CN217872816U - Lining segment for predicting shield tunneling machine bearing pressure in advance - Google Patents
Lining segment for predicting shield tunneling machine bearing pressure in advance Download PDFInfo
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- CN217872816U CN217872816U CN202221565376.3U CN202221565376U CN217872816U CN 217872816 U CN217872816 U CN 217872816U CN 202221565376 U CN202221565376 U CN 202221565376U CN 217872816 U CN217872816 U CN 217872816U
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Abstract
The application relates to a lining segment for predicting shield tunneling machine bearing pressure in advance, which relates to the field of shield tunneling machine construction, and comprises a lining segment, a soil pressure gauge and a water pressure gauge, wherein the soil pressure gauge and the water pressure gauge are respectively arranged on the outer side surface of the lining segment. The method has the effect of relieving the damage of the shield tunneling machine in the tunneling process.
Description
Technical Field
The application relates to the field of shield tunneling machine construction, in particular to a lining segment for predicting shield tunneling machine bearing pressure in advance.
Background
In the construction process of the diversion engineering shield tunneling machine, the burial depth of a construction tunnel section is usually more than one hundred meters, meanwhile, the construction tunnel section is also located below an underground water level, the underground water type is pore water, the water and soil pressure borne by the muddy water balance shield tunneling machine in the tunneling process must be within a safety range, and otherwise, the main bearing and the tail brush of the earth balance shield tunneling machine can be damaged.
At present, during construction, water pressure and soil pressure on a tunnel section are actually measured through an embedding instrument, and a shield tunneling front precipitation scheme and shield tunneling parameters are adjusted in real time to ensure that the water and soil pressure borne by the shield tunneling machine in the tunneling process is within a safe range value.
The buried water pressure gauge and the buried soil pressure gauge need to be observed through a drilling buried pipe, but the original state soil layer structure is damaged after drilling, the geological structure and the density of the backfill soil body and the natural soil body are different, and the observation data can be caused to have errors, so that the damage of the shield tunneling machine in the tunneling process can be possibly caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the shield tunneling machine is damaged in the tunneling process, the lining segment for predicting the bearing pressure of the shield tunneling machine in advance is provided.
The application provides a lining segment for predicting shield constructs machine bearing pressure in advance adopts following technical scheme:
a lining segment for predicting shield tunneling machine bearing pressure in advance comprises a lining segment, a soil pressure gauge and a water pressure gauge, wherein the soil pressure gauge and the water pressure gauge are arranged on the outer side surface of the lining segment respectively.
By adopting the technical scheme, the soil pressure gauge and the water pressure gauge are arranged on the outer side surface of the lining segment, and are respectively contacted with the soil layer of the tunnel segment, so that the soil pressure and the water pressure in the tunnel segment are directly measured, and the water and soil pressure borne by the shield tunneling machine in the advancing direction is measured and calculated according to the measured soil pressure and water pressure, so that the problem of damage of the shield tunneling machine in the advancing process is solved.
Optionally, the lining segment is cylindrical, the lining segment comprises a plurality of segment pieces, and the lining segment is formed by assembling the plurality of segment pieces around the circumferential direction of the lining segment; the outer side surface of the pipe piece is provided with a mounting groove, and the bottom of the mounting groove is provided with a threading hole; the soil pressure gauge comprises a soil pressure gauge main body, a fixing assembly and a cable, the soil pressure gauge main body is arranged in the mounting groove, the fixing assembly is connected with the pipe piece and the soil pressure gauge main body respectively, the cable is electrically connected with the soil pressure gauge main body, the cable penetrates through the threading hole, and the fixing assembly is used for fixedly arranging the soil pressure gauge main body in the mounting groove.
Through adopting above-mentioned technical scheme, through fixed subassembly with the soil pressure gauge is fixed to be set up in the mounting groove of pipe piece spare, measure the soil pressure of hole section soil layer through the soil pressure gauge.
Optionally, the soil pressure gauge still includes the tablet with soil pressure gauge main part fixed connection, and the tablet is located the one end that the mounting groove tank bottom was kept away from to the soil pressure gauge main part, and the lateral surface of tablet and section of jurisdiction spare flushes.
Through adopting above-mentioned technical scheme, the shape change can take place along perpendicular and the direction of self for the tablet to the deformation through the tablet can record the soil pressure of construction hole section.
Optionally, the fixing assembly comprises a plurality of fixing rings which are fixedly arranged along the circumferential direction of the soil pressure gauge main body, screws connected with the pipe piece in a threaded mode are arranged in the plurality of fixing rings in a penetrating mode, and threaded holes used with the screws in a matched mode are formed in the pipe piece.
By adopting the technical scheme, when in use, a cable of the soil pressure gauge is threaded from one end, close to the mounting groove, of the threading hole to the other end of the threading hole, and the soil pressure gauge is fixedly arranged in the mounting groove of the pipe piece by using a screw; simultaneously, when the use of earth pressure gauge goes wrong, the setting of screw also can realize earth pressure gauge's quick replacement.
Optionally, a mounting hole is formed in the pipe piece in a penetrating mode, a water pressure gauge is arranged in the mounting hole and comprises a water pressure gauge main body and a vibrating string, the water pressure gauge main body is detachably connected with the pipe piece, and the vibrating string is fixedly arranged at one end, far away from the inner side of the pipe piece, of the water pressure gauge main body.
By adopting the technical scheme, when the water pressure gauge is used, one end of the water pressure gauge, which is provided with the vibrating string, can be pricked into a soil layer of the construction hole section, so that the vibrating string can be in contact with the soil layer, and the vibrating string is in contact with underground water, thereby being capable of detecting the water pressure of the construction hole section.
Optionally, the outer side of the water pressure gauge main body is provided with a first thread, the inner side of the mounting hole is provided with a second thread matched with the first thread for use, and the water pressure gauge is in threaded connection with the mounting hole.
Through adopting above-mentioned technical scheme, through the setting of first screw thread and second screw thread, can make water pressure gauge and section of jurisdiction spare threaded connection, simultaneously, also can be through the rotation of water pressure gauge around the axis direction of self, adjust the position of water pressure gauge for the section of jurisdiction spare.
Optionally, the water pressure gauge is further fixedly sleeved with a rubber ring, the rubber ring is located between the vibrating string and the first thread, and the outer peripheral surface of the rubber ring is abutted to the inner side surface of the mounting hole.
Through adopting above-mentioned technical scheme, through the setting of rubber circle, can avoid the groundwater of construction hole section to pass through the mounting hole and get into in the tunnel.
Optionally, a plurality of the pipe piece pieces are all fixedly provided with a soil pressure gauge and a water pressure gauge.
Through adopting above-mentioned technical scheme, through a plurality of water pressure gauge, the soil pressure gauge that sets up on a plurality of pipe piece, can all detect out the soil pressure of construction hole section circumference, water pressure, make the water and soil pressure of the construction hole section that records more accurate, further alleviate the problem that the shield constructs the machine and digs the in-process and damage.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the soil pressure gauge and the water pressure gauge are arranged on the outer side surface of the lining segment, so that the soil pressure and the water pressure in the tunnel segment are directly measured, and the soil and water pressure borne by the shield machine in the advancing direction is measured and calculated according to the measured soil pressure and water pressure, so that the problem of damage of the shield machine in the advancing process is solved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
Fig. 2 is a partial exploded view of an embodiment of the present application.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Description of reference numerals: 1. lining a segment; 11. a tube sheet; 111. mounting grooves; 112. mounting holes; 1121. a second thread; 113. threading holes; 114. a threaded hole; 2. a soil pressure gauge; 21. a soil pressure gauge main body; 22. an induction plate; 23. a cable; 24. a fixing assembly; 241. a fixing ring; 242. a screw; 3. a water pressure gauge; 31. a water pressure gauge body; 32. vibrating the string; 33. a first thread; 34. a rubber ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a lining segment for predicting the bearing pressure of a shield machine in advance. Referring to fig. 1, a lining segment for predicting shield tunneling machine bearing pressure in advance includes a lining segment 1, a soil pressure gauge 2 and a water pressure gauge 3, and the soil pressure gauge 2 and the water pressure gauge 3 are both disposed on the lining segment 1.
During the use, soil pressure gauge 2, water pressure meter 3 that set up on lining cutting section of jurisdiction 1 can detect out soil pressure, the water pressure of construction hole section soil layer respectively.
Referring to fig. 2 and 3, the lining segment 1 is cylindrical, the lining segment 1 includes a plurality of segments 11 having arc-shaped longitudinal sections, and the lining segment 1 is assembled by a plurality of segments 11 around the circumference of the lining segment 1. Each pipe piece 11 is provided with a mounting groove 111 and a mounting hole 112, the mounting groove 111 and the mounting hole 112 on each pipe piece 11 are arranged along the axial direction of the lining pipe piece 1, the mounting groove 111 is arranged on the outer side surface of the pipe piece 11, the mounting groove 111 is arranged along the radial direction of the pipe piece 11, and the center of the bottom of the mounting groove 111 is provided with a threading hole 113 in a penetrating manner along the radial direction of the pipe piece 11; the mounting hole 112 is disposed to penetrate in the radial direction of the segment 11, and a second thread 1121 is disposed on the inner side surface of the mounting hole 112.
Referring to fig. 2 and 3, the soil pressure gauge 2 includes a soil pressure gauge main body 21, an induction plate 22, a cable 23 and a fixing assembly 24, the soil pressure gauge main body 21 and the induction plate 22 are both in a wafer shape, the soil pressure gauge main body 21 is located in the installation groove 111, the induction plate 22 is fixedly arranged on one side of the soil pressure gauge main body 21 far away from the bottom of the installation groove 111, and the induction plate 22 is flush with the outer side surface of the segment piece 11; the cable 23 is arranged in the threading hole 113 in a penetrating way, and the cable 23 is electrically connected with the soil pressure gauge main body 21; fixed subassembly 24 includes along the fixed ring 241 of a plurality of soil pressure gauge main part 21 circumference fixed setting, and fixed ring 241 along soil pressure gauge main part 21 circumference evenly distributed, all wears to be equipped with screw 242 in the fixed ring 241 of a plurality of, and sets up the screw hole 114 that uses with screw 242 cooperation in the mounting groove 111 of section of jurisdiction piece 11, screw 242 and section of jurisdiction piece 11 threaded connection.
During the use, with the cable 23 of soil pressure gauge 2 through threading hole 113 by the outside of section of jurisdiction piece 11 to the inboard of section of jurisdiction piece 11, one side that sensing plate 22 was kept away from to soil pressure gauge 2 and the bottom butt of mounting groove 111 utilize screw 242 to be fixed in soil pressure gauge 2 in the mounting groove 111 of section of jurisdiction piece 11, the surface of sensing plate 22 and the lateral surface of lining cutting section of jurisdiction 1 are flushed.
Referring to fig. 2 and 3, the water pressure gauge 3 comprises a water pressure gauge main body 31 and a vibrating string 32, the water pressure gauge main body 31 is arranged in the mounting hole 112 in a penetrating manner, the vibrating string 32 is fixedly connected with the water pressure gauge main body 31 and is arranged at one end of the water pressure gauge main body 31 close to the outer side of the lining segment 1, and the end of the water pressure gauge main body 31 at the end provided with the vibrating string 32 is in a conical cylinder shape; the outer side face of the water pressure gauge main body 31 is provided with a first thread 33 matched with the second thread 1121 for use, the water pressure gauge main body 31 is in threaded connection with the segment piece 11, the water pressure gauge 3 is further fixedly sleeved with a rubber ring 34, the rubber ring 34 is located between the vibrating string 32 and the first thread 33, and the outer peripheral face of the rubber ring 34 is abutted to the inner side face of the mounting hole 112.
When the water pressure gauge is used, the water pressure gauge 3 is in threaded connection with the segment piece 11, one end, provided with the vibrating string 32, of the water pressure gauge 3 faces the outer side of the lining segment 1, and the vibrating string 32 is located outside the mounting hole 112.
The implementation principle of the lining segment for predicting the bearing pressure of the shield tunneling machine in advance is as follows: the soil pressure gauge 2 and the water pressure gauge 3 are arranged on the lining segment 1, so that the induction plates 22 and the vibrating strings 32 can be in contact with soil layers of the tunnel sections, soil pressure and water pressure in a plurality of groups of tunnel sections can be directly measured, water and soil pressure borne by the shield tunneling machine in the forward direction can be measured according to the measured soil pressure and water pressure, and the problem of damage of the shield tunneling machine in the tunneling process can be solved.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A lining segment (1) for predicting the bearing pressure of a shield machine in advance is characterized in that: the soil pressure gauge comprises a lining segment (1), a soil pressure gauge (2) and a water pressure gauge (3), wherein the soil pressure gauge (2) and the water pressure gauge (3) are respectively arranged on the outer side surface of the lining segment (1).
2. A lining segment (1) for predicting shield tunneling machine bearing pressure in advance according to claim 1, wherein: the lining segment (1) is cylindrical, the lining segment (1) comprises a plurality of segment pieces (11), and the lining segment (1) is formed by assembling the segment pieces (11) around the circumferential direction of the lining segment (1); the outer side surface of the pipe piece (11) is provided with a mounting groove (111), and the bottom of the mounting groove (111) is provided with a threading hole (113); soil pressure gauge (2) include soil pressure gauge main part (21), fixed subassembly (24) and cable (23), and soil pressure gauge main part (21) sets up in mounting groove (111), and cable (23) are connected with soil pressure gauge main part (21) electricity, and cable (23) are worn to locate in through wires hole (113), and fixed subassembly (24) are used for with soil pressure gauge main part (21) fixed the setting in mounting groove (111).
3. A lining segment (1) for the advanced prediction of shield tunneling machine bearing pressure according to claim 2, characterized in that: soil pressure gauge (2) still include with soil pressure gauge main part (21) fixed connection's tablet (22), tablet (22) are fixed to be set up in soil pressure gauge main part (21) and keep away from the one side of mounting groove (111) tank bottom, and tablet (22) flush with the lateral surface of section of jurisdiction piece (11).
4. A lining segment (1) for predicting shield tunneling machine bearing pressure in advance according to claim 2, wherein: fixed subassembly (24) include along the fixed solid fixed ring (241) of a plurality of the fixed setting of soil pressure meter main part (21) circumference, all wear to be equipped with in the solid fixed ring (241) of a plurality of with section of jurisdiction piece (11) threaded connection's screw (242), and set up screw hole (114) that cooperate the use with screw (242) in mounting groove (111).
5. A lining segment (1) for predicting shield tunneling machine bearing pressure in advance according to claim 2, wherein: the pipe piece (11) is further provided with a mounting hole (112) in a penetrating mode, the water pressure gauge (3) is arranged in the mounting hole (112), the water pressure gauge (3) comprises a water pressure gauge main body (31) and a vibrating string (32), the water pressure gauge main body (31) is detachably connected with the pipe piece (11), and the vibrating string (32) is fixedly arranged at one end, far away from the inner side of the pipe piece (11), of the water pressure gauge main body (31).
6. A lining segment (1) for the advanced prediction of shield tunneling machine bearing pressure according to claim 5, characterized in that: the outer side of the water pressure gauge main body (31) is provided with a first thread (33), the inner side of the mounting hole (112) is provided with a second thread (1121) matched with the first thread (33) for use, and the water pressure gauge main body (31) is in threaded connection with the pipe piece (11).
7. A lining segment (1) for predicting shield tunneling machine bearing pressure in advance according to claim 5, wherein: the water pressure gauge is characterized in that a rubber ring (34) is further fixedly sleeved on the water pressure gauge main body (31), the rubber ring (34) is located between the vibrating string (32) and the first thread (33), and the outer peripheral surface of the rubber ring (34) is abutted to the inner side surface of the mounting hole (112).
8. A lining segment (1) for predicting shield tunneling machine bearing pressure in advance according to claim 4, wherein: a plurality of the pipe piece pieces (11) are all fixedly provided with a soil pressure gauge (2) and a water pressure gauge (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221565376.3U CN217872816U (en) | 2022-06-22 | 2022-06-22 | Lining segment for predicting shield tunneling machine bearing pressure in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221565376.3U CN217872816U (en) | 2022-06-22 | 2022-06-22 | Lining segment for predicting shield tunneling machine bearing pressure in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217872816U true CN217872816U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221565376.3U Active CN217872816U (en) | 2022-06-22 | 2022-06-22 | Lining segment for predicting shield tunneling machine bearing pressure in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217872816U (en) |
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2022
- 2022-06-22 CN CN202221565376.3U patent/CN217872816U/en active Active
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