CN-116591138-B - Foundation settlement deformation monitoring device

Abstract

The application relates to the technical field of foundation settlement monitoring, and in particular relates to a foundation settlement deformation monitoring device which aims at the problem of uneven settlement occurring at the periphery of a building foundation, wherein the deformation monitoring device is in a belt shape and comprises an air belt and a plurality of deformation detection units, each deformation detection unit comprises a pressure cylinder, a push rod and a pressure measuring cylinder, the push rod is arranged in an air cavity of the pressure cylinder, the top end of the pressure cylinder is provided with an air inlet communicated with the air cavity, the pressure cylinder is connected with the air belt through the air inlet, the air cavity is arranged in the pressure measuring cylinder, the bottom end of the pressure measuring part penetrates through the air belt and is connected with the top of a piston, and the adjacent pressure measuring cylinders are communicated with the air cavity through a pipeline.

Inventors

• ZHAO SEN
• YANG YUANHONG
• LU PENG
• ZHANG XIANGQIAN
• LI LIXIA
• WANG YAOFENG
• Guo Binggun
• ZHANG JINLIANG
• YANG YANRONG
• SUN PENG
• WANG TAO
• LIU ZHIQIANG

Assignees

• 山西省交通规划勘察设计院有限公司

Dates

Publication Date

20260505

Application Date

20230629

Claims (5)

1. 1. The foundation settlement deformation monitoring device is characterized in that the deformation monitoring device is in a strip shape, the deformation monitoring device comprises an air belt (1) and a plurality of deformation detection units, the deformation detection units comprise a pressure cylinder (3), a push rod (4) and a pressure measuring cylinder (5), an air cavity is formed in the pressure cylinder (3), the push rod (4) is arranged in the air cavity of the pressure cylinder (3), a piston (4 a) is arranged at the top end of the push rod (4), and the bottom end part of the push rod (4) is exposed out of the pressure cylinder (3); An air inlet communicated with the air cavity is formed in the top end of the pressure cylinder (3), the pressure cylinder (3) is connected with the air belt (1) through the air inlet, the air belt (1) is made of flexible materials, the air belt (1) can convey air into the air cavities of the pressure cylinders (3), and a first air pressure gauge (5 a) and a valve (1 b) are arranged on the air belt (1); The number and the positions of the pressure measuring cylinders (5) are in one-to-one correspondence with the pressure cylinders (3), air cavities are arranged in the pressure measuring cylinders (5), pressure measuring pieces (6) are arranged in the air cavities of the pressure measuring cylinders (5), the bottom ends of the pressure measuring pieces (6) penetrate through the air belts (1) and then are connected with the tops of the pistons (4 a), the air cavities of the adjacent pressure measuring cylinders (5) are communicated through pipelines, and a second air pressure gauge (1 a) is arranged on any pressure measuring cylinder (5); the pressure measuring piece (6) comprises a plug cylinder (6 a), the plug cylinder (6 a) is positioned in the air cavity of the pressure measuring cylinder (5), the plug cylinder (6 a) is in sliding sealing connection with the pressure measuring cylinder (5), a first elastic element (6 b) is sleeved on the plug cylinder (6 a), and the first elastic element (6 b) is used for pushing the plug cylinder (6 a) to fill the air cavity of the pressure measuring cylinder (5); The bottom end of the plug cylinder (6 a) is provided with a sleeve (6 c), the inside of the ejector rod (4) is provided with a locking rod (4 b), the bottom end part of the locking rod (4 b) is exposed out of the bottom end of the ejector rod (4), and the locking rod (4 b) is fixedly connected with the sleeve (6 c) when the bottom end of the locking rod (4 b) is in a pressed state; The bottom cover of locking pole (4 b) is equipped with second elastic element (4 b 1), the second element is used for promoting locking pole (4 b) decline, piston (4 a) and ejector pin (4) are run through respectively at the both ends of locking pole (4 b), be provided with lug (4 b 2) on locking pole (4 b), guide slot (4 c) have been seted up to the inner wall of ejector pin (4), the inside of lug (4 b 2) department guide slot (4 c), the top of locking pole (4 b) is provided with dogtooth (4 b 3), a plurality of tooth grooves (6 c 1) have been seted up to the inner wall arrangement of sleeve (6 c), lug (4 b 2) and the tooth groove (6 c 1) of sleeve (6 c) mesh when lug (4 b 2) of locking pole (4 b) are in guide slot (4 c) one end, lug (4 b 2) and tooth groove (6 c 1) of sleeve (6 c) break away from when lug (4 b 2) of locking pole (4 b) are in the guide slot (4 c) other end.
2. 2. The foundation settlement deformation monitoring device according to claim 1, wherein a scale rod (6 a 1) for detecting the settlement height of the foundation is arranged at the top of the plunger (6 a), and the scale rod (6 a 1) is exposed to the pressure measuring cylinder (5).
3. 3. The foundation settlement deformation monitoring device according to claim 1, wherein the bottom end of the pressure cylinder (3) is provided with a pressure relief opening (3 a), and the pressure relief opening (3 a) can ensure that the piston (4 a) cannot generate air pressure resistance in the downward moving process.
4. 4. The foundation settlement deformation monitoring device according to claim 1, wherein a support disc (3 b) is arranged at an air inlet at the top end of the pressure cylinder (3), the locking rod (4 b) penetrates through the support disc (3 b) and is in sliding connection with the support disc, and an opening for communicating the air belt (1) with the pressure cylinder (3) is arranged on the support disc (3 b).
5. 5. A foundation settlement deformation monitoring device according to claim 1, wherein adjacent pressure cylinders (3) are connected by means of a chain (7).

Description

Foundation settlement deformation monitoring device Technical Field The invention relates to the technical field of foundation settlement monitoring, in particular to a foundation settlement deformation monitoring device. Background Dead weight stress caused by the self gravity of soil exists in the foundation before building and geotechnical building are constructed. The load of the building and the geotechnical building is transmitted to the foundation through the bottom surface of the foundation or the embankment, so that the original stress state of the natural soil layer is changed, and under the action of the additional three-dimensional stress component, vertical, lateral and shearing deformation are generated in the foundation, so that the vertical and lateral displacement of each point is caused. Vertical deformation of the foundation surface is referred to as foundation settlement, or foundation settlement. The large-scale storage tank built on the soft foundation can generate various sedimentation deformations, including the integral uniform sedimentation of the storage tank, dishing sedimentation of a bottom plate, integral inclination sedimentation (also called plane inclination) of the storage tank, non-uniform sedimentation (also called non-plane inclination) of the periphery of the storage tank and the like, wherein the influence of the non-uniform sedimentation of the periphery of the storage tank on the structure is most unfavorable; CN108592871a discloses a storage tank foundation settlement monitoring device and system, when the storage tank foundation to be measured is settled, the first end of the driving cable is driven downwards along with the settlement of the storage tank foundation to be measured, the sliding block is driven to the horizontal direction of the ground all the time, the sliding block slides along with the driving cable to the horizontal direction of the ground, the optical fiber sensor detects the optical signal reflected by the end face of the second end after the sliding block slides, and the settlement displacement of the storage tank foundation to be measured can be determined according to the optical signal. However, the patent cannot detect the uneven settlement occurring around the foundation of the building, as shown in fig. 1, because the building is a formed structure and has a certain integrity, when the uneven settlement (also called non-planar inclination) occurs around the building, the building can still be temporarily and stably positioned on the foundation, however, if the contact area between the building and the ground is continuously reduced along with the gradual increase of the settlement range of the foundation, the cracking, the deflection and the even the damage of the building are directly caused, the danger caused at the moment is greatly enlarged, and the foundation settlement deformation monitoring device needs to be provided for the problem. Disclosure of Invention The technical problem of uneven settlement around the foundation of the building is solved. The application provides a foundation settlement deformation monitoring device which is in a strip shape, wherein the deformation monitoring device comprises an air belt and a plurality of deformation detection units, each deformation detection unit comprises a pressure cylinder, a push rod and a pressure measuring cylinder, an air cavity is arranged in each pressure cylinder, the push rod is arranged in the air cavity of each pressure cylinder, a piston is arranged at the top end of each push rod, and the bottom end part of each push rod is exposed out of each pressure cylinder; the top end of the pressure cylinder is provided with an air inlet communicated with the air cavity, the pressure cylinder is connected with an air belt through the air inlet, the air belt is made of flexible materials, the air belt can convey air into the air cavities of the pressure cylinders, and the air belt is provided with a first air pressure gauge and a valve; The number and the position of the pressure measuring cylinders are in one-to-one correspondence with the pressure cylinders, an air cavity is arranged in each pressure measuring cylinder, a pressure measuring piece is arranged in each pressure measuring cylinder air cavity, the bottom end of the pressure measuring piece penetrates through the air belt and then is connected with the top of the piston, the adjacent pressure measuring cylinders are communicated with the air cavities through pipelines, and a second air pressure gauge is arranged on any pressure measuring cylinder. Preferably, the pressure measuring piece comprises a plug cylinder, the plug cylinder is positioned in the pressure measuring cylinder air cavity, the plug cylinder is in sliding sealing connection with the pressure measuring cylinder, a first elastic element is sleeved on the plug cylinder and used for pushing the plug cylinder to fill the pressure measuring cylinder air c