CN205157084U - Shield tunnel water and soil pressure monitoring stick - Google Patents
Shield tunnel water and soil pressure monitoring stick Download PDFInfo
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- CN205157084U CN205157084U CN201520877888.7U CN201520877888U CN205157084U CN 205157084 U CN205157084 U CN 205157084U CN 201520877888 U CN201520877888 U CN 201520877888U CN 205157084 U CN205157084 U CN 205157084U
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Abstract
The utility model relates to a shield tunnel water and soil pressure monitoring stick, including pressure monitoring stick barred body, pressure monitoring stick barred body includes the shaft -like barred body of cylindricality, connects establishes the seal box at the shaft -like barred body other end of cylindricality at the tip compartment and the cover of the shaft -like barred body one end tip of cylindricality, be equipped with native pressure sensor and hole water pressure sensor in the tip compartment, the wire of drawing forth that soil pressure sensor and hole water pressure sensor went up the setting passes the shaft -like barred body of cylindricality and is connected with the strain gauge, when carrying out native pressure monitoring, pressure monitoring stick barred body passes section of jurisdiction, slip casting layer to the soil body in proper order, and the section of jurisdiction is sealed by the seal box with the junction of pressure monitoring stick barred body, and through native pressure sensor and hole water pressure sensor simultaneous measurement soil pressure and pore water pressure, measuring result transmits to the strain gauge through drawing forth the wire. Compared with the prior art, the utility model has the advantages of but installation convenient to use, the high simultaneous measurement soil pressure of reliability and pore water pressure.
Description
Technical field
The utility model relates to tunneling shield parameter measuring technical field, especially relates to a kind of shield tunnel Water And Earth Pressures monitoring rod.
Background technology
Shield construction is the Fully-mechanized construction method of one in the construction of tunnel excavation method, it is advanced in ground by Shield-type machinery, prevent toward caving in tunnel by shield structure shell and section of jurisdiction supporting surrounding country rock, carry out soil excavation at excavation face front topping machanism simultaneously, transport outside hole by unearthed machinery, by lifting jack in rear pressurization jacking, and assembled precast concrete section of jurisdiction, form a kind of mechanized construction method of tunnel structure, due to the superiority of shield construction in technology and safety, be widely used in Tunnel Engineering at present.
Have employed special technique-grouting behind shaft or drift lining in shield tunnel construction, grouting layer has wrapped up tunnel surface.In traditional tunnel duct piece surface soil method for testing pressure, by earth pressure gauge pre-plugged on surface, section of jurisdiction.Earth pressure gauge by grouting behind shaft or drift lining layer parcel wherein, affect the reliability of Monitoring on Earth Pressure result, and monitoring target is single.Therefore, be badly in need of seeking a kind of measuring technology and the equipment that can monitor tunnel perimeter soil body real bearing state.
Summary of the invention
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and provide a kind of easy to install, reliability is high, can measure simultaneously the shield tunnel Water And Earth Pressures of soil pressure and pore water pressure monitoring rod.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of shield tunnel Water And Earth Pressures monitoring rod, for measuring soil pressure and the pore water pressure of the soil body, be connected with strainmeter, comprise pressure monitoring rod barred body, described pressure monitoring rod barred body comprises the shaft-like barred body of cylindricality, is connected to the end compartments of end, cylindricality shaft-like barred body one end and is set in the seal box of the shaft-like barred body other end of cylindricality, be provided with soil pressure sensor and pore water pressure sensor in described end compartments, described soil pressure sensor is connected with strainmeter through the shaft-like barred body of cylindricality with the extraction wire that pore water pressure sensor is arranged.
Described end compartments comprises barrel-shaped housing and dividing plate, barrel-shaped housing is divided into the first compartment and the second compartment by described dividing plate, described soil pressure sensor is arranged in the first compartment, the stress surface of soil pressure sensor directly contacts with the soil body, described pore water pressure sensor is arranged in the second compartment, and the sidewall of described second compartment is provided with some circular permeable holes.
Described soil pressure sensor and dividing plate tight cementing fixing.
The base plate of described pore water pressure sensor and barrel-shaped housing is tight cementing fixing.
The base plate of described dividing plate and barrel-shaped housing is equipped with for the hole through extraction wire, the hole place of the base plate of described barrel-shaped housing is by epoxy sealing.
Described seal box comprises sealing front cabinet and sealing back box, described sealing front cabinet is fixed on the built-in fitting at grouting hole place, section of jurisdiction, described sealing back box is screwed onto outside sealing front cabinet, and the junction of described sealing front cabinet, sealing back box, the shaft-like barred body of cylindricality is filled with butter packing.
The diameter of described end compartments is more than or equal to the diameter of the shaft-like barred body of cylindricality.
Described soil pressure sensor is miniature soil pressure cell.
Described pore water pressure sensor is miniature pore pressure gauge.
Compared with prior art, the utility model has following characteristics:
1) the utility model is provided with soil pressure sensor and pore water pressure sensor, can measure soil pressure and pore water pressure simultaneously, overcomes the difficult problem that traditional measurement method is difficult to realize the water pressure measurement of surface pore, section of jurisdiction;
2) soil pressure sensor and pore water pressure sensor is integrated is arranged in same position, overcomes the shortcoming that traditional measurement method cannot realize same position;
3) the utility model can measure soil body general pressure and pore water pressure at synchronization simultaneously, directly obtains soil body effective stress;
4) adopt miniature soil pressure sensor and pore water pressure sensor, integrated volume is little, overcomes the drawback that the disturbance of classic method boring sensor installation formation virgin state of stress is large;
5) before soil pressure rod is installed, the degree of depth that the drill bit of rig enters the soil body through section of jurisdiction can regulate according to measurement needs, and do not restrict by soil pressure rod length for mode that is fixing and sealing soil pressure rod, therefore the buried depth of soil pressure rod is controlled, compared with the mode of traditional pre-buried sensor, measuring point has more dirigibility.
6) sensor can be delivered to beyond tunnel synchronous grouting layer, measure the true soil pressure and pore water pressure that do not affect by grouting layer, overcome the defect that the traditional measurement method installing soil pressure sensor on surface, section of jurisdiction cannot measure true soil pressure;
7) the utility model utilizes grouting hole prefabricated on section of jurisdiction to carry out the installation of Monitoring on Earth Pressure rod, without the need to holing specially on section of jurisdiction, overcomes the destruction that classic method boring sensor installation causes section of jurisdiction.
8) install after built tunnel piping, without the need to as classic method at section of jurisdiction production phase pre-buried sensor, overcome the low and drawback that cannot change of the pre-buried survival rate of sensor.
9) Monitoring on Earth Pressure rod is threaded connection and is fixed on the built-in fitting of grouting hole, with finishing convenient dismounting, recovers the original state in section of jurisdiction.
10) the utility model is applied widely, and except the Water And Earth Pressures monitoring that can be applicable to shield tunnel, other needs to carry out the field of Water And Earth Pressures monitoring also to can be applicable to foundation ditch, wall etc.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model end compartments;
Fig. 3 is the structural representation of the utility model seal box.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, the present embodiment provides a kind of shield tunnel Water And Earth Pressures to monitor rod, is arranged in grouting hole, and one end contacts with soil body A through section of jurisdiction C, grouting layer B successively, and for measuring soil pressure and the pore water pressure of soil body A, the other end is connected with strainmeter.This shield tunnel Water And Earth Pressures monitoring rod comprises pressure monitoring rod barred body 3, pressure monitoring rod barred body 3 comprises the shaft-like barred body of cylindricality 4, is connected to the end compartments 8 of end, cylindricality shaft-like barred body 4 one end and is set in the seal box 7 of cylindricality shaft-like barred body 4 other end, the diameter of end compartments 8 is more than or equal to the diameter of the shaft-like barred body 4 of cylindricality, be provided with soil pressure sensor 1 and pore water pressure sensor 2 in end compartments 8, soil pressure sensor 1 is connected with strainmeter through the shaft-like barred body 4 of cylindricality with the extraction wire 5 that pore water pressure sensor 2 is arranged.In the present embodiment, soil pressure sensor 1 is miniature soil pressure cell, and pore water pressure sensor 2 is miniature pore pressure gauge, and integrated volume is little.
As shown in Figure 2, end compartments 8 comprises barrel-shaped housing and dividing plate, barrel-shaped housing is divided into the first compartment and the second compartment by dividing plate, soil pressure sensor 1 is arranged in the first compartment, the stress surface of soil pressure sensor 1 directly contacts with soil body A, pore water pressure sensor 2 is arranged in the second compartment, and the sidewall of the second compartment is provided with some circular permeable holes 9, and soil body pore water can be penetrated into around miniature earth pressure gauge fully naturally.Soil pressure sensor 1 is tight cementing fixing with dividing plate.Pore water pressure sensor 2 is tight cementing fixing with the base plate of barrel-shaped housing.The base plate of dividing plate and barrel-shaped housing is equipped with for the hole through extraction wire, the hole place of the base plate of barrel-shaped housing is sealed by epoxy resin 6.
As shown in Figure 3, seal box 7 comprises sealing front cabinet 14 and sealing back box 12, sealing front cabinet 14 is fixed on by screw thread 10 on the built-in fitting 11 at grouting hole place, section of jurisdiction, sealing back box 12 is screwed onto outside sealing front cabinet 14 by screw thread 15, and the junction of sealing front cabinet 14, sealing back box 12, the shaft-like barred body 4 of cylindricality is filled with butter packing 13.Because butter packing 13 has certain plastoelastic material, when its sealing back box 12 is in the process be connected with sealing front cabinet 14, butter packing 13 is squeezed, with soil pressure rod barred body 3 close contact, to realize fixing and water shutoff function.
When adopting above-mentioned shield tunnel Water And Earth Pressures monitoring rod to carry out Monitoring on Earth Pressure, pressure monitoring rod barred body 3 passes section of jurisdiction C, grouting layer B successively to soil body A, the junction of section of jurisdiction C and pressure monitoring rod barred body 3 is sealed by seal box 7, measure soil pressure and pore water pressure by soil pressure sensor 1 and pore water pressure sensor 2, measurement result transfers to strainmeter by drawing wire 5 simultaneously.
Above-mentioned Water And Earth Pressures monitoring rod is except the Water And Earth Pressures monitoring that can be applicable to shield tunnel, and other needs to carry out the field of Water And Earth Pressures monitoring also to can be applicable to foundation ditch, wall etc., and principle is identical with the present embodiment.
The above-mentioned description to embodiment can understand for ease of those skilled in the art and apply the utility model.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the utility model is not limited to embodiment here, and those skilled in the art, according to announcement of the present utility model, do not depart from improvement that category of the present utility model makes and amendment all should within protection domain of the present utility model.
Claims (9)
1. a shield tunnel Water And Earth Pressures monitoring rod, for measuring soil pressure and the pore water pressure of the soil body, be connected with strainmeter, comprise pressure monitoring rod barred body (3), it is characterized in that, described pressure monitoring rod barred body (3) comprises the shaft-like barred body of cylindricality (4), be connected to the end compartments (8) of the shaft-like barred body of cylindricality (4) end, one end and be set in the seal box (7) of the shaft-like barred body of cylindricality (4) other end, soil pressure sensor (1) and pore water pressure sensor (2) is provided with in described end compartments (8), described soil pressure sensor (1) is connected with strainmeter through the shaft-like barred body of cylindricality (4) with the upper extraction wire (5) arranged of pore water pressure sensor (2).
2. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, described end compartments (8) comprises barrel-shaped housing and dividing plate, barrel-shaped housing is divided into the first compartment and the second compartment by described dividing plate, described soil pressure sensor (1) is arranged in the first compartment, the stress surface of soil pressure sensor (1) directly contacts with the soil body, described pore water pressure sensor (2) is arranged in the second compartment, and the sidewall of described second compartment is provided with some circular permeable holes (9).
3. shield tunnel Water And Earth Pressures monitoring rod according to claim 2, is characterized in that, described soil pressure sensor (1) is tight cementing fixing with dividing plate.
4. shield tunnel Water And Earth Pressures monitoring rod according to claim 2, is characterized in that, described pore water pressure sensor (2) is tight cementing fixing with the base plate of barrel-shaped housing.
5. shield tunnel Water And Earth Pressures monitoring rod according to claim 2, it is characterized in that, the base plate of described dividing plate and barrel-shaped housing is equipped with for the hole through extraction wire, the hole place of the base plate of described barrel-shaped housing is sealed by epoxy resin (6).
6. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, described seal box (7) comprises sealing front cabinet (14) and sealing back box (12), described sealing front cabinet (14) is fixed on the built-in fitting (11) at grouting hole place, section of jurisdiction, described sealing back box (12) is screwed onto sealing front cabinet (14) outward, and the junction of described sealing front cabinet (14), sealing back box (12), the shaft-like barred body of cylindricality (4) is filled with butter packing (13).
7. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, the diameter of described end compartments (8) is more than or equal to the diameter of the shaft-like barred body of cylindricality (4).
8. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, described soil pressure sensor (1) is miniature soil pressure cell.
9. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, described pore water pressure sensor (2) is miniature pore pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520877888.7U CN205157084U (en) | 2015-11-05 | 2015-11-05 | Shield tunnel water and soil pressure monitoring stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520877888.7U CN205157084U (en) | 2015-11-05 | 2015-11-05 | Shield tunnel water and soil pressure monitoring stick |
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| Publication Number | Publication Date |
|---|---|
| CN205157084U true CN205157084U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520877888.7U Active CN205157084U (en) | 2015-11-05 | 2015-11-05 | Shield tunnel water and soil pressure monitoring stick |
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| CN (1) | CN205157084U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258824A (en) * | 2015-11-05 | 2016-01-20 | 白云 | Water and soil pressure monitoring rod for shield tunnel |
| CN109239188A (en) * | 2018-09-18 | 2019-01-18 | 天津大学 | A kind of bottom sediment ultrasonic device for measuring and its ultrasonic measurement method |
| CN110411646A (en) * | 2019-07-09 | 2019-11-05 | 中铁十四局集团大盾构工程有限公司 | Formation pore hydraulic pressure force test device, production method and its application method after a kind of shield tunnel wall |
| WO2021078195A1 (en) * | 2019-10-24 | 2021-04-29 | 中铁北京工程局集团城市轨道交通工程有限公司 | Monitoring meter installing device and installing method |
| CN113565529A (en) * | 2021-07-24 | 2021-10-29 | 郑州大学 | Rear-buried testing device and mounting method for frost heaving pressure of shield tunnel segment lining |
-
2015
- 2015-11-05 CN CN201520877888.7U patent/CN205157084U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258824A (en) * | 2015-11-05 | 2016-01-20 | 白云 | Water and soil pressure monitoring rod for shield tunnel |
| CN105258824B (en) * | 2015-11-05 | 2018-04-13 | 白云 | A kind of shield tunnel Water And Earth Pressures monitoring rod |
| CN109239188A (en) * | 2018-09-18 | 2019-01-18 | 天津大学 | A kind of bottom sediment ultrasonic device for measuring and its ultrasonic measurement method |
| CN110411646A (en) * | 2019-07-09 | 2019-11-05 | 中铁十四局集团大盾构工程有限公司 | Formation pore hydraulic pressure force test device, production method and its application method after a kind of shield tunnel wall |
| WO2021078195A1 (en) * | 2019-10-24 | 2021-04-29 | 中铁北京工程局集团城市轨道交通工程有限公司 | Monitoring meter installing device and installing method |
| CN113565529A (en) * | 2021-07-24 | 2021-10-29 | 郑州大学 | Rear-buried testing device and mounting method for frost heaving pressure of shield tunnel segment lining |
| CN113565529B (en) * | 2021-07-24 | 2023-10-27 | 郑州大学 | Rear buried type testing device for frost heaving pressure of segment lining and mounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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 |