Search

CN-117167551-B - Split type jacking device for long-distance pipe network construction and construction method

CN117167551BCN 117167551 BCN117167551 BCN 117167551BCN-117167551-B

Abstract

The application provides a split type jacking device for long-distance pipe network construction and a construction method, and relates to the field of pipeline construction. The hydraulic pushing mechanism comprises a push rod oil cylinder and a push disc, the push rod oil cylinder is arranged on the ground, the push disc is arranged in a working well, the connecting mechanism comprises a frame, the push disc is arranged at the lower part of the frame, the push rod oil cylinder pushes the upper part of the frame, and the push disc pushes or pulls out a drill rod to the inner wall of the working well. The machine frame is in a shape of a Chinese character kou, the side wall of the pushing disc is fixedly connected with the lower part of the machine frame, a pair of sliding rails are erected at the wellhead of the working well, a pair of sliding blocks are symmetrically arranged on the outer wall of the machine frame, the machine frame is erected on the sliding rails through the sliding blocks and slides on the sliding rails, and a pair of push rod oil cylinders respectively and simultaneously push and pull two vertical ends of the machine frame. The application has the effect of improving the rapid jacking of the drill rod and the construction speed.

Inventors

  • SUN YOUSONG
  • SUN HAIYAN
  • ZHANG WEI
  • ZHANG KE
  • Fan jiulong

Assignees

  • 南京华宇建设股份有限公司

Dates

Publication Date
20260505
Application Date
20230911

Claims (9)

  1. 1. The split type jacking device for the long-distance pipe network construction is characterized by comprising a hydraulic pushing mechanism and a connecting mechanism, wherein the hydraulic pushing mechanism comprises a push rod oil cylinder (1) and a push disc (2), the push rod oil cylinder (1) is arranged on the ground, the push disc (2) is arranged in a working well (3), the connecting mechanism comprises a frame (4), the push disc (2) is arranged at the lower part of the frame (4), the push rod oil cylinder (1) pushes the upper part of the frame (4), and the push disc (2) pushes or pulls out a drill rod (5) to the inner wall of the working well (3); The frame (4) is in a shape of a Chinese character kou, the side wall of the pushing disc (2) is fixedly connected with the lower part of the frame (4), a pair of sliding rails (31) are erected at the wellhead of the working well (3), a pair of sliding blocks (40) are symmetrically arranged on the outer wall of the frame (4), and the frame (4) is erected on the sliding rails (31) through the sliding blocks (40) and slides on the sliding rails (31); the pair of ejector rod oil cylinders (1) respectively push and pull the two vertical ends of the frame (4) at the same time.
  2. 2. The split jacking device for long-distance pipe network construction according to claim 1, wherein two support plates (32) are arranged between a pair of slide rails (31), and the two support plates (32) are respectively and correspondingly attached to a pair of inner walls of the working well (3) one by one; A pair of first sliding rods (33) are arranged between the two supporting plates (32), the pair of first sliding rods (33) respectively and correspondingly penetrate through two vertical ends of the frame (4), and the joint of the first sliding rods (33) and the frame (4) is located at the lower part of the frame (4).
  3. 3. The split jacking device for long-distance pipe network construction according to claim 1, wherein a pair of slide rails (31) are located above a wellhead of the working well (3) and close to an inner wall of the working well (3).
  4. 4. The split jacking device for long-distance pipe network construction according to claim 2, wherein a pair of supporting seats (6) are arranged on the ground, the pair of supporting seats (6) are respectively positioned at two sides of the working well (3), a pair of second sliding rods (60) are arranged between the pair of supporting seats (6) in a penetrating mode, the pair of second sliding rods (60) respectively penetrate through two vertical ends of the frame (4) in a one-to-one correspondence mode, and the joint position of the second sliding rods (60) and the frame (4) is positioned at the upper portion of the frame (4); the ejector rod oil cylinder (1) pushes the frame (4) to slide on the first slide rod (33), the second slide rod (60) and the slide rail (31).
  5. 5. The split jacking device for long-distance pipe network construction according to claim 4, wherein one end of the drill rod (5) close to the pushing disc (2) is provided with a connector (50), the connector (50) is H-shaped, and two adjacent drill rods (5) are respectively sleeved at two ends of the connector (50); The middle part of pushing away dish (2) is equipped with perforation (21), drilling rod (5) wear to establish in perforation (21), the one side of pushing away dish (2) towards drilling rod (5) is equipped with a plurality of clamp cylinder (22), a plurality of the push rod of clamp cylinder (22) all points to the axis of perforation (21) and all block and establish recess (500) department of connector (50).
  6. 6. The split jacking device for long-distance pipe network construction according to claim 5, wherein the drill rod (5) and the connector (50) are in interference fit or are connected through threads.
  7. 7. The split jacking device for long-distance pipe network construction according to any one of claims 1-6, further comprising a receiving well (7) on the ground, wherein a jacking pipe cylinder (71) is arranged in the receiving well (7), and the jacking pipe cylinder (71) pushes the prefabricated pipe (10) towards the working well (3).
  8. 8. The split jacking device for long-distance pipe network construction according to claim 7, wherein a back plate (72) is arranged between the jacking pipe cylinder (71) and the inner wall of the receiving well (7), the jacking pipe cylinder (71) is attached to the back plate (72), and the lower part of the back plate (72) is located below the bottom of the receiving well (7).
  9. 9. The construction method of the split type jacking device for the construction of the long-distance pipe network is characterized by comprising the following steps of: S1, excavating a working well (3) and a receiving well (7) on the ground, placing a sliding rail (31) at the wellhead of the working well (3), placing a second sliding rod (60) above the wellhead of the working well (3), and placing a first sliding rod (33) below the wellhead of the working well (3); s2, assembling the frame (4), and locking a push rod of the push rod oil cylinder (1) with the frame (4) through bolts; S3, a probe rod and a guide rod are arranged at one end of the first drill rod (5), a connector (50) is arranged at the other end of the first drill rod, the other end of the first drill rod (5) penetrates into a through hole (21) of the pushing disc (2), and a push rod of the clamping oil cylinder (22) stretches into a groove (500) of the connector (50); S4, the ejector rod oil cylinder (1) acts, the frame (4) and the pushing disc (2) are pushed, the first drill rod (5) is pushed into the soil layer, when the connector (50) of the first drill rod (5) is about to enter the soil layer, the ejector rod oil cylinder (1) stops acting, after the clamping oil cylinder (22) resets, the ejector rod oil cylinder (1) resets, one end of the second drill rod (5) is inserted into the connector (50) of the first drill rod (5), meanwhile, the connector (50) is arranged at the other end of the second drill rod (5), after the connector (50) of the second drill rod (5) is clamped by the clamping oil cylinder (22), the ejector rod oil cylinder (1) acts again, and the like, so as to form a hole with a small aperture; S5, after the first drill rod (5) completely enters the receiving well (7), the ejector rod oil cylinder (1) stops acting, the probe rod and the guide rod are removed, a conical reamer (8) and a pipe pulling head (9) are arranged at the end part of the first drill rod (5), and a prefabricated pipe (10) is sleeved outside the pipe pulling head (9); S6, resetting the ejector rod oil cylinder (1), and pulling all drill rods (5), the conical reamer (8), the pipe pulling head (9) and the first prefabricated pipe (10) to enter the hole and move towards the direction of the working well (3); S7, after the first preformed tube (10) completely enters the hole, the rest of the preformed tubes (10) are jacked into the hole through a jacking cylinder (71), and the drill rod (5) is sequentially removed in the working well (3) until the preformed tubes (10) are completely filled in the hole expanded by the conical reamer (8), and then the process is finished.

Description

Split type jacking device for long-distance pipe network construction and construction method Technical Field The application relates to the field of pipeline construction, in particular to a split type jacking device for long-distance pipe network construction, and further relates to a construction method of the split type jacking device for long-distance pipe network construction. Background The water supply and drainage pipeline construction in hydraulic engineering is currently generally carried out by adopting a non-excavation construction technology, so that the construction occupying the road can be avoided in an important construction section, and the traffic jam can not be caused. The traditional hydraulic pipe network construction usually adopts a miniature pipe jacking construction process adopting a soil pressure balance and mud water balance primary construction method. At present, the pipe jacking machine mainly comprises a rotary excavating system, a main top hydraulic propulsion system, a soil conveying system, a grouting system, measuring equipment, ground hoisting equipment, an electrical system and the like. In the forward tunneling process of the rotary excavator system, a main roof hydraulic propulsion system positioned in a working well can push a prefabricated pipeline into a tunneling channel, so that the pipeline is paved. However, when the power of the main top hydraulic propulsion system is lower and the working space provided by the working well for the main top hydraulic propulsion system is smaller during the super-long shallow-buried construction of the pipe jacking, the problems of lower effective jacking distance and low construction speed exist once. Disclosure of Invention In order to solve the problem that the construction speed is low because the drill rod cannot be quickly jacked in long distance due to small working space, the application provides a split jacking device for long-distance pipe network construction and a construction method. In a first aspect, the application provides a split jacking device for long-distance pipe network construction, which adopts the following technical scheme: The utility model provides a split type jacking device is used in construction of long distance pipe network, includes hydraulic pushing mechanism and coupling mechanism, hydraulic pushing mechanism includes ejector pin hydro-cylinder and pushing disc, the subaerial ejector pin hydro-cylinder is located, the pushing disc is located in the working well, coupling mechanism includes the frame, the pushing disc is located the lower part of frame, the ejector pin hydro-cylinder promotes the upper portion of frame, the pushing disc pushes in or pulls out the drilling rod to the inner wall department of working well. Through adopting above-mentioned technical scheme, remain the pushing disc in the working well, and the ejector pin hydro-cylinder is placed subaerial, and realize the push rod of ejector pin hydro-cylinder and the connection of pushing disc through the frame, like this, can place longer drilling rod in the limited working well in space, and place the ejector pin hydro-cylinder subaerial, thereby can adopt the great ejector pin hydro-cylinder of volume of big thrust to promote frame and pushing disc, and once only with a longer drilling rod jack-in to the soil layer in, effectively promoted the ejector pin hydro-cylinder to the driving efficiency of drilling rod, and leave bigger space for the installation of drilling rod, moreover, the steam generator is rational in infrastructure, can keep faster construction speed. Optionally, the frame is shaped like a Chinese character 'kou', the side wall of the pushing disc is fixedly connected with the lower part of the frame, a pair of sliding rails are erected at the wellhead of the working well, a pair of sliding blocks are symmetrically arranged on the outer wall of the frame, and the frame is erected on the sliding rails through the sliding blocks and slides on the sliding rails; the pair of ejector rod oil cylinders respectively and simultaneously push and pull the two vertical ends of the frame. Through adopting above-mentioned technical scheme, the cooperation of slide rail and slider has realized the frame fixed in vertical position to under the promotion of ejector pin hydro-cylinder, ensured that the frame can slide along the length direction of slide rail between a pair of slide rail, make the frame can steadily transmit the thrust that the ejector pin hydro-cylinder produced, ensure that the ejector pin hydro-cylinder can promote the pushing disc reliably, and then ensure that the ejector pin hydro-cylinder can jack-in the soil layer with the drilling rod. Optionally, two support plates are arranged between the pair of slide rails, and the two support plates are respectively and correspondingly attached to a pair of inner walls of the working well one by one; a pair of first sliding rods are arranged between the two sup