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Device and method for testing in-situ static lateral soil pressure
The invention discloses an in-situ static lateral soil pressure testing device and a testing method.The testing device comprises a testing pile, an up-down pushing rod, a conical wedge block, a sensor pushing rod, a soil pressure box, a stepping screw and a rotating handle, a hollow stand column capable of determining the testing position is arranged in the testing pile, the up-down pushing rod is arranged in the hollow stand column, and the conical wedge block is arranged in the hollow stand column; the conical wedge block is arranged between the two up-down pushing rods, one end of the sensor pushing rod is connected with the soil pressure box, the other end of the sensor pushing rod penetrates through the hollow stand column and the soil pressure box to be arranged on the side face of the testing pile, and the rotating handle is connected with the up-down pushing rods and the stepping screw. The rotating handle rotates, so that the stepping screw moves up and down synchronously and drives the up-and-down pushing rod to move up and down, the conical wedge block arranged on the up-and-down pushing rod extrudes the sensor pushing rod, the sensor pushing rod moves outwards to push the soil pressure box into cohesive soil, and therefore the requirement for testing the static side pressure of the soil body is met.
本发明公开了一种原位静止侧向土压力的测试装置及测试方法，测试装置包括：测试桩，上下推动杆、锥形楔块、传感器推送杆、土压力盒、步进螺杆及转把，测试桩内设有可确定测试位置的空心立柱，上下推动杆设置在空心立柱内，锥形楔块设置在两上下推动杆之间，传感器推送杆的一端连接土压力盒，另一端穿过空心立柱，土压力盒设置在测试桩的侧面，转把连接上下推动杆及步进螺杆。转把转动，使步进螺杆同步上下移动，同时带动上下推动杆上下移动，使设置在上下推动杆上的锥形楔块挤压传感器推送杆，传感器推送杆往外移动将土压力盒推进黏性土中，从而满足测试土体静止侧压力的需求。
Device and method for testing in-situ static lateral soil pressure
The invention discloses an in-situ static lateral soil pressure testing device and a testing method.The testing device comprises a testing pile, an up-down pushing rod, a conical wedge block, a sensor pushing rod, a soil pressure box, a stepping screw and a rotating handle, a hollow stand column capable of determining the testing position is arranged in the testing pile, the up-down pushing rod is arranged in the hollow stand column, and the conical wedge block is arranged in the hollow stand column; the conical wedge block is arranged between the two up-down pushing rods, one end of the sensor pushing rod is connected with the soil pressure box, the other end of the sensor pushing rod penetrates through the hollow stand column and the soil pressure box to be arranged on the side face of the testing pile, and the rotating handle is connected with the up-down pushing rods and the stepping screw. The rotating handle rotates, so that the stepping screw moves up and down synchronously and drives the up-and-down pushing rod to move up and down, the conical wedge block arranged on the up-and-down pushing rod extrudes the sensor pushing rod, the sensor pushing rod moves outwards to push the soil pressure box into cohesive soil, and therefore the requirement for testing the static side pressure of the soil body is met.
本发明公开了一种原位静止侧向土压力的测试装置及测试方法，测试装置包括：测试桩，上下推动杆、锥形楔块、传感器推送杆、土压力盒、步进螺杆及转把，测试桩内设有可确定测试位置的空心立柱，上下推动杆设置在空心立柱内，锥形楔块设置在两上下推动杆之间，传感器推送杆的一端连接土压力盒，另一端穿过空心立柱，土压力盒设置在测试桩的侧面，转把连接上下推动杆及步进螺杆。转把转动，使步进螺杆同步上下移动，同时带动上下推动杆上下移动，使设置在上下推动杆上的锥形楔块挤压传感器推送杆，传感器推送杆往外移动将土压力盒推进黏性土中，从而满足测试土体静止侧压力的需求。
Device and method for testing in-situ static lateral soil pressure
一种原位静止侧向土压力的测试装置及测试方法
JIAN HONGYU (author) / ZHU JUNXIANG (author) / CAI QIZENG (author) / HUANG ZHILONG (author) / CAI KUNBIN (author)
2023-08-18
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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