Construction device and method for rectifying deviation after rectangular top pipe penetrates through

Abstract

The application relates to the technical field of rectangular pipe construction, in particular to a construction device for rectifying deviation of a rectangular pipe after the pipe is penetrated, which comprises Larsen steel sheet piles, the Larsen steel piles are arranged on opposite sides of a pipe joint, a dewatering well is arranged outside the two steel sheet piles, a steel enclosing purlin is fixedly connected to one side of the Larsen steel sheet pile close to the pipe joint, steel supports are arranged between the steel enclosing purlins on the same horizontal plane, the two ends of the steel support are respectively connected to the steel enclosing purlins located at the two ends of the steel support, a bracket is welded below the steel enclosing purlin, a concrete limiting block is arranged at a lower chamfered corner of the pipe joint, a concrete cushion beam is arranged on the side of the pipe joint away from the concrete limiting block and close to the upper side, a second steel enclosing purlin is arranged between the concrete cushion beam and the pipe joint, a jack is arranged between the second steel enclosing purlin and the concrete cushion beam, and a steel sheet pad is arranged between the jack and the concrete cushion beam, so that the problem of pipe joint rotation correction after the rectangular pipe construction is completed in an underground pipe joint project is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of rectangular pipe construction, in particular to a construction device and method for rectifying a rectangular pipe after pipe penetration. BACKGROUND

[0002] With the further improvement of city planning, the superiority of many underground projects is more and more obvious. First, it can better release the space on the ground, and it is also remarkable in beautifying city construction. For city underground pipe engineering, the development momentum is rapid, and it is gradually favored by the public. When it needs to pass under a river, railway, highway and other structures, the pipe jacking method is used for construction. For the rectangular pipe, the axis and elevation control are important, but the rectangular pipe has one more control index than the circular pipe: pipe segment rotation. Because the contact area of the rectangular pipe with the soil layer is large during pipe jacking, the pipe segment is prone to rotate during pipe jacking. At this time, the rectification during pipe jacking will be carried out. If special stratum or improper operation is encountered during the process, the rotation angle will continue to increase, which will lead to the failure to adjust the elevation of the pipe. In order to ensure normal exit, only continuous pipe jacking can be carried out. SUMMARY

[0003] In order to solve the problem of pipe segment rotation rectification after the completion of the construction of the rectangular pipe in the underground pipe segment project, the application provides a construction device and method for rectifying the rectangular pipe after pipe penetration.

[0004] The above technical purpose of the application is realized by the following technical scheme:

[0005] On the one hand, a construction device for rectifying a rectangular pipe after pipe penetration comprises a Larsen steel sheet pile, the Larsen steel pile is arranged on opposite sides of a pipe segment, and a dewatering well is arranged outside the two steel sheet piles. A steel surround purlin is fixedly connected to the side of the Larsen steel sheet pile close to the pipe segment, and a steel support is arranged between the steel surround purlins on the same horizontal plane. The two ends of the steel support are respectively connected to the steel surround purlins at the two ends of the steel support. A corbel is welded below the steel surround purlin. A concrete limiting block is arranged below the chamfer of the pipe segment. A concrete cushion beam is arranged on the side of the pipe segment away from the concrete limiting block and close to the upper side. A second steel surround purlin is arranged between the concrete cushion beam and the pipe segment. A jack is arranged between the second steel surround purlin and the concrete cushion beam. A steel plate pad is arranged between the jack and the concrete cushion beam.

[0006] By adopting the above scheme, when the rectangular top pipe needs to be corrected, the jack is used to lift the rectangular top pipe, and because the concrete limiting block is arranged at the lower chamfer of the side of the pipe section away from the jack, the pipe section will rotate with the position of the concrete limiting block as the axis, so that the pipe section is turned right, the Larson steel sheet piles are arranged on both sides of the pipe section to separate the pipe section and the soil layer, the steel support provides support for the Larson steel sheet piles on both sides, the steel encloses the purlin to provide a stress point for the steel support, and the corbel increases the bearing capacity of the steel encloses the purlin, so that the operator can conveniently clean and excavate the earth above the pipe section, so as to pour the concrete block and place the jack; the setting of the dewatering well can reduce the underground water level and improve the soil strength, the concrete cushion beam provides support for the jack, and the setting of the steel plate cushion block adjusts the stroke and correction angle of the jack.

[0007] Optionally, the dewatering well is provided with a plurality of dewatering wells.

[0008] By adopting the above scheme, the dewatering capacity is improved, the soil strength is improved, and the excavation of the earth is more safe.

[0009] Optionally, the distance between the Larson steel sheet pile on one side of the pipe section provided with the concrete limiting block and the pipe section is 2m, and the distance between the Larson steel sheet pile on one side of the pipe section provided with the concrete cushion beam and the pipe section is 1.735m.

[0010] Optionally, a vertical rod is arranged above the concrete limiting block, one end of the vertical rod away from the concrete limiting block is connected with a horizontal plate, and the horizontal plate is located directly above the pipe section; when the pipe section is corrected, the horizontal plate is parallel to the upper surface of the pipe section.

[0011] By adopting the above scheme, the horizontal plate is in contact with the upper surface of the pipe section, which can effectively prevent the pipe section from rotating, thereby avoiding the pipe section from deviating again after the correction is completed, and limiting the pipe section.

[0012] Optionally, the upper surface of the vertical rod is provided with a spring slot, a threaded slot is formed at the bottom of the spring slot, and the diameter of the threaded slot is smaller than that of the spring slot; the cross plate is slidingly connected with a shaft rod, the cross plate is sleeved on the upper position of the shaft rod, a screw thread is formed at the lower position of the shaft rod, the shaft rod is screw-connected in the threaded slot, a limiting ring is rotationally connected at the position close to the screw thread of the shaft rod, a main spring is fixedly connected between the limiting ring and the cross plate, and the two ends of the main spring are connected with the limiting ring and the cross plate respectively; a transmission cavity is formed in the ring wall of the vertical rod, a jacking rod is slidingly connected in the transmission cavity, the jacking rod is located at the bottom of the spring slot, and a gear tooth is formed on the surface of the jacking rod; a gear is rotationally connected in the transmission cavity, a lock rod is arranged on the side of the gear away from the jacking rod, the lock rod is slidingly connected in the transmission cavity, and one end of the lock rod penetrates through the upper end of the vertical rod and is provided with a clamping hole; a clamping hole is formed at the position opposite to the clamping slot of the cross plate, a pin slot is formed on the inner side surface of the clamping hole, a clamping pin is slidingly connected in the pin slot, a clamping spring is fixedly connected at the end of the clamping pin close to the bottom of the pin slot, a plurality of lock holes are formed on the lower surface of the cross plate close to the vertical rod, the lock holes are communicated with the pin slot, a lock pin is slidingly connected in the lock hole, a first lock slot is formed at the end of the clamping pin away from the vertical rod, and a second lock slot is formed on the side surface of the lock pin.

[0013] By adopting the above scheme, before correction, the vertical rod is fixedly connected with the concrete limiting block, the cross plate is located on the upper surface of the pipe joint, then the operator rotates the shaft rod to move the shaft rod downward, thereby driving the main spring to be tensioned and the cross plate to be pressed on the upper surface of the pipe joint, until the limiting ring reaches the bottom of the spring slot, the limiting ring presses the jacking rod downward, thereby driving the gear to rotate, so that the lock rod penetrates through the clamping hole on the upper surface of the vertical rod, and the lock pin at the contact position of the cross plate and the pipe joint is pressed into the lock hole, at this time, the first lock slot is opposite to the second lock slot, after the pipe joint is corrected, the lock pins on the cross plate are all pressed into the lock hole, all the first lock slots are opposite to the second lock slots, the clamping spring rebounds to drive the clamping pin to move to the clamping hole, at this time, the clamping hole is opposite to the pin slot, so that the clamping pin penetrates into the clamping hole, the cross plate is fixed with the vertical plate, thereby preventing the pipe joint from continuing to rotate, avoiding that the joint is excessively corrected to cause the joint to be deflected again, and enabling the operator to confirm whether the pipe joint is corrected.

[0014] Optionally, a sliding hole is formed in the side wall of the pin slot, the sliding hole is communicated with the upper surface of the cross plate, and a sliding rod is slidingly connected in the sliding hole and fixedly connected with the clamping pin.

[0015] By adopting the above scheme, after the correction is completed, the operator can drive the clamping pin to move by sliding the sliding rod, so that the clamping pin penetrates out of the clamping hole, then the operator rotates the shaft rod to retract the lock rod into the transmission cavity, thereby separating the cross plate and the pipe joint, and locking the clamping pin by the lock rod again for next use.

[0016] Optionally, the lock rod is fixedly connected with a lock rod limiting block at one end away from the clamping groove, and a lock rod limiting groove is communicated below the transmission cavity, the lock rod limiting block is slidably connected in the lock rod limiting groove, and the diameter of the lock rod limiting groove is greater than the diameter of the transmission cavity.

[0017] By the above scheme, when the limiting ring presses the ejector rod into the transmission cavity, the lock rod limiting block moves to the edge of the lock rod limiting groove, so that the lock rod limiting block is limited to continue to move, the pulling force that the lock rod can bear is further improved, and the force that the horizontal plate can bear is increased, so that the pipe section is further prevented from being excessively corrected.

[0018] Optionally, the shaft rod is fixedly connected with a knob at the upper end.

[0019] By the above technical scheme, the operator can more easily rotate the knob to rotate the shaft rod.

[0020] In another aspect, the application provides a construction method for correcting a rectangular top pipe after the pipe is penetrated, comprising the following steps:

[0021] S1, the ground is cleaned according to the pipe section correction treatment mileage range until the uniform soil layer with a certain bearing capacity is exposed, and then the soil layer is unloaded according to the 1:1 proportioned slope;

[0022] S2, the Larson steel sheet piles are punched into the two sides of the pipe joint, and the depth of the Larson steel sheet piles exceeds the bottom surface elevation of the pipe section by 3.75m;

[0023] S3, the dewatering wells are arranged between the outer sides of the Larson steel sheet piles on the two sides and the slope foot in the axial direction of the correction pipe section, and the water quantity of the dewatering wells can be increased according to the actual situation;

[0024] S4, after the Larson steel sheet piles are applied and the water level of the dewatering wells is lowered to at least 0.5m below the pipe bottom, the soil is excavated layer by layer and the bracket, the steel enclosing purlin and the steel support are welded and erected in time, finally the soil above the pipe section is completely excavated, then the left side of the pipe section is excavated to the pipe section bottom, and the right side is excavated to 95cm below the top plate of the pipe section;

[0025] S5, the concrete limiting block with a height of 60cm and a width of 200cm is constructed at the chamfered position below the left side of the pipe section; the cushion layer with a width of 110.4cm and a thickness of 5cm is constructed on the right side of the pipe section, and the concrete cushion beam with a height of 70cm and a width of 76cm is poured on the cushion layer close to the Larson steel sheet pile;

[0026] S6, the second steel enclosing purlin is installed at the top corner position of the rotating side of the pipe section, the square wood is placed below the second steel enclosing purlin, one 50-ton jack is installed for each pipe section, and the steel plate pad block is added between the jack and the concrete cushion beam in time according to the correction condition to facilitate the adjustment of the stroke of the jack and the correction angle;

[0027] S7, the whole jack hydraulic system is controlled by using PLC operating system, the pipe section to be processed is gradually pressurized and pushed in the operation room as a whole, and the torsion condition and the elevation condition of the pipe section are judged through the monitoring system, the pipe section is gradually twisted until it is twisted to the deviation range allowed by the specification under the condition of ensuring the safety of the pipe section structure;

[0028] S8, after the deviation is corrected, the wall behind the pipe section is injected with double liquid grouting, the grouting is carried out through the thixotropic mud hole, the soil compaction grouting effect is achieved, and the external waterproof of the pipe section is strengthened;

[0029] S9, after the grouting is completed and the strength is reached, the pushing system is removed, the soil is backfilled layer by layer and compacted, the support and the Larsen steel sheet pile are removed, and the dewatering well is plugged.

[0030] Optionally, in step S6, cement slurry is filled between the pipe section and the second steel enclosing purlin after the second steel enclosing purlin is installed.

[0031] Through the above technical scheme, the pipe section is gradually rotated and belongs to a curve, and the second steel enclosing purlin is a straight line, and there is a gap between the two, so cement slurry needs to be filled between the pipe section and the second steel enclosing purlin, so that uniform stress and overall stress can be ensured.

[0032] In summary, the present application has the following technical effects:

[0033] 1. The concrete limiting block is arranged at the chamfer below one side of the pipe section, the concrete cushion beam is arranged on the side of the pipe section away from the concrete limiting block and close to the upper side, the second steel enclosing purlin is arranged between the concrete cushion beam and the pipe section, and the jack is arranged between the second steel enclosing purlin and the concrete cushion beam, so that the jack can rotate the pipe section around the concrete limiting block, thereby realizing the deviation correction of the pipe section;

[0034] 2. The vertical rod and the horizontal plate are arranged to prevent the pipe section from being inclined again due to too large rotation angle;

[0035] 3. The shaft and the limiting ring are arranged to make the installation and removal of the horizontal plate and the vertical rod more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is the overall structure sectional view of the present application;

[0037] Figure 2 is Figure 1 is the partial structure enlarged view of A in FIG. 1;

[0038] Figure 3 is the partial structure sectional view of the internal structure of the vertical rod of the present application;

[0039] Figure 4is the partial structure sectional view of the application intended to emphasize the structure in the transmission cavity;

[0040] Figure 5 is the partial structure sectional view of the application intended to emphasize the structure at the clamping hole;

[0041] Figure 6 is the partial structure sectional view of the application intended to emphasize the structure at the locking pin;

[0042] Figure 7 is the partial structure exploded view of the application intended to emphasize the connection relationship between the locking pin and the clamping pin.

[0043] In the figure, 1 is a Larsen steel sheet pile; 2 is a dewatering well; 3 is a steel enclosing purlin; 31 is a corbel; 4 is a steel support; 5 is a concrete limiting block; 6 is a concrete cushion beam; 61 is a cushion layer; 7 is a jack; 71 is a steel plate cushion block; 72 is a second steel enclosing purlin; 721 is a square wood; 8 is a vertical rod; 81 is a spring groove; 82 is a threaded groove; 83 is a shaft; 831 is a limiting ring; knob; 84 is a main spring; 85 is a transmission cavity; 851 is a top rod; 852 is a gear; 853 is a locking rod; 8531 is a clamping hole; 86 is a locking rod limiting block; 87 is a locking rod limiting groove; 871 is a limiting spring; 9 is a cross plate; 91 is a clamping hole; 92 is a pin groove; 93 is a clamping pin; 931 is a first locking groove; 94 is a clamping spring; 95 is a locking hole; 96 is a locking pin; 961 is a second locking groove; 962 is a pin spring; 97 is a sliding hole; 98 is a sliding rod; 10 is a pipe section. DETAILED DESCRIPTION

[0044] The application will be further described in detail below in combination with the drawings.

[0045] Referring to Figure 1 and Figure 2 , a construction device for rectifying a rectangular top pipe after penetrating, comprising a concrete limiting block 5, the concrete limiting block 5 is located at the lower position of the side surface of the pipe section 10, a concrete cushion beam 6 is arranged at the upper position of the surface on the side of the pipe section 10 away from the concrete limiting block 5, a jack 7 is arranged above the concrete cushion beam 6, and the jack 7 is placed on the pipe section 10 at the position close to the upper side on the side of the pipe section 10 away from the concrete limiting block 5. When rectifying the rectangular top pipe, the operator can use the jack 7 to lift the pipe section 10, and because the concrete limiting block 5 is arranged at the lower position on the side of the pipe section 10 away from the jack 7, after the jack 7 pushes the pipe section 10, the pipe section 10 will rotate, thereby rectifying the pipe section 10.

[0046] Referring to Figure 1 and Figure 2Larsen steel sheet pile 1 is arranged at the left side of the pipe section 10 at a position of 2 m and at the right side of the pipe section 10 at a position of 1.735 m, and the lowest position of the Larsen steel sheet pile 1 is lower than the bottom surface of the pipe section 10 by at least 3.75 m, so as to separate the pipe section 10 from the soil layer outside the Larsen steel sheet pile 1, and facilitate the construction of the operator. A dewatering well 2 is arranged outside the Larsen steel sheet pile 1, and the number of the dewatering well 2 is not fixed, and the number of the dewatering well 2 can be appropriately increased or reduced according to the dewatering requirement. The depth of the dewatering well 2 is 0.5 m deeper than the bottom surface of the pipe section 10. The dewatering well 2 improves the dewatering capacity and the strength of the soil, so that the excavation of the earthwork is safer. Steel enclosing purlins 3 are welded to the sides of the two Larsen steel sheet piles 1 close to each other. The steel enclosing purlins 3 are in the same direction as the pipe section 10, and corbels 31 are arranged below the steel enclosing purlins 3. The corbels 31 increase the fixing strength of the steel enclosing purlins 3 and the Larsen steel sheet pile 1, and increase the bearing capacity of the steel enclosing purlins 3. Steel supports 4 are arranged between the two steel enclosing purlins 3, and the two ends of the steel support 4 are fixedly connected with the steel enclosing purlins 3 at the two ends. The steel support 4, the steel enclosing purlin 3 and the corbel 31 support the Larsen steel sheet pile 1, so that the operator excavates the earthwork between the two Larsen steel sheet piles 1, ensures the safety of the operator, and places the jack 7.

[0047] With reference to Figure 1 and Figure 2 A concrete limiting block 5 is arranged at the lower chamfer of the left side of the pipe section 10. The concrete limiting block 5 is 60 cm high and 200 cm wide. A formwork is arranged between the pipe wall of the pipe section 10 and the concrete limiting block 5, and a wooden wedge-shaped block is arranged between the formwork and the pipe wall. A concrete cushion beam 6 is arranged on the cushion layer 61 at a position 95 cm below the top plate of the right side of the pipe section 10. The concrete cushion beam 6 is arranged above the cushion layer 61 and close to the Larsen steel sheet pile 1. The concrete cushion beam 6 is 70 cm high and 76 cm wide.

[0048] With reference to Figure 1 and Figure 2 A second steel enclosing purlin 72 is arranged opposite to the concrete cushion beam 6 of the pipe section 10. Since the pipe section 10 is gradually rotated, the contact surface between the pipe section 10 and the second steel enclosing purlin 72 is a curved surface. Therefore, cement slurry can be filled between the pipe section 10 and the second steel enclosing purlin 72 to make the force of the pipe section 10 uniform. A square timber 721 is arranged below the second steel enclosing purlin 72. The jack 7 is arranged between the concrete cushion beam 6 of the second steel enclosing purlin 72. Each pipe section 10 corresponds to one jack 7. Rubber pads are arranged between the jack 7 and the second steel enclosing purlin 72. The specification of the rubber pad is 40*40*5 cm. The rubber pad makes the force of the second steel enclosing purlin 72 more uniform. Steel plate pads 71 are arranged between the jack 7 and the concrete cushion beam 6. The specification of the steel plate pad 71 is 25*25*5 cm. The number of the steel plate pad 71 can be changed according to the correction condition, so as to adjust the stroke of the jack 7 and the correction angle. The hydraulic system of the jack 7 is connected with the PLC operation system.

[0049] With reference to Figure 1 and Figure 3 The vertical rod 8 is provided above the concrete limiting block 5, and the end of the vertical rod 8 away from the concrete limiting block 5 is connected with the horizontal plate 9, the horizontal plate 9 is located directly above the pipe joint 10, and the horizontal plate 9 is parallel to the upper surface of the pipe joint 10 after the pipe joint 10 is corrected. The spring groove 81 is formed in the upper surface of the vertical rod 8, the threaded groove 82 is formed in the bottom of the spring groove 81, and the diameter of the threaded groove 82 is smaller than that of the spring groove 81. The shaft rod 83 is slidingly connected with the horizontal plate 9, the horizontal plate 9 is sleeved on the upper position of the shaft rod 83, the threaded groove is formed in the lower position of the shaft rod 83, the shaft rod 83 is screw-connected in the threaded groove 82, the limiting ring 831 is rotationally connected at the position of the threaded groove of the shaft rod 83, the main spring 84 is fixedly connected between the limiting ring 831 and the horizontal plate 9, and the two ends of the main spring 84 are connected with the limiting ring 831 and the horizontal plate 9 respectively.

[0050] With reference to Figure 3 and Figure 4 The transmission cavity 85 is formed in the ring wall of the vertical rod 8, the top rod 851 is slidingly connected in the transmission cavity 85, the top rod 851 is located at the groove bottom of the spring groove 81, and the surface of the top rod 851 is provided with a gear tooth. The gear wheel 852 is rotationally connected in the transmission cavity 85, the top rod 851 is engaged with the gear wheel 852, the lock rod 853 is engaged with the side of the gear wheel 852 away from the top rod 851, and the lock rod 853 is slidingly connected in the transmission cavity 85.

[0051] With reference to Figure 5 、 Figure 6 and Figure 7 The end of the lock rod 853 penetrates out of the upper end of the vertical rod 8, the clamping hole 8531 is formed in the end of the lock rod 853, the clamping hole 91 is formed in the position of the horizontal plate 9 opposite to the clamping groove, the pin groove 92 is formed in the inner side surface of the clamping hole 91, the clamping pin 93 is slidingly connected in the pin groove 92, the clamping spring 94 is fixedly connected at the end of the clamping pin 93 close to the groove bottom of the pin groove 92, the plurality of lock holes 95 are formed in the lower surface of the horizontal plate 9 close to the vertical rod 8, the plurality of lock holes 95 are communicated with the pin groove 92, the lock pin 96 is slidingly connected in the lock hole 95, the pin spring 962 is arranged in the lock hole 95, and the two ends of the pin spring 962 are fixedly connected with the lock hole 95 and the lock pin 96 respectively. The first lock groove 931 is formed in the end of the clamping pin 93 away from the vertical rod 8, the second lock groove 961 is formed in the side surface of the lock pin 96, and the lock pin 96 is slidingly connected in the first lock groove 931.

[0052] With reference to Figure 1 and Figure 3Before correction, the vertical rod 8 can be fixedly connected to the concrete limiting block 5, so that the horizontal plate 9 is located on the upper surface of the pipe section 10. Then the operator can rotate the shaft 83 to move the shaft 83 downward, thereby driving the main spring 84 to tighten, so that the horizontal plate 9 is pressed against the upper surface of the pipe section 10 until the limiting ring 831 reaches the bottom of the spring groove 81, so that the limiting ring 831 presses the top rod 851 downward, thereby driving the gear 852 to rotate, so that the locking rod 853 passes through the upper surface of the vertical rod 8 and passes through the snap-fit ​​hole 91.

[0053] Reference Figure 4 - Figure 7 The locking pin 96 at the contact point between the horizontal plate 9 and the pipe section 10 is pressed into the locking hole 95. At this time, the first locking groove 931 is aligned with the second locking groove 961. After the pipe section 10 is corrected, all the locking pins 96 on the horizontal plate 9 are pressed into the locking hole 95, and all the first locking grooves 931 are aligned with the second locking groove 961. The snap spring 94 rebounds, driving the snap pin 93 to move towards the snap hole 91. At this time, the snap hole 8531 is aligned with the pin groove 92, so that the snap pin 93 passes into the snap hole 8531, fixing the horizontal plate 9 and the vertical plate, thereby preventing the pipe section 10 from continuing to rotate, avoiding excessive correction of the pipe section 10 and causing the pipe section 10 to deflect again, and allowing the operator to confirm whether the correction of the pipe section 10 is complete.

[0054] Reference Figure 3 A sliding hole 97 is provided on the side wall of the pin groove 92. The sliding hole 97 is connected to the upper surface of the horizontal plate 9, and a sliding rod 98 is slidably connected in the sliding hole 97. The sliding rod 98 is fixedly connected to the locking pin 93. After the correction is completed, the operator can move the locking pin 93 by sliding the sliding rod 98, so that the locking pin 93 passes through the locking hole 8531. Then the operator rotates the shaft 83, so that the locking rod 853 retracts into the transmission cavity 85, thereby separating the horizontal plate 9 and the pipe section 10, and locking the locking pin 93 again with the locking rod 853 for the next use.

[0055] Reference Figure 3 and Figure 4 A locking rod 853 is fixedly connected to a locking rod limiting block 86 at one end away from the locking hole 91. A locking rod limiting groove 87 is connected below the transmission cavity 85. The locking rod limiting block 86 is slidably connected in the locking rod limiting groove 87. The diameter of the locking rod limiting groove 87 is larger than the diameter of the transmission cavity 85. A limit spring 871 is provided in the locking rod limiting groove 87.

[0056] Reference Figure 3 and Figure 4 When the limiting ring 831 presses the push rod 851 into the transmission cavity 85, the locking rod limiting block 86 moves to the edge of the locking rod limiting groove 87. At this time, the limiting spring 871 is in a stretched state, thereby limiting the locking rod limiting block 86 from continuing to move, further increasing the tension that the locking rod 853 can withstand, and thus increasing the force that the horizontal plate 9 can withstand, thereby further ensuring that the pipe section 10 will not be over-corrected.

[0057] The application also provides a construction method for rectifying deviation after a rectangular top pipe penetrates through.

[0058] S1, clean the ground according to the rectification treatment mileage range of the pipe joint 10, until the soil layer with uniform bearing capacity is exposed, and then unload part of the soil layer according to the 1:1 proportion slope;

[0059] S2, drive the Larsen steel sheet pile 1 on both sides of the pipe joint, and the depth of the Larsen steel sheet pile 1 exceeds the bottom elevation of the pipe joint 10 by 3.75 m;

[0060] S3, along the axis direction of the rectification pipe joint 10, arrange the dewatering well 2 between the outer side of the Larsen steel sheet pile 1 on both sides and the slope foot, and the water quantity of the dewatering well 2 can be increased according to the actual situation;

[0061] S4, after the Larsen steel sheet pile 1 is applied and the water level of the dewatering well 2 is lowered to at least 0.5 m below the pipe bottom, excavate the earthwork layer by layer and timely weld the bracket 31, erect the steel enclosing purlin and the steel support 4, finally, excavate all the earthwork above the pipe joint 10, then excavate to the pipe joint 10 bottom on the left side of the pipe joint 10 and excavate to 95 cm below the top plate of the pipe joint 10 on the right side;

[0062] S5, construct the concrete limiting block 5 at the chamfered position below the left side of the pipe joint 10 (a formwork is arranged between the pipe wall and the limiting ring 831, and a wooden wedge-shaped block is used between the formwork and the pipe wall to ensure the separation space); construct the 5 cm thick cushion layer 61 with a width of 110.4 cm on the right side of the pipe joint 10, and pour the concrete cushion beam 6 with a height of 70 cm and a width of 76 cm on the cushion layer 61 close to the Larsen steel sheet pile 1;

[0063] S6, fix and install the vertical rod 8 above the concrete limiting block 5, and abut the horizontal rod on the pipe joint 10, then rotate the knob, so that the limiting ring 831 reaches the bottom of the spring groove 81.

[0064] S7, install the second steel enclosing purlin 72 at the top corner position of the rotating side of the pipe joint 10, fill the cement slurry between the pipe joint 10 and the second steel enclosing purlin 72, and place the square wood 721 below the second steel enclosing purlin 72, install one 50-ton jack 7 for each pipe joint 10, and add the steel plate pad 71 between the jack 7 and the concrete cushion beam 6 in time according to the rectification condition each time, so as to facilitate the adjustment of the stroke of the jack 7 and the rectification angle;

[0065] S8, use the PLC operating system to control the entire hydraulic system of the jack 7, gradually pressurize and push the pipe joint 10 to be treated in the operation room, and judge the torsion condition of the pipe joint 10 and the elevation condition of the pipe joint 10 through the monitoring system, gradually twist the pipe joint 10 under the condition of ensuring the safety of the structure of the pipe joint 10, until the pipe joint 10 is twisted to the deviation range allowed by the specification;

[0066] S9, after the deviation is corrected in place, the wall behind the double liquid grouting is carried out from the pipe section 10, the grouting is adopted the thixotropic mud hole, the soil body compaction grouting effect is played at the same time, and the outer waterproof of the pipe section 10 is strengthened;

[0067] S10, after the grouting is completed and reaches the strength, the slide rod 98 is pulled to make the clamping rod slide out in the clamping hole 8531, the shaft rod 83 is made to move upward at any time by rotating the shaft rod 83, the lock rod 853 is made to return to the transmission cavity 85, the jacking system is removed, the earthwork is backfilled layer by layer and compacted, and the support and the Larsen steel sheet pile 1 are removed, and the dewatering well 2 is plugged.

[0068] The specific embodiment is only an explanation of the application, and is not a limitation of the application, and the person skilled in the art can make a modification of the embodiment without a creative contribution according to the need after reading the specification, but as long as the application is within the scope of the claims, it is protected by the patent law.

Claims

1. A construction device for rectifying a deviation of a rectangular jacking pipe after penetrating, characterized in that: The utility model relates to a kind of pipe jacking method and device, including Larsen steel sheet pile (1), Larsen steel sheet pile (1) is arranged in the opposite sides of pipe section (10), and water well (2) is arranged outside two sides Larsen steel sheet pile (1), steel encasing purlin (3) is fixedly connected with Larsen steel sheet pile (1) side close to pipe section (10) on the side of Larsen steel sheet pile (1), and steel support (4) is arranged between the steel encasing purlin (3) of same horizontal plane, the both ends of steel support (4) are respectively connected with the steel encasing purlin (3) located in the both ends of steel support (4), and haunch (31) is welded below steel encasing purlin (3), concrete limiting block (5) is arranged in the chamfered place below pipe section (10) side, concrete cushion beam (6) is arranged in pipe section (10) side close to upper side away from concrete limiting block (5), second steel encasing purlin (72) is arranged between concrete cushion beam (6) and pipe section (10), jack (7) is arranged between second steel encasing purlin (72) and concrete cushion beam (6), steel sheet pad (71) is arranged between jack (7) and concrete cushion beam (6); Concrete limiting block (5) is provided with vertical rod (8) above, one end of vertical rod (8) is connected with horizontal plate (9) away from concrete limiting block (5), horizontal plate (9) is located directly above pipe section (10), when pipe section (10) is rectified, horizontal plate (9) is parallel with the upper surface of pipe section (10) The upper surface of the vertical rod (8) is provided with a spring groove (81), a threaded groove (82) is formed at the bottom of the spring groove (81), and the diameter of the threaded groove (82) is smaller than that of the spring groove (81), the cross plate (9) is slidingly connected with a shaft rod (83), the cross plate (9) is sleeved on the upper position of the shaft rod (83), a thread is formed at the lower position of the shaft rod (83), the shaft rod (83) is threadedly connected in the threaded groove (82), a limiting ring (831) is rotatably connected at the position close to the thread of the shaft rod (83), a main spring (84) is fixedly connected between the limiting ring (831) and the cross plate (9), the two ends of the main spring (84) are respectively connected with the limiting ring (831) and the cross plate (9), a transmission cavity (85) is formed in the ring wall of the vertical rod (8), a top rod (851) is slidingly connected in the transmission cavity (85), the top rod (851) is located at the groove bottom of the spring groove (81), and the surface of the top rod (851) is provided with a gear tooth, a gear (852) is rotatably connected in the transmission cavity (85), the gear (852) is engaged with the top rod (851), a lock rod (853) is engaged with the side, away from the top rod (851), of the gear (852), the lock rod (853) is slidingly connected in the transmission cavity (85), one end of the lock rod (853) penetrates through the upper end of the vertical rod (8), and a clamping hole (8531) is formed at the end of the lock rod (853), a clamping hole (91) is formed at the position opposite to the clamping groove of the cross plate (9), a pin groove (92) is formed on the inner side surface of the clamping hole (91), a clamping pin (93) is slidingly connected in the pin groove (92), a clamping spring (94) is fixedly connected at the end of the clamping pin (93) close to the groove bottom of the pin groove (92), a plurality of lock holes (95) are formed on the lower surface of the cross plate (9) and close to the side of the vertical rod (8), the plurality of lock holes (95) are communicated with the pin groove (92), a lock pin (96) is slidingly connected in the lock hole (95), a first lock groove (931) is formed at the end of the clamping pin (93) away from the vertical rod (8), a second lock groove (961) is formed on the side surface of the lock pin (96), and the lock pin (96) is slidingly connected in the first lock groove (931).

2. The construction device for rectifying the deviation of the rectangular pipe after penetrating according to claim 1, characterized in that: The precipitation well (2) is provided with a plurality of.

3. The construction device for rectifying the deviation of the rectangular pipe after penetrating according to claim 1, characterized in that: The distance between the Larsen steel sheet pile (1) located on one side of the pipe joint (10) provided with the concrete limiting block (5) and the pipe joint (10) is 2m, and the distance between the Larsen steel sheet pile (1) located on one side of the pipe joint (10) provided with the concrete cushion beam (6) and the pipe joint (10) is 1.735m.

4. The construction device for rectifying the deviation of the rectangular pipe after penetrating according to claim 1, characterized in that: The side wall of the pin groove (92) is provided with a sliding hole (97) communicated with the upper surface of the cross plate (9), and a sliding rod (98) is slidingly connected in the sliding hole (97).

5. The construction device for rectifying the deviation of the rectangular pipe after penetrating according to claim 1, characterized in that: The end of the lock rod (853) away from the clamping groove is fixedly connected with a lock rod limiting block (86), a lock rod limiting groove (87) is communicated below the transmission cavity (85), the lock rod limiting block (86) is slidingly connected in the lock rod limiting groove (87), and the diameter of the lock rod limiting groove (87) is larger than that of the transmission cavity (85).

6. The construction device for rectifying a rectangular top pipe after penetrating according to claim 5, characterized in that: The upper end of the shaft rod (83) is fixedly connected with a knob.

7. The construction method of a construction device for rectifying a rectangular top pipe after penetrating according to claims 1-6, characterized in that: The construction method of the construction device for rectifying the rectangular top pipe after penetrating is as follows: S1, according to the rectification treatment mileage range of the pipe joint (10), the ground is cleaned until the soil layer with uniform bearing capacity is exposed, and then the slope is unloaded according to the proportion of 1:1; S2, the Larsen steel sheet pile (1) is punched into the both sides of the pipe joint, and the depth of the Larsen steel sheet pile (1) exceeds the bottom elevation of the pipe joint (10) by 3.75m; S3, along the axis direction of the rectification pipe joint (10), the dewatering well (2) is arranged between the both sides of the Larsen steel sheet pile (1) and the slope foot, and the water quantity of the dewatering well (2) is increased according to the actual situation; S4, after the Larsen steel sheet pile (1) is applied and the water level of the dewatering well (2) is lowered to at least 0.5m below the pipe bottom, the soil is excavated layer by layer, and the bracket (31) is welded in time, the steel enclosing purlin (3) and the steel support (4) are erected, finally the soil above the pipe joint (10) is completely excavated, then the left side of the pipe joint (10) is excavated to the bottom of the pipe joint (10), and the right side is excavated to 95cm below the top plate of the pipe joint (10); S5, the concrete limiting block (5) with a height of 60cm and a width of 200cm is constructed at the chamfered position below the left side of the pipe joint (10), the cushion layer (61) with a width of 110.4cm and a thickness of 5cm is constructed at the right side of the pipe joint (10), and the concrete cushion beam (6) with a height of 70cm and a width of 76cm is poured on the cushion layer (61) close to the Larsen steel sheet pile (1); S6, the second steel enclosing purlin (72) is installed at the top corner position of the rotating side of the pipe joint (10), the square wood (721) is placed below the second steel enclosing purlin (72), one 50-ton jack (7) is installed for each pipe joint (10), steel plate pads (71) are added between the jack (7) and the concrete cushion beam (6) in time according to the rectification condition to facilitate the adjustment of the stroke of the jack (7) and the rectification angle; S7, the PLC operating system is adopted to control the entire hydraulic system of the jack (7), the pipe joint (10) to be treated is gradually pressurized and jacked in the operation room, and the torsion condition of the pipe joint (10) and the elevation condition of the pipe joint (10) are judged through the monitoring system, the pipe joint (10) is gradually twisted until it is within the deviation range allowed by the specification under the condition of ensuring the safety of the structure of the pipe joint (10); S8, after the rectification is in place, the wall behind the pipe joint (10) is grouted with double liquid, and the touch mud hole is adopted for grouting, which not only has the effect of soil compaction grouting, but also strengthens the external waterproofing of the pipe joint (10); S9, after the grouting is completed and the strength is reached, the jacking system is removed, the soil is backfilled layer by layer, compacted, and the support and the Larsen steel sheet pile (1) are removed, and the dewatering well (2) is plugged.

8. The construction method of claim 7, wherein the construction method is characterized by: In step S6, after the second steel enclosing purlin (72) is installed, cement slurry is filled between the pipe joint (10) and the second steel enclosing purlin (72).

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