrate the fixed collar and the fixed ring tube, the fixing strip and the adjacent distributed monomers are fixed in position, so that the fixed stopper is rotated through the annular fixing groove and is threadedly connected to the internal thread sheet provided on the inner side of the anchor body. The waterproof blanket body can be distributed and limited in an array through the fixing strip, thereby improving the protective effect of the waterproof blanket body on the expansive soil base surface layer; In addition, a nylon climbing rope is respectively passed through the first anti-tension ring and the second anti-tension ring. By rotating the fixed nail piece, the fixing protrusion is made to fit closely against the annular fixing groove and then rotated to engage with the limiting hole groove, so that the nylon climbing rope can be pulled in and out. Under the action of the nylon climbing rope, the fastening effect of the fixing strip and the waterproof blanket body, as well as the fixing strip and the fixed nail piece is improved, thereby avoiding the waterproof blanket body from increasing the gap with the expansive soil base layer due to water or rain, thereby causing dislocation or falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the connection between the fixing strip and the fixed limiting member of the present invention; Figure 2 This is a schematic diagram of the overall structure of the connection between the fixed limiting member and the fixed nail-piercing member of the present invention; Figure 3 This is a schematic diagram of the overall structure of the connection between the fixed limiting member and the external threaded piece of the present invention; Figure 4 This is a schematic diagram of the overall structure of the connection between the fixed stopper and the conical pipe section of the present invention; Figure 5 This is a schematic diagram of the overall structure of the connection between the fixed nail-piercing member and the locking protrusion of the present invention; Figure 6 This is a schematic diagram of the overall cross-sectional structure of the connection between the fixed limiting member and the fixed nail-piercing member of the present invention; Figure 7 This is a schematic diagram of the front cross-sectional structure of the connection between the fixing strip and the waterproof blanket body of the present invention; Figure 8 This is a schematic top view of the structure of the first anti-tension ring connected to the nylon climbing rope of the present invention; Figure 9 It is a schematic front cross-sectional structural diagram of the connection between the nylon climbing rope and the connecting ring member of the present invention.

[0018] In the figure: 1. Fixing strip; 101. Fixing collar; 102. Fixing ring tube; 103. Anti-slipping protrusion; 104. First anti-tension ring; 2. Waterproof blanket body; 3. Fixing limiter; 301. Conical pipe section; 302. External threaded piece; 303. Annular fixing groove; 304. Limiting hole groove; 305. Damping spring; 4. Fixing nail piece; 401. Locking protrusion; 402. Second anti-tension ring; 5. Anchor body; 501. Internal threaded piece; 6. Nylon climbing rope; 601. Connecting ring; 602. Embedded rod; 603. Anti-spiking block; 7. Expansive soil base surface layer. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] See also Figure 1-9 As shown, the present invention is a bentonite waterproof blanket fixing device suitable for expansive soil slopes.

[0021] Example 1 See also Figure 1 、 Figure 2 、 Figure 6 and Figure 7 The present invention provides a technical solution: a fixing strip 1, a plurality of fixing strips 1 are arranged on the upper surface of a waterproof blanket body 2, a fixing limiter 3 is provided between the fixing strip 1 and another adjacent unit, and the fixing limiter 3 passes through the waterproof blanket body 2 and is fixed to the anchor body 5; The inner side of the fixed limiter 3 is connected with a fixed nail 4 for fixing the waterproof blanket body 2; A fixing collar 101 and a fixing ring tube 102 are respectively provided at both ends of the fixing strip 1. The fixing collar 101 and the fixing ring tube 102 are overlapped and arranged in the same center to penetrate and fix the fixing stopper 3. In the embodiment, the longitudinal cross-section of the fixed ring tube 102 is a "T"-shaped structure, which is used to cooperate with the conical tube section 301 provided on the fixed stopper 3; In the embodiment, an internal thread piece 501 is provided in the anchor body 5 and is matched with the external thread piece 302 .

[0022] In the embodiment, anti-slip bumps 103 are equidistantly provided on the joint surface between the fixing strip 1 and the waterproof blanket body 2 , and the anti-slip bumps 103 are intermittently provided with first anti-tension rings 104 on the symmetric surface of the fixing strip 1 .

[0023] Specifically, an anchor body 5 is pre-buried in the expansive soil base layer 7, wherein the anchor body 5 is a PC part. A pre-buried pit is dug in the expansive soil base layer 7 by excavating equipment, and the anchor body 5 is placed and filled so that the anchor body 5 is exposed for subsequent fixed installation with the fixed limiter 3. At this time, the waterproof blanket body 2 is flatly and evenly laid down from top to bottom along the expansive soil base layer 7, and then the fixing strip 1 is affixed to the outside of the laid waterproof blanket body 2, and is spliced ​​and installed along the length and width direction of the waterproof blanket body 2, that is, the fixing strip 1 is used to lay along the expansive soil base layer 7. The base surface layer 7 is laid in the extending direction of the inclined surface or plane. In order to ensure the combination between the fixing strips 1, a fixing collar 101 and a fixing ring tube 102 are arranged in the same center after being overlapped and connected, and the fixing collar 101 is located at the lower end of the fixing ring tube 102. The fixing limiter 3 can be manually or with auxiliary equipment to pass through the fixing collar 101 and the fixing ring tube 102 of the adjacent fixing strips 1, thereby ensuring that the waterproof blanket body 2 is attached to the surface of the expansive soil base surface layer 7, so as to ensure the reliability of the combination of the waterproof blanket body 2 and the expansive soil base surface layer 7; Furthermore, after the fixed limiting member 3 passes through the fixed collar 101 and the fixed ring tube 102, the external threaded piece 302 provided on the outer side of the lower end can be threadedly connected to the internal threaded piece 501 provided on the inner side of the anchor body 5, thereby ensuring the reliability of the combination of the fixed limiting member 3 and the anchor body 5, so that the fixing strip 1 can be fixedly installed against the outer side of the waterproof blanket body 2 for fixed point limitation. Among them, the fixing strip 1 is made of polymer plastic or metal material and can produce a certain degree of bending. When the fixing strip 1 is attached to the outer side of the laid waterproof blanket body 2, the fixing strip 1 can be fixed to the outer side of the waterproof blanket body 2 by rotating the fixed limiting member 3. The waterproof blanket body 2 is adapted to the undulations of the expansive soil base layer 7, and when the waterproof blanket body 2 expands due to water or rain, the waterproof blanket body 2 is further pressed against the soil of the expansive soil base layer 7, so as to eliminate the gap between the waterproof blanket body 2 and the expansive soil base layer 7, thereby ensuring the slope protection capability of the waterproof blanket body 2 for the expansive soil base layer 7. Anti-slip bumps 103 are evenly distributed at the lower end of the fixing strip 1, and can make the anti-slip bumps 103 contact the outer surface of the waterproof blanket body 2 when the fixing strip 1 and the waterproof blanket body 2 are in contact with each other, so as to improve the close contact effect between the fixing strip 1 and the waterproof blanket body 2, and further prevent the possibility of displacement of the waterproof blanket body 2.

[0024] Example 2 See also Figure 1-Figure 7 The present invention provides a technical solution: the cross-sectional dimension of one end of the fixed stopper 3 is larger than the cross-sectional dimension of the other end, and an external thread piece 302 is provided on the outer side of the end of the fixed stopper 3 with a slightly smaller cross-sectional dimension; The conical pipe section 301 is located at the end of the fixed limiting member 3 with a slightly larger cross section.

[0025] In the embodiment, an annular fixing groove 303 is provided on the inner side of the end of the fixed limiting member 3 with a slightly larger cross section, and a plurality of limiting hole grooves 304 are opened on the inner side of the annular fixing groove 303; A damping spring 305 is provided on the inner wall of the fixed limiter 3 , and both ends of the damping spring 305 are respectively located between the inner lower side of the fixed limiter 3 and the fixed nail piercing member 4 , for causing the fixed nail piercing member 4 to reciprocate up and down.

[0026] In an embodiment, the fixed nail-piercing member 4 is rotatably arranged above the fixed limit member 3, and a locking protrusion 401 is distributed on the outer side of one end of the fixed nail-piercing member 4. The fixed nail-piercing member 4 passes through the fixed limit member 3 through the locking protrusion 401, and is fitted with the annular fixing groove 303 and then rotated through the limiting hole groove 304 to be locked and fixed with the fixed limit member 3.

[0027] Specifically, in combination with the first embodiment, the longitudinal sections of the fixed ring tube 102 and the conical tube section 301 are both "T"-shaped structures, and the cross section of the conical tube section 301 is smaller than the cross section of the fixed ring tube 102. When the fixed stopper 3 is rotated, the conical tube section 301 cooperates with the "T"-shaped structure of the fixed ring tube 102. In order to ensure the reliability of the fixed stopper 3 and the anchor body 5, the cross section of one end of the fixed stopper 3 is set to be larger than the cross section of the other end, and is connected with the anchor body 5 to make the fixed stopper 3 The fixed stopper 3 can be fastened to the internal thread piece 501 provided on the inner side of the anchor body 5 through the external thread piece 302, so that the leaking part of the anchor body 5 is fixed to the fixed stopper 3. When the waterproof blanket body 2 is laid on the expansive soil base layer 7, the waterproof blanket body 2 is fixed to the fixed stopper 3 by the fixed nail piece 4 penetrating the waterproof blanket body 2, and one end of the fixed stopper 3 is fixed to the anchor body 5 by rotation, thereby ensuring the reliability of the fixation of the entire device to the expansive soil base layer 7 and ensuring the bonding of the entire waterproof blanket body 2 to the expansive soil base layer 7. When the fixing limiter 3 is unlocked, the fixing limiter 3 is unlocked, and the fixing limiter 3 is unlocked. The fixing limiter 3 is unlocked after the fixing limiter 3 is unlocked.

[0028] Example 3 See also Figure 6 、 Figure 7 、 Figure 8 and Figure 9 The present invention provides a technical solution: a second anti-tension ring 402 fixed to the fixed nail member 4 is provided on one side of the locking protrusion 401, which is used to penetrate and connect the nylon climbing rope 6 and play a limiting role; There are multiple groups of nylon climbing ropes 6 , which extend through the first tensile rings 104 equidistant from the upper surface of the fixing bar 1 .

[0029] In the embodiment, one end of the nylon climbing rope 6 is wrapped with a connecting ring 601, and multiple groups of anti-spiking blocks 603 are symmetrically arranged on the outside of the embedded rod 602 fixedly connected to the outer end of the connecting ring 601, which are used to be inserted into the expansive soil base layer 7 for fixing.

[0030] Specifically, in combination with the first and second embodiments, the upper surface of the fixing bar 1 is provided with first anti-tension rings 104 equidistantly distributed. At this time, the nylon climbing rope 6 is passed through the first anti-tension ring 104 and the second anti-tension ring 402 provided at the outer end of the fixing nail piece 4, so that the fixing bar 1 and the fixing nail piece 4 can be further connected. Then, the nylon climbing rope 6 is wrapped and connected with the connecting ring 601. When the nylon climbing rope 6 is flattened, the nylon climbing rope 6 forms a mesh structure on the fixing bar 1 and the fixing nail piece 4. Then, the connecting ring 601 is obliquely inserted into the expansive soil base layer 7 through the anti-spiking blocks 603 symmetrically staggeredly distributed on the outside of the embedded rod 602. The inclination angle is about 45°, and the insertion angle is such that the connecting ring 601 moves outward away from the waterproof blanket body 2 and the embedded rod 602 moves inward close to the waterproof blanket body 2, so that the nylon climbing rope 6 forms a certain tension, which plays a role in lateral stretching and pressing the fixing bar 1 and the waterproof blanket body 2. Furthermore, at this time, the fixed nail piece 4 is rotated so that the lower end of the fixed nail piece 4 can elastically expand and contract in the fixed limit piece 3 through the damping spring 305, and then the locking protrusion 401 can be rotated and engaged with the limiting hole groove 304 after being fitted through the annular fixed groove 303. The rotation of the fixed nail piece 4 causes the second anti-tension ring 402 to drive the nylon climbing rope 6 to rotate with the fixed nail piece 4 as the center point, which can stretch and tighten the nylon climbing rope 6, thereby improving the connection tightness between the fixing bar 1 and the waterproof blanket body 2 and the fixing bar 1 and the fixed nail piece 4, thereby ensuring the close combination of the waterproof blanket body 2 and the expansive soil base layer 7. At the same time, the anti-slip protrusions 103 equidistantly distributed on the lower surface of the fixing bar 1 can be used to press the waterproof blanket body 2. Through the symmetrical and array-like distribution, the waterproof blanket body 2 can be tightly fitted with the outer surface of the expansive soil base layer 7.

[0031] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A bentonite waterproof blanket fixing device suitable for expansive soil slopes, characterized in that: It comprises fixing strips (1), wherein the fixing strips (1) are arranged in multiple groups on the upper surface of the waterproof blanket body (2), a fixing limiter (3) is provided between the fixing strips (1) and another adjacent unit, and the fixing limiter (3) passes through the waterproof blanket body (2) and is fixed to the anchor body (5); The inner side of the fixed limiting member (3) is snap-connected with a fixed nail member (4) for fixing the waterproof blanket body (2).

2. A bentonite waterproof blanket fixing device suitable for expansive soil slopes according to claim 1, characterized in that: A fixing collar (101) and a fixing ring tube (102) are respectively provided at both ends of the fixing strip (1). The fixing collar (101) and the fixing ring tube (102) are overlapped and arranged at the same center, and are used to penetrate and fix the fixing limiter (3).

3. A bentonite waterproof blanket fixing device suitable for expansive soil slopes according to claim 2, characterized in that: The longitudinal cross-section of the fixed ring tube (102) is a "T"-shaped structure, and is used in conjunction with the conical tube section (301) provided on the fixed stopper (3).

4. A bentonite waterproof blanket fixing device suitable for expansive soil slopes according to claim 2, characterized in that: Anti-slip bumps (103) are equidistantly provided on the joint surface between the fixing strip (1) and the waterproof blanket body (2), and the anti-slip bumps (103) are intermittently provided with first anti-tension rings (104) on the symmetrical surface of the fixing strip (1).

5. The bentonite waterproof blanket fixing device suitable for expansive soil slope according to claim 1, characterized in that: The cross-sectional dimension of one end of the fixed stopper (3) is larger than the cross-sectional dimension of the other end, and an external thread piece (302) is provided on the outer side of the end of the fixed stopper (3) with a slightly smaller cross-sectional dimension; The conical pipe section (301) is located at the end of the fixed limiting member (3) with a slightly larger cross section.

6. A bentonite waterproof blanket fixing device suitable for expansive soil slopes according to claim 5, characterized in that: An annular fixing groove (303) is provided on the inner side of the end of the fixed limiting member (3) with a slightly larger cross section, and a plurality of limiting hole grooves (304) are provided on the inner side of the annular fixing groove (303); A damping spring (305) is provided on the inner wall of the fixed limiting member (3), and both ends of the damping spring (305) are respectively located between the inner lower side of the fixed limiting member (3) and the fixed nail-piercing member (4), and are used to cause the fixed nail-piercing member (4) to reciprocate up and down.

7. A bentonite waterproof blanket fixing device suitable for expansive soil slopes according to claim 6, characterized in that: The fixed nail-piercing member (4) is rotatably arranged above the fixed limiting member (3), and a locking protrusion (401) is distributed on the outer side of one end of the fixed nail-piercing member (4). The fixed nail-piercing member (4) passes through the fixed limiting member (3) through the locking protrusion (401), and after being fitted with the annular fixing groove (303), it rotates through the limiting hole groove (304) to be locked and fixed with the fixed limiting member (3).

8. The bentonite waterproof blanket fixing device suitable for expansive soil slope according to claim 7, characterized in that: A second anti-tension ring (402) fixed to the fixed nail member (4) is provided on one side of the locking protrusion (401) and is used to penetrate and connect the nylon climbing rope (6) to limit the position; The nylon climbing ropes (6) are provided in multiple groups and extend through first tension rings (104) that are equidistant from the upper surface of the fixing bar (1).

9. A bentonite waterproof blanket fixing device suitable for expansive soil slopes according to claim 8, characterized in that: One end of the nylon climbing rope (6) is wound around and connected to a connecting ring (601), and a plurality of groups of anti-spiking blocks (603) are symmetrically arranged on the outer side of a pre-buried rod (602) fixedly connected to the outer end of the connecting ring (601), and are used to be inserted into the expansive soil base surface layer (7) for fixing.

10. The bentonite waterproof blanket fixing device suitable for expansive soil slope according to claim 1, characterized in that: An internal thread piece (501) is provided in the anchor body (5) and is matched and connected with the external thread piece (302).

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