CN211258606U - Methane treatment device for shield construction to penetrate through stratum containing methane tank - Google Patents
Methane treatment device for shield construction to penetrate through stratum containing methane tank Download PDFInfo
- Publication number
- CN211258606U CN211258606U CN201921364922.5U CN201921364922U CN211258606U CN 211258606 U CN211258606 U CN 211258606U CN 201921364922 U CN201921364922 U CN 201921364922U CN 211258606 U CN211258606 U CN 211258606U
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- Prior art keywords
- probe
- stratum
- methane
- pipe
- bottom plate
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 239000000523 sample Substances 0.000 claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000004062 sedimentation Methods 0.000 claims abstract description 20
- 238000005553 drilling Methods 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 241001669679 Eleotris Species 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to the technical field of shield construction, and discloses a methane treatment device for passing through a stratum containing a methane tank during shield construction. The probe comprises a probe tube extending into the stratum, a movable probe is arranged at one end of the probe tube positioned in the stratum, the probe comprises a conical head with the diameter of the bottom wall larger than the outer diameter of the probe tube, and a connecting rod extending into the probe tube is arranged on the bottom wall of the conical head; one end of the probe pipe, which is positioned on the stratum, is connected with a sedimentation tank through a rubber gas pipe; the sedimentation tank is matched with a water tank, a gas collection bag communicated with the water tank through a drain pipe is arranged in the water tank, and the sedimentation tank is connected with the gas collection bag through a drain pipe. Through the structure, the methane in the methane-rich stratum can be discharged and processed, the safety risk of shield propulsion is reduced, and the shield propulsion is ensured to be smoothly carried out.
Description
Technical Field
The utility model relates to a shield constructs construction technical field, specifically speaking relates to a shield constructs construction and passes through marsh gas processing apparatus who contains methane-generating pit stratum.
Background
In the main geological disasters faced by the shield construction method, the methane stratum is always a difficult problem of the shield construction method, when a rock-soil layer containing methane is approached or excavated in the subway tunnel construction process, the methane can be diffused at a high speed and gushes into a subway tunnel, and once the methane is combusted or exploded, the consequences are difficult to imagine.
In the process of developing and utilizing underground space in organic humus stratum, the release of shallow layer gas causes serious economic loss and social influence caused by serious engineering accidents of foundation pit, open caisson and tunnel construction. The rich organic matter geology can generate methane under the condition of reducing environment, and if the tunnel structures are all located in a methane distribution area, the shallow methane is released during construction, so that soil layer instability and explosion can be caused, and engineering safety accidents are easily caused. Therefore, the safety risk of shield propulsion can be reduced and the smooth shield propulsion can be ensured by adopting air release measures to ensure that the pressure of the treated methane is less than 0.05 Mpa. The shield construction of the stratum rich in methane is always a difficult problem.
SUMMERY OF THE UTILITY MODEL
Aiming at certain or some defects in the prior art, the utility model provides a methane treatment device for shield construction to pass through a stratum containing a methane tank. The device can realize the exhaust treatment of the methane in the stratum rich in methane, and can ensure the smooth proceeding of the shield propulsion.
In order to solve the above technical problem, the present invention solves the above technical problems.
A marsh gas processing device for shield construction to penetrate through a stratum containing a marsh gas tank comprises a probe extending into the stratum, wherein a movable probe is arranged at one end of the probe positioned in the stratum, the probe comprises a conical head with the diameter of the bottom wall larger than the outer diameter of the probe, and a connecting rod extending into the probe is arranged on the bottom wall of the conical head; one end of the probe pipe, which is positioned on the stratum, is connected with a sedimentation tank through a rubber gas pipe; the sedimentation tank is matched with a water tank, a gas collection bag communicated with the water tank through a drain pipe is arranged in the water tank, and the sedimentation tank is connected with the gas collection bag through a drain pipe.
Through the structure of the utility model, the probe extends into the probe and is connected with one end of the probe to be inserted into the stratum containing methane, the probe is pulled upwards, and the probe is separated from the probe due to the dead weight of the probe and the friction force between the probe and the soil body, so that the methane in the stratum is discharged out of the stratum by the probe, and the shield propulsion is smoothly carried out; the sedimentation tank is arranged, so that methane gas discharged by the probe pipe is separated from silt, and the pressure of the discharged methane can be conveniently tested; the water tank is filled with water, the gas sample collecting bag is filled with water and is connected to the water surface in the water tank by the water discharging pipe, the sedimentation tank and the gas collecting bag are connected by the gas discharging pipe, so that methane precipitated and separated in the sedimentation tank is discharged into the gas collecting bag, and the water in the gas collecting bag is extruded out, so that methane gas is collected by the gas collecting bag; the utility model discloses an foretell technical scheme for marsh gas in the rich marsh gas stratum can be handled by the discharge, makes the marsh gas pressure after handling all be less than 0.05Mpa, reduces the shield and constructs propulsive safe risk, and the guarantee shield constructs propulsive going on smoothly, has also prevented to impel in-process marsh gas and has caused the ground to sink the scheduling problem because of the stratum disturbance eruption.
Preferably, the exhaust pipe is provided with a glass rotameter, and the flow of the biogas flowing into the gas collection bag is preferably measured.
Preferably, the device further comprises a fixing mechanism for fixing the probe tube, the fixing mechanism comprises 2 sleepers which are oppositely placed on the ground, a bottom plate is placed above the sleepers, 2 hydraulic cylinders are oppositely arranged above the bottom plate and perpendicular to the bottom plate, push rods of the 2 hydraulic cylinders are connected with a connecting plate, and the probe tube penetrates through the middle parts of the bottom plate and the connecting plate and extends into the ground.
In the utility model, the bottom plate and the connecting plate are arranged, so that the connecting plate and the bottom plate are mutually matched to keep the probe tube vertically inserted into the stratum rich in methane; the arrangement of the hydraulic cylinder enables a push rod of the hydraulic cylinder to push the connecting plate to move upwards so as to drive the probe to be pulled upwards, and the probe is separated from the probe so that biogas can be discharged from the probe; wherein, the arrangement of the sleepers enables the bottom plate to be placed on the ground more stably.
Preferably, the connecting plate is provided with a mounting hole with a square cross section, the left side wall and the right side wall of the mounting hole are respectively provided with a spring mounting groove along the left-right direction, and the front side wall and the rear side wall of the spring mounting groove are provided with limiting grooves along the left-right direction; all be equipped with the holder that stretches into the mounting hole and be used for the fixed spy pipe of centre gripping through the spring in the spring mounting groove, the holder is equipped with the driving lever that stretches out the spacing groove corresponding the spacing groove on being located the lateral wall of spring mounting inslot, is equipped with the joint groove that is used for joint spy pipe on the holder with coordinating.
In the utility model, through the structure, under the natural state, the spring provides elasticity to push the clamping piece to move into the mounting groove relatively, and the clamping piece is clamped on the side surface of the probe tube through the clamping groove, so that the probe tube is clamped and fixed, preferably, the probe tube is fixed, and the probe tube can be conveniently pulled out from the connecting plate; stir the driving lever and make the joint spare can separate along the tip that the spacing groove moved to, the joint of putting into of visiting the pipe of being convenient for, simultaneously, the spacing groove restricts the driving lever, makes the holder carry out the centre gripping fixedly to visiting the pipe better.
Preferably, the clamping piece is provided with a bulge extending along the vertical direction at the position of the clamping groove.
The utility model discloses in, through bellied setting, make the arch can increase the area of joint groove and visit the pipe side contact, make the frictional force increase make joint spare better to the fixed effect of visiting the pipe centre gripping.
Preferably, ground anchor reaction devices embedded in the ground are provided at both ends of the bottom plate.
The utility model discloses in, through the earth anchor counterforce device who adopts among the prior art for the bottom plate is installed on the sleeper more perfectly steadily, thereby makes fixed establishment work better.
Preferably, drilling holes are uniformly distributed at one end of the side surface of the probe pipe, which is positioned in the formation, and a filter screen is sleeved at the drilling holes on the outer side of the probe pipe.
In the utility model, through the arrangement of the drilling holes and the filter screen, the methane in the stratum can be conveniently discharged from the probing pipe through the port of the probing pipe and the drilling holes; wherein, the setting of filter screen can prevent the discharge of great silt along with marsh gas better.
Drawings
FIG. 1 is a schematic view of a methane treatment apparatus for shield construction crossing a methane-generating pit-containing formation according to example 1;
FIG. 2 is a schematic view of a probe tube according to example 1;
FIG. 3 is a schematic view of a connecting plate in embodiment 1;
FIG. 4 is a sectional view of a connecting plate in embodiment 1;
fig. 5 shows a clip of the connecting plate in embodiment 1.
The names of the parts indicated by the numerical references in the drawings are as follows: 1. a probe tube; 11. a probe; 2. a sedimentation tank; 3. a water tank; 4. a gas collection bag; 41. a drain pipe; 5. a rubber gas delivery pipe; 6. an exhaust pipe; 61. a glass rotameter; 7. a fixing mechanism; 71. crossties; 72. a base plate; 73. a hydraulic cylinder; 74. a connecting plate; 75. a ground anchor counterforce device; 111. a conical head; 112. a connecting rod; 113. drilling a hole; 311. mounting holes; 312. a limiting groove; 321. a clamping member; 322. a deflector rod; 411. a spring mounting groove; 412. a spring; 421. a clamping groove; 511. and (4) protruding.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.
Example 1
As shown in fig. 1-5, the present embodiment provides a biogas treatment apparatus for shield construction to penetrate through a formation containing a biogas generating pit, which includes a probe 1 extending into the formation, a movable probe 11 is disposed at one end of the probe 1 located in the formation, the probe 11 includes a conical head 111 whose bottom wall diameter is larger than the outer diameter of the probe 1, and a connecting rod 112 extending into the probe 1 is disposed on the bottom wall of the conical head 111; one end of the probe 1, which is positioned on the stratum, is connected with a sedimentation tank 2 through a rubber gas pipe 5; the sedimentation tank 2 is matched with a water tank 3, a gas collection bag 4 communicated with the water tank 3 through a drain pipe 41 is arranged in the water tank 3, and the sedimentation tank 2 is connected with the gas collection bag 4 through a drain pipe 6.
Through the structure in the embodiment, the probe 11 extends into the probe 1, one end of the probe 11 connected with the probe 1 is inserted into a stratum containing methane, the probe 1 is pulled up, the probe 11 is separated from the probe 1 due to the self weight of the probe 11 and the friction force between the probe 11 and a soil body, the methane in the stratum is discharged out of the stratum through the probe 1, and the shield propulsion is smoothly carried out; the sedimentation tank 2 is arranged to separate the marsh gas discharged by the probe 1 from silt, so that the pressure of the discharged marsh gas can be conveniently tested; the water tank 3 is filled with water, the gas sample collecting bag 4 is filled with water and is connected to the water surface in the water tank 3 by the drain pipe 41, the sedimentation tank 2 and the gas collecting bag 4 are connected by the exhaust pipe 41, so that the methane precipitated and separated in the sedimentation tank 2 is discharged into the gas collecting bag 4, and the water in the gas collecting bag 4 is extruded out, so that the methane gas is collected by the gas collecting bag 4; according to the technical scheme, the methane in the methane-rich stratum can be discharged and processed, the pressure of the processed methane is smaller than 0.05Mpa, the safety risk of shield propulsion is reduced, the shield propulsion is guaranteed to be carried out smoothly, and the problems that the ground collapses and the like caused by the fact that the methane is sprayed due to stratum disturbance in the propulsion process are solved.
In this embodiment, a glass rotameter 61 is disposed on the exhaust pipe 6, and preferably measures the flow of the biogas flowing into the gas collecting bag 4.
In this embodiment, the device further comprises a fixing mechanism 7 for fixing the probe 1, the fixing mechanism 7 comprises 2 sleepers 71 oppositely placed on the ground, a bottom plate 72 is placed above the sleepers 71, 2 hydraulic cylinders 73 are oppositely arranged above the bottom plate 72 and perpendicular to the bottom plate 72, push rods of the 2 hydraulic cylinders 73 are connected with a connecting plate 74, and the probe 1 penetrates through the middle portions of the bottom plate 72 and the connecting plate 74 and extends into the ground.
In the embodiment, the bottom plate 72 and the connecting plate 74 are arranged, so that the connecting plate 74 and the bottom plate 72 are matched with each other to keep the probe 1 vertically inserted into the methane-rich stratum; the hydraulic cylinder 73 is arranged, so that the probe 1 can be driven to be pulled upwards in the process that the push rod of the hydraulic cylinder 73 pushes the connecting plate 74 to move upwards, the probe 11 is separated from the probe 1, and biogas gas is conveniently discharged from the probe 1; wherein, the setting of sleeper 71 makes bottom plate 72 place on the ground more smoothly.
In this embodiment, the connecting plate 74 is provided with a mounting hole 311 having a square cross section, the left and right side walls of the mounting hole 311 are provided with spring mounting grooves 411 along the left and right direction, and the front and rear side walls of the spring mounting grooves 411 are provided with limiting grooves 312 along the left and right direction; all be equipped with through spring 412 in the spring mounting groove 411 and stretch into mounting hole 311 and be used for the fixed holder 321 that spy the pipe 1 of centre gripping, holder 321 is located and is equipped with the driving lever 322 that stretches out spacing groove 312 on the lateral wall in spring mounting groove 411 corresponding spacing groove 312, is equipped with the joint groove 421 that is used for joint spy pipe 1 on the holder 321 cooperatedly.
Through the above structure in the present embodiment, in a natural state, the spring 412 provides an elastic force to push the clamping member 321 to move relatively into the mounting groove 421, and the clamping member 321 is clamped on the side surface of the probe tube 1 through the clamping groove 421, so that the probe tube 1 is clamped and fixed, preferably, the probe tube 1 is fixed, and the probe tube 1 is conveniently pulled out from the connecting plate 74; poking the shifting lever 322 along the limiting groove 312 towards the end to make the joint 321 can separate, so that the probe 1 can be put into the joint conveniently, and simultaneously, the limiting groove 312 limits the shifting lever 322, preferably making the clamping member 321 clamp and fix the probe 1.
In this embodiment, the protrusions 511 are formed on the clamping member 321 and located at the clamping groove 421 and extend along the vertical direction.
Through the setting of arch 511 in this embodiment, make arch 511 can increase the area of joint groove 421 and spy pipe 1 side contact, make the frictional force increase make joint spare 321 better to the fixed effect of spy pipe 1 centre gripping.
In this embodiment, ground anchor reaction devices 75 embedded in the formation are provided at both ends of the bottom plate 72.
By using the prior art ground anchor reaction 75, the bottom plate 72 is more stably mounted on the crosstie 71, so that the fixing mechanism 7 works better.
In this embodiment, drilling holes 113 are uniformly distributed at one end of the side surface of the probe tube 1, which is located in the formation, and a filter screen is sleeved at the position of the drilling hole 113 outside the probe tube 1.
Through the arrangement of the drilling holes 113 and the filter screen in the embodiment, the methane in the stratum can enter the exploring tube from the port of the exploring tube 1 and the drilling holes 113 and be discharged conveniently; wherein, the setting of filter screen can prevent the discharge of great silt along with marsh gas better.
When the methane treatment device for passing through the stratum containing the methane tank in shield construction is used specifically, a drilling guide hole is drilled in the stratum rich in methane, the probe 11 is inserted into the probe 1 and is inserted into the guide hole to extend into the stratum, and the probe 1 is fixed through the fixing mechanism 7. During exhaust treatment, the hydraulic cylinder 73 rises to drive the connecting plate 74 to rise to pull up the probe 1, so that methane in the formation is discharged, is precipitated by the sedimentation tank 2 and is finally collected in the gas collection bag 4, the methane in the formation is discharged and treated, and the shield propulsion is ensured to be smoothly carried out.
In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a shield constructs marsh gas processing apparatus that construction passed through contains methane-generating pit stratum which characterized in that: the device comprises a probe (1) extending into the stratum, wherein a movable probe (11) is arranged at one end of the probe (1) positioned in the stratum, the probe (11) comprises a conical head (111) with the diameter of the bottom wall larger than the outer diameter of the probe (1), and a connecting rod (112) extending into the probe (1) is arranged on the bottom wall of the conical head (111); one end of the probe (1) on the stratum is connected with a sedimentation tank (2) through a rubber gas pipe (5); the sedimentation tank (2) is matched with a water tank (3), a gas collection bag (4) communicated with the water tank (3) through a drain pipe (41) is arranged in the water tank (3), and the sedimentation tank (2) is connected with the gas collection bag (4) through a drain pipe (6); the device is characterized by further comprising a fixing mechanism (7) for fixing the probe tube (1), wherein the fixing mechanism (7) comprises 2 sleepers (71) which are oppositely placed on the ground, a bottom plate (72) is placed above the sleepers (71), 2 hydraulic cylinders (73) are oppositely arranged above the bottom plate (72) and perpendicular to the bottom plate (72), push rods of the 2 hydraulic cylinders (73) are connected with a connecting plate (74), and the probe tube (1) penetrates through the middle parts of the bottom plate (72) and the connecting plate (74) and extends into the ground; a mounting hole (311) with a square cross section is formed in the connecting plate (74), spring mounting grooves (411) are formed in the left side wall and the right side wall of the mounting hole (311) along the left-right direction, and limiting grooves (312) are formed in the front side wall and the rear side wall of each spring mounting groove (411) along the left-right direction; all be equipped with holder (321) that stretch into mounting hole (311) and be used for the fixed spy pipe of centre gripping (1) through spring (412) in spring mounting groove (411), holder (321) are located on the lateral wall in spring mounting groove (411) and correspond spacing groove (312) and are equipped with driving lever (322) that stretch out spacing groove (312), are equipped with joint groove (421) that are used for joint spy pipe (1) on holder (321) with cooperating.
2. The biogas treatment device for passing through the stratum containing the biogas digester in shield construction according to claim 1, characterized in that: the exhaust pipe (6) is provided with a glass rotameter (61).
3. The biogas treatment device for passing through the stratum containing the biogas digester in shield construction according to claim 1, characterized in that: the clamping piece (321) is positioned on the clamping groove (421) and extends along the up-down direction to form a protrusion (511).
4. The biogas treatment device for passing through the stratum containing the biogas digester in shield construction according to claim 3, wherein: ground anchor reaction devices (75) embedded in the stratum are arranged at two ends of the bottom plate (72).
5. The biogas treatment device for passing through the stratum containing the biogas digester in shield construction according to claim 1, characterized in that: drilling holes (113) are uniformly distributed at one end of the side surface of the probe tube (1) which is positioned in the stratum, and a filter screen is sleeved at the position of the drilling holes (113) on the outer side of the probe tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921364922.5U CN211258606U (en) | 2019-08-22 | 2019-08-22 | Methane treatment device for shield construction to penetrate through stratum containing methane tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921364922.5U CN211258606U (en) | 2019-08-22 | 2019-08-22 | Methane treatment device for shield construction to penetrate through stratum containing methane tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211258606U true CN211258606U (en) | 2020-08-14 |
Family
ID=71989562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921364922.5U Withdrawn - After Issue CN211258606U (en) | 2019-08-22 | 2019-08-22 | Methane treatment device for shield construction to penetrate through stratum containing methane tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211258606U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442187A (en) * | 2022-01-27 | 2022-05-06 | 杭州市勘测设计研究院有限公司 | Shallow harmful gas surveying device and method |
-
2019
- 2019-08-22 CN CN201921364922.5U patent/CN211258606U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442187A (en) * | 2022-01-27 | 2022-05-06 | 杭州市勘测设计研究院有限公司 | Shallow harmful gas surveying device and method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200814 Effective date of abandoning: 20240222 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200814 Effective date of abandoning: 20240222 |