Embedded emergency pressure relief pipe for deep foundation pit
Through the design of the emergency pressure relief pipe of the pre-embedded deep foundation pit, the combination of casing and steel pipes is used to solve the problem of water and soil pressure relief in the existing technology in the water and soil of the deep foundation pit in the existing technology, and rapid water discharge and pressure relief are achieved to prevent the side walls of the foundation pit from rupturing and instability.
Patent Information
- Application Number
- CN202323503385.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-21
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2033-12-21
AI Technical Summary
During the construction of municipal subway projects, the surrounding environment of the deep foundation pit is complex. The existing inflow drainage method causes secondary damage to the enclosure wall, and the operation speed is slow and the risk is high. It is impossible to timely and effectively remove pressure from the soil and soil outside the pit, resulting in cracking and instability of the side wall of the foundation pit.
An embedded deep foundation pit emergency pressure relief pipe is designed, including casing and steel flower pipes. Through the embedded casing, steel flower pipes are inserted into the soil in the enclosure wall to achieve rapid water discharge and pressure relief of the soil outside the pit.
Timely and effective pressure relief of the water and soil body of the foundation pit is achieved, preventing the side walls of the foundation pit from rupturing and instability, and improving construction safety and efficiency.
Smart Images
Figure CN222666850U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foundation pit dewatering and pressure relief, in particular to a pre-buried deep foundation pit emergency pressure relief pipe. Background Art
[0002] In the construction of municipal subway projects, most deep foundation pits have complex surrounding environments. During excavation, only drainage excavation can be carried out inside the pit, and precipitation outside the pit cannot be carried out. When the foundation pit is excavated and encounters factors such as heavy rain, the groundwater level rises and the water pressure outside the pit increases. The sudden increase in pressure may cause the retaining wall to rupture, the wall to become unstable, and eventually the foundation pit collapses, causing serious economic losses.
[0003] At present, most people use the driven drainage method for drainage, but the driven drainage method will cause secondary damage to the retaining wall, and the operation is slow and risky. The external environmental risks during the operation are uncontrollable, and the water and soil outside the pit cannot be relieved in time and effectively, which may eventually lead to rupture and instability of the side walls of the foundation pit, causing economic losses. Utility Model Content
[0004] In view of the defects existing in the prior art, the utility model provides a pre-buried deep foundation pit emergency pressure relief pipe, which can solve the problem of difficult pressure relief of water and soil outside the foundation pit, achieve timely and effective pressure relief of water and soil outside the pit, and prevent the side wall of the foundation pit from rupture and instability.
[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:
[0006] A pre-buried deep foundation pit emergency pressure relief pipe comprises a casing, both ends of which are respectively provided with an iron sheet and a sealing cover for blocking the casing; a steel flower pipe is arranged inside the casing along the length direction of the casing.
[0007] By means of the utility model, the staff can pre-embed and fix the casing in the retaining wall of the foundation pit, and the installation length is the same as the thickness of the retaining wall. When drainage and pressure relief are needed, the cover can be directly opened, a columnar object can be inserted into the casing, and then the object can be hammered to push the cone head of the steel pipe to pierce the iron sheet, so that the steel pipe is inserted into the soil outside the retaining wall. The water in the soil outside the retaining wall enters the casing through the through hole on the steel pipe and is directly discharged, thereby facilitating and quickly draining water and relieving pressure on the soil, and better preventing the side wall of the foundation pit from rupture and instability.
[0008] Preferably, the side wall of the sleeve at one end close to the cover shrinks inwardly along the circumferential direction to form a clamping portion.
[0009] With the utility model, when a worker inserts a steel flower pipe into a sleeve, one end of the steel flower pipe is pressed tightly against the clamping portion, thereby facilitating the fixing of the steel flower pipe and preventing the steel flower pipe from moving in the sleeve.
[0010] Preferably, a sealing mechanism is provided at the sealing cover, and the sealing mechanism includes a rubber gasket arranged on the inner wall of the sleeve; a clamping block is provided at one end of the clamping portion close to the sealing cover, and a clamping groove matching the clamping block is provided at the sealing cover; a connecting rod extending into the sleeve is provided at the sealing cover, a rubber plug is provided at one end of the connecting rod away from the sealing cover, a groove for the connecting rod to extend into is provided inside the rubber plug, a stopper is provided at the end of the connecting rod extending into the groove, and a spring is provided in the groove to squeeze the stopper and push the rubber plug into the sleeve.
[0011] With the utility model, when the sealing cover is used to seal the sleeve, the installer first covers the sealing cover on the sleeve opening. At this time, the clamping block at the sleeve opening is inserted into the clamping groove on the sealing cover to fix the sealing cover; at the same time, the spring will push the rubber plug to press against the rubber gasket to seal the sleeve; thereby, the sealing performance of the sleeve is better improved.
[0012] Preferably, a steel wire mesh is provided between the steel flower tube and the inner wall of the sleeve and is sleeved on the steel flower tube.
[0013] By adopting the utility model, when the steel flower pipe is inserted into the soil layer, the steel wire mesh is driven to enter the soil layer together, and the steel wire mesh blocks the soil from entering the steel flower pipe from the through hole on the side wall of the steel flower pipe, thereby preventing the soil from clogging the steel flower pipe.
[0014] Preferably, a circular ring is sleeved on the outer side wall of the sleeve.
[0015] With the utility model, after the sleeve is buried in the enclosure wall, the circular ring blocks water from passing through the enclosure wall along the outer side wall of the sleeve.
[0016] Preferably, a fire hose connector is provided on the outer side wall of the clamping portion close to one end of the cover.
[0017] The utility model can be directly connected to a fire hose when in use, and the operation is simple and fast, and the drainage is convenient.
[0018] Preferably, a reinforcement beam is provided at one end of the steel flower tube close to the cover.
[0019] According to the utility model, when a worker hits a steel flower pipe with a columnar object, he first places one end of the columnar object against the reinforcing beam, and then hits the reinforcing beam, thereby pushing the steel flower pipe to move, thereby preventing the columnar object from hitting and deforming the steel flower pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 Schematic diagram of the sleeve in Example 1.
[0021] Figure 2 This is an overall exploded view of the pressure relief pipe in Example 1.
[0022] Figure 3 This is a side exploded view of the pressure relief pipe in Example 1.
[0023] Figure 4 This is a schematic diagram of the card block in Example 1.
[0024] Figure 5 Schematic diagram of the cover in Example 1.
[0025] Figure 6 This is a cross-sectional view of the cover in Example 1. DETAILED DESCRIPTION
[0026] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.
[0027] Example 1
[0028] like Figure 1-5 As shown, this embodiment provides a pre-buried deep foundation pit emergency pressure relief pipe, which includes a casing 1, with an iron sheet 9 and a cover 5 for sealing the casing 1 at both ends; a steel flower pipe 6 is arranged inside the casing 1 along the length direction of the casing 1.
[0029] Through this embodiment, the staff can pre-embed and fix the sleeve 1 in the retaining wall of the foundation pit, and the installation length is the same as the thickness of the retaining wall. When drainage and pressure relief are needed, the cover 5 can be directly opened, and a columnar object can be inserted into the sleeve 1, and then the object can be hammered to push the cone head of the steel flower pipe 6 to pierce the iron sheet 9, so that the steel flower pipe 6 is inserted into the soil outside the retaining wall. The water in the soil outside the retaining wall enters the sleeve 1 through the through holes on the steel flower pipe 6 and is directly discharged, thereby facilitating and quickly draining water and relieving pressure on the soil; better preventing the side wall of the foundation pit from rupture and instability.
[0030] In this embodiment, the side wall of one end of the sleeve 1 close to the sealing cover 5 shrinks inwardly along the circumferential direction to form a clamping portion.
[0031] Through this embodiment, when the staff inserts the steel flower tube 6 into the sleeve 1, one end of the steel flower tube 6 is pressed against the clamping part, thereby facilitating the fixing of the steel flower tube 6 and preventing the steel flower tube 6 from moving in the sleeve 1.
[0032] In this embodiment, a sealing mechanism is provided at the cover 5, and the sealing mechanism includes a rubber gasket 4 arranged on the inner wall of the sleeve 1; a clamping block 16 is provided at one end of the clamping portion close to the cover 5, and a clamping groove 10 matching the clamping block 16 is provided at the cover 5; a connecting rod 13 extending into the sleeve 1 is provided at the cover 5, and a rubber plug 11 is provided at one end of the connecting rod 13 away from the cover 5, and a groove 12 for the connecting rod 13 to extend into is provided inside the rubber plug 11, and a stopper 14 is provided at one end of the connecting rod 13 extending into the groove 12, and a spring 15 is provided in the groove 12 to squeeze the stopper 14 and push the rubber plug 11 into the sleeve 1.
[0033] Through this embodiment, when the cover 5 is used to block the sleeve 1, the installer first covers the cover 5 on the opening of the sleeve 1. At this time, the block 16 at the opening of the sleeve 1 is inserted into the slot 10 on the cover 5 to fix the cover 5; at the same time, the spring 15 will push the rubber plug 11 to press against the rubber gasket 4 to block the sleeve 1; thereby, the sealing performance of the sleeve 1 is better improved.
[0034] In this embodiment, a steel wire mesh 8 is provided between the steel flower tube 6 and the inner wall of the sleeve 1 and is sleeved on the steel flower tube 6 .
[0035] Through this embodiment, when the steel flower pipe 6 is inserted into the soil layer, the wire mesh 8 is driven into the soil layer together. The wire mesh 8 blocks the soil from entering the steel flower pipe 6 from the through holes on the side wall of the steel flower pipe 6, thereby preventing the soil from clogging the steel flower pipe 6.
[0036] In this embodiment, a circular ring 2 is sleeved on the outer side wall of the sleeve 1 .
[0037] According to this embodiment, after the casing 1 is buried in the enclosure wall, the ring 2 blocks water from passing through the enclosure wall along the outer wall of the casing 1 .
[0038] In this embodiment, a fire hose connector 3 is provided on the outer side wall of the clamping portion close to one end of the sealing cover 5 .
[0039] Through this embodiment, the fire hose can be directly connected during use, which is easy and quick to operate and convenient for drainage.
[0040] In this embodiment, a reinforcing beam 7 is provided at one end of the steel flower tube 6 close to the cover 5 .
[0041] Through this embodiment, when the staff hits the steel flower tube 6 with a columnar object, they first place one end of the columnar object against the reinforcement beam 7, and then hit the reinforcement beam 7, thereby pushing the steel flower tube 6 to move, thereby preventing the columnar object from deforming the steel flower tube 6.
[0042] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.
Claims
1. A pre-buried deep foundation pit emergency pressure relief pipe, characterized in that: The invention comprises a sleeve (1), wherein two ends of the sleeve (1) are respectively provided with an iron sheet (9) and a sealing cover (5) for sealing the sleeve (1); and a steel flower tube (6) is arranged inside the sleeve (1) along the length direction of the sleeve (1).
2. The pre-buried deep foundation pit emergency pressure relief pipe according to claim 1, characterized in that: The side wall of one end of the sleeve (1) close to the sealing cover (5) shrinks inwardly along the circumferential direction to form a clamping portion.
3. The pre-buried deep foundation pit emergency pressure relief pipe according to claim 2 is characterized in that: The sealing cover (5) is provided with a sealing mechanism, which comprises a rubber gasket (4) arranged on the inner wall of the sleeve (1); a clamping block (16) is provided at one end of the clamping portion close to the sealing cover (5), and a clamping groove (10) matched with the clamping block (16) is provided at the sealing cover (5); a connecting rod (13) extending into the sleeve (1) is provided at the sealing cover (5), a rubber plug (11) is provided at one end of the connecting rod (13) away from the sealing cover (5), a groove (12) for the connecting rod (13) to extend into is provided inside the rubber plug (11), a stopper (14) is provided at one end of the connecting rod (13) extending into the groove (12), and a spring (15) is provided in the groove (12) for squeezing the stopper (14) to push the rubber plug (11) to extend into the sleeve (1).
4. The pre-buried deep foundation pit emergency pressure relief pipe according to claim 1, characterized in that: A steel wire mesh (8) sleeved on the steel flower tube (6) is provided between the steel flower tube (6) and the inner side wall of the sleeve (1).
5. The pre-buried deep foundation pit emergency pressure relief pipe according to claim 1, characterized in that: A circular ring (2) is sleeved on the outer side wall of the sleeve (1).
6. The pre-buried deep foundation pit emergency pressure relief pipe according to claim 2, characterized in that: A fire hose connector (3) is provided on the outer side wall of the clamping portion close to one end of the sealing cover (5).
7. The pre-buried deep foundation pit emergency pressure relief pipe according to claim 1, characterized in that: A reinforcing beam (7) is provided at one end of the steel flower tube (6) close to the cover (5).