Trestle settlement amount automatic measuring and observing device

Abstract

The utility model relates to an automatic measuring and observing device for settling volume of a trestle, an observation pillar is arranged on one side of the trestle, the observation pillar comprises two observation pillar steel pipe piles, the lower ends of the two observation pillar steel pipe piles are inserted into a riverbed, a cross beam is fixedly arranged between the upper ends of the two observation pillar steel pipe piles, a scale is vertically and fixedly arranged on the cross beam, and the scale is higher than the water level; a pointer is horizontally arranged on the portion, higher than the water surface, of one trestle steel pipe pile close to the observation pillar, one end of the pointer is fixedly welded to the trestle steel pipe pile, and the other end of the pointer is close to the scales on the ruler. The observation pillar does not bear load and does not settle along with settlement of the trestle, so that real-time settlement data of the trestle can be automatically measured through the scale pointer, and the measurement precision is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction and relates to a device for automatically measuring and observing the settlement of a trestle when a steel trestle is used as a temporary structure for water bridge construction. Background Art

[0002] When constructing underwater bridges, steel trestles are often built in the water as temporary passages for construction personnel, vehicles and mechanical equipment. The trestles usually use steel pipe piles as the lower support structure. The lower ends of the steel pipe piles are driven into the riverbed. Under the long-term load of vehicles and mechanical equipment, a certain degree of settlement will inevitably occur. When the settlement exceeds a certain range, it will affect the safety of the trestles. Therefore, the settlement of the trestles needs to be observed and recorded during the construction process.

[0003] The water level in the construction area is affected by tides and waves and fluctuates. Therefore, it is impossible to directly mark the scale on the steel pipe piles of the pier to observe the settlement of the pier. Usually, it can only be measured manually using a total station regularly (usually once a month). There are the following problems: First, regular measurements cannot obtain real-time settlement data of the pier; second, total station measurement requires at least two surveyors, which consumes manpower; third, manual operation of the measuring equipment will result in measurement errors and low accuracy. Summary of the invention

[0004] The utility model aims to solve the above problems and provide an automatic measurement and observation device for trestle settlement so as to obtain settlement data of trestle steel pipe piles in real time.

[0005] The technical solution of the utility model is as follows:

[0006] A device for automatically measuring and observing the settlement of a pier, wherein the pier adopts a plurality of pier steel pipe piles as the lower supporting structure, and the upper ends of the pier steel pipe piles are higher than the water level. The device is characterized in that: an observation pier is arranged on one side of the pier, and the observation pier comprises two observation pier steel pipe piles whose lower ends are inserted into the riverbed, a crossbeam is fixedly arranged between the upper ends of the two observation pier steel pipe piles, a scale is fixedly arranged vertically on the crossbeam, the scale is higher than the water level, and the scale is provided with scale graduations; a pointer is horizontally arranged on a portion of a pier steel pipe pile above the water surface near the observation pier, one end of the pointer is welded and fixed to the pier steel pipe pile, and the other end is close to the scale graduation on the scale.

[0007] The utility model arranges an independent observation pier on the outer side of the pier, a scale is arranged on the observation pier, and a pointer pointing to the scale of the observation pier is arranged on the steel pipe pile of the pier. The observation pier does not bear load and will not settle with the settlement of the pier. Therefore, the real-time settlement data of the pier can be automatically measured in real time through the scale pointer with high measurement accuracy; there is no need to separately equip measurement personnel, which can save labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the transverse bridge elevation structure of the utility model;

[0009] Figure 2 It is a schematic diagram of the plane structure of the observation pier. DETAILED DESCRIPTION

[0010] like Figure 1 , Figure 2 As shown, a pier 1 for underwater bridge construction uses multiple pier steel pipe piles 2 as the lower supporting structure, and the upper ends of the pier steel pipe piles 2 are higher than the water level; an observation pier is provided on one side of the pier, and the observation pier includes two observation pier steel pipe piles 3 with lower ends inserted into the riverbed, a crossbeam 4 is fixedly arranged between the upper ends of the two observation pier steel pipe piles 3, and a ruler 5 is vertically fixedly arranged on the crossbeam 4, the ruler is higher than the water level, and the ruler is provided with scale scales; a pointer 6 is horizontally arranged on a portion of a pier steel pipe pile 2 above the water surface near the observation pier, one end of the pointer 6 is welded and fixed to the pier steel pipe pile 2, and the other end is close to the scale scale on the ruler 5.

[0011] When the utility model is implemented, the crossbeam 4 of the observation pier can be welded between the upper ends of the steel pipe piles of the two observation piers using a section of steel, and the lower end of the scale 5 is welded to the steel crossbeam; the scale can be a steel plate with scale graduations marked on the steel plate using colored paint.

[0012] The pointer 6 is made of a section of steel bar; in order to ensure the welding firmness between the pointer and the pier steel pipe pile, a base can be welded at one end of the pointer 6, and the base is welded to the pier steel pipe pile; the base includes a base steel plate 7, one side of the base steel plate 7 is set as an arc surface, the arc surface of the base steel plate 7 is fully welded to the pier steel pipe pile 2, and four stiffening plates 8 are circumferentially equidistantly welded to the other side of the pointer 6 and the base steel plate 7.

[0013] The observation pier steel pipe pile 3 of the utility model can be driven into the riverbed by the driving equipment of the trestle steel pipe pile 2 during the construction of the trestle, and a crossbeam is welded between the upper ends of the two observation pier steel pipes. After the trestle construction is completed, a scale is set on the crossbeam and a pointer is welded on the trestle steel pipe pile.

[0014] like Figure 1 As shown, during the bridge construction, due to the passage of construction vehicles and machinery on the pier 1, the pier steel pipe piles 2 will have a certain amount of settlement, and the height of the pointer 6 welded on the pier steel pipe piles will also decrease with the settlement of the pier steel pipe piles. Since the observation pier steel pipe piles 3 do not bear vertical loads, they will not settle, so a relative displacement will occur between the pointer 6 and the scale 5. Figure 1The pointer 6 shown by the solid line is the initial position of the pointer, which is recorded before construction; the pointer 6 shown by the dotted line is the position of the pointer after the pier has settled. During construction, by observing the position of the pointer and comparing it with the initial position, the settlement of the pier 1 can be grasped at any time, which is convenient for timely evaluation of the safety status of the pier.

Claims

1. An automatic measurement and observation device for pier settlement, wherein the pier adopts a plurality of pier steel pipe piles as the lower support structure, and the upper ends of the pier steel pipe piles are higher than the water level, characterized in that: An observation pier is provided on one side of the pier, and the observation pier includes two observation pier steel pipe piles whose lower ends are inserted into the riverbed, a crossbeam is fixedly arranged between the upper ends of the two observation pier steel pipe piles, and a ruler is vertically fixedly arranged on the crossbeam, the ruler is higher than the water level, and the ruler is provided with scale scale; a pointer is horizontally arranged on a part of a pier steel pipe pile above the water surface close to the observation pier, one end of the pointer is welded and fixed to the pier steel pipe pile, and the other end is close to the scale scale on the ruler.

2. The automatic measurement and observation device for pier settlement according to claim 1 is characterized in that: The crossbeam is welded between the upper ends of the steel pipe piles of the two observation piers by using steel sections, and the lower end of the ruler is welded to the crossbeam.

3. The automatic measurement and observation device for pier settlement according to claim 1 is characterized in that: The pointer is made of a section of steel bar, one end of which is welded with a base, and the base is welded on the steel pipe pile of the trestle.

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