Press-in type open caisson automatic pressure control device

Abstract

The utility model relates to a press-in type open caisson automatic pressure control device which comprises a main barrel body, a center penetrating jack, an upper anchorage device, a lower anchorage device and an automatic control system, a base is fixedly installed at the bottom of the main barrel body, a steel strand penetrates through the center of the base, the lower anchorage device is installed on the base, and a lower anchorage oil cylinder is arranged on the lower anchorage device. The lower anchorage device is connected with the lower anchorage oil cylinder through a hydraulic pipeline; an upper anchoring oil cylinder is arranged at the top of the main barrel, an upper anchorage device is arranged on the lower portion of the upper anchoring oil cylinder, and the upper anchorage device is connected with the upper anchoring oil cylinder through a hydraulic pipeline; the center-penetrating jack is arranged in the center of the interior of the main barrel body and is supported between the upper anchorage device and the lower anchorage oil cylinder; the steel strand is anchored by the upper anchorage device and the lower anchorage device; the upper anchoring oil cylinder, the lower anchoring oil cylinder and the center hole jack are in signal connection with an automatic control system, and the automatic control system controls output of the upper anchoring oil cylinder, the lower anchoring oil cylinder and the center hole jack. According to the utility model, real-time and comprehensive monitoring, regulation and control of pressure can be realized, and the construction safety, timeliness and accuracy are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, especially a kind of automatic pressure control device of pressed-in type open caisson. BACKGROUND

[0002] In building engineering, open caisson construction has been a widely used foundation construction method. Open caisson construction is mainly through making an well-tube-shaped structure in ground or foundation pit, and then making it gradually sink to the predetermined position by relying on its own gravity, so as to provide stable foundation support for building or structure. However, the traditional open caisson construction always faces a thorny problem in the key operation process of pressing in, that is, it is difficult to accurately control the pressure. Uneven sinking will lead to uneven stress of open caisson structure, making local stress too large, which not only affects the structural stability of open caisson itself, but also may cause great safety hazards to subsequent engineering construction.

[0003] In the process of open caisson sinking, the existing device cannot realize real-time and comprehensive monitoring and control, which makes it difficult to discover and take effective measures in time once a problem occurs in the process of open caisson construction, thereby further increasing the engineering risk. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of automatic pressure control device of pressed-in type open caisson to solve the above technical problems.

[0005] To solve the above technical problems, the utility model provides a kind of automatic pressure control device of pressed-in type open caisson, including main cylinder, through core jack, upper anchor tool, lower anchor tool and automatic control system,

[0006] The bottom of the main cylinder is fixedly installed with a base, a steel strand is provided in the center of the base, a lower anchor tool is installed on the base, a lower anchor cylinder is provided on the lower anchor tool, and the lower anchor tool and the lower anchor cylinder are connected by hydraulic pipeline;

[0007] The top of the main cylinder is provided with an upper anchor cylinder, the upper anchor tool is provided on the lower part of the upper anchor cylinder, and the upper anchor tool and the upper anchor cylinder are connected by hydraulic pipeline;

[0008] The through core jack is arranged at the inner center position of the main cylinder and is supported between the upper anchor tool and the lower anchor cylinder; the upper anchor tool and the lower anchor tool anchor the steel strand;

[0009] The upper anchor cylinder, the lower anchor cylinder and the through core jack are signal connected with the automatic control system, and the automatic control system controls the extension amount of the upper anchor cylinder and the lower anchor cylinder and the output pressure of the through core jack.

[0010] Preferably, a pressure sensor is mounted on the through-hole jack, and the pressure sensor is signal connected with the automatic control system.

[0011] Preferably, a stroke sensor is arranged on the upper anchor oil cylinder and the lower anchor oil cylinder respectively, and the stroke sensor is signal connected with the automatic control system.

[0012] Preferably, the cylinder shell outside the main cylinder is fixedly connected with the counterforce device.

[0013] Preferably, the upper anchor and the lower anchor stretch the steel strand, so that the steel strand is in a taut state.

[0014] Preferably, the upper anchor and the lower anchor are made of high-strength alloy material.

[0015] Compared with the prior art, the automatic pressure control device for the pressed-in open caisson has the following advantages:

[0016] 1. The automatic pressure control device for the pressed-in open caisson can realize real-time and comprehensive monitoring and regulation of pressure during the sinking process of the open caisson, and greatly improves the construction safety, timeliness and accuracy.

[0017] 2. The automatic pressure control device for the pressed-in open caisson realizes integral installation, use and disassembly of the pressure control device, and operation is more rapid. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic view of the automatic pressure control device for the pressed-in open caisson according to the present application.

[0019] In the figure, 10 is a main cylinder, 11 is a cylinder shell, 12 is a base, 13 is a steel strand, 20 is a through-hole jack, 30 is an upper anchor, 31 is an upper anchor oil cylinder, 40 is a lower anchor, and 41 is a lower anchor oil cylinder. DETAILED DESCRIPTION

[0020] In order to more fully describe the technical scheme of the above-mentioned utility model, the following specific embodiments are listed to prove the technical effects; it should be emphasized that these embodiments are used to illustrate the present application and are not used to limit the scope of the present application.

[0021] The automatic pressure control device for the pressed-in open caisson provided by the present application comprises a main cylinder 10, a through-hole jack 20, an upper anchor 30, a lower anchor 40 and an automatic control system (not shown), wherein: Figure 1 The automatic pressure control device for the pressed-in open caisson provided by the present application comprises a main cylinder 10, a through-hole jack 20, an upper anchor 30, a lower anchor 40 and an automatic control system (not shown), wherein:

[0022] The bottom of the main cylinder 10 is fixedly provided with a base 12, the center of the base 12 is provided with a steel strand 13, the base 12 is provided with a lower anchor 40, the lower anchor 40 is provided with a lower anchor oil cylinder 41, and the lower anchor 40 and the lower anchor oil cylinder 41 are connected through a hydraulic pipeline (not shown);

[0023] The top of the main cylinder 10 is provided with an upper anchor oil cylinder 31, the lower part of the upper anchor oil cylinder 31 is provided with an upper anchor 30, and the upper anchor 30 and the upper anchor oil cylinder 31 are connected through a hydraulic pipeline (not shown);

[0024] The through core jack 20 is arranged at the inner center position of the main cylinder 10 and is supported between the upper anchor 30 and the lower anchor oil cylinder 41; the upper anchor 30 and the lower anchor 40 anchor the steel strand 13 and realize tension control through the output pressure of the through core jack 20;

[0025] The upper anchor oil cylinder 31, the lower anchor oil cylinder 41 and the through core jack 20 are signal connected with the automatic control system, the automatic control system controls the extension and retraction amount of the upper anchor oil cylinder 31 and the lower anchor oil cylinder 41 and the output pressure of the through core jack 20, so as to realize pressure control in the whole sinking process.

[0026] The utility model can realize real-time and comprehensive monitoring and regulation of pressure in the sinking process of the open caisson, greatly improve construction safety, timeliness and accuracy, realize integral installation, use and disassembly of the pressure control device, and operation is more quick.

[0027] In some embodiments, the through core jack 20 is provided with a pressure sensor (not shown), and the pressure sensor is signal connected with the automatic control system, so as to realize real-time monitoring of the output pressure of the through core jack 20 and further realize automatic control of the pressure control device through the pressure data.

[0028] In some embodiments, the upper anchor oil cylinder 31 and the lower anchor oil cylinder 41 are respectively provided with a stroke sensor (not shown), and the stroke sensor is signal connected with the automatic control system, so as to realize real-time monitoring of the extension and retraction stroke of the oil cylinder, judge the sinking state of the open caisson through the stroke data, and timely adjust the working parameters of the pressure control device.

[0029] In some embodiments, the cylinder shell 11 outside the main cylinder 10 is fixedly connected with a counterforce device (not shown), the counterforce device is connected with the steel strand 13, and pressure is realized by controlling the extension and retraction of the steel strand 13.

[0030] In some embodiments, the upper anchor 30 and the lower anchor 40 stretch the steel strand 13, so that the steel strand 13 is in a tense state, and forces of each point of the open caisson are uniform.

[0031] In some embodiments, the upper anchor 30 and the lower anchor 40 can be made of high-strength alloy material (for example, the tensile strength is greater than 480 MPa, and the steel alloy, aluminum alloy, nickel steel alloy, etc. can be selected specifically) so as to improve the tensile strength and shear strength of the entire pressure control device.

[0032] The use method of the automatic pressure control device for the pressed-in type open caisson provided by the utility model comprises the following steps:

[0033] Step 1: install the main cylinder 10 and the base 12, pass the steel strand 13, and input the preset parameters into the automatic control system, wherein the preset parameters at least include the expansion and contraction amount and the stroke of the upper anchor oil cylinder 31 and the lower anchor oil cylinder 41, and can further include the threshold value of the pressure sensor and the like.

[0034] Step 2: install the upper anchor oil cylinder 31, connect the upper anchor 30, fix one end of the steel strand 13 by using the upper anchor 30, and perform tension control by using the through center jack 20 in the middle through hydraulic action;

[0035] Step 3: install the lower anchor oil cylinder 41 to connect the lower anchor 40, and perform anchoring of the other end of the steel strand 13;

[0036] Step 4: realize pressure control by controlling the expansion and contraction of the steel strand 13.

[0037] The above method is simple and fast in installation, use and disassembly.

[0038] In conclusion, the automatic pressure control device for the pressed-in open caisson provided by the utility model, the device comprises a main cylinder 10, a through core jack 20, an upper anchorage device 30, a lower anchorage device 40 and an automatic control system, a base 12 is fixedly installed at the bottom of the main cylinder 10, a steel strand 13 is arranged at the center of the base 12, the lower anchorage device 40 is installed on the base 12, a lower anchorage oil cylinder 41 is arranged on the lower anchorage device 40, and the lower anchorage device 40 is connected with the lower anchorage oil cylinder 41 through a hydraulic pipeline; an upper anchorage oil cylinder 31 is arranged at the top of the main cylinder 10, an upper anchorage device 30 is arranged at the lower part of the upper anchorage oil cylinder 31, and the upper anchorage device 30 is connected with the upper anchorage oil cylinder 31 through a hydraulic pipeline; the through core jack 20 is arranged at the inner center position of the main cylinder 10 and is supported between the upper anchorage device 30 and the lower anchorage oil cylinder 41; the upper anchorage device 30 and the lower anchorage device 40 anchor the steel strand 13; the upper anchorage oil cylinder 31, the lower anchorage oil cylinder 41 and the through core jack 20 are connected with the automatic control system, the automatic control system controls the extension and contraction amount of the upper anchorage oil cylinder 31 and the lower anchorage oil cylinder 41 and the output pressure of the through core jack 20, so that the pressure control of the whole sinking process is realized. The utility model can realize the real-time and comprehensive monitoring and regulation of the pressure in the sinking process of the open caisson, greatly improves the construction safety, timeliness and accuracy, realizes the integral installation, use and disassembly of the pressure control device and is more convenient to operate.

[0039] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the utility model claims and their equivalents, the utility model also intends to include these modifications and variations.

Claims

1. A press-in caisson automatic pressure control device, characterized by, The utility model relates to a kind of automatic tensioning device, including main cylinder, through heart jack, upper anchor, lower anchor and automatic control system, The bottom of the main cylinder is fixedly provided with a base, a steel strand is arranged in the center of the base, the lower anchor is installed on the base, the lower anchor is provided with a lower anchor cylinder, and the lower anchor and the lower anchor cylinder are connected by hydraulic pipeline; The top of the main cylinder is provided with an upper anchor cylinder, the upper anchor cylinder is provided with an upper anchor below, and the upper anchor and the upper anchor cylinder are connected by hydraulic pipeline; The through heart jack is arranged in the inner center position of the main cylinder and is supported between the upper anchor and the lower anchor cylinder, and the upper anchor and the lower anchor anchor the steel strand; The upper anchor cylinder, the lower anchor cylinder and the through heart jack are signal connected with the automatic control system, and the automatic control system controls the extension and contraction of the upper anchor cylinder and the lower anchor cylinder and the output pressure of the through heart jack.

2. The automatic pressure control device for press-in caisson according to claim 1, wherein A pressure sensor is installed on the through heart jack, and the pressure sensor is signal connected with the automatic control system.

3. The automatic pressure control device for press-in caisson according to claim 1, wherein Stroke sensors are respectively arranged on the upper anchor cylinder and the lower anchor cylinder, and the stroke sensors are signal connected with the automatic control system.

4. The automatic pressure control device for press-in caisson according to claim 1, wherein The shell of the main cylinder is fixedly connected with a counterforce device.

5. The automatic pressure control device for press-in caisson according to claim 1, wherein The upper anchor and the lower anchor stretch the steel strand, so that the steel strand is in a tense state.

6. The automatic pressure control device for press-in caisson according to claim 1, wherein The upper anchor and the lower anchor are made of high-strength alloy material.

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