CN105258824B - A kind of shield tunnel Water And Earth Pressures monitoring rod - Google Patents
A kind of shield tunnel Water And Earth Pressures monitoring rod Download PDFInfo
- Publication number
- CN105258824B CN105258824B CN201510746205.9A CN201510746205A CN105258824B CN 105258824 B CN105258824 B CN 105258824B CN 201510746205 A CN201510746205 A CN 201510746205A CN 105258824 B CN105258824 B CN 105258824B
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- pressure sensor
- rod
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- pressure
- monitoring
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 239000002689 soil Substances 0.000 claims abstract description 65
- 239000011148 porous material Substances 0.000 claims abstract description 40
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 23
- 238000005192 partition Methods 0.000 claims description 12
- 235000014121 butter Nutrition 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention relates to a kind of shield tunnel Water And Earth Pressures monitoring rod, including pressure monitoring stick body, the pressure monitoring stick body includes the rod-shaped barred body of cylindricality, is connected to the end compartments of cylindricality rod-shaped barred body one end end and is set in the seal box of the rod-shaped barred body other end of cylindricality, soil pressure sensor and pore water pressure sensor are equipped with the end compartments, the extraction wire set on the soil pressure sensor and pore water pressure sensor is connected through the rod-shaped barred body of cylindricality with deformeter；When carrying out Monitoring on Earth Pressure, pressure monitoring stick body sequentially passes through section of jurisdiction, grouting layer to the soil body, section of jurisdiction and the junction of pressure monitoring stick body are sealed by seal box, soil pressure and pore water pressure are measured by soil pressure sensor and pore water pressure sensor at the same time, measurement result is transmitted to deformeter by extraction wire.Compared with prior art, the present invention has the advantages that easy to install, reliability is high, can measure soil pressure and pore water pressure at the same time.
Description
Technical field
The present invention relates to tunneling shield parameter measuring technical field, is monitored more particularly, to a kind of shield tunnel Water And Earth Pressures
Rod.
Background technology
Shield construction is a kind of Fully-mechanized construction method in the construction of tunnel excavation method, it is on ground by Shield-type machinery
Middle propulsion, supports surrounding country rock by shield shell and section of jurisdiction and prevents toward caving in tunnel, while in front of excavation face
Soil excavation is carried out with topping machanism, machinery is transported outside hole by being unearthed, and by jack in rear pressurization jacking, and assembly is prefabricated
Concrete pipe sheet, forms a kind of mechanized construction method of tunnel structure, since shield construction is in technology and for security excellent
More property, is widely used in Tunnel Engineering at present.
Special technique-grouting behind shaft or drift lining is employed in shield tunnel construction, grouting layer has wrapped up tunnel surface.Traditional
In the earth pressure test method of tunnel duct piece surface, by earth pressure gauge pre-plugged on section of jurisdiction surface.Earth pressure gauge is by grouting behind shaft or drift lining
Layer parcel wherein, influences the reliability of Monitoring on Earth Pressure result, and monitoring object is single.Therefore, urgent need, which seeks one kind, to supervise
Survey the measuring technology and equipment of tunnel perimeter soil body real bearing state.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide it is a kind of it is easy to install,
Reliability is high, can measure soil pressure and the shield tunnel Water And Earth Pressures monitoring rod of pore water pressure at the same time.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of shield tunnel Water And Earth Pressures monitoring rod, for measuring the soil pressure and pore water pressure of the soil body, with deformeter
Connection, including pressure monitoring stick body, the pressure monitoring stick body include the rod-shaped barred body of cylindricality, are connected to the rod-shaped barred body of cylindricality
The end compartments of one end end and the seal box for being set in the rod-shaped barred body other end of cylindricality, the end compartments are interior to be equipped with soil pressure
Sensor and pore water pressure sensor, the extraction wire set on the soil pressure sensor and pore water pressure sensor are worn
The rod-shaped barred body of cylindricality is crossed to be connected with deformeter；
When carrying out Water And Earth Pressures monitoring, pressure monitoring stick body sequentially passes through section of jurisdiction, grouting layer to the soil body, section of jurisdiction and pressure
The junction of monitoring rod barred body is sealed by seal box, and soil pressure is measured at the same time by soil pressure sensor and pore water pressure sensor
Power and pore water pressure, measurement result are transmitted to deformeter by extraction wire.
The end compartments include barrel-shaped housing and partition plate, and barrel-shaped housing is divided into the first compartment and by the partition plate
Two compartments, the soil pressure sensor are arranged in the first compartment, and the stress surface of soil pressure sensor is directly contacted with the soil body, institute
State pore water pressure sensor to be arranged in the second compartment, the side wall of second compartment is equipped with some circular permeable holes.
The soil pressure sensor and partition plate closely cementing fixation.
The bottom plate closely cementing fixation of the pore water pressure sensor and barrel-shaped housing.
It is equipped with the bottom plate of the partition plate and barrel-shaped housing for the hole through extraction wire, the barrel-shaped shell
Sealed at the hole of the bottom plate of body by epoxy resin.
The seal box includes sealing front cabinet and sealing back box, and the sealing front cabinet is fixed on pre-buried at the injected hole of section of jurisdiction
On part, the sealing back box is screwed onto outside sealing front cabinet, the sealing front cabinet, sealing back box, the junction of the rod-shaped barred body of cylindricality
Filled with butter packing.
The diameter of the end compartments is greater than or equal to the diameter of the rod-shaped barred body of cylindricality.
The soil pressure sensor is miniature soil pressure cell.
The pore water pressure sensor is miniature pore pressure gauge.
Compared with prior art, the invention has the characteristics that：
1) present invention is equipped with soil pressure sensor and pore water pressure sensor, can measure soil pressure and pore water pressure at the same time
Power, overcomes the problem that traditional measurement method is difficult to realize the water pressure measurement of section of jurisdiction surface pore；
2) soil pressure sensor and pore water pressure sensor, which integrate, is arranged in same position, overcomes traditional measurement method
The shortcomings that can not realizing same position；
3) present invention can measure soil body gross pressure and pore water pressure at the same time in synchronization, and directly obtaining the soil body has effect
Power；
4) miniature soil pressure sensor and pore water pressure sensor are used, it is integrated small, overcome conventional method brill
Layer original stress state disturbs the drawbacks of big to hole installation sensor over the ground；
5) before the installation of soil pressure rod, the depth that the drill bit of drilling machine passes through section of jurisdiction to enter the soil body can need to carry out according to measurement
Adjust, and restricted for fixing and sealing the mode of soil pressure rod from soil pressure rod length, therefore the embedding depth of soil pressure rod
Spend controllable, compared with the mode of traditional pre-buried sensor, measuring point has more flexibility.
6) sensor can be sent to beyond tunnel synchronous grouting layer, measures the true soil pressure influenced from grouting layer and hole
Gap water pressure, the traditional measurement method overcome in section of jurisdiction surface installation soil pressure sensor can not measure lacking for true soil pressure
Fall into；
7) present invention carries out the installation of Monitoring on Earth Pressure rod using injected hole prefabricated on section of jurisdiction, without special on section of jurisdiction
Drilling, overcomes conventional method drilling installation sensor and is destroyed caused by section of jurisdiction.
8) installed after built tunnel piping, without as conventional method in section of jurisdiction production phase pre-buried sensor, gram
It is low and the drawbacks of can not replace the pre-buried survival rate of sensor has been taken.
9) Monitoring on Earth Pressure rod is connected through a screw thread on the built-in fitting for being fixed on injected hole, with complete convenient dismounting, recovers pipe
The original state of piece.
10) present invention is applied widely, in addition to the Water And Earth Pressures except can be applied to shield tunnel monitor, applies also for base
Other fields for needing to carry out Water And Earth Pressures monitoring such as hole, wall.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of end compartments of the present invention；
Fig. 3 is the structure diagram of seal box of the present invention.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
As shown in Figure 1, the present embodiment provides a kind of shield tunnel Water And Earth Pressures monitoring rod, it is arranged in injected hole, one end
Sequentially pass through section of jurisdiction C, grouting layer B is contacted with soil body A, for measuring the soil pressure and pore water pressure of soil body A, the other end with should
Become instrument connection.The shield tunnel Water And Earth Pressures monitoring rod includes pressure monitoring stick body 3, and pressure monitoring stick body 3 includes cylindricality
Rod-shaped barred body 4, the end compartments 8 for being connected to the rod-shaped 4 one end end of barred body of cylindricality and it is set in rod-shaped 4 other end of barred body of cylindricality
Seal box 7, the diameter of end compartments 8 are greater than or equal to the diameter of the rod-shaped barred body 4 of cylindricality, and being equipped with soil pressure in end compartments 8 passes
The extraction wire 5 set on sensor 1 and pore water pressure sensor 2, soil pressure sensor 1 and pore water pressure sensor 2 is worn
The rod-shaped barred body 4 of cylindricality is crossed to be connected with deformeter.In the present embodiment, soil pressure sensor 1 is miniature soil pressure cell, pore water pressure
Sensor 2 is miniature pore pressure gauge, is integrated small.
As shown in Fig. 2, end compartments 8 include barrel-shaped housing and partition plate, barrel-shaped housing is divided into the first compartment by partition plate
With the second compartment, soil pressure sensor 1 is arranged in the first compartment, and the stress surface of soil pressure sensor 1 directly connects with soil body A
Touch, pore water pressure sensor 2 is arranged in the second compartment, and the side wall of the second compartment is equipped with some circular permeable holes 9 so that
Soil body pore water can be naturally infiltrated to fully around miniature earth pressure gauge.Soil pressure sensor 1 is close cementing solid with partition plate
It is fixed.The bottom plate closely cementing fixation of pore water pressure sensor 2 and barrel-shaped housing.On the bottom plate of partition plate and barrel-shaped housing
Equipped with for the hole through extraction wire, sealed at the hole of the bottom plate of barrel-shaped housing by epoxy resin 6.
As shown in figure 3, seal box 7 includes sealing front cabinet 14 and sealing back box 12, sealing front cabinet 14 is fixed by screw thread 10
On built-in fitting 11 at the injected hole of section of jurisdiction, sealing back box 12 is screwed onto outside sealing front cabinet 14 by screw thread 15, sealing front cabinet 14,
Sealing back box 12, the junction of the rod-shaped barred body 4 of cylindricality are filled with butter packing 13.Since butter packing 13 is that there is certain bullet to mould
Property material, when its seal back box 12 with sealing front cabinet 14 be connected during, butter packing 13 is squeezed, with soil pressure rod
Barred body 3 is in close contact, to realize fixed and water shutoff function.
When carrying out Monitoring on Earth Pressure using above-mentioned shield tunnel Water And Earth Pressures monitoring rod, pressure monitoring stick body 3 is worn successively
Cross section of jurisdiction C, grouting layer B to be sealed by seal box 7 to soil body A, section of jurisdiction C and the junction of pressure monitoring stick body 3, pass through soil pressure
Sensor 1 and pore water pressure sensor 2 measure soil pressure and pore water pressure at the same time, and measurement result is passed by extraction wire 5
Transport to deformeter.
Above-mentioned Water And Earth Pressures monitoring rod applies also for base in addition to it can be applied to the Water And Earth Pressures of shield tunnel and monitor
Other fields for needing to carry out Water And Earth Pressures monitoring such as hole, wall, principle are identical with the present embodiment.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using the present invention.
Person skilled in the art obviously easily can make these embodiments various modifications, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to embodiment here, sheet
Field technology personnel disclose according to the present invention, do not depart from improvement that scope of the invention made and modification all should be in this hair
Within bright protection domain.
Claims (8)
1. a kind of shield tunnel Water And Earth Pressures monitoring rod, for measuring the soil pressure and pore water pressure of the soil body, connects with deformeter
Connect, including pressure monitoring stick body (3), it is characterised in that the pressure monitoring stick body (3) include the rod-shaped barred body of cylindricality (4),
It is connected to the end compartments (8) of the rod-shaped barred body of cylindricality (4) one end end and is set in the sealing of the rod-shaped barred body of cylindricality (4) other end
Box (7), the end compartments (8) are interior to be equipped with soil pressure sensor (1) and pore water pressure sensor (2), and the soil pressure passes
The extraction wire (5) set on sensor (1) and pore water pressure sensor (2) connects through the rod-shaped barred body of cylindricality (4) and deformeter
Connect；
The end compartments (8) include barrel-shaped housing and partition plate, and barrel-shaped housing is divided into the first compartment and by the partition plate
Two compartments, the soil pressure sensor (1) are arranged in the first compartment, and the stress surface of soil pressure sensor (1) is directly and the soil body
Contact, the pore water pressure sensor (2) are arranged in the second compartment, and the side wall of second compartment is equipped with some circles
Permeable hole (9)；
When carrying out Water And Earth Pressures monitoring, pressure monitoring stick body (3) sequentially passes through section of jurisdiction, grouting layer to the soil body, section of jurisdiction and pressure
The junction of monitoring rod barred body (3) is sealed by seal box (7), passes through soil pressure sensor (1) and pore water pressure sensor (2)
Soil pressure and pore water pressure are measured at the same time, measurement result is transmitted to deformeter by extraction wire (5).
2. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterised in that the soil pressure sensor
(1) with partition plate closely cementing fixation.
3. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterised in that the pore water pressure sensing
The bottom plate closely cementing fixation of device (2) and barrel-shaped housing.
4. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterised in that the partition plate and barrel-shaped shell
It is equipped with the bottom plate of body for the hole through extraction wire, by epoxy resin at the hole of the bottom plate of the barrel-shaped housing
(6) seal.
5. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterised in that the seal box (7) includes
Front cabinet (14) and sealing back box (12) are sealed, the sealing front cabinet (14) is fixed on the built-in fitting at the injected hole of section of jurisdiction (11),
The sealing back box (12) is screwed onto sealing front cabinet (14) outside, the sealing front cabinet (14), sealing back box (12), the rod-shaped rod of cylindricality
The junction of body (4) is filled with butter packing (13).
6. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterised in that the end compartments (8)
Diameter is greater than or equal to the diameter of the rod-shaped barred body of cylindricality (4).
7. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterised in that the soil pressure sensor
(1) it is miniature soil pressure cell.
8. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterised in that the pore water pressure sensing
Device (2) is miniature pore pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510746205.9A CN105258824B (en) | 2015-11-05 | 2015-11-05 | A kind of shield tunnel Water And Earth Pressures monitoring rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510746205.9A CN105258824B (en) | 2015-11-05 | 2015-11-05 | A kind of shield tunnel Water And Earth Pressures monitoring rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105258824A CN105258824A (en) | 2016-01-20 |
| CN105258824B true CN105258824B (en) | 2018-04-13 |
Family
ID=55098602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510746205.9A Active CN105258824B (en) | 2015-11-05 | 2015-11-05 | A kind of shield tunnel Water And Earth Pressures monitoring rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN105258824B (en) |
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Effective date of registration: 20190104 Address after: Room 2045, 2nd floor, No. 3 Lane 1473, Zhenguang Road, Putuo District, Shanghai, 2003 Patentee after: Shanghai Ling Yun Civil Engineering Consulting Co. Ltd. Address before: Room 12-15, 17/F, Lane 3, 1298, Changde Road, Putuo District, Shanghai, 2003 Patentee before: Bai Yun |
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