Cross-shaped combined measuring ruler for checking deviation between burying of pile casing and in-position of drilling machine on hole working plane
By designing a cross combination measuring ruler, the sliding mechanism and support rod structure correspond to the earth coordinate axis, the measurement problem of the position deviation of the guard casing and the drilling rig during drilling pile construction is solved, and efficient and accurate deviation correction effect is achieved to ensure that The construction is in compliance with the specifications.
Patent Information
- Application Number
- CN202421136775.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-23
AI Technical Summary
In the construction of drilling piles, the casing is not easy to be stable when buried, and the drilling rig and the casing are prone to position deviation. The existing measurement and deviation correction methods include the risk of personnel falling in the air, unstable setting of observation targets, large errors, and poor correction effect. question.
Design a cross-combination measure for the hole operation surface verification of the burial and the drilling rig position deviation, including the X horizontal axis ruler, the Y vertical axis ruler, the observation reading end, the compass and the circular level bubble, through the sliding mechanism and support The rod structure ensures that the cross-combination ruler axis corresponds to the earth coordinate axis, and uses a total station to measure and adjust the deviation to achieve accurate correction.
It effectively reduces the risk of operators, improves measurement accuracy and deviation correction effect, ensures that the center axis of the pile after the hole is deviated, inclination and thickness of the steel cage protective layer comply with the design specifications, and improves working efficiency.
Smart Images
Figure CN222298668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a measuring tool for bored pile construction, in particular to a cross-combined measuring ruler for checking casing embedding and drilling machine positioning deviation on a hole working surface, belonging to the technical field of building construction measuring equipment. Background Art
[0002] The construction process of bored cast-in-place piles is generally: site leveling - measurement and setting out - drilling rig in place - casing buried - drilling - steel cage production and installation - pouring concrete. When bored cast-in-place piles are used in areas with thick gravel cover, the casing is not easy to be stable when buried, and the drilling rig and casing are easily offset due to construction vibration during the drilling process. Therefore, the drilling process control and post-hole acceptance should strengthen the re-measurement and verification of the center point of the pile foundation, and check whether the deviation status of the casing buried and the drilling rig in place meets the construction requirements based on the center point of the pile foundation, and correct the deviation in time to ensure that the deviation and inclination of the center axis of the pile after the hole is formed, as well as the thickness of the protective layer of the steel cage, meet the design specification requirements.
[0003] In view of the above situation, the general conventional measurement correction method is to use bamboo and wooden boards to lay a temporary measurement platform on the top of the casing hole, and the staff will set up the observation target and mark the points on the temporary measurement platform. However, the whole operation process is prone to falling from the air, and the operation near the edge hole is highly dangerous. In addition, the observation target is not stable, and the centering error is large. At the same time, the point storage is prone to contact and displacement, which ultimately leads to large errors in the measurement results and poor correction effect. Utility Model Content
[0004] The utility model aims to provide a cross combination measuring ruler which is simple in structure, convenient in operation, accurate in measurement and good in deviation correction effect and can be used for checking casing embedding and drilling rig positioning deviation on a hole working surface.
[0005] The utility model is realized through the following technical solutions:
[0006] A cross combination ruler for checking casing burial and drilling rig positioning deviation on a tunnel opening working surface comprises a casing, an X-axis ruler, a Y-axis ruler, an observation reading end, a compass and a circular level bubble; the two ends of the X-axis ruler are horizontally fixedly supported on the casing mouth through a support; the Y-axis ruler is slidably supported above the X-axis ruler through a sliding mechanism, the Y-axis ruler and the X-axis ruler are perpendicular to each other, and the two are combined into a cross ruler, and the zero value in the middle of the X-axis ruler, the zero value in the middle of the Y-axis ruler and the center of the casing coincide; the observation reading end is slidably supported on one end of the Y-axis ruler; the compass and the circular level bubble are respectively arranged on the two ends of the X-axis ruler.
[0007] The purpose of the utility model can be further achieved by the following technical measures.
[0008] The aforementioned cross-combination measuring ruler for checking casing burial and drilling rig positioning deviation at the opening working surface, wherein the observation reading end described therein comprises a support rod and a prism, the slide groove at the bottom of the support rod is slidably connected to the Y longitudinal axis ruler, and the top of the support rod is threadedly connected to the bottom of the prism.
[0009] The aforementioned cross-combination measuring ruler for checking casing burial and drilling rig positioning deviation at the opening working surface has the X-axis ruler having a length twice the Y-axis ruler.
[0010] The above-mentioned cross-combination measuring ruler for checking the casing burial and drilling rig positioning deviation on the opening working surface, wherein the lower slot of the support described therein is fixedly supported on the casing mouth, and one end of the X-axis ruler is fixedly supported on the upper slot of the support, and the depth of the upper slot is 1.5 times the thickness of the X-axis ruler.
[0011] The aforementioned cross-combination measuring scale for checking casing burial and drilling rig positioning deviation on the opening working surface, wherein the sliding mechanism described therein is fixed at the bottom of the Y longitudinal axis scale, corresponding to the zero value position of the Y longitudinal axis scale; the sliding mechanism includes a sliding seat and several sections of support rods, the sliding seat is slidably supported on the X transverse axis scale, and a reading slot is provided on one side of the sliding seat; the several sections of support rods are fixedly connected to each other, the bottom of the lower support rod is fixedly connected to the top of the sliding seat, and the top of the upper support rod is fixedly connected to the bottom of the Y longitudinal axis scale.
[0012] The utility model temporarily installs and fixes the X-axis ruler along the north direction with the casing wall to ensure that the cross combination ruler axis corresponds to the geodetic coordinate axis, and measures the actual plane coordinates of the observation reading end through the conventional total station polar coordinate method, and then calculates the difference between the actual value of the plane coordinates of the observation reading end and the design value of the pile foundation center. According to the corresponding relationship between the difference and the cross combination ruler axis, the cross combination ruler is adjusted to make the observation reading end coincide with the pile foundation center, eliminate the error, and correct the casing burial and drilling rig positioning deviation. The utility model is not only simple in structure, convenient in operation, and low in cost, but also can effectively reduce the risk of operators falling from the air, and the installation is stable and reliable, the centering error is small, the measurement is accurate, and the correction effect is good. At the same time, the observation reading end can be directly used as the target measurement point marking object, avoiding the non-coincidence error caused by re-marking the point position, and finally effectively ensuring that the deviation, inclination, and protective layer thickness of the pile center axis after the hole are met. The requirements of the design specification. In addition, the placement orientation of the utility model corresponds to the geodetic coordinate system axis, which improves the positioning efficiency of the target measurement point and has high work efficiency.
[0013] Advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments, which are given as examples only with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 yes Figure 1 A top view of
[0016] Figure 3 yes Figure 1 Right view of . DETAILED DESCRIPTION
[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0018] The utility model is limited to the horizontal hole working surface, and the diameter of the hole working surface should not be greater than 2m.
[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model comprises a casing 1, an X-axis ruler 2, a Y-axis ruler 3, an observation reading end 4, a compass 5 and a circular level bubble 6. The length of the X-axis ruler 2 is twice the length of the Y-axis ruler 3. Both ends of the X-axis ruler 2 are horizontally fixed and supported on the tube mouth of the casing 1 through a support 7. The Y-axis ruler 3 is slidably supported above the X-axis ruler 2 through a sliding mechanism 8. The Y-axis ruler 3 and the X-axis ruler 2 are perpendicular to each other. The two are combined into a cross ruler. The zero value in the middle of the X-axis ruler 2, the zero value in the middle of the Y-axis ruler 3 and the center of the casing 1 coincide. The observation reading end 4 is slidably supported on one end of the Y-axis ruler 3. The observation reading end 4 comprises a support rod 41 and a prism 42. The slide groove 43 at the bottom of the support rod 41 is slidably connected to the Y-axis ruler 3. A reading slit is provided on one side of the slide groove 43. The top of the support rod 41 is threadedly connected to the bottom of the prism 42. The compass 5 and the circular level bubble 6 are respectively arranged on both ends of the X-axis ruler 2. The compass 5 is used to adjust the axis of the X-axis ruler 2 to be parallel to the north direction to ensure the correspondence between the axis of the cross combination ruler and the axis direction of the geodetic coordinate system. The circular level bubble 6 is used to level the reading surface of the X-axis ruler 2.
[0020] The lower notch 71 of the support 7 is supported on the tube mouth of the casing 1, and one end of the X-axis ruler 2 is supported on the upper notch 72 of the support 7. The lower notch 71 of the support 7 and one end of the X-axis ruler 2 are fastened by a set screw 73. The depth of the upper notch 72 is 1.5 times the thickness of the X-axis ruler 2, which is convenient for adjusting the level of the X-axis ruler 2. The X-axis ruler 2, the Y-axis ruler 3, and the support 7 are all made of light and hard metal structure materials, which are not easy to rust or deform.
[0021] The sliding mechanism 8 is fixed at the bottom of the Y longitudinal axis ruler 3, corresponding to the zero value position of the Y longitudinal axis ruler 3. The sliding mechanism 8 includes a slide 81 and two support rods 82. The slide 81 is slidably supported on the X transverse axis ruler 2, and a reading slit 83 is provided on one side of the slide 81. The two support rods 82 are fixedly connected to each other, the bottom of the lower support rod 82 is threadedly connected to the screw head at the top of the slide 81, and the screw head at the top is threadedly connected to the bottom of the upper support rod 82. The top of the upper support rod 82 is welded and fixedly connected to the bottom of the Y longitudinal axis ruler 3. The height of the Y longitudinal axis ruler 3 can be adjusted by increasing or decreasing the number of support rods 82.
[0022] The measurement process of the utility model is as follows:
[0023] 1) Measurement
[0024] First, the utility model is returned to the initial state, that is, the zero value of the X-axis ruler 2, the zero value of the Y-axis ruler 3 and the observation reading end 4 are basically coincident; then, according to the approximate position of the center of the compass 5 and the casing 1, the relative position of the utility model and the casing 1 is adjusted so that the cross combination ruler axis and the geodetic coordinate axis are basically corresponding, and the observation reading end 4 and the center of the casing 1 are basically consistent; the cross combination ruler is adjusted to the level by the circular level bubble 6, and is tightened and fixed so that the cross combination ruler is firmly fixed to the casing wall; finally, the total station is used to measure the actual measured value of the plane A at the observation reading end 4 position as (X A , Y A ), if the design value of the pile foundation center plane B is (X B , Y B ), then the error (△X, △Y) of the target position B plane is:
[0025] △X=(X B —X A );△Y=(Y B —Y A )
[0026] 2) Point marking
[0027] Loosen the set screws, take out the cross combination ruler steadily, and read the ruler in a safe place. According to the error value (△X, △Y), first adjust the value of the X-axis ruler 2, then adjust the value of the Y-axis ruler 3, eliminate the error, and make the observation reading end 4 located at the target position B. Finally, re-install the cross combination ruler on the casing wall according to the original position, and re-measure the plane position of the observation reading end 4. If the difference with the pile center point design is within the allowable error range, it can be used as the reference point for the casing burial and drilling rig positioning deviation verification.
[0028] In addition to the above-mentioned embodiments, the present invention may also have other implementation modes. Any technical solutions formed by equivalent replacement or equivalent transformation shall fall within the protection scope required by the present invention.
Claims
1. A cross-combined measuring ruler for checking casing embedding and drilling rig positioning deviation at the working surface of a tunnel, characterized by: The utility model comprises a casing, an X-axis ruler, a Y-axis ruler, an observation reading end, a compass and a circular level bubble; the two ends of the X-axis ruler are horizontally fixed and supported on the casing mouth through a support; the Y-axis ruler is slidably supported above the X-axis ruler through a sliding mechanism, the Y-axis ruler and the X-axis ruler are perpendicular to each other, and the two are combined into a cross ruler, and the zero value in the middle of the X-axis ruler, the zero value in the middle of the Y-axis ruler and the center of the casing coincide with each other; the observation reading end is slidably supported on one end of the Y-axis ruler; the compass and the circular level bubble are respectively arranged on the two ends of the X-axis ruler.
2. The cross-combined measuring ruler for checking casing embedding and drilling rig positioning deviation at the opening working surface as claimed in claim 1 is characterized by: The observation reading end comprises a support rod and a prism, a slide groove at the bottom of the support rod is slidably connected to the Y longitudinal axis ruler, and the top of the support rod is threadedly connected to the bottom of the prism.
3. The cross-combined measuring ruler for checking casing embedding and drilling rig positioning deviation at the opening working surface as claimed in claim 1 is characterized by: The length of the X-axis ruler is twice the length of the Y-axis ruler.
4. The cross-combined measuring ruler for checking casing embedding and drilling rig positioning deviation at the opening working surface as claimed in claim 1 is characterized by: The lower notch of the support is fixedly supported on the mouth of the casing, and one end of the X-axis ruler is fixedly supported on the upper notch of the support, and the depth of the upper notch is 1.5 times the thickness of the X-axis ruler.
5. The cross-combined measuring ruler for checking casing embedding and drilling rig positioning deviation at the opening working surface as claimed in claim 1, characterized in that: The sliding mechanism is fixed at the bottom of the Y longitudinal axis ruler, corresponding to the zero value position of the Y longitudinal axis ruler; the sliding mechanism includes a slide and several support rods, the slide is slidably supported on the X transverse axis ruler, and a reading slot is provided on one side of the slide; the several support rods are fixedly connected to each other, the bottom of the lower support rod is fixedly connected to the top of the slide, and the top of the upper support rod is fixedly connected to the bottom of the Y longitudinal axis ruler.