A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Urban complex environment sensitive area transient thermal expansion stone cracking construction technology
The invention discloses a transient thermal expansion stone cracking construction process for a sensitive area of an urban complex environment. The transient thermal expansion stone cracking construction process comprises the following steps of construction preparation, drilling, charging, filling and compacting, hole covering and protection, ignition stone cracking and small-size external transportation. According to the method, the rock or concrete structure to be broken is drilled, then the hole is filled with the stone cracking agent, the hole is sealed, the stone cracking agent is momentarily excited by current to be rapidly combusted in the limited space in the hole, gas in the closed space is rapidly heated and expanded, surrounding rock walls are extruded, and a pressure stress field is formed; when the tensile strength of the rock is lower than the tangential derived tensile force of the pressure stress, a radial crack is generated, so that the purpose of stone cracking is achieved, the swelled block is relieved by a breaking hammer, the process is safe and reliable, the influence on the periphery is small, the application range is wide, and the rock cracking device can be used for small-volume stone cracking of a narrow working face and can also be used for working of a large excavation face.
本发明公开了一种城市复杂环境敏感区域瞬态热膨胀裂石施工工艺，包括以下步骤：施工准备、钻孔、装药、填塞密实、孔口覆盖保护、点火裂石以及解小外运；本发明通过在拟破碎的岩石或混凝土结构上钻孔，然后在孔内装入裂石剂并封孔，用电流瞬间激发裂石剂在孔内有限的空间内迅速燃烧，使密闭空间内气体迅速受热膨而产生对周围岩壁挤压形成压应力场，当岩石的抗拉强度低于压应力在切向衍生的拉力时产生径向裂隙，从而达到裂石的目的，被胀裂的块体辅以破碎锤解小，工艺安全可靠，对周边影响小，适用范围广，可用于狭小作业面的小方量裂石，也可用于较大开挖面作业。
Urban complex environment sensitive area transient thermal expansion stone cracking construction technology
The invention discloses a transient thermal expansion stone cracking construction process for a sensitive area of an urban complex environment. The transient thermal expansion stone cracking construction process comprises the following steps of construction preparation, drilling, charging, filling and compacting, hole covering and protection, ignition stone cracking and small-size external transportation. According to the method, the rock or concrete structure to be broken is drilled, then the hole is filled with the stone cracking agent, the hole is sealed, the stone cracking agent is momentarily excited by current to be rapidly combusted in the limited space in the hole, gas in the closed space is rapidly heated and expanded, surrounding rock walls are extruded, and a pressure stress field is formed; when the tensile strength of the rock is lower than the tangential derived tensile force of the pressure stress, a radial crack is generated, so that the purpose of stone cracking is achieved, the swelled block is relieved by a breaking hammer, the process is safe and reliable, the influence on the periphery is small, the application range is wide, and the rock cracking device can be used for small-volume stone cracking of a narrow working face and can also be used for working of a large excavation face.
本发明公开了一种城市复杂环境敏感区域瞬态热膨胀裂石施工工艺，包括以下步骤：施工准备、钻孔、装药、填塞密实、孔口覆盖保护、点火裂石以及解小外运；本发明通过在拟破碎的岩石或混凝土结构上钻孔，然后在孔内装入裂石剂并封孔，用电流瞬间激发裂石剂在孔内有限的空间内迅速燃烧，使密闭空间内气体迅速受热膨而产生对周围岩壁挤压形成压应力场，当岩石的抗拉强度低于压应力在切向衍生的拉力时产生径向裂隙，从而达到裂石的目的，被胀裂的块体辅以破碎锤解小，工艺安全可靠，对周边影响小，适用范围广，可用于狭小作业面的小方量裂石，也可用于较大开挖面作业。
Urban complex environment sensitive area transient thermal expansion stone cracking construction technology
一种城市复杂环境敏感区域瞬态热膨胀裂石施工工艺
KANG DAYONG (author) / YI LINGBING (author) / LI WEIZHOU (author) / CHEN QINGHUAI (author) / LIU BOFENG (author) / WEI HUAJIE (author) / LIU YAO (author) / SHAO QI (author) / WANG ZONGYONG (author) / LV ZHAOLONG (author)
2024-07-19
Patent
Electronic Resource
Chinese
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