Patent Publication Number: US-2023151578-A1

Title: Construction process of soil nailing wall for geological disaster control

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims priority to Chinese Application No. 202111352411.3, filed on Nov. 16, 2021, entitled A Photoanode Film for the Photocathode Protection and the Durability Improvement of a Reinforcing Bar in Concretes, the Preparation Method thereof and A Method of Using the Photoanode Film for the Photocathode Protection and the Durability Improvement of a Reinforcing Bar in Concretes. These contents are hereby incorporated by reference. 
     TECHNICAL FIELD 
     The disclosure relates to the field of geological disaster control, in particular to a construction process of soil nailing wall for geological disaster control. 
     BACKGROUND 
     Soil nailing wall is a kind of in-situ soil reinforcement technique. The foundation pit slope is reinforced by soil nails made of steel bars. A reinforcement mesh is laid on the slope surface, and then a concrete surface layer is sprayed on the slope to reinforce the slope. It is a slope reinforcement type support construction method. Its structure is a composite formed by firmly bonding the reinforcement bars (i.e. soil nails or anchor bolts) set in the slope with the surrounding soil, and the supporting structure formed by the surface course similar to the gravity retaining wall. 
     In the existing technology, one kind of soil slope near the winding mountain road is prone to landslide, and the debris flows onto the road surface seriously affecting the traffic. When the existing device reinforces such soil slope, it directly inserts the grouting rod into the preset hole in the soil slope, which has a single function. However, after the occurrence of a slight landslide, small trees are buried in the soil slope, making some of the tree trunks extend out of the slope, and the extended tree trunks will interfere with the operation of the existing device, and seriously affects the process of installing soil nails and greatly reduces the efficiency. 
     Therefore, it is necessary to develop a construction process of soil nailing wall for geological disaster control. 
     SUMMARY 
     In order to overcome the disadvantage that after a slight landslide, small trees are buried in the soil slope, so that some of the tree trunks extend out of the slope surface, and the extended tree trunks will interfere with the operation of existing devices, greatly reducing the efficiency, the disclosure provides a soil nailing wall construction process for geological disaster control. 
     Technical solution: A construction process of soil nailing wall for geological disaster control, which adopts a construction equipment of soil nailing wall for geological disaster control, including an underframe, a handrail and wheels, a first telescopic cylinder and a support block, a lifting assembly, a fixing assembly, a cutting assembly, a tilting assembly, a clamping assembly and a reinforcement assembly; an upper right part of the underframe is fixedly connected with the handrail; four wheels are fixedly connected to a lower side of the underframe; four first telescopic cylinders are fixedly connected on an outer edge of an upper side of the underframe; lower telescopic ends of the four first telescopic cylinders are fixedly connected with a support block respectively; a left part of the upper side of the underframe is provided with the lifting assembly; the fixing assembly is arranged at a front of an upper side of the lifting assembly; the cutting assembly is arranged at a middle of the fixing assembly; the tilting assembly is arranged at a rear of the upper side of the lifting assembly; a lower part of the tilting assembly is provided with the clamping assembly; two reinforcement assemblies are arranged at a left part and a right part of a front side of the tilting assembly respectively; another two reinforcement assemblies are arranged at a left part and a right part of a rear side of the tilting assembly respectively; each of the four reinforcement assemblies is connected with the clamping assembly. 
     The construction process of soil nailing wall for geological disaster control includes the following steps: 
     S 1 : lifting, driving the fixed assembly and the cutting assembly to move to a side of the tree trunk protruding from the soil slope by the lifting assembly; 
     S 2 : clamping, clamping a root of the tree trunk extending out of the soil slope and a side far from the root by the fixing assembly; 
     S 3 : cutting, cutting the tree trunk along a middle of two clamping positions by the cutting assembly; 
     S 4 : conveying, conveying the cut tree trunk to the ground by fixing assembly; 
     S 5 : loading, manually placing a grouting rod in the clamping assembly, and fixing the grouting rod by the clamping assembly; 
     S 6 : transferring, transferring the grouting rod to a side of a soil slope hole; 
     S 7 : tilting, lifting an end of the grouting rod away from the soil slope hole upward; 
     S 8 : filling, filling the grouting rod into the soil slope hole. 
     Compared with the prior art, the disclosure has the following advantages: when in use, it can automatically cut off the tree trunks extending out of the slope, and then install the grouting rod in the soil slope holes, at the same time, it can cut off the tree trunks with different bending degrees, solve the problem that the tree trunks interfere with the construction, greatly improve the efficiency. Besides, it can prevent the cut off tree trunks from falling onto the slope to avoid damaging the slope, the broken and sagging tree trunk can be lifted up and cut to adapt to various situations, and the sediment falling on the guide rail can be automatically cleaned up at the same time. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a flow chart of the construction process of the soil nailing wall for geological disaster control of the disclosure; 
         FIG.  2    is a structural diagram of the construction equipment of soil nailing wall for geological disaster control according to the disclosure; 
         FIG.  3    is a partial structural diagram of construction equipment of soil nailing wall for geological disaster control of the disclosure; 
         FIG.  4    is a right side view of the construction equipment of soil nailing wall for geological disaster control according to the disclosure; 
         FIG.  5    is a structural diagram of the lifting assembly of the disclosure; 
         FIG.  6    is a structural diagram of the fixing assembly and the cutting assembly of the disclosure; 
         FIG.  7    is a structural diagram of the tilting assembly and the clamping assembly of the disclosure; 
         FIG.  8    is a structural diagram of the tilting assembly of the disclosure; 
         FIG.  9    is a structural diagram of the reinforcement assembly of the disclosure; 
         FIG.  10    is a structural diagram of an auxiliary assembly of the disclosure; 
         FIG.  11    is a partial structure diagram of the auxiliary assembly of the disclosure. 
     
    
    
     Number marks in the attached figures:  1 —underframe,  2 —handrails,  3 —wheels,  4 —first telescopic cylinder,  5 —support block,  201 —support frame,  202 —first guide rail,  203 —first electric slider,  204 —first linkage frame,  205 —second electric slider,  206 —second linkage frame,  301 —second guide rail,  302 —third electric slider,  303 —third linkage frame,  304 —fourth linkage frame,  305 —second telescopic cylinder,  306 —first linkage block,  307 —fifth linkage frame,  308 —first manipulator,  309 —second manipulator,  401 —third guide rail,  402 —fourth electric slider,  403 —electric saw,  501 —fourth guide rail,  502 —fifth electric slider,  503 —sixth linkage frame,  504 —first reel wheel,  505 —first rope,  506 —second linkage block,  507 —motor,  601 —seventh linkage frame,  602 —first clamp,  603 —third telescopic cylinder,  604 —second clamp,  605 —roller,  701 —limit block,  702 —rack,  703 —limit rod,  704 —transmission rod,  705 —straight gear,  706 —second reel wheel,  707 —second rope,  708 —linkage ring,  801 —electric rotation shaft,  802 —third linkage block,  803 —fifth guide rail,  804 —sixth electric slider,  805 —push frame,  806 —brush. 
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Now each Example in the present application is further described in combination with the drawings. 
     Embodiment 1 
     As shown in  FIG.  1   —FIG. 9 , a construction process of soil nailing wall for geological disaster control, which adopts a construction equipment of soil nailing wall for geological disaster control, including an underframe  1 , a handrail  2  and wheels  3 , a first telescopic cylinder  4  and a support block  5 , the construction equipment further comprises a lifting assembly, a fixing assembly, a cutting assembly, a tilting assembly, a clamping assembly and a reinforcement assembly. The right part of the upper side of the underframe  1  is fixedly connected with the handrail  2 , four wheels  3  are fixedly connected to the lower side of the underframe  1 , four first telescopic cylinders  4  are fixedly connected on the outer edge of the upper side of the underframe  1 , and the lower telescopic ends of the four first telescopic cylinders  4  are fixedly connected with the support block  5  respectively; the left part of the upper side of the underframe  1  is provided with the lifting assembly; the fixing assembly is arranged at the front of the upper side of the lifting assembly; the cutting assembly is arranged at the middle of the fixing assembly; the tilting assembly is arranged at the rear of the upper side of the lifting assembly; the lower part of the tilting assembly is provided with the clamping assembly; two reinforcement assemblies are arranged at the left part and the right part of the front side of the tilting assembly respectively; another two reinforcement assemblies are arranged at the left part and the right part of the rear side of the tilting assembly respectively; each of the four reinforcement assemblies is connected with the clamping assembly. 
     The construction process of soil nailing wall for geological disaster control includes the following steps: 
     S 1 : lifting, driving the fixed assembly and the cutting assembly to move to a side of the tree trunk extending out of the soil slope by the lifting assembly; 
     S 2 : clamping, clamping a root of the tree trunk extending out of the soil slope and a side far from the root by the fixing assembly; 
     S 3 : cutting, cutting the tree trunk along a middle of two clamping positions by the cutting assembly; 
     S 4 : conveying, conveying the cut tree trunk to the ground by fixing assembly; 
     S 5 : loading, manually placing a grouting rod in the clamping assembly, and fixing the grouting rod by the clamping assembly; 
     S 6 : transferring, transferring the grouting rod to a side of a soil slope hole; 
     S 7 : tilting, lifting an end of the grouting rod away from the soil slope hole upward; 
     S 8 : filling, filling the grouting rod into the soil slope hole. 
     The lifting assembly includes a support frame  201 , a first guide rail  202 , a first electric slider  203 , a first linkage frame  204 , a second electric slider  205  and a second linkage frame  206 . Two support frames  201  are fixedly connected to the front part of the upper side and the rear part of the upper side of the underframe  1  respectively. The upper side of the underframe  1  is fixedly connected with the first guide rail  202 , and the first guide rail  202  is located in the middle of the gap between the two support frames  201 . The two support frames  201  are fixedly connected with the first guide rail  202 , and the front part of the first guide rail  202  is slidably connected with the first electric slider  203 . The front side of the first electric slider  203  is fixedly connected with the first linkage frame  204 , and the rear part of the first guide rail  202  is slidably connected with the second electric slider  205 . The rear side of the second electric slider  205  is fixedly connected with the second linkage frame  206 . The lower side of the first linkage frame  204  is connected with the fixing assembly, and the lower side of the second linkage frame  206  is connected with the tilting assembly. 
     The fixing assembly includes a second guide rail  301 , a third electric slider  302 , a third linkage frame  303 , a fourth linkage frame  304 , a second telescopic cylinder  305 , a first linkage block  306 , a fifth linkage frame  307 , a first manipulator  308  and a second manipulator  309 . The lower side of the first linkage frame  204  is fixedly connected with the second guide rail  301 . The second guide rail  301  is slidably connected with the third electric slider  302 . The lower side of the third electric slider  302  is fixedly connected with the third linkage frame  303 . The front side of the third linkage frame  303  is fixedly connected with the fourth linkage frame  304 . The front side of the fourth linkage frame  304  is rotationally connected with the fifth linkage frame  307 . The middle of the upper side of the fourth linkage frame  304  is rotationally connected with the second telescopic cylinder  305 . The telescopic end of the second telescopic cylinder  305  is rotationally connected with the first linkage block  306 . The first linkage block  306  is rotationally connected with the fifth linkage frame  307 . The fifth linkage frame  307  is equipped with the first manipulator  308  on the left part of the front side through a torsion shaft. The fifth linkage frame  307  is equipped with the second manipulator  309  on the right part of the front side through the torsion shaft. The upper part of the front side of the fifth linkage frame  307  is connected with the cutting assembly. 
     The cutting assembly includes a third guide rail  401 , a fourth electric slider  402  and an electric saw  403 . The upper part of the front side of the fifth linkage frame  307  is fixedly connected with the third guide rail  401 , the third guide rail  401  is slidably connected with the fourth electric slider  402 , and the front side of the fourth electric slider  402  is provided with the electric saw  403 . 
     The tilting assembly includes a fourth guide rail  501 , a fifth electric slider  502 , a sixth linkage frame  503 , a first reel wheel  504 , a first rope  505 , a second linkage block  506  and a motor  507 . The lower side of the second linkage frame  206  is fixedly connected with the fourth guide rail  501 . The fourth guide rail  501  is slidably connected with the fifth electric slider  502 . The lower side of the fifth electric slider  502  is fixedly connected with the sixth linkage frame  503 . The left part and the right part of the sixth linkage frame  503  are rotationally connected with the first reel wheel  504  respectively. Two motors  507  are respectively arranged on the left part and the right part of the rear side of the sixth linkage frame  503 , and the output ends of the two motors  507  are respectively fixedly connected with the two first reel wheels  504 . The two first ropes  505  is wound on the two first reel wheels  504 , and the lower ends of the two first ropes ( 505 ) are suspended and connected with the second linkage block  506  respectively. The two second linkage blocks  506  are connected with the clamping assembly respectively. The sixth linkage frame  503  is connected with four groups of the reinforcement assemblies. 
     The clamping assembly includes a seventh linkage frame  601 , a first clamp  602 , a third telescopic cylinder  603 , a second clamp  604  and a roller  605 . The lower parts of the two second linkage blocks  506  are rotationally connected with the seventh linkage frame  601  respectively. The left part and the right part of the seventh linkage frame  601  are fixedly connected with one first clamp  602  respectively, and the upper sides of the two first clamps  602  are fixedly connected with two third telescopic cylinders  603  respectively. One second clamp  604  is fixedly connected to the lower telescopic end of each corresponding two third telescopic cylinders  603 . The inner sides of the two second clamps  604  are rotationally connected with a plurality of rollers  605 . The second clamp  604  located on the left side is connected with two reinforcement assemblies located on the left side, and the second clamp  604  located on the right side is connected with two reinforcement assemblies located on the right side. 
     The middle of the first clamp  602  is provided with an upper semicircular groove. 
     The middle of the second clamp  604  is provided with a lower semicircular groove, and the middle of the semicircular groove is provided with a plurality of small grooves. 
     The reinforcement assemblies at the front left side includes a limit block  701 , a rack  702 , a limit rod  703 , a transmission rod  704 , a straight gear  705 , a second reel wheel  706 , a second rope  707  and a linkage ring  708 . The front part of the left side of the sixth linkage frame  503  is fixedly connected with the limit block  701 , the left part of the limit block  701  is slidably connected with the rack  702 , the lower part of the rack  702  is fixedly connected with the limit rod  703 , and the lower part of the limit rod  703  is inserted with the seventh linkage frame  601 . The middle of the limit block  701  is rotationally connected with a transmission rod  704 . The left part of the transmission rod  704  is fixedly connected with the straight gear  705 , and the straight gear  705  engages with the rack  702 . The right part of the transmission rod  704  is fixedly connected with the second reel wheel  706 . The second reel wheel  706  is connected with the straight gear  701  through a torsion spring. The second reel wheel  706  is wound with the second rope  707 , the front side of the second clamp  604  on the left is fixedly connected with the linkage ring  708 , and the lower end of the second rope  707  is movably connected with the linkage ring  708 . 
     During preparation, the construction equipment of soil nailing wall for geological disaster treatment is moved to the side of the soil slope to be treated, and make the front and rear directions of the device parallel to the slope surface, wherein the left side of the device is close to the slope surface. The external power supply is connected, and then the external controller is operated to control the device to start operation. Then, the first electric slider  203  slides down on the first guide rail  202 , and the first electric slider  203  drives the first linkage frame  204  to move down, the first linkage frame  204  drives the fixing assembly and the cutting assembly to move downward, so that the first manipulator  308  and the second manipulator  309  are aligned with the height of the trunk extending out of the slope. Then the third electric slider  302  slides to the left on the second guide rail  301 , the third electric slider  302  drives the third linkage frame  303  to move to the left, and the third linkage frame  303  drives its associated parts to move to the left, so that the first manipulator  308  moves to the root of the trunk extending out of the soil slope. The first manipulator  308  and the second manipulator  309  automatically open, and then push the device forward to make the tree trunk located in the calipers of the first manipulator  308  and the second manipulator  309 . In addition, the second telescopic cylinder  305  performs telescopic movement to drive the first linkage block  306  to move, the first linkage block  306  drives the fifth linkage frame  307  to swing around the fourth linkage frame  304 , and the fifth linkage frame  307  drives its associated parts to move, such that the calipers of the first manipulator  308  and the second manipulator  309  can contact the tree trunk from all angles, and then the four first telescopic cylinders  4  drive the four support blocks  5  to move downward, so that the four support blocks  5  contact the ground and support the underframe  1 . And then, the first manipulator  308  and the second manipulator  309  clamp the tree trunk at the same time, because the tree trunk is not straight enough, the first manipulator  308  and the second manipulator  309  rotate a certain distance around the two torsion springs on the fifth linkage frame  307  and the electric saw  403  is started at this time. The fourth electric slider  402  moves downward on the third guide rail  401 , the fourth electric slider  402  drives the electric saw  403  to move downward, so that the electric saw  403  cuts off the trunk protruding from the soil slope, and then the fourth electric slider  402  drives the electric saw  403  to move upward to return to the original position. After that, the first manipulator  308  opens automatically, then the third electric slider  302  drives the third linkage frame  303  to move to the right, so that the second manipulator  309  drives the severed tree trunk to move to the right. Then the second manipulator  309  stops fixing the cut tree trunk, the cut tree trunk falls naturally to the ground, and then the tree trunk is manually removed to prevent the cut tree trunk from falling directly onto the soil slope. Then the four first telescopic cylinders  4  drive the four support blocks  5  to move up and back to their original positions respectively, so as to make the four wheels  3  touch the ground again, and then manually push the device forward for a certain distance, so that the first clamp  602  is aligned with the horizontal direction of the hole on the soil slope. And then the four first telescopic cylinders  4  drive the four support blocks  5  to move downward to support the underframe  1 , then the second electric slider  205  drives the second linkage frame  206  to move downward, and the second linkage frame  206  drives its associated parts to move downward, the first clamp  602  is aligned with the hole on the soil slope vertically, and then the grouting rod is manually placed in the middle of the two second clamps  604 . At the same time, the grouting rod is manually fixed, and then the four third telescopic cylinders  603  simultaneously perform telescopic movement, so that the two second clamps  604  fasten the grouting rod on the two first clamps  602 . At the same time, the second clamp  604  located on the left drives the linkage ring  708  to move upward, so as to stop stretching the second rope  707 , then the torsion spring on the limit block  701  drives the second reel wheel  706  to rotate. The second reel wheel  706  drives the transmission rod  704  to rotate, the transmission rod  704  drives the straight gear  705  to rotate, the second reel wheel  706  reels the second rope  707 . The straight gear  705  drives the rack  702  to move upward, the rack  702  drives the limit rod  703  to move upward, so that the limit rod  703  is separated from the seventh linkage frame  601  upward. Then the fifth electric slider  502  moves to the left on the fourth guide rail  501 , the fifth electric slider  502  drives the sixth linkage frame  503  to move to the left, and the sixth linkage frame  503  drives its associated parts to move to the left, so that two first clamps  602  and two second clamps  604  simultaneously transport the grouting rod to the soil slope hole. Starting the motor  507  on the right, and the motor  507  on the right drives the first reel  504  on the right to rotate, the first reel wheel  504  on the right side reels the first rope  505  on the right side, so that the first rope  505  on the back pulls the second linkage block  506  to move upward, so that the second linkage block  506  pulls the right side of the seventh linkage frame  601  to move upward, the seventh linkage frame  601  drives its associated parts to move, so that the right end of the grouting rod is tilted upward, and then the four third telescopic cylinders  603  extend, so as to make the two second clamps  604  move downward to stop clamping the grouting rod. At the same time, the second clamp  604  drives the linkage ring  708  to move downward, the linkage ring  708  pulls the second rope  707  to move, so that the second rope  707  drives the second reel wheel  706  to rotate, the second reel wheel  706  drives the transmission rod  704  to rotate, the transmission rod  704  drives the straight gear  705  to rotate, so that the straight gear  705  drives the rack  702  to move downward, and the rack  702  drives the limit rod  703  to move downward, such that the lower part of the limit rod  703  is inserted into the seventh linkage frame  601  to prevent the swing of the seventh linkage frame  601 . At this time, the grouting rod moves up and down on a plurality of rollers  605  under the action of gravity, so that the grouting rod slides into the hole in the soil slope. When in use, the tree truck extending out of the slope surface is automatically cut off, and then the grouting rod is installed in the hole in the soil slope. At the same time, the tree trunk with different bending degrees can be cut off, which solves the problem that the trunk interferes with the construction, greatly improves the efficiency, and prevents the cut trunk from falling onto the slope to avoid damaging the slope. 
     Embodiment 2 
     On the basis of the embodiment  1 , as shown in  FIG.  2    and  FIGS.  10 - 11   , the construction equipment further includes an auxiliary assembly. The lower part of the fixing assembly is installed with the auxiliary assembly, and the auxiliary assembly includes an electric rotation shaft  801 , a third linkage block  802 , a fifth guide rail  803 , a sixth electric slider  804 , a push frame  805 , and a brush  806 . The lower part of the front side of the third linkage frame  303  is equipped with the electric rotation shaft  801 . The movable end of the electric rotation shaft  801  is fixedly connected with a third linkage block  802 . The fifth guide rail  803  is fixedly connected to the lower side of the third linkage block  802 . The fifth guide rail  803  is slidably connected with the sixth electric slider  804 . The lower side of the sixth electric slider  804  is fixedly connected with the push frame  805 . Two brushes  806  are fixedly connected at the front part and the rear part of the push frame  805  respectively, and the upper parts of the two brushes  806  are in contact with the fifth guide rail  803 . 
     When the root of the tree trunk extending out of the slope breaks, the right part of the tree trunk fracture naturally sags. According to the tree trunk sagging position, the sixth electric slider  804  slides on the fifth guide rail  803 , and the fifth guide rail  803  drives the push frame  805  to move. Then the electric shaft  801  drives the third linkage block  802  to rotate. From the right side view, the third linkage block  802  moves clockwise, so that the push frame  805  moves below the trunk sagging part, then lift up the sagging part of the tree trunk. After that, the third linkage block  802  drives the push frame  805  to move towards the direction of the third linkage frame  303 , so that the push frame  805  conveys the sagging part of the tree trunk to the calipers of the second manipulator  309 , and the second manipulator  309  clamps the sagging part of the tree trunk. At the same time, the push frame  805  drives the two brushes  806  to move, so that the two brushes  806  clean up the sediment falling on the fifth guide rail  803  to avoid jamming. When in use, the broken and sagging trunk can be automatically lifted up to the designated position, and the broken and bent trunk can be cut off with the cutting assembly, and the sediment falling onto the guide rail can be automatically cleaned up.