CN204479063U - A kind of tunnel survey equipment - Google Patents

Abstract

The utility model discloses a tunnel measurement device. The device comprises a measurement record main body. The measurement record main body is provided with a positioning mechanism, a measurement mechanism and a recording mechanism. The positioning mechanism is vertically arranged on the top of the measurement record main body. The positioning mechanism, the measuring mechanism and the recording mechanism are set along the same straight line in turn; the positioning mechanism determines the placement position of the equipment on the tunnel road surface, and the measuring mechanism uses the vault measuring point of the tunnel as a reference to measure the convergent measuring points around the tunnel Positioning, the recording mechanism records the positions of the top measuring point and the surrounding convergence measuring point positioned by the measuring mechanism; the measuring device of the present utility model can effectively solve the problems of tunnel damage and inaccurate measurement, and at the same time, the device is small and exquisite, It is easy to carry, easy to operate, low in cost, and convenient in data processing.

Description

A tunnel measuring device

technical field

The utility model belongs to the field of tunnel construction monitoring and measuring, in particular to a tunnel measuring device.

Background technique

In traditional monitoring and measurement, the settlement of the vault is usually measured around the convergence of a section. A measuring pile with a hook is installed at the axis of the vault to hang the steel tape, and the absolute settlement of the tunnel vault is measured with a precision level. Convergence is the relative displacement value on the line connecting two fixed points in opposite directions around the tunnel. It is the most intuitive manifestation of the surrounding rock deformation caused by tunnel excavation. It is measured by a convergence meter. After the tunnel is excavated and broken, measure rods or ball-end test piles are buried in the horizontal direction of the side walls and arch waist on both sides of the tunnel. In the method, both vault settlement and convergence observation need to bury points with hooks to realize the observation. When performing vault settlement observation, because the tunnel usually has a clearance height of about 8 meters before the lining, it is difficult to hang the tape measure on it during observation. In addition, tunnel construction will generally encounter more groundwater, which will cause more mud in the tunnel in the early stage, which will affect the accuracy of the turning point of the level gauge, and factors such as deformation of the steel tape, stress, and different hook positions will also affect the observation accuracy. Similarly For convergence observation, when the tunnel is excavated by steps, the observation needs to be started when the first step is excavated. After the lower step is dug out, the convergence meter cannot be hung on the measuring point without the help of mechanical equipment. Embarrassment, at the same time because the ruler of the convergent meter is affected by gravity and sagging and the influence of force, the precision is not enough to accurately analyze the result of the surrounding rock situation.

In particular, the destruction of the surrounding convergence measurement points is serious. The measurement points are often destroyed, which is not conducive to data collection and data integrity. At the same time, there are disadvantages in the traditional use of convergence instruments or total stations. It takes two people to cooperate, and the data error is also relatively large. Using a total station, the instrument is bulky and expensive, and the cost is high.

The purpose of on-site monitoring and measurement: it is an important means to monitor the stability of surrounding rocks and check whether the design and construction are reasonable and safe, and it is an important part of the new Austrian method of construction. Feedback the measurement information to the design and construction in time, and make corrections to the construction methods of primary support and secondary lining, so as to achieve safe and rapid construction. Monitoring and measurement is also an important link in construction management, and it is the guarantee of construction safety and quality.

Contents of the invention

Aiming at the defects and deficiencies of the prior art, the utility model solves the problem that the convergent measuring points around the tunnel are easily damaged when the tunnel data is measured, thereby providing a tunnel measuring device with simple measurement.

In order to solve the problems referred to above, the technical scheme that the utility model takes is:

A tunnel measurement device, the device includes a measurement record body, the measurement record body is provided with a positioning mechanism, a measurement mechanism and a recording mechanism, the positioning mechanism is arranged on the top of the measurement record body along the vertical direction, the positioning mechanism, the measurement mechanism and the recording mechanism are arranged along the same straight line in sequence;

The positioning mechanism determines the placement position of the device on the tunnel road surface, the measuring mechanism locates the convergent measuring point around the tunnel with the vault measuring point of the tunnel as the reference, and the recording mechanism records the top position of the measuring mechanism. The location of the survey point and surrounding convergent survey points.

Specifically, the positioning mechanism includes a first light emitter vertically arranged on the top of the measurement and recording body, and the light spot of the first light emitter can vertically coincide with the tunnel vault measuring point.

More specifically, the measuring mechanism includes a second light emitter, a third light emitter and a fourth light emitter, and the light spot emitted by the second light emitter can coincide with the tunnel arch of the light spot of the first light emitter. The vault measurement point adjacent to the top measurement point coincides, the light spot emitted by the third light emitter can coincide with the convergence measurement point to be measured on one side of the tunnel, and the light spot of the fourth light emitter can coincide with the other side of the tunnel. The convergence measuring points around the to-be-measured coincide.

In addition, an adjusting rod is arranged at the bottom of the measuring mechanism, and the adjusting rod is arranged along a direction perpendicular to the positioning mechanism.

Further, the recording mechanism is a camera.

Further, the device also includes a support base and a turntable, the measurement recording body is placed on the turntable, the turntable is installed on the support base, and the measurement recording body can perform horizontal circular motion through the turntable.

Compared with the prior art, the utility model has the following advantages:

(1) Through the long-distance transmission of light, the utility model uses the positional relationship between the tunnel vault measuring point and the surrounding convergence measuring point to set up each light source, and records the position of the light spot of the light source through photos to realize the tunnel vault. Distance measurement of measuring points and surrounding convergent measuring points;

(2) The above problems can be effectively solved by adopting tunnel vault sinking and peripheral convergence measurement system. Simultaneously, the instrument and equipment of the utility model are small and exquisite, easy to carry, easy to operate, low in cost, and convenient in data processing.

Description of drawings

Fig. 1 is the front view of the measuring equipment around the vault of the utility model;

Fig. 2 is the plan view of the measuring equipment around the vault of the utility model;

Fig. 3 is the back view of the measuring equipment around the vault of the utility model;

Fig. 4 is the mathematical model simulation figure among the embodiment two;

Fig. 5 is the mathematical model simulation figure among the embodiment two;

Fig. 6 is the actual one-time measurement simulation recording figure in embodiment three;

Fig. 7 is the actual secondary measurement simulation recording figure in embodiment three;

The symbols in the figure are represented as: 1-measuring recording body, 101-positioning mechanism, 1011-first light emitter, 102-measurement mechanism, 1021-second light emitter, 1022-third light emitter, 1023-the first Four light emitters, 103-recording mechanism, 104-operating screen, 105-adjusting lever, 2-support seat, 201-turntable;

The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments.

Detailed ways

The tunnel measuring equipment of the present utility model comprises a measuring and recording main body, which is provided with a positioning mechanism, a measuring mechanism and a recording mechanism. The positioning mechanism determines the placement position of the equipment on the road surface of the tunnel. The benchmark locates the convergent measuring points around the tunnel, and the recording mechanism records the positions of the top measuring point and the surrounding convergent measuring point positioned by the measuring mechanism; through the cooperation of the three steps of positioning, measuring and recording, when only one vault measuring point needs to be determined , that is, the measurement data of the surrounding convergence measurement points can be obtained, the operation is convenient and the data is accurate.

The positioning mechanism includes a first light emitter vertically arranged on the top of the measurement and recording body, and the light spot of the first light emitter can coincide with the tunnel vault measuring point in the vertical direction, and the emitted light is aligned with the vault measuring point to be measured. The measurement points of the adjacent vaults coincide to determine the location of the equipment and prepare for the next measurement data.

The measuring mechanism includes a second light emitter, a third light emitter and a fourth light emitter. The light spot emitted by the second light emitter can overlap with the tunnel vault measuring point adjacent to the first light emitter. The measuring points of the vault are coincident, the light spot emitted by the third light emitter can coincide with the convergent measuring point of the surrounding area to be measured on one side of the tunnel, and the light spot of the fourth light emitter can coincide with the convergent measuring point of the surrounding area to be measured on the other side of the tunnel Overlapping, positioning the vault measuring point to be measured by the light spot emitted by the second light emitter, and setting the mutual fixed angles of the second light emitter, the third light emitter and the fourth light emitter, The third light emitter and the fourth light emitter automatically hit the surrounding convergent measuring points to be measured to realize positioning and measurement.

An adjusting rod is arranged at the bottom of the measuring mechanism, and the adjusting rod is set along a direction perpendicular to the positioning mechanism. By turning the adjusting rod, the position of the measuring mechanism can be adjusted to realize the positioning of the vault measuring point.

The recording mechanism of this equipment can be selected as a camera, and cameras with different resolutions can be selected according to different tunnel sizes, so as to record the spot image of the vault measurement point and the surrounding convergence points.

The device also includes a support seat and a turntable. The measurement record body is placed on the turntable, and the turntable is installed on the support seat. The measurement record body can perform horizontal circular motion through the turntable to realize the adjustment of the measurement direction.

The first light emitter, the second light emitter, the third light emitter and the fourth light emitter of the present utility model can emit red visible light, and the light is irradiated on the structure in a point shape; the above light emitter can adopt Electroactive lasers.

Peripheral convergence measuring points described in the utility model: convergence is the relative displacement value on the line connecting two fixed points in relative directions around the tunnel, which is the most intuitive expression of surrounding rock deformation caused by tunnel excavation, and is measured by a convergence meter . After tunnel excavation and blasting, a pair of measuring rods or ball-end measuring piles are buried horizontally on both side walls and arch waist of the tunnel. These two buried points are the convergence measuring points.

Vault measuring point described in the utility model: that is, the measuring point of the vault, the sinking of the vault is usually measured at the axis of the vault of a section in the periphery, and a measuring pile with a hook is set to hang a steel tape measure. The level gauge measures the absolute subsidence of the tunnel vault, and the position of the measuring pile is the vault measurement point.

Embodiment one:

1-3, the tunnel surveying equipment of this embodiment includes a measurement recording main body 1 and a support seat 2. The measurement recording main body 1 looks like a camera-like structure in overall appearance, and a positioning mechanism 101 and a measuring mechanism 102 are arranged on it. And recording mechanism 103, positioning mechanism 101 is arranged on the top of measuring and recording main body 1, and recording mechanism 103 is arranged on the side of measuring and recording main body 1, and measuring mechanism 102 is arranged on the slope between positioning mechanism 101 and recording mechanism 103; 101 Determine the placement position of the device on the tunnel road surface, the measuring mechanism 102 locates the convergent measuring points around the tunnel based on the top measuring point of the tunnel, and the recording mechanism 103 locates the distance between the top measuring point positioned by the measuring mechanism and the surrounding convergent measuring points data recording;

The positioning mechanism 101 includes a first light emitter 1011 arranged on the top of the measurement and recording body 1, the light emitted by the first light emitter 1011 is perpendicular to the horizontal plane, and the light spot of the first light emitter 1011 can coincide with the measuring point on the top of the tunnel. The optical transmitter 1011 is an electrically excited laser, its model is FU650AD50-GD16, wavelength: 650nm, power: 50mW, power supply voltage: DC 2.8-5.2 (V), working current: ≤120mA;

The measurement mechanism 102 includes a second light emitter 1021, a third light emitter 1022 and a fourth light emitter 1023 arranged on the front of the measurement recording body 1, and the light spot of the second light emitter 1021 can be compared with the first light emitter 1011 The tunnel vault measuring point where the light spot coincides with the adjacent vault measuring point to be measured coincides, the light spot of the third light emitter 1022 can coincide with the convergence measuring point to be measured on one side of the tunnel, and the light spot of the fourth light emitter 1023 It can coincide with the convergent measurement point to be measured on the other side of the tunnel. The second light emitter 1021, the third light emitter 1022 and the fourth light emitter 1023 are electro-excited lasers, and its specific model is FU650AD50-GD16 wavelength: 650nm, power: 50mW, power supply voltage: DC 2.8-5.2(V), working current: ≤120mA;

The bottom of the measuring mechanism 102 is provided with an adjusting rod 105, and the adjusting rod 105 is arranged in a direction perpendicular to the positioning mechanism 101; the position adjustment of the measuring mechanism 102 can be carried out by rotating the adjusting rod 105;

The recording mechanism 103 is a camera, and an operation screen 104 is set on the surface opposite to the recording mechanism 103 of the measurement and recording body 1, which is convenient for the operator to adjust the device. In the horizontal state, the measurement and recording main body 1 is placed on the turntable 201 , and the turntable 201 is installed on the support base 2 , and the measurement and recording main body 1 can perform horizontal circular motion through the turntable 201 .

Embodiment two:

Combining Figures 4 and 5, point A represents the vault measuring point, points B and C represent a pair of peripheral convergence measuring points, and point O represents the light emitted by the second light emitter, the third light emitter and the fourth light emitter The intersection point of the reverse extension lines, point M represents the starting point of the first light emitter, and D represents the spot position of the first light emitter hitting the vault of the tunnel, which is one of the vault measuring points used to locate the placement position of the device. point;

The three points A, B, and C form an isosceles triangle, the height AH intersects BC at point H, the triangle height AH=h, the three line segments AO, BO, and CO intersect at point O, and the distance between point O and the ground is n;

Assume that three points O, M, and D are on a straight line, and the distance between two adjacent vault measurement points is a; the tunnel width BC is b; the lengths of AB and AC are respectively c;

According to the Pythagorean theorem and the calculation of trigonometric functions, ∠AOB, ∠AOC, ∠BOC can be calculated by formula (1) and formula (2):

$<span\; class="notranslate">\; \&angle;</span>\mathrm{<span\; class="notranslate">\; BOC</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; Arc</span>}\mathrm{<span\; class="notranslate">\; cos</span>}\frac{\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; a</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; b</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 4</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; no</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; a</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; b</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; no</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$

$<span\; class="notranslate">\; \&angle;</span>\mathrm{<span\; class="notranslate">\; AOB</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; \&angle;</span>\mathrm{<span\; class="notranslate">\; AOC</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; Arc</span>}\mathrm{<span\; class="notranslate">\; cos</span>}\frac{{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; no</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; hn</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; a</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; b</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 4</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; c</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}\sqrt{<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; a</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; no</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; b</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 4</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&times;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; h</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; no</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; hn</span>}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; a</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; )</span>$

According to the specific tunnel size, the angle relationship among the three light sources in the measuring component of the device of the present invention can be obtained, and corresponding adjustments can be made to obtain measuring devices for different tunnels.

Embodiment three:

Combining Figures 6 and 7, assuming that the design width of a certain tunnel is 500mm and the design height is 300mm, Figure 6 is the photo recorded during the first measurement, and Figure 7 is the photo recorded during the second measurement; and the photos obtained by the second measurement are imported into the SketchUp software, and the data in Fig. 6 and Fig. 7 are obtained after annotation processing;

Calculation of perimeter convergence: the first time the perimeter convergence mark data is 46078.0mm, and the actual design width is 500mm; the second photoshoot data is 45928.0mm, then the actual value of perimeter convergence can be calculated by using the above principle:

$<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; -</span>\frac{\mathrm{<span\; class="notranslate">\; 45928.0</span>}}{\mathrm{<span\; class="notranslate">\; 46078.0</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&times;</span>\mathrm{<span\; class="notranslate">\; 500</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1.628</span>}\mathrm{<span\; class="notranslate">\; mm</span>}$

It can be seen from the calculation results that the measurement result of the peripheral convergence is 1.628mm, that is, the tunnel has shrunk inward by 1.628mm compared to the last time.

Calculation of vault sinking: Use the Pythagorean theorem to calculate the vault sinking value. The vault sinking marked data for the first photo is 42775.3mm, and the actual design height is 300mm; the data for the second photo is 42620.1mm, and the above principle can be used Convert the actual value of the vault sinking:

$<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; -</span>\frac{\sqrt{<span\; class="notranslate">\; [</span>{\mathrm{<span\; class="notranslate">\; 42775.3</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>{<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; 46078.0</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span>}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ]</span>}}{\sqrt{<span\; class="notranslate">\; [</span>{\mathrm{<span\; class="notranslate">\; 42620.1</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>{<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; 45928.0</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span>}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ]</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&times;</span>\mathrm{<span\; class="notranslate">\; 300</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; -</span>\frac{\mathrm{<span\; class="notranslate">\; 35904.424</span>}}{\mathrm{<span\; class="notranslate">\; 36040.682</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&times;</span>\mathrm{<span\; class="notranslate">\; 300</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1.134</span>}\mathrm{<span\; class="notranslate">\; mm</span>}$

It can be seen from the calculation results that the measured result of the vault sinking is 1.134mm, that is, the tunnel has sunk 1.134mm lower than the previous time.

The method that measuring equipment described in the utility model is used in the tunnel is as follows:

(1) Place the device near the position of the vault measurement point to be measured, start the instrument, level the instrument, and use the light spot emitted by the first light transmitter 1011 to measure the vault adjacent to the vault measurement point to be measured The points coincide to lock the placement position of the device;

(2) Turn on the measuring member 102 so that the light spot emitted by the second light emitter 1021 coincides with the measuring point of the vault to be measured, and at this moment the third light emitter 1022 and the fourth light emitter 1023 are automatically aligned to both sides of the tunnel The surrounding convergence measuring points to be measured, and then the light spot photos of the vault measuring points to be tested and the surrounding convergence measuring points are taken by the recording mechanism 103. data records;

(3) Use SketchUp and Excel to collect and organize data on the computer.

Claims (6)

1. a tunnel survey equipment, it is characterized in that, this equipment comprises survey record main body (1), described survey record main body (1) is provided with detent mechanism (101), measuring mechanism (102) and recording mechanism (103), detent mechanism (101) is vertically arranged on the top of survey record main body (1), and detent mechanism (101), measuring mechanism (102) and recording mechanism (103) are arranged along same straight line successively;

The placement location of this equipment on tunnel road surface determined by described detent mechanism (101), described measuring mechanism (102) with the vault measuring point in tunnel for benchmark carries out the location of tunnel perimeter convergence measuring point, the position of the top measuring point that described recording mechanism (103) record measuring mechanism (102) is located and perimeter convergence measuring point.

2. tunnel survey equipment as claimed in claim 1, it is characterized in that, described detent mechanism (101) comprises the first optical transmitting set (1011) being vertically set on survey record main body (1) top, and the hot spot of the first optical transmitting set (1011) can vertically overlap with tunnel vault measuring point.

3. tunnel survey equipment as claimed in claim 2, it is characterized in that, described measuring mechanism (102) comprises the second optical transmitting set (1021), 3rd optical transmitting set (1022) and the 4th optical transmitting set (1023), the vault measuring point to be measured that the tunnel vault measuring point that the light hot spot that second optical transmitting set (1021) is launched can overlap with the first optical transmitting set (1011) hot spot is adjacent overlaps, the light hot spot that 3rd optical transmitting set (1022) is launched can overlap with the perimeter convergence measuring point to be measured of side, tunnel, the hot spot of the 4th optical transmitting set (1023) can overlap with the perimeter convergence measuring point to be measured of tunnel opposite side.

4. the tunnel survey equipment as described in claim 1,2 or 3, it is characterized in that, the bottom of described measuring mechanism (102) arranges adjuster bar (105), and adjuster bar (105) is arranged along the direction perpendicular to detent mechanism (101).

5. the tunnel survey equipment as described in claim 1,2 or 3, is characterized in that, described recording mechanism (103) is camera.

6. the tunnel survey equipment as described in claim 1,2 or 3, it is characterized in that, this equipment also comprises supporting seat (2) and rotating disk (201), described survey record main body (1) is placed on rotating disk (201), rotating disk (201) is arranged on supporting seat (2), and survey record main body (1) can carry out the circular motion of level by rotating disk (201).