A soft-cutting anti-seepage wall construction auxiliary device and construction process

Abstract

The present application relates to a soft-cutting anti-seepage wall construction auxiliary device and a construction process, which belongs to the technical field of building construction, and comprises S1, forming a groove for the first anti-seepage wall and pouring super-slow-setting micro-expansive concrete; S2, forming a groove for the adjacent groove section on one side of the first section, with the construction time not exceeding three days from the pouring time of the first section, cutting the concrete of the adjacent first groove section, with the cutting section not less than 200mm; pouring super-slow-setting micro-expansive concrete; S3, forming a groove for the adjacent groove section on the other side of the first section, cutting the concrete of the adjacent first groove section, with the cutting section not less than 800mm, and pouring super-slow-setting micro-expansive concrete; S4, redetermining the first groove section, repeating S2 or S3 according to the redetermined first groove section concrete pouring time, to ensure that the adjacent sections and the first section determined each time are effectively connected and closed; S5, repeating S4 until the anti-seepage wall construction is completed. The present application has the effect of ensuring the closing effect of the anti-seepage wall and the water-stopping effect of the anti-seepage wall.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a soft-cutting anti-seepage wall construction auxiliary device and construction process. Background Art

[0002] Pile-anchor support is a foundation pit support system in which one end of a tension rod is anchored in the stable stratum of the excavated foundation pit, while the other end is connected to a support pile. Developed based on the mature theoretical research of rock anchors, it is a retaining structure widely used in slope and deep foundation pit support projects due to its safety and economical nature. During construction within the foundation pit, the excavation and the pile-anchor support system do not interfere with each other, effectively shortening the construction period. This system is particularly suitable for complex construction sites and foundation pit projects with strict deadlines. To address the complex strata in mining and geological conditions, rotary drilling rigs are often used for drilling support piles.

[0003] The cut-off wall is an underground continuous wall that serves as a water-cutting, anti-seepage, load-bearing and water-retaining structure.

[0004] The existing construction site was narrow, and due to rising groundwater levels, the existing pile-anchor support system required the construction of an anti-seepage wall to ensure water-stopping effectiveness and reduce project costs. The varying hardness of the soil layers and the presence of numerous obstacles within the strata necessitated the use of rotary drilling rigs to excavate the complex geology during the guide wall excavation process and to locate the joint pipes.

[0005] During the construction of a rotary drilling rig, a worker is often required to assist the driver in positioning the drill bit so that the drill bit can be accurately lowered into the casing. During the lowering process, the driver's mechanical operating lever cannot shake to ensure the accuracy of the casing position. However, during the construction process, the uneven hardness of the soil layer and obstacles in the soil layer will also affect the drill bit and drill rod, causing the casing to deflect. Once the casing deflection exceeds the error range, the subsequent rotary drilling construction will infinitely magnify the deviation as the excavation depth increases, affecting the construction accuracy. Summary of the Invention

[0006] In order to ensure construction accuracy, timely detect whether the offset of the casing exceeds the error range, and ensure the support and water-stopping effect of the slope protection piles and the anti-seepage wall, this application provides a soft-cutting anti-seepage wall construction auxiliary device and construction process.

[0007] In a first aspect, the present application provides a soft-cutting anti-seepage wall construction auxiliary device, which adopts the following technical solutions:

[0008] A soft-cutting anti-seepage wall construction auxiliary device includes a bottom alarm, which is used to issue an alarm when the bottom alarm itself is squeezed. It also includes an adjusting tube, a cantilever assembly, a traction rope and a falling ball. The cantilever assembly includes a positioning tube and a telescopic tube. The telescopic tube is slidably connected to the positioning tube and the center lines of the two are collinear. The end of the positioning tube away from the telescopic tube is connected to the inside of the adjusting tube. There is an angle between the center lines of the adjusting tube and the positioning tube. One end of the traction rope is fixedly connected to the end of the telescopic tube away from the positioning tube, and the other end is slidably connected to the adjusting tube and fixedly connected to the falling ball. The bottom alarm is slidably arranged on the adjusting tube and is located below the falling ball. When the adjusting tube slides along the length direction of the positioning tube, the falling ball moves in the direction close to or away from the bottom alarm.

[0009] By adopting the above technical solution, one end of the adjusting tube is embedded in the ground and close to the outer wall of the casing. The telescopic tube is slid so that the end of the telescopic tube abuts against the outer wall of the casing. The bottom alarm is slid so that the bottom alarm is directly below the falling ball. The distance reserved between the two is the error value of the allowable inclination of the steel casing. During the construction process, when the casing exceeds the allowable deviation value, the falling ball will press down the bottom alarm, thereby sounding an alarm to remind the staff, so as to timely discover whether the offset of the casing exceeds the error range, and ensure the support and water-stopping effect of the slope protection piles and the anti-seepage wall after construction.

[0010] Optionally, a suction cup is provided at one end of the telescopic tube away from the positioning tube; a top alarm is slidably provided on the inner wall of the adjusting tube, the top alarm is located above the falling ball, and the top alarm is used to sound an alarm when it is squeezed by the falling ball.

[0011] By adopting the above technical solution, the suction cup is adsorbed on the outer wall of the casing. When the casing is excessively tilted toward the direction close to the regulating tube, the bottom alarm will sound an alarm. When the casing is excessively tilted toward the direction away from the regulating tube, the top alarm will sound an alarm. A single auxiliary device can monitor and alarm whether the casing is excessively tilted in two directions. Under the premise of ensuring the monitoring and alarm of the casing, the auxiliary device is more suitable for narrow sites.

[0012] Optionally, the end face of the suction cup is covered with an adhesive surface, and the adhesive surface is bonded to the outer wall of the casing; the traction rope is located inside the telescopic tube, one end of the traction rope is fixedly connected to the inner wall of the telescopic tube, and the other end passes through the interior of the positioning tube and extends into the adjusting tube, the falling ball, the top alarm and the bottom alarm are all located in the adjusting tube, the positioning tube is threadedly connected to the adjusting tube, and the two are arranged vertically.

[0013] By adopting the above technical solution, the adhesive surface enhances the firmness of the connection between the suction cup and the casing. The traction rope and the drop ball are placed inside the adjustment tube, and the adjustment tube and the positioning tube are arranged vertically, ensuring the stability of the drop ball's fall and overcoming the influence of the external environment, such as wind. The gravity of the drop ball is utilized to ensure that the traction rope is in a tensioned state. The positioning tube and the adjustment tube are threaded together, and the positioning tube is rotated to adjust the length of the positioning tube inside the adjustment tube. This ensures that the traction rope inside the adjustment tube is located at the centerline of the adjustment tube, providing sufficient space for the drop ball to fall and reducing the probability of the drop ball colliding with the inner wall of the adjustment tube.

[0014] Optionally, the suction cup includes a deformation zone and a non-deformation zone. After the deformation zone is deformed, the air inside the suction cup is squeezed so that the suction cup is adsorbed on the outer wall of the casing. The non-deformation zone is made of hard material. A reinforcement component is arranged between the suction cup and the telescopic tube. The reinforcement component includes an air cushion, a connecting rod and a limit rod. The circumferential outer wall of the air cushion is always close to the inner wall of the non-deformation zone. One end of the connecting rod passes through the non-deformation zone and is fixedly connected to the air cushion, and the other end is ball-hinged to the end of the telescopic tube; one end of the limit rod is hinged to the outer wall of the connecting rod, and the other end is plug-connected to the outer wall of the telescopic tube.

[0015] By adopting the above technical solution, the deformation zone ensures that the suction cup can be adsorbed on the outer wall of the casing, while the non-deformation zone ensures that the suction cup can transmit the degree of inclination of the casing, avoiding the situation where the casing is tilted and the entire amount of inclination deforms the suction cup, but is not fully transmitted to the telescopic tube, resulting in the falling ball failing to trigger the alarm in time. The ball hinge method is also intended to reduce the deformation of the suction cup and transmit the inclination of the casing to the displacement of the telescopic tube as much as possible. After the suction cup is adsorbed on the outer wall of the casing, the limit rod is inserted into the outer wall of the telescopic tube, and the positioning tube is rotated to adjust the end of the positioning tube located inside the adjustment tube to the center position of the adjustment tube, while driving the air cushion to move away from the casing, thereby further enhancing the firmness of the adsorption between the suction cup and the casing.

[0016] Optionally, the regulating tube is made of a transparent material, a magnet is provided on the outer wall of the regulating tube, and the top alarm and the bottom alarm are both magnetically adsorbed and connected to the magnet.

[0017] By adopting the above technical solution, the transparent adjustment tube makes it easy for workers to observe the distance between the top alarm and the bottom alarm and the falling ball, and the top alarm or the bottom alarm is adsorbed by the magnet, so as to achieve the effect of quickly adjusting the position of the top alarm and the bottom alarm.

[0018] Optionally, a check assembly is provided between the telescopic tube and the positioning tube, and the end of the positioning tube is inserted into the telescopic tube; the check assembly includes a check bar and a rack, the rack is embedded and fixed on the outer wall of the positioning tube, the rack is arranged along the length direction of the positioning tube, and a long hole is opened on the telescopic tube along the length direction of the telescopic tube, the check bar is rotatably arranged in the long hole, and the check bar cooperates with the rack to limit the movement of the telescopic tube away from the positioning tube, but does not hinder the movement of the telescopic tube toward the positioning tube.

[0019] By adopting the above technical solution, when encountering the phenomenon of regional voids in the geology, the drill rod will suddenly lose the resistance of the soil layer, causing the drill rod to suddenly tilt. After penetrating the void, the drill rod will continue to drill along the tilting trend or the shaking after the sudden tilt will eventually continue to drill along the original trajectory. The casing will suddenly tilt and then straighten. When the casing suddenly tilts away from the adjusting tube, the traction rope will pull the top alarm away through the falling ball, and the workers can clearly see the phenomenon; when the casing suddenly tilts toward the adjusting tube and then resets, the original falling ball will press down the bottom alarm to emit a short alarm, which is easy to miss if the staff is not paying attention. The non-return assembly will limit the telescopic tube to the positioning tube in one direction, so that the staff can clearly know that the casing has suddenly deflected.

[0020] Optionally, a fence assembly is provided on the telescopic tube, and the fence assembly includes an outer tube, an inner tube, a positioning wire and a winding shaft. The outer tube is sleeved on the outer wall of the inner tube, and the outer tube is threadedly connected to the inner tube. One end of the inner tube is slidingly connected to the telescopic tube, and the sliding direction is along the length direction of the telescopic tube. The center line of the winding shaft is colinear with the center line of the inner tube. The winding shaft is rotatably arranged inside the inner tube, and the positioning wire is wound on the winding shaft. One end of the positioning wire passes through the inner tube and is located outside the inner tube; the end face of one end of the outer tube abuts against the outer wall of the telescopic tube, and the positioning wire passing through the inner tube is located between the outer tube and the telescopic tube; there are multiple groups of auxiliary devices, and the positioning wire is located on the outside of the inner tube and is hung on an adjacent fence assembly.

[0021] By adopting the above technical solution, multiple auxiliary devices surround the casing, and no matter which direction the casing is tilted, it can be monitored. The setting of the outer tube can not only realize the positioning of the inner tube after sliding, but also fix the positioning line in its own fence component, and at the same time fix the cantilevered end of the positioning line in the adjacent fence component, that is, the end of the positioning line in the adjacent fence component is also squeezed and fixed on the outer wall of the telescopic tube by the outer tube.

[0022] Optionally, a base is provided on the inner tube, and a coil spring, a positioning ring and a spring are provided on the base, the coil spring ring is sleeved on the outer wall of the positioning ring, one end of the coil spring is fixedly connected to the positioning ring, and the other end is first fixedly connected to the base and then slidably connected to the inner wall of the inner tube, and the sliding direction is along the length direction of the inner tube. A sliding groove is provided on the inner wall of the inner tube, and the end of the coil spring is located in the sliding groove; one end of the spring is fixedly connected to the base, and the other end is fixedly connected to the inner tube, and the length direction of the spring is along the length direction of the inner tube; when the spring is not subjected to external force, the positioning ring is sleeved on the winding shaft, and the cross-section of the ring sleeve is non-circular.

[0023] By adopting the above technical solution, when the positioning line is about to be stretched to the appropriate length, the positioning ring is put on the reel and the rope positioning line is continued to be pulled. At this time, the coil spring generates a reeling force, so that the positioning line is as tensioned as possible, ensuring that the positioning line can be tangent to the outer wall of the casing, and more accurately feedback the inclination degree of the casing.

[0024] Optionally, when the spring is in a stretched state, the positioning ring is still looped on the winding shaft. At this time, the cross-section of the winding shaft where the positioning ring is located is circular, and the inner wall of the positioning ring is tangent to the outer wall of the winding shaft.

[0025] By adopting the above technical solution, the positioning ring never separates from the winding shaft, providing a guide for the extension and contraction of the spring.

[0026] In a second aspect, the present application provides a soft-cutting anti-seepage wall construction process, which adopts the following technical solutions:

[0027] A soft cutting anti-seepage wall construction process comprises the following steps:

[0028] S1. The first section of the anti-seepage wall is trenched and super slow-setting micro-expansion concrete is poured;

[0029] S2. Concrete the adjacent trench section on one side of the first section, with the construction time no more than three days after the first section is poured. Cut the concrete of the adjacent trench section of the first section, with the cut section not less than 200mm; pour super slow-setting micro-expansive concrete.

[0030] S3. Concrete is cut into the adjacent trench section on the other side of the first section. The cut section is not less than 800mm. The concrete of the first trench section has been poured for more than three days. The cutting is carried out to the bottom of the trench using a rotary drilling rig. Auxiliary equipment is used to position the casing during the rotary drilling rig construction. Ultra-slow setting micro-expansive concrete is poured.

[0031] S4. Re-determine the first trough section, and repeat S2 or S3 according to the re-determined concrete pouring time of the first trough section to ensure that the adjacent sections and the first section determined each time are effectively connected and closed;

[0032] S5. Repeat S4 until the construction of the cut-off wall is completed.

[0033] In some construction areas, the existing slope protection piles and anti-seepage walls are close to each other, the working surface is narrow, and the guide wall surface is too small to lift and pull out the joint pipe according to conventional operations. In addition, the wall brush can only clean the raised parts, and the groove parts are difficult or impossible to clean properly, which easily forms inclusions, affecting the closing effect of the anti-seepage wall and thus affecting the water-stopping effect. By adopting the above technical solution and utilizing the cutting section, the two adjacent groove sections constructed at different times can be effectively connected and closed, overcoming construction factors such as small space. In addition, how to cut the cutting section and adopt different construction equipment and auxiliary devices according to the concrete pouring time ensure the accuracy of construction and avoid the occurrence of excavation deviation and other phenomena.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. The soft-cutting anti-seepage wall construction process overcomes the defects in some areas where the existing slope protection piles and anti-seepage walls are close to each other, the working surface is narrow, the guide wall surface is too small, and conventional operations such as hoisting and pulling out joint pipes are impossible. In addition, the excavation groove cannot be cleaned properly, resulting in inclusions and affecting the closure effect of the anti-seepage wall.

[0036] 2. The setting of the reinforcement component not only cooperates with the rotation of the positioning tube to adjust the position of the traction rope inside the adjustment tube, but also has the effect of pumping air from the internal space of the suction cup, thereby enhancing the stability of the adsorption between the suction cup and the casing;

[0037] 3. The suction cup is adsorbed on the outer wall of the casing. When the casing tilts too much toward the direction close to the regulating tube, the bottom alarm will sound an alarm. When the casing tilts too much away from the regulating tube, the top alarm will sound an alarm. A single auxiliary device can monitor and alarm whether the casing is excessively tilted in two directions. Under the premise of ensuring the monitoring and alarm of the casing, the auxiliary device is more suitable for small sites.

[0038] 4. The existence of the fence assembly, combined with multiple auxiliary devices, can achieve all-round detection of the casing, and make full use of the structure of the fence assembly itself, so that the end of the positioning line can be hooked on the outer wall of the adjacent inner tube and tightened and fixed through the outer tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the auxiliary device of this application;

[0040] Figure 2 It is a partial structural cross-sectional view of the auxiliary device;

[0041] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A;

[0042] Figure 4 yes Figure 2A partial enlarged schematic diagram of part B;

[0043] Figure 5 It is a partial structural cross-sectional view of the fence assembly;

[0044] Figure 6 It is a state diagram in which multiple auxiliary devices are arranged around the casing;

[0045] Figure 7 This is a schematic diagram of the first step of the soft cutting anti-seepage wall construction process;

[0046] Figure 8 This is a schematic diagram of the second step of the soft cutting cut-off wall construction process;

[0047] Figure 9 This is a schematic diagram of the third step of the soft cutting cut-off wall construction process;

[0048] Figure 10 This is the status diagram after the third step of pouring in the soft cutting anti-seepage wall construction process.

[0049] Explanation of the accompanying reference numerals: 1. Cantilever assembly; 11. Positioning tube; 12. Telescopic tube; 2. Pulling rope; 21. Falling ball; 22. Bottom alarm; 23. Top alarm; 24. Magnet; 25. Long hole; 3. Adjusting tube; 4. Suction cup; 41. Adhesive surface; 42. Deformation zone; 43. Non-deformation zone; 5. Reinforcement assembly; 51. Air cushion; 52. Connecting rod; 53. Limiting rod; 6. Check assembly; 61. Check strip; 62. Rack; 7. Base; 71. Coil spring; 72. Positioning ring; 73. Spring; 8. Fence assembly; 81. Outer tube; 82. Inner tube; 821. Slide groove; 822. Hidden groove; 83. Positioning line; 84. Reel; 9. Extension tube; 91. Positioning disk; 92. Level bead. DETAILED DESCRIPTION

[0050] The following is combined with Figure 1-10 This application is described in further detail.

[0051] The embodiment of the present application discloses a soft-cutting anti-seepage wall construction auxiliary device.

[0052] refer to Figure 1 and Figure 2When the casing is tilted and deflected, a bottom alarm 22 is provided in the adjusting pipe 3, and an alarm is sounded by the bottom alarm 22, so that the operator can find the deflection of the casing in time and adjust the casing to ensure the accuracy of construction and the support and water-stopping effect of the slope protection piles and the anti-seepage wall after construction.

[0053] refer to Figure 1 and Figure 2 The adjusting tube 3 is arranged vertically, and an extension tube 9 is provided at the bottom of the adjusting tube 3. The centerline of the adjusting tube 3 is collinear with the centerline of the extension tube 9. The bottom of the adjusting tube 3 is inserted into the extension tube 9. A bolt is threadedly connected to the outer wall of the extension tube 9. After the bolt penetrates the extension tube 9, it presses against the outer wall of the adjusting tube 3, thereby fixing the position of the adjusting tube 3. A positioning plate 91 is fixed to the outer wall of the extension tube 9 in an annular ring. The positioning plate 91 is arranged perpendicular to the extension tube 9. A leveling bead 92 is fixed to the top surface of the positioning plate 91. The leveling bead 92 can be used to observe whether the extension tube 9 is in a vertical position after being inserted into the ground. After the extension tube 9 is inserted into the ground, the positioning plate 91 contacts the ground.

[0054] refer to Figure 1 and Figure 2 The cantilever assembly 1 includes a positioning tube 11 and a telescopic tube 12. The positioning tube 11 is arranged horizontally. One end of the positioning tube 11 passes through the interior of the adjusting tube 3. The positioning tube 11 is threadedly connected to the adjusting tube 3. The other end of the positioning tube 11 is inserted into the telescopic tube 12. The center lines of the positioning tube 11 and the telescopic tube 12 are collinear, and the telescopic tube 12 slides along the length direction of the positioning tube 11.

[0055] refer to Figure 2 and Figure 3A check assembly 6 is disposed between the telescopic tube 12 and the positioning tube 11. The check assembly 6 comprises a check bar 61 and a rack 62. An elongated hole 25 is defined in the telescopic tube 12, extending along its length. The check bar 61 is positioned within the elongated hole 25. The check bar 61 is pivotally connected to the telescopic tube 12, with a pivot axis perpendicular to the telescopic tube 12 and disposed horizontally within the elongated hole 25. One end of the check bar 61 extends through the elongated hole 25 and is positioned within the telescopic tube 12, while the other end is positioned outside the telescopic tube 12. A check elastic member is secured between the outer wall of the telescopic tube 12 and the check bar 61. This check elastic member may be a spring or other elastic member capable of providing a restoring force to the check bar 61. The rack 62 is embedded and fixed on the outer wall of the positioning tube 11. The teeth of the rack 62 are tilted upward in the direction close to the adjusting tube 3, and the initial state of the check bar 61 is also tilted, and the tilt direction is tilted upward in the direction close to the adjusting tube 3. When the telescopic tube 12 wants to slide away from the positioning tube 11, the check bar 61 will be limited by the rack 62.

[0056] refer to Figure 2 and Figure 4 A suction cup 4 and a reinforcement component 5 are provided at the end of the telescopic tube 12 away from the positioning tube 11. The opening of the suction cup 4 is arranged away from the telescopic tube 12. A circle of adhesive surface 41 is fixed on the end face of the open end of the suction cup 4. The adhesive surface 41 is bonded to the outer wall of the casing, and the suction cup 4 itself is divided into a deformation zone 42 and a non-deformation zone 43. The deformation zone 42 is located near the opening of the suction cup 4 itself. The deformation zone 42 is made of easily deformable material, such as rubber, and the non-deformation zone 43 is made of non-deformable material. The internal space of the non-deformation zone 43 is cylindrical. The reinforcement assembly 5 includes an air cushion 51, a connecting rod 52, and a limiting rod 53. The centerline of the connecting rod 52 is collinear with the centerline of the telescopic tube 12. One end of the connecting rod 52 extends into the interior of the suction cup 4, where the air cushion 51 is located. The connecting rod 52 is fixedly connected to the air cushion 51. The air cushion 51 is cylindrical, and its circumferential sidewalls are always in contact with the inner wall of the suction cup 4. The end of the connecting rod 52, away from the air cushion 51, is ball-jointed to the end of the telescopic tube 12. One end of the limiting rod 53 is rotatably connected to the outer wall of the connecting rod 52, with the rotation axis perpendicular to the connecting rod 52 and arranged horizontally. The other end is inserted into the outer wall of the telescopic tube 12. In this embodiment, the limiting rod 53 is C-shaped.

[0057] refer to Figure 2A traction rope 2 and a drop ball 21 are provided inside the cantilever assembly 1 and the adjustment tube 3. One end of the traction rope 2 is fixedly connected to the interior of the telescopic tube 12 away from the positioning tube 11, and the other end extends into the adjustment tube 3 through the positioning tube 11. The drop ball 21 is located inside the adjustment tube 3, and the traction rope 2 is fixedly connected to the drop ball 21. The positioning tube 11 is rotated to adjust the position of the positioning tube 11 inside the adjustment tube 3 so that the traction rope 2 in its natural state inside the adjustment tube 3 is collinear with the center line of the adjustment tube 3, thereby ensuring sufficient space for the drop ball 21 and reducing the possibility of collision with the inner wall of the adjustment tube 3.

[0058] refer to Figure 2 The regulating tube 3 is made of a transparent material. A top alarm 23 and a bottom alarm 22 are both slidably mounted on the regulating tube 3. The outer walls of the top alarm 23 and the bottom alarm 22 are both made of a magnetically absorbable material. A magnet 24 is disposed on the outer wall of the regulating tube 3. The magnet 24 magnetically absorbs the top alarm 23 and the bottom alarm 22 to the regulating tube 3 through the regulating tube 3. In this embodiment, two magnets 24 are provided. The top alarm 23 and the bottom alarm 22 are adjusted according to the position of the drop ball 21. The top alarm 23 is always located above the drop ball 21 and at a certain distance from the drop ball 21. The bottom alarm 22 is always located below the drop ball 21 and at a certain distance from the drop ball 21. The distance here refers to the allowable range of the casing's tilt. When the tilt deviation of the casing exceeds the allowable value, the top alarm 23 or the bottom alarm 22 is triggered, thereby emitting an alarm sound. In this embodiment, the top alarm 23 and the bottom alarm 22 can be button alarms or other press-type alarms.

[0059] refer to Figure 2 and Figure 5 The telescopic tube 12 is provided with a fence assembly 8, which includes an outer tube 81, an inner tube 82, a positioning wire 83, and a reel 84. The inner tube 82 is vertically arranged, and the top of the inner tube 82 is slidably connected to the telescopic tube 12. In this embodiment, a slide is provided on the telescopic tube 12, extending along the length of the telescopic tube 12, and a slider is fixed to the top of the inner tube 82, which slides within the slide. The outer wall of the inner tube 82 is threaded, and the outer tube 81 is looped around the outer wall of the inner tube 82 and threadedly connected to the inner tube 82. The centerline of the reel 84 is colinear with the centerline of the inner tube 82. The reel 84 is rotatably arranged inside the inner tube 82, and the rotation axis is the centerline of the reel 84 itself. The positioning wire 83 is wound around the reel 84. One end of the positioning wire 83 passes through the inner tube 82 and is lowered to the outside of the inner tube 82, and a hook is fixed to the end. The outer tube 81 is rotated until the top end of the outer tube 81 abuts against the outer wall of the telescopic tube 12, thereby limiting and fixing the inner tube 82 and the positioning line 83. The positioning line 83 passes through the inner tube 82 and is located near the outer wall of the telescopic tube 12.

[0060] refer to Figure 5 The bottom end of the inner tube 82 is provided with a base 7, on which a coil spring 71, a positioning ring 72, and a spring 73 are provided. A hidden groove 822 is provided on the end surface of the bottom end of the inner tube 82, and the hidden groove 822 extends along the length of the inner tube 82. The spring 73 is located in the hidden groove 822. One end of the spring 73 is fixedly connected to the bottom of the hidden groove 822, and the other end is fixedly connected to the base 7. A sliding groove 821 is provided on the inner wall of the inner tube 82, and the sliding groove 821 extends along the length of the inner tube 82. The coil spring 71 is looped around the outer wall of the positioning ring 72. One end of the coil spring 71 is fixedly connected to the outer wall of the positioning ring 72, and the other end is first fixedly connected to the inner wall of the base 7, and then inserted into the sliding groove 821 and slides along the length of the sliding groove 821. The reel 84 itself is divided into two regions: the upper region has a non-circular cross-section, and the lower region has a circular cross-section. When the base 7 abuts the bottom end surface of the inner tube 82, the positioning ring 72 is sleeved onto the outer wall of the reel 84 and located in the non-circular cross-section region. At this time, the circular cross-section region of the reel 84 is inserted into the base 7, and the positioning ring 72 is adapted to the shape of the outer wall of the reel 84. In this embodiment, the reel 84 has a square cross-section, so the positioning ring 72 is also square. When the spring 73 is in the stretched state, the positioning ring 72 is located in the circular cross-section region of the reel 84, but at this time, the outer wall of the reel 84 is tangent to the inner wall of the positioning ring 72.

[0061] refer to Figure 6 There are multiple soft cutting anti-seepage wall construction auxiliary devices distributed around the casing.

[0062] The embodiment of the present application also discloses a soft cutting anti-seepage wall construction process.

[0063] The following steps are involved:

[0064] refer to Figure 7 , S1, the first anti-seepage wall is grooved and poured with super slow-setting micro-expansion concrete;

[0065] refer to Figure 8 S2. Trenching is carried out on the adjacent trench section on one side of the first section. The construction time shall not exceed three days from the pouring time of the first section. At this time, the concrete strength of the first section of the anti-seepage wall shall not exceed 5 MPa. The concrete of the adjacent first section of the trench shall be cut. The cutting section shall not be less than 200 mm. A troughing machine can be used for direct cutting. Then, super slow-setting micro-expansion concrete shall be poured to ensure that the adjacent sections are effectively connected and closed.

[0066] refer to Figure 9 S3, the adjacent trench section on the other side of the first section is constructed by cutting the concrete of the adjacent first section. The cutting section is not less than 800mm. The concrete of the first section has been poured for more than three days. Due to the increase in concrete strength, it is difficult for the trenching machine to cut. The cutting is carried out by a rotary drilling rig to the bottom of the trench. During the construction of the rotary drilling rig, auxiliary equipment is used to cooperate with the casing positioning;

[0067] During the construction of the rotary drilling rig, the auxiliary device cooperates to position the casing: insert the extension tube 9 into the ground around the casing, slide the adjustment tube 3, and thus adjust the vertical height of the adjustment tube 3; slide the telescopic tube 12 to make the suction cup 4 adsorb on the outer wall of the casing, insert the movable end of the limit rod 53 into the telescopic tube 12, rotate the positioning tube 11, adjust the position of the traction rope 2 and the position of the air cushion 51, and after the adjustment is completed, pull out the movable end of the limit rod 53 from the outer wall of the telescopic tube 12; pull down the base 7 and the positioning line 83 at the same time. When the positioning line 83 is about to reach the adjacent fence component 8, , the base 7 is reset, and the positioning line 83 is pulled again and hooked on the inner tube 82 of the adjacent fence component 8. At this time, the coil spring 71 generates elastic force, forcing the positioning line 83 to be stretched as tight as possible, and the outer tube 81 is rotated until it abuts against the outer wall of the telescopic tube 12. The outer tube 81 squeezes and fixes its own positioning line 83 and the hooks on the adjacent positioning line 83 at the same time; adjust the position of the top alarm 23 and the bottom alarm 22, and complete the monitoring of the casing. When the casing is offset, a hydraulic cylinder or an air cylinder can be used in combination with positioning equipment such as a level to correct the position.

[0068] refer to Figure 10 , pouring super slow setting micro expansion concrete;

[0069] S4. Re-determine the first trough section, and repeat S2 or S3 according to the re-determined concrete pouring time of the first trough section to ensure that the adjacent sections and the first section determined each time are effectively connected and closed;

[0070] S5. Repeat S4 until the construction of the cut-off wall is completed.

[0071] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A soft-cutting anti-seepage wall construction auxiliary device, comprising a bottom alarm (22), the bottom alarm (22) being used to emit an alarm sound when the bottom alarm (22) itself is squeezed, characterized in that: The invention also comprises an adjusting tube (3), a cantilever assembly (1), a traction rope (2) and a drop ball (21). The cantilever assembly (1) comprises a positioning tube (11) and a telescopic tube (12). The telescopic tube (12) is slidably connected to the positioning tube (11) and the center lines of the two are collinear. The end of the positioning tube (11) away from the telescopic tube (12) is communicated with the inside of the adjusting tube (3). The center lines of the adjusting tube (3) and the positioning tube (11) are at an angle. One end of the traction rope (2) is fixedly connected to the end of the telescopic tube (12) away from the positioning tube (11), and the other end is slidably connected to the adjusting tube (3) and fixedly connected to the drop ball (21). The bottom alarm (22) is slidably arranged on the adjusting tube (3) and is located below the drop ball (21). When the adjusting tube (3) slides along the length direction of the positioning tube (11), the drop ball (21) moves in a direction close to or away from the bottom alarm (22).

2. The soft-cutting anti-seepage wall construction auxiliary device according to claim 1, characterized in that: The telescopic tube (12) is provided with a suction cup (4) at one end away from the positioning tube (11); a top alarm (23) is slidably provided on the inner wall of the adjusting tube (3), the top alarm (23) is located above the falling ball (21), and the top alarm (23) is used to emit an alarm sound when it is squeezed by the falling ball (21).

3. The soft-cutting anti-seepage wall construction auxiliary device according to claim 2, characterized in that: The end surface of the suction cup (4) is covered with an adhesive surface (41), and the adhesive surface (41) is bonded to the outer wall of the casing; the traction rope (2) is located in the telescopic tube (12), one end of the traction rope (2) is fixedly connected to the inner wall of the telescopic tube (12), and the other end penetrates the interior of the positioning tube (11) and then penetrates into the adjusting tube (3); the falling ball (21), the top alarm (23) and the bottom alarm (22) are all located in the adjusting tube (3), and the positioning tube (11) and the adjusting tube (3) are threadedly connected, and the two are arranged vertically.

4. The soft-cutting anti-seepage wall construction auxiliary device according to claim 2, characterized in that: The suction cup (4) includes a deformation zone (42) and a non-deformation zone (43). After the deformation of the deformation zone (42), the air inside the suction cup (4) is squeezed so that the suction cup (4) is adsorbed on the outer wall of the casing. The non-deformation zone (43) is made of a hard material. A reinforcement component (5) is provided between the suction cup (4) and the telescopic tube (12). The reinforcement component (5) includes an air cushion (51), a connecting rod (52) and a limiting rod (53). The circumferential outer wall of the air cushion (51) is always in close contact with the inner wall of the non-deformation zone (43). One end of the connecting rod (52) passes through the non-deformation zone (43) and is fixedly connected to the air cushion (51), and the other end is spherically hinged to the end of the telescopic tube (12); one end of the limiting rod (53) is hinged to the outer wall of the connecting rod (52), and the other end is plug-connected to the outer wall of the telescopic tube (12).

5. The soft-cutting anti-seepage wall construction auxiliary device according to claim 3, characterized in that: The regulating tube (3) is made of a transparent material. A magnet (24) is provided on the outer wall of the regulating tube (3). The top alarm (23) and the bottom alarm (22) are both connected to the magnet (24) by magnetic adsorption.

6. The soft-cutting anti-seepage wall construction auxiliary device according to claim 2, characterized in that: A non-return assembly (6) is provided between the telescopic tube (12) and the positioning tube (11), and the end of the positioning tube (11) is inserted into the telescopic tube (12); the non-return assembly (6) comprises a non-return bar (61) and a rack (62), the rack (62) is embedded and fixed on the outer wall of the positioning tube (11), the rack (62) is provided along the length direction of the positioning tube (11), and a long hole (25) is provided on the telescopic tube (12) along the length direction of the telescopic tube (12), the non-return bar (61) is rotatably provided in the long hole (25), and the non-return bar (61) cooperates with the rack (62) to limit the telescopic tube (12) from moving away from the positioning tube (11), but does not hinder the telescopic tube (12) from moving toward the positioning tube (11).

7. The soft-cutting anti-seepage wall construction auxiliary device according to claim 1, characterized in that: The telescopic tube (12) is provided with a fence assembly (8), which includes an outer tube (81), an inner tube (82), a positioning line (83) and a reel (84). The outer tube (81) is sleeved on the outer wall of the inner tube (82). The outer tube (81) and the inner tube (82) are threadedly connected. One end of the inner tube (82) is slidably connected to the telescopic tube (12). The sliding direction is along the length direction of the telescopic tube (12). The center line of the reel (84) is collinear with the center line of the inner tube (82). The reel (84) rotates The positioning wire (83) is arranged inside the inner tube (82), and the positioning wire (83) is wound on the reel (84). One end of the positioning wire (83) passes through the inner tube (82) and is located outside the inner tube (82); the end face of one end of the outer tube (81) abuts against the outer wall of the telescopic tube (12), and the positioning wire (83) passing through the inner tube (82) is located between the outer tube (81) and the telescopic tube (12); multiple groups of auxiliary devices are provided, and one end of the positioning wire (83) is located outside the inner tube (82) and is hung on the adjacent fence component (8).

8. The soft-cutting anti-seepage wall construction auxiliary device according to claim 7, characterized in that: The inner tube (82) is provided with a base (7), and a coil spring (71), a positioning ring (72) and a spring (73) are provided on the base (7). The coil spring (71) is sleeved on the outer wall of the positioning ring (72). One end of the coil spring (71) is fixedly connected to the positioning ring (72), and the other end is first fixedly connected to the base (7) and then slidably connected to the inner wall of the inner tube (82). The sliding direction is along the length direction of the inner tube (82). A sliding groove (821) is provided on the inner wall of the inner tube (82), and the end of the coil spring (71) is located in the sliding groove (821); one end of the spring (73) is fixedly connected to the base (7), and the other end is fixedly connected to the inner tube (82). The length direction of the spring (73) is along the length direction of the inner tube (82); when the spring (73) is not subjected to external force, the positioning ring (72) is sleeved on the reeling shaft (84), and the cross-section of the sleeve is non-circular.

9. The soft-cutting anti-seepage wall construction auxiliary device according to claim 8, characterized in that: When the spring (73) is in a stretched state, the positioning ring (72) is still sleeved on the reel (84). At this time, the cross section of the reel (84) where the positioning ring (72) is located is circular, and the inner wall of the positioning ring (72) is tangent to the outer wall of the reel (84).

10. A soft cutting anti-seepage wall construction process using the auxiliary device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The first section of the anti-seepage wall is trenched and super slow-setting micro-expansion concrete is poured; S2. Concrete the adjacent trench section on one side of the first section, with the construction time no more than three days after the first section is poured. Cut the concrete of the adjacent trench section of the first section, with the cut section not less than 200mm; pour super slow-setting micro-expansive concrete. S3. Concrete is cut into the adjacent trench section on the other side of the first section. The cut section is not less than 800mm. The concrete of the first trench section has been poured for more than three days. The cutting is carried out to the bottom of the trench using a rotary drilling rig. Auxiliary equipment is used to position the casing during the rotary drilling rig construction. Ultra-slow setting micro-expansive concrete is poured. S4. Re-determine the first trough section, and repeat S2 or S3 according to the re-determined concrete pouring time of the first trough section to ensure that the adjacent sections and the first section determined each time are effectively connected and closed; S5. Repeat S4 until the construction of the cut-off wall is completed.

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